From 5988794ac62a2d582857c0277cd0a0b592b4e661 Mon Sep 17 00:00:00 2001
From: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
Date: Fri, 14 Feb 2025 23:47:22 +0000
Subject: [PATCH] [AHM] Multi-block staking election pallet (#7282)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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## Multi Block Election Pallet
This PR adds the first iteration of the multi-block staking pallet.
From this point onwards, the staking and its election provider pallets
are being customized to work in AssetHub. While usage in solo-chains is
still possible, it is not longer the main focus of this pallet. For a
safer usage, please fork and user an older version of this pallet.
---
## Replaces
- [x] https://github.com/paritytech/polkadot-sdk/pull/6034
- [x] https://github.com/paritytech/polkadot-sdk/pull/5272
## Related PRs:
- [x] https://github.com/paritytech/polkadot-sdk/pull/7483
- [ ] https://github.com/paritytech/polkadot-sdk/pull/7357
- [ ] https://github.com/paritytech/polkadot-sdk/pull/7424
- [ ] https://github.com/paritytech/polkadot-staking-miner/pull/955
This branch can be periodically merged into
https://github.com/paritytech/polkadot-sdk/pull/7358 ->
https://github.com/paritytech/polkadot-sdk/pull/6996
## TODOs:
- [x] rebase to master
- Benchmarking for staking critical path
- [x] snapshot
- [x] election result
- Benchmarking for EPMB critical path
- [x] snapshot
- [x] verification
- [x] submission
- [x] unsigned submission
- [ ] election results fetching
- [ ] Fix deletion weights. Either of
- [ ] Garbage collector + lazy removal of all paged storage items
- [ ] Confirm that deletion is small PoV footprint.
- [ ] Move election prediction to be push based. @tdimitrov
- [ ] integrity checks for bounds
- [ ] Properly benchmark this as a part of CI -- for now I will remove
them as they are too slow
- [x] add try-state to all pallets
- [x] Staking to allow genesis dev accounts to be created internally
- [x] Decouple miner config so @niklasad1 can work on the miner
72841b731727e69db38f9bd616190aa8d50a56ba
- [x] duplicate snapshot page reported by @niklasad1
- [ ] https://github.com/paritytech/polkadot-sdk/pull/6520 or equivalent
-- during snapshot, `VoterList` must be locked
- [ ] Move target snapshot to a separate block
---------
Co-authored-by: Gonçalo Pestana <g6pestana@gmail.com>
Co-authored-by: Ankan <10196091+Ank4n@users.noreply.github.com>
Co-authored-by: command-bot <>
Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>
Co-authored-by: Giuseppe Re <giuseppe.re@parity.io>
Co-authored-by: cmd[bot] <41898282+github-actions[bot]@users.noreply.github.com>
---
.github/workflows/runtimes-matrix.json | 2 +-
.github/workflows/tests.yml | 2 +-
Cargo.lock | 28 +
Cargo.toml | 1 +
.../chains/relays/westend/src/genesis.rs | 10 +-
polkadot/runtime/common/src/try_runtime.rs | 2 +-
.../src/disputes/slashing/benchmarking.rs | 4 +
polkadot/runtime/test-runtime/src/lib.rs | 11 +-
.../westend/src/genesis_config_presets.rs | 12 +-
polkadot/runtime/westend/src/lib.rs | 23 +-
.../src/weights/pallet_fast_unstake.rs | 2 -
.../westend/src/weights/pallet_staking.rs | 67 +-
prdoc/pr_6034.prdoc | 25 +
prdoc/pr_6689.prdoc | 7 +-
prdoc/pr_7042.prdoc | 4 +-
prdoc/pr_7282.prdoc | 72 +
.../frame-umbrella-weight-template.hbs | 17 +
substrate/.maintain/frame-weight-template.hbs | 17 +
substrate/bin/node/cli/Cargo.toml | 3 +
substrate/bin/node/cli/src/chain_spec.rs | 32 +-
.../cli/tests/res/default_genesis_config.json | 1 +
substrate/bin/node/runtime/Cargo.toml | 6 +
substrate/bin/node/runtime/src/constants.rs | 3 +-
substrate/bin/node/runtime/src/lib.rs | 333 ++-
substrate/bin/node/testing/src/genesis.rs | 5 +-
substrate/frame/babe/src/mock.rs | 10 +-
.../bags-list/remote-tests/src/snapshot.rs | 8 +-
substrate/frame/bags-list/src/benchmarks.rs | 119 +
substrate/frame/bags-list/src/lib.rs | 2 +-
substrate/frame/bags-list/src/list/mod.rs | 11 +-
substrate/frame/beefy/Cargo.toml | 1 +
substrate/frame/beefy/src/mock.rs | 15 +-
substrate/frame/beefy/src/tests.rs | 2 +
substrate/frame/benchmarking/src/lib.rs | 2 +-
substrate/frame/delegated-staking/src/mock.rs | 10 +-
.../election-provider-multi-block/Cargo.toml | 84 +
.../src/benchmarking.rs | 170 ++
.../src/helpers.rs | 227 ++
.../election-provider-multi-block/src/lib.rs | 2556 +++++++++++++++++
.../src/mock/mod.rs | 700 +++++
.../src/mock/signed.rs | 255 ++
.../src/mock/staking.rs | 238 ++
.../src/mock/weight_info.rs | 85 +
.../src/signed/benchmarking.rs | 171 ++
.../src/signed/mod.rs | 858 ++++++
.../src/signed/tests.rs | 554 ++++
.../src/types.rs | 363 +++
.../src/unsigned/benchmarking.rs | 79 +
.../src/unsigned/miner.rs | 1972 +++++++++++++
.../src/unsigned/mod.rs | 633 ++++
.../src/verifier/benchmarking.rs | 234 ++
.../src/verifier/impls.rs | 955 ++++++
.../src/verifier/mod.rs | 271 ++
.../src/verifier/tests.rs | 1266 ++++++++
.../src/weights/measured/mod.rs | 21 +
.../pallet_election_provider_multi_block.rs | 364 +++
...et_election_provider_multi_block_signed.rs | 272 ++
..._election_provider_multi_block_unsigned.rs | 153 +
..._election_provider_multi_block_verifier.rs | 361 +++
.../src/weights/mel/mod.rs | 21 +
.../pallet_election_provider_multi_block.rs | 362 +++
...et_election_provider_multi_block_signed.rs | 270 ++
..._election_provider_multi_block_unsigned.rs | 151 +
..._election_provider_multi_block_verifier.rs | 359 +++
.../src/weights/mod.rs | 22 +
.../src/weights/zero.rs | 89 +
.../src/benchmarking.rs | 21 +-
.../election-provider-multi-phase/src/lib.rs | 315 +-
.../election-provider-multi-phase/src/mock.rs | 62 +-
.../src/signed.rs | 8 +-
.../src/unsigned.rs | 285 +-
.../test-staking-e2e/src/mock.rs | 19 +-
.../election-provider-support/Cargo.toml | 3 +
.../benchmarking/src/inner.rs | 2 +-
.../solution-type/fuzzer/src/compact.rs | 3 +-
.../solution-type/src/codec.rs | 1 +
.../solution-type/src/single_page.rs | 90 +-
.../election-provider-support/src/bounds.rs | 10 +
.../election-provider-support/src/lib.rs | 622 +++-
.../election-provider-support/src/onchain.rs | 315 +-
.../election-provider-support/src/tests.rs | 30 +-
.../election-provider-support/src/traits.rs | 23 +
.../elections-phragmen/src/benchmarking.rs | 12 +-
substrate/frame/fast-unstake/src/mock.rs | 26 +-
substrate/frame/grandpa/Cargo.toml | 1 +
substrate/frame/grandpa/src/mock.rs | 14 +-
.../nomination-pools/benchmarking/src/mock.rs | 2 +-
.../test-delegate-stake/src/mock.rs | 2 +-
.../frame/offences/benchmarking/src/mock.rs | 5 +-
substrate/frame/root-offences/src/mock.rs | 10 +-
.../frame/session/benchmarking/src/inner.rs | 2 +
.../frame/session/benchmarking/src/mock.rs | 5 +-
substrate/frame/session/src/lib.rs | 11 +-
substrate/frame/staking/Cargo.toml | 9 +-
substrate/frame/staking/src/benchmarking.rs | 316 +-
substrate/frame/staking/src/lib.rs | 259 +-
substrate/frame/staking/src/migrations.rs | 33 +-
substrate/frame/staking/src/mock.rs | 135 +-
substrate/frame/staking/src/pallet/impls.rs | 655 +++--
substrate/frame/staking/src/pallet/mod.rs | 417 ++-
substrate/frame/staking/src/slashing.rs | 16 +-
substrate/frame/staking/src/tests.rs | 616 ++--
.../frame/staking/src/tests_paged_election.rs | 971 +++++++
substrate/frame/staking/src/weights.rs | 136 +-
.../construct_runtime/expand/outer_enums.rs | 2 +-
.../procedural/src/pallet/expand/event.rs | 2 +-
substrate/frame/support/src/lib.rs | 1 +
.../deprecated_where_block.stderr | 16 +-
.../primitives/npos-elections/src/helpers.rs | 28 +-
.../primitives/npos-elections/src/lib.rs | 71 +-
.../primitives/npos-elections/src/phragmen.rs | 4 +-
.../primitives/npos-elections/src/phragmms.rs | 2 +-
substrate/primitives/staking/src/lib.rs | 192 +-
substrate/primitives/staking/src/offence.rs | 12 +-
.../benchmarking-cli/src/pallet/command.rs | 6 +-
.../frame/benchmarking-cli/src/pallet/mod.rs | 2 +-
umbrella/Cargo.toml | 10 +-
umbrella/src/lib.rs | 4 +
118 files changed, 19048 insertions(+), 1751 deletions(-)
create mode 100644 prdoc/pr_6034.prdoc
create mode 100644 prdoc/pr_7282.prdoc
create mode 100644 substrate/frame/election-provider-multi-block/Cargo.toml
create mode 100644 substrate/frame/election-provider-multi-block/src/benchmarking.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/helpers.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/lib.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/mock/mod.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/mock/signed.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/mock/staking.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/mock/weight_info.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/signed/benchmarking.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/signed/mod.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/signed/tests.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/types.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/unsigned/benchmarking.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/unsigned/miner.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/unsigned/mod.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/verifier/benchmarking.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/verifier/impls.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/verifier/mod.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/verifier/tests.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/weights/measured/mod.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block_signed.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block_unsigned.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block_verifier.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/weights/mel/mod.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block_signed.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block_unsigned.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block_verifier.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/weights/mod.rs
create mode 100644 substrate/frame/election-provider-multi-block/src/weights/zero.rs
create mode 100644 substrate/frame/staking/src/tests_paged_election.rs
diff --git a/.github/workflows/runtimes-matrix.json b/.github/workflows/runtimes-matrix.json
index 5f981565377..8999491a20a 100644
--- a/.github/workflows/runtimes-matrix.json
+++ b/.github/workflows/runtimes-matrix.json
@@ -6,7 +6,7 @@
"header": "substrate/HEADER-APACHE2",
"template": "substrate/.maintain/frame-weight-template.hbs",
"bench_features": "runtime-benchmarks",
- "bench_flags": "--genesis-builder-policy=none --exclude-pallets=pallet_xcm,pallet_xcm_benchmarks::fungible,pallet_xcm_benchmarks::generic,pallet_nomination_pools,pallet_remark,pallet_transaction_storage",
+ "bench_flags": "--genesis-builder-policy=none --exclude-pallets=pallet_xcm,pallet_xcm_benchmarks::fungible,pallet_xcm_benchmarks::generic,pallet_nomination_pools,pallet_remark,pallet_transaction_storage,pallet_election_provider_multi_block,pallet_election_provider_multi_block::signed,pallet_election_provider_multi_block::unsigned,pallet_election_provider_multi_block::verifier",
"uri": null,
"is_relay": false
},
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6d6e393b041..ba0574b51e6 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -32,7 +32,7 @@ jobs:
- name: Checkout
uses: actions/checkout@v4
- name: script
- run: forklift cargo run --locked --release -p staging-node-cli --bin substrate-node --features runtime-benchmarks --quiet -- benchmark pallet --chain dev --pallet "*" --extrinsic "*" --steps 2 --repeat 1 --quiet
+ run: forklift cargo run --locked --release -p staging-node-cli --bin substrate-node --features runtime-benchmarks --quiet -- benchmark pallet --chain dev --pallet "*" --exclude-pallets=pallet_election_provider_multi_block,pallet_election_provider_multi_block::signed,pallet_election_provider_multi_block::unsigned,pallet_election_provider_multi_block::verifier --extrinsic "*" --steps 2 --repeat 1 --quiet
# cf https://github.com/paritytech/polkadot-sdk/issues/1652
test-syscalls:
diff --git a/Cargo.lock b/Cargo.lock
index cd323584c9d..83ce22d1cc9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -7324,6 +7324,7 @@ dependencies = [
"sp-io 30.0.0",
"sp-npos-elections 26.0.0",
"sp-runtime 31.0.1",
+ "sp-std 14.0.0",
]
[[package]]
@@ -12465,6 +12466,7 @@ dependencies = [
"sp-session 27.0.0",
"sp-staking 26.0.0",
"sp-state-machine 0.35.0",
+ "sp-tracing 16.0.0",
]
[[package]]
@@ -13376,6 +13378,29 @@ dependencies = [
"sp-tracing 16.0.0",
]
+[[package]]
+name = "pallet-election-provider-multi-block"
+version = "0.9.0"
+dependencies = [
+ "frame-benchmarking 28.0.0",
+ "frame-election-provider-support 28.0.0",
+ "frame-support 28.0.0",
+ "frame-system 28.0.0",
+ "log",
+ "pallet-balances 28.0.0",
+ "parity-scale-codec",
+ "parking_lot 0.12.3",
+ "rand",
+ "scale-info",
+ "sp-arithmetic 23.0.0",
+ "sp-core 28.0.0",
+ "sp-io 30.0.0",
+ "sp-npos-elections 26.0.0",
+ "sp-runtime 31.0.1",
+ "sp-std 14.0.0",
+ "sp-tracing 16.0.0",
+]
+
[[package]]
name = "pallet-election-provider-multi-phase"
version = "27.0.0"
@@ -13765,6 +13790,7 @@ dependencies = [
"sp-runtime 31.0.1",
"sp-session 27.0.0",
"sp-staking 26.0.0",
+ "sp-tracing 16.0.0",
]
[[package]]
@@ -15453,6 +15479,7 @@ dependencies = [
"pallet-staking-reward-curve",
"pallet-timestamp 27.0.0",
"parity-scale-codec",
+ "rand",
"rand_chacha",
"scale-info",
"serde",
@@ -18760,6 +18787,7 @@ dependencies = [
"pallet-delegated-staking 1.0.0",
"pallet-democracy 28.0.0",
"pallet-dev-mode 10.0.0",
+ "pallet-election-provider-multi-block",
"pallet-election-provider-multi-phase 27.0.0",
"pallet-election-provider-support-benchmarking 27.0.0",
"pallet-elections-phragmen 29.0.0",
diff --git a/Cargo.toml b/Cargo.toml
index 2b635d5966b..ba8af51c3a5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -344,6 +344,7 @@ members = [
"substrate/frame/core-fellowship",
"substrate/frame/delegated-staking",
"substrate/frame/democracy",
+ "substrate/frame/election-provider-multi-block",
"substrate/frame/election-provider-multi-phase",
"substrate/frame/election-provider-multi-phase/test-staking-e2e",
"substrate/frame/election-provider-support",
diff --git a/cumulus/parachains/integration-tests/emulated/chains/relays/westend/src/genesis.rs b/cumulus/parachains/integration-tests/emulated/chains/relays/westend/src/genesis.rs
index 2f02ca5f193..4dc45cf7aec 100644
--- a/cumulus/parachains/integration-tests/emulated/chains/relays/westend/src/genesis.rs
+++ b/cumulus/parachains/integration-tests/emulated/chains/relays/westend/src/genesis.rs
@@ -19,7 +19,7 @@ use sp_authority_discovery::AuthorityId as AuthorityDiscoveryId;
use sp_consensus_babe::AuthorityId as BabeId;
use sp_consensus_beefy::ecdsa_crypto::AuthorityId as BeefyId;
use sp_core::storage::Storage;
-use sp_runtime::Perbill;
+use sp_runtime::{BoundedVec, Perbill};
// Polkadot
use polkadot_primitives::{AssignmentId, ValidatorId};
@@ -87,7 +87,13 @@ pub fn genesis() -> Storage {
.iter()
.map(|x| (x.0.clone(), x.1.clone(), STASH, pallet_staking::StakerStatus::Validator))
.collect(),
- invulnerables: validators::initial_authorities().iter().map(|x| x.0.clone()).collect(),
+ invulnerables: BoundedVec::try_from(
+ validators::initial_authorities()
+ .iter()
+ .map(|x| x.0.clone())
+ .collect::<Vec<_>>(),
+ )
+ .expect("Limit for staking invulnerables must be less than initial authorities."),
force_era: pallet_staking::Forcing::ForceNone,
slash_reward_fraction: Perbill::from_percent(10),
..Default::default()
diff --git a/polkadot/runtime/common/src/try_runtime.rs b/polkadot/runtime/common/src/try_runtime.rs
index b22e1703292..795249dde20 100644
--- a/polkadot/runtime/common/src/try_runtime.rs
+++ b/polkadot/runtime/common/src/try_runtime.rs
@@ -36,7 +36,7 @@ where
let all_stakers = Ledger::<T>::iter().map(|(ctrl, l)| (ctrl, l.stash)).collect::<BTreeSet<_>>();
let mut all_exposed = BTreeSet::new();
- ErasStakers::<T>::iter().for_each(|(_, val, expo)| {
+ ErasStakersPaged::<T>::iter().for_each(|((_era, val, _page), expo)| {
all_exposed.insert(val);
all_exposed.extend(expo.others.iter().map(|ie| ie.who.clone()))
});
diff --git a/polkadot/runtime/parachains/src/disputes/slashing/benchmarking.rs b/polkadot/runtime/parachains/src/disputes/slashing/benchmarking.rs
index bfd46d75243..68d9ee44527 100644
--- a/polkadot/runtime/parachains/src/disputes/slashing/benchmarking.rs
+++ b/polkadot/runtime/parachains/src/disputes/slashing/benchmarking.rs
@@ -82,8 +82,12 @@ where
pallet_session::Pallet::<T>::on_initialize(BlockNumberFor::<T>::one());
initializer::Pallet::<T>::on_initialize(BlockNumberFor::<T>::one());
+
// skip sessions until the new validator set is enacted
while pallet_session::Pallet::<T>::validators().len() < n as usize {
+ // initialize stakers in pallet_staking. This is suboptimal, but an easy way to avoid this
+ // being an infinite loop.
+ pallet_staking::Pallet::<T>::populate_staking_election_testing_benchmarking_only().unwrap();
pallet_session::Pallet::<T>::rotate_session();
}
initializer::Pallet::<T>::on_finalize(BlockNumberFor::<T>::one());
diff --git a/polkadot/runtime/test-runtime/src/lib.rs b/polkadot/runtime/test-runtime/src/lib.rs
index f592dc2b61d..c0985873532 100644
--- a/polkadot/runtime/test-runtime/src/lib.rs
+++ b/polkadot/runtime/test-runtime/src/lib.rs
@@ -79,7 +79,7 @@ use polkadot_runtime_common::{
use polkadot_runtime_parachains::reward_points::RewardValidatorsWithEraPoints;
use sp_authority_discovery::AuthorityId as AuthorityDiscoveryId;
use sp_consensus_beefy::ecdsa_crypto::{AuthorityId as BeefyId, Signature as BeefySignature};
-use sp_core::{ConstU32, OpaqueMetadata};
+use sp_core::{ConstBool, ConstU32, OpaqueMetadata};
use sp_mmr_primitives as mmr;
use sp_runtime::{
curve::PiecewiseLinear,
@@ -348,7 +348,7 @@ parameter_types! {
pub const MaxExposurePageSize: u32 = 64;
pub const MaxNominators: u32 = 256;
pub const MaxAuthorities: u32 = 100_000;
- pub const OnChainMaxWinners: u32 = u32::MAX;
+ pub const OnChainMaxWinners: u32 = MaxAuthorities::get();
// Unbounded number of election targets and voters.
pub ElectionBoundsOnChain: ElectionBounds = ElectionBoundsBuilder::default().build();
}
@@ -361,7 +361,9 @@ impl onchain::Config for OnChainSeqPhragmen {
type DataProvider = Staking;
type WeightInfo = ();
type Bounds = ElectionBoundsOnChain;
- type MaxWinners = OnChainMaxWinners;
+ type MaxWinnersPerPage = OnChainMaxWinners;
+ type MaxBackersPerWinner = ConstU32<{ u32::MAX }>;
+ type Sort = ConstBool<true>;
}
/// Upper limit on the number of NPOS nominations.
@@ -400,6 +402,9 @@ impl pallet_staking::Config for Runtime {
type EventListeners = ();
type WeightInfo = ();
type DisablingStrategy = pallet_staking::UpToLimitWithReEnablingDisablingStrategy;
+ type MaxValidatorSet = MaxAuthorities;
+ type MaxInvulnerables = ConstU32<20>;
+ type MaxDisabledValidators = ConstU32<100>;
}
parameter_types! {
diff --git a/polkadot/runtime/westend/src/genesis_config_presets.rs b/polkadot/runtime/westend/src/genesis_config_presets.rs
index 76c0ce015c0..af5e3607df4 100644
--- a/polkadot/runtime/westend/src/genesis_config_presets.rs
+++ b/polkadot/runtime/westend/src/genesis_config_presets.rs
@@ -33,7 +33,7 @@ use sp_consensus_grandpa::AuthorityId as GrandpaId;
use sp_core::{crypto::get_public_from_string_or_panic, sr25519};
use sp_genesis_builder::PresetId;
use sp_keyring::Sr25519Keyring;
-use sp_runtime::Perbill;
+use sp_runtime::{BoundedVec, Perbill};
use westend_runtime_constants::currency::UNITS as WND;
/// Helper function to generate stash, controller and session key from seed
@@ -202,7 +202,10 @@ fn westend_testnet_genesis(
.iter()
.map(|x| (x.0.clone(), x.0.clone(), STASH, StakerStatus::<AccountId>::Validator))
.collect::<Vec<_>>(),
- invulnerables: initial_authorities.iter().map(|x| x.0.clone()).collect::<Vec<_>>(),
+ invulnerables: BoundedVec::try_from(
+ initial_authorities.iter().map(|x| x.0.clone()).collect::<Vec<_>>()
+ )
+ .expect("Too many invulnerable validators: upper limit is MaxInvulnerables from pallet staking config"),
force_era: Forcing::NotForcing,
slash_reward_fraction: Perbill::from_percent(10),
},
@@ -373,7 +376,10 @@ fn westend_staging_testnet_config_genesis() -> serde_json::Value {
.iter()
.map(|x| (x.0.clone(), x.0.clone(), STASH, StakerStatus::<AccountId>::Validator))
.collect::<Vec<_>>(),
- invulnerables: initial_authorities.iter().map(|x| x.0.clone()).collect::<Vec<_>>(),
+ invulnerables: BoundedVec::try_from(
+ initial_authorities.iter().map(|x| x.0.clone()).collect::<Vec<_>>()
+ )
+ .expect("Too many invulnerable validators: upper limit is MaxInvulnerables from pallet staking config"),
force_era: Forcing::ForceNone,
slash_reward_fraction: Perbill::from_percent(10),
},
diff --git a/polkadot/runtime/westend/src/lib.rs b/polkadot/runtime/westend/src/lib.rs
index cade86e5866..5d7a8f51625 100644
--- a/polkadot/runtime/westend/src/lib.rs
+++ b/polkadot/runtime/westend/src/lib.rs
@@ -96,7 +96,7 @@ use sp_consensus_beefy::{
ecdsa_crypto::{AuthorityId as BeefyId, Signature as BeefySignature},
mmr::{BeefyDataProvider, MmrLeafVersion},
};
-use sp_core::{ConstU8, OpaqueMetadata, RuntimeDebug, H256};
+use sp_core::{ConstBool, ConstU8, OpaqueMetadata, RuntimeDebug, H256};
use sp_runtime::{
generic, impl_opaque_keys,
traits::{
@@ -585,7 +585,10 @@ parameter_types! {
ElectionBoundsBuilder::default().voters_count(MaxElectingVoters::get().into()).build();
// Maximum winners that can be chosen as active validators
pub const MaxActiveValidators: u32 = 1000;
-
+ // One page only, fill the whole page with the `MaxActiveValidators`.
+ pub const MaxWinnersPerPage: u32 = MaxActiveValidators::get();
+ // Unbonded, thus the max backers per winner maps to the max electing voters limit.
+ pub const MaxBackersPerWinner: u32 = MaxElectingVoters::get();
}
frame_election_provider_support::generate_solution_type!(
@@ -600,12 +603,14 @@ frame_election_provider_support::generate_solution_type!(
pub struct OnChainSeqPhragmen;
impl onchain::Config for OnChainSeqPhragmen {
+ type Sort = ConstBool<true>;
type System = Runtime;
type Solver = SequentialPhragmen<AccountId, OnChainAccuracy>;
type DataProvider = Staking;
type WeightInfo = weights::frame_election_provider_support::WeightInfo<Runtime>;
- type MaxWinners = MaxActiveValidators;
type Bounds = ElectionBounds;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
+ type MaxWinnersPerPage = MaxWinnersPerPage;
}
impl pallet_election_provider_multi_phase::MinerConfig for Runtime {
@@ -618,7 +623,8 @@ impl pallet_election_provider_multi_phase::MinerConfig for Runtime {
as
frame_election_provider_support::ElectionDataProvider
>::MaxVotesPerVoter;
- type MaxWinners = MaxActiveValidators;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
+ type MaxWinners = MaxWinnersPerPage;
// The unsigned submissions have to respect the weight of the submit_unsigned call, thus their
// weight estimate function is wired to this call's weight.
@@ -652,6 +658,8 @@ impl pallet_election_provider_multi_phase::Config for Runtime {
type BetterSignedThreshold = ();
type OffchainRepeat = OffchainRepeat;
type MinerTxPriority = NposSolutionPriority;
+ type MaxWinners = MaxWinnersPerPage;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
type DataProvider = Staking;
#[cfg(any(feature = "fast-runtime", feature = "runtime-benchmarks"))]
type Fallback = onchain::OnChainExecution<OnChainSeqPhragmen>;
@@ -660,7 +668,8 @@ impl pallet_election_provider_multi_phase::Config for Runtime {
AccountId,
BlockNumber,
Staking,
- MaxActiveValidators,
+ MaxWinnersPerPage,
+ MaxBackersPerWinner,
)>;
type GovernanceFallback = onchain::OnChainExecution<OnChainSeqPhragmen>;
type Solver = SequentialPhragmen<
@@ -671,7 +680,6 @@ impl pallet_election_provider_multi_phase::Config for Runtime {
type BenchmarkingConfig = polkadot_runtime_common::elections::BenchmarkConfig;
type ForceOrigin = EnsureRoot<AccountId>;
type WeightInfo = weights::pallet_election_provider_multi_phase::WeightInfo<Self>;
- type MaxWinners = MaxActiveValidators;
type ElectionBounds = ElectionBounds;
}
@@ -753,6 +761,7 @@ impl pallet_staking::Config for Runtime {
type GenesisElectionProvider = onchain::OnChainExecution<OnChainSeqPhragmen>;
type VoterList = VoterList;
type TargetList = UseValidatorsMap<Self>;
+ type MaxValidatorSet = MaxActiveValidators;
type NominationsQuota = pallet_staking::FixedNominationsQuota<{ MaxNominations::get() }>;
type MaxUnlockingChunks = frame_support::traits::ConstU32<32>;
type HistoryDepth = frame_support::traits::ConstU32<84>;
@@ -761,6 +770,8 @@ impl pallet_staking::Config for Runtime {
type EventListeners = (NominationPools, DelegatedStaking);
type WeightInfo = weights::pallet_staking::WeightInfo<Runtime>;
type DisablingStrategy = pallet_staking::UpToLimitWithReEnablingDisablingStrategy;
+ type MaxInvulnerables = frame_support::traits::ConstU32<20>;
+ type MaxDisabledValidators = ConstU32<100>;
}
impl pallet_fast_unstake::Config for Runtime {
diff --git a/polkadot/runtime/westend/src/weights/pallet_fast_unstake.rs b/polkadot/runtime/westend/src/weights/pallet_fast_unstake.rs
index 8c061688fc6..dafac66f9d7 100644
--- a/polkadot/runtime/westend/src/weights/pallet_fast_unstake.rs
+++ b/polkadot/runtime/westend/src/weights/pallet_fast_unstake.rs
@@ -108,8 +108,6 @@ impl<T: frame_system::Config> pallet_fast_unstake::WeightInfo for WeightInfo<T>
/// Proof Skipped: ElectionProviderMultiPhase CurrentPhase (max_values: Some(1), max_size: None, mode: Measured)
/// Storage: Staking CurrentEra (r:1 w:0)
/// Proof: Staking CurrentEra (max_values: Some(1), max_size: Some(4), added: 499, mode: MaxEncodedLen)
- /// Storage: Staking ErasStakers (r:257 w:0)
- /// Proof Skipped: Staking ErasStakers (max_values: None, max_size: None, mode: Measured)
/// The range of component `v` is `[1, 256]`.
/// The range of component `b` is `[1, 64]`.
fn on_idle_check(v: u32, b: u32, ) -> Weight {
diff --git a/polkadot/runtime/westend/src/weights/pallet_staking.rs b/polkadot/runtime/westend/src/weights/pallet_staking.rs
index f1e7f5ba157..f0491a1daf6 100644
--- a/polkadot/runtime/westend/src/weights/pallet_staking.rs
+++ b/polkadot/runtime/westend/src/weights/pallet_staking.rs
@@ -48,6 +48,16 @@ use core::marker::PhantomData;
/// Weight functions for `pallet_staking`.
pub struct WeightInfo<T>(PhantomData<T>);
impl<T: frame_system::Config> pallet_staking::WeightInfo for WeightInfo<T> {
+ // TODO CI-FAIL: run CI bench bot
+ fn on_initialize_noop() -> Weight {
+ Default::default()
+ }
+ fn clear_election_metadata() -> Weight {
+ Default::default()
+ }
+ fn do_elect_paged_inner(_v: u32,) -> Weight {
+ Default::default()
+ }
/// Storage: `Staking::Bonded` (r:1 w:1)
/// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `MaxEncodedLen`)
/// Storage: `Staking::Ledger` (r:1 w:1)
@@ -490,8 +500,6 @@ impl<T: frame_system::Config> pallet_staking::WeightInfo for WeightInfo<T> {
/// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `MaxEncodedLen`)
/// Storage: `Staking::Ledger` (r:65 w:65)
/// Proof: `Staking::Ledger` (`max_values`: None, `max_size`: Some(1091), added: 3566, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ErasStakersClipped` (r:1 w:0)
- /// Proof: `Staking::ErasStakersClipped` (`max_values`: None, `max_size`: None, mode: `Measured`)
/// Storage: `Staking::ErasStakersOverview` (r:1 w:0)
/// Proof: `Staking::ErasStakersOverview` (`max_values`: None, `max_size`: Some(92), added: 2567, mode: `MaxEncodedLen`)
/// Storage: `Staking::ClaimedRewards` (r:1 w:1)
@@ -600,61 +608,6 @@ impl<T: frame_system::Config> pallet_staking::WeightInfo for WeightInfo<T> {
/// Proof: `VoterList::CounterForListNodes` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
/// Storage: `VoterList::ListBags` (r:178 w:0)
/// Proof: `VoterList::ListBags` (`max_values`: None, `max_size`: Some(82), added: 2557, mode: `MaxEncodedLen`)
- /// Storage: `VoterList::ListNodes` (r:110 w:0)
- /// Proof: `VoterList::ListNodes` (`max_values`: None, `max_size`: Some(154), added: 2629, mode: `MaxEncodedLen`)
- /// Storage: `Staking::Bonded` (r:110 w:0)
- /// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `MaxEncodedLen`)
- /// Storage: `Staking::Ledger` (r:110 w:0)
- /// Proof: `Staking::Ledger` (`max_values`: None, `max_size`: Some(1091), added: 3566, mode: `MaxEncodedLen`)
- /// Storage: `Staking::Nominators` (r:110 w:0)
- /// Proof: `Staking::Nominators` (`max_values`: None, `max_size`: Some(558), added: 3033, mode: `MaxEncodedLen`)
- /// Storage: `Staking::Validators` (r:11 w:0)
- /// Proof: `Staking::Validators` (`max_values`: None, `max_size`: Some(45), added: 2520, mode: `MaxEncodedLen`)
- /// Storage: `Staking::CounterForValidators` (r:1 w:0)
- /// Proof: `Staking::CounterForValidators` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ValidatorCount` (r:1 w:0)
- /// Proof: `Staking::ValidatorCount` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `Staking::MinimumValidatorCount` (r:1 w:0)
- /// Proof: `Staking::MinimumValidatorCount` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `Staking::CurrentEra` (r:1 w:1)
- /// Proof: `Staking::CurrentEra` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ErasValidatorPrefs` (r:0 w:10)
- /// Proof: `Staking::ErasValidatorPrefs` (`max_values`: None, `max_size`: Some(57), added: 2532, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ErasStakersPaged` (r:0 w:20)
- /// Proof: `Staking::ErasStakersPaged` (`max_values`: None, `max_size`: None, mode: `Measured`)
- /// Storage: `Staking::ErasStakersOverview` (r:0 w:10)
- /// Proof: `Staking::ErasStakersOverview` (`max_values`: None, `max_size`: Some(92), added: 2567, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ErasTotalStake` (r:0 w:1)
- /// Proof: `Staking::ErasTotalStake` (`max_values`: None, `max_size`: Some(28), added: 2503, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ErasStartSessionIndex` (r:0 w:1)
- /// Proof: `Staking::ErasStartSessionIndex` (`max_values`: None, `max_size`: Some(16), added: 2491, mode: `MaxEncodedLen`)
- /// Storage: `Staking::MinimumActiveStake` (r:0 w:1)
- /// Proof: `Staking::MinimumActiveStake` (`max_values`: Some(1), `max_size`: Some(16), added: 511, mode: `MaxEncodedLen`)
- /// The range of component `v` is `[1, 10]`.
- /// The range of component `n` is `[0, 100]`.
- fn new_era(v: u32, n: u32, ) -> Weight {
- // Proof Size summary in bytes:
- // Measured: `0 + n * (716 ±0) + v * (3594 ±0)`
- // Estimated: `456136 + n * (3566 ±4) + v * (3566 ±40)`
- // Minimum execution time: 654_756_000 picoseconds.
- Weight::from_parts(658_861_000, 0)
- .saturating_add(Weight::from_parts(0, 456136))
- // Standard Error: 2_078_102
- .saturating_add(Weight::from_parts(67_775_668, 0).saturating_mul(v.into()))
- // Standard Error: 207_071
- .saturating_add(Weight::from_parts(22_624_711, 0).saturating_mul(n.into()))
- .saturating_add(T::DbWeight::get().reads(184))
- .saturating_add(T::DbWeight::get().reads((5_u64).saturating_mul(v.into())))
- .saturating_add(T::DbWeight::get().reads((4_u64).saturating_mul(n.into())))
- .saturating_add(T::DbWeight::get().writes(8))
- .saturating_add(T::DbWeight::get().writes((3_u64).saturating_mul(v.into())))
- .saturating_add(Weight::from_parts(0, 3566).saturating_mul(n.into()))
- .saturating_add(Weight::from_parts(0, 3566).saturating_mul(v.into()))
- }
- /// Storage: `VoterList::CounterForListNodes` (r:1 w:0)
- /// Proof: `VoterList::CounterForListNodes` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `VoterList::ListBags` (r:178 w:0)
- /// Proof: `VoterList::ListBags` (`max_values`: None, `max_size`: Some(82), added: 2557, mode: `MaxEncodedLen`)
/// Storage: `VoterList::ListNodes` (r:2000 w:0)
/// Proof: `VoterList::ListNodes` (`max_values`: None, `max_size`: Some(154), added: 2629, mode: `MaxEncodedLen`)
/// Storage: `Staking::Bonded` (r:2000 w:0)
diff --git a/prdoc/pr_6034.prdoc b/prdoc/pr_6034.prdoc
new file mode 100644
index 00000000000..e6ecd8aae5c
--- /dev/null
+++ b/prdoc/pr_6034.prdoc
@@ -0,0 +1,25 @@
+title: Adds multi-block election types and refactors current single logic to support it
+
+doc:
+ - audience: Runtime Dev
+ description: |
+ This PR adds election types and structs required to run a multi-block election. In addition,
+ it modifies EPM, staking pallet and all dependent pallets and logic to use the multi-block types.
+
+crates:
+ - name: frame-election-provider-support
+ bump: major
+ - name: pallet-election-provider-multi-phase
+ bump: major
+ - name: pallet-staking
+ bump: major
+ - name: pallet-fast-unstake
+ bump: minor
+ - name: pallet-delegated-staking
+ bump: minor
+ - name: sp-npos-elections
+ bump: major
+ - name: sp-staking
+ bump: major
+ - name: pallet-bags-list-remote-tests
+ bump: minor
diff --git a/prdoc/pr_6689.prdoc b/prdoc/pr_6689.prdoc
index 2cbb49cd7dd..72e935e2e98 100644
--- a/prdoc/pr_6689.prdoc
+++ b/prdoc/pr_6689.prdoc
@@ -1,13 +1,12 @@
title: '[pallet-revive] Update gas encoding'
doc:
- audience: Runtime Dev
- description: |-
+ description: |
Update the current approach to attach the `ref_time`, `pov` and `deposit` parameters to an Ethereum transaction.
-Previously, these three parameters were passed along with the signed payload, and the fees resulting from gas × gas_price were checked to ensure they matched the actual fees paid by the user for the extrinsic
-
+ Previously, these three parameters were passed along with the signed payload, and the fees resulting from gas × gas_price were checked to ensure they matched the actual fees paid by the user for the extrinsic
This approach unfortunately can be attacked. A malicious actor could force such a transaction to fail by injecting low values for some of these extra parameters as they are not part of the signed payload.
-
The new approach encodes these 3 extra parameters in the lower digits of the transaction gas, using the log2 of the actual values to encode each components on 2 digits
+
crates:
- name: pallet-revive-eth-rpc
bump: minor
diff --git a/prdoc/pr_7042.prdoc b/prdoc/pr_7042.prdoc
index 00fb34c6af4..1c585f9dff0 100644
--- a/prdoc/pr_7042.prdoc
+++ b/prdoc/pr_7042.prdoc
@@ -1,4 +1,4 @@
-title: `networking::TransactionPool` should accept `Arc`
+title: networking::TransactionPool should accept Arc
doc:
- audience: Node Dev
description: The `sc_network_transactions::config::TransactionPool` trait now returns an `Arc` for transactions.
@@ -6,4 +6,4 @@ crates:
- name: sc-network-transactions
bump: minor
- name: sc-service
- bump: minor
\ No newline at end of file
+ bump: minor
diff --git a/prdoc/pr_7282.prdoc b/prdoc/pr_7282.prdoc
new file mode 100644
index 00000000000..3d12a8b184a
--- /dev/null
+++ b/prdoc/pr_7282.prdoc
@@ -0,0 +1,72 @@
+title: AHM Multi-block staking election pallet
+doc:
+- audience: Runtime Dev
+ description: |
+ ## Multi Block Election Pallet
+
+ This PR adds the first iteration of the multi-block staking pallet.
+
+ From this point onwards, the staking and its election provider pallets are being customized to work in AssetHub. While usage in solo-chains is still possible, it is not longer the main focus of this pallet. For a safer usage, please fork and user an older version of this pallet.
+crates:
+- name: pallet-election-provider-multi-block
+ bump: major
+- name: frame-election-provider-support
+ bump: major
+- name: frame-election-provider-solution-type
+ bump: major
+- name: sp-npos-elections
+ bump: major
+- name: sp-staking
+ bump: major
+- name: pallet-staking
+ bump: major
+- name: pallet-election-provider-multi-phase
+ bump: major
+- name: westend-runtime
+ bump: major
+- name: pallet-delegated-staking
+ bump: major
+- name: pallet-fast-unstake
+ bump: major
+- name: pallet-session-benchmarking
+ bump: major
+- name: sc-consensus-grandpa
+ bump: major
+- name: pallet-babe
+ bump: major
+- name: pallet-beefy
+ bump: major
+- name: pallet-grandpa
+ bump: major
+- name: pallet-nomination-pools
+ bump: major
+- name: pallet-root-offences
+ bump: major
+- name: pallet-nomination-pools-benchmarking
+ bump: major
+- name: pallet-offences-benchmarking
+ bump: major
+- name: cumulus-pov-validator
+ bump: major
+- name: polkadot-sdk
+ bump: major
+- name: asset-hub-rococo-runtime
+ bump: major
+- name: pallet-bags-list
+ bump: major
+- name: frame-benchmarking
+ bump: major
+- name: frame-support-procedural
+ bump: major
+- name: frame-support
+ bump: major
+- name: frame-benchmarking-cli
+ bump: major
+- name: polkadot-runtime-common
+ bump: major
+- name: pallet-elections-phragmen
+ bump: major
+- name: pallet-election-provider-support-benchmarking
+ bump: major
+- name: pallet-session
+ bump: major
diff --git a/substrate/.maintain/frame-umbrella-weight-template.hbs b/substrate/.maintain/frame-umbrella-weight-template.hbs
index c99758c41d9..6985944b0a3 100644
--- a/substrate/.maintain/frame-umbrella-weight-template.hbs
+++ b/substrate/.maintain/frame-umbrella-weight-template.hbs
@@ -1,3 +1,20 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
{{header}}
//! Autogenerated weights for `{{pallet}}`
//!
diff --git a/substrate/.maintain/frame-weight-template.hbs b/substrate/.maintain/frame-weight-template.hbs
index 624fc57aa32..c2a22200dc9 100644
--- a/substrate/.maintain/frame-weight-template.hbs
+++ b/substrate/.maintain/frame-weight-template.hbs
@@ -1,3 +1,20 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
{{header}}
//! Autogenerated weights for `{{pallet}}`
//!
diff --git a/substrate/bin/node/cli/Cargo.toml b/substrate/bin/node/cli/Cargo.toml
index 7b355074823..46ccff34bf7 100644
--- a/substrate/bin/node/cli/Cargo.toml
+++ b/substrate/bin/node/cli/Cargo.toml
@@ -182,6 +182,9 @@ try-runtime = [
"polkadot-sdk/try-runtime",
"substrate-cli-test-utils/try-runtime",
]
+staking-playground = [
+ "kitchensink-runtime/staking-playground",
+]
[[bench]]
name = "transaction_pool"
diff --git a/substrate/bin/node/cli/src/chain_spec.rs b/substrate/bin/node/cli/src/chain_spec.rs
index 038aa2f6092..af08ca7f609 100644
--- a/substrate/bin/node/cli/src/chain_spec.rs
+++ b/substrate/bin/node/cli/src/chain_spec.rs
@@ -347,6 +347,29 @@ pub fn testnet_genesis(
) -> serde_json::Value {
let (initial_authorities, endowed_accounts, num_endowed_accounts, stakers) =
configure_accounts(initial_authorities, initial_nominators, endowed_accounts, STASH);
+ const MAX_COLLECTIVE_SIZE: usize = 50;
+
+ let dev_stakers = if cfg!(feature = "staking-playground") {
+ let random_validators =
+ std::option_env!("VALIDATORS").map(|s| s.parse::<u32>().unwrap()).unwrap_or(100);
+ let random_nominators = std::option_env!("NOMINATORS")
+ .map(|s| s.parse::<u32>().unwrap())
+ .unwrap_or(3000);
+ Some((random_validators, random_nominators))
+ } else {
+ None
+ };
+
+ let validator_count = if cfg!(feature = "staking-playground") {
+ std::option_env!("VALIDATOR_COUNT")
+ .map(|v| v.parse::<u32>().unwrap())
+ .unwrap_or(100)
+ } else {
+ initial_authorities.len() as u32
+ };
+
+ let minimum_validator_count =
+ if cfg!(feature = "staking-playground") { 10 } else { initial_authorities.len() as u32 };
serde_json::json!({
"balances": {
@@ -372,16 +395,17 @@ pub fn testnet_genesis(
.collect::<Vec<_>>(),
},
"staking": {
- "validatorCount": initial_authorities.len() as u32,
- "minimumValidatorCount": initial_authorities.len() as u32,
+ "validatorCount": validator_count,
+ "minimumValidatorCount": minimum_validator_count,
"invulnerables": initial_authorities.iter().map(|x| x.0.clone()).collect::<Vec<_>>(),
"slashRewardFraction": Perbill::from_percent(10),
"stakers": stakers.clone(),
+ "devStakers": dev_stakers
},
"elections": {
"members": endowed_accounts
.iter()
- .take((num_endowed_accounts + 1) / 2)
+ .take(((num_endowed_accounts + 1) / 2).min(MAX_COLLECTIVE_SIZE))
.cloned()
.map(|member| (member, STASH))
.collect::<Vec<_>>(),
@@ -389,7 +413,7 @@ pub fn testnet_genesis(
"technicalCommittee": {
"members": endowed_accounts
.iter()
- .take((num_endowed_accounts + 1) / 2)
+ .take(((num_endowed_accounts + 1) / 2).min(MAX_COLLECTIVE_SIZE))
.cloned()
.collect::<Vec<_>>(),
},
diff --git a/substrate/bin/node/cli/tests/res/default_genesis_config.json b/substrate/bin/node/cli/tests/res/default_genesis_config.json
index 8ad2428f785..4d846252021 100644
--- a/substrate/bin/node/cli/tests/res/default_genesis_config.json
+++ b/substrate/bin/node/cli/tests/res/default_genesis_config.json
@@ -22,6 +22,7 @@
"multiplier": "1000000000000000000"
},
"staking": {
+ "devStakers": null,
"validatorCount": 0,
"minimumValidatorCount": 0,
"invulnerables": [],
diff --git a/substrate/bin/node/runtime/Cargo.toml b/substrate/bin/node/runtime/Cargo.toml
index 6d377cc92cc..07c97f8c271 100644
--- a/substrate/bin/node/runtime/Cargo.toml
+++ b/substrate/bin/node/runtime/Cargo.toml
@@ -74,3 +74,9 @@ experimental = [
"pallet-example-tasks/experimental",
]
metadata-hash = ["substrate-wasm-builder/metadata-hash"]
+# Test temp feature to allow this chain to be used for swift testing of staking elections. should
+# only be run by --dev chain. It will create a large staking election process as per the constants
+# in `chain_spec.rs`, but `Alice` will be the only authority that is communicated to the node and
+# ergo block production works fine with --dev and is independent of staking election. See ` pub
+# struct AliceAsOnlyValidator`.
+staking-playground = []
diff --git a/substrate/bin/node/runtime/src/constants.rs b/substrate/bin/node/runtime/src/constants.rs
index d13dca48d1f..576ed540180 100644
--- a/substrate/bin/node/runtime/src/constants.rs
+++ b/substrate/bin/node/runtime/src/constants.rs
@@ -63,7 +63,8 @@ pub mod time {
// NOTE: Currently it is not possible to change the epoch duration after the chain has started.
// Attempting to do so will brick block production.
- pub const EPOCH_DURATION_IN_BLOCKS: BlockNumber = 10 * MINUTES;
+ pub const EPOCH_DURATION_IN_BLOCKS: BlockNumber = 20 * MINUTES;
+
pub const EPOCH_DURATION_IN_SLOTS: u64 = {
const SLOT_FILL_RATE: f64 = MILLISECS_PER_BLOCK as f64 / SLOT_DURATION as f64;
diff --git a/substrate/bin/node/runtime/src/lib.rs b/substrate/bin/node/runtime/src/lib.rs
index 3cbc8aa7115..d3dd08369e7 100644
--- a/substrate/bin/node/runtime/src/lib.rs
+++ b/substrate/bin/node/runtime/src/lib.rs
@@ -673,16 +673,119 @@ impl_opaque_keys! {
}
}
+#[cfg(feature = "staking-playground")]
+pub mod staking_playground {
+ use pallet_staking::Exposure;
+
+ use super::*;
+
+ /// An adapter to make the chain work with --dev only, even though it is running a large staking
+ /// election.
+ ///
+ /// It will ignore the staking election and just set the validator set to alice.
+ ///
+ /// Needs to be fed into `type SessionManager`.
+ pub struct AliceAsOnlyValidator;
+ impl pallet_session::SessionManager<AccountId> for AliceAsOnlyValidator {
+ fn end_session(end_index: sp_staking::SessionIndex) {
+ <Staking as pallet_session::SessionManager<AccountId>>::end_session(end_index)
+ }
+
+ fn new_session(new_index: sp_staking::SessionIndex) -> Option<Vec<AccountId>> {
+ <Staking as pallet_session::SessionManager<AccountId>>::new_session(new_index).map(
+ |_ignored_validators| {
+ vec![sp_keyring::Sr25519Keyring::AliceStash.to_account_id().into()]
+ },
+ )
+ }
+
+ fn new_session_genesis(new_index: sp_staking::SessionIndex) -> Option<Vec<AccountId>> {
+ <Staking as pallet_session::SessionManager<AccountId>>::new_session_genesis(new_index)
+ .map(|_ignored_validators| {
+ vec![sp_keyring::Sr25519Keyring::AliceStash.to_account_id().into()]
+ })
+ }
+
+ fn start_session(start_index: sp_staking::SessionIndex) {
+ <Staking as pallet_session::SessionManager<AccountId>>::start_session(start_index)
+ }
+ }
+
+ impl pallet_session::historical::SessionManager<AccountId, Exposure<AccountId, Balance>>
+ for AliceAsOnlyValidator
+ {
+ fn end_session(end_index: sp_staking::SessionIndex) {
+ <Staking as pallet_session::historical::SessionManager<
+ AccountId,
+ Exposure<AccountId, Balance>,
+ >>::end_session(end_index)
+ }
+
+ fn new_session(
+ new_index: sp_staking::SessionIndex,
+ ) -> Option<Vec<(AccountId, Exposure<AccountId, Balance>)>> {
+ <Staking as pallet_session::historical::SessionManager<
+ AccountId,
+ Exposure<AccountId, Balance>,
+ >>::new_session(new_index)
+ .map(|_ignored| {
+ // construct a fake exposure for alice.
+ vec![(
+ sp_keyring::Sr25519Keyring::AliceStash.to_account_id().into(),
+ pallet_staking::Exposure {
+ total: 1_000_000_000,
+ own: 1_000_000_000,
+ others: vec![],
+ },
+ )]
+ })
+ }
+
+ fn new_session_genesis(
+ new_index: sp_staking::SessionIndex,
+ ) -> Option<Vec<(AccountId, Exposure<AccountId, Balance>)>> {
+ <Staking as pallet_session::historical::SessionManager<
+ AccountId,
+ Exposure<AccountId, Balance>,
+ >>::new_session_genesis(new_index)
+ .map(|_ignored| {
+ // construct a fake exposure for alice.
+ vec![(
+ sp_keyring::Sr25519Keyring::AliceStash.to_account_id().into(),
+ pallet_staking::Exposure {
+ total: 1_000_000_000,
+ own: 1_000_000_000,
+ others: vec![],
+ },
+ )]
+ })
+ }
+
+ fn start_session(start_index: sp_staking::SessionIndex) {
+ <Staking as pallet_session::historical::SessionManager<
+ AccountId,
+ Exposure<AccountId, Balance>,
+ >>::start_session(start_index)
+ }
+ }
+}
+
impl pallet_session::Config for Runtime {
type RuntimeEvent = RuntimeEvent;
type ValidatorId = <Self as frame_system::Config>::AccountId;
type ValidatorIdOf = pallet_staking::StashOf<Self>;
type ShouldEndSession = Babe;
type NextSessionRotation = Babe;
- type SessionManager = pallet_session::historical::NoteHistoricalRoot<Self, Staking>;
type SessionHandler = <SessionKeys as OpaqueKeys>::KeyTypeIdProviders;
type Keys = SessionKeys;
type WeightInfo = pallet_session::weights::SubstrateWeight<Runtime>;
+ #[cfg(not(feature = "staking-playground"))]
+ type SessionManager = pallet_session::historical::NoteHistoricalRoot<Self, Staking>;
+ #[cfg(feature = "staking-playground")]
+ type SessionManager = pallet_session::historical::NoteHistoricalRoot<
+ Self,
+ staking_playground::AliceAsOnlyValidator,
+ >;
}
impl pallet_session::historical::Config for Runtime {
@@ -701,8 +804,16 @@ pallet_staking_reward_curve::build! {
);
}
+#[cfg(not(feature = "staking-playground"))]
parameter_types! {
pub const SessionsPerEra: sp_staking::SessionIndex = 6;
+}
+#[cfg(feature = "staking-playground")]
+parameter_types! {
+ pub const SessionsPerEra: sp_staking::SessionIndex = 2;
+}
+
+parameter_types! {
pub const BondingDuration: sp_staking::EraIndex = 24 * 28;
pub const SlashDeferDuration: sp_staking::EraIndex = 24 * 7; // 1/4 the bonding duration.
pub const RewardCurve: &'static PiecewiseLinear<'static> = &REWARD_CURVE;
@@ -717,10 +828,35 @@ const MAX_QUOTA_NOMINATIONS: u32 = 16;
pub struct StakingBenchmarkingConfig;
impl pallet_staking::BenchmarkingConfig for StakingBenchmarkingConfig {
- type MaxNominators = ConstU32<1000>;
+ type MaxNominators = ConstU32<5000>;
type MaxValidators = ConstU32<1000>;
}
+use frame_election_provider_support::{BoundedSupportsOf, ElectionProvider, PageIndex};
+pub struct MultiElectionProvider;
+impl ElectionProvider for MultiElectionProvider {
+ type AccountId = <MultiBlock as ElectionProvider>::AccountId;
+ type BlockNumber = <MultiBlock as ElectionProvider>::BlockNumber;
+ type DataProvider = <MultiBlock as ElectionProvider>::DataProvider;
+ type Error = <MultiBlock as ElectionProvider>::Error;
+ type Pages = <MultiBlock as ElectionProvider>::Pages;
+ type MaxBackersPerWinner = <MultiBlock as ElectionProvider>::MaxBackersPerWinner;
+ type MaxWinnersPerPage = <MultiBlock as ElectionProvider>::MaxWinnersPerPage;
+
+ fn elect(page: PageIndex) -> Result<BoundedSupportsOf<Self>, Self::Error> {
+ if page == 0 && !cfg!(feature = "runtime-benchmarks") {
+ // TODO: later on, we can even compare the results of the multi-page and multi-block
+ // election in here.
+ let _ = ElectionProviderMultiPhase::elect(page);
+ }
+ MultiBlock::elect(page)
+ }
+
+ fn ongoing() -> bool {
+ MultiBlock::ongoing()
+ }
+}
+
impl pallet_staking::Config for Runtime {
type OldCurrency = Balances;
type Currency = Balances;
@@ -743,8 +879,9 @@ impl pallet_staking::Config for Runtime {
type SessionInterface = Self;
type EraPayout = pallet_staking::ConvertCurve<RewardCurve>;
type NextNewSession = Session;
- type MaxExposurePageSize = ConstU32<256>;
- type ElectionProvider = ElectionProviderMultiPhase;
+ type MaxExposurePageSize = multi_block_impls::MaxExposurePageSize;
+ type MaxValidatorSet = multi_block_impls::MaxWinnersPerPage;
+ type ElectionProvider = MultiElectionProvider;
type GenesisElectionProvider = onchain::OnChainExecution<OnChainSeqPhragmen>;
type VoterList = VoterList;
type NominationsQuota = pallet_staking::FixedNominationsQuota<MAX_QUOTA_NOMINATIONS>;
@@ -757,6 +894,8 @@ impl pallet_staking::Config for Runtime {
type WeightInfo = pallet_staking::weights::SubstrateWeight<Runtime>;
type BenchmarkingConfig = StakingBenchmarkingConfig;
type DisablingStrategy = pallet_staking::UpToLimitWithReEnablingDisablingStrategy;
+ type MaxInvulnerables = ConstU32<20>;
+ type MaxDisabledValidators = ConstU32<100>;
}
impl pallet_fast_unstake::Config for Runtime {
@@ -770,10 +909,132 @@ impl pallet_fast_unstake::Config for Runtime {
type WeightInfo = ();
}
+frame_election_provider_support::generate_solution_type!(
+ #[compact]
+ pub struct NposSolution16::<
+ VoterIndex = u32,
+ TargetIndex = u16,
+ Accuracy = sp_runtime::PerU16,
+ MaxVoters = ConstU32<22500>,
+ >(16)
+);
+
+pub(crate) mod multi_block_impls {
+ use super::*;
+ use pallet_election_provider_multi_block as multi_block;
+ use pallet_election_provider_multi_phase as multi_phase;
+
+ frame_election_provider_support::generate_solution_type!(
+ #[compact]
+ pub struct MultiBlockSolution::<
+ VoterIndex = u16,
+ TargetIndex = u16,
+ Accuracy = sp_runtime::Percent,
+ MaxVoters = ConstU32<{22500 / Pages::get()}>,
+ >(16)
+ );
+
+ parameter_types! {
+ pub const Pages: u32 = 32;
+ // nominators snapshot size
+ pub VoterSnapshotPerBlock: u32 = 22500 / Pages::get();
+ // validator snapshot size
+ pub TargetSnapshotPerBlock: u32 = 1000;
+ pub SignedPhase: u32 = 3 * EPOCH_DURATION_IN_BLOCKS / 4;
+ // 2 signed solutions to be validate
+ pub SignedValidation: u32 = Pages::get() * 2;
+ pub UnsignedPhase: u32 = EPOCH_DURATION_IN_BLOCKS / 4;
+ pub MaxWinnersPerPage: u32 = 1000;
+ pub MaxBackersPerWinner: u32 = 128;
+ pub MaxExposurePageSize: u32 = 32;
+ }
+
+ impl multi_block::unsigned::miner::MinerConfig for Runtime {
+ type AccountId = AccountId;
+ type Hash = Hash;
+ type MaxBackersPerWinner = <Self as multi_block::verifier::Config>::MaxBackersPerWinner;
+ type MaxBackersPerWinnerFinal =
+ <Self as multi_block::verifier::Config>::MaxBackersPerWinnerFinal;
+ type MaxWinnersPerPage = <Self as multi_block::verifier::Config>::MaxWinnersPerPage;
+ type MaxVotesPerVoter =
+ <<Self as multi_block::Config>::DataProvider as ElectionDataProvider>::MaxVotesPerVoter;
+ type MaxLength = MinerMaxLength;
+ type Solver = <Runtime as multi_block::unsigned::Config>::OffchainSolver;
+ type Pages = Pages;
+ type Solution = MultiBlockSolution;
+ type VoterSnapshotPerBlock = <Runtime as multi_block::Config>::VoterSnapshotPerBlock;
+ type TargetSnapshotPerBlock = <Runtime as multi_block::Config>::TargetSnapshotPerBlock;
+ }
+
+ impl multi_block::Config for Runtime {
+ type AdminOrigin = EnsureRoot<AccountId>;
+ type RuntimeEvent = RuntimeEvent;
+ type DataProvider = Staking;
+ #[cfg(not(feature = "runtime-benchmarks"))]
+ type Fallback = multi_block::Continue<Self>;
+ #[cfg(feature = "runtime-benchmarks")]
+ type Fallback = onchain::OnChainExecution<OnChainSeqPhragmen>;
+ // prepare for election 5 blocks ahead of time
+ type Lookahead = ConstU32<5>;
+ // split election into 8 pages.
+ type Pages = Pages;
+ // allow 2 signed solutions to be verified.
+ type SignedValidationPhase = SignedValidation;
+ // TODO: sanity check that the length of all phases is within reason.
+ type SignedPhase = SignedPhase;
+ type UnsignedPhase = UnsignedPhase;
+ type TargetSnapshotPerBlock = TargetSnapshotPerBlock;
+ type VoterSnapshotPerBlock = VoterSnapshotPerBlock;
+ type Verifier = MultiBlockVerifier;
+ type MinerConfig = Self;
+ type WeightInfo = multi_block::weights::AllZeroWeights;
+ }
+
+ impl multi_block::verifier::Config for Runtime {
+ type MaxBackersPerWinner = MaxBackersPerWinner;
+ type MaxWinnersPerPage = MaxWinnersPerPage;
+ type MaxBackersPerWinnerFinal = ConstU32<{ u32::MAX }>;
+ type RuntimeEvent = RuntimeEvent;
+ type SolutionDataProvider = MultiBlockSigned;
+ type SolutionImprovementThreshold = ();
+ type WeightInfo = multi_block::weights::AllZeroWeights;
+ }
+
+ parameter_types! {
+ pub const BailoutGraceRatio: Perbill = Perbill::from_percent(50);
+ }
+
+ impl multi_block::signed::Config for Runtime {
+ type BailoutGraceRatio = BailoutGraceRatio;
+ // TODO: we need an increase factor for this pallet as well.
+ type DepositBase = SignedFixedDeposit;
+ type DepositPerPage = SignedDepositByte;
+ type MaxSubmissions = ConstU32<8>;
+ type RewardBase = SignedRewardBase;
+
+ type EstimateCallFee = TransactionPayment;
+ type Currency = Balances;
+
+ type RuntimeEvent = RuntimeEvent;
+ type RuntimeHoldReason = RuntimeHoldReason;
+ type WeightInfo = multi_block::weights::AllZeroWeights;
+ }
+
+ impl multi_block::unsigned::Config for Runtime {
+ type OffchainSolver = <Runtime as multi_phase::Config>::Solver;
+ // offchain usage of miner configs
+ type MinerTxPriority = <Runtime as multi_phase::Config>::MinerTxPriority;
+ // TODO: this needs to be an educated number: "estimate mining time per page * pages"
+ type OffchainRepeat = ConstU32<5>;
+
+ type WeightInfo = multi_block::weights::AllZeroWeights;
+ }
+}
+
parameter_types! {
- // phase durations. 1/4 of the last session for each.
- pub const SignedPhase: u32 = EPOCH_DURATION_IN_BLOCKS / 4;
- pub const UnsignedPhase: u32 = EPOCH_DURATION_IN_BLOCKS / 4;
+ // phase durations. 1/2 of the last session for each.
+ pub const SignedPhase: u32 = EPOCH_DURATION_IN_BLOCKS / 2;
+ pub const UnsignedPhase: u32 = EPOCH_DURATION_IN_BLOCKS / 2;
// signed config
pub const SignedRewardBase: Balance = 1 * DOLLARS;
@@ -794,29 +1055,15 @@ parameter_types! {
.get(DispatchClass::Normal);
}
-frame_election_provider_support::generate_solution_type!(
- #[compact]
- pub struct NposSolution16::<
- VoterIndex = u32,
- TargetIndex = u16,
- Accuracy = sp_runtime::PerU16,
- MaxVoters = MaxElectingVotersSolution,
- >(16)
-);
-
parameter_types! {
- // Note: the EPM in this runtime runs the election on-chain. The election bounds must be
- // carefully set so that an election round fits in one block.
+ /// Note: the EPM in this runtime runs the election on-chain. The election bounds must be
+ /// carefully set so that an election round fits in one block.
pub ElectionBoundsMultiPhase: ElectionBounds = ElectionBoundsBuilder::default()
.voters_count(10_000.into()).targets_count(1_500.into()).build();
pub ElectionBoundsOnChain: ElectionBounds = ElectionBoundsBuilder::default()
.voters_count(5_000.into()).targets_count(1_250.into()).build();
pub MaxNominations: u32 = <NposSolution16 as frame_election_provider_support::NposSolution>::LIMIT as u32;
- pub MaxElectingVotersSolution: u32 = 40_000;
- // The maximum winners that can be elected by the Election pallet which is equivalent to the
- // maximum active validators the staking pallet can have.
- pub MaxActiveValidators: u32 = 1000;
}
/// The numbers configured here could always be more than the the maximum limits of staking pallet
@@ -860,6 +1107,7 @@ impl Get<Option<BalancingConfig>> for OffchainRandomBalancing {
pub struct OnChainSeqPhragmen;
impl onchain::Config for OnChainSeqPhragmen {
+ type Sort = ConstBool<true>;
type System = Runtime;
type Solver = SequentialPhragmen<
AccountId,
@@ -867,8 +1115,10 @@ impl onchain::Config for OnChainSeqPhragmen {
>;
type DataProvider = <Runtime as pallet_election_provider_multi_phase::Config>::DataProvider;
type WeightInfo = frame_election_provider_support::weights::SubstrateWeight<Runtime>;
- type MaxWinners = <Runtime as pallet_election_provider_multi_phase::Config>::MaxWinners;
type Bounds = ElectionBoundsOnChain;
+ type MaxBackersPerWinner =
+ <Runtime as pallet_election_provider_multi_phase::Config>::MaxBackersPerWinner;
+ type MaxWinnersPerPage = multi_block_impls::MaxWinnersPerPage;
}
impl pallet_election_provider_multi_phase::MinerConfig for Runtime {
@@ -878,7 +1128,8 @@ impl pallet_election_provider_multi_phase::MinerConfig for Runtime {
type Solution = NposSolution16;
type MaxVotesPerVoter =
<<Self as pallet_election_provider_multi_phase::Config>::DataProvider as ElectionDataProvider>::MaxVotesPerVoter;
- type MaxWinners = MaxActiveValidators;
+ type MaxWinners = multi_block_impls::MaxWinnersPerPage;
+ type MaxBackersPerWinner = multi_block_impls::MaxBackersPerWinner;
// The unsigned submissions have to respect the weight of the submit_unsigned call, thus their
// weight estimate function is wired to this call's weight.
@@ -912,11 +1163,21 @@ impl pallet_election_provider_multi_phase::Config for Runtime {
type SlashHandler = (); // burn slashes
type RewardHandler = (); // rewards are minted from the void
type DataProvider = Staking;
+ #[cfg(not(feature = "runtime-benchmarks"))]
+ type Fallback = frame_election_provider_support::NoElection<(
+ AccountId,
+ BlockNumber,
+ Staking,
+ multi_block_impls::MaxWinnersPerPage,
+ multi_block_impls::MaxBackersPerWinner,
+ )>;
+ #[cfg(feature = "runtime-benchmarks")]
type Fallback = onchain::OnChainExecution<OnChainSeqPhragmen>;
type GovernanceFallback = onchain::OnChainExecution<OnChainSeqPhragmen>;
type Solver = SequentialPhragmen<AccountId, SolutionAccuracyOf<Self>, OffchainRandomBalancing>;
type ForceOrigin = EnsureRootOrHalfCouncil;
- type MaxWinners = MaxActiveValidators;
+ type MaxWinners = multi_block_impls::MaxWinnersPerPage;
+ type MaxBackersPerWinner = multi_block_impls::MaxBackersPerWinner;
type ElectionBounds = ElectionBoundsMultiPhase;
type BenchmarkingConfig = ElectionProviderBenchmarkConfig;
type WeightInfo = pallet_election_provider_multi_phase::weights::SubstrateWeight<Self>;
@@ -1232,8 +1493,8 @@ parameter_types! {
pub const DesiredMembers: u32 = 13;
pub const DesiredRunnersUp: u32 = 7;
pub const MaxVotesPerVoter: u32 = 16;
- pub const MaxVoters: u32 = 512;
- pub const MaxCandidates: u32 = 64;
+ pub const MaxVoters: u32 = 256;
+ pub const MaxCandidates: u32 = 128;
pub const ElectionsPhragmenPalletId: LockIdentifier = *b"phrelect";
}
@@ -1513,7 +1774,7 @@ parameter_types! {
pub const ImOnlineUnsignedPriority: TransactionPriority = TransactionPriority::max_value();
/// We prioritize im-online heartbeats over election solution submission.
pub const StakingUnsignedPriority: TransactionPriority = TransactionPriority::max_value() / 2;
- pub const MaxAuthorities: u32 = 100;
+ pub const MaxAuthorities: u32 = 1000;
pub const MaxKeys: u32 = 10_000;
pub const MaxPeerInHeartbeats: u32 = 10_000;
}
@@ -2728,6 +2989,16 @@ mod runtime {
#[runtime::pallet_index(84)]
pub type AssetsFreezer = pallet_assets_freezer::Pallet<Runtime, Instance1>;
+
+ // Order is important!
+ #[runtime::pallet_index(85)]
+ pub type MultiBlock = pallet_election_provider_multi_block::Pallet<Runtime>;
+ #[runtime::pallet_index(86)]
+ pub type MultiBlockVerifier = pallet_election_provider_multi_block::verifier::Pallet<Runtime>;
+ #[runtime::pallet_index(87)]
+ pub type MultiBlockUnsigned = pallet_election_provider_multi_block::unsigned::Pallet<Runtime>;
+ #[runtime::pallet_index(88)]
+ pub type MultiBlockSigned = pallet_election_provider_multi_block::signed::Pallet<Runtime>;
}
impl TryFrom<RuntimeCall> for pallet_revive::Call<Runtime> {
@@ -2942,6 +3213,10 @@ mod benches {
[pallet_asset_conversion_tx_payment, AssetConversionTxPayment]
[pallet_transaction_payment, TransactionPayment]
[pallet_election_provider_multi_phase, ElectionProviderMultiPhase]
+ [pallet_election_provider_multi_block, MultiBlock]
+ [pallet_election_provider_multi_block::verifier, MultiBlockVerifier]
+ [pallet_election_provider_multi_block::unsigned, MultiBlockUnsigned]
+ [pallet_election_provider_multi_block::signed, MultiBlockSigned]
[pallet_election_provider_support_benchmarking, EPSBench::<Runtime>]
[pallet_elections_phragmen, Elections]
[pallet_fast_unstake, FastUnstake]
diff --git a/substrate/bin/node/testing/src/genesis.rs b/substrate/bin/node/testing/src/genesis.rs
index 624b00b4d6c..aaa19e15d07 100644
--- a/substrate/bin/node/testing/src/genesis.rs
+++ b/substrate/bin/node/testing/src/genesis.rs
@@ -24,7 +24,7 @@ use kitchensink_runtime::{
RuntimeGenesisConfig, SessionConfig, SocietyConfig, StakerStatus, StakingConfig,
};
use sp_keyring::Ed25519Keyring;
-use sp_runtime::Perbill;
+use sp_runtime::{BoundedVec, Perbill};
/// Create genesis runtime configuration for tests.
pub fn config() -> RuntimeGenesisConfig {
@@ -65,7 +65,8 @@ pub fn config_endowed(extra_endowed: Vec<AccountId>) -> RuntimeGenesisConfig {
validator_count: 3,
minimum_validator_count: 0,
slash_reward_fraction: Perbill::from_percent(10),
- invulnerables: vec![alice(), bob(), charlie()],
+ invulnerables: BoundedVec::try_from(vec![alice(), bob(), charlie()])
+ .expect("Too many invulnerable validators: upper limit is MaxInvulnerables from pallet staking config"),
..Default::default()
},
society: SocietyConfig { pot: 0 },
diff --git a/substrate/frame/babe/src/mock.rs b/substrate/frame/babe/src/mock.rs
index 6f9f54cc7ef..1e4f51d5143 100644
--- a/substrate/frame/babe/src/mock.rs
+++ b/substrate/frame/babe/src/mock.rs
@@ -31,7 +31,7 @@ use pallet_session::historical as pallet_session_historical;
use sp_consensus_babe::{AuthorityId, AuthorityPair, Randomness, Slot, VrfSignature};
use sp_core::{
crypto::{Pair, VrfSecret},
- U256,
+ ConstBool, U256,
};
use sp_io;
use sp_runtime::{
@@ -39,7 +39,7 @@ use sp_runtime::{
impl_opaque_keys,
testing::{Digest, DigestItem, Header, TestXt},
traits::{Header as _, OpaqueKeys},
- BuildStorage, Perbill,
+ BoundedVec, BuildStorage, Perbill,
};
use sp_staking::{EraIndex, SessionIndex};
@@ -151,7 +151,9 @@ impl onchain::Config for OnChainSeqPhragmen {
type Solver = SequentialPhragmen<DummyValidatorId, Perbill>;
type DataProvider = Staking;
type WeightInfo = ();
- type MaxWinners = ConstU32<100>;
+ type MaxWinnersPerPage = ConstU32<100>;
+ type MaxBackersPerWinner = ConstU32<100>;
+ type Sort = ConstBool<true>;
type Bounds = ElectionsBounds;
}
@@ -343,7 +345,7 @@ pub fn new_test_ext_raw_authorities(authorities: Vec<AuthorityId>) -> sp_io::Tes
validator_count: 8,
force_era: pallet_staking::Forcing::ForceNew,
minimum_validator_count: 0,
- invulnerables: vec![],
+ invulnerables: BoundedVec::new(),
..Default::default()
};
diff --git a/substrate/frame/bags-list/remote-tests/src/snapshot.rs b/substrate/frame/bags-list/remote-tests/src/snapshot.rs
index 5f999aa0b8b..f8ba7b8d024 100644
--- a/substrate/frame/bags-list/remote-tests/src/snapshot.rs
+++ b/substrate/frame/bags-list/remote-tests/src/snapshot.rs
@@ -22,7 +22,10 @@ use frame_election_provider_support::{
};
use frame_support::traits::PalletInfoAccess;
use remote_externalities::{Builder, Mode, OnlineConfig};
-use sp_runtime::{traits::Block as BlockT, DeserializeOwned};
+use sp_runtime::{
+ traits::{Block as BlockT, Zero},
+ DeserializeOwned,
+};
/// Execute create a snapshot from pallet-staking.
pub async fn execute<Runtime, Block>(voter_limit: Option<usize>, currency_unit: u64, ws_url: String)
@@ -70,8 +73,9 @@ where
Some(v) => DataProviderBounds { count: Some(CountBound(v as u32)), size: None },
};
+ // single page voter snapshot, thus page index == 0.
let voters =
- <pallet_staking::Pallet<Runtime> as ElectionDataProvider>::electing_voters(bounds)
+ <pallet_staking::Pallet<Runtime> as ElectionDataProvider>::electing_voters(bounds, Zero::zero())
.unwrap();
let mut voters_nominator_only = voters
diff --git a/substrate/frame/bags-list/src/benchmarks.rs b/substrate/frame/bags-list/src/benchmarks.rs
index 55f4c24835e..7db4c4bb359 100644
--- a/substrate/frame/bags-list/src/benchmarks.rs
+++ b/substrate/frame/bags-list/src/benchmarks.rs
@@ -29,6 +29,125 @@ use frame_system::RawOrigin as SystemOrigin;
use sp_runtime::traits::One;
benchmarks_instance_pallet! {
+ // iteration of any number of items should only touch that many nodes and bags.
+ #[extra]
+ iter {
+ let n = 100;
+
+ // clear any pre-existing storage.
+ List::<T, _>::unsafe_clear();
+
+ // add n nodes, half to first bag and half to second bag.
+ let bag_thresh = T::BagThresholds::get()[0];
+ let second_bag_thresh = T::BagThresholds::get()[1];
+
+
+ for i in 0..n/2 {
+ let node: T::AccountId = account("node", i, 0);
+ assert_ok!(List::<T, _>::insert(node.clone(), bag_thresh - One::one()));
+ }
+ for i in 0..n/2 {
+ let node: T::AccountId = account("node", i, 1);
+ assert_ok!(List::<T, _>::insert(node.clone(), bag_thresh + One::one()));
+ }
+ assert_eq!(
+ List::<T, _>::get_bags().into_iter().map(|(bag, nodes)| (bag, nodes.len())).collect::<Vec<_>>(),
+ vec![
+ (bag_thresh, (n / 2) as usize),
+ (second_bag_thresh, (n / 2) as usize),
+ ]
+ );
+ }: {
+ let voters = List::<T, _>::iter();
+ let len = voters.collect::<Vec<_>>().len();
+ assert!(len as u32 == n, "len is {}, expected {}", len, n);
+ }
+
+ // iteration of any number of items should only touch that many nodes and bags.
+ #[extra]
+ iter_take {
+ let n = 100;
+
+ // clear any pre-existing storage.
+ List::<T, _>::unsafe_clear();
+
+ // add n nodes, half to first bag and half to second bag.
+ let bag_thresh = T::BagThresholds::get()[0];
+ let second_bag_thresh = T::BagThresholds::get()[1];
+
+
+ for i in 0..n/2 {
+ let node: T::AccountId = account("node", i, 0);
+ assert_ok!(List::<T, _>::insert(node.clone(), bag_thresh - One::one()));
+ }
+ for i in 0..n/2 {
+ let node: T::AccountId = account("node", i, 1);
+ assert_ok!(List::<T, _>::insert(node.clone(), bag_thresh + One::one()));
+ }
+ assert_eq!(
+ List::<T, _>::get_bags().into_iter().map(|(bag, nodes)| (bag, nodes.len())).collect::<Vec<_>>(),
+ vec![
+ (bag_thresh, (n / 2) as usize),
+ (second_bag_thresh, (n / 2) as usize),
+ ]
+ );
+ }: {
+ // this should only go into one of the bags
+ let voters = List::<T, _>::iter().take(n as usize / 4 );
+ let len = voters.collect::<Vec<_>>().len();
+ assert!(len as u32 == n / 4, "len is {}, expected {}", len, n / 4);
+ }
+
+ #[extra]
+ iter_from {
+ let n = 100;
+
+ // clear any pre-existing storage.
+ List::<T, _>::unsafe_clear();
+
+ // populate the first 4 bags with n/4 nodes each
+ let bag_thresh = T::BagThresholds::get()[0];
+
+ for i in 0..n/4 {
+ let node: T::AccountId = account("node", i, 0);
+ assert_ok!(List::<T, _>::insert(node.clone(), bag_thresh - One::one()));
+ }
+ for i in 0..n/4 {
+ let node: T::AccountId = account("node", i, 1);
+ assert_ok!(List::<T, _>::insert(node.clone(), bag_thresh + One::one()));
+ }
+
+ let bag_thresh = T::BagThresholds::get()[2];
+
+ for i in 0..n/4 {
+ let node: T::AccountId = account("node", i, 2);
+ assert_ok!(List::<T, _>::insert(node.clone(), bag_thresh - One::one()));
+ }
+
+ for i in 0..n/4 {
+ let node: T::AccountId = account("node", i, 3);
+ assert_ok!(List::<T, _>::insert(node.clone(), bag_thresh + One::one()));
+ }
+
+ assert_eq!(
+ List::<T, _>::get_bags().into_iter().map(|(bag, nodes)| (bag, nodes.len())).collect::<Vec<_>>(),
+ vec![
+ (T::BagThresholds::get()[0], (n / 4) as usize),
+ (T::BagThresholds::get()[1], (n / 4) as usize),
+ (T::BagThresholds::get()[2], (n / 4) as usize),
+ (T::BagThresholds::get()[3], (n / 4) as usize),
+ ]
+ );
+
+ // iter from someone in the 3rd bag, so this should touch ~75 nodes and 3 bags
+ let from: T::AccountId = account("node", 0, 2);
+ }: {
+ let voters = List::<T, _>::iter_from(&from).unwrap();
+ let len = voters.collect::<Vec<_>>().len();
+ assert!(len as u32 == 74, "len is {}, expected {}", len, 74);
+ }
+
+
rebag_non_terminal {
// An expensive case for rebag-ing (rebag a non-terminal node):
//
diff --git a/substrate/frame/bags-list/src/lib.rs b/substrate/frame/bags-list/src/lib.rs
index ee36a3a3ebd..ae65cc0783c 100644
--- a/substrate/frame/bags-list/src/lib.rs
+++ b/substrate/frame/bags-list/src/lib.rs
@@ -148,7 +148,7 @@ pub use list::{notional_bag_for, Bag, List, ListError, Node};
pub use pallet::*;
pub use weights::WeightInfo;
-pub(crate) const LOG_TARGET: &str = "runtime::bags_list";
+pub(crate) const LOG_TARGET: &str = "runtime::bags-list";
// syntactic sugar for logging.
#[macro_export]
diff --git a/substrate/frame/bags-list/src/list/mod.rs b/substrate/frame/bags-list/src/list/mod.rs
index 696b64d40e9..6b0d1afcd8b 100644
--- a/substrate/frame/bags-list/src/list/mod.rs
+++ b/substrate/frame/bags-list/src/list/mod.rs
@@ -245,7 +245,7 @@ impl<T: Config<I>, I: 'static> List<T, I> {
/// Iterate over all nodes in all bags in the list.
///
/// Full iteration can be expensive; it's recommended to limit the number of items with
- /// `.take(n)`.
+ /// `.take(n)`, or call `.next()` one by one.
pub(crate) fn iter() -> impl Iterator<Item = Node<T, I>> {
// We need a touch of special handling here: because we permit `T::BagThresholds` to
// omit the final bound, we need to ensure that we explicitly include that threshold in the
@@ -292,6 +292,13 @@ impl<T: Config<I>, I: 'static> List<T, I> {
.filter_map(Bag::get)
.flat_map(|bag| bag.iter());
+ crate::log!(
+ debug,
+ "starting to iterate from {:?}, who's bag is {:?}, and there are {:?} leftover bags",
+ &start,
+ start_node_upper,
+ idx
+ );
Ok(start_bag.chain(leftover_bags))
}
@@ -331,7 +338,7 @@ impl<T: Config<I>, I: 'static> List<T, I> {
bag.put();
crate::log!(
- debug,
+ trace,
"inserted {:?} with score {:?} into bag {:?}, new count is {}",
id,
score,
diff --git a/substrate/frame/beefy/Cargo.toml b/substrate/frame/beefy/Cargo.toml
index b8e952dfbd6..1cb4c41f41b 100644
--- a/substrate/frame/beefy/Cargo.toml
+++ b/substrate/frame/beefy/Cargo.toml
@@ -36,6 +36,7 @@ sp-core = { workspace = true, default-features = true }
sp-io = { workspace = true, default-features = true }
sp-staking = { workspace = true, default-features = true }
sp-state-machine = { workspace = true }
+sp-tracing = { workspace = true, default-features = true }
[features]
default = ["std"]
diff --git a/substrate/frame/beefy/src/mock.rs b/substrate/frame/beefy/src/mock.rs
index fc731e3bc50..2f90edf3c35 100644
--- a/substrate/frame/beefy/src/mock.rs
+++ b/substrate/frame/beefy/src/mock.rs
@@ -16,9 +16,6 @@
// limitations under the License.
use codec::{Decode, Encode};
-use scale_info::TypeInfo;
-use std::vec;
-
use frame_election_provider_support::{
bounds::{ElectionBounds, ElectionBoundsBuilder},
onchain, SequentialPhragmen, Weight,
@@ -29,14 +26,15 @@ use frame_support::{
};
use frame_system::pallet_prelude::HeaderFor;
use pallet_session::historical as pallet_session_historical;
-use sp_core::{crypto::KeyTypeId, ConstU128};
+use scale_info::TypeInfo;
+use sp_core::{crypto::KeyTypeId, ConstBool, ConstU128};
use sp_runtime::{
app_crypto::ecdsa::Public,
curve::PiecewiseLinear,
impl_opaque_keys,
testing::TestXt,
traits::{Header as HeaderT, OpaqueKeys},
- BuildStorage, Perbill,
+ BoundedVec, BuildStorage, Perbill,
};
use sp_staking::{EraIndex, SessionIndex};
use sp_state_machine::BasicExternalities;
@@ -237,7 +235,9 @@ impl onchain::Config for OnChainSeqPhragmen {
type Solver = SequentialPhragmen<u64, Perbill>;
type DataProvider = Staking;
type WeightInfo = ();
- type MaxWinners = ConstU32<100>;
+ type MaxWinnersPerPage = ConstU32<100>;
+ type MaxBackersPerWinner = ConstU32<100>;
+ type Sort = ConstBool<true>;
type Bounds = ElectionsBoundsOnChain;
}
@@ -277,6 +277,7 @@ impl ExtBuilder {
}
pub fn build(self) -> sp_io::TestExternalities {
+ sp_tracing::try_init_simple();
let mut t = frame_system::GenesisConfig::<Test>::default().build_storage().unwrap();
let balances: Vec<_> =
@@ -313,7 +314,7 @@ impl ExtBuilder {
validator_count: 2,
force_era: pallet_staking::Forcing::ForceNew,
minimum_validator_count: 0,
- invulnerables: vec![],
+ invulnerables: BoundedVec::new(),
..Default::default()
};
diff --git a/substrate/frame/beefy/src/tests.rs b/substrate/frame/beefy/src/tests.rs
index 1bd0a72b25e..5f713a41caf 100644
--- a/substrate/frame/beefy/src/tests.rs
+++ b/substrate/frame/beefy/src/tests.rs
@@ -39,6 +39,8 @@ use crate::{self as beefy, mock::*, Call, Config, Error, WeightInfoExt};
fn init_block(block: u64) {
System::set_block_number(block);
+ // Staking has to also be initialized, and be the first, to have the new validator set ready.
+ Staking::on_initialize(block);
Session::on_initialize(block);
}
diff --git a/substrate/frame/benchmarking/src/lib.rs b/substrate/frame/benchmarking/src/lib.rs
index 6e21356e9d4..0af02ccc1af 100644
--- a/substrate/frame/benchmarking/src/lib.rs
+++ b/substrate/frame/benchmarking/src/lib.rs
@@ -381,7 +381,7 @@ pub use v1::*;
///
/// #[extrinsic_call]
/// _(RuntimeOrigin::Signed(caller), vec![0u8; l]);
-///
+///
/// // Everything onwards will be treated as test.
/// assert_last_event::<T>(Event::FooExecuted { result: Ok(()) }.into());
/// Ok(())
diff --git a/substrate/frame/delegated-staking/src/mock.rs b/substrate/frame/delegated-staking/src/mock.rs
index 42b876d049a..003d3380f66 100644
--- a/substrate/frame/delegated-staking/src/mock.rs
+++ b/substrate/frame/delegated-staking/src/mock.rs
@@ -24,7 +24,7 @@ use frame_support::{
PalletId,
};
-use sp_runtime::{traits::IdentityLookup, BuildStorage, Perbill};
+use sp_runtime::{traits::IdentityLookup, BoundedVec, BuildStorage, Perbill};
use frame_election_provider_support::{
bounds::{ElectionBounds, ElectionBoundsBuilder},
@@ -32,7 +32,7 @@ use frame_election_provider_support::{
};
use frame_support::dispatch::RawOrigin;
use pallet_staking::{ActiveEra, ActiveEraInfo, CurrentEra};
-use sp_core::U256;
+use sp_core::{ConstBool, U256};
use sp_runtime::traits::Convert;
use sp_staking::{Agent, Stake, StakingInterface};
@@ -96,7 +96,9 @@ impl onchain::Config for OnChainSeqPhragmen {
type Solver = SequentialPhragmen<Balance, sp_runtime::Perbill>;
type DataProvider = Staking;
type WeightInfo = ();
- type MaxWinners = ConstU32<100>;
+ type MaxWinnersPerPage = ConstU32<100>;
+ type MaxBackersPerWinner = ConstU32<100>;
+ type Sort = ConstBool<true>;
type Bounds = ElectionsBoundsOnChain;
}
@@ -220,7 +222,7 @@ impl ExtBuilder {
// ideal validator count
validator_count: 2,
minimum_validator_count: 1,
- invulnerables: vec![],
+ invulnerables: BoundedVec::new(),
slash_reward_fraction: Perbill::from_percent(10),
min_nominator_bond: ExistentialDeposit::get(),
min_validator_bond: ExistentialDeposit::get(),
diff --git a/substrate/frame/election-provider-multi-block/Cargo.toml b/substrate/frame/election-provider-multi-block/Cargo.toml
new file mode 100644
index 00000000000..907523d2883
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/Cargo.toml
@@ -0,0 +1,84 @@
+[package]
+name = "pallet-election-provider-multi-block"
+version = "0.9.0"
+authors.workspace = true
+edition.workspace = true
+license = "Apache-2.0"
+homepage.workspace = true
+repository.workspace = true
+description = "PALLET multi phase+block election providers"
+
+[lints]
+workspace = true
+
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+
+[dependencies]
+codec = { features = [
+ "derive",
+], workspace = true }
+log = { workspace = true }
+scale-info = { features = [
+ "derive",
+], workspace = true }
+
+frame-election-provider-support = { workspace = true }
+frame-support = { workspace = true }
+frame-system = { workspace = true }
+
+sp-arithmetic = { workspace = true }
+sp-core = { workspace = true }
+sp-io = { workspace = true }
+sp-npos-elections = { workspace = true }
+sp-runtime = { workspace = true }
+sp-std = { workspace = true }
+
+# Optional imports for benchmarking
+frame-benchmarking = { optional = true, workspace = true }
+rand = { features = ["alloc", "small_rng"], optional = true, workspace = true }
+
+[dev-dependencies]
+frame-benchmarking = { workspace = true, default-features = true }
+pallet-balances = { workspace = true, default-features = true }
+parking_lot = { workspace = true, default-features = true }
+sp-core = { workspace = true }
+sp-io = { workspace = true, default-features = true }
+sp-tracing = { workspace = true, default-features = true }
+
+[features]
+default = ["std"]
+std = [
+ "codec/std",
+ "frame-benchmarking?/std",
+ "frame-election-provider-support/std",
+ "frame-support/std",
+ "frame-system/std",
+ "log/std",
+ "pallet-balances/std",
+ "rand/std",
+ "scale-info/std",
+ "sp-arithmetic/std",
+ "sp-core/std",
+ "sp-io/std",
+ "sp-npos-elections/std",
+ "sp-runtime/std",
+ "sp-std/std",
+ "sp-tracing/std",
+]
+runtime-benchmarks = [
+ "frame-benchmarking/runtime-benchmarks",
+ "frame-election-provider-support/runtime-benchmarks",
+ "frame-support/runtime-benchmarks",
+ "frame-system/runtime-benchmarks",
+ "pallet-balances/runtime-benchmarks",
+ "rand",
+ "sp-runtime/runtime-benchmarks",
+]
+try-runtime = [
+ "frame-election-provider-support/try-runtime",
+ "frame-support/try-runtime",
+ "frame-system/try-runtime",
+ "pallet-balances/try-runtime",
+ "sp-runtime/try-runtime",
+]
diff --git a/substrate/frame/election-provider-multi-block/src/benchmarking.rs b/substrate/frame/election-provider-multi-block/src/benchmarking.rs
new file mode 100644
index 00000000000..2af6e6747a7
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/benchmarking.rs
@@ -0,0 +1,170 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use crate::{Config, CurrentPhase, Pallet, Phase, Snapshot};
+use frame_benchmarking::v2::*;
+use frame_election_provider_support::ElectionDataProvider;
+use frame_support::pallet_prelude::*;
+const SNAPSHOT_NOT_BIG_ENOUGH: &'static str = "Snapshot page is not full, you should run this \
+benchmark with enough genesis stakers in staking (DataProvider) to fill a page of voters/targets \
+as per VoterSnapshotPerBlock and TargetSnapshotPerBlock. Generate at least \
+2 * VoterSnapshotPerBlock) nominators and TargetSnapshotPerBlock validators";
+
+#[benchmarks(where T: crate::signed::Config + crate::unsigned::Config + crate::verifier::Config)]
+mod benchmarks {
+ use super::*;
+
+ #[benchmark]
+ fn on_initialize_nothing() -> Result<(), BenchmarkError> {
+ T::DataProvider::set_next_election(Pallet::<T>::reasonable_next_election());
+ assert_eq!(CurrentPhase::<T>::get(), Phase::Off);
+
+ #[block]
+ {
+ Pallet::<T>::roll_next(true, false);
+ }
+
+ assert_eq!(CurrentPhase::<T>::get(), Phase::Off);
+ Ok(())
+ }
+
+ #[benchmark]
+ fn on_initialize_into_snapshot_msp() -> Result<(), BenchmarkError> {
+ assert!(T::Pages::get() >= 2, "this benchmark only works in a runtime with 2 pages or more, set at least `type Pages = 2` for benchmark run");
+ T::DataProvider::set_next_election(Pallet::<T>::reasonable_next_election());
+ // TODO: the results of this benchmark cause too many hits to voters bags list, why???
+
+ // roll to next block until we are about to go into the snapshot.
+ Pallet::<T>::run_until_before_matches(|| {
+ matches!(CurrentPhase::<T>::get(), Phase::Snapshot(_))
+ });
+
+ // since we reverted the last page, we are still in phase Off.
+ assert_eq!(CurrentPhase::<T>::get(), Phase::Off);
+
+ #[block]
+ {
+ Pallet::<T>::roll_next(true, false);
+ }
+
+ assert_eq!(CurrentPhase::<T>::get(), Phase::Snapshot(T::Pages::get() - 1));
+ assert_eq!(
+ Snapshot::<T>::voters_decode_len(T::Pages::get() - 1).unwrap() as u32,
+ T::VoterSnapshotPerBlock::get(),
+ "{}",
+ SNAPSHOT_NOT_BIG_ENOUGH
+ );
+ assert_eq!(
+ Snapshot::<T>::targets_decode_len().unwrap() as u32,
+ T::TargetSnapshotPerBlock::get(),
+ "{}",
+ SNAPSHOT_NOT_BIG_ENOUGH
+ );
+
+ Ok(())
+ }
+
+ #[benchmark]
+ fn on_initialize_into_snapshot_rest() -> Result<(), BenchmarkError> {
+ assert!(T::Pages::get() >= 2, "this benchmark only works in a runtime with 2 pages or more, set at least `type Pages = 2` for benchmark run");
+ T::DataProvider::set_next_election(Pallet::<T>::reasonable_next_election());
+
+ // roll to the first block of the snapshot.
+ Pallet::<T>::roll_until_matches(|| matches!(CurrentPhase::<T>::get(), Phase::Snapshot(_)));
+
+ assert_eq!(CurrentPhase::<T>::get(), Phase::Snapshot(T::Pages::get() - 1));
+
+ // take one more snapshot page.
+ #[block]
+ {
+ Pallet::<T>::roll_next(true, false);
+ }
+
+ assert_eq!(CurrentPhase::<T>::get(), Phase::Snapshot(T::Pages::get() - 2));
+ assert_eq!(
+ Snapshot::<T>::voters_decode_len(T::Pages::get() - 2).unwrap() as u32,
+ T::VoterSnapshotPerBlock::get(),
+ "{}",
+ SNAPSHOT_NOT_BIG_ENOUGH
+ );
+ Ok(())
+ }
+
+ #[benchmark]
+ fn on_initialize_into_signed() -> Result<(), BenchmarkError> {
+ T::DataProvider::set_next_election(Pallet::<T>::reasonable_next_election());
+ Pallet::<T>::run_until_before_matches(|| matches!(CurrentPhase::<T>::get(), Phase::Signed));
+
+ assert_eq!(CurrentPhase::<T>::get(), Phase::Snapshot(0));
+
+ #[block]
+ {
+ Pallet::<T>::roll_next(true, false);
+ }
+
+ assert_eq!(CurrentPhase::<T>::get(), Phase::Signed);
+
+ Ok(())
+ }
+
+ #[benchmark]
+ fn on_initialize_into_signed_validation() -> Result<(), BenchmarkError> {
+ T::DataProvider::set_next_election(Pallet::<T>::reasonable_next_election());
+ Pallet::<T>::run_until_before_matches(|| {
+ matches!(CurrentPhase::<T>::get(), Phase::SignedValidation(_))
+ });
+
+ assert_eq!(CurrentPhase::<T>::get(), Phase::Signed);
+
+ #[block]
+ {
+ Pallet::<T>::roll_next(true, false);
+ }
+
+ Ok(())
+ }
+
+ #[benchmark]
+ fn on_initialize_into_unsigned() -> Result<(), BenchmarkError> {
+ T::DataProvider::set_next_election(Pallet::<T>::reasonable_next_election());
+ Pallet::<T>::run_until_before_matches(|| {
+ matches!(CurrentPhase::<T>::get(), Phase::Unsigned(_))
+ });
+ assert!(matches!(CurrentPhase::<T>::get(), Phase::SignedValidation(_)));
+
+ #[block]
+ {
+ Pallet::<T>::roll_next(true, false);
+ }
+
+ assert!(matches!(CurrentPhase::<T>::get(), Phase::Unsigned(_)));
+ Ok(())
+ }
+
+ #[benchmark]
+ fn manage() -> Result<(), BenchmarkError> {
+ #[block]
+ {}
+ Ok(())
+ }
+
+ impl_benchmark_test_suite!(
+ Pallet,
+ crate::mock::ExtBuilder::full().build_unchecked(),
+ crate::mock::Runtime
+ );
+}
diff --git a/substrate/frame/election-provider-multi-block/src/helpers.rs b/substrate/frame/election-provider-multi-block/src/helpers.rs
new file mode 100644
index 00000000000..20396ac97d2
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/helpers.rs
@@ -0,0 +1,227 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Some helper functions/macros for this crate.
+
+use crate::{
+ types::{PageIndex, VoterOf},
+ unsigned::miner::MinerConfig,
+ AllVoterPagesOf, SolutionTargetIndexOf, SolutionVoterIndexOf, VoteWeight,
+};
+use frame_support::{traits::Get, BoundedVec};
+use sp_runtime::SaturatedConversion;
+use sp_std::{collections::btree_map::BTreeMap, convert::TryInto, prelude::*};
+
+/// Emit a log specific to this pallet, setting the target to [`crate::LOG_PREFIX`]
+#[macro_export]
+macro_rules! log {
+ ($level:tt, $pattern:expr $(, $values:expr)* $(,)?) => {
+ log::$level!(
+ target: $crate::LOG_PREFIX,
+ concat!("[#{:?}] 🗳🗳🗳 ", $pattern), <frame_system::Pallet<T>>::block_number() $(, $values)*
+ )
+ };
+}
+
+/// Emit a log within a submodule of the pallet
+#[macro_export]
+macro_rules! sublog {
+ ($level:tt, $sub_pallet:tt, $pattern:expr $(, $values:expr)* $(,)?) => {
+ #[cfg(not(feature = "std"))]
+ log!($level, $pattern $(, $values )*);
+ #[cfg(feature = "std")]
+ log::$level!(
+ target: format!("{}::{}", $crate::LOG_PREFIX, $sub_pallet).as_ref(),
+ concat!("[#{:?}] 🗳🗳🗳 ", $pattern), <frame_system::Pallet<T>>::block_number() $(, $values )*
+ )
+ };
+}
+
+/// Emit a log from within the offchain miner.
+#[macro_export]
+macro_rules! miner_log {
+ ($level:tt, $pattern:expr $(, $values:expr)* $(,)?) => {
+ log::$level!(
+ target: $crate::LOG_PREFIX,
+ concat!("[â›ï¸miner] 🗳🗳🗳 ", $pattern) $(, $values)*
+ )
+ };
+}
+
+/// Generate an `efficient closure of voters and the page in which they live in.
+pub(crate) fn generate_voter_page_fn<T: MinerConfig>(
+ paged_snapshot: &AllVoterPagesOf<T>,
+) -> impl Fn(&T::AccountId) -> Option<PageIndex> {
+ let mut cache: BTreeMap<T::AccountId, PageIndex> = BTreeMap::new();
+ paged_snapshot
+ .iter()
+ .enumerate()
+ .map(|(page, whatever)| (page.saturated_into::<PageIndex>(), whatever))
+ .for_each(|(page, page_voters)| {
+ page_voters.iter().for_each(|(v, _, _)| {
+ let _existed = cache.insert(v.clone(), page);
+ // if a duplicate exists, we only consider the last one. Defensive only, should
+ // never happen.
+ debug_assert!(_existed.is_none());
+ });
+ });
+ move |who| cache.get(who).copied()
+}
+
+/// Generate a btree-map cache of the voters and their indices within the provided `snapshot`.
+///
+/// This does not care about pagination. `snapshot` might be a single page or the entire blob of
+/// voters.
+///
+/// This can be used to efficiently build index getter closures.
+pub(crate) fn generate_voter_cache<T: MinerConfig, AnyBound: Get<u32>>(
+ snapshot: &BoundedVec<VoterOf<T>, AnyBound>,
+) -> BTreeMap<T::AccountId, usize> {
+ let mut cache: BTreeMap<T::AccountId, usize> = BTreeMap::new();
+ snapshot.iter().enumerate().for_each(|(i, (x, _, _))| {
+ let _existed = cache.insert(x.clone(), i);
+ // if a duplicate exists, we only consider the last one. Defensive only, should never
+ // happen.
+ debug_assert!(_existed.is_none());
+ });
+
+ cache
+}
+
+/// Create a function that returns the index of a voter in the snapshot.
+///
+/// Same as [`voter_index_fn`] but the returned function owns all its necessary data; nothing is
+/// borrowed.
+pub(crate) fn voter_index_fn_owned<T: MinerConfig>(
+ cache: BTreeMap<T::AccountId, usize>,
+) -> impl Fn(&T::AccountId) -> Option<SolutionVoterIndexOf<T>> {
+ move |who| {
+ cache
+ .get(who)
+ .and_then(|i| <usize as TryInto<SolutionVoterIndexOf<T>>>::try_into(*i).ok())
+ }
+}
+
+/// Same as [`voter_index_fn`], but the returning index is converted into usize, if possible.
+///
+/// ## Warning
+///
+/// Note that this will represent the snapshot data from which the `cache` is generated.
+pub(crate) fn voter_index_fn_usize<T: MinerConfig>(
+ cache: &BTreeMap<T::AccountId, usize>,
+) -> impl Fn(&T::AccountId) -> Option<usize> + '_ {
+ move |who| cache.get(who).cloned()
+}
+
+/// A non-optimized, linear version of [`voter_index_fn`] that does not need a cache and does a
+/// linear search.
+///
+/// ## Warning
+///
+/// Not meant to be used in production.
+#[cfg(test)]
+pub(crate) fn voter_index_fn_linear<T: MinerConfig>(
+ snapshot: &Vec<VoterOf<T>>,
+) -> impl Fn(&T::AccountId) -> Option<SolutionVoterIndexOf<T>> + '_ {
+ move |who| {
+ snapshot
+ .iter()
+ .position(|(x, _, _)| x == who)
+ .and_then(|i| <usize as TryInto<SolutionVoterIndexOf<T>>>::try_into(i).ok())
+ }
+}
+
+/// Create a function that returns the index of a target in the snapshot.
+///
+/// The returned index type is the same as the one defined in `T::Solution::Target`.
+///
+/// Note: to the extent possible, the returned function should be cached and reused. Producing that
+/// function requires a `O(n log n)` data transform. Each invocation of that function completes
+/// in `O(log n)`.
+pub(crate) fn target_index_fn<T: MinerConfig>(
+ snapshot: &Vec<T::AccountId>,
+) -> impl Fn(&T::AccountId) -> Option<SolutionTargetIndexOf<T>> + '_ {
+ let cache: BTreeMap<_, _> =
+ snapshot.iter().enumerate().map(|(idx, account_id)| (account_id, idx)).collect();
+ move |who| {
+ cache
+ .get(who)
+ .and_then(|i| <usize as TryInto<SolutionTargetIndexOf<T>>>::try_into(*i).ok())
+ }
+}
+
+/// Create a function the returns the index to a target in the snapshot.
+///
+/// The returned index type is the same as the one defined in `T::Solution::Target`.
+///
+/// ## Warning
+///
+/// Not meant to be used in production.
+#[cfg(test)]
+pub(crate) fn target_index_fn_linear<T: MinerConfig>(
+ snapshot: &Vec<T::AccountId>,
+) -> impl Fn(&T::AccountId) -> Option<SolutionTargetIndexOf<T>> + '_ {
+ move |who| {
+ snapshot
+ .iter()
+ .position(|x| x == who)
+ .and_then(|i| <usize as TryInto<SolutionTargetIndexOf<T>>>::try_into(i).ok())
+ }
+}
+
+/// Create a function that can map a voter index ([`SolutionVoterIndexOf`]) to the actual voter
+/// account using a linearly indexible snapshot.
+pub(crate) fn voter_at_fn<T: MinerConfig>(
+ snapshot: &Vec<VoterOf<T>>,
+) -> impl Fn(SolutionVoterIndexOf<T>) -> Option<T::AccountId> + '_ {
+ move |i| {
+ <SolutionVoterIndexOf<T> as TryInto<usize>>::try_into(i)
+ .ok()
+ .and_then(|i| snapshot.get(i).map(|(x, _, _)| x).cloned())
+ }
+}
+
+/// Create a function that can map a target index ([`SolutionTargetIndexOf`]) to the actual target
+/// account using a linearly indexible snapshot.
+pub(crate) fn target_at_fn<T: MinerConfig>(
+ snapshot: &Vec<T::AccountId>,
+) -> impl Fn(SolutionTargetIndexOf<T>) -> Option<T::AccountId> + '_ {
+ move |i| {
+ <SolutionTargetIndexOf<T> as TryInto<usize>>::try_into(i)
+ .ok()
+ .and_then(|i| snapshot.get(i).cloned())
+ }
+}
+
+/// Create a function to get the stake of a voter.
+///
+/// ## Warning
+///
+/// The cache need must be derived from the same snapshot. Zero is returned if a voter is
+/// non-existent.
+pub(crate) fn stake_of_fn<'a, T: MinerConfig, AnyBound: Get<u32>>(
+ snapshot: &'a BoundedVec<VoterOf<T>, AnyBound>,
+ cache: &'a BTreeMap<T::AccountId, usize>,
+) -> impl Fn(&T::AccountId) -> VoteWeight + 'a {
+ move |who| {
+ if let Some(index) = cache.get(who) {
+ snapshot.get(*index).map(|(_, x, _)| x).cloned().unwrap_or_default()
+ } else {
+ 0
+ }
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/lib.rs b/substrate/frame/election-provider-multi-block/src/lib.rs
new file mode 100644
index 00000000000..355f117bc45
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/lib.rs
@@ -0,0 +1,2556 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! # Multi-phase, multi-block, election provider pallet.
+//!
+//! ## Overall idea
+//!
+//! `pallet_election_provider_multi_phase` provides the basic ability for NPoS solutions to be
+//! computed offchain (essentially anywhere) and submitted back to the chain as signed or unsigned
+//! transaction, with sensible configurations and fail-safe mechanisms to ensure system safety.
+//! Nonetheless, it has a limited capacity in terms of number of voters it can process in a **single
+//! block**.
+//!
+//! This pallet takes `pallet_election_provider_multi_phase`, keeps most of its ideas and core
+//! premises, and extends it to support paginated, multi-block operations. The final goal of this
+//! pallet is scale linearly with the number of blocks allocated to the elections. Moreover, the
+//! amount of work that it does in one block should be bounded and measurable, making it suitable
+//! for a parachain. In principle, with large enough blocks (in a dedicated parachain), the number
+//! of voters included in the NPoS system can grow significantly (yet, obviously not indefinitely).
+//!
+//! Note that this pallet does not consider how the recipient is processing the results. To ensure
+//! scalability, of course, the recipient of this pallet's data (i.e. `pallet-staking`) must also be
+//! capable of pagination and multi-block processing.
+//!
+//! ## Companion pallets
+//!
+//! This pallet is essentially hierarchical. This particular one is the top level one. It contains
+//! the shared information that all child pallets use. All child pallets depend on the top level
+//! pallet ONLY, but not the other way around. For those cases, traits are used.
+//!
+//! This pallet will only function in a sensible way if it is peered with its companion pallets.
+//!
+//! - The [`verifier`] pallet provides a standard implementation of the [`verifier::Verifier`]. This
+//! pallet is mandatory.
+//! - The [`unsigned`] module provides the implementation of unsigned submission by validators. If
+//! this pallet is included, then [`Config::UnsignedPhase`] will determine its duration.
+//! - The [`signed`] module provides the implementation of the signed submission by any account. If
+//! this pallet is included, the combined [`Config::SignedPhase`] and
+//! [`Config::SignedValidationPhase`] will determine its duration
+//!
+//! ### Pallet Ordering:
+//!
+//! The ordering of these pallets in a runtime should be:
+//! 1. parent
+//! 2. verifier
+//! 3. signed
+//! 4. unsigned
+//!
+//! This is critical for the phase transition to work.
+//!
+//! This should be manually checked, there is not automated way to test it.
+//!
+//! ## Pagination
+//!
+//! Most of the external APIs of this pallet are paginated. All pagination follow a patter where if
+//! `N` pages exist, the first paginated call is `function(N-1)` and the last one is `function(0)`.
+//! For example, with 3 pages, the `elect` of [`ElectionProvider`] is expected to be called as
+//! `elect(2) -> elect(1) -> elect(0)`. In essence, calling a paginated function with index 0 is
+//! always a signal of termination, meaning that no further calls will follow.
+//!
+//! ## Phases
+//!
+//! The timeline of pallet is overall as follows:
+//!
+//! ```ignore
+//! < Off >
+//! 0 ------- 12 13 14 15 ----------- 20 ---------25 ------- 30
+//! | | | | |
+//! Snapshot Signed SignedValidation Unsigned Elect
+//! ```
+//!
+//! * Duration of `Snapshot` is determined by [`Config::Pages`].
+//! * Duration of `Signed`, `SignedValidation` and `Unsigned` are determined by
+//! [`Config::SignedPhase`], [`Config::SignedValidationPhase`] and [`Config::UnsignedPhase`]
+//! respectively.
+//! * [`Config::Pages`] calls to elect are expected, but all in all the pallet will close a round
+//! once `elect(0)` is called.
+//! * The pallet strives to be ready for the first call to `elect`, for example `elect(2)` if 3
+//! pages.
+//! * This pallet can be commanded to to be ready sooner with [`Config::Lookahead`].
+//!
+//! > Given this, it is rather important for the user of this pallet to ensure it always terminates
+//! > election via `elect` before requesting a new one.
+//!
+//! ## Feasible Solution (correct solution)
+//!
+//! All submissions must undergo a feasibility check. Signed solutions are checked on by one at the
+//! end of the signed phase, and the unsigned solutions are checked on the spot. A feasible solution
+//! is as follows:
+//!
+//! 0. **all** of the used indices must be correct.
+//! 1. present *exactly* correct number of winners.
+//! 2. any assignment is checked to match with `PagedVoterSnapshot`.
+//! 3. the claimed score is valid, based on the fixed point arithmetic accuracy.
+//!
+//! ### Emergency Phase and Fallback
+//!
+//! * [`Config::Fallback`] is called on each page. It typically may decide to:
+//!
+//! 1. Do nothing,
+//! 2. Force us into the emergency phase
+//! 3. computer an onchain from the give page of snapshot. Note that this will be sub-optimal,
+//! because the proper pagination size of snapshot and fallback will likely differ a lot.
+//!
+//! Note that configuring the fallback to be onchain computation is not recommended, unless for
+//! test-nets for a number of reasons:
+//!
+//! 1. The solution score of fallback is never checked to be match the "minimum" score. That being
+//! said, the computation happens onchain so we can trust it.
+//! 2. The onchain fallback runs on the same number of voters and targets that reside on a single
+//! page of a snapshot, which will very likely be too much for actual onchain computation. Yet,
+//! we don't have another choice as we cannot request another smaller snapshot from the data
+//! provider mid-election without more bookkeeping on the staking side.
+//!
+//! If onchain solution is to be seriously considered, an improvement to this pallet should
+//! re-request a smaller set of voters from `T::DataProvider` in a stateless manner.
+//!
+//! ### Signed Phase
+//!
+//! Signed phase is when an offchain miner, aka, `polkadot-staking-miner` should operate upon. See
+//! [`signed`] for more information.
+//!
+//! ## Unsigned Phase
+//!
+//! Unsigned phase is a built-in fallback in which validators may submit a single page election,
+//! taking into account only the [`ElectionProvider::msp`] (_most significant page_). See
+//! [`crate::unsigned`] for more information.
+
+// Implementation notes:
+//
+// - Naming convention is: `${singular}_page` for singular, e.g. `voter_page` for `Vec<Voter>`.
+// `paged_${plural}` for plural, e.g. `paged_voters` for `Vec<Vec<Voter>>`.
+//
+// - Since this crate has multiple `Pallet` and `Configs`, in each sub-pallet, we only reference the
+// local `Pallet` without a prefix and allow it to be imported via `use`. Avoid `super::Pallet`
+// except for the case of a modules that want to reference their local `Pallet` . The
+// `crate::Pallet` is always reserved for the parent pallet. Other sibling pallets must be
+// referenced with full path, e.g. `crate::Verifier::Pallet`. Do NOT write something like `use
+// unsigned::Pallet as UnsignedPallet`.
+//
+// - Respecting private storage items with wrapper We move all implementations out of the `mod
+// pallet` as much as possible to ensure we NEVER access the internal storage items directly. All
+// operations should happen with the wrapper types.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+use crate::types::*;
+use codec::{Decode, Encode, MaxEncodedLen};
+use frame_election_provider_support::{
+ onchain, BoundedSupportsOf, DataProviderBounds, ElectionDataProvider, ElectionProvider,
+ InstantElectionProvider,
+};
+use frame_support::{
+ pallet_prelude::*,
+ traits::{Defensive, EnsureOrigin},
+ DebugNoBound, Twox64Concat,
+};
+use frame_system::pallet_prelude::*;
+use scale_info::TypeInfo;
+use sp_arithmetic::{
+ traits::{CheckedAdd, Zero},
+ PerThing, UpperOf,
+};
+use sp_npos_elections::VoteWeight;
+use sp_runtime::{
+ traits::{Hash, Saturating},
+ SaturatedConversion,
+};
+use sp_std::{borrow::ToOwned, boxed::Box, prelude::*};
+use verifier::Verifier;
+
+#[cfg(test)]
+mod mock;
+#[macro_use]
+pub mod helpers;
+#[cfg(feature = "runtime-benchmarks")]
+pub mod benchmarking;
+
+/// The common logginv prefix of all pallets in this crate.
+pub const LOG_PREFIX: &'static str = "runtime::multiblock-election";
+
+macro_rules! clear_paged_map {
+ ($map: ty) => {{
+ let __r = <$map>::clear(u32::MAX, None);
+ debug_assert!(__r.unique <= T::Pages::get(), "clearing map caused too many removals")
+ }};
+}
+
+/// The signed pallet
+pub mod signed;
+/// Common types of the pallet
+pub mod types;
+/// The unsigned pallet
+pub mod unsigned;
+/// The verifier pallet
+pub mod verifier;
+/// The weight module
+pub mod weights;
+
+pub use pallet::*;
+pub use types::*;
+pub use weights::measured::pallet_election_provider_multi_block::WeightInfo;
+
+/// A fallback implementation that transitions the pallet to the emergency phase.
+pub struct InitiateEmergencyPhase<T>(sp_std::marker::PhantomData<T>);
+impl<T: Config> ElectionProvider for InitiateEmergencyPhase<T> {
+ type AccountId = T::AccountId;
+ type BlockNumber = BlockNumberFor<T>;
+ type DataProvider = T::DataProvider;
+ type Error = &'static str;
+ type Pages = T::Pages;
+ type MaxBackersPerWinner = <T::Verifier as Verifier>::MaxBackersPerWinner;
+ type MaxWinnersPerPage = <T::Verifier as Verifier>::MaxWinnersPerPage;
+
+ fn elect(_page: PageIndex) -> Result<BoundedSupportsOf<Self>, Self::Error> {
+ Pallet::<T>::phase_transition(Phase::Emergency);
+ Err("Emergency phase started.")
+ }
+
+ fn ongoing() -> bool {
+ false
+ }
+}
+
+impl<T: Config> InstantElectionProvider for InitiateEmergencyPhase<T> {
+ fn instant_elect(
+ _voters: Vec<VoterOf<T::MinerConfig>>,
+ _targets: Vec<Self::AccountId>,
+ _desired_targets: u32,
+ ) -> Result<BoundedSupportsOf<Self>, Self::Error> {
+ Self::elect(0)
+ }
+
+ fn bother() -> bool {
+ false
+ }
+}
+
+/// A fallback implementation that silently continues into the next page.
+///
+/// This is suitable for onchain usage.
+pub struct Continue<T>(sp_std::marker::PhantomData<T>);
+impl<T: Config> ElectionProvider for Continue<T> {
+ type AccountId = T::AccountId;
+ type BlockNumber = BlockNumberFor<T>;
+ type DataProvider = T::DataProvider;
+ type Error = &'static str;
+ type Pages = T::Pages;
+ type MaxBackersPerWinner = <T::Verifier as Verifier>::MaxBackersPerWinner;
+ type MaxWinnersPerPage = <T::Verifier as Verifier>::MaxWinnersPerPage;
+
+ fn elect(_page: PageIndex) -> Result<BoundedSupportsOf<Self>, Self::Error> {
+ log!(warn, "'Continue' fallback will do nothing");
+ Err("'Continue' fallback will do nothing")
+ }
+
+ fn ongoing() -> bool {
+ false
+ }
+}
+
+impl<T: Config> InstantElectionProvider for Continue<T> {
+ fn instant_elect(
+ _voters: Vec<VoterOf<T::MinerConfig>>,
+ _targets: Vec<Self::AccountId>,
+ _desired_targets: u32,
+ ) -> Result<BoundedSupportsOf<Self>, Self::Error> {
+ Self::elect(0)
+ }
+
+ fn bother() -> bool {
+ false
+ }
+}
+
+/// Internal errors of the pallet. This is used in the implementation of [`ElectionProvider`].
+///
+/// Note that this is different from [`pallet::Error`].
+#[derive(
+ frame_support::DebugNoBound, frame_support::PartialEqNoBound, frame_support::EqNoBound,
+)]
+pub enum ElectionError<T: Config> {
+ /// An error happened in the feasibility check sub-system.
+ Feasibility(verifier::FeasibilityError),
+ /// An error in the fallback.
+ Fallback(FallbackErrorOf<T>),
+ /// An error in the onchain seq-phragmen implementation
+ OnChain(onchain::Error),
+ /// An error happened in the data provider.
+ DataProvider(&'static str),
+ /// the corresponding page in the queued supports is not available.
+ SupportPageNotAvailable,
+ /// The election is not ongoing and therefore no results may be queried.
+ NotOngoing,
+ /// Other misc error
+ Other(&'static str),
+}
+
+impl<T: Config> From<onchain::Error> for ElectionError<T> {
+ fn from(e: onchain::Error) -> Self {
+ ElectionError::OnChain(e)
+ }
+}
+
+impl<T: Config> From<verifier::FeasibilityError> for ElectionError<T> {
+ fn from(e: verifier::FeasibilityError) -> Self {
+ ElectionError::Feasibility(e)
+ }
+}
+
+/// Different operations that the [`Config::AdminOrigin`] can perform on the pallet.
+#[derive(
+ Encode, Decode, MaxEncodedLen, TypeInfo, DebugNoBound, CloneNoBound, PartialEqNoBound, EqNoBound,
+)]
+#[codec(mel_bound(T: Config))]
+#[scale_info(skip_type_params(T))]
+pub enum AdminOperation<T: Config> {
+ /// Forcefully go to the next round, starting from the Off Phase.
+ ForceRotateRound,
+ /// Force-set the phase to the given phase.
+ ///
+ /// This can have many many combinations, use only with care and sufficient testing.
+ ForceSetPhase(Phase<BlockNumberFor<T>>),
+ /// Set the given (single page) emergency solution.
+ ///
+ /// Can only be called in emergency phase.
+ EmergencySetSolution(Box<BoundedSupportsOf<Pallet<T>>>, ElectionScore),
+ /// Trigger the (single page) fallback in `instant` mode, with the given parameters, and
+ /// queue it if correct.
+ ///
+ /// Can only be called in emergency phase.
+ EmergencyFallback,
+ /// Set the minimum untrusted score. This is directly communicated to the verifier component to
+ /// be taken into account.
+ ///
+ /// This is useful in preventing any serious issue where due to a bug we accept a very bad
+ /// solution.
+ SetMinUntrustedScore(ElectionScore),
+}
+
+#[frame_support::pallet]
+pub mod pallet {
+ use super::*;
+ #[pallet::config]
+ pub trait Config: frame_system::Config {
+ /// The overarching runtime event type.
+ type RuntimeEvent: From<Event<Self>>
+ + IsType<<Self as frame_system::Config>::RuntimeEvent>
+ + TryInto<Event<Self>>;
+
+ /// Duration of the unsigned phase.
+ #[pallet::constant]
+ type UnsignedPhase: Get<BlockNumberFor<Self>>;
+ /// Duration of the signed phase.
+ #[pallet::constant]
+ type SignedPhase: Get<BlockNumberFor<Self>>;
+ /// Duration of the singed validation phase.
+ ///
+ /// The duration of this should not be less than `T::Pages`, and there is no point in it
+ /// being more than `SignedPhase::MaxSubmission::get() * T::Pages`. TODO: integrity test for
+ /// it.
+ #[pallet::constant]
+ type SignedValidationPhase: Get<BlockNumberFor<Self>>;
+
+ /// The number of snapshot voters to fetch per block.
+ #[pallet::constant]
+ type VoterSnapshotPerBlock: Get<u32>;
+
+ /// The number of snapshot targets to fetch per block.
+ #[pallet::constant]
+ type TargetSnapshotPerBlock: Get<u32>;
+
+ /// The number of pages.
+ ///
+ /// The snapshot is created with this many keys in the storage map.
+ ///
+ /// The solutions may contain at MOST this many pages, but less pages are acceptable as
+ /// well.
+ #[pallet::constant]
+ type Pages: Get<PageIndex>;
+
+ /// Something that will provide the election data.
+ type DataProvider: ElectionDataProvider<
+ AccountId = Self::AccountId,
+ BlockNumber = BlockNumberFor<Self>,
+ >;
+
+ /// The miner configuration.
+ ///
+ /// These configurations are passed to [`crate::unsigned::miner::BaseMiner`]. An external
+ /// miner implementation should implement this trait, and use the said `BaseMiner`.
+ type MinerConfig: crate::unsigned::miner::MinerConfig<
+ Pages = Self::Pages,
+ AccountId = <Self as frame_system::Config>::AccountId,
+ MaxVotesPerVoter = <Self::DataProvider as ElectionDataProvider>::MaxVotesPerVoter,
+ VoterSnapshotPerBlock = Self::VoterSnapshotPerBlock,
+ TargetSnapshotPerBlock = Self::TargetSnapshotPerBlock,
+ MaxBackersPerWinner = <Self::Verifier as verifier::Verifier>::MaxBackersPerWinner,
+ MaxWinnersPerPage = <Self::Verifier as verifier::Verifier>::MaxWinnersPerPage,
+ >;
+
+ /// The fallback type used for the election.
+ type Fallback: InstantElectionProvider<
+ AccountId = Self::AccountId,
+ BlockNumber = BlockNumberFor<Self>,
+ DataProvider = Self::DataProvider,
+ MaxBackersPerWinner = <Self::Verifier as verifier::Verifier>::MaxBackersPerWinner,
+ MaxWinnersPerPage = <Self::Verifier as verifier::Verifier>::MaxWinnersPerPage,
+ >;
+
+ /// The verifier pallet's interface.
+ type Verifier: verifier::Verifier<
+ Solution = SolutionOf<Self::MinerConfig>,
+ AccountId = Self::AccountId,
+ > + verifier::AsynchronousVerifier;
+
+ /// The number of blocks ahead of time to try and have the election results ready by.
+ type Lookahead: Get<BlockNumberFor<Self>>;
+
+ /// The origin that can perform administration operations on this pallet.
+ type AdminOrigin: EnsureOrigin<Self::RuntimeOrigin>;
+
+ /// The weight of the pallet.
+ type WeightInfo: WeightInfo;
+ }
+
+ #[pallet::call]
+ impl<T: Config> Pallet<T> {
+ /// Manage this pallet.
+ ///
+ /// The origin of this call must be [`Config::AdminOrigin`].
+ ///
+ /// See [`AdminOperation`] for various operations that are possible.
+ #[pallet::weight(T::WeightInfo::manage())]
+ #[pallet::call_index(0)]
+ pub fn manage(origin: OriginFor<T>, op: AdminOperation<T>) -> DispatchResultWithPostInfo {
+ use crate::verifier::Verifier;
+ use sp_npos_elections::EvaluateSupport;
+
+ let _ = T::AdminOrigin::ensure_origin(origin);
+ match op {
+ AdminOperation::EmergencyFallback => {
+ ensure!(Self::current_phase() == Phase::Emergency, Error::<T>::UnexpectedPhase);
+ // note: for now we run this on the msp, but we can make it configurable if need
+ // be.
+ let voters = Snapshot::<T>::voters(Self::msp()).ok_or(Error::<T>::Snapshot)?;
+ let targets = Snapshot::<T>::targets().ok_or(Error::<T>::Snapshot)?;
+ let desired_targets =
+ Snapshot::<T>::desired_targets().ok_or(Error::<T>::Snapshot)?;
+ let fallback = T::Fallback::instant_elect(
+ voters.into_inner(),
+ targets.into_inner(),
+ desired_targets,
+ )
+ .map_err(|e| {
+ log!(warn, "Fallback failed: {:?}", e);
+ Error::<T>::Fallback
+ })?;
+ let score = fallback.evaluate();
+ T::Verifier::force_set_single_page_valid(fallback, 0, score);
+ Ok(().into())
+ },
+ AdminOperation::EmergencySetSolution(supports, score) => {
+ ensure!(Self::current_phase() == Phase::Emergency, Error::<T>::UnexpectedPhase);
+ T::Verifier::force_set_single_page_valid(*supports, 0, score);
+ Ok(().into())
+ },
+ AdminOperation::ForceSetPhase(phase) => {
+ Self::phase_transition(phase);
+ Ok(().into())
+ },
+ AdminOperation::ForceRotateRound => {
+ Self::rotate_round();
+ Ok(().into())
+ },
+ AdminOperation::SetMinUntrustedScore(score) => {
+ T::Verifier::set_minimum_score(score);
+ Ok(().into())
+ },
+ }
+ }
+ }
+
+ #[pallet::hooks]
+ impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {
+ fn on_initialize(now: BlockNumberFor<T>) -> Weight {
+ // first, calculate the main phase switches thresholds.
+ let unsigned_deadline = T::UnsignedPhase::get();
+ let signed_validation_deadline =
+ T::SignedValidationPhase::get().saturating_add(unsigned_deadline);
+ let signed_deadline = T::SignedPhase::get().saturating_add(signed_validation_deadline);
+ let snapshot_deadline = signed_deadline.saturating_add(T::Pages::get().into());
+
+ let next_election = T::DataProvider::next_election_prediction(now)
+ .saturating_sub(T::Lookahead::get())
+ .max(now);
+ let remaining_blocks = next_election.saturating_sub(now);
+ let current_phase = Self::current_phase();
+
+ log!(
+ trace,
+ "current phase {:?}, next election {:?}, remaining: {:?}, deadlines: [snapshot {:?}, signed {:?}, signed_validation {:?}, unsigned {:?}]",
+ current_phase,
+ next_election,
+ remaining_blocks,
+ snapshot_deadline,
+ signed_deadline,
+ signed_validation_deadline,
+ unsigned_deadline,
+ );
+
+ match current_phase {
+ // start and continue snapshot.
+ Phase::Off if remaining_blocks <= snapshot_deadline => {
+ let remaining_pages = Self::msp();
+ Self::create_targets_snapshot().defensive_unwrap_or_default();
+ Self::create_voters_snapshot_paged(remaining_pages)
+ .defensive_unwrap_or_default();
+ Self::phase_transition(Phase::Snapshot(remaining_pages));
+ T::WeightInfo::on_initialize_into_snapshot_msp()
+ },
+ Phase::Snapshot(x) if x > 0 => {
+ // we don't check block numbers here, snapshot creation is mandatory.
+ let remaining_pages = x.saturating_sub(1);
+ Self::create_voters_snapshot_paged(remaining_pages).unwrap();
+ Self::phase_transition(Phase::Snapshot(remaining_pages));
+ T::WeightInfo::on_initialize_into_snapshot_rest()
+ },
+
+ // start signed.
+ Phase::Snapshot(0)
+ if remaining_blocks <= signed_deadline &&
+ remaining_blocks > signed_validation_deadline =>
+ {
+ // NOTE: if signed-phase length is zero, second part of the if-condition fails.
+ // TODO: even though we have the integrity test, what if we open the signed
+ // phase, and there's not enough blocks to finalize it? that can happen under
+ // any circumstance and we should deal with it.
+ Self::phase_transition(Phase::Signed);
+ T::WeightInfo::on_initialize_into_signed()
+ },
+
+ // start signed verification.
+ Phase::Signed
+ if remaining_blocks <= signed_validation_deadline &&
+ remaining_blocks > unsigned_deadline =>
+ {
+ // Start verification of the signed stuff.
+ Self::phase_transition(Phase::SignedValidation(now));
+ // we don't do anything else here. We expect the signed sub-pallet to handle
+ // whatever else needs to be done.
+ T::WeightInfo::on_initialize_into_signed_validation()
+ },
+
+ // start unsigned
+ Phase::Signed | Phase::SignedValidation(_) | Phase::Snapshot(0)
+ if remaining_blocks <= unsigned_deadline && remaining_blocks > Zero::zero() =>
+ {
+ Self::phase_transition(Phase::Unsigned(now));
+ T::WeightInfo::on_initialize_into_unsigned()
+ },
+ _ => T::WeightInfo::on_initialize_nothing(),
+ }
+ }
+
+ fn integrity_test() {
+ use sp_std::mem::size_of;
+ // The index type of both voters and targets need to be smaller than that of usize (very
+ // unlikely to be the case, but anyhow).
+ assert!(size_of::<SolutionVoterIndexOf<T::MinerConfig>>() <= size_of::<usize>());
+ assert!(size_of::<SolutionTargetIndexOf<T::MinerConfig>>() <= size_of::<usize>());
+
+ // also, because `VoterSnapshotPerBlock` and `TargetSnapshotPerBlock` are in u32, we
+ // assert that both of these types are smaller than u32 as well.
+ assert!(size_of::<SolutionVoterIndexOf<T::MinerConfig>>() <= size_of::<u32>());
+ assert!(size_of::<SolutionTargetIndexOf<T::MinerConfig>>() <= size_of::<u32>());
+
+ let pages_bn: BlockNumberFor<T> = T::Pages::get().into();
+ // pages must be at least 1.
+ assert!(T::Pages::get() > 0);
+
+ // pages + the amount of Lookahead that we expect shall not be more than the length of
+ // any phase.
+ let lookahead = T::Lookahead::get();
+ assert!(pages_bn + lookahead < T::SignedPhase::get());
+ assert!(pages_bn + lookahead < T::UnsignedPhase::get());
+
+ // Based on the requirements of [`sp_npos_elections::Assignment::try_normalize`].
+ let max_vote: usize = <SolutionOf<T::MinerConfig> as NposSolution>::LIMIT;
+
+ // 2. Maximum sum of [SolutionAccuracy; 16] must fit into `UpperOf<OffchainAccuracy>`.
+ let maximum_chain_accuracy: Vec<UpperOf<SolutionAccuracyOf<T::MinerConfig>>> = (0..
+ max_vote)
+ .map(|_| {
+ <UpperOf<SolutionAccuracyOf<T::MinerConfig>>>::from(
+ <SolutionAccuracyOf<T::MinerConfig>>::one().deconstruct(),
+ )
+ })
+ .collect();
+ let _: UpperOf<SolutionAccuracyOf<T::MinerConfig>> = maximum_chain_accuracy
+ .iter()
+ .fold(Zero::zero(), |acc, x| acc.checked_add(x).unwrap());
+
+ // We only accept data provider who's maximum votes per voter matches our
+ // `T::Solution`'s `LIMIT`.
+ //
+ // NOTE that this pallet does not really need to enforce this in runtime. The
+ // solution cannot represent any voters more than `LIMIT` anyhow.
+ assert_eq!(
+ <T::DataProvider as ElectionDataProvider>::MaxVotesPerVoter::get(),
+ <SolutionOf<T::MinerConfig> as NposSolution>::LIMIT as u32,
+ );
+
+ // The duration of the signed validation phase should be such that at least one solution
+ // can be verified.
+ assert!(
+ T::SignedValidationPhase::get() >= T::Pages::get().into(),
+ "signed validation phase should be at least as long as the number of pages."
+ );
+ }
+
+ #[cfg(feature = "try-runtime")]
+ fn try_state(now: BlockNumberFor<T>) -> Result<(), sp_runtime::TryRuntimeError> {
+ Self::do_try_state(now).map_err(Into::into)
+ }
+ }
+
+ #[pallet::event]
+ #[pallet::generate_deposit(pub(super) fn deposit_event)]
+ pub enum Event<T: Config> {
+ /// A phase transition happened. Only checks major changes in the variants, not minor inner
+ /// values.
+ PhaseTransitioned {
+ /// the source phase
+ from: Phase<BlockNumberFor<T>>,
+ /// The target phase
+ to: Phase<BlockNumberFor<T>>,
+ },
+ }
+
+ /// Error of the pallet that can be returned in response to dispatches.
+ #[pallet::error]
+ pub enum Error<T> {
+ /// Triggering the `Fallback` failed.
+ Fallback,
+ /// Unexpected phase
+ UnexpectedPhase,
+ /// Snapshot was unavailable.
+ Snapshot,
+ }
+
+ /// Common errors in all sub-pallets and miner.
+ #[derive(PartialEq, Eq, Clone, Encode, Decode, Debug)]
+ pub enum CommonError {
+ /// Submission is too early (or too late, depending on your point of reference).
+ EarlySubmission,
+ /// The round counter is wrong.
+ WrongRound,
+ /// Submission is too weak to be considered an improvement.
+ WeakSubmission,
+ /// Wrong number of pages in the solution.
+ WrongPageCount,
+ /// Wrong number of winners presented.
+ WrongWinnerCount,
+ /// The snapshot fingerprint is not a match. The solution is likely outdated.
+ WrongFingerprint,
+ /// Snapshot was not available.
+ Snapshot,
+ }
+
+ /// Internal counter for the number of rounds.
+ ///
+ /// This is useful for de-duplication of transactions submitted to the pool, and general
+ /// diagnostics of the pallet.
+ ///
+ /// This is merely incremented once per every time that an upstream `elect` is called.
+ #[pallet::storage]
+ #[pallet::getter(fn round)]
+ pub type Round<T: Config> = StorageValue<_, u32, ValueQuery>;
+
+ /// Current phase.
+ #[pallet::storage]
+ #[pallet::getter(fn current_phase)]
+ pub type CurrentPhase<T: Config> = StorageValue<_, Phase<BlockNumberFor<T>>, ValueQuery>;
+
+ /// Wrapper struct for working with snapshots.
+ ///
+ /// It manages the following storage items:
+ ///
+ /// - `DesiredTargets`: The number of targets that we wish to collect.
+ /// - `PagedVoterSnapshot`: Paginated map of voters.
+ /// - `PagedVoterSnapshotHash`: Hash of the aforementioned.
+ /// - `PagedTargetSnapshot`: Paginated map of targets.
+ /// - `PagedTargetSnapshotHash`: Hash of the aforementioned.
+ ///
+ /// ### Invariants
+ ///
+ /// The following invariants must be met at **all times** for this storage item to be "correct".
+ ///
+ /// - `PagedVoterSnapshotHash` must always contain the correct the same number of keys, and the
+ /// corresponding hash of the `PagedVoterSnapshot`.
+ /// - `PagedTargetSnapshotHash` must always contain the correct the same number of keys, and the
+ /// corresponding hash of the `PagedTargetSnapshot`.
+ ///
+ /// - If any page from the paged voters/targets exists, then the aforementioned (desired
+ /// targets) must also exist.
+ ///
+ /// The following invariants might need to hold based on the current phase.
+ ///
+ /// - If `Phase` IS `Snapshot(_)`, then partial voter/target pages must exist from `msp` to
+ /// `lsp` based on the inner value.
+ /// - If `Phase` IS `Off`, then, no snapshot must exist.
+ /// - In all other phases, the snapshot must FULLY exist.
+ pub(crate) struct Snapshot<T>(sp_std::marker::PhantomData<T>);
+ impl<T: Config> Snapshot<T> {
+ // ----------- mutable methods
+ pub(crate) fn set_desired_targets(d: u32) {
+ DesiredTargets::<T>::put(d);
+ }
+
+ pub(crate) fn set_targets(targets: BoundedVec<T::AccountId, T::TargetSnapshotPerBlock>) {
+ let hash = Self::write_storage_with_pre_allocate(
+ &PagedTargetSnapshot::<T>::hashed_key_for(Pallet::<T>::msp()),
+ targets,
+ );
+ PagedTargetSnapshotHash::<T>::insert(Pallet::<T>::msp(), hash);
+ }
+
+ pub(crate) fn set_voters(page: PageIndex, voters: VoterPageOf<T::MinerConfig>) {
+ let hash = Self::write_storage_with_pre_allocate(
+ &PagedVoterSnapshot::<T>::hashed_key_for(page),
+ voters,
+ );
+ PagedVoterSnapshotHash::<T>::insert(page, hash);
+ }
+
+ /// Destroy the entire snapshot.
+ ///
+ /// Should be called only once we transition to [`Phase::Off`].
+ pub(crate) fn kill() {
+ DesiredTargets::<T>::kill();
+ clear_paged_map!(PagedVoterSnapshot::<T>);
+ clear_paged_map!(PagedVoterSnapshotHash::<T>);
+ clear_paged_map!(PagedTargetSnapshot::<T>);
+ clear_paged_map!(PagedTargetSnapshotHash::<T>);
+ }
+
+ // ----------- non-mutables
+ pub(crate) fn desired_targets() -> Option<u32> {
+ DesiredTargets::<T>::get()
+ }
+
+ pub(crate) fn voters(page: PageIndex) -> Option<VoterPageOf<T::MinerConfig>> {
+ PagedVoterSnapshot::<T>::get(page)
+ }
+
+ pub(crate) fn targets() -> Option<BoundedVec<T::AccountId, T::TargetSnapshotPerBlock>> {
+ // NOTE: targets always have one index, which is 0, aka lsp.
+ PagedTargetSnapshot::<T>::get(Pallet::<T>::msp())
+ }
+
+ /// Get a fingerprint of the snapshot, from all the hashes that are stored for each page of
+ /// the snapshot.
+ ///
+ /// This is computed as: `(target_hash, voter_hash_n, voter_hash_(n-1), ..., voter_hash_0)`
+ /// where `n` is `T::Pages - 1`. In other words, it is the concatenated hash of targets, and
+ /// voters, from `msp` to `lsp`.
+ pub fn fingerprint() -> T::Hash {
+ let mut hashed_target_and_voters =
+ Self::targets_hash().unwrap_or_default().as_ref().to_vec();
+ let hashed_voters = (Pallet::<T>::msp()..=Pallet::<T>::lsp())
+ .map(|i| PagedVoterSnapshotHash::<T>::get(i).unwrap_or_default())
+ .flat_map(|hash| <T::Hash as AsRef<[u8]>>::as_ref(&hash).to_owned())
+ .collect::<Vec<u8>>();
+ hashed_target_and_voters.extend(hashed_voters);
+ T::Hashing::hash(&hashed_target_and_voters)
+ }
+
+ fn write_storage_with_pre_allocate<E: Encode>(key: &[u8], data: E) -> T::Hash {
+ let size = data.encoded_size();
+ let mut buffer = Vec::with_capacity(size);
+ data.encode_to(&mut buffer);
+
+ let hash = T::Hashing::hash(&buffer);
+
+ // do some checks.
+ debug_assert_eq!(buffer, data.encode());
+ // buffer should have not re-allocated since.
+ debug_assert!(buffer.len() == size && size == buffer.capacity());
+ sp_io::storage::set(key, &buffer);
+
+ hash
+ }
+
+ pub(crate) fn targets_hash() -> Option<T::Hash> {
+ PagedTargetSnapshotHash::<T>::get(Pallet::<T>::msp())
+ }
+ }
+
+ #[allow(unused)]
+ #[cfg(any(test, feature = "runtime-benchmarks", feature = "try-runtime"))]
+ impl<T: Config> Snapshot<T> {
+ pub(crate) fn ensure_snapshot(
+ exists: bool,
+ mut up_to_page: PageIndex,
+ ) -> Result<(), &'static str> {
+ up_to_page = up_to_page.min(T::Pages::get());
+ // NOTE: if someday we split the snapshot taking of voters(msp) and targets into two
+ // different blocks, then this assertion becomes obsolete.
+ ensure!(up_to_page > 0, "can't check snapshot up to page 0");
+
+ // if any number of pages supposed to exist, these must also exist.
+ ensure!(exists ^ Self::desired_targets().is_none(), "desired target mismatch");
+ ensure!(exists ^ Self::targets().is_none(), "targets mismatch");
+ ensure!(exists ^ Self::targets_hash().is_none(), "targets hash mismatch");
+
+ // and the hash is correct.
+ if let Some(targets) = Self::targets() {
+ let hash = Self::targets_hash().expect("must exist; qed");
+ ensure!(hash == T::Hashing::hash(&targets.encode()), "targets hash mismatch");
+ }
+
+ // ensure that voter pages that should exist, indeed to exist..
+ let mut sum_existing_voters = 0;
+ for p in (crate::Pallet::<T>::lsp()..=crate::Pallet::<T>::msp())
+ .rev()
+ .take(up_to_page as usize)
+ {
+ ensure!(
+ (exists ^ Self::voters(p).is_none()) &&
+ (exists ^ Self::voters_hash(p).is_none()),
+ "voter page existence mismatch"
+ );
+
+ if let Some(voters_page) = Self::voters(p) {
+ sum_existing_voters = sum_existing_voters.saturating_add(voters_page.len());
+ let hash = Self::voters_hash(p).expect("must exist; qed");
+ ensure!(hash == T::Hashing::hash(&voters_page.encode()), "voter hash mismatch");
+ }
+ }
+
+ // ..and those that should not exist, indeed DON'T.
+ for p in (crate::Pallet::<T>::lsp()..=crate::Pallet::<T>::msp())
+ .take((T::Pages::get() - up_to_page) as usize)
+ {
+ ensure!(
+ (exists ^ Self::voters(p).is_some()) &&
+ (exists ^ Self::voters_hash(p).is_some()),
+ "voter page non-existence mismatch"
+ );
+ }
+
+ Ok(())
+ }
+
+ pub(crate) fn ensure_full_snapshot() -> Result<(), &'static str> {
+ // if any number of pages supposed to exist, these must also exist.
+ ensure!(Self::desired_targets().is_some(), "desired target mismatch");
+ ensure!(Self::targets_hash().is_some(), "targets hash mismatch");
+ ensure!(
+ Self::targets_decode_len().unwrap_or_default() as u32 ==
+ T::TargetSnapshotPerBlock::get(),
+ "targets decode length mismatch"
+ );
+
+ // ensure that voter pages that should exist, indeed to exist..
+ for p in crate::Pallet::<T>::lsp()..=crate::Pallet::<T>::msp() {
+ ensure!(
+ Self::voters_hash(p).is_some() &&
+ Self::voters_decode_len(p).unwrap_or_default() as u32 ==
+ T::VoterSnapshotPerBlock::get(),
+ "voter page existence mismatch"
+ );
+ }
+
+ Ok(())
+ }
+
+ pub(crate) fn voters_decode_len(page: PageIndex) -> Option<usize> {
+ PagedVoterSnapshot::<T>::decode_len(page)
+ }
+
+ pub(crate) fn targets_decode_len() -> Option<usize> {
+ PagedTargetSnapshot::<T>::decode_len(Pallet::<T>::msp())
+ }
+
+ pub(crate) fn voters_hash(page: PageIndex) -> Option<T::Hash> {
+ PagedVoterSnapshotHash::<T>::get(page)
+ }
+
+ pub(crate) fn sanity_check() -> Result<(), &'static str> {
+ // check the snapshot existence based on the phase. This checks all of the needed
+ // conditions except for the metadata values.
+ let _ = match Pallet::<T>::current_phase() {
+ // no page should exist in this phase.
+ Phase::Off => Self::ensure_snapshot(false, T::Pages::get()),
+ // exact number of pages must exist in this phase.
+ Phase::Snapshot(p) => Self::ensure_snapshot(true, T::Pages::get() - p),
+ // full snapshot must exist in these phases.
+ Phase::Emergency |
+ Phase::Signed |
+ Phase::SignedValidation(_) |
+ Phase::Export(_) |
+ Phase::Unsigned(_) => Self::ensure_snapshot(true, T::Pages::get()),
+ // cannot assume anything. We might halt at any point.
+ Phase::Halted => Ok(()),
+ }?;
+
+ Ok(())
+ }
+ }
+
+ #[cfg(test)]
+ impl<T: Config> Snapshot<T> {
+ pub(crate) fn voter_pages() -> PageIndex {
+ use sp_runtime::SaturatedConversion;
+ PagedVoterSnapshot::<T>::iter().count().saturated_into::<PageIndex>()
+ }
+
+ pub(crate) fn target_pages() -> PageIndex {
+ use sp_runtime::SaturatedConversion;
+ PagedTargetSnapshot::<T>::iter().count().saturated_into::<PageIndex>()
+ }
+
+ pub(crate) fn voters_iter_flattened() -> impl Iterator<Item = VoterOf<T::MinerConfig>> {
+ let key_range =
+ (crate::Pallet::<T>::lsp()..=crate::Pallet::<T>::msp()).collect::<Vec<_>>();
+ key_range
+ .into_iter()
+ .flat_map(|k| PagedVoterSnapshot::<T>::get(k).unwrap_or_default())
+ }
+
+ pub(crate) fn remove_voter_page(page: PageIndex) {
+ PagedVoterSnapshot::<T>::remove(page);
+ }
+
+ pub(crate) fn kill_desired_targets() {
+ DesiredTargets::<T>::kill();
+ }
+
+ pub(crate) fn remove_target_page() {
+ PagedTargetSnapshot::<T>::remove(Pallet::<T>::msp());
+ }
+
+ pub(crate) fn remove_target(at: usize) {
+ PagedTargetSnapshot::<T>::mutate(crate::Pallet::<T>::msp(), |maybe_targets| {
+ if let Some(targets) = maybe_targets {
+ targets.remove(at);
+ // and update the hash.
+ PagedTargetSnapshotHash::<T>::insert(
+ crate::Pallet::<T>::msp(),
+ T::Hashing::hash(&targets.encode()),
+ )
+ } else {
+ unreachable!();
+ }
+ })
+ }
+ }
+
+ /// Desired number of targets to elect for this round.
+ #[pallet::storage]
+ type DesiredTargets<T> = StorageValue<_, u32>;
+ /// Paginated voter snapshot. At most [`T::Pages`] keys will exist.
+ #[pallet::storage]
+ type PagedVoterSnapshot<T: Config> =
+ StorageMap<_, Twox64Concat, PageIndex, VoterPageOf<T::MinerConfig>>;
+ /// Same as [`PagedVoterSnapshot`], but it will store the hash of the snapshot.
+ ///
+ /// The hash is generated using [`frame_system::Config::Hashing`].
+ #[pallet::storage]
+ type PagedVoterSnapshotHash<T: Config> = StorageMap<_, Twox64Concat, PageIndex, T::Hash>;
+ /// Paginated target snapshot.
+ ///
+ /// For the time being, since we assume one pages of targets, at most ONE key will exist.
+ #[pallet::storage]
+ type PagedTargetSnapshot<T: Config> =
+ StorageMap<_, Twox64Concat, PageIndex, BoundedVec<T::AccountId, T::TargetSnapshotPerBlock>>;
+ /// Same as [`PagedTargetSnapshot`], but it will store the hash of the snapshot.
+ ///
+ /// The hash is generated using [`frame_system::Config::Hashing`].
+ #[pallet::storage]
+ type PagedTargetSnapshotHash<T: Config> = StorageMap<_, Twox64Concat, PageIndex, T::Hash>;
+
+ #[pallet::pallet]
+ pub struct Pallet<T>(PhantomData<T>);
+}
+
+impl<T: Config> Pallet<T> {
+ /// Returns the most significant page of the snapshot.
+ ///
+ /// Based on the contract of `ElectionDataProvider`, this is the first page that is filled.
+ fn msp() -> PageIndex {
+ T::Pages::get().checked_sub(1).defensive_unwrap_or_default()
+ }
+
+ /// Returns the least significant page of the snapshot.
+ ///
+ /// Based on the contract of `ElectionDataProvider`, this is the last page that is filled.
+ fn lsp() -> PageIndex {
+ Zero::zero()
+ }
+
+ pub(crate) fn phase_transition(to: Phase<BlockNumberFor<T>>) {
+ log!(debug, "transitioning phase from {:?} to {:?}", Self::current_phase(), to);
+ let from = Self::current_phase();
+ use sp_std::mem::discriminant;
+ if discriminant(&from) != discriminant(&to) {
+ Self::deposit_event(Event::PhaseTransitioned { from, to });
+ }
+ <CurrentPhase<T>>::put(to);
+ }
+
+ /// Perform all the basic checks that are independent of the snapshot. To be more specific,
+ /// these are all the checks that you can do without the need to read the massive blob of the
+ /// actual snapshot. This function only contains a handful of storage reads, with bounded size.
+ ///
+ /// A sneaky detail is that this does check the `DesiredTargets` aspect of the snapshot, but
+ /// neither of the large storage items.
+ ///
+ /// Moreover, we do optionally check the fingerprint of the snapshot, if provided.
+ ///
+ /// These complement a feasibility-check, which is exactly the opposite: snapshot-dependent
+ /// checks.
+ pub(crate) fn snapshot_independent_checks(
+ paged_solution: &PagedRawSolution<T::MinerConfig>,
+ maybe_snapshot_fingerprint: Option<T::Hash>,
+ ) -> Result<(), CommonError> {
+ // Note that the order of these checks are critical for the correctness and performance of
+ // `restore_or_compute_then_maybe_submit`. We want to make sure that we always check round
+ // first, so that if it has a wrong round, we can detect and delete it from the cache right
+ // from the get go.
+
+ // ensure round is current
+ ensure!(Self::round() == paged_solution.round, CommonError::WrongRound);
+
+ // ensure score is being improved, if the claim is even correct.
+ ensure!(
+ <T::Verifier as Verifier>::ensure_claimed_score_improves(paged_solution.score),
+ CommonError::WeakSubmission,
+ );
+
+ // ensure solution pages are no more than the snapshot
+ ensure!(
+ paged_solution.solution_pages.len().saturated_into::<PageIndex>() <= T::Pages::get(),
+ CommonError::WrongPageCount
+ );
+
+ // finally, check the winner count being correct.
+ if let Some(desired_targets) = Snapshot::<T>::desired_targets() {
+ ensure!(
+ desired_targets == paged_solution.winner_count_single_page_target_snapshot() as u32,
+ CommonError::WrongWinnerCount
+ )
+ }
+
+ // check the snapshot fingerprint, if asked for.
+ ensure!(
+ maybe_snapshot_fingerprint
+ .map_or(true, |snapshot_fingerprint| Snapshot::<T>::fingerprint() ==
+ snapshot_fingerprint),
+ CommonError::WrongFingerprint
+ );
+
+ Ok(())
+ }
+
+ /// Creates the target snapshot.
+ pub(crate) fn create_targets_snapshot() -> Result<(), ElectionError<T>> {
+ // if requested, get the targets as well.
+ Snapshot::<T>::set_desired_targets(
+ T::DataProvider::desired_targets().map_err(ElectionError::DataProvider)?,
+ );
+
+ let count = T::TargetSnapshotPerBlock::get();
+ let bounds = DataProviderBounds { count: Some(count.into()), size: None };
+ let targets: BoundedVec<_, T::TargetSnapshotPerBlock> =
+ T::DataProvider::electable_targets(bounds, 0)
+ .and_then(|v| v.try_into().map_err(|_| "try-into failed"))
+ .map_err(ElectionError::DataProvider)?;
+
+ let count = targets.len() as u32;
+ log!(debug, "created target snapshot with {} targets.", count);
+ Snapshot::<T>::set_targets(targets);
+
+ Ok(())
+ }
+
+ /// Creates the voter snapshot.
+ pub(crate) fn create_voters_snapshot_paged(
+ remaining: PageIndex,
+ ) -> Result<(), ElectionError<T>> {
+ let count = T::VoterSnapshotPerBlock::get();
+ let bounds = DataProviderBounds { count: Some(count.into()), size: None };
+ let voters: BoundedVec<_, T::VoterSnapshotPerBlock> =
+ T::DataProvider::electing_voters(bounds, remaining)
+ .and_then(|v| v.try_into().map_err(|_| "try-into failed"))
+ .map_err(ElectionError::DataProvider)?;
+
+ let count = voters.len() as u32;
+ Snapshot::<T>::set_voters(remaining, voters);
+ log!(debug, "created voter snapshot with {} voters, {} remaining.", count, remaining);
+
+ Ok(())
+ }
+
+ /// Perform the tasks to be done after a new `elect` has been triggered:
+ ///
+ /// 1. Increment round.
+ /// 2. Change phase to [`Phase::Off`]
+ /// 3. Clear all snapshot data.
+ pub(crate) fn rotate_round() {
+ // Inc round.
+ <Round<T>>::mutate(|r| *r += 1);
+
+ // Phase is off now.
+ Self::phase_transition(Phase::Off);
+
+ // Kill everything in the verifier.
+ T::Verifier::kill();
+
+ // Kill the snapshot.
+ Snapshot::<T>::kill();
+ }
+
+ /// Call fallback for the given page.
+ ///
+ /// This uses the [`ElectionProvider::bother`] to check if the fallback is actually going to do
+ /// anything. If so, it will re-collect the associated snapshot page and do the fallback. Else,
+ /// it will early return without touching the snapshot.
+ fn fallback_for_page(page: PageIndex) -> Result<BoundedSupportsOf<Self>, ElectionError<T>> {
+ use frame_election_provider_support::InstantElectionProvider;
+ let (voters, targets, desired_targets) = if T::Fallback::bother() {
+ (
+ Snapshot::<T>::voters(page).ok_or(ElectionError::Other("snapshot!"))?,
+ Snapshot::<T>::targets().ok_or(ElectionError::Other("snapshot!"))?,
+ Snapshot::<T>::desired_targets().ok_or(ElectionError::Other("snapshot!"))?,
+ )
+ } else {
+ (Default::default(), Default::default(), Default::default())
+ };
+ T::Fallback::instant_elect(voters.into_inner(), targets.into_inner(), desired_targets)
+ .map_err(|fe| ElectionError::Fallback(fe))
+ }
+
+ #[cfg(any(test, feature = "runtime-benchmarks", feature = "try-runtime"))]
+ pub(crate) fn do_try_state(_: BlockNumberFor<T>) -> Result<(), &'static str> {
+ Snapshot::<T>::sanity_check()
+ }
+}
+
+#[allow(unused)]
+#[cfg(any(feature = "runtime-benchmarks", test))]
+// helper code for testing and benchmarking
+impl<T> Pallet<T>
+where
+ T: Config + crate::signed::Config + crate::unsigned::Config + crate::verifier::Config,
+ BlockNumberFor<T>: From<u32>,
+{
+ /// A reasonable next election block number.
+ ///
+ /// This should be passed into `T::DataProvider::set_next_election` in benchmarking.
+ pub(crate) fn reasonable_next_election() -> u32 {
+ let signed: u32 = T::SignedPhase::get().saturated_into();
+ let unsigned: u32 = T::UnsignedPhase::get().saturated_into();
+ let signed_validation: u32 = T::SignedValidationPhase::get().saturated_into();
+ (T::Pages::get() + signed + unsigned + signed_validation) * 2
+ }
+
+ /// Progress blocks until the criteria is met.
+ pub(crate) fn roll_until_matches(criteria: impl FnOnce() -> bool + Copy) {
+ loop {
+ Self::roll_next(true, false);
+ if criteria() {
+ break
+ }
+ }
+ }
+
+ /// Progress blocks until one block before the criteria is met.
+ pub(crate) fn run_until_before_matches(criteria: impl FnOnce() -> bool + Copy) {
+ use frame_support::storage::TransactionOutcome;
+ loop {
+ let should_break = frame_support::storage::with_transaction(
+ || -> TransactionOutcome<Result<_, DispatchError>> {
+ Pallet::<T>::roll_next(true, false);
+ if criteria() {
+ TransactionOutcome::Rollback(Ok(true))
+ } else {
+ TransactionOutcome::Commit(Ok(false))
+ }
+ },
+ )
+ .unwrap();
+
+ if should_break {
+ break
+ }
+ }
+ }
+
+ pub(crate) fn roll_to_signed_and_mine_full_solution() -> PagedRawSolution<T::MinerConfig> {
+ use unsigned::miner::OffchainWorkerMiner;
+ Self::roll_until_matches(|| Self::current_phase() == Phase::Signed);
+ // ensure snapshot is full.
+ crate::Snapshot::<T>::ensure_full_snapshot().expect("Snapshot is not full");
+ OffchainWorkerMiner::<T>::mine_solution(T::Pages::get(), false).unwrap()
+ }
+
+ pub(crate) fn submit_full_solution(
+ PagedRawSolution { score, solution_pages, .. }: PagedRawSolution<T::MinerConfig>,
+ ) {
+ use frame_system::RawOrigin;
+ use sp_std::boxed::Box;
+ use types::Pagify;
+
+ // register alice
+ let alice = crate::Pallet::<T>::funded_account("alice", 0);
+ signed::Pallet::<T>::register(RawOrigin::Signed(alice.clone()).into(), score).unwrap();
+
+ // submit pages
+ solution_pages
+ .pagify(T::Pages::get())
+ .map(|(index, page)| {
+ signed::Pallet::<T>::submit_page(
+ RawOrigin::Signed(alice.clone()).into(),
+ index,
+ Some(Box::new(page.clone())),
+ )
+ })
+ .collect::<Result<Vec<_>, _>>()
+ .unwrap();
+ }
+
+ pub(crate) fn roll_to_signed_and_submit_full_solution() {
+ Self::submit_full_solution(Self::roll_to_signed_and_mine_full_solution());
+ }
+
+ fn funded_account(seed: &'static str, index: u32) -> T::AccountId {
+ use frame_benchmarking::whitelist;
+ use frame_support::traits::fungible::{Inspect, Mutate};
+ let who: T::AccountId = frame_benchmarking::account(seed, index, 777);
+ whitelist!(who);
+ let balance = T::Currency::minimum_balance() * 10000u32.into();
+ T::Currency::mint_into(&who, balance).unwrap();
+ who
+ }
+
+ /// Roll all pallets forward, for the given number of blocks.
+ pub(crate) fn roll_to(n: BlockNumberFor<T>, with_signed: bool, try_state: bool) {
+ let now = frame_system::Pallet::<T>::block_number();
+ assert!(n > now, "cannot roll to current or past block");
+ let one: BlockNumberFor<T> = 1u32.into();
+ let mut i = now + one;
+ while i <= n {
+ frame_system::Pallet::<T>::set_block_number(i);
+
+ Pallet::<T>::on_initialize(i);
+ verifier::Pallet::<T>::on_initialize(i);
+ unsigned::Pallet::<T>::on_initialize(i);
+
+ if with_signed {
+ signed::Pallet::<T>::on_initialize(i);
+ }
+
+ // invariants must hold at the end of each block.
+ if try_state {
+ Pallet::<T>::do_try_state(i).unwrap();
+ verifier::Pallet::<T>::do_try_state(i).unwrap();
+ unsigned::Pallet::<T>::do_try_state(i).unwrap();
+ signed::Pallet::<T>::do_try_state(i).unwrap();
+ }
+
+ i += one;
+ }
+ }
+
+ /// Roll to next block.
+ pub(crate) fn roll_next(with_signed: bool, try_state: bool) {
+ Self::roll_to(
+ frame_system::Pallet::<T>::block_number() + 1u32.into(),
+ with_signed,
+ try_state,
+ );
+ }
+}
+
+impl<T: Config> ElectionProvider for Pallet<T> {
+ type AccountId = T::AccountId;
+ type BlockNumber = BlockNumberFor<T>;
+ type Error = ElectionError<T>;
+ type DataProvider = T::DataProvider;
+ type Pages = T::Pages;
+ type MaxWinnersPerPage = <T::Verifier as Verifier>::MaxWinnersPerPage;
+ type MaxBackersPerWinner = <T::Verifier as Verifier>::MaxBackersPerWinner;
+
+ fn elect(remaining: PageIndex) -> Result<BoundedSupportsOf<Self>, Self::Error> {
+ if !Self::ongoing() {
+ return Err(ElectionError::NotOngoing);
+ }
+
+ let result = T::Verifier::get_queued_solution_page(remaining)
+ .ok_or(ElectionError::SupportPageNotAvailable)
+ .or_else(|err: ElectionError<T>| {
+ log!(
+ warn,
+ "primary election for page {} failed due to: {:?}, trying fallback",
+ remaining,
+ err,
+ );
+ Self::fallback_for_page(remaining)
+ })
+ .map_err(|err| {
+ // if any pages returns an error, we go into the emergency phase and don't do
+ // anything else anymore. This will prevent any new submissions to signed and
+ // unsigned pallet, and thus the verifier will also be almost stuck, except for the
+ // submission of emergency solutions.
+ log!(warn, "primary and fallback ({:?}) failed for page {:?}", err, remaining);
+ err
+ })
+ .map(|supports| {
+ // convert to bounded
+ supports.into()
+ });
+
+ // if fallback has possibly put us into the emergency phase, don't do anything else.
+ if CurrentPhase::<T>::get().is_emergency() && result.is_err() {
+ log!(error, "Emergency phase triggered, halting the election.");
+ } else {
+ if remaining.is_zero() {
+ log!(info, "receiving last call to elect(0), rotating round");
+ Self::rotate_round()
+ } else {
+ Self::phase_transition(Phase::Export(remaining))
+ }
+ }
+
+ result
+ }
+
+ fn ongoing() -> bool {
+ match <CurrentPhase<T>>::get() {
+ Phase::Off | Phase::Halted => false,
+ Phase::Signed |
+ Phase::SignedValidation(_) |
+ Phase::Unsigned(_) |
+ Phase::Snapshot(_) |
+ Phase::Emergency |
+ Phase::Export(_) => true,
+ }
+ }
+}
+
+#[cfg(test)]
+mod phase_rotation {
+ use super::{Event, *};
+ use crate::{mock::*, Phase};
+ use frame_election_provider_support::ElectionProvider;
+ use frame_support::traits::Hooks;
+
+ #[test]
+ fn single_page() {
+ ExtBuilder::full()
+ .pages(1)
+ .fallback_mode(FallbackModes::Onchain)
+ .build_and_execute(|| {
+ // 0 -------- 14 15 --------- 20 ------------- 25 ---------- 30
+ // | | | | |
+ // Snapshot Signed SignedValidation Unsigned elect()
+
+ assert_eq!(System::block_number(), 0);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(false, 1));
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(4);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(13);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+
+ roll_to(14);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(0));
+
+ roll_to(15);
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(0) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed }
+ ]
+ );
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 1));
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(19);
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 1));
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(20);
+ assert_eq!(MultiBlock::current_phase(), Phase::SignedValidation(20));
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(0) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned {
+ from: Phase::Signed,
+ to: Phase::SignedValidation(20)
+ }
+ ],
+ );
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 1));
+
+ roll_to(24);
+ assert_eq!(MultiBlock::current_phase(), Phase::SignedValidation(20));
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 1));
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(25);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(0) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned {
+ from: Phase::Signed,
+ to: Phase::SignedValidation(20)
+ },
+ Event::PhaseTransitioned {
+ from: Phase::SignedValidation(20),
+ to: Phase::Unsigned(25)
+ }
+ ],
+ );
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 1));
+
+ roll_to(30);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 1));
+
+ // We close when upstream tells us to elect.
+ roll_to(32);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 1));
+
+ MultiBlock::elect(0).unwrap();
+
+ assert!(MultiBlock::current_phase().is_off());
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(false, 1));
+ assert_eq!(MultiBlock::round(), 1);
+
+ roll_to(43);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+
+ roll_to(44);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(0));
+
+ roll_to(45);
+ assert!(MultiBlock::current_phase().is_signed());
+
+ roll_to(50);
+ assert!(MultiBlock::current_phase().is_signed_validation_open_at(50));
+
+ roll_to(55);
+ assert!(MultiBlock::current_phase().is_unsigned_open_at(55));
+ })
+ }
+
+ #[test]
+ fn multi_page_2() {
+ ExtBuilder::full()
+ .pages(2)
+ .fallback_mode(FallbackModes::Onchain)
+ .build_and_execute(|| {
+ // 0 -------13 14 15 ------- 20 ---- 25 ------- 30
+ // | | | | |
+ // Snapshot Signed SigValid Unsigned Elect
+
+ assert_eq!(System::block_number(), 0);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(false, 2));
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(4);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(12);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+
+ roll_to(13);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(1));
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 1));
+
+ roll_to(14);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(0));
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 2));
+
+ roll_to(15);
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(1) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed }
+ ]
+ );
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 2));
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(19);
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 2));
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(20);
+ assert_eq!(MultiBlock::current_phase(), Phase::SignedValidation(20));
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(1) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned {
+ from: Phase::Signed,
+ to: Phase::SignedValidation(20)
+ }
+ ],
+ );
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 2));
+
+ roll_to(24);
+ assert_eq!(MultiBlock::current_phase(), Phase::SignedValidation(20));
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 2));
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(25);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(1) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned {
+ from: Phase::Signed,
+ to: Phase::SignedValidation(20)
+ },
+ Event::PhaseTransitioned {
+ from: Phase::SignedValidation(20),
+ to: Phase::Unsigned(25)
+ }
+ ],
+ );
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 2));
+
+ roll_to(29);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 2));
+
+ roll_to(30);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 2));
+
+ // We close when upstream tells us to elect.
+ roll_to(32);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+
+ MultiBlock::elect(0).unwrap(); // and even this one's coming from the fallback.
+ assert!(MultiBlock::current_phase().is_off());
+
+ // all snapshots are gone.
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(false, 2));
+ assert_eq!(MultiBlock::round(), 1);
+
+ roll_to(42);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+
+ roll_to(43);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(1));
+
+ roll_to(44);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(0));
+
+ roll_to(45);
+ assert!(MultiBlock::current_phase().is_signed());
+
+ roll_to(50);
+ assert!(MultiBlock::current_phase().is_signed_validation_open_at(50));
+
+ roll_to(55);
+ assert!(MultiBlock::current_phase().is_unsigned_open_at(55));
+ })
+ }
+
+ #[test]
+ fn multi_page_3() {
+ ExtBuilder::full()
+ .pages(3)
+ .fallback_mode(FallbackModes::Onchain)
+ .build_and_execute(|| {
+ // 0 ------- 12 13 14 15 ----------- 20 ---------25 ------- 30
+ // | | | | |
+ // Snapshot Signed SignedValidation Unsigned Elect
+
+ assert_eq!(System::block_number(), 0);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(false, 3));
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(4);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(11);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+
+ roll_to(12);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(2));
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 1));
+
+ roll_to(13);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(1));
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 2));
+
+ roll_to(14);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(0));
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 3));
+
+ roll_to(15);
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed }
+ ]
+ );
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(19);
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(20);
+ assert_eq!(MultiBlock::current_phase(), Phase::SignedValidation(20));
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned {
+ from: Phase::Signed,
+ to: Phase::SignedValidation(20)
+ }
+ ]
+ );
+
+ roll_to(24);
+ assert_eq!(MultiBlock::current_phase(), Phase::SignedValidation(20));
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(25);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned {
+ from: Phase::Signed,
+ to: Phase::SignedValidation(20)
+ },
+ Event::PhaseTransitioned {
+ from: Phase::SignedValidation(20),
+ to: Phase::Unsigned(25)
+ }
+ ]
+ );
+
+ roll_to(29);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+
+ roll_to(30);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+
+ // We close when upstream tells us to elect.
+ roll_to(32);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+
+ MultiBlock::elect(0).unwrap();
+ assert!(MultiBlock::current_phase().is_off());
+
+ // all snapshots are gone.
+ assert_none_snapshot();
+ assert_eq!(MultiBlock::round(), 1);
+
+ roll_to(41);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+
+ roll_to(42);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(2));
+
+ roll_to(43);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(1));
+
+ roll_to(44);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(0));
+
+ roll_to(45);
+ assert!(MultiBlock::current_phase().is_signed());
+
+ roll_to(50);
+ assert!(MultiBlock::current_phase().is_signed_validation_open_at(50));
+
+ roll_to(55);
+ assert!(MultiBlock::current_phase().is_unsigned_open_at(55));
+ })
+ }
+
+ #[test]
+ fn multi_with_lookahead() {
+ ExtBuilder::full()
+ .pages(3)
+ .lookahead(2)
+ .fallback_mode(FallbackModes::Onchain)
+ .build_and_execute(|| {
+ // 0 ------- 10 11 12 13 ----------- 17 ---------22 ------- 27
+ // | | | | |
+ // Snapshot Signed SignedValidation Unsigned Elect
+
+ assert_eq!(System::block_number(), 0);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ assert_none_snapshot();
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(4);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(9);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+
+ roll_to(10);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(2));
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 1));
+
+ roll_to(11);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(1));
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 2));
+
+ roll_to(12);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(0));
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, 3));
+
+ roll_to(13);
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed }
+ ]
+ );
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(17);
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+ assert_full_snapshot();
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(18);
+ assert_eq!(MultiBlock::current_phase(), Phase::SignedValidation(18));
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned {
+ from: Phase::Signed,
+ to: Phase::SignedValidation(18)
+ }
+ ]
+ );
+
+ roll_to(22);
+ assert_eq!(MultiBlock::current_phase(), Phase::SignedValidation(18));
+ assert_full_snapshot();
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(23);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(23));
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned {
+ from: Phase::Signed,
+ to: Phase::SignedValidation(18)
+ },
+ Event::PhaseTransitioned {
+ from: Phase::SignedValidation(18),
+ to: Phase::Unsigned(23)
+ }
+ ]
+ );
+
+ roll_to(27);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(23));
+
+ roll_to(28);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(23));
+
+ // We close when upstream tells us to elect.
+ roll_to(30);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(23));
+
+ MultiBlock::elect(0).unwrap();
+ assert!(MultiBlock::current_phase().is_off());
+
+ // all snapshots are gone.
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(false, 3));
+ assert_eq!(MultiBlock::round(), 1);
+
+ roll_to(41 - 2);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+
+ roll_to(42 - 2);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(2));
+
+ roll_to(43 - 2);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(1));
+
+ roll_to(44 - 2);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(0));
+
+ roll_to(45 - 2);
+ assert!(MultiBlock::current_phase().is_signed());
+
+ roll_to(50 - 2);
+ assert!(MultiBlock::current_phase().is_signed_validation_open_at(50 - 2));
+
+ roll_to(55 - 2);
+ assert!(MultiBlock::current_phase().is_unsigned_open_at(55 - 2));
+ })
+ }
+
+ #[test]
+ fn no_unsigned_phase() {
+ ExtBuilder::full()
+ .pages(3)
+ .unsigned_phase(0)
+ .fallback_mode(FallbackModes::Onchain)
+ .build_and_execute(|| {
+ // 0 --------------------- 17 ------ 20 ---------25 ------- 30
+ // | | | | |
+ // Snapshot Signed SignedValidation Elect
+
+ assert_eq!(System::block_number(), 0);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ assert_none_snapshot();
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(4);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(17);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(2));
+ roll_to(18);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(1));
+ roll_to(19);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(0));
+
+ assert_full_snapshot();
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(20);
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+ roll_to(25);
+ assert_eq!(MultiBlock::current_phase(), Phase::SignedValidation(25));
+
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned {
+ from: Phase::Signed,
+ to: Phase::SignedValidation(25)
+ },
+ ]
+ );
+
+ // Signed validation can now be expanded until a call to `elect` comes
+ roll_to(27);
+ assert_eq!(MultiBlock::current_phase(), Phase::SignedValidation(25));
+ roll_to(32);
+ assert_eq!(MultiBlock::current_phase(), Phase::SignedValidation(25));
+
+ MultiBlock::elect(0).unwrap();
+ assert!(MultiBlock::current_phase().is_off());
+
+ // all snapshots are gone.
+ assert_none_snapshot();
+ assert_eq!(MultiBlock::round(), 1);
+ assert_ok!(signed::Submissions::<Runtime>::ensure_killed(0));
+ verifier::QueuedSolution::<Runtime>::assert_killed();
+ })
+ }
+
+ #[test]
+ fn no_signed_phase() {
+ ExtBuilder::full()
+ .pages(3)
+ .signed_phase(0, 0)
+ .fallback_mode(FallbackModes::Onchain)
+ .build_and_execute(|| {
+ // 0 ------------------------- 22 ------ 25 ------- 30
+ // | | |
+ // Snapshot Unsigned Elect
+
+ assert_eq!(System::block_number(), 0);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ assert_none_snapshot();
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(20);
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(22);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(2));
+ roll_to(23);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(1));
+ roll_to(24);
+ assert_eq!(MultiBlock::current_phase(), Phase::Snapshot(0));
+
+ assert_full_snapshot();
+ assert_eq!(MultiBlock::round(), 0);
+
+ roll_to(25);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned {
+ from: Phase::Snapshot(0),
+ to: Phase::Unsigned(25)
+ },
+ ]
+ );
+
+ // Unsigned can now be expanded until a call to `elect` comes
+ roll_to(27);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+ roll_to(32);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+
+ MultiBlock::elect(0).unwrap();
+ assert!(MultiBlock::current_phase().is_off());
+
+ // all snapshots are gone.
+ assert_none_snapshot();
+ assert_eq!(MultiBlock::round(), 1);
+ assert_ok!(signed::Submissions::<Runtime>::ensure_killed(0));
+ verifier::QueuedSolution::<Runtime>::assert_killed();
+ })
+ }
+
+ #[test]
+ #[should_panic]
+ fn no_any_phase() {
+ todo!()
+ }
+
+ #[test]
+ #[should_panic(
+ expected = "signed validation phase should be at least as long as the number of pages"
+ )]
+ fn incorrect_signed_validation_phase() {
+ ExtBuilder::full()
+ .pages(3)
+ .signed_validation_phase(2)
+ .build_and_execute(|| <MultiBlock as Hooks<BlockNumber>>::integrity_test())
+ }
+}
+
+#[cfg(test)]
+mod election_provider {
+ use super::*;
+ use crate::{mock::*, unsigned::miner::OffchainWorkerMiner, verifier::Verifier, Phase};
+ use frame_election_provider_support::{BoundedSupport, BoundedSupports, ElectionProvider};
+ use frame_support::{
+ assert_storage_noop, testing_prelude::bounded_vec, unsigned::ValidateUnsigned,
+ };
+
+ // This is probably the most important test of all, a basic, correct scenario. This test should
+ // be studied in detail, and all of the branches of how it can go wrong or diverge from the
+ // basic scenario assessed.
+ #[test]
+ fn multi_page_elect_simple_works() {
+ ExtBuilder::full().build_and_execute(|| {
+ roll_to_signed_open();
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+
+ // load a solution into the verifier
+ let paged = OffchainWorkerMiner::<Runtime>::mine_solution(Pages::get(), false).unwrap();
+ let score = paged.score;
+
+ // now let's submit this one by one, into the signed phase.
+ load_signed_for_verification(99, paged);
+
+ // now the solution should start being verified.
+ roll_to_signed_validation_open();
+
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned {
+ from: Phase::Signed,
+ to: Phase::SignedValidation(20)
+ }
+ ]
+ );
+ assert_eq!(verifier_events(), vec![]);
+
+ // there is no queued solution prior to the last page of the solution getting verified
+ assert_eq!(<Runtime as crate::Config>::Verifier::queued_score(), None);
+
+ // proceed until it is fully verified.
+ roll_next();
+ assert_eq!(verifier_events(), vec![verifier::Event::Verified(2, 2)]);
+
+ roll_next();
+ assert_eq!(
+ verifier_events(),
+ vec![verifier::Event::Verified(2, 2), verifier::Event::Verified(1, 2)]
+ );
+
+ roll_next();
+ assert_eq!(
+ verifier_events(),
+ vec![
+ verifier::Event::Verified(2, 2),
+ verifier::Event::Verified(1, 2),
+ verifier::Event::Verified(0, 2),
+ verifier::Event::Queued(score, None),
+ ]
+ );
+
+ // there is now a queued solution.
+ assert_eq!(<Runtime as crate::Config>::Verifier::queued_score(), Some(score));
+
+ // now let's go to unsigned phase, but we don't expect anything to happen there since we
+ // don't run OCWs.
+ roll_to_unsigned_open();
+
+ // pre-elect state
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+ assert_eq!(MultiBlock::round(), 0);
+ assert_full_snapshot();
+
+ // call elect for each page
+ let _paged_solution = (MultiBlock::lsp()..MultiBlock::msp())
+ .rev() // 2, 1, 0
+ .map(|page| {
+ MultiBlock::elect(page as PageIndex).unwrap();
+ if page == 0 {
+ assert!(MultiBlock::current_phase().is_off())
+ } else {
+ assert!(MultiBlock::current_phase().is_export())
+ }
+ })
+ .collect::<Vec<_>>();
+
+ // after the last elect, verifier is cleared,
+ verifier::QueuedSolution::<Runtime>::assert_killed();
+ // the phase is off,
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ // the round is incremented,
+ assert_eq!(Round::<Runtime>::get(), 1);
+ // and the snapshot is cleared,
+ assert_storage_noop!(Snapshot::<Runtime>::kill());
+ // signed pallet is clean.
+ // NOTE: in the future, if and when we add lazy cleanup to the signed pallet, this
+ // assertion might break.
+ assert_ok!(signed::Submissions::<Runtime>::ensure_killed(0));
+ });
+ }
+
+ #[test]
+ fn multi_page_elect_fast_track() {
+ ExtBuilder::full().build_and_execute(|| {
+ roll_to_signed_open();
+ let round = MultiBlock::round();
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+
+ // load a solution into the verifier
+ let paged = OffchainWorkerMiner::<Runtime>::mine_solution(Pages::get(), false).unwrap();
+ let score = paged.score;
+ load_signed_for_verification_and_start(99, paged, 0);
+
+ // there is no queued solution prior to the last page of the solution getting verified
+ assert_eq!(<Runtime as crate::Config>::Verifier::queued_score(), None);
+
+ // roll to the block it is finalized
+ roll_next();
+ roll_next();
+ roll_next();
+ assert_eq!(
+ verifier_events(),
+ vec![
+ verifier::Event::Verified(2, 2),
+ verifier::Event::Verified(1, 2),
+ verifier::Event::Verified(0, 2),
+ verifier::Event::Queued(score, None),
+ ]
+ );
+
+ // there is now a queued solution.
+ assert_eq!(<Runtime as crate::Config>::Verifier::queued_score(), Some(score));
+
+ // not much impact, just for the sane-ness of the test.
+ roll_to_unsigned_open();
+
+ // pre-elect state:
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+ assert_eq!(Round::<Runtime>::get(), 0);
+ assert_full_snapshot();
+
+ // there are 3 pages (indexes 2..=0), but we short circuit by just calling 0.
+ let _solution = crate::Pallet::<Runtime>::elect(0).unwrap();
+
+ // round is incremented.
+ assert_eq!(MultiBlock::round(), round + 1);
+ // after elect(0) is called, verifier is cleared,
+ verifier::QueuedSolution::<Runtime>::assert_killed();
+ // the phase is off,
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ // the round is incremented,
+ assert_eq!(Round::<Runtime>::get(), 1);
+ // the snapshot is cleared,
+ assert_none_snapshot();
+ // and signed pallet is clean.
+ assert_ok!(signed::Submissions::<Runtime>::ensure_killed(round));
+ });
+ }
+
+ #[test]
+ fn elect_does_not_finish_without_call_of_page_0() {
+ ExtBuilder::full().build_and_execute(|| {
+ roll_to_signed_open();
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+
+ // load a solution into the verifier
+ let paged = OffchainWorkerMiner::<Runtime>::mine_solution(Pages::get(), false).unwrap();
+ let score = paged.score;
+ load_signed_for_verification_and_start(99, paged, 0);
+
+ // there is no queued solution prior to the last page of the solution getting verified
+ assert_eq!(<Runtime as crate::Config>::Verifier::queued_score(), None);
+
+ // roll to the block it is finalized
+ roll_next();
+ roll_next();
+ roll_next();
+ assert_eq!(
+ verifier_events(),
+ vec![
+ verifier::Event::Verified(2, 2),
+ verifier::Event::Verified(1, 2),
+ verifier::Event::Verified(0, 2),
+ verifier::Event::Queued(score, None),
+ ]
+ );
+
+ // there is now a queued solution
+ assert_eq!(<Runtime as crate::Config>::Verifier::queued_score(), Some(score));
+
+ // not much impact, just for the sane-ness of the test.
+ roll_to_unsigned_open();
+
+ // pre-elect state:
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+ assert_eq!(Round::<Runtime>::get(), 0);
+ assert_full_snapshot();
+
+ // call elect for page 2 and 1, but NOT 0
+ let solutions = (1..=MultiBlock::msp())
+ .rev() // 2, 1
+ .map(|page| {
+ crate::Pallet::<Runtime>::elect(page as PageIndex).unwrap();
+ assert!(MultiBlock::current_phase().is_export());
+ })
+ .collect::<Vec<_>>();
+ assert_eq!(solutions.len(), 2);
+
+ // nothing changes from the prelect state, except phase is now export.
+ assert!(MultiBlock::current_phase().is_export());
+ assert_eq!(Round::<Runtime>::get(), 0);
+ assert_full_snapshot();
+ });
+ }
+
+ #[test]
+ fn when_passive_stay_in_phase_unsigned() {
+ ExtBuilder::full().build_and_execute(|| {
+ // once the unsigned phase starts, it will not be changed by on_initialize (something
+ // like `elect` must be called).
+ roll_to_unsigned_open();
+ for _ in 0..100 {
+ roll_next();
+ assert!(matches!(MultiBlock::current_phase(), Phase::Unsigned(_)));
+ }
+ });
+ }
+
+ #[test]
+ fn skip_unsigned_phase() {
+ ExtBuilder::full().build_and_execute(|| {
+ roll_to_signed_open();
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+ let round = MultiBlock::round();
+
+ // load a solution into the verifier
+ let paged = OffchainWorkerMiner::<Runtime>::mine_solution(Pages::get(), false).unwrap();
+
+ load_signed_for_verification_and_start_and_roll_to_verified(99, paged, 0);
+
+ // and right here, in the middle of the signed verification phase, we close the round.
+ // Everything should work fine.
+ assert_eq!(MultiBlock::current_phase(), Phase::SignedValidation(20));
+ assert_eq!(Round::<Runtime>::get(), 0);
+ assert_full_snapshot();
+
+ // fetch all pages.
+ let _paged_solution = (MultiBlock::lsp()..MultiBlock::msp())
+ .rev() // 2, 1, 0
+ .map(|page| {
+ MultiBlock::elect(page as PageIndex).unwrap();
+ if page == 0 {
+ assert!(MultiBlock::current_phase().is_off())
+ } else {
+ assert!(MultiBlock::current_phase().is_export())
+ }
+ })
+ .collect::<Vec<_>>();
+
+ // round is incremented.
+ assert_eq!(MultiBlock::round(), round + 1);
+ // after elect(0) is called, verifier is cleared,
+ verifier::QueuedSolution::<Runtime>::assert_killed();
+ // the phase is off,
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ // the snapshot is cleared,
+ assert_storage_noop!(Snapshot::<Runtime>::kill());
+ // and signed pallet is clean.
+ assert_ok!(signed::Submissions::<Runtime>::ensure_killed(round));
+ });
+ }
+
+ #[test]
+ fn call_to_elect_should_prevent_any_submission() {
+ ExtBuilder::full().build_and_execute(|| {
+ roll_to_signed_open();
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+
+ // load a solution into the verifier
+ let paged = OffchainWorkerMiner::<Runtime>::mine_solution(Pages::get(), false).unwrap();
+ load_signed_for_verification_and_start_and_roll_to_verified(99, paged, 0);
+
+ assert_eq!(MultiBlock::current_phase(), Phase::SignedValidation(20));
+
+ // fetch one page.
+ assert!(MultiBlock::elect(MultiBlock::msp()).is_ok());
+
+ // try submit one signed page:
+ assert_noop!(
+ SignedPallet::submit_page(RuntimeOrigin::signed(999), 0, Default::default()),
+ crate::signed::Error::<Runtime>::PhaseNotSigned,
+ );
+ assert_noop!(
+ SignedPallet::register(RuntimeOrigin::signed(999), Default::default()),
+ crate::signed::Error::<Runtime>::PhaseNotSigned,
+ );
+ assert_storage_noop!(assert!(<UnsignedPallet as ValidateUnsigned>::pre_dispatch(
+ &unsigned::Call::submit_unsigned { paged_solution: Default::default() }
+ )
+ .is_err()));
+ });
+ }
+
+ #[test]
+ fn multi_page_elect_fallback_works() {
+ ExtBuilder::full().fallback_mode(FallbackModes::Onchain).build_and_execute(|| {
+ roll_to_signed_open();
+
+ // same targets, but voters from page 2 (1, 2, 3, 4, see `mock/staking`).
+ assert_eq!(
+ MultiBlock::elect(2).unwrap(),
+ BoundedSupports(bounded_vec![
+ (10, BoundedSupport { total: 15, voters: bounded_vec![(1, 10), (4, 5)] }),
+ (
+ 40,
+ BoundedSupport {
+ total: 25,
+ voters: bounded_vec![(2, 10), (3, 10), (4, 5)]
+ }
+ )
+ ])
+ );
+ // page 1 of voters
+ assert_eq!(
+ MultiBlock::elect(1).unwrap(),
+ BoundedSupports(bounded_vec![
+ (10, BoundedSupport { total: 15, voters: bounded_vec![(5, 5), (8, 10)] }),
+ (
+ 30,
+ BoundedSupport {
+ total: 25,
+ voters: bounded_vec![(5, 5), (6, 10), (7, 10)]
+ }
+ )
+ ])
+ );
+ // self votes
+ assert_eq!(
+ MultiBlock::elect(0).unwrap(),
+ BoundedSupports(bounded_vec![
+ (30, BoundedSupport { total: 30, voters: bounded_vec![(30, 30)] }),
+ (40, BoundedSupport { total: 40, voters: bounded_vec![(40, 40)] })
+ ])
+ );
+
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned { from: Phase::Signed, to: Phase::Export(2) },
+ Event::PhaseTransitioned { from: Phase::Export(1), to: Phase::Off }
+ ]
+ );
+ assert_eq!(verifier_events(), vec![]);
+
+ // This will set us to emergency phase, because we don't know wtf to do.
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ });
+ }
+
+ #[test]
+ fn multi_page_fallback_shortcut_to_msp_works() {
+ ExtBuilder::full().fallback_mode(FallbackModes::Onchain).build_and_execute(|| {
+ roll_to_signed_open();
+
+ // but then we immediately call `elect`, this will work
+ assert!(MultiBlock::elect(0).is_ok());
+
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned { from: Phase::Signed, to: Phase::Off }
+ ]
+ );
+
+ // This will set us to the off phase, since fallback saved us.
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ });
+ }
+
+ #[test]
+ fn elect_call_when_not_ongoing() {
+ ExtBuilder::full().fallback_mode(FallbackModes::Onchain).build_and_execute(|| {
+ roll_to_snapshot_created();
+ assert_eq!(MultiBlock::ongoing(), true);
+ assert!(MultiBlock::elect(0).is_ok());
+ });
+ ExtBuilder::full().fallback_mode(FallbackModes::Onchain).build_and_execute(|| {
+ roll_to(10);
+ assert_eq!(MultiBlock::ongoing(), false);
+ assert_eq!(MultiBlock::elect(0), Err(ElectionError::NotOngoing));
+ });
+ }
+}
+
+#[cfg(test)]
+mod admin_ops {
+ use super::*;
+ use crate::mock::*;
+ use frame_support::assert_ok;
+
+ #[test]
+ fn set_solution_emergency_works() {
+ ExtBuilder::full().build_and_execute(|| {
+ roll_to_signed_open();
+
+ // we get a call to elect(0). this will cause emergency, since no fallback is allowed.
+ assert_eq!(
+ MultiBlock::elect(0),
+ Err(ElectionError::Fallback("Emergency phase started.".to_string()))
+ );
+ assert_eq!(MultiBlock::current_phase(), Phase::Emergency);
+
+ // we can now set the solution to emergency.
+ let (emergency, score) = emergency_solution();
+ assert_ok!(MultiBlock::manage(
+ RuntimeOrigin::root(),
+ AdminOperation::EmergencySetSolution(Box::new(emergency), score)
+ ));
+
+ assert_eq!(MultiBlock::current_phase(), Phase::Emergency);
+ assert_ok!(MultiBlock::elect(0));
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned { from: Phase::Signed, to: Phase::Emergency },
+ Event::PhaseTransitioned { from: Phase::Emergency, to: Phase::Off }
+ ]
+ );
+ assert_eq!(
+ verifier_events(),
+ vec![verifier::Event::Queued(
+ ElectionScore { minimal_stake: 55, sum_stake: 130, sum_stake_squared: 8650 },
+ None
+ )]
+ );
+ })
+ }
+
+ #[test]
+ fn trigger_fallback_works() {
+ ExtBuilder::full()
+ .fallback_mode(FallbackModes::Emergency)
+ .build_and_execute(|| {
+ roll_to_signed_open();
+
+ // we get a call to elect(0). this will cause emergency, since no fallback is
+ // allowed.
+ assert_eq!(
+ MultiBlock::elect(0),
+ Err(ElectionError::Fallback("Emergency phase started.".to_string()))
+ );
+ assert_eq!(MultiBlock::current_phase(), Phase::Emergency);
+
+ // we can now set the solution to emergency, assuming fallback is set to onchain
+ FallbackMode::set(FallbackModes::Onchain);
+ assert_ok!(MultiBlock::manage(
+ RuntimeOrigin::root(),
+ AdminOperation::EmergencyFallback
+ ));
+
+ assert_eq!(MultiBlock::current_phase(), Phase::Emergency);
+ assert_ok!(MultiBlock::elect(0));
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned { from: Phase::Signed, to: Phase::Emergency },
+ Event::PhaseTransitioned { from: Phase::Emergency, to: Phase::Off }
+ ]
+ );
+ assert_eq!(
+ verifier_events(),
+ vec![verifier::Event::Queued(
+ ElectionScore { minimal_stake: 15, sum_stake: 40, sum_stake_squared: 850 },
+ None
+ )]
+ );
+ })
+ }
+
+ #[should_panic]
+ #[test]
+ fn force_rotate_round() {
+ // clears the snapshot and verifier data.
+ // leaves the signed data as is since we bump the round.
+ todo!();
+ }
+
+ #[test]
+ fn set_minimum_solution_score() {
+ ExtBuilder::full().build_and_execute(|| {
+ assert_eq!(VerifierPallet::minimum_score(), None);
+ assert_ok!(MultiBlock::manage(
+ RuntimeOrigin::root(),
+ AdminOperation::SetMinUntrustedScore(ElectionScore {
+ minimal_stake: 100,
+ ..Default::default()
+ })
+ ));
+ assert_eq!(
+ VerifierPallet::minimum_score().unwrap(),
+ ElectionScore { minimal_stake: 100, ..Default::default() }
+ );
+ });
+ }
+}
+
+#[cfg(test)]
+mod snapshot {
+
+ #[test]
+ #[should_panic]
+ fn fetches_exact_voters() {
+ todo!("fetches correct number of voters, based on T::VoterSnapshotPerBlock");
+ }
+
+ #[test]
+ #[should_panic]
+ fn fetches_exact_targets() {
+ todo!("fetches correct number of targets, based on T::TargetSnapshotPerBlock");
+ }
+
+ #[test]
+ #[should_panic]
+ fn fingerprint_works() {
+ todo!("one hardcoded test of the fingerprint value.");
+ }
+
+ #[test]
+ #[should_panic]
+ fn snapshot_size_2second_weight() {
+ todo!()
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/mock/mod.rs b/substrate/frame/election-provider-multi-block/src/mock/mod.rs
new file mode 100644
index 00000000000..5c68494f66b
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/mock/mod.rs
@@ -0,0 +1,700 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+mod signed;
+mod staking;
+mod weight_info;
+
+use super::*;
+use crate::{
+ self as multi_block,
+ signed::{self as signed_pallet, HoldReason},
+ unsigned::{
+ self as unsigned_pallet,
+ miner::{MinerConfig, OffchainMinerError, OffchainWorkerMiner},
+ },
+ verifier::{self as verifier_pallet, AsynchronousVerifier, Status},
+};
+use codec::{Decode, Encode, MaxEncodedLen};
+use frame_election_provider_support::{
+ bounds::{ElectionBounds, ElectionBoundsBuilder},
+ InstantElectionProvider, NposSolution, SequentialPhragmen,
+};
+pub use frame_support::{assert_noop, assert_ok};
+use frame_support::{
+ derive_impl, parameter_types,
+ traits::{fungible::InspectHold, Hooks},
+ weights::{constants, Weight},
+};
+use frame_system::EnsureRoot;
+use parking_lot::RwLock;
+pub use signed::*;
+use sp_core::{
+ offchain::{
+ testing::{PoolState, TestOffchainExt, TestTransactionPoolExt},
+ OffchainDbExt, OffchainWorkerExt, TransactionPoolExt,
+ },
+ ConstBool,
+};
+use sp_npos_elections::EvaluateSupport;
+use sp_runtime::{
+ bounded_vec,
+ traits::{BlakeTwo256, IdentityLookup},
+ BuildStorage, PerU16, Perbill,
+};
+pub use staking::*;
+use std::{sync::Arc, vec};
+
+pub type Extrinsic = sp_runtime::testing::TestXt<RuntimeCall, ()>;
+
+pub type Balance = u64;
+pub type AccountId = u64;
+pub type BlockNumber = u64;
+pub type VoterIndex = u32;
+pub type TargetIndex = u16;
+
+frame_support::construct_runtime!(
+ pub enum Runtime {
+ System: frame_system,
+ Balances: pallet_balances,
+ MultiBlock: multi_block,
+ SignedPallet: signed_pallet,
+ VerifierPallet: verifier_pallet,
+ UnsignedPallet: unsigned_pallet,
+ }
+);
+
+frame_election_provider_support::generate_solution_type!(
+ pub struct TestNposSolution::<
+ VoterIndex = VoterIndex,
+ TargetIndex = TargetIndex,
+ Accuracy = PerU16,
+ MaxVoters = ConstU32::<2_000>
+ >(16)
+);
+
+#[derive_impl(frame_system::config_preludes::TestDefaultConfig)]
+impl frame_system::Config for Runtime {
+ type Hashing = BlakeTwo256;
+ type AccountId = AccountId;
+ type Lookup = IdentityLookup<Self::AccountId>;
+ type BlockLength = ();
+ type BlockWeights = BlockWeights;
+ type AccountData = pallet_balances::AccountData<Balance>;
+ type Block = frame_system::mocking::MockBlock<Self>;
+}
+
+const NORMAL_DISPATCH_RATIO: Perbill = Perbill::from_percent(75);
+parameter_types! {
+ pub const ExistentialDeposit: Balance = 1;
+ pub BlockWeights: frame_system::limits::BlockWeights = frame_system::limits::BlockWeights
+ ::with_sensible_defaults(
+ Weight::from_parts(2u64 * constants::WEIGHT_REF_TIME_PER_SECOND, u64::MAX),
+ NORMAL_DISPATCH_RATIO,
+ );
+}
+
+#[derive_impl(pallet_balances::config_preludes::TestDefaultConfig)]
+impl pallet_balances::Config for Runtime {
+ type Balance = Balance;
+ type DustRemoval = ();
+ type ExistentialDeposit = ExistentialDeposit;
+ type AccountStore = System;
+ type MaxLocks = ();
+ type MaxReserves = ();
+ type ReserveIdentifier = [u8; 8];
+ type WeightInfo = ();
+}
+
+#[allow(unused)]
+#[derive(Clone)]
+pub enum FallbackModes {
+ // TODO: test for this mode
+ Continue,
+ Emergency,
+ Onchain,
+}
+
+parameter_types! {
+ pub static Pages: PageIndex = 3;
+ pub static UnsignedPhase: BlockNumber = 5;
+ pub static SignedPhase: BlockNumber = 5;
+ pub static SignedValidationPhase: BlockNumber = 5;
+
+ pub static FallbackMode: FallbackModes = FallbackModes::Emergency;
+ pub static MinerTxPriority: u64 = 100;
+ pub static SolutionImprovementThreshold: Perbill = Perbill::zero();
+ pub static OffchainRepeat: BlockNumber = 5;
+ pub static MinerMaxLength: u32 = 256;
+ pub static MaxVotesPerVoter: u32 = <TestNposSolution as NposSolution>::LIMIT as u32;
+
+ // by default we stick to 3 pages to host our 12 voters.
+ pub static VoterSnapshotPerBlock: VoterIndex = 4;
+ // and 4 targets, whom we fetch all.
+ pub static TargetSnapshotPerBlock: TargetIndex = 4;
+ pub static Lookahead: BlockNumber = 0;
+
+ // we have 12 voters in the default setting, this should be enough to make sure they are not
+ // trimmed accidentally in any test.
+ #[derive(Encode, Decode, PartialEq, Eq, Debug, scale_info::TypeInfo, MaxEncodedLen)]
+ pub static MaxBackersPerWinner: u32 = 12;
+ pub static MaxBackersPerWinnerFinal: u32 = 12;
+ // we have 4 targets in total and we desire `Desired` thereof, no single page can represent more
+ // than the min of these two.
+ #[derive(Encode, Decode, PartialEq, Eq, Debug, scale_info::TypeInfo, MaxEncodedLen)]
+ pub static MaxWinnersPerPage: u32 = (staking::Targets::get().len() as u32).min(staking::DesiredTargets::get());
+}
+
+impl crate::verifier::Config for Runtime {
+ type RuntimeEvent = RuntimeEvent;
+ type SolutionImprovementThreshold = SolutionImprovementThreshold;
+ type MaxBackersPerWinnerFinal = MaxBackersPerWinnerFinal;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
+ type MaxWinnersPerPage = MaxWinnersPerPage;
+ type SolutionDataProvider = signed::DualSignedPhase;
+ type WeightInfo = ();
+}
+
+impl crate::unsigned::Config for Runtime {
+ type OffchainRepeat = OffchainRepeat;
+ type MinerTxPriority = MinerTxPriority;
+ type OffchainSolver = SequentialPhragmen<Self::AccountId, Perbill>;
+ type WeightInfo = ();
+}
+
+impl MinerConfig for Runtime {
+ type AccountId = AccountId;
+ type Hash = <Runtime as frame_system::Config>::Hash;
+ type MaxLength = MinerMaxLength;
+ type Pages = Pages;
+ type MaxVotesPerVoter = MaxVotesPerVoter;
+ type Solution = TestNposSolution;
+ type Solver = SequentialPhragmen<AccountId, Perbill>;
+ type TargetSnapshotPerBlock = TargetSnapshotPerBlock;
+ type VoterSnapshotPerBlock = VoterSnapshotPerBlock;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
+ type MaxBackersPerWinnerFinal = MaxBackersPerWinnerFinal;
+ type MaxWinnersPerPage = MaxWinnersPerPage;
+}
+
+impl crate::Config for Runtime {
+ type RuntimeEvent = RuntimeEvent;
+ type SignedPhase = SignedPhase;
+ type SignedValidationPhase = SignedValidationPhase;
+ type UnsignedPhase = UnsignedPhase;
+ type DataProvider = staking::MockStaking;
+ type Fallback = MockFallback;
+ type TargetSnapshotPerBlock = TargetSnapshotPerBlock;
+ type VoterSnapshotPerBlock = VoterSnapshotPerBlock;
+ type Lookahead = Lookahead;
+ type MinerConfig = Self;
+ type WeightInfo = weight_info::DualMockWeightInfo;
+ type Verifier = VerifierPallet;
+ type AdminOrigin = EnsureRoot<AccountId>;
+ type Pages = Pages;
+}
+
+parameter_types! {
+ pub static OnChainElectionBounds: ElectionBounds = ElectionBoundsBuilder::default().build();
+}
+
+impl onchain::Config for Runtime {
+ type DataProvider = staking::MockStaking;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
+ type MaxWinnersPerPage = MaxWinnersPerPage;
+ type Sort = ConstBool<true>;
+ type Solver = SequentialPhragmen<AccountId, sp_runtime::PerU16, ()>;
+ type System = Runtime;
+ type WeightInfo = ();
+ type Bounds = OnChainElectionBounds;
+}
+
+pub struct MockFallback;
+impl ElectionProvider for MockFallback {
+ type AccountId = AccountId;
+ type BlockNumber = u64;
+ type Error = String;
+ type DataProvider = staking::MockStaking;
+ type Pages = ConstU32<1>;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
+ type MaxWinnersPerPage = MaxWinnersPerPage;
+
+ fn elect(_remaining: PageIndex) -> Result<BoundedSupportsOf<Self>, Self::Error> {
+ unreachable!()
+ }
+
+ fn ongoing() -> bool {
+ false
+ }
+}
+
+impl InstantElectionProvider for MockFallback {
+ fn instant_elect(
+ voters: Vec<VoterOf<Runtime>>,
+ targets: Vec<Self::AccountId>,
+ desired_targets: u32,
+ ) -> Result<BoundedSupportsOf<Self>, Self::Error> {
+ match FallbackMode::get() {
+ FallbackModes::Continue =>
+ crate::Continue::<Runtime>::instant_elect(voters, targets, desired_targets)
+ .map_err(|x| x.to_string()),
+ FallbackModes::Emergency => crate::InitiateEmergencyPhase::<Runtime>::instant_elect(
+ voters,
+ targets,
+ desired_targets,
+ )
+ .map_err(|x| x.to_string()),
+ FallbackModes::Onchain => onchain::OnChainExecution::<Runtime>::instant_elect(
+ voters,
+ targets,
+ desired_targets,
+ )
+ .map_err(|e| format!("onchain fallback failed: {:?}", e)),
+ }
+ }
+ fn bother() -> bool {
+ matches!(FallbackMode::get(), FallbackModes::Onchain)
+ }
+}
+
+impl<LocalCall> frame_system::offchain::CreateTransactionBase<LocalCall> for Runtime
+where
+ RuntimeCall: From<LocalCall>,
+{
+ type RuntimeCall = RuntimeCall;
+ type Extrinsic = Extrinsic;
+}
+
+impl<LocalCall> frame_system::offchain::CreateInherent<LocalCall> for Runtime
+where
+ RuntimeCall: From<LocalCall>,
+{
+ fn create_inherent(call: Self::RuntimeCall) -> Self::Extrinsic {
+ Extrinsic::new_bare(call)
+ }
+}
+
+pub struct ExtBuilder {}
+
+impl ExtBuilder {
+ pub fn full() -> Self {
+ Self {}
+ }
+
+ pub fn verifier() -> Self {
+ SignedPhase::set(0);
+ SignedValidationPhase::set(0);
+ signed::SignedPhaseSwitch::set(signed::SignedSwitch::Mock);
+ Self {}
+ }
+
+ pub fn unsigned() -> Self {
+ SignedPhase::set(0);
+ SignedValidationPhase::set(0);
+ signed::SignedPhaseSwitch::set(signed::SignedSwitch::Mock);
+ Self {}
+ }
+
+ pub fn signed() -> Self {
+ UnsignedPhase::set(0);
+ Self {}
+ }
+}
+
+impl ExtBuilder {
+ pub(crate) fn max_backers_per_winner(self, c: u32) -> Self {
+ MaxBackersPerWinner::set(c);
+ self
+ }
+ pub(crate) fn max_backers_per_winner_final(self, c: u32) -> Self {
+ MaxBackersPerWinnerFinal::set(c);
+ self
+ }
+ pub(crate) fn miner_tx_priority(self, p: u64) -> Self {
+ MinerTxPriority::set(p);
+ self
+ }
+ pub(crate) fn solution_improvement_threshold(self, p: Perbill) -> Self {
+ SolutionImprovementThreshold::set(p);
+ self
+ }
+ pub(crate) fn pages(self, pages: PageIndex) -> Self {
+ Pages::set(pages);
+ self
+ }
+ pub(crate) fn lookahead(self, lookahead: BlockNumber) -> Self {
+ Lookahead::set(lookahead);
+ self
+ }
+ pub(crate) fn voter_per_page(self, count: u32) -> Self {
+ VoterSnapshotPerBlock::set(count);
+ self
+ }
+ pub(crate) fn miner_max_length(self, len: u32) -> Self {
+ MinerMaxLength::set(len);
+ self
+ }
+ pub(crate) fn desired_targets(self, t: u32) -> Self {
+ staking::DesiredTargets::set(t);
+ self
+ }
+ pub(crate) fn signed_phase(self, d: BlockNumber, v: BlockNumber) -> Self {
+ SignedPhase::set(d);
+ SignedValidationPhase::set(v);
+ self
+ }
+ pub(crate) fn unsigned_phase(self, d: BlockNumber) -> Self {
+ UnsignedPhase::set(d);
+ self
+ }
+ pub(crate) fn signed_validation_phase(self, d: BlockNumber) -> Self {
+ SignedValidationPhase::set(d);
+ self
+ }
+ #[allow(unused)]
+ pub(crate) fn add_voter(self, who: AccountId, stake: Balance, targets: Vec<AccountId>) -> Self {
+ staking::VOTERS.with(|v| v.borrow_mut().push((who, stake, targets.try_into().unwrap())));
+ self
+ }
+ pub(crate) fn fallback_mode(self, mode: FallbackModes) -> Self {
+ FallbackMode::set(mode);
+ self
+ }
+ pub(crate) fn build_unchecked(self) -> sp_io::TestExternalities {
+ sp_tracing::try_init_simple();
+ let mut storage =
+ frame_system::GenesisConfig::<Runtime>::default().build_storage().unwrap();
+
+ let _ = pallet_balances::GenesisConfig::<Runtime> {
+ balances: vec![
+ // bunch of account for submitting stuff only.
+ (91, 100),
+ (92, 100),
+ (93, 100),
+ (94, 100),
+ (95, 100),
+ (96, 100),
+ (97, 100),
+ (99, 100),
+ (999, 100),
+ (9999, 100),
+ ],
+ ..Default::default()
+ }
+ .assimilate_storage(&mut storage);
+
+ sp_io::TestExternalities::from(storage)
+ }
+
+ /// Warning: this does not execute the post-sanity-checks.
+ pub(crate) fn build_offchainify(self) -> (sp_io::TestExternalities, Arc<RwLock<PoolState>>) {
+ let mut ext = self.build_unchecked();
+ let (offchain, _offchain_state) = TestOffchainExt::new();
+ let (pool, pool_state) = TestTransactionPoolExt::new();
+
+ ext.register_extension(OffchainDbExt::new(offchain.clone()));
+ ext.register_extension(OffchainWorkerExt::new(offchain));
+ ext.register_extension(TransactionPoolExt::new(pool));
+
+ (ext, pool_state)
+ }
+
+ /// Build the externalities, and execute the given s`test` closure with it.
+ pub(crate) fn build_and_execute(self, test: impl FnOnce() -> ()) {
+ let mut ext = self.build_unchecked();
+ ext.execute_with_sanity_checks(test);
+ }
+}
+
+pub trait ExecuteWithSanityChecks {
+ fn execute_with_sanity_checks(&mut self, test: impl FnOnce() -> ());
+}
+
+impl ExecuteWithSanityChecks for sp_io::TestExternalities {
+ fn execute_with_sanity_checks(&mut self, test: impl FnOnce() -> ()) {
+ self.execute_with(test);
+ self.execute_with(all_pallets_sanity_checks)
+ }
+}
+
+fn all_pallets_sanity_checks() {
+ let now = System::block_number();
+ let _ = VerifierPallet::do_try_state(now).unwrap();
+ let _ = UnsignedPallet::do_try_state(now).unwrap();
+ let _ = MultiBlock::do_try_state(now).unwrap();
+ let _ = SignedPallet::do_try_state(now).unwrap();
+}
+
+/// Fully verify a solution.
+///
+/// This will progress the blocks until the verifier pallet is done verifying it.
+///
+/// The solution must have already been loaded via `load_and_start_verification`.
+///
+/// Return the final supports, which is the outcome. If this succeeds, then the valid variant of the
+/// `QueuedSolution` form `verifier` is ready to be read.
+pub fn roll_to_full_verification() -> Vec<BoundedSupportsOf<MultiBlock>> {
+ // we must be ready to verify.
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(Pages::get() - 1));
+
+ while matches!(VerifierPallet::status(), Status::Ongoing(_)) {
+ roll_to(System::block_number() + 1);
+ }
+
+ (MultiBlock::lsp()..=MultiBlock::msp())
+ .map(|p| VerifierPallet::get_queued_solution_page(p).unwrap_or_default())
+ .collect::<Vec<_>>()
+}
+
+/// Generate a single page of `TestNposSolution` from the give supports.
+///
+/// All of the voters in this support must live in a single page of the snapshot, noted by
+/// `snapshot_page`.
+pub fn solution_from_supports(
+ supports: sp_npos_elections::Supports<AccountId>,
+ snapshot_page: PageIndex,
+) -> TestNposSolution {
+ let staked = sp_npos_elections::supports_to_staked_assignment(supports);
+ let assignments = sp_npos_elections::assignment_staked_to_ratio_normalized(staked).unwrap();
+
+ let voters = crate::Snapshot::<Runtime>::voters(snapshot_page).unwrap();
+ let targets = crate::Snapshot::<Runtime>::targets().unwrap();
+ let voter_index = helpers::voter_index_fn_linear::<Runtime>(&voters);
+ let target_index = helpers::target_index_fn_linear::<Runtime>(&targets);
+
+ TestNposSolution::from_assignment(&assignments, &voter_index, &target_index).unwrap()
+}
+
+/// Generate a raw paged solution from the given vector of supports.
+///
+/// Given vector must be aligned with the snapshot, at most need to be 'pagified' which we do
+/// internally.
+pub fn raw_paged_from_supports(
+ paged_supports: Vec<sp_npos_elections::Supports<AccountId>>,
+ round: u32,
+) -> PagedRawSolution<Runtime> {
+ let score = {
+ let flattened = paged_supports.iter().cloned().flatten().collect::<Vec<_>>();
+ flattened.evaluate()
+ };
+
+ let solution_pages = paged_supports
+ .pagify(Pages::get())
+ .map(|(page_index, page_support)| solution_from_supports(page_support.to_vec(), page_index))
+ .collect::<Vec<_>>();
+
+ let solution_pages = solution_pages.try_into().unwrap();
+ PagedRawSolution { solution_pages, score, round }
+}
+
+/// ensure that the snapshot fully exists.
+///
+/// NOTE: this should not be used that often, because we check snapshot in sanity checks, which are
+/// called ALL THE TIME.
+pub fn assert_full_snapshot() {
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(true, Pages::get()));
+}
+
+/// ensure that the no snapshot exists.
+///
+/// NOTE: this should not be used that often, because we check snapshot in sanity checks, which are
+/// called ALL THE TIME.
+pub fn assert_none_snapshot() {
+ assert_ok!(Snapshot::<Runtime>::ensure_snapshot(false, Pages::get()));
+}
+
+/// Simple wrapper for mining a new solution. Just more handy in case the interface of mine solution
+/// changes.
+///
+/// For testing, we never want to do reduce.
+pub fn mine_full_solution() -> Result<PagedRawSolution<Runtime>, OffchainMinerError<Runtime>> {
+ OffchainWorkerMiner::<Runtime>::mine_solution(Pages::get(), false)
+}
+
+/// Same as [`mine_full_solution`] but with custom pages.
+pub fn mine_solution(
+ pages: PageIndex,
+) -> Result<PagedRawSolution<Runtime>, OffchainMinerError<Runtime>> {
+ OffchainWorkerMiner::<Runtime>::mine_solution(pages, false)
+}
+
+/// Assert that `count` voters exist across `pages` number of pages.
+pub fn ensure_voters(pages: PageIndex, count: usize) {
+ assert_eq!(crate::Snapshot::<Runtime>::voter_pages(), pages);
+ assert_eq!(crate::Snapshot::<Runtime>::voters_iter_flattened().count(), count);
+}
+
+/// Assert that `count` targets exist across `pages` number of pages.
+pub fn ensure_targets(pages: PageIndex, count: usize) {
+ assert_eq!(crate::Snapshot::<Runtime>::target_pages(), pages);
+ assert_eq!(crate::Snapshot::<Runtime>::targets().unwrap().len(), count);
+}
+
+/// get the events of the multi-block pallet.
+pub fn multi_block_events() -> Vec<crate::Event<Runtime>> {
+ System::events()
+ .into_iter()
+ .map(|r| r.event)
+ .filter_map(|e| if let RuntimeEvent::MultiBlock(inner) = e { Some(inner) } else { None })
+ .collect::<Vec<_>>()
+}
+
+/// get the events of the verifier pallet.
+pub fn verifier_events() -> Vec<crate::verifier::Event<Runtime>> {
+ System::events()
+ .into_iter()
+ .map(|r| r.event)
+ .filter_map(
+ |e| if let RuntimeEvent::VerifierPallet(inner) = e { Some(inner) } else { None },
+ )
+ .collect::<Vec<_>>()
+}
+
+/// proceed block number to `n`.
+pub fn roll_to(n: BlockNumber) {
+ crate::Pallet::<Runtime>::roll_to(
+ n,
+ matches!(SignedPhaseSwitch::get(), SignedSwitch::Real),
+ true,
+ );
+}
+
+/// proceed block number to whenever the snapshot is fully created (`Phase::Snapshot(0)`).
+pub fn roll_to_snapshot_created() {
+ while !matches!(MultiBlock::current_phase(), Phase::Snapshot(0)) {
+ roll_next()
+ }
+ assert_full_snapshot();
+}
+
+/// proceed block number to whenever the unsigned phase is open (`Phase::Unsigned(_)`).
+pub fn roll_to_unsigned_open() {
+ while !matches!(MultiBlock::current_phase(), Phase::Unsigned(_)) {
+ roll_next()
+ }
+}
+
+/// proceed block number to whenever the signed phase is open (`Phase::Signed(_)`).
+pub fn roll_to_signed_open() {
+ while !matches!(MultiBlock::current_phase(), Phase::Signed) {
+ roll_next();
+ }
+}
+
+/// proceed block number to whenever the signed validation phase is open
+/// (`Phase::SignedValidation(_)`).
+pub fn roll_to_signed_validation_open() {
+ while !matches!(MultiBlock::current_phase(), Phase::SignedValidation(_)) {
+ roll_next()
+ }
+}
+
+/// Proceed one block.
+pub fn roll_next() {
+ roll_to(System::block_number() + 1);
+}
+
+/// Proceed one block, and execute offchain workers as well.
+pub fn roll_next_with_ocw(maybe_pool: Option<Arc<RwLock<PoolState>>>) {
+ roll_to_with_ocw(System::block_number() + 1, maybe_pool)
+}
+
+/// proceed block number to `n`, while running all offchain workers as well.
+pub fn roll_to_with_ocw(n: BlockNumber, maybe_pool: Option<Arc<RwLock<PoolState>>>) {
+ use sp_runtime::traits::Dispatchable;
+ let now = System::block_number();
+ for i in now + 1..=n {
+ // check the offchain transaction pool, and if anything's there, submit it.
+ if let Some(ref pool) = maybe_pool {
+ pool.read()
+ .transactions
+ .clone()
+ .into_iter()
+ .map(|uxt| <Extrinsic as codec::Decode>::decode(&mut &*uxt).unwrap())
+ .for_each(|xt| {
+ xt.function.dispatch(frame_system::RawOrigin::None.into()).unwrap();
+ });
+ pool.try_write().unwrap().transactions.clear();
+ }
+
+ System::set_block_number(i);
+
+ MultiBlock::on_initialize(i);
+ VerifierPallet::on_initialize(i);
+ UnsignedPallet::on_initialize(i);
+ if matches!(SignedPhaseSwitch::get(), SignedSwitch::Real) {
+ SignedPallet::on_initialize(i);
+ }
+
+ MultiBlock::offchain_worker(i);
+ VerifierPallet::offchain_worker(i);
+ UnsignedPallet::offchain_worker(i);
+ if matches!(SignedPhaseSwitch::get(), SignedSwitch::Real) {
+ SignedPallet::offchain_worker(i);
+ }
+
+ // invariants must hold at the end of each block.
+ all_pallets_sanity_checks()
+ }
+}
+
+/// An invalid solution with any score.
+pub fn fake_solution(score: ElectionScore) -> PagedRawSolution<Runtime> {
+ PagedRawSolution {
+ score,
+ solution_pages: bounded_vec![Default::default()],
+ ..Default::default()
+ }
+}
+
+/// A real solution that's valid, but has a really bad score.
+///
+/// This is different from `solution_from_supports` in that it does not require the snapshot to
+/// exist.
+// TODO: probably deprecate this.
+pub fn raw_paged_solution_low_score() -> PagedRawSolution<Runtime> {
+ PagedRawSolution {
+ solution_pages: vec![TestNposSolution {
+ // 2 targets, both voting for themselves
+ votes1: vec![(0, 0), (1, 2)],
+ ..Default::default()
+ }]
+ .try_into()
+ .unwrap(),
+ round: 0,
+ score: ElectionScore { minimal_stake: 10, sum_stake: 20, sum_stake_squared: 200 },
+ }
+}
+
+/// Get the free and held balance of `who`.
+pub fn balances(who: AccountId) -> (Balance, Balance) {
+ (
+ Balances::free_balance(who),
+ Balances::balance_on_hold(&HoldReason::SignedSubmission.into(), &who),
+ )
+}
+
+/// Election bounds based on just the given count.
+pub fn bound_by_count(count: Option<u32>) -> DataProviderBounds {
+ DataProviderBounds { count: count.map(|x| x.into()), size: None }
+}
+
+pub fn emergency_solution() -> (BoundedSupportsOf<MultiBlock>, ElectionScore) {
+ let supports = onchain::OnChainExecution::<Runtime>::elect(0).unwrap();
+ let score = supports.evaluate();
+ (supports, score)
+}
diff --git a/substrate/frame/election-provider-multi-block/src/mock/signed.rs b/substrate/frame/election-provider-multi-block/src/mock/signed.rs
new file mode 100644
index 00000000000..33436374cd1
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/mock/signed.rs
@@ -0,0 +1,255 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use super::{Balance, Balances, Pages, Runtime, RuntimeEvent, SignedPallet, System};
+use crate::{
+ mock::{
+ balances, multi_block_events, roll_next, roll_to_signed_validation_open, verifier_events,
+ AccountId, RuntimeHoldReason, RuntimeOrigin, VerifierPallet,
+ },
+ signed::{self as signed_pallet, Event as SignedEvent, Submissions},
+ unsigned::miner::MinerConfig,
+ verifier::{self, AsynchronousVerifier, SolutionDataProvider, VerificationResult, Verifier},
+ Event, PadSolutionPages, PagedRawSolution, Pagify, Phase, SolutionOf,
+};
+use frame_election_provider_support::PageIndex;
+use frame_support::{
+ assert_ok, dispatch::PostDispatchInfo, parameter_types, traits::EstimateCallFee, BoundedVec,
+};
+use sp_npos_elections::ElectionScore;
+use sp_runtime::{traits::Zero, Perbill};
+
+parameter_types! {
+ pub static MockSignedNextSolution: Option<BoundedVec<SolutionOf<Runtime>, Pages>> = None;
+ pub static MockSignedNextScore: Option<ElectionScore> = Default::default();
+ pub static MockSignedResults: Vec<VerificationResult> = Default::default();
+}
+
+/// A simple implementation of the signed phase that can be controller by some static variables
+/// directly.
+///
+/// Useful for when you don't care too much about the signed phase.
+pub struct MockSignedPhase;
+impl SolutionDataProvider for MockSignedPhase {
+ type Solution = <Runtime as MinerConfig>::Solution;
+ fn get_page(page: PageIndex) -> Option<Self::Solution> {
+ MockSignedNextSolution::get().map(|i| i.get(page as usize).cloned().unwrap_or_default())
+ }
+
+ fn get_score() -> Option<ElectionScore> {
+ MockSignedNextScore::get()
+ }
+
+ fn report_result(result: verifier::VerificationResult) {
+ MOCK_SIGNED_RESULTS.with(|r| r.borrow_mut().push(result));
+ }
+}
+
+pub struct FixedCallFee;
+impl EstimateCallFee<signed_pallet::Call<Runtime>, Balance> for FixedCallFee {
+ fn estimate_call_fee(_: &signed_pallet::Call<Runtime>, _: PostDispatchInfo) -> Balance {
+ 1
+ }
+}
+
+parameter_types! {
+ pub static SignedDepositBase: Balance = 5;
+ pub static SignedDepositPerPage: Balance = 1;
+ pub static SignedMaxSubmissions: u32 = 3;
+ pub static SignedRewardBase: Balance = 3;
+ pub static SignedPhaseSwitch: SignedSwitch = SignedSwitch::Real;
+ pub static BailoutGraceRatio: Perbill = Perbill::from_percent(20);
+}
+
+impl crate::signed::Config for Runtime {
+ type RuntimeEvent = RuntimeEvent;
+ type RuntimeHoldReason = RuntimeHoldReason;
+ type Currency = Balances;
+ type DepositBase = SignedDepositBase;
+ type DepositPerPage = SignedDepositPerPage;
+ type EstimateCallFee = FixedCallFee;
+ type MaxSubmissions = SignedMaxSubmissions;
+ type RewardBase = SignedRewardBase;
+ type BailoutGraceRatio = BailoutGraceRatio;
+ type WeightInfo = ();
+}
+
+/// Control which signed phase is being used.
+#[derive(Clone, Copy, PartialEq, Eq, Debug)]
+pub enum SignedSwitch {
+ Mock,
+ Real,
+}
+
+pub struct DualSignedPhase;
+impl SolutionDataProvider for DualSignedPhase {
+ type Solution = <Runtime as MinerConfig>::Solution;
+ fn get_page(page: PageIndex) -> Option<Self::Solution> {
+ match SignedPhaseSwitch::get() {
+ SignedSwitch::Mock => MockSignedNextSolution::get()
+ .map(|i| i.get(page as usize).cloned().unwrap_or_default()),
+ SignedSwitch::Real => SignedPallet::get_page(page),
+ }
+ }
+
+ fn get_score() -> Option<ElectionScore> {
+ match SignedPhaseSwitch::get() {
+ SignedSwitch::Mock => MockSignedNextScore::get(),
+ SignedSwitch::Real => SignedPallet::get_score(),
+ }
+ }
+
+ fn report_result(result: verifier::VerificationResult) {
+ match SignedPhaseSwitch::get() {
+ SignedSwitch::Mock => MOCK_SIGNED_RESULTS.with(|r| r.borrow_mut().push(result)),
+ SignedSwitch::Real => SignedPallet::report_result(result),
+ }
+ }
+}
+
+/// get the events of the verifier pallet.
+pub fn signed_events() -> Vec<crate::signed::Event<Runtime>> {
+ System::events()
+ .into_iter()
+ .map(|r| r.event)
+ .filter_map(|e| if let RuntimeEvent::SignedPallet(inner) = e { Some(inner) } else { None })
+ .collect::<Vec<_>>()
+}
+
+/// Load a signed solution into its pallet.
+pub fn load_signed_for_verification(who: AccountId, paged: PagedRawSolution<Runtime>) {
+ let initial_balance = Balances::free_balance(&who);
+ assert_eq!(balances(who), (initial_balance, 0));
+
+ assert_ok!(SignedPallet::register(RuntimeOrigin::signed(who), paged.score));
+
+ assert_eq!(
+ balances(who),
+ (initial_balance - SignedDepositBase::get(), SignedDepositBase::get())
+ );
+
+ for (page_index, solution_page) in paged.solution_pages.pagify(Pages::get()) {
+ assert_ok!(SignedPallet::submit_page(
+ RuntimeOrigin::signed(who),
+ page_index,
+ Some(Box::new(solution_page.clone()))
+ ));
+ }
+
+ let mut events = signed_events();
+ for _ in 0..Pages::get() {
+ let event = events.pop().unwrap();
+ assert!(matches!(event, SignedEvent::Stored(_, x, _) if x == who))
+ }
+ assert!(matches!(events.pop().unwrap(), SignedEvent::Registered(_, x, _) if x == who));
+
+ let full_deposit =
+ SignedDepositBase::get() + (Pages::get() as Balance) * SignedDepositPerPage::get();
+ assert_eq!(balances(who), (initial_balance - full_deposit, full_deposit));
+}
+
+/// Same as [`load_signed_for_verification`], but also goes forward to the beginning of the signed
+/// verification phase.
+pub fn load_signed_for_verification_and_start(
+ who: AccountId,
+ paged: PagedRawSolution<Runtime>,
+ _round: u32,
+) {
+ load_signed_for_verification(who, paged);
+
+ // now the solution should start being verified.
+ roll_to_signed_validation_open();
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned { from: Phase::Signed, to: Phase::SignedValidation(20) }
+ ]
+ );
+ assert_eq!(verifier_events(), vec![]);
+}
+
+/// Same as [`load_signed_for_verification_and_start`], but also goes forward enough blocks for the
+/// solution to be verified, assuming it is all correct.
+///
+/// In other words, it goes [`Pages`] blocks forward.
+pub fn load_signed_for_verification_and_start_and_roll_to_verified(
+ who: AccountId,
+ paged: PagedRawSolution<Runtime>,
+ _round: u32,
+) {
+ load_signed_for_verification(who, paged.clone());
+
+ // now the solution should start being verified.
+ roll_to_signed_validation_open();
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ Event::PhaseTransitioned { from: Phase::Snapshot(0), to: Phase::Signed },
+ Event::PhaseTransitioned { from: Phase::Signed, to: Phase::SignedValidation(20) }
+ ]
+ );
+ assert_eq!(verifier_events(), vec![]);
+
+ // there is no queued solution prior to the last page of the solution getting verified
+ assert_eq!(<Runtime as crate::Config>::Verifier::queued_score(), None);
+
+ // roll to the block it is finalized.
+ for _ in 0..Pages::get() {
+ roll_next();
+ }
+
+ assert_eq!(
+ verifier_events(),
+ vec![
+ // TODO: these are hardcoded for 3 page.
+ verifier::Event::Verified(2, 2),
+ verifier::Event::Verified(1, 2),
+ verifier::Event::Verified(0, 2),
+ verifier::Event::Queued(paged.score, None),
+ ]
+ );
+
+ // there is now a queued solution.
+ assert_eq!(<Runtime as crate::Config>::Verifier::queued_score(), Some(paged.score));
+}
+
+/// Load a full raw paged solution for verification.
+///
+/// More or less the equivalent of `load_signed_for_verification_and_start`, but when
+/// `SignedSwitch::Mock` is set.
+pub fn load_mock_signed_and_start(raw_paged: PagedRawSolution<Runtime>) {
+ assert_eq!(
+ SignedPhaseSwitch::get(),
+ SignedSwitch::Mock,
+ "you should not use this if mock phase is not being mocked"
+ );
+ MockSignedNextSolution::set(Some(raw_paged.solution_pages.pad_solution_pages(Pages::get())));
+ MockSignedNextScore::set(Some(raw_paged.score));
+
+ // Let's gooooo!
+ assert_ok!(<VerifierPallet as AsynchronousVerifier>::start());
+}
+
+/// Ensure that no submission data exists in `round` for `who`.
+pub fn assert_no_data_for(round: u32, who: AccountId) {
+ assert!(!Submissions::<Runtime>::leaderboard(round).into_iter().any(|(x, _)| x == who));
+ assert!(Submissions::<Runtime>::metadata_of(round, who).is_none());
+ assert!(Submissions::<Runtime>::pages_of(round, who).count().is_zero());
+}
diff --git a/substrate/frame/election-provider-multi-block/src/mock/staking.rs b/substrate/frame/election-provider-multi-block/src/mock/staking.rs
new file mode 100644
index 00000000000..bb4adb4d297
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/mock/staking.rs
@@ -0,0 +1,238 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use super::{AccountId, MaxVotesPerVoter, Runtime};
+use crate::VoterOf;
+use frame_election_provider_support::{
+ data_provider, DataProviderBounds, ElectionDataProvider, PageIndex, VoteWeight,
+};
+use frame_support::pallet_prelude::*;
+use sp_core::bounded_vec;
+use sp_std::prelude::*;
+
+pub type T = Runtime;
+
+frame_support::parameter_types! {
+ pub static Targets: Vec<AccountId> = vec![10, 20, 30, 40];
+ pub static Voters: Vec<VoterOf<Runtime>> = vec![
+ // page 2:
+ (1, 10, bounded_vec![10, 20]),
+ (2, 10, bounded_vec![30, 40]),
+ (3, 10, bounded_vec![40]),
+ (4, 10, bounded_vec![10, 20, 40]),
+ // page 1:
+ (5, 10, bounded_vec![10, 30, 40]),
+ (6, 10, bounded_vec![20, 30, 40]),
+ (7, 10, bounded_vec![20, 30]),
+ (8, 10, bounded_vec![10]),
+ // page 0: (self-votes)
+ (10, 10, bounded_vec![10]),
+ (20, 20, bounded_vec![20]),
+ (30, 30, bounded_vec![30]),
+ (40, 40, bounded_vec![40]),
+ ];
+ pub static DesiredTargets: u32 = 2;
+ pub static EpochLength: u64 = 30;
+
+ pub static LastIteratedVoterIndex: Option<usize> = None;
+}
+
+pub struct MockStaking;
+impl ElectionDataProvider for MockStaking {
+ type AccountId = AccountId;
+ type BlockNumber = u64;
+ type MaxVotesPerVoter = MaxVotesPerVoter;
+
+ fn electable_targets(
+ bounds: DataProviderBounds,
+ remaining: PageIndex,
+ ) -> data_provider::Result<Vec<AccountId>> {
+ let targets = Targets::get();
+
+ if remaining != 0 {
+ crate::log!(
+ warn,
+ "requesting targets for non-zero page, we will return the same page in any case"
+ );
+ }
+ if bounds.slice_exhausted(&targets) {
+ return Err("Targets too big")
+ }
+
+ Ok(targets)
+ }
+
+ fn electing_voters(
+ bounds: DataProviderBounds,
+ remaining: PageIndex,
+ ) -> data_provider::Result<
+ Vec<(AccountId, VoteWeight, BoundedVec<AccountId, Self::MaxVotesPerVoter>)>,
+ > {
+ let mut voters = Voters::get();
+
+ // jump to the first non-iterated, if this is a follow up.
+ if let Some(index) = LastIteratedVoterIndex::get() {
+ voters = voters.iter().skip(index).cloned().collect::<Vec<_>>();
+ }
+
+ // take as many as you can.
+ if let Some(max_len) = bounds.count.map(|c| c.0 as usize) {
+ voters.truncate(max_len)
+ }
+
+ if voters.is_empty() {
+ return Ok(vec![])
+ }
+
+ if remaining > 0 {
+ let last = voters.last().cloned().unwrap();
+ LastIteratedVoterIndex::set(Some(
+ Voters::get().iter().position(|v| v == &last).map(|i| i + 1).unwrap(),
+ ));
+ } else {
+ LastIteratedVoterIndex::set(None)
+ }
+
+ Ok(voters)
+ }
+
+ fn desired_targets() -> data_provider::Result<u32> {
+ Ok(DesiredTargets::get())
+ }
+
+ fn next_election_prediction(now: u64) -> u64 {
+ now + EpochLength::get() - now % EpochLength::get()
+ }
+
+ #[cfg(feature = "runtime-benchmarks")]
+ fn put_snapshot(
+ voters: Vec<(AccountId, VoteWeight, BoundedVec<AccountId, MaxVotesPerVoter>)>,
+ targets: Vec<AccountId>,
+ _target_stake: Option<VoteWeight>,
+ ) {
+ Targets::set(targets);
+ Voters::set(voters);
+ }
+
+ #[cfg(feature = "runtime-benchmarks")]
+ fn clear() {
+ Targets::set(vec![]);
+ Voters::set(vec![]);
+ }
+
+ #[cfg(feature = "runtime-benchmarks")]
+ fn add_voter(
+ voter: AccountId,
+ weight: VoteWeight,
+ targets: BoundedVec<AccountId, MaxVotesPerVoter>,
+ ) {
+ let mut current = Voters::get();
+ current.push((voter, weight, targets));
+ Voters::set(current);
+ }
+
+ #[cfg(feature = "runtime-benchmarks")]
+ fn add_target(target: AccountId) {
+ use super::ExistentialDeposit;
+
+ let mut current = Targets::get();
+ current.push(target);
+ Targets::set(current);
+
+ // to be on-par with staking, we add a self vote as well. the stake is really not that
+ // important.
+ let mut current = Voters::get();
+ current.push((target, ExistentialDeposit::get() as u64, vec![target].try_into().unwrap()));
+ Voters::set(current);
+ }
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+ use crate::mock::{bound_by_count, ExtBuilder};
+
+ #[test]
+ fn targets() {
+ ExtBuilder::full().build_and_execute(|| {
+ assert_eq!(Targets::get().len(), 4);
+
+ // any non-zero page returns page zero.
+ assert_eq!(MockStaking::electable_targets(bound_by_count(None), 2).unwrap().len(), 4);
+ assert_eq!(MockStaking::electable_targets(bound_by_count(None), 1).unwrap().len(), 4);
+
+ // 0 is also fine.
+ assert_eq!(MockStaking::electable_targets(bound_by_count(None), 0).unwrap().len(), 4);
+
+ // fetch less targets is error, because targets cannot be sorted (both by MockStaking,
+ // and the real staking).
+ assert!(MockStaking::electable_targets(bound_by_count(Some(2)), 0).is_err());
+
+ // more targets is fine.
+ assert!(MockStaking::electable_targets(bound_by_count(Some(4)), 0).is_ok());
+ assert!(MockStaking::electable_targets(bound_by_count(Some(5)), 0).is_ok());
+ });
+ }
+
+ #[test]
+ fn multi_page_votes() {
+ ExtBuilder::full().build_and_execute(|| {
+ assert_eq!(MockStaking::electing_voters(bound_by_count(None), 0).unwrap().len(), 12);
+ assert!(LastIteratedVoterIndex::get().is_none());
+
+ assert_eq!(
+ MockStaking::electing_voters(bound_by_count(Some(4)), 0)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![1, 2, 3, 4],
+ );
+ assert!(LastIteratedVoterIndex::get().is_none());
+
+ assert_eq!(
+ MockStaking::electing_voters(bound_by_count(Some(4)), 2)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![1, 2, 3, 4],
+ );
+ assert_eq!(LastIteratedVoterIndex::get().unwrap(), 4);
+
+ assert_eq!(
+ MockStaking::electing_voters(bound_by_count(Some(4)), 1)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![5, 6, 7, 8],
+ );
+ assert_eq!(LastIteratedVoterIndex::get().unwrap(), 8);
+
+ assert_eq!(
+ MockStaking::electing_voters(bound_by_count(Some(4)), 0)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![10, 20, 30, 40],
+ );
+ assert!(LastIteratedVoterIndex::get().is_none());
+ })
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/mock/weight_info.rs b/substrate/frame/election-provider-multi-block/src/mock/weight_info.rs
new file mode 100644
index 00000000000..a5f28f4fbd2
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/mock/weight_info.rs
@@ -0,0 +1,85 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// TODO: would love to ditch this, too big to handle here.
+
+use crate::{self as multi_block};
+use frame_support::weights::Weight;
+use sp_runtime::traits::Zero;
+
+frame_support::parameter_types! {
+ pub static MockWeightInfo: bool = false;
+}
+
+pub struct DualMockWeightInfo;
+impl multi_block::WeightInfo for DualMockWeightInfo {
+ fn on_initialize_nothing() -> Weight {
+ if MockWeightInfo::get() {
+ Zero::zero()
+ } else {
+ <() as multi_block::WeightInfo>::on_initialize_nothing()
+ }
+ }
+
+ fn on_initialize_into_snapshot_msp() -> Weight {
+ if MockWeightInfo::get() {
+ Zero::zero()
+ } else {
+ <() as multi_block::WeightInfo>::on_initialize_into_snapshot_msp()
+ }
+ }
+
+ fn on_initialize_into_snapshot_rest() -> Weight {
+ if MockWeightInfo::get() {
+ Zero::zero()
+ } else {
+ <() as multi_block::WeightInfo>::on_initialize_into_snapshot_rest()
+ }
+ }
+
+ fn on_initialize_into_signed() -> Weight {
+ if MockWeightInfo::get() {
+ Zero::zero()
+ } else {
+ <() as multi_block::WeightInfo>::on_initialize_into_signed()
+ }
+ }
+
+ fn on_initialize_into_signed_validation() -> Weight {
+ if MockWeightInfo::get() {
+ Zero::zero()
+ } else {
+ <() as multi_block::WeightInfo>::on_initialize_into_signed_validation()
+ }
+ }
+
+ fn on_initialize_into_unsigned() -> Weight {
+ if MockWeightInfo::get() {
+ Zero::zero()
+ } else {
+ <() as multi_block::WeightInfo>::on_initialize_into_unsigned()
+ }
+ }
+
+ fn manage() -> Weight {
+ if MockWeightInfo::get() {
+ Zero::zero()
+ } else {
+ <() as multi_block::WeightInfo>::manage()
+ }
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/signed/benchmarking.rs b/substrate/frame/election-provider-multi-block/src/signed/benchmarking.rs
new file mode 100644
index 00000000000..1e9facd72fb
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/signed/benchmarking.rs
@@ -0,0 +1,171 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use crate::{
+ signed::{Config, Pallet, Submissions},
+ types::PagedRawSolution,
+ unsigned::miner::OffchainWorkerMiner,
+ CurrentPhase, Phase, Round,
+};
+use frame_benchmarking::v2::*;
+use frame_election_provider_support::ElectionDataProvider;
+use frame_support::pallet_prelude::*;
+use frame_system::RawOrigin;
+use sp_npos_elections::ElectionScore;
+use sp_std::boxed::Box;
+
+#[benchmarks(where T: crate::Config + crate::verifier::Config + crate::unsigned::Config)]
+mod benchmarks {
+ use super::*;
+
+ #[benchmark]
+ fn register_not_full() -> Result<(), BenchmarkError> {
+ CurrentPhase::<T>::put(Phase::Signed);
+ let round = Round::<T>::get();
+ let alice = crate::Pallet::<T>::funded_account("alice", 0);
+ let score = ElectionScore::default();
+
+ assert_eq!(Submissions::<T>::sorted_submitters(round).len(), 0);
+ #[block]
+ {
+ Pallet::<T>::register(RawOrigin::Signed(alice).into(), score)?;
+ }
+
+ assert_eq!(Submissions::<T>::sorted_submitters(round).len(), 1);
+ Ok(())
+ }
+
+ #[benchmark]
+ fn register_eject() -> Result<(), BenchmarkError> {
+ CurrentPhase::<T>::put(Phase::Signed);
+ let round = Round::<T>::get();
+
+ for i in 0..T::MaxSubmissions::get() {
+ let submitter = crate::Pallet::<T>::funded_account("submitter", i);
+ let score = ElectionScore { minimal_stake: i.into(), ..Default::default() };
+ Pallet::<T>::register(RawOrigin::Signed(submitter.clone()).into(), score)?;
+
+ // The first one, which will be ejected, has also submitted all pages
+ if i == 0 {
+ for p in 0..T::Pages::get() {
+ let page = Some(Default::default());
+ Pallet::<T>::submit_page(RawOrigin::Signed(submitter.clone()).into(), p, page)?;
+ }
+ }
+ }
+
+ let who = crate::Pallet::<T>::funded_account("who", 0);
+ let score =
+ ElectionScore { minimal_stake: T::MaxSubmissions::get().into(), ..Default::default() };
+
+ assert_eq!(
+ Submissions::<T>::sorted_submitters(round).len(),
+ T::MaxSubmissions::get() as usize
+ );
+
+ #[block]
+ {
+ Pallet::<T>::register(RawOrigin::Signed(who).into(), score)?;
+ }
+
+ assert_eq!(
+ Submissions::<T>::sorted_submitters(round).len(),
+ T::MaxSubmissions::get() as usize
+ );
+ Ok(())
+ }
+
+ #[benchmark]
+ fn submit_page() -> Result<(), BenchmarkError> {
+ T::DataProvider::set_next_election(crate::Pallet::<T>::reasonable_next_election());
+ crate::Pallet::<T>::roll_until_matches(|| {
+ matches!(CurrentPhase::<T>::get(), Phase::Signed)
+ });
+
+ // mine a full solution
+ let PagedRawSolution { score, solution_pages, .. } =
+ OffchainWorkerMiner::<T>::mine_solution(T::Pages::get(), false).unwrap();
+ let page = Some(Box::new(solution_pages[0].clone()));
+
+ // register alice
+ let alice = crate::Pallet::<T>::funded_account("alice", 0);
+ Pallet::<T>::register(RawOrigin::Signed(alice.clone()).into(), score)?;
+
+ #[block]
+ {
+ Pallet::<T>::submit_page(RawOrigin::Signed(alice).into(), 0, page)?;
+ }
+
+ Ok(())
+ }
+
+ #[benchmark]
+ fn unset_page() -> Result<(), BenchmarkError> {
+ T::DataProvider::set_next_election(crate::Pallet::<T>::reasonable_next_election());
+ crate::Pallet::<T>::roll_until_matches(|| {
+ matches!(CurrentPhase::<T>::get(), Phase::Signed)
+ });
+
+ // mine a full solution
+ let PagedRawSolution { score, solution_pages, .. } =
+ OffchainWorkerMiner::<T>::mine_solution(T::Pages::get(), false).unwrap();
+ let page = Some(Box::new(solution_pages[0].clone()));
+
+ // register alice
+ let alice = crate::Pallet::<T>::funded_account("alice", 0);
+ Pallet::<T>::register(RawOrigin::Signed(alice.clone()).into(), score)?;
+
+ // submit page
+ Pallet::<T>::submit_page(RawOrigin::Signed(alice.clone()).into(), 0, page)?;
+
+ #[block]
+ {
+ Pallet::<T>::submit_page(RawOrigin::Signed(alice).into(), 0, None)?;
+ }
+
+ Ok(())
+ }
+
+ #[benchmark]
+ fn bail() -> Result<(), BenchmarkError> {
+ CurrentPhase::<T>::put(Phase::Signed);
+ let alice = crate::Pallet::<T>::funded_account("alice", 0);
+
+ // register alice
+ let score = ElectionScore::default();
+ Pallet::<T>::register(RawOrigin::Signed(alice.clone()).into(), score)?;
+
+ // submit all pages
+ for p in 0..T::Pages::get() {
+ let page = Some(Default::default());
+ Pallet::<T>::submit_page(RawOrigin::Signed(alice.clone()).into(), p, page)?;
+ }
+
+ #[block]
+ {
+ Pallet::<T>::bail(RawOrigin::Signed(alice).into())?;
+ }
+
+ Ok(())
+ }
+
+ impl_benchmark_test_suite!(
+ Pallet,
+ crate::mock::ExtBuilder::signed().build_unchecked(),
+ crate::mock::Runtime
+ );
+}
diff --git a/substrate/frame/election-provider-multi-block/src/signed/mod.rs b/substrate/frame/election-provider-multi-block/src/signed/mod.rs
new file mode 100644
index 00000000000..1784a87b224
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/signed/mod.rs
@@ -0,0 +1,858 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! The signed phase of the multi-block election system.
+//!
+//! Signed submissions work on the basis of keeping a queue of submissions from random signed
+//! accounts, and sorting them based on the best claimed score to the worse.
+//!
+//! Once the time to evaluate the signed phase comes (`Phase::SignedValidation`), the solutions are
+//! checked from best-to-worse claim, and they end up in either of the 3 buckets:
+//!
+//! 1. If they are the first, correct solution (and consequently the best one, since we start
+//! evaluating from the best claim), they are rewarded.
+//! 2. Any solution after the first correct solution is refunded in an unbiased way.
+//! 3. Any invalid solution that wasted valuable blockchain time gets slashed for their deposit.
+//!
+//! ## Future Plans:
+//!
+//! **Lazy deletion**:
+//! Overall, this pallet can avoid the need to delete any storage item, by:
+//! 1. outsource the storage of solution data to some other pallet.
+//! 2. keep it here, but make everything be also a map of the round number, so that we can keep old
+//! storage, and it is ONLY EVER removed, when after that round number is over. This can happen
+//! for more or less free by the submitter itself, and by anyone else as well, in which case they
+//! get a share of the the sum deposit. The share increases as times goes on.
+//! **Metadata update**: imagine you mis-computed your score.
+
+// TODO: we should delete this async and once the round is passed.
+// Registration would consequently be as follows:
+// - If you get ejected, and you are lazy removed, a percentage of your deposit is burned. If we set
+// this to 100%, we will not have bad submissions after the queue is full. The queue can be made
+// full by purely an attacker, in which case the sum of deposits should be large enough to cover
+// the fact that we will have a bad election.
+// - whitelisted accounts who will not pay deposits are needed. They can still be ejected, but for
+// free.
+// - Deposit should exponentially increase, and in general we should not allow for more than say 8
+// signed submissions.
+
+use crate::{
+ types::SolutionOf,
+ verifier::{AsynchronousVerifier, SolutionDataProvider, Status, VerificationResult},
+};
+use codec::{Decode, Encode, MaxEncodedLen};
+use frame_election_provider_support::PageIndex;
+use frame_support::{
+ dispatch::DispatchResultWithPostInfo,
+ pallet_prelude::{StorageDoubleMap, ValueQuery, *},
+ traits::{
+ tokens::{
+ fungible::{Inspect, Mutate, MutateHold},
+ Fortitude, Precision,
+ },
+ Defensive, DefensiveSaturating, EstimateCallFee,
+ },
+ transactional, BoundedVec, Twox64Concat,
+};
+use frame_system::{ensure_signed, pallet_prelude::*};
+use scale_info::TypeInfo;
+use sp_io::MultiRemovalResults;
+use sp_npos_elections::ElectionScore;
+use sp_runtime::{traits::Saturating, Perbill};
+use sp_std::prelude::*;
+
+/// Explore all weights
+pub use crate::weights::measured::pallet_election_provider_multi_block_signed::*;
+/// Exports of this pallet
+pub use pallet::*;
+
+#[cfg(feature = "runtime-benchmarks")]
+mod benchmarking;
+
+pub(crate) type SignedWeightsOf<T> = <T as crate::signed::Config>::WeightInfo;
+
+#[cfg(test)]
+mod tests;
+
+type BalanceOf<T> =
+ <<T as Config>::Currency as Inspect<<T as frame_system::Config>::AccountId>>::Balance;
+
+/// All of the (meta) data around a signed submission
+#[derive(Encode, Decode, MaxEncodedLen, TypeInfo, Default, DebugNoBound)]
+#[cfg_attr(test, derive(frame_support::PartialEqNoBound, frame_support::EqNoBound))]
+#[codec(mel_bound(T: Config))]
+#[scale_info(skip_type_params(T))]
+pub struct SubmissionMetadata<T: Config> {
+ /// The amount of deposit that has been held in reserve.
+ deposit: BalanceOf<T>,
+ /// The amount of transaction fee that this submission has cost for its submitter so far.
+ fee: BalanceOf<T>,
+ /// The amount of rewards that we expect to give to this submission, if deemed worthy.
+ reward: BalanceOf<T>,
+ /// The score that this submission is claiming to achieve.
+ claimed_score: ElectionScore,
+ /// A bounded-bool-vec of pages that have been submitted so far.
+ pages: BoundedVec<bool, T::Pages>,
+}
+
+impl<T: Config> SolutionDataProvider for Pallet<T> {
+ type Solution = SolutionOf<T::MinerConfig>;
+
+ fn get_page(page: PageIndex) -> Option<Self::Solution> {
+ // note: a non-existing page will still be treated as merely an empty page. This could be
+ // re-considered.
+ let current_round = Self::current_round();
+ Submissions::<T>::leader(current_round).map(|(who, _score)| {
+ sublog!(info, "signed", "returning page {} of {:?}'s submission as leader.", page, who);
+ Submissions::<T>::get_page_of(current_round, &who, page).unwrap_or_default()
+ })
+ }
+
+ fn get_score() -> Option<ElectionScore> {
+ Submissions::<T>::leader(Self::current_round()).map(|(_who, score)| score)
+ }
+
+ fn report_result(result: crate::verifier::VerificationResult) {
+ // assumption of the trait.
+ debug_assert!(matches!(<T::Verifier as AsynchronousVerifier>::status(), Status::Nothing));
+ let current_round = Self::current_round();
+
+ match result {
+ VerificationResult::Queued => {
+ // defensive: if there is a result to be reported, then we must have had some
+ // leader.
+ if let Some((winner, metadata)) =
+ Submissions::<T>::take_leader_with_data(Self::current_round()).defensive()
+ {
+ // first, let's give them their reward.
+ let reward = metadata.reward.saturating_add(metadata.fee);
+ let _r = T::Currency::mint_into(&winner, reward);
+ debug_assert!(_r.is_ok());
+ Self::deposit_event(Event::<T>::Rewarded(
+ current_round,
+ winner.clone(),
+ reward,
+ ));
+
+ // then, unreserve their deposit
+ let _res = T::Currency::release(
+ &HoldReason::SignedSubmission.into(),
+ &winner,
+ metadata.deposit,
+ Precision::BestEffort,
+ );
+ debug_assert!(_res.is_ok());
+
+ // note: we could wipe this data either over time, or via transactions.
+ while let Some((discarded, metadata)) =
+ Submissions::<T>::take_leader_with_data(Self::current_round())
+ {
+ let _res = T::Currency::release(
+ &HoldReason::SignedSubmission.into(),
+ &discarded,
+ metadata.deposit,
+ Precision::BestEffort,
+ );
+ debug_assert_eq!(_res, Ok(metadata.deposit));
+ Self::deposit_event(Event::<T>::Discarded(current_round, discarded));
+ }
+
+ // everything should have been clean.
+ #[cfg(debug_assertions)]
+ assert!(Submissions::<T>::ensure_killed(current_round).is_ok());
+ }
+ },
+ VerificationResult::Rejected => {
+ // defensive: if there is a result to be reported, then we must have had some
+ // leader.
+ if let Some((loser, metadata)) =
+ Submissions::<T>::take_leader_with_data(Self::current_round()).defensive()
+ {
+ // first, let's slash their deposit.
+ let slash = metadata.deposit;
+ let _res = T::Currency::burn_held(
+ &HoldReason::SignedSubmission.into(),
+ &loser,
+ slash,
+ Precision::BestEffort,
+ Fortitude::Force,
+ );
+ debug_assert_eq!(_res, Ok(slash));
+ Self::deposit_event(Event::<T>::Slashed(current_round, loser.clone(), slash));
+
+ // inform the verifier that they can now try again, if we're still in the signed
+ // validation phase.
+ if crate::Pallet::<T>::current_phase().is_signed_validation() &&
+ Submissions::<T>::has_leader(current_round)
+ {
+ // defensive: verifier just reported back a result, it must be in clear
+ // state.
+ let _ = <T::Verifier as AsynchronousVerifier>::start().defensive();
+ }
+ }
+ },
+ VerificationResult::DataUnavailable => {
+ unreachable!("TODO")
+ },
+ }
+ }
+}
+
+#[frame_support::pallet]
+pub mod pallet {
+ use super::{WeightInfo, *};
+
+ #[pallet::config]
+ #[pallet::disable_frame_system_supertrait_check]
+ pub trait Config: crate::Config {
+ /// The overarching event type.
+ type RuntimeEvent: From<Event<Self>>
+ + IsType<<Self as frame_system::Config>::RuntimeEvent>
+ + TryInto<Event<Self>>;
+
+ /// Handler to the currency.
+ type Currency: Inspect<Self::AccountId>
+ + Mutate<Self::AccountId>
+ + MutateHold<Self::AccountId, Reason = Self::RuntimeHoldReason>;
+
+ /// Base deposit amount for a submission.
+ type DepositBase: Get<BalanceOf<Self>>;
+
+ /// Extra deposit per-page.
+ type DepositPerPage: Get<BalanceOf<Self>>;
+
+ /// Base reward that is given to the winner.
+ type RewardBase: Get<BalanceOf<Self>>;
+
+ /// Maximum number of submissions. This, combined with `SignedValidationPhase` and `Pages`
+ /// dictates how many signed solutions we can verify.
+ type MaxSubmissions: Get<u32>;
+
+ /// The ratio of the deposit to return in case a signed account submits a solution via
+ /// [`Pallet::register`], but later calls [`Pallet::bail`].
+ ///
+ /// This should be large enough to cover for the deletion cost of possible all pages. To be
+ /// safe, you can put it to 100% to begin with to fully dis-incentivize bailing.
+ type BailoutGraceRatio: Get<Perbill>;
+
+ /// Handler to estimate the fee of a call. Useful to refund the transaction fee of the
+ /// submitter for the winner.
+ type EstimateCallFee: EstimateCallFee<Call<Self>, BalanceOf<Self>>;
+
+ /// Overarching hold reason.
+ type RuntimeHoldReason: From<HoldReason>;
+
+ /// Provided weights of this pallet.
+ type WeightInfo: WeightInfo;
+ }
+
+ /// The hold reason of this palelt.
+ #[pallet::composite_enum]
+ pub enum HoldReason {
+ /// Because of submitting a signed solution.
+ #[codec(index = 0)]
+ SignedSubmission,
+ }
+
+ /// Wrapper type for signed submissions.
+ ///
+ /// It handles 3 storage items:
+ ///
+ /// 1. [`SortedScores`]: A flat vector of all submissions' `(submitter_id, claimed_score)`.
+ /// 2. [`SubmissionStorage`]: Paginated map of of all submissions, keyed by submitter and page.
+ /// 3. [`SubmissionMetadataStorage`]: Map from submitter to the metadata of their submission.
+ ///
+ /// All storage items in this group are mapped, and their first key is the `round` to which they
+ /// belong to. In essence, we are storing multiple versions of each group.
+ ///
+ /// ### Invariants:
+ ///
+ /// This storage group is sane, clean, and consistent if the following invariants are held:
+ ///
+ /// Among the submissions of each round:
+ /// - `SortedScores` should never contain duplicate account ids.
+ /// - For any account id in `SortedScores`, a corresponding value should exist in
+ /// `SubmissionMetadataStorage` under that account id's key.
+ /// - And the value of `metadata.score` must be equal to the score stored in
+ /// `SortedScores`.
+ /// - And visa versa: for any key existing in `SubmissionMetadataStorage`, an item must exist in
+ /// `SortedScores`.
+ /// - For any first key existing in `SubmissionStorage`, a key must exist in
+ /// `SubmissionMetadataStorage`.
+ /// - For any first key in `SubmissionStorage`, the number of second keys existing should be the
+ /// same as the `true` count of `pages` in [`SubmissionMetadata`] (this already implies the
+ /// former, since it uses the metadata).
+ ///
+ /// All mutating functions are only allowed to transition into states where all of the above
+ /// conditions are met.
+ ///
+ /// No particular invariant exists between data that related to different rounds. They are
+ /// purely independent.
+ pub(crate) struct Submissions<T: Config>(sp_std::marker::PhantomData<T>);
+
+ #[pallet::storage]
+ type SortedScores<T: Config> = StorageMap<
+ _,
+ Twox64Concat,
+ u32,
+ BoundedVec<(T::AccountId, ElectionScore), T::MaxSubmissions>,
+ ValueQuery,
+ >;
+
+ /// Triple map from (round, account, page) to a solution page.
+ #[pallet::storage]
+ type SubmissionStorage<T: Config> = StorageNMap<
+ _,
+ (
+ NMapKey<Twox64Concat, u32>,
+ NMapKey<Twox64Concat, T::AccountId>,
+ NMapKey<Twox64Concat, PageIndex>,
+ ),
+ SolutionOf<T::MinerConfig>,
+ OptionQuery,
+ >;
+
+ /// Map from account to the metadata of their submission.
+ ///
+ /// invariant: for any Key1 of type `AccountId` in [`Submissions`], this storage map also has a
+ /// value.
+ #[pallet::storage]
+ type SubmissionMetadataStorage<T: Config> =
+ StorageDoubleMap<_, Twox64Concat, u32, Twox64Concat, T::AccountId, SubmissionMetadata<T>>;
+
+ impl<T: Config> Submissions<T> {
+ // -- mutating functions
+
+ /// Generic checked mutation helper.
+ ///
+ /// All mutating functions must be fulled through this bad boy. The round at which the
+ /// mutation happens must be provided
+ fn mutate_checked<R, F: FnOnce() -> R>(_round: u32, mutate: F) -> R {
+ let result = mutate();
+
+ #[cfg(debug_assertions)]
+ {
+ assert!(Self::sanity_check_round(_round).is_ok());
+ assert!(Self::sanity_check_round(_round + 1).is_ok());
+ assert!(Self::sanity_check_round(_round.saturating_sub(1)).is_ok());
+ }
+
+ result
+ }
+
+ /// *Fully* **TAKE** (i.e. get and remove) the leader from storage, with all of its
+ /// associated data.
+ ///
+ /// This removes all associated data of the leader from storage, discarding the submission
+ /// data and score, returning the rest.
+ pub(crate) fn take_leader_with_data(
+ round: u32,
+ ) -> Option<(T::AccountId, SubmissionMetadata<T>)> {
+ Self::mutate_checked(round, || {
+ SortedScores::<T>::mutate(round, |sorted| sorted.pop()).and_then(
+ |(submitter, _score)| {
+ // NOTE: safe to remove unbounded, as at most `Pages` pages are stored.
+ let r: MultiRemovalResults = SubmissionStorage::<T>::clear_prefix(
+ (round, &submitter),
+ u32::MAX,
+ None,
+ );
+ debug_assert!(r.unique <= T::Pages::get());
+
+ SubmissionMetadataStorage::<T>::take(round, &submitter)
+ .map(|metadata| (submitter, metadata))
+ },
+ )
+ })
+ }
+
+ /// *Fully* **TAKE** (i.e. get and remove) a submission from storage, with all of its
+ /// associated data.
+ ///
+ /// This removes all associated data of the submitter from storage, discarding the
+ /// submission data and score, returning the metadata.
+ pub(crate) fn take_submission_with_data(
+ round: u32,
+ who: &T::AccountId,
+ ) -> Option<SubmissionMetadata<T>> {
+ Self::mutate_checked(round, || {
+ SortedScores::<T>::mutate(round, |sorted_scores| {
+ if let Some(index) = sorted_scores.iter().position(|(x, _)| x == who) {
+ sorted_scores.remove(index);
+ }
+ });
+ // Note: safe to remove unbounded, as at most `Pages` pages are stored.
+ let r = SubmissionStorage::<T>::clear_prefix((round, who), u32::MAX, None);
+ debug_assert!(r.unique <= T::Pages::get());
+
+ SubmissionMetadataStorage::<T>::take(round, who)
+ })
+ }
+
+ /// Try and register a new solution.
+ ///
+ /// Registration can only happen for the current round.
+ ///
+ /// registration might fail if the queue is already full, and the solution is not good
+ /// enough to eject the weakest.
+ fn try_register(
+ round: u32,
+ who: &T::AccountId,
+ metadata: SubmissionMetadata<T>,
+ ) -> Result<bool, DispatchError> {
+ Self::mutate_checked(round, || Self::try_register_inner(round, who, metadata))
+ }
+
+ fn try_register_inner(
+ round: u32,
+ who: &T::AccountId,
+ metadata: SubmissionMetadata<T>,
+ ) -> Result<bool, DispatchError> {
+ let mut sorted_scores = SortedScores::<T>::get(round);
+
+ let discarded = if let Some(_) = sorted_scores.iter().position(|(x, _)| x == who) {
+ return Err(Error::<T>::Duplicate.into());
+ } else {
+ // must be new.
+ debug_assert!(!SubmissionMetadataStorage::<T>::contains_key(round, who));
+
+ let pos = match sorted_scores
+ .binary_search_by_key(&metadata.claimed_score, |(_, y)| *y)
+ {
+ // an equal score exists, unlikely, but could very well happen. We just put them
+ // next to each other.
+ Ok(pos) => pos,
+ // new score, should be inserted in this pos.
+ Err(pos) => pos,
+ };
+
+ let record = (who.clone(), metadata.claimed_score);
+ match sorted_scores.force_insert_keep_right(pos, record) {
+ Ok(None) => false,
+ Ok(Some((discarded, _score))) => {
+ let metadata = SubmissionMetadataStorage::<T>::take(round, &discarded);
+ // Note: safe to remove unbounded, as at most `Pages` pages are stored.
+ let _r = SubmissionStorage::<T>::clear_prefix(
+ (round, &discarded),
+ u32::MAX,
+ None,
+ );
+ debug_assert!(_r.unique <= T::Pages::get());
+ let to_refund = metadata.map(|m| m.deposit).defensive_unwrap_or_default();
+ let _released = T::Currency::release(
+ &HoldReason::SignedSubmission.into(),
+ &discarded,
+ to_refund,
+ Precision::BestEffort,
+ )?;
+ debug_assert_eq!(_released, to_refund);
+ Pallet::<T>::deposit_event(Event::<T>::Discarded(round, discarded));
+ true
+ },
+ Err(_) => return Err(Error::<T>::QueueFull.into()),
+ }
+ };
+
+ SortedScores::<T>::insert(round, sorted_scores);
+ SubmissionMetadataStorage::<T>::insert(round, who, metadata);
+ Ok(discarded)
+ }
+
+ /// Submit a page of `solution` to the `page` index of `who`'s submission.
+ ///
+ /// Updates the deposit in the metadata accordingly.
+ ///
+ /// - If `maybe_solution` is `None`, then the given page is deleted.
+ /// - `who` must have already registered their submission.
+ /// - If the page is duplicate, it will replaced.
+ pub(crate) fn try_mutate_page(
+ round: u32,
+ who: &T::AccountId,
+ page: PageIndex,
+ maybe_solution: Option<Box<SolutionOf<T::MinerConfig>>>,
+ ) -> DispatchResultWithPostInfo {
+ Self::mutate_checked(round, || {
+ Self::try_mutate_page_inner(round, who, page, maybe_solution)
+ })
+ }
+
+ fn try_mutate_page_inner(
+ round: u32,
+ who: &T::AccountId,
+ page: PageIndex,
+ maybe_solution: Option<Box<SolutionOf<T::MinerConfig>>>,
+ ) -> DispatchResultWithPostInfo {
+ let mut metadata =
+ SubmissionMetadataStorage::<T>::get(round, who).ok_or(Error::<T>::NotRegistered)?;
+ ensure!(page < T::Pages::get(), Error::<T>::BadPageIndex);
+
+ // defensive only: we resize `meta.pages` once to be `T::Pages` elements once, and never
+ // resize it again; `page` is checked here to be in bound; element must exist; qed.
+ if let Some(page_bit) = metadata.pages.get_mut(page as usize).defensive() {
+ *page_bit = maybe_solution.is_some();
+ }
+
+ // update deposit.
+ let new_pages: BalanceOf<T> =
+ (metadata.pages.iter().filter(|x| **x).count() as u32).into();
+ let new_deposit = T::DepositBase::get() + T::DepositPerPage::get() * new_pages;
+ let old_deposit = metadata.deposit;
+ if new_deposit > old_deposit {
+ let to_reserve = new_deposit - old_deposit;
+ T::Currency::hold(&HoldReason::SignedSubmission.into(), who, to_reserve)?;
+ } else {
+ let to_unreserve = old_deposit - new_deposit;
+ let _res = T::Currency::release(
+ &HoldReason::SignedSubmission.into(),
+ who,
+ to_unreserve,
+ Precision::BestEffort,
+ );
+ debug_assert_eq!(_res, Ok(to_unreserve));
+ };
+ metadata.deposit = new_deposit;
+
+ // If a page is being added, we record the fee as well. For removals, we ignore the fee
+ // as it is negligible, and we don't want to encourage anyone to submit and remove
+ // anyways. Note that fee is only refunded for the winner anyways.
+ if maybe_solution.is_some() {
+ let fee = T::EstimateCallFee::estimate_call_fee(
+ &Call::submit_page { page, maybe_solution: maybe_solution.clone() },
+ None.into(),
+ );
+ metadata.fee.saturating_accrue(fee);
+ }
+
+ SubmissionStorage::<T>::mutate_exists((round, who, page), |maybe_old_solution| {
+ *maybe_old_solution = maybe_solution.map(|s| *s)
+ });
+ SubmissionMetadataStorage::<T>::insert(round, who, metadata);
+ Ok(().into())
+ }
+
+ // -- getter functions
+ pub(crate) fn has_leader(round: u32) -> bool {
+ !SortedScores::<T>::get(round).is_empty()
+ }
+
+ pub(crate) fn leader(round: u32) -> Option<(T::AccountId, ElectionScore)> {
+ SortedScores::<T>::get(round).last().cloned()
+ }
+
+ pub(crate) fn get_page_of(
+ round: u32,
+ who: &T::AccountId,
+ page: PageIndex,
+ ) -> Option<SolutionOf<T::MinerConfig>> {
+ SubmissionStorage::<T>::get((round, who, &page))
+ }
+ }
+
+ #[allow(unused)]
+ #[cfg(any(feature = "try-runtime", test, feature = "runtime-benchmarks", debug_assertions))]
+ impl<T: Config> Submissions<T> {
+ pub(crate) fn sorted_submitters(round: u32) -> BoundedVec<T::AccountId, T::MaxSubmissions> {
+ use frame_support::traits::TryCollect;
+ SortedScores::<T>::get(round).into_iter().map(|(x, _)| x).try_collect().unwrap()
+ }
+
+ pub fn submissions_iter(
+ round: u32,
+ ) -> impl Iterator<Item = (T::AccountId, PageIndex, SolutionOf<T::MinerConfig>)> {
+ SubmissionStorage::<T>::iter_prefix((round,)).map(|((x, y), z)| (x, y, z))
+ }
+
+ pub fn metadata_iter(
+ round: u32,
+ ) -> impl Iterator<Item = (T::AccountId, SubmissionMetadata<T>)> {
+ SubmissionMetadataStorage::<T>::iter_prefix(round)
+ }
+
+ pub fn metadata_of(round: u32, who: T::AccountId) -> Option<SubmissionMetadata<T>> {
+ SubmissionMetadataStorage::<T>::get(round, who)
+ }
+
+ pub fn pages_of(
+ round: u32,
+ who: T::AccountId,
+ ) -> impl Iterator<Item = (PageIndex, SolutionOf<T::MinerConfig>)> {
+ SubmissionStorage::<T>::iter_prefix((round, who))
+ }
+
+ pub fn leaderboard(
+ round: u32,
+ ) -> BoundedVec<(T::AccountId, ElectionScore), T::MaxSubmissions> {
+ SortedScores::<T>::get(round)
+ }
+
+ /// Ensure that all the storage items associated with the given round are in `killed` state,
+ /// meaning that in the expect state after an election is OVER.
+ pub(crate) fn ensure_killed(round: u32) -> DispatchResult {
+ ensure!(Self::metadata_iter(round).count() == 0, "metadata_iter not cleared.");
+ ensure!(Self::submissions_iter(round).count() == 0, "submissions_iter not cleared.");
+ ensure!(Self::sorted_submitters(round).len() == 0, "sorted_submitters not cleared.");
+
+ Ok(())
+ }
+
+ /// Perform all the sanity checks of this storage item group at the given round.
+ pub(crate) fn sanity_check_round(round: u32) -> DispatchResult {
+ use sp_std::collections::btree_set::BTreeSet;
+ let sorted_scores = SortedScores::<T>::get(round);
+ assert_eq!(
+ sorted_scores.clone().into_iter().map(|(x, _)| x).collect::<BTreeSet<_>>().len(),
+ sorted_scores.len()
+ );
+
+ let _ = SubmissionMetadataStorage::<T>::iter_prefix(round)
+ .map(|(submitter, meta)| {
+ let mut matches = SortedScores::<T>::get(round)
+ .into_iter()
+ .filter(|(who, _score)| who == &submitter)
+ .collect::<Vec<_>>();
+
+ ensure!(
+ matches.len() == 1,
+ "item existing in metadata but missing in sorted list.",
+ );
+
+ let (_, score) = matches.pop().expect("checked; qed");
+ ensure!(score == meta.claimed_score, "score mismatch");
+ Ok(())
+ })
+ .collect::<Result<Vec<_>, &'static str>>()?;
+
+ ensure!(
+ SubmissionStorage::<T>::iter_key_prefix((round,)).map(|(k1, _k2)| k1).all(
+ |submitter| SubmissionMetadataStorage::<T>::contains_key(round, submitter)
+ ),
+ "missing metadata of submitter"
+ );
+
+ for submitter in SubmissionStorage::<T>::iter_key_prefix((round,)).map(|(k1, _k2)| k1) {
+ let pages_count =
+ SubmissionStorage::<T>::iter_key_prefix((round, &submitter)).count();
+ let metadata = SubmissionMetadataStorage::<T>::get(round, submitter)
+ .expect("metadata checked to exist for all keys; qed");
+ let assumed_pages_count = metadata.pages.iter().filter(|x| **x).count();
+ ensure!(pages_count == assumed_pages_count, "wrong page count");
+ }
+
+ Ok(())
+ }
+ }
+
+ #[pallet::pallet]
+ pub struct Pallet<T>(PhantomData<T>);
+
+ #[pallet::event]
+ #[pallet::generate_deposit(pub(super) fn deposit_event)]
+ pub enum Event<T: Config> {
+ /// Upcoming submission has been registered for the given account, with the given score.
+ Registered(u32, T::AccountId, ElectionScore),
+ /// A page of solution solution with the given index has been stored for the given account.
+ Stored(u32, T::AccountId, PageIndex),
+ /// The given account has been rewarded with the given amount.
+ Rewarded(u32, T::AccountId, BalanceOf<T>),
+ /// The given account has been slashed with the given amount.
+ Slashed(u32, T::AccountId, BalanceOf<T>),
+ /// The given account has been discarded.
+ Discarded(u32, T::AccountId),
+ /// The given account has bailed.
+ Bailed(u32, T::AccountId),
+ }
+
+ #[pallet::error]
+ pub enum Error<T> {
+ /// The phase is not signed.
+ PhaseNotSigned,
+ /// The submission is a duplicate.
+ Duplicate,
+ /// The queue is full.
+ QueueFull,
+ /// The page index is out of bounds.
+ BadPageIndex,
+ /// The account is not registered.
+ NotRegistered,
+ /// No submission found.
+ NoSubmission,
+ }
+
+ #[pallet::call]
+ impl<T: Config> Pallet<T> {
+ /// Register oneself for an upcoming signed election.
+ #[pallet::weight(SignedWeightsOf::<T>::register_eject())]
+ #[pallet::call_index(0)]
+ pub fn register(
+ origin: OriginFor<T>,
+ claimed_score: ElectionScore,
+ ) -> DispatchResultWithPostInfo {
+ let who = ensure_signed(origin)?;
+ ensure!(crate::Pallet::<T>::current_phase().is_signed(), Error::<T>::PhaseNotSigned);
+
+ // note: we could already check if this is a duplicate here, but prefer keeping the code
+ // simple for now.
+
+ let deposit = T::DepositBase::get();
+ let reward = T::RewardBase::get();
+ let fee = T::EstimateCallFee::estimate_call_fee(
+ &Call::register { claimed_score },
+ None.into(),
+ );
+ let mut pages = BoundedVec::<_, _>::with_bounded_capacity(T::Pages::get() as usize);
+ pages.bounded_resize(T::Pages::get() as usize, false);
+
+ let new_metadata = SubmissionMetadata { claimed_score, deposit, reward, fee, pages };
+
+ T::Currency::hold(&HoldReason::SignedSubmission.into(), &who, deposit)?;
+ let round = Self::current_round();
+ let discarded = Submissions::<T>::try_register(round, &who, new_metadata)?;
+ Self::deposit_event(Event::<T>::Registered(round, who, claimed_score));
+
+ // maybe refund.
+ if discarded {
+ Ok(().into())
+ } else {
+ Ok(Some(SignedWeightsOf::<T>::register_not_full()).into())
+ }
+ }
+
+ /// Submit a single page of a solution.
+ ///
+ /// Must always come after [`Pallet::register`].
+ ///
+ /// `maybe_solution` can be set to `None` to erase the page.
+ ///
+ /// Collects deposits from the signed origin based on [`Config::DepositBase`] and
+ /// [`Config::DepositPerPage`].
+ #[pallet::weight(SignedWeightsOf::<T>::submit_page())]
+ #[pallet::call_index(1)]
+ pub fn submit_page(
+ origin: OriginFor<T>,
+ page: PageIndex,
+ maybe_solution: Option<Box<SolutionOf<T::MinerConfig>>>,
+ ) -> DispatchResultWithPostInfo {
+ let who = ensure_signed(origin)?;
+ ensure!(crate::Pallet::<T>::current_phase().is_signed(), Error::<T>::PhaseNotSigned);
+ let is_set = maybe_solution.is_some();
+
+ let round = Self::current_round();
+ Submissions::<T>::try_mutate_page(round, &who, page, maybe_solution)?;
+ Self::deposit_event(Event::<T>::Stored(round, who, page));
+
+ // maybe refund.
+ if is_set {
+ Ok(().into())
+ } else {
+ Ok(Some(SignedWeightsOf::<T>::unset_page()).into())
+ }
+ }
+
+ /// Retract a submission.
+ ///
+ /// A portion of the deposit may be returned, based on the [`Config::BailoutGraceRatio`].
+ ///
+ /// This will fully remove the solution from storage.
+ #[pallet::weight(SignedWeightsOf::<T>::bail())]
+ #[pallet::call_index(2)]
+ #[transactional]
+ pub fn bail(origin: OriginFor<T>) -> DispatchResultWithPostInfo {
+ let who = ensure_signed(origin)?;
+ ensure!(crate::Pallet::<T>::current_phase().is_signed(), Error::<T>::PhaseNotSigned);
+ let round = Self::current_round();
+ let metadata = Submissions::<T>::take_submission_with_data(round, &who)
+ .ok_or(Error::<T>::NoSubmission)?;
+
+ let deposit = metadata.deposit;
+ let to_refund = T::BailoutGraceRatio::get() * deposit;
+ let to_slash = deposit.defensive_saturating_sub(to_refund);
+
+ let _res = T::Currency::release(
+ &HoldReason::SignedSubmission.into(),
+ &who,
+ to_refund,
+ Precision::BestEffort,
+ )
+ .defensive();
+ debug_assert_eq!(_res, Ok(to_refund));
+
+ let _res = T::Currency::burn_held(
+ &HoldReason::SignedSubmission.into(),
+ &who,
+ to_slash,
+ Precision::BestEffort,
+ Fortitude::Force,
+ )
+ .defensive();
+ debug_assert_eq!(_res, Ok(to_slash));
+
+ Self::deposit_event(Event::<T>::Bailed(round, who));
+
+ Ok(None.into())
+ }
+ }
+
+ #[pallet::hooks]
+ impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {
+ fn on_initialize(now: BlockNumberFor<T>) -> Weight {
+ // this code is only called when at the boundary of phase transition, which is already
+ // captured by the parent pallet. No need for weight.
+ let weight_taken_into_account: Weight = Default::default();
+
+ if crate::Pallet::<T>::current_phase().is_signed_validation_open_at(now) {
+ let maybe_leader = Submissions::<T>::leader(Self::current_round());
+ sublog!(
+ info,
+ "signed",
+ "signed validation started, sending validation start signal? {:?}",
+ maybe_leader.is_some()
+ );
+
+ // start an attempt to verify our best thing.
+ if maybe_leader.is_some() {
+ // defensive: signed phase has just began, verifier should be in a clear state
+ // and ready to accept a solution.
+ let _ = <T::Verifier as AsynchronousVerifier>::start().defensive();
+ }
+ }
+
+ if crate::Pallet::<T>::current_phase().is_unsigned_open_at(now) {
+ // signed validation phase just ended, make sure you stop any ongoing operation.
+ sublog!(info, "signed", "signed validation ended, sending validation stop signal",);
+ <T::Verifier as AsynchronousVerifier>::stop();
+ }
+
+ weight_taken_into_account
+ }
+
+ #[cfg(feature = "try-runtime")]
+ fn try_state(n: BlockNumberFor<T>) -> Result<(), sp_runtime::TryRuntimeError> {
+ Self::do_try_state(n)
+ }
+ }
+}
+
+impl<T: Config> Pallet<T> {
+ #[cfg(any(feature = "try-runtime", test, feature = "runtime-benchmarks"))]
+ pub(crate) fn do_try_state(_n: BlockNumberFor<T>) -> Result<(), sp_runtime::TryRuntimeError> {
+ Submissions::<T>::sanity_check_round(Self::current_round())
+ }
+
+ fn current_round() -> u32 {
+ crate::Pallet::<T>::round()
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/signed/tests.rs b/substrate/frame/election-provider-multi-block/src/signed/tests.rs
new file mode 100644
index 00000000000..7d0b1652c1e
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/signed/tests.rs
@@ -0,0 +1,554 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use super::{Event as SignedEvent, *};
+use crate::{mock::*, verifier::FeasibilityError};
+use sp_core::bounded_vec;
+
+pub type T = Runtime;
+
+mod calls {
+ use super::*;
+ use crate::Phase;
+ use sp_runtime::{DispatchError, TokenError::FundsUnavailable};
+
+ #[test]
+ fn cannot_register_with_insufficient_balance() {
+ ExtBuilder::signed().build_and_execute(|| {
+ roll_to_signed_open();
+ // 777 is not funded.
+ assert_noop!(
+ SignedPallet::register(RuntimeOrigin::signed(777), Default::default()),
+ DispatchError::Token(FundsUnavailable)
+ );
+ });
+
+ ExtBuilder::signed().build_and_execute(|| {
+ roll_to_signed_open();
+ // 99 is funded but deposit is too high.
+ assert_eq!(balances(99), (100, 0));
+ SignedDepositBase::set(101);
+ assert_noop!(
+ SignedPallet::register(RuntimeOrigin::signed(99), Default::default()),
+ DispatchError::Token(FundsUnavailable)
+ );
+ })
+ }
+
+ #[test]
+ fn cannot_register_if_not_signed() {
+ ExtBuilder::signed().build_and_execute(|| {
+ assert!(crate::Pallet::<T>::current_phase() != Phase::Signed);
+ assert_noop!(
+ SignedPallet::register(RuntimeOrigin::signed(99), Default::default()),
+ Error::<T>::PhaseNotSigned
+ );
+ })
+ }
+
+ #[test]
+ fn register_metadata_works() {
+ ExtBuilder::signed().build_and_execute(|| {
+ roll_to_signed_open();
+ assert_full_snapshot();
+
+ assert_eq!(balances(99), (100, 0));
+ let score = ElectionScore { minimal_stake: 100, ..Default::default() };
+
+ assert_ok!(SignedPallet::register(RuntimeOrigin::signed(99), score));
+ assert_eq!(balances(99), (95, 5));
+
+ assert_eq!(Submissions::<Runtime>::metadata_iter(1).count(), 0);
+ assert_eq!(Submissions::<Runtime>::metadata_iter(0).count(), 1);
+ assert_eq!(
+ Submissions::<Runtime>::metadata_of(0, 99).unwrap(),
+ SubmissionMetadata {
+ claimed_score: score,
+ deposit: 5,
+ fee: 1,
+ pages: bounded_vec![false, false, false],
+ reward: 3
+ }
+ );
+ assert_eq!(
+ *Submissions::<Runtime>::leaderboard(0),
+ vec![(99, ElectionScore { minimal_stake: 100, ..Default::default() })]
+ );
+ assert!(matches!(signed_events().as_slice(), &[
+ SignedEvent::Registered(_, x, _),
+ ] if x == 99));
+
+ // second ones submits
+ assert_eq!(balances(999), (100, 0));
+ let score = ElectionScore { minimal_stake: 90, ..Default::default() };
+ assert_ok!(SignedPallet::register(RuntimeOrigin::signed(999), score));
+ assert_eq!(balances(999), (95, 5));
+
+ assert_eq!(
+ Submissions::<Runtime>::metadata_of(0, 999).unwrap(),
+ SubmissionMetadata {
+ claimed_score: score,
+ deposit: 5,
+ fee: 1,
+ pages: bounded_vec![false, false, false],
+ reward: 3
+ }
+ );
+ assert!(matches!(signed_events().as_slice(), &[
+ SignedEvent::Registered(..),
+ SignedEvent::Registered(_, x, _),
+ ] if x == 999));
+
+ assert_eq!(
+ *Submissions::<Runtime>::leaderboard(0),
+ vec![
+ (999, ElectionScore { minimal_stake: 90, ..Default::default() }),
+ (99, ElectionScore { minimal_stake: 100, ..Default::default() })
+ ]
+ );
+ assert_eq!(Submissions::<Runtime>::metadata_iter(1).count(), 0);
+ assert_eq!(Submissions::<Runtime>::metadata_iter(0).count(), 2);
+
+ // submit again with a new score.
+ assert_noop!(
+ SignedPallet::register(
+ RuntimeOrigin::signed(999),
+ ElectionScore { minimal_stake: 80, ..Default::default() }
+ ),
+ Error::<T>::Duplicate,
+ );
+ })
+ }
+
+ #[test]
+ fn page_submission_accumulates_fee() {
+ ExtBuilder::signed().build_and_execute(|| {
+ roll_to_signed_open();
+ assert_full_snapshot();
+
+ let score = ElectionScore { minimal_stake: 100, ..Default::default() };
+ assert_ok!(SignedPallet::register(RuntimeOrigin::signed(99), score));
+
+ // fee for register is recorded.
+ assert_eq!(
+ Submissions::<Runtime>::metadata_of(0, 99).unwrap(),
+ SubmissionMetadata {
+ claimed_score: score,
+ deposit: 5,
+ fee: 1,
+ pages: bounded_vec![false, false, false],
+ reward: 3
+ }
+ );
+
+ // fee for page submission is recorded.
+ assert_ok!(SignedPallet::submit_page(
+ RuntimeOrigin::signed(99),
+ 0,
+ Some(Default::default())
+ ));
+ assert_eq!(
+ Submissions::<Runtime>::metadata_of(0, 99).unwrap(),
+ SubmissionMetadata {
+ claimed_score: score,
+ deposit: 6,
+ fee: 2,
+ pages: bounded_vec![true, false, false],
+ reward: 3
+ }
+ );
+
+ // another fee for page submission is recorded.
+ assert_ok!(SignedPallet::submit_page(
+ RuntimeOrigin::signed(99),
+ 1,
+ Some(Default::default())
+ ));
+ assert_eq!(
+ Submissions::<Runtime>::metadata_of(0, 99).unwrap(),
+ SubmissionMetadata {
+ claimed_score: score,
+ deposit: 7,
+ fee: 3,
+ pages: bounded_vec![true, true, false],
+ reward: 3
+ }
+ );
+
+ // removal updates deposit but not the fee
+ assert_ok!(SignedPallet::submit_page(RuntimeOrigin::signed(99), 1, None));
+
+ assert_eq!(
+ Submissions::<Runtime>::metadata_of(0, 99).unwrap(),
+ SubmissionMetadata {
+ claimed_score: score,
+ deposit: 6,
+ fee: 3,
+ pages: bounded_vec![true, false, false],
+ reward: 3
+ }
+ );
+ });
+ }
+
+ #[test]
+ fn metadata_submission_sorted_based_on_stake() {
+ ExtBuilder::signed().build_and_execute(|| {
+ roll_to_signed_open();
+ assert_full_snapshot();
+
+ let score_from = |x| ElectionScore { minimal_stake: x, ..Default::default() };
+ let assert_held = |x| assert_eq!(balances(x), (95, 5));
+ let assert_unheld = |x| assert_eq!(balances(x), (100, 0));
+
+ assert_ok!(SignedPallet::register(RuntimeOrigin::signed(91), score_from(100)));
+ assert_eq!(*Submissions::<Runtime>::leaderboard(0), vec![(91, score_from(100))]);
+ assert_held(91);
+ assert!(
+ matches!(signed_events().as_slice(), &[SignedEvent::Registered(_, x, _)] if x == 91)
+ );
+
+ // weaker one comes while we have space.
+ assert_ok!(SignedPallet::register(RuntimeOrigin::signed(92), score_from(90)));
+ assert_eq!(
+ *Submissions::<Runtime>::leaderboard(0),
+ vec![(92, score_from(90)), (91, score_from(100))]
+ );
+ assert_held(92);
+ assert!(matches!(signed_events().as_slice(), &[
+ SignedEvent::Registered(..),
+ SignedEvent::Registered(_, x, _),
+ ] if x == 92));
+
+ // stronger one comes while we have have space.
+ assert_ok!(SignedPallet::register(RuntimeOrigin::signed(93), score_from(110)));
+ assert_eq!(
+ *Submissions::<Runtime>::leaderboard(0),
+ vec![(92, score_from(90)), (91, score_from(100)), (93, score_from(110))]
+ );
+ assert_held(93);
+ assert!(matches!(signed_events().as_slice(), &[
+ SignedEvent::Registered(..),
+ SignedEvent::Registered(..),
+ SignedEvent::Registered(_, x, _),
+ ] if x == 93));
+
+ // weaker one comes while we don't have space.
+ assert_noop!(
+ SignedPallet::register(RuntimeOrigin::signed(94), score_from(80)),
+ Error::<T>::QueueFull
+ );
+ assert_eq!(
+ *Submissions::<Runtime>::leaderboard(0),
+ vec![(92, score_from(90)), (91, score_from(100)), (93, score_from(110))]
+ );
+ assert_unheld(94);
+ // no event has been emitted this time.
+ assert!(matches!(
+ signed_events().as_slice(),
+ &[
+ SignedEvent::Registered(..),
+ SignedEvent::Registered(..),
+ SignedEvent::Registered(..),
+ ]
+ ));
+
+ // stronger one comes while we don't have space. Eject the weakest
+ assert_ok!(SignedPallet::register(RuntimeOrigin::signed(94), score_from(120)));
+ assert_eq!(
+ *Submissions::<Runtime>::leaderboard(0),
+ vec![(91, score_from(100)), (93, score_from(110)), (94, score_from(120))]
+ );
+ assert!(matches!(
+ signed_events().as_slice(),
+ &[
+ SignedEvent::Registered(..),
+ SignedEvent::Registered(..),
+ SignedEvent::Registered(..),
+ SignedEvent::Discarded(_, 92),
+ SignedEvent::Registered(_, 94, _),
+ ]
+ ));
+ assert_held(94);
+ assert_unheld(92);
+
+ // another stronger one comes, only replace the weakest.
+ assert_ok!(SignedPallet::register(RuntimeOrigin::signed(95), score_from(105)));
+ assert_eq!(
+ *Submissions::<Runtime>::leaderboard(0),
+ vec![(95, score_from(105)), (93, score_from(110)), (94, score_from(120))]
+ );
+ assert_held(95);
+ assert_unheld(91);
+ assert!(matches!(
+ signed_events().as_slice(),
+ &[
+ SignedEvent::Registered(..),
+ SignedEvent::Registered(..),
+ SignedEvent::Registered(..),
+ SignedEvent::Discarded(..),
+ SignedEvent::Registered(..),
+ SignedEvent::Discarded(_, 91),
+ SignedEvent::Registered(_, 95, _),
+ ]
+ ));
+ })
+ }
+
+ #[test]
+ fn can_bail_at_a_cost() {
+ ExtBuilder::signed().build_and_execute(|| {
+ roll_to_signed_open();
+ assert_full_snapshot();
+
+ let score = ElectionScore { minimal_stake: 100, ..Default::default() };
+ assert_ok!(SignedPallet::register(RuntimeOrigin::signed(99), score));
+ assert_eq!(balances(99), (95, 5));
+
+ // not submitted, cannot bailout.
+ assert_noop!(SignedPallet::bail(RuntimeOrigin::signed(999)), Error::<T>::NoSubmission);
+
+ // can bail.
+ assert_ok!(SignedPallet::bail(RuntimeOrigin::signed(99)));
+ // 20% of the deposit returned, which is 1, 4 is slashed.
+ assert_eq!(balances(99), (96, 0));
+ assert_no_data_for(0, 99);
+
+ assert_eq!(
+ signed_events(),
+ vec![Event::Registered(0, 99, score), Event::Bailed(0, 99)]
+ );
+ });
+ }
+
+ #[test]
+ fn can_submit_pages() {
+ ExtBuilder::signed().build_and_execute(|| {
+ roll_to_signed_open();
+ assert_full_snapshot();
+
+ assert_noop!(
+ SignedPallet::submit_page(RuntimeOrigin::signed(99), 0, Default::default()),
+ Error::<T>::NotRegistered
+ );
+
+ assert_ok!(SignedPallet::register(
+ RuntimeOrigin::signed(99),
+ ElectionScore { minimal_stake: 100, ..Default::default() }
+ ));
+
+ assert_eq!(Submissions::<Runtime>::pages_of(0, 99).count(), 0);
+ assert_eq!(balances(99), (95, 5));
+
+ // indices 0, 1, 2 are valid.
+ assert_noop!(
+ SignedPallet::submit_page(RuntimeOrigin::signed(99), 3, Default::default()),
+ Error::<T>::BadPageIndex
+ );
+
+ // add the first page.
+ assert_ok!(SignedPallet::submit_page(
+ RuntimeOrigin::signed(99),
+ 0,
+ Some(Default::default())
+ ));
+ assert_eq!(Submissions::<Runtime>::pages_of(0, 99).count(), 1);
+ assert_eq!(balances(99), (94, 6));
+ assert_eq!(
+ Submissions::<Runtime>::metadata_of(0, 99).unwrap().pages.into_inner(),
+ vec![true, false, false]
+ );
+
+ // replace it again, nada.
+ assert_ok!(SignedPallet::submit_page(
+ RuntimeOrigin::signed(99),
+ 0,
+ Some(Default::default())
+ ));
+ assert_eq!(Submissions::<Runtime>::pages_of(0, 99).count(), 1);
+ assert_eq!(balances(99), (94, 6));
+
+ // add a new one.
+ assert_ok!(SignedPallet::submit_page(
+ RuntimeOrigin::signed(99),
+ 1,
+ Some(Default::default())
+ ));
+ assert_eq!(Submissions::<Runtime>::pages_of(0, 99).count(), 2);
+ assert_eq!(balances(99), (93, 7));
+ assert_eq!(
+ Submissions::<Runtime>::metadata_of(0, 99).unwrap().pages.into_inner(),
+ vec![true, true, false]
+ );
+
+ // remove one, deposit is back.
+ assert_ok!(SignedPallet::submit_page(RuntimeOrigin::signed(99), 0, None));
+ assert_eq!(Submissions::<Runtime>::pages_of(0, 99).count(), 1);
+ assert_eq!(balances(99), (94, 6));
+ assert_eq!(
+ Submissions::<Runtime>::metadata_of(0, 99).unwrap().pages.into_inner(),
+ vec![false, true, false]
+ );
+
+ assert!(matches!(
+ signed_events().as_slice(),
+ &[
+ SignedEvent::Registered(..),
+ SignedEvent::Stored(.., 0),
+ SignedEvent::Stored(.., 0),
+ SignedEvent::Stored(.., 1),
+ SignedEvent::Stored(.., 0),
+ ]
+ ));
+ });
+ }
+}
+
+mod e2e {
+ use super::*;
+ #[test]
+ fn good_bad_evil() {
+ // an extensive scenario: 3 solutions submitted, once rewarded, one slashed, and one
+ // discarded.
+ ExtBuilder::signed().build_and_execute(|| {
+ roll_to_signed_open();
+ assert_full_snapshot();
+
+ // an invalid, but weak solution.
+ {
+ let score =
+ ElectionScore { minimal_stake: 10, sum_stake: 10, sum_stake_squared: 100 };
+ assert_ok!(SignedPallet::register(RuntimeOrigin::signed(99), score));
+ assert_ok!(SignedPallet::submit_page(
+ RuntimeOrigin::signed(99),
+ 0,
+ Some(Default::default())
+ ));
+
+ assert_eq!(balances(99), (94, 6));
+ }
+
+ // a valid, strong solution.
+ let strong_score = {
+ let paged = mine_full_solution().unwrap();
+ load_signed_for_verification(999, paged.clone());
+ assert_eq!(balances(999), (92, 8));
+ paged.score
+ };
+
+ // an invalid, strong solution.
+ {
+ let mut score = strong_score;
+ score.minimal_stake *= 2;
+ assert_ok!(SignedPallet::register(RuntimeOrigin::signed(92), score));
+ assert_eq!(balances(92), (95, 5));
+ // we don't even bother to submit a page..
+ }
+
+ assert_eq!(
+ Submissions::<Runtime>::leaderboard(0)
+ .into_iter()
+ .map(|(x, _)| x)
+ .collect::<Vec<_>>(),
+ vec![99, 999, 92]
+ );
+
+ roll_to_signed_validation_open();
+
+ // 92 is slashed in 3 blocks, 999 becomes rewarded in 3 blocks, , and 99 is discarded.
+ roll_next();
+ roll_next();
+ roll_next();
+
+ assert_eq!(
+ Submissions::<Runtime>::leaderboard(0)
+ .into_iter()
+ .map(|(x, _)| x)
+ .collect::<Vec<_>>(),
+ vec![99, 999]
+ );
+
+ roll_next();
+ roll_next();
+ roll_next();
+
+ assert_eq!(
+ signed_events(),
+ vec![
+ Event::Registered(
+ 0,
+ 99,
+ ElectionScore { minimal_stake: 10, sum_stake: 10, sum_stake_squared: 100 }
+ ),
+ Event::Stored(0, 99, 0),
+ Event::Registered(
+ 0,
+ 999,
+ ElectionScore {
+ minimal_stake: 55,
+ sum_stake: 130,
+ sum_stake_squared: 8650
+ }
+ ),
+ Event::Stored(0, 999, 0),
+ Event::Stored(0, 999, 1),
+ Event::Stored(0, 999, 2),
+ Event::Registered(
+ 0,
+ 92,
+ ElectionScore {
+ minimal_stake: 110,
+ sum_stake: 130,
+ sum_stake_squared: 8650
+ }
+ ),
+ Event::Slashed(0, 92, 5),
+ Event::Rewarded(0, 999, 7),
+ Event::Discarded(0, 99)
+ ]
+ );
+
+ assert_eq!(
+ verifier_events(),
+ vec![
+ crate::verifier::Event::Verified(2, 0),
+ crate::verifier::Event::Verified(1, 0),
+ crate::verifier::Event::Verified(0, 0),
+ crate::verifier::Event::VerificationFailed(0, FeasibilityError::InvalidScore),
+ crate::verifier::Event::Verified(2, 2),
+ crate::verifier::Event::Verified(1, 2),
+ crate::verifier::Event::Verified(0, 2),
+ crate::verifier::Event::Queued(
+ ElectionScore {
+ minimal_stake: 55,
+ sum_stake: 130,
+ sum_stake_squared: 8650
+ },
+ None
+ )
+ ]
+ );
+
+ assert_eq!(balances(99), (100, 0));
+ assert_eq!(balances(999), (107, 0));
+ assert_eq!(balances(92), (95, 0));
+
+ // signed pallet should be in 100% clean state.
+ assert_ok!(Submissions::<Runtime>::ensure_killed(0));
+ })
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/types.rs b/substrate/frame/election-provider-multi-block/src/types.rs
new file mode 100644
index 00000000000..9657277a79e
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/types.rs
@@ -0,0 +1,363 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use frame_support::{
+ BoundedVec, CloneNoBound, DebugNoBound, DefaultNoBound, EqNoBound, PartialEqNoBound,
+};
+use sp_core::Get;
+use sp_std::{collections::btree_set::BTreeSet, fmt::Debug, prelude::*};
+
+use crate::unsigned::miner::MinerConfig;
+use codec::{Decode, Encode, MaxEncodedLen};
+use frame_election_provider_support::ElectionProvider;
+pub use frame_election_provider_support::{NposSolution, PageIndex};
+use scale_info::TypeInfo;
+pub use sp_npos_elections::{ElectionResult, ElectionScore};
+use sp_runtime::SaturatedConversion;
+
+/// The solution type used by this crate.
+pub type SolutionOf<T> = <T as MinerConfig>::Solution;
+/// The voter index. Derived from [`SolutionOf`].
+pub type SolutionVoterIndexOf<T> = <SolutionOf<T> as NposSolution>::VoterIndex;
+/// The target index. Derived from [`SolutionOf`].
+pub type SolutionTargetIndexOf<T> = <SolutionOf<T> as NposSolution>::TargetIndex;
+/// The accuracy of the election, when submitted from offchain. Derived from [`SolutionOf`].
+pub type SolutionAccuracyOf<T> = <SolutionOf<T> as NposSolution>::Accuracy;
+/// The fallback election type.
+pub type FallbackErrorOf<T> = <<T as crate::Config>::Fallback as ElectionProvider>::Error;
+
+/// The relative distribution of a voter's stake among the winning targets.
+pub type AssignmentOf<T> =
+ sp_npos_elections::Assignment<<T as MinerConfig>::AccountId, SolutionAccuracyOf<T>>;
+
+/// A paginated raw solution type.
+///
+/// This is the representation of a stored, unverified solution.
+///
+/// After feasibility, it is convered into `Supports`.
+#[derive(
+ TypeInfo,
+ Encode,
+ Decode,
+ DebugNoBound,
+ CloneNoBound,
+ EqNoBound,
+ PartialEqNoBound,
+ MaxEncodedLen,
+ DefaultNoBound,
+)]
+#[codec(mel_bound(T: crate::Config))]
+#[scale_info(skip_type_params(T))]
+pub struct PagedRawSolution<T: MinerConfig> {
+ /// The individual pages.
+ pub solution_pages: BoundedVec<SolutionOf<T>, <T as MinerConfig>::Pages>,
+ /// The final claimed score post feasibility and concatenation of all apges.
+ pub score: ElectionScore,
+ /// The designated round.
+ pub round: u32,
+}
+
+impl<T: MinerConfig> PagedRawSolution<T> {
+ /// Get the total number of voters, assuming that voters in each page are unique.
+ pub fn voter_count(&self) -> usize {
+ self.solution_pages
+ .iter()
+ .map(|page| page.voter_count())
+ .fold(0usize, |acc, x| acc.saturating_add(x))
+ }
+
+ /// Get the total number of winners, assuming that there's only a single page of targets.
+ pub fn winner_count_single_page_target_snapshot(&self) -> usize {
+ self.solution_pages
+ .iter()
+ .map(|page| page.unique_targets())
+ .into_iter()
+ .flatten()
+ .collect::<BTreeSet<_>>()
+ .len()
+ }
+
+ /// Get the total number of edges.
+ pub fn edge_count(&self) -> usize {
+ self.solution_pages
+ .iter()
+ .map(|page| page.edge_count())
+ .fold(0usize, |acc, x| acc.saturating_add(x))
+ }
+}
+
+/// A helper trait to deal with the page index of partial solutions.
+///
+/// This should only be called on the `Vec<Solution>` or similar types. If the solution is *full*,
+/// then it returns a normal iterator that is just mapping the index (usize) to `PageIndex`.
+///
+/// if the solution is partial, it shifts the indices sufficiently so that the most significant page
+/// of the solution matches with the most significant page of the snapshot onchain.
+///
+/// See the tests below for examples.
+pub trait Pagify<T> {
+ /// Pagify a reference.
+ fn pagify(&self, bound: PageIndex) -> Box<dyn Iterator<Item = (PageIndex, &T)> + '_>;
+ /// Consume and pagify
+ fn into_pagify(self, bound: PageIndex) -> Box<dyn Iterator<Item = (PageIndex, T)>>;
+}
+
+impl<T> Pagify<T> for Vec<T> {
+ fn pagify(&self, desired_pages: PageIndex) -> Box<dyn Iterator<Item = (PageIndex, &T)> + '_> {
+ Box::new(
+ self.into_iter()
+ .enumerate()
+ .map(|(p, s)| (p.saturated_into::<PageIndex>(), s))
+ .map(move |(p, s)| {
+ let desired_pages_usize = desired_pages as usize;
+ // TODO: this could be an error.
+ debug_assert!(self.len() <= desired_pages_usize);
+ let padding = desired_pages_usize.saturating_sub(self.len());
+ let new_page = p.saturating_add(padding.saturated_into::<PageIndex>());
+ (new_page, s)
+ }),
+ )
+ }
+
+ fn into_pagify(self, _: PageIndex) -> Box<dyn Iterator<Item = (PageIndex, T)>> {
+ todo!()
+ }
+}
+
+/// Helper trait to pad a partial solution such that the leftover pages are filled with zero.
+///
+/// See the tests below for examples.
+pub trait PadSolutionPages: Sized {
+ /// Pad the solution to the given number of pages.
+ fn pad_solution_pages(self, desired_pages: PageIndex) -> Self;
+}
+
+impl<T: Default + Clone + Debug, Bound: frame_support::traits::Get<u32>> PadSolutionPages
+ for BoundedVec<T, Bound>
+{
+ fn pad_solution_pages(self, desired_pages: PageIndex) -> Self {
+ let desired_pages_usize = (desired_pages).min(Bound::get()) as usize;
+ debug_assert!(self.len() <= desired_pages_usize);
+ if self.len() == desired_pages_usize {
+ return self
+ }
+
+ // we basically need to prepend the list with this many items.
+ let empty_slots = desired_pages_usize.saturating_sub(self.len());
+ let self_as_vec = sp_std::iter::repeat(Default::default())
+ .take(empty_slots)
+ .chain(self.into_iter())
+ .collect::<Vec<_>>();
+ self_as_vec.try_into().expect("sum of both iterators has at most `desired_pages_usize` items; `desired_pages_usize` is `min`-ed by `Bound`; conversion cannot fail; qed")
+ }
+}
+
+// NOTE on naming conventions: type aliases that end with `Of` should always be `Of<T: Config>`.
+
+/// Alias for a voter, parameterized by the miner config.
+pub(crate) type VoterOf<T> = frame_election_provider_support::Voter<
+ <T as MinerConfig>::AccountId,
+ <T as MinerConfig>::MaxVotesPerVoter,
+>;
+
+/// Alias for a page of voters, parameterized by this crate's config.
+pub(crate) type VoterPageOf<T> = BoundedVec<VoterOf<T>, <T as MinerConfig>::VoterSnapshotPerBlock>;
+
+/// Alias for all pages of voters, parameterized by this crate's config.
+pub(crate) type AllVoterPagesOf<T> = BoundedVec<VoterPageOf<T>, <T as MinerConfig>::Pages>;
+
+/// Maximum number of items that [`AllVoterPagesOf`] can contain, when flattened.
+pub(crate) struct MaxFlattenedVoters<T: MinerConfig>(sp_std::marker::PhantomData<T>);
+impl<T: MinerConfig> Get<u32> for MaxFlattenedVoters<T> {
+ fn get() -> u32 {
+ T::VoterSnapshotPerBlock::get().saturating_mul(T::Pages::get())
+ }
+}
+
+/// Same as [`AllVoterPagesOf`], but instead of being a nested bounded vec, the entire voters are
+/// flattened into one outer, unbounded `Vec` type.
+///
+/// This is bounded by [`MaxFlattenedVoters`].
+pub(crate) type AllVoterPagesFlattenedOf<T> = BoundedVec<VoterOf<T>, MaxFlattenedVoters<T>>;
+
+/// Encodes the length of a solution or a snapshot.
+///
+/// This is stored automatically on-chain, and it contains the **size of the entire snapshot**.
+/// This is also used in dispatchables as weight witness data and should **only contain the size of
+/// the presented solution**, not the entire snapshot.
+#[derive(PartialEq, Eq, Clone, Copy, Encode, Decode, Debug, Default, TypeInfo, MaxEncodedLen)]
+pub struct SolutionOrSnapshotSize {
+ /// The length of voters.
+ #[codec(compact)]
+ pub voters: u32,
+ /// The length of targets.
+ #[codec(compact)]
+ pub targets: u32,
+}
+
+// TODO: we are not using this anywhere.
+/// The type of `Computation` that provided this election data.
+#[derive(PartialEq, Eq, Clone, Copy, Encode, Decode, Debug, TypeInfo, MaxEncodedLen)]
+pub enum ElectionCompute {
+ /// Election was computed on-chain.
+ OnChain,
+ /// Election was computed with a signed submission.
+ Signed,
+ /// Election was computed with an unsigned submission.
+ Unsigned,
+ /// Election was computed with emergency status.
+ Emergency,
+}
+
+impl Default for ElectionCompute {
+ fn default() -> Self {
+ ElectionCompute::OnChain
+ }
+}
+
+/// Current phase of the pallet.
+#[derive(PartialEq, Eq, Clone, Copy, Encode, Decode, MaxEncodedLen, Debug, TypeInfo)]
+pub enum Phase<Bn> {
+ /// Nothing is happening, and nothing will happen.
+ Halted,
+ /// Nothing is happening, but it might.
+ Off,
+ /// Signed phase is open.
+ Signed,
+ /// We are validating results.
+ ///
+ /// The inner value is the block number at which this phase started. This helps with
+ /// synchronizing different sub-systems.
+ ///
+ /// This always follows the signed phase, and is a window of time in which we try to validate
+ /// our signed results.
+ SignedValidation(Bn),
+ /// Unsigned phase. First element is whether it is active or not, second the starting block
+ /// number.
+ ///
+ /// We do not yet check whether the unsigned phase is active or passive. The intent is for the
+ /// blockchain to be able to declare: "I believe that there exists an adequate signed
+ /// solution," advising validators not to bother running the unsigned offchain worker.
+ ///
+ /// As validator nodes are free to edit their OCW code, they could simply ignore this advisory
+ /// and always compute their own solution. However, by default, when the unsigned phase is
+ /// passive, the offchain workers will not bother running.
+ Unsigned(Bn),
+ /// Snapshot is being created. No other operation is allowed. This can be one or more blocks.
+ /// The inner value should be read as "`remaining` number of pages are left to be fetched".
+ /// Thus, if inner value is `0` if the snapshot is complete and we are ready to move on.
+ ///
+ /// This value should be interpreted after `on_initialize` of this pallet has already been
+ /// called.
+ Snapshot(PageIndex),
+ /// Exporting has begun, and the given page was the last one received.
+ ///
+ /// Once this is active, no more signed or solutions will be accepted.
+ Export(PageIndex),
+ /// The emergency phase. This is enabled upon a failing call to `T::ElectionProvider::elect`.
+ /// After that, the only way to leave this phase is through a successful
+ /// `T::ElectionProvider::elect`.
+ Emergency,
+}
+
+impl<Bn> Default for Phase<Bn> {
+ fn default() -> Self {
+ Phase::Off
+ }
+}
+
+impl<Bn: PartialEq + Eq> Phase<Bn> {
+ /// Whether the phase is emergency or not.
+ pub fn is_emergency(&self) -> bool {
+ matches!(self, Phase::Emergency)
+ }
+
+ /// Whether the phase is signed or not.
+ pub fn is_signed(&self) -> bool {
+ matches!(self, Phase::Signed)
+ }
+
+ /// Whether the phase is unsigned or not.
+ pub fn is_unsigned(&self) -> bool {
+ matches!(self, Phase::Unsigned(_))
+ }
+
+ /// Whether the phase is unsigned and open or not, with specific start.
+ pub fn is_unsigned_open_at(&self, at: Bn) -> bool {
+ matches!(self, Phase::Unsigned(real) if *real == at)
+ }
+
+ /// Whether the phase is off or not.
+ pub fn is_off(&self) -> bool {
+ matches!(self, Phase::Off)
+ }
+
+ /// Whether the phase is export or not.
+ pub fn is_export(&self) -> bool {
+ matches!(self, Phase::Export(_))
+ }
+
+ /// Whether the phase is halted or not.
+ pub fn is_halted(&self) -> bool {
+ matches!(self, Phase::Halted)
+ }
+
+ /// Whether the phase is signed validation or not.
+ pub fn is_signed_validation(&self) -> bool {
+ matches!(self, Phase::SignedValidation(_))
+ }
+
+ /// Whether the phase is signed validation or not, with specific start.
+ pub fn is_signed_validation_open_at(&self, at: Bn) -> bool {
+ matches!(self, Phase::SignedValidation(real) if *real == at)
+ }
+}
+
+#[cfg(test)]
+mod pagify {
+ use super::{PadSolutionPages, Pagify};
+ use frame_support::{traits::ConstU32, BoundedVec};
+ use sp_core::bounded_vec;
+
+ #[test]
+ fn pagify_works() {
+ // is a noop when you have the same length
+ assert_eq!(
+ vec![10, 11, 12].pagify(3).collect::<Vec<_>>(),
+ vec![(0, &10), (1, &11), (2, &12)]
+ );
+
+ // pads the values otherwise
+ assert_eq!(vec![10, 11].pagify(3).collect::<Vec<_>>(), vec![(1, &10), (2, &11)]);
+ assert_eq!(vec![10].pagify(3).collect::<Vec<_>>(), vec![(2, &10)]);
+ }
+
+ #[test]
+ fn pad_solution_pages_works() {
+ // noop if the solution is complete, as with pagify.
+ let solution: BoundedVec<_, ConstU32<3>> = bounded_vec![1u32, 2, 3];
+ assert_eq!(solution.pad_solution_pages(3).into_inner(), vec![1, 2, 3]);
+
+ // pads the solution with default if partial..
+ let solution: BoundedVec<_, ConstU32<3>> = bounded_vec![2, 3];
+ assert_eq!(solution.pad_solution_pages(3).into_inner(), vec![0, 2, 3]);
+
+ // behaves the same as `pad_solution_pages(3)`.
+ let solution: BoundedVec<_, ConstU32<3>> = bounded_vec![2, 3];
+ assert_eq!(solution.pad_solution_pages(4).into_inner(), vec![0, 2, 3]);
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/unsigned/benchmarking.rs b/substrate/frame/election-provider-multi-block/src/unsigned/benchmarking.rs
new file mode 100644
index 00000000000..76efe9d9492
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/unsigned/benchmarking.rs
@@ -0,0 +1,79 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use crate::{
+ unsigned::{miner::OffchainWorkerMiner, Call, Config, Pallet},
+ verifier::Verifier,
+ CurrentPhase, Phase,
+};
+use frame_benchmarking::v2::*;
+use frame_election_provider_support::ElectionDataProvider;
+use frame_support::{assert_ok, pallet_prelude::*};
+use frame_system::RawOrigin;
+use sp_std::boxed::Box;
+#[benchmarks(where T: crate::Config + crate::signed::Config + crate::verifier::Config)]
+mod benchmarks {
+ use super::*;
+
+ #[benchmark]
+ fn validate_unsigned() -> Result<(), BenchmarkError> {
+ // TODO: for now we are not using this, maybe remove?
+ // roll to unsigned phase open
+ T::DataProvider::set_next_election(crate::Pallet::<T>::reasonable_next_election());
+ crate::Pallet::<T>::roll_until_matches(|| {
+ matches!(CurrentPhase::<T>::get(), Phase::Unsigned(_))
+ });
+ let call: Call<T> = OffchainWorkerMiner::<T>::mine_solution(1, false)
+ .map(|solution| Call::submit_unsigned { paged_solution: Box::new(solution) })
+ .unwrap();
+
+ #[block]
+ {
+ assert_ok!(Pallet::<T>::validate_unsigned(TransactionSource::Local, &call));
+ }
+
+ Ok(())
+ }
+
+ #[benchmark]
+ fn submit_unsigned() -> Result<(), BenchmarkError> {
+ // roll to unsigned phase open
+ T::DataProvider::set_next_election(crate::Pallet::<T>::reasonable_next_election());
+ crate::Pallet::<T>::roll_until_matches(|| {
+ matches!(CurrentPhase::<T>::get(), Phase::Unsigned(_))
+ });
+ // TODO: we need to better ensure that this is actually worst case
+ let solution = OffchainWorkerMiner::<T>::mine_solution(1, false).unwrap();
+
+ // nothing is queued
+ assert!(T::Verifier::queued_score().is_none());
+ #[block]
+ {
+ assert_ok!(Pallet::<T>::submit_unsigned(RawOrigin::None.into(), Box::new(solution)));
+ }
+
+ // something is queued
+ assert!(T::Verifier::queued_score().is_some());
+ Ok(())
+ }
+
+ impl_benchmark_test_suite!(
+ Pallet,
+ crate::mock::ExtBuilder::full().build_unchecked(),
+ crate::mock::Runtime
+ );
+}
diff --git a/substrate/frame/election-provider-multi-block/src/unsigned/miner.rs b/substrate/frame/election-provider-multi-block/src/unsigned/miner.rs
new file mode 100644
index 00000000000..cccfef13983
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/unsigned/miner.rs
@@ -0,0 +1,1972 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use super::{Call, Config, Pallet};
+use crate::{
+ helpers,
+ types::{PadSolutionPages, *},
+ verifier::{self},
+ CommonError,
+};
+use codec::Encode;
+use frame_election_provider_support::{ExtendedBalance, NposSolver, Support, VoteWeight};
+use frame_support::{traits::Get, BoundedVec};
+use frame_system::pallet_prelude::*;
+use scale_info::TypeInfo;
+use sp_npos_elections::EvaluateSupport;
+use sp_runtime::{
+ offchain::storage::{MutateStorageError, StorageValueRef},
+ traits::{SaturatedConversion, Saturating, Zero},
+};
+use sp_std::{collections::btree_map::BTreeMap, prelude::*};
+
+/// The type of the snapshot.
+///
+/// Used to express errors.
+#[derive(Debug, Eq, PartialEq)]
+pub enum SnapshotType {
+ /// Voters at the given page missing.
+ Voters(PageIndex),
+ /// Targets missing.
+ Targets,
+ /// Metadata missing.
+ Metadata,
+ /// Desired targets missing.
+ DesiredTargets,
+}
+
+pub(crate) type MinerSolverErrorOf<T> = <<T as MinerConfig>::Solver as NposSolver>::Error;
+
+/// The errors related to the [`BaseMiner`].
+#[derive(
+ frame_support::DebugNoBound, frame_support::EqNoBound, frame_support::PartialEqNoBound,
+)]
+pub enum MinerError<T: MinerConfig> {
+ /// An internal error in the NPoS elections crate.
+ NposElections(sp_npos_elections::Error),
+ /// An internal error in the generic solver.
+ Solver(MinerSolverErrorOf<T>),
+ /// Snapshot data was unavailable unexpectedly.
+ SnapshotUnAvailable(SnapshotType),
+ /// The base, common errors from the pallet.
+ Common(CommonError),
+ /// The solution generated from the miner is not feasible.
+ Feasibility(verifier::FeasibilityError),
+ /// Some page index has been invalid.
+ InvalidPage,
+ /// Too many winners were removed during trimming.
+ TooManyWinnersRemoved,
+ /// A defensive error has occurred.
+ Defensive(&'static str),
+}
+
+impl<T: MinerConfig> From<sp_npos_elections::Error> for MinerError<T> {
+ fn from(e: sp_npos_elections::Error) -> Self {
+ MinerError::NposElections(e)
+ }
+}
+
+impl<T: MinerConfig> From<verifier::FeasibilityError> for MinerError<T> {
+ fn from(e: verifier::FeasibilityError) -> Self {
+ MinerError::Feasibility(e)
+ }
+}
+
+impl<T: MinerConfig> From<CommonError> for MinerError<T> {
+ fn from(e: CommonError) -> Self {
+ MinerError::Common(e)
+ }
+}
+
+/// The errors related to the `OffchainWorkerMiner`.
+#[derive(
+ frame_support::DebugNoBound, frame_support::EqNoBound, frame_support::PartialEqNoBound,
+)]
+pub(crate) enum OffchainMinerError<T: Config> {
+ /// An error in the base miner.
+ BaseMiner(MinerError<T::MinerConfig>),
+ /// The base, common errors from the pallet.
+ Common(CommonError),
+ /// Something went wrong fetching the lock.
+ Lock(&'static str),
+ /// Submitting a transaction to the pool failed.
+ PoolSubmissionFailed,
+ /// Cannot restore a solution that was not stored.
+ NoStoredSolution,
+ /// Cached solution is not a `submit_unsigned` call.
+ SolutionCallInvalid,
+ /// Failed to store a solution.
+ FailedToStoreSolution,
+}
+
+impl<T: Config> From<MinerError<T::MinerConfig>> for OffchainMinerError<T> {
+ fn from(e: MinerError<T::MinerConfig>) -> Self {
+ OffchainMinerError::BaseMiner(e)
+ }
+}
+
+impl<T: Config> From<CommonError> for OffchainMinerError<T> {
+ fn from(e: CommonError) -> Self {
+ OffchainMinerError::Common(e)
+ }
+}
+
+/// Configurations for the miner.
+///
+/// This is extracted from the main crate's config so that an offchain miner can readily use the
+/// [`BaseMiner`] without needing to deal with the rest of the pallet's configuration.
+pub trait MinerConfig {
+ /// The account id type.
+ type AccountId: Ord + Clone + codec::Codec + core::fmt::Debug;
+ /// The solution that the miner is mining.
+ /// The solution type.
+ type Solution: codec::FullCodec
+ + Default
+ + PartialEq
+ + Eq
+ + Clone
+ + sp_std::fmt::Debug
+ + Ord
+ + NposSolution
+ + TypeInfo
+ + codec::MaxEncodedLen;
+ /// The solver type.
+ type Solver: NposSolver<AccountId = Self::AccountId>;
+ /// The maximum length that the miner should use for a solution, per page.
+ type MaxLength: Get<u32>;
+ /// Maximum number of votes per voter.
+ ///
+ /// Must be the same as configured in the [`crate::Config::DataProvider`].
+ type MaxVotesPerVoter: Get<u32>;
+ /// Maximum number of winners to select per page.
+ ///
+ /// The miner should respect this, it is used for trimming, and bounded data types.
+ ///
+ /// Should equal to the onchain value set in `Verifier::Config`.
+ type MaxWinnersPerPage: Get<u32>;
+ /// Maximum number of backers per winner, per page.
+ ///
+ /// The miner should respect this, it is used for trimming, and bounded data types.
+ ///
+ /// Should equal to the onchain value set in `Verifier::Config`.
+ type MaxBackersPerWinner: Get<u32>;
+ /// Maximum number of backers, per winner, across all pages.
+ ///
+ /// The miner should respect this, it is used for trimming, and bounded data types.
+ ///
+ /// Should equal to the onchain value set in `Verifier::Config`.
+ type MaxBackersPerWinnerFinal: Get<u32>;
+ /// Maximum number of backers, per winner, per page.
+
+ /// Maximum number of pages that we may compute.
+ ///
+ /// Must be the same as configured in the [`crate::Config`].
+ type Pages: Get<u32>;
+ /// Maximum number of voters per snapshot page.
+ ///
+ /// Must be the same as configured in the [`crate::Config`].
+ type VoterSnapshotPerBlock: Get<u32>;
+ /// Maximum number of targets per snapshot page.
+ ///
+ /// Must be the same as configured in the [`crate::Config`].
+ type TargetSnapshotPerBlock: Get<u32>;
+ /// The hash type of the runtime.
+ type Hash: Eq + PartialEq;
+}
+
+/// A base miner that is only capable of mining a new solution and checking it against the state of
+/// this pallet for feasibility, and trimming its length/weight.
+pub struct BaseMiner<T: MinerConfig>(sp_std::marker::PhantomData<T>);
+
+/// Parameterized `BoundedSupports` for the miner.
+pub type SupportsOfMiner<T> = frame_election_provider_support::BoundedSupports<
+ <T as MinerConfig>::AccountId,
+ <T as MinerConfig>::MaxWinnersPerPage,
+ <T as MinerConfig>::MaxBackersPerWinner,
+>;
+
+/// Aggregator for inputs to [`BaseMiner`].
+pub struct MineInput<T: MinerConfig> {
+ /// Number of winners to pick.
+ pub desired_targets: u32,
+ /// All of the targets.
+ pub all_targets: BoundedVec<T::AccountId, T::TargetSnapshotPerBlock>,
+ /// Paginated list of voters.
+ ///
+ /// Note for staking-miners: How this is calculated is rather delicate, and the order of the
+ /// nested vectors matter. See carefully how `OffchainWorkerMiner::mine_solution` is doing
+ /// this.
+ pub voter_pages: AllVoterPagesOf<T>,
+ /// Number of pages to mind.
+ ///
+ /// Note for staking-miner: Always use [`MinerConfig::Pages`] unless explicitly wanted
+ /// otherwise.
+ pub pages: PageIndex,
+ /// Whether to reduce the solution. Almost always``
+ pub do_reduce: bool,
+ /// The current round for which the solution is being calculated.
+ pub round: u32,
+}
+
+impl<T: MinerConfig> BaseMiner<T> {
+ /// Mine a new npos solution, with the given number of pages.
+ ///
+ /// This miner is only capable of mining a solution that either uses all of the pages of the
+ /// snapshot, or the top `pages` thereof.
+ ///
+ /// This always trims the solution to match a few parameters:
+ ///
+ /// [`MinerConfig::MaxWinnersPerPage`], [`MinerConfig::MaxBackersPerWinner`],
+ /// [`MinerConfig::MaxBackersPerWinnerFinal`] and [`MinerConfig::MaxLength`].
+ ///
+ /// The order of pages returned is aligned with the snapshot. For example, the index 0 of the
+ /// returning solution pages corresponds to the page 0 of the snapshot.
+ ///
+ /// The only difference is, if the solution is partial, then [`Pagify`] must be used to properly
+ /// pad the results.
+ pub fn mine_solution(
+ MineInput { desired_targets, all_targets, voter_pages, mut pages, do_reduce, round }: MineInput<
+ T,
+ >,
+ ) -> Result<PagedRawSolution<T>, MinerError<T>> {
+ pages = pages.min(T::Pages::get());
+
+ // we also build this closure early, so we can let `targets` be consumed.
+ let voter_page_fn = helpers::generate_voter_page_fn::<T>(&voter_pages);
+ let target_index_fn = helpers::target_index_fn::<T>(&all_targets);
+
+ // now flatten the voters, ready to be used as if pagination did not existed.
+ let all_voters: AllVoterPagesFlattenedOf<T> = voter_pages
+ .iter()
+ .cloned()
+ .flatten()
+ .collect::<Vec<_>>()
+ .try_into()
+ .expect("Flattening the voters into `AllVoterPagesFlattenedOf` cannot fail; qed");
+
+ let ElectionResult { winners: _, assignments } = T::Solver::solve(
+ desired_targets as usize,
+ all_targets.clone().to_vec(),
+ all_voters.clone().into_inner(),
+ )
+ .map_err(|e| MinerError::Solver(e))?;
+
+ // reduce and trim supports. We don't trim length and weight here, since those are dependent
+ // on the final form of the solution ([`PagedRawSolution`]), thus we do it later.
+ let trimmed_assignments = {
+ // Implementation note: the overall code path is as follows: election_results ->
+ // assignments -> staked assignments -> reduce -> supports -> trim supports -> staked
+ // assignments -> final assignments
+ // This is by no means the most performant, but is the clear and correct.
+ use sp_npos_elections::{
+ assignment_ratio_to_staked_normalized, assignment_staked_to_ratio_normalized,
+ reduce, supports_to_staked_assignment, to_supports, EvaluateSupport,
+ };
+
+ // These closures are of no use in the rest of these code, since they only deal with the
+ // overall list of voters.
+ let cache = helpers::generate_voter_cache::<T, _>(&all_voters);
+ let stake_of = helpers::stake_of_fn::<T, _>(&all_voters, &cache);
+
+ // 1. convert to staked and reduce
+ let (reduced_count, staked) = {
+ let mut staked = assignment_ratio_to_staked_normalized(assignments, &stake_of)
+ .map_err::<MinerError<T>, _>(Into::into)?;
+
+ // first, reduce the solution if requested. This will already remove a lot of
+ // "redundant" and reduce the chance for the need of any further trimming.
+ let count = if do_reduce { reduce(&mut staked) } else { 0 };
+ (count, staked)
+ };
+
+ // 2. trim the supports by backing.
+ let (_pre_score, final_trimmed_assignments, winners_removed, backers_removed) = {
+ // these supports could very well be invalid for SCORE purposes. The reason is that
+ // you might trim out half of an account's stake, but we don't look for this
+ // account's other votes to fix it.
+ let supports_invalid_score = to_supports(&staked);
+
+ let pre_score = (&supports_invalid_score).evaluate();
+ let (bounded_invalid_score, winners_removed, backers_removed) =
+ SupportsOfMiner::<T>::sorted_truncate_from(supports_invalid_score);
+
+ // now recreated the staked assignments
+ let staked = supports_to_staked_assignment(bounded_invalid_score.into());
+ let assignments = assignment_staked_to_ratio_normalized(staked)
+ .map_err::<MinerError<T>, _>(Into::into)?;
+ (pre_score, assignments, winners_removed, backers_removed)
+ };
+
+ miner_log!(
+ debug,
+ "initial score = {:?}, reduced {} edges, trimmed {} winners from supports, trimmed {} backers from support",
+ _pre_score,
+ reduced_count,
+ winners_removed,
+ backers_removed,
+ );
+
+ final_trimmed_assignments
+ };
+
+ // split the assignments into different pages.
+ let mut paged_assignments: BoundedVec<Vec<AssignmentOf<T>>, T::Pages> =
+ BoundedVec::with_bounded_capacity(pages as usize);
+ paged_assignments.bounded_resize(pages as usize, Default::default());
+ for assignment in trimmed_assignments {
+ // NOTE: this `page` index is LOCAL. It does not correspond to the actual page index of
+ // the snapshot map, but rather the index in the `voter_pages`.
+ let page = voter_page_fn(&assignment.who).ok_or(MinerError::InvalidPage)?;
+ let assignment_page =
+ paged_assignments.get_mut(page as usize).ok_or(MinerError::InvalidPage)?;
+ assignment_page.push(assignment);
+ }
+
+ // convert each page to a compact struct
+ let solution_pages: BoundedVec<SolutionOf<T>, T::Pages> = paged_assignments
+ .into_iter()
+ .enumerate()
+ .map(|(page_index, assignment_page)| {
+ // get the page of the snapshot that corresponds to this page of the assignments.
+ let page: PageIndex = page_index.saturated_into();
+ let voter_snapshot_page = voter_pages
+ .get(page as usize)
+ .ok_or(MinerError::SnapshotUnAvailable(SnapshotType::Voters(page)))?;
+
+ let voter_index_fn = {
+ let cache = helpers::generate_voter_cache::<T, _>(&voter_snapshot_page);
+ helpers::voter_index_fn_owned::<T>(cache)
+ };
+ <SolutionOf<T>>::from_assignment(
+ &assignment_page,
+ &voter_index_fn,
+ &target_index_fn,
+ )
+ .map_err::<MinerError<T>, _>(Into::into)
+ })
+ .collect::<Result<Vec<_>, _>>()?
+ .try_into()
+ .expect("`paged_assignments` is bound by `T::Pages`; length cannot change in iter chain; qed");
+
+ // now do the weight and length trim.
+ let mut solution_pages_unbounded = solution_pages.into_inner();
+ let _trim_length_weight =
+ Self::maybe_trim_weight_and_len(&mut solution_pages_unbounded, &voter_pages)?;
+ let solution_pages = solution_pages_unbounded
+ .try_into()
+ .expect("maybe_trim_weight_and_len cannot increase the length of its input; qed.");
+ miner_log!(debug, "trimmed {} voters due to length restriction.", _trim_length_weight);
+
+ // finally, wrap everything up. Assign a fake score here, since we might need to re-compute
+ // it.
+ let mut paged = PagedRawSolution { round, solution_pages, score: Default::default() };
+
+ // OPTIMIZATION: we do feasibility_check inside `compute_score`, and once later
+ // pre_dispatch. I think it is fine, but maybe we can improve it.
+ let score = Self::compute_score(&paged, &voter_pages, &all_targets, desired_targets)
+ .map_err::<MinerError<T>, _>(Into::into)?;
+ paged.score = score;
+
+ miner_log!(
+ info,
+ "mined a solution with {} pages, score {:?}, {} winners, {} voters, {} edges, and {} bytes",
+ pages,
+ score,
+ paged.winner_count_single_page_target_snapshot(),
+ paged.voter_count(),
+ paged.edge_count(),
+ paged.using_encoded(|b| b.len())
+ );
+
+ Ok(paged)
+ }
+
+ /// perform the feasibility check on all pages of a solution, returning `Ok(())` if all good and
+ /// the corresponding error otherwise.
+ pub fn check_feasibility(
+ paged_solution: &PagedRawSolution<T>,
+ paged_voters: &AllVoterPagesOf<T>,
+ snapshot_targets: &BoundedVec<T::AccountId, T::TargetSnapshotPerBlock>,
+ desired_targets: u32,
+ solution_type: &str,
+ ) -> Result<Vec<SupportsOfMiner<T>>, MinerError<T>> {
+ // check every solution page for feasibility.
+ let padded_voters = paged_voters.clone().pad_solution_pages(T::Pages::get());
+ paged_solution
+ .solution_pages
+ .pagify(T::Pages::get())
+ .map(|(page_index, page_solution)| {
+ verifier::feasibility_check_page_inner_with_snapshot::<T>(
+ page_solution.clone(),
+ &padded_voters[page_index as usize],
+ snapshot_targets,
+ desired_targets,
+ )
+ })
+ .collect::<Result<Vec<_>, _>>()
+ .map_err(|err| {
+ miner_log!(
+ warn,
+ "feasibility check failed for {} solution at: {:?}",
+ solution_type,
+ err
+ );
+ MinerError::from(err)
+ })
+ .and_then(|supports| {
+ // TODO: Check `MaxBackersPerWinnerFinal`
+ Ok(supports)
+ })
+ }
+
+ /// Take the given raw paged solution and compute its score. This will replicate what the chain
+ /// would do as closely as possible, and expects all the corresponding snapshot data to be
+ /// available.
+ fn compute_score(
+ paged_solution: &PagedRawSolution<T>,
+ paged_voters: &AllVoterPagesOf<T>,
+ all_targets: &BoundedVec<T::AccountId, T::TargetSnapshotPerBlock>,
+ desired_targets: u32,
+ ) -> Result<ElectionScore, MinerError<T>> {
+ let all_supports = Self::check_feasibility(
+ paged_solution,
+ paged_voters,
+ all_targets,
+ desired_targets,
+ "mined",
+ )?;
+ let mut total_backings: BTreeMap<T::AccountId, ExtendedBalance> = BTreeMap::new();
+ all_supports.into_iter().flat_map(|x| x.0).for_each(|(who, support)| {
+ let backing = total_backings.entry(who).or_default();
+ *backing = backing.saturating_add(support.total);
+ });
+
+ let all_supports = total_backings
+ .into_iter()
+ .map(|(who, total)| (who, Support { total, ..Default::default() }))
+ .collect::<Vec<_>>();
+
+ Ok((&all_supports).evaluate())
+ }
+
+ /// Trim the given supports so that the count of backings in none of them exceeds
+ /// [`crate::verifier::Config::MaxBackersPerWinner`].
+ ///
+ /// Note that this should only be called on the *global, non-paginated* supports. Calling this
+ /// on a single page of supports is essentially pointless and does not guarantee anything in
+ /// particular.
+ ///
+ /// Returns the count of supports trimmed.
+ pub fn trim_supports(supports: &mut sp_npos_elections::Supports<T::AccountId>) -> u32 {
+ let limit = T::MaxBackersPerWinner::get() as usize;
+ let mut count = 0;
+ supports
+ .iter_mut()
+ .filter_map(
+ |(_, support)| if support.voters.len() > limit { Some(support) } else { None },
+ )
+ .for_each(|support| {
+ support.voters.sort_unstable_by(|(_, b1), (_, b2)| b1.cmp(&b2).reverse());
+ support.voters.truncate(limit);
+ support.total = support.voters.iter().fold(0, |acc, (_, x)| acc.saturating_add(*x));
+ count.saturating_inc();
+ });
+ count
+ }
+
+ /// Maybe tim the weight and length of the given multi-page solution.
+ ///
+ /// Returns the number of voters removed.
+ ///
+ /// If either of the bounds are not met, the trimming strategy is as follows:
+ ///
+ /// Start from the least significant page. Assume only this page is going to be trimmed. call
+ /// `page.sort()` on this page. This will make sure in each field (`votes1`, `votes2`, etc.) of
+ /// that page, the voters are sorted by descending stake. Then, we compare the last item of each
+ /// field. This is the process of removing the single least staked voter.
+ ///
+ /// We repeat this until satisfied, for both weight and length. If a full page is removed, but
+ /// the bound is not satisfied, we need to make sure that we sort the next least valuable page,
+ /// and repeat the same process.
+ ///
+ /// NOTE: this is a public function to be used by the `OffchainWorkerMiner` or any similar one,
+ /// based on the submission strategy. The length and weight bounds of a call are dependent on
+ /// the number of pages being submitted, the number of blocks over which we submit, and the type
+ /// of the transaction and its weight (e.g. signed or unsigned).
+ ///
+ /// NOTE: It could be that this function removes too many voters, and the solution becomes
+ /// invalid. This is not yet handled and only a warning is emitted.
+ pub fn maybe_trim_weight_and_len(
+ solution_pages: &mut Vec<SolutionOf<T>>,
+ paged_voters: &AllVoterPagesOf<T>,
+ ) -> Result<u32, MinerError<T>> {
+ debug_assert_eq!(solution_pages.len(), paged_voters.len());
+ let size_limit = T::MaxLength::get();
+
+ let needs_any_trim = |solution_pages: &mut Vec<SolutionOf<T>>| {
+ let size = solution_pages.encoded_size() as u32;
+ let needs_len_trim = size > size_limit;
+ // a reminder that we used to have weight trimming here, but not more!
+ let needs_weight_trim = false;
+ needs_weight_trim || needs_len_trim
+ };
+
+ // Note the solution might be partial. In either case, this is its least significant page.
+ let mut current_trimming_page = 0;
+ let current_trimming_page_stake_of = |current_trimming_page: usize| {
+ Box::new(move |voter_index: &SolutionVoterIndexOf<T>| -> VoteWeight {
+ paged_voters
+ .get(current_trimming_page)
+ .and_then(|page_voters| {
+ page_voters
+ .get((*voter_index).saturated_into::<usize>())
+ .map(|(_, s, _)| *s)
+ })
+ .unwrap_or_default()
+ })
+ };
+
+ let sort_current_trimming_page =
+ |current_trimming_page: usize, solution_pages: &mut Vec<SolutionOf<T>>| {
+ solution_pages.get_mut(current_trimming_page).map(|solution_page| {
+ let stake_of_fn = current_trimming_page_stake_of(current_trimming_page);
+ solution_page.sort(stake_of_fn)
+ });
+ };
+
+ let is_empty = |solution_pages: &Vec<SolutionOf<T>>| {
+ solution_pages.iter().all(|page| page.voter_count().is_zero())
+ };
+
+ if needs_any_trim(solution_pages) {
+ sort_current_trimming_page(current_trimming_page, solution_pages)
+ }
+
+ // Implementation note: we want `solution_pages` and `paged_voters` to remain in sync, so
+ // while one of the pages of `solution_pages` might become "empty" we prefer not removing
+ // it. This has a slight downside that even an empty pages consumes a few dozens of bytes,
+ // which we accept for code simplicity.
+
+ let mut removed = 0;
+ while needs_any_trim(solution_pages) && !is_empty(solution_pages) {
+ if let Some(removed_idx) =
+ solution_pages.get_mut(current_trimming_page).and_then(|page| {
+ let stake_of_fn = current_trimming_page_stake_of(current_trimming_page);
+ page.remove_weakest_sorted(&stake_of_fn)
+ }) {
+ miner_log!(
+ trace,
+ "removed voter at index {:?} of (un-pagified) page {} as the weakest due to weight/length limits.",
+ removed_idx,
+ current_trimming_page
+ );
+ // we removed one person, continue.
+ removed.saturating_inc();
+ } else {
+ // this page cannot support remove anymore. Try and go to the next page.
+ miner_log!(
+ debug,
+ "page {} seems to be fully empty now, moving to the next one",
+ current_trimming_page
+ );
+ let next_page = current_trimming_page.saturating_add(1);
+ if paged_voters.len() > next_page {
+ current_trimming_page = next_page;
+ sort_current_trimming_page(current_trimming_page, solution_pages);
+ } else {
+ miner_log!(
+ warn,
+ "no more pages to trim from at page {}, already trimmed",
+ current_trimming_page
+ );
+ break
+ }
+ }
+ }
+
+ Ok(removed)
+ }
+}
+
+/// A miner that is suited to work inside offchain worker environment.
+///
+/// This is parameterized by [`Config`], rather than [`MinerConfig`].
+pub(crate) struct OffchainWorkerMiner<T: Config>(sp_std::marker::PhantomData<T>);
+
+impl<T: Config> OffchainWorkerMiner<T> {
+ /// Storage key used to store the offchain worker running status.
+ pub(crate) const OFFCHAIN_LOCK: &'static [u8] = b"parity/multi-block-unsigned-election/lock";
+ /// Storage key used to store the last block number at which offchain worker ran.
+ const OFFCHAIN_LAST_BLOCK: &'static [u8] = b"parity/multi-block-unsigned-election";
+ /// Storage key used to cache the solution `call` and its snapshot fingerprint.
+ const OFFCHAIN_CACHED_CALL: &'static [u8] = b"parity/multi-block-unsigned-election/call";
+ /// The number of pages that the offchain worker miner will try and mine.
+ const MINING_PAGES: PageIndex = 1;
+
+ pub(crate) fn fetch_snapshot(
+ pages: PageIndex,
+ ) -> Result<
+ (AllVoterPagesOf<T::MinerConfig>, BoundedVec<T::AccountId, T::TargetSnapshotPerBlock>, u32),
+ OffchainMinerError<T>,
+ > {
+ // read the appropriate snapshot pages.
+ let desired_targets = crate::Snapshot::<T>::desired_targets()
+ .ok_or(MinerError::SnapshotUnAvailable(SnapshotType::DesiredTargets))?;
+ let all_targets = crate::Snapshot::<T>::targets()
+ .ok_or(MinerError::SnapshotUnAvailable(SnapshotType::Targets))?;
+
+ // This is the range of voters that we are interested in. Mind the second `.rev`, it is
+ // super critical.
+ let voter_pages_range = (crate::Pallet::<T>::lsp()..crate::Pallet::<T>::msp() + 1)
+ .rev()
+ .take(pages as usize)
+ .rev();
+
+ sublog!(
+ debug,
+ "unsigned::base-miner",
+ "mining a solution with {} pages, voter snapshot range will be: {:?}",
+ pages,
+ voter_pages_range.clone().collect::<Vec<_>>()
+ );
+
+ // NOTE: if `pages (2) < T::Pages (3)`, at this point this vector will have length 2,
+ // with a layout of `[snapshot(1), snapshot(2)]`, namely the two most significant pages
+ // of the snapshot.
+ let voter_pages: BoundedVec<_, T::Pages> = voter_pages_range
+ .map(|p| {
+ crate::Snapshot::<T>::voters(p)
+ .ok_or(MinerError::SnapshotUnAvailable(SnapshotType::Voters(p)))
+ })
+ .collect::<Result<Vec<_>, _>>()?
+ .try_into()
+ .expect(
+ "`voter_pages_range` has `.take(pages)`; it must have length less than pages; it
+ must convert to `BoundedVec`; qed",
+ );
+
+ Ok((voter_pages, all_targets, desired_targets))
+ }
+
+ pub(crate) fn mine_solution(
+ pages: PageIndex,
+ do_reduce: bool,
+ ) -> Result<PagedRawSolution<T::MinerConfig>, OffchainMinerError<T>> {
+ let (voter_pages, all_targets, desired_targets) = Self::fetch_snapshot(pages)?;
+ let round = crate::Pallet::<T>::round();
+ BaseMiner::<T::MinerConfig>::mine_solution(MineInput {
+ desired_targets,
+ all_targets,
+ voter_pages,
+ pages,
+ do_reduce,
+ round,
+ })
+ .map_err(Into::into)
+ }
+
+ /// Get a checked solution from the base miner, ensure unsigned-specific checks also pass, then
+ /// return an submittable call.
+ fn mine_checked_call() -> Result<Call<T>, OffchainMinerError<T>> {
+ // we always do reduce in the offchain worker miner.
+ let reduce = true;
+
+ // NOTE: we don't run any checks in the base miner, and run all of them via
+ // `Self::full_checks`.
+ let paged_solution = Self::mine_solution(Self::MINING_PAGES, reduce)
+ .map_err::<OffchainMinerError<T>, _>(Into::into)?;
+ // check the call fully, no fingerprinting.
+ let _ = Self::check_solution(&paged_solution, None, true, "mined")?;
+
+ let call: Call<T> =
+ Call::<T>::submit_unsigned { paged_solution: Box::new(paged_solution) }.into();
+
+ Ok(call)
+ }
+
+ /// Mine a new checked solution, cache it, and submit it back to the chain as an unsigned
+ /// transaction.
+ pub fn mine_check_save_submit() -> Result<(), OffchainMinerError<T>> {
+ sublog!(debug, "unsigned::ocw-miner", "miner attempting to compute an unsigned solution.");
+ let call = Self::mine_checked_call()?;
+ Self::save_solution(&call, crate::Snapshot::<T>::fingerprint())?;
+ Self::submit_call(call)
+ }
+
+ /// Check the solution, from the perspective of the offchain-worker miner:
+ ///
+ /// 1. unsigned-specific checks.
+ /// 2. full-checks of the base miner
+ /// 1. optionally feasibility check.
+ /// 2. snapshot-independent checks.
+ /// 1. optionally, snapshot fingerprint.
+ pub fn check_solution(
+ paged_solution: &PagedRawSolution<T::MinerConfig>,
+ maybe_snapshot_fingerprint: Option<T::Hash>,
+ do_feasibility: bool,
+ solution_type: &str,
+ ) -> Result<(), OffchainMinerError<T>> {
+ // NOTE: we prefer cheap checks first, so first run unsigned checks.
+ Pallet::<T>::unsigned_specific_checks(paged_solution)?;
+ Self::base_check_solution(
+ paged_solution,
+ maybe_snapshot_fingerprint,
+ do_feasibility,
+ solution_type,
+ )
+ }
+
+ fn submit_call(call: Call<T>) -> Result<(), OffchainMinerError<T>> {
+ sublog!(
+ debug,
+ "unsigned::ocw-miner",
+ "miner submitting a solution as an unsigned transaction"
+ );
+ let xt = T::create_inherent(call.into());
+ frame_system::offchain::SubmitTransaction::<T, Call<T>>::submit_transaction(xt)
+ .map(|_| {
+ sublog!(
+ debug,
+ "unsigned::ocw-miner",
+ "miner submitted a solution as an unsigned transaction",
+ );
+ })
+ .map_err(|_| OffchainMinerError::PoolSubmissionFailed)
+ }
+
+ /// Check the solution, from the perspective of the base miner:
+ ///
+ /// 1. snapshot-independent checks.
+ /// - with the fingerprint check being an optional step fo that.
+ /// 2. optionally, feasibility check.
+ ///
+ /// In most cases, you should always use this either with `do_feasibility = true` or
+ /// `maybe_snapshot_fingerprint.is_some()`. Doing both could be an overkill. The snapshot
+ /// staying constant (which can be checked via the hash) is a string guarantee that the
+ /// feasibility still holds.
+ ///
+ /// The difference between this and [`Self::check_solution`] is that this does not run unsigned
+ /// specific checks.
+ pub(crate) fn base_check_solution(
+ paged_solution: &PagedRawSolution<T::MinerConfig>,
+ maybe_snapshot_fingerprint: Option<T::Hash>,
+ do_feasibility: bool,
+ solution_type: &str, // TODO: remove
+ ) -> Result<(), OffchainMinerError<T>> {
+ let _ = crate::Pallet::<T>::snapshot_independent_checks(
+ paged_solution,
+ maybe_snapshot_fingerprint,
+ )?;
+
+ if do_feasibility {
+ let (voter_pages, all_targets, desired_targets) =
+ Self::fetch_snapshot(paged_solution.solution_pages.len() as PageIndex)?;
+ let _ = BaseMiner::<T::MinerConfig>::check_feasibility(
+ &paged_solution,
+ &voter_pages,
+ &all_targets,
+ desired_targets,
+ solution_type,
+ )?;
+ }
+
+ Ok(())
+ }
+
+ /// Attempt to restore a solution from cache. Otherwise, compute it fresh. Either way,
+ /// submit if our call's score is greater than that of the cached solution.
+ pub fn restore_or_compute_then_maybe_submit() -> Result<(), OffchainMinerError<T>> {
+ sublog!(
+ debug,
+ "unsigned::ocw-miner",
+ "miner attempting to restore or compute an unsigned solution."
+ );
+
+ let call = Self::restore_solution()
+ .and_then(|(call, snapshot_fingerprint)| {
+ // ensure the cached call is still current before submitting
+ if let Call::submit_unsigned { paged_solution, .. } = &call {
+ // we check the snapshot fingerprint instead of doing a full feasibility.
+ OffchainWorkerMiner::<T>::check_solution(
+ paged_solution,
+ Some(snapshot_fingerprint),
+ false,
+ "restored"
+ ).map_err::<OffchainMinerError<T>, _>(Into::into)?;
+ Ok(call)
+ } else {
+ Err(OffchainMinerError::SolutionCallInvalid)
+ }
+ })
+ .or_else::<OffchainMinerError<T>, _>(|error| {
+ use OffchainMinerError as OE;
+ use MinerError as ME;
+ use CommonError as CE;
+ match error {
+ OE::NoStoredSolution => {
+ // IFF, not present regenerate.
+ let call = Self::mine_checked_call()?;
+ Self::save_solution(&call, crate::Snapshot::<T>::fingerprint())?;
+ Ok(call)
+ },
+ OE::Common(ref e) => {
+ sublog!(
+ error,
+ "unsigned::ocw-miner",
+ "unsigned specific checks failed ({:?}) while restoring solution. This should never happen. clearing cache.",
+ e,
+ );
+ Self::clear_offchain_solution_cache();
+ Err(error)
+ },
+ OE::BaseMiner(ME::Feasibility(_))
+ | OE::BaseMiner(ME::Common(CE::WrongRound))
+ | OE::BaseMiner(ME::Common(CE::WrongFingerprint))
+ => {
+ // note that failing `Feasibility` can only mean that the solution was
+ // computed over a snapshot that has changed due to a fork.
+ sublog!(warn, "unsigned::ocw-miner", "wiping infeasible solution ({:?}).", error);
+ // kill the "bad" solution.
+ Self::clear_offchain_solution_cache();
+
+ // .. then return the error as-is.
+ Err(error)
+ },
+ _ => {
+ sublog!(debug, "unsigned::ocw-miner", "unhandled error in restoring offchain solution {:?}", error);
+ // nothing to do. Return the error as-is.
+ Err(error)
+ },
+ }
+ })?;
+
+ Self::submit_call(call)
+ }
+
+ /// Checks if an execution of the offchain worker is permitted at the given block number, or
+ /// not.
+ ///
+ /// This makes sure that
+ /// 1. we don't run on previous blocks in case of a re-org
+ /// 2. we don't run twice within a window of length `T::OffchainRepeat`.
+ ///
+ /// Returns `Ok(())` if offchain worker limit is respected, `Err(reason)` otherwise. If
+ /// `Ok()` is returned, `now` is written in storage and will be used in further calls as the
+ /// baseline.
+ pub fn ensure_offchain_repeat_frequency(
+ now: BlockNumberFor<T>,
+ ) -> Result<(), OffchainMinerError<T>> {
+ let threshold = T::OffchainRepeat::get();
+ let last_block = StorageValueRef::persistent(&Self::OFFCHAIN_LAST_BLOCK);
+
+ let mutate_stat = last_block.mutate::<_, &'static str, _>(
+ |maybe_head: Result<Option<BlockNumberFor<T>>, _>| {
+ match maybe_head {
+ Ok(Some(head)) if now < head => Err("fork."),
+ Ok(Some(head)) if now >= head && now <= head + threshold =>
+ Err("recently executed."),
+ Ok(Some(head)) if now > head + threshold => {
+ // we can run again now. Write the new head.
+ Ok(now)
+ },
+ _ => {
+ // value doesn't exists. Probably this node just booted up. Write, and
+ // run
+ Ok(now)
+ },
+ }
+ },
+ );
+
+ match mutate_stat {
+ // all good
+ Ok(_) => Ok(()),
+ // failed to write.
+ Err(MutateStorageError::ConcurrentModification(_)) => Err(OffchainMinerError::Lock(
+ "failed to write to offchain db (concurrent modification).",
+ )),
+ // fork etc.
+ Err(MutateStorageError::ValueFunctionFailed(why)) => Err(OffchainMinerError::Lock(why)),
+ }
+ }
+
+ /// Save a given call into OCW storage.
+ fn save_solution(
+ call: &Call<T>,
+ snapshot_fingerprint: T::Hash,
+ ) -> Result<(), OffchainMinerError<T>> {
+ sublog!(debug, "unsigned::ocw-miner", "saving a call to the offchain storage.");
+ let storage = StorageValueRef::persistent(&Self::OFFCHAIN_CACHED_CALL);
+ match storage.mutate::<_, (), _>(|_| Ok((call.clone(), snapshot_fingerprint))) {
+ Ok(_) => Ok(()),
+ Err(MutateStorageError::ConcurrentModification(_)) =>
+ Err(OffchainMinerError::FailedToStoreSolution),
+ Err(MutateStorageError::ValueFunctionFailed(_)) => {
+ // this branch should be unreachable according to the definition of
+ // `StorageValueRef::mutate`: that function should only ever `Err` if the closure we
+ // pass it returns an error. however, for safety in case the definition changes, we
+ // do not optimize the branch away or panic.
+ Err(OffchainMinerError::FailedToStoreSolution)
+ },
+ }
+ }
+
+ /// Get a saved solution from OCW storage if it exists.
+ fn restore_solution() -> Result<(Call<T>, T::Hash), OffchainMinerError<T>> {
+ StorageValueRef::persistent(&Self::OFFCHAIN_CACHED_CALL)
+ .get()
+ .ok()
+ .flatten()
+ .ok_or(OffchainMinerError::NoStoredSolution)
+ }
+
+ /// Clear a saved solution from OCW storage.
+ fn clear_offchain_solution_cache() {
+ sublog!(debug, "unsigned::ocw-miner", "clearing offchain call cache storage.");
+ let mut storage = StorageValueRef::persistent(&Self::OFFCHAIN_CACHED_CALL);
+ storage.clear();
+ }
+
+ #[cfg(test)]
+ fn cached_solution() -> Option<Call<T>> {
+ StorageValueRef::persistent(&Self::OFFCHAIN_CACHED_CALL)
+ .get::<Call<T>>()
+ .unwrap()
+ }
+}
+
+// This will only focus on testing the internals of `maybe_trim_weight_and_len_works`.
+#[cfg(test)]
+mod trim_weight_length {
+ use super::*;
+ use crate::{mock::*, verifier::Verifier};
+ use frame_election_provider_support::TryFromUnboundedPagedSupports;
+ use sp_npos_elections::Support;
+
+ #[test]
+ fn trim_length() {
+ // This is just demonstration to show the normal election result with new votes, without any
+ // trimming.
+ ExtBuilder::unsigned().build_and_execute(|| {
+ let mut current_voters = Voters::get();
+ current_voters.iter_mut().for_each(|(who, stake, ..)| *stake = *who);
+ Voters::set(current_voters);
+
+ roll_to_snapshot_created();
+ ensure_voters(3, 12);
+
+ let solution = mine_full_solution().unwrap();
+
+ assert_eq!(
+ solution.solution_pages.iter().map(|page| page.voter_count()).sum::<usize>(),
+ 8
+ );
+
+ assert_eq!(solution.solution_pages.encoded_size(), 105);
+
+ load_mock_signed_and_start(solution);
+ let supports = roll_to_full_verification();
+
+ // a solution is queued.
+ assert!(VerifierPallet::queued_score().is_some());
+
+ assert_eq!(
+ supports,
+ vec![
+ // if we set any limit less than 105, 30 will be the first to leave.
+ vec![
+ (30, Support { total: 30, voters: vec![(30, 30)] }),
+ (40, Support { total: 40, voters: vec![(40, 40)] })
+ ],
+ vec![
+ (30, Support { total: 11, voters: vec![(7, 7), (5, 2), (6, 2)] }),
+ (40, Support { total: 7, voters: vec![(5, 3), (6, 4)] })
+ ],
+ vec![(40, Support { total: 9, voters: vec![(2, 2), (3, 3), (4, 4)] })]
+ ]
+ .try_from_unbounded_paged()
+ .unwrap()
+ );
+ });
+
+ ExtBuilder::unsigned().miner_max_length(104).build_and_execute(|| {
+ let mut current_voters = Voters::get();
+ current_voters.iter_mut().for_each(|(who, stake, ..)| *stake = *who);
+ Voters::set(current_voters);
+
+ roll_to_snapshot_created();
+ ensure_voters(3, 12);
+
+ let solution = mine_full_solution().unwrap();
+
+ assert_eq!(
+ solution.solution_pages.iter().map(|page| page.voter_count()).sum::<usize>(),
+ 7
+ );
+
+ assert_eq!(solution.solution_pages.encoded_size(), 99);
+
+ load_mock_signed_and_start(solution);
+ let supports = roll_to_full_verification();
+
+ // a solution is queued.
+ assert!(VerifierPallet::queued_score().is_some());
+
+ assert_eq!(
+ supports,
+ vec![
+ // 30 is gone!
+ vec![(40, Support { total: 40, voters: vec![(40, 40)] })],
+ vec![
+ (30, Support { total: 11, voters: vec![(7, 7), (5, 2), (6, 2)] }),
+ (40, Support { total: 7, voters: vec![(5, 3), (6, 4)] })
+ ],
+ vec![(40, Support { total: 9, voters: vec![(2, 2), (3, 3), (4, 4)] })]
+ ]
+ .try_from_unbounded_paged()
+ .unwrap()
+ );
+ });
+ }
+}
+
+#[cfg(test)]
+mod base_miner {
+ use std::vec;
+
+ use super::*;
+ use crate::{mock::*, Snapshot};
+ use frame_election_provider_support::TryFromUnboundedPagedSupports;
+ use sp_npos_elections::Support;
+ use sp_runtime::PerU16;
+
+ #[test]
+ fn pagination_does_not_affect_score() {
+ let score_1 = ExtBuilder::unsigned()
+ .pages(1)
+ .voter_per_page(12)
+ .build_unchecked()
+ .execute_with(|| {
+ roll_to_snapshot_created();
+ mine_full_solution().unwrap().score
+ });
+ let score_2 = ExtBuilder::unsigned()
+ .pages(2)
+ .voter_per_page(6)
+ .build_unchecked()
+ .execute_with(|| {
+ roll_to_snapshot_created();
+ mine_full_solution().unwrap().score
+ });
+ let score_3 = ExtBuilder::unsigned()
+ .pages(3)
+ .voter_per_page(4)
+ .build_unchecked()
+ .execute_with(|| {
+ roll_to_snapshot_created();
+ mine_full_solution().unwrap().score
+ });
+
+ assert_eq!(score_1, score_2);
+ assert_eq!(score_2, score_3);
+ }
+
+ #[test]
+ fn mine_solution_single_page_works() {
+ ExtBuilder::unsigned().pages(1).voter_per_page(8).build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ ensure_voters(1, 8);
+ ensure_targets(1, 4);
+
+ assert_eq!(
+ Snapshot::<Runtime>::voters(0)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![1, 2, 3, 4, 5, 6, 7, 8]
+ );
+
+ let paged = mine_full_solution().unwrap();
+ assert_eq!(paged.solution_pages.len(), 1);
+
+ // this solution must be feasible and submittable.
+ OffchainWorkerMiner::<Runtime>::base_check_solution(&paged, None, true, "mined")
+ .unwrap();
+
+ // now do a realistic full verification
+ load_mock_signed_and_start(paged.clone());
+ let supports = roll_to_full_verification();
+
+ assert_eq!(
+ supports,
+ vec![vec![
+ (10, Support { total: 30, voters: vec![(1, 10), (8, 10), (4, 5), (5, 5)] }),
+ (
+ 40,
+ Support {
+ total: 40,
+ voters: vec![(2, 10), (3, 10), (6, 10), (4, 5), (5, 5)]
+ }
+ )
+ ]]
+ .try_from_unbounded_paged()
+ .unwrap()
+ );
+
+ // NOTE: this is the same as the score of any other test that contains the first 8
+ // voters, we already test for this in `pagination_does_not_affect_score`.
+ assert_eq!(
+ paged.score,
+ ElectionScore { minimal_stake: 30, sum_stake: 70, sum_stake_squared: 2500 }
+ );
+ })
+ }
+
+ #[test]
+ fn mine_solution_double_page_works() {
+ ExtBuilder::unsigned().pages(2).voter_per_page(4).build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ // 2 pages of 8 voters
+ ensure_voters(2, 8);
+ // 1 page of 4 targets
+ ensure_targets(1, 4);
+
+ // voters in pages. note the reverse page index.
+ assert_eq!(
+ Snapshot::<Runtime>::voters(0)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![5, 6, 7, 8]
+ );
+ assert_eq!(
+ Snapshot::<Runtime>::voters(1)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![1, 2, 3, 4]
+ );
+ // targets in pages.
+ assert_eq!(Snapshot::<Runtime>::targets().unwrap(), vec![10, 20, 30, 40]);
+ let paged = mine_full_solution().unwrap();
+
+ assert_eq!(
+ paged.solution_pages,
+ vec![
+ TestNposSolution {
+ // voter 6 (index 1) is backing 40 (index 3).
+ // voter 8 (index 3) is backing 10 (index 0)
+ votes1: vec![(1, 3), (3, 0)],
+ // voter 5 (index 0) is backing 40 (index 10) and 10 (index 0)
+ votes2: vec![(0, [(0, PerU16::from_parts(32768))], 3)],
+ ..Default::default()
+ },
+ TestNposSolution {
+ // voter 1 (index 0) is backing 10 (index 0)
+ // voter 2 (index 1) is backing 40 (index 3)
+ // voter 3 (index 2) is backing 40 (index 3)
+ votes1: vec![(0, 0), (1, 3), (2, 3)],
+ // voter 4 (index 3) is backing 40 (index 10) and 10 (index 0)
+ votes2: vec![(3, [(0, PerU16::from_parts(32768))], 3)],
+ ..Default::default()
+ },
+ ]
+ );
+
+ // this solution must be feasible and submittable.
+ OffchainWorkerMiner::<Runtime>::base_check_solution(&paged, None, false, "mined")
+ .unwrap();
+
+ // it must also be verified in the verifier
+ load_mock_signed_and_start(paged.clone());
+ let supports = roll_to_full_verification();
+
+ assert_eq!(
+ supports,
+ vec![
+ // page0, supports from voters 5, 6, 7, 8
+ vec![
+ (10, Support { total: 15, voters: vec![(8, 10), (5, 5)] }),
+ (40, Support { total: 15, voters: vec![(6, 10), (5, 5)] })
+ ],
+ // page1 supports from voters 1, 2, 3, 4
+ vec![
+ (10, Support { total: 15, voters: vec![(1, 10), (4, 5)] }),
+ (40, Support { total: 25, voters: vec![(2, 10), (3, 10), (4, 5)] })
+ ]
+ ]
+ .try_from_unbounded_paged()
+ .unwrap()
+ );
+
+ assert_eq!(
+ paged.score,
+ ElectionScore { minimal_stake: 30, sum_stake: 70, sum_stake_squared: 2500 }
+ );
+ })
+ }
+
+ #[test]
+ fn mine_solution_triple_page_works() {
+ ExtBuilder::unsigned().pages(3).voter_per_page(4).build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ ensure_voters(3, 12);
+ ensure_targets(1, 4);
+
+ // voters in pages. note the reverse page index.
+ assert_eq!(
+ Snapshot::<Runtime>::voters(2)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![1, 2, 3, 4]
+ );
+ assert_eq!(
+ Snapshot::<Runtime>::voters(1)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![5, 6, 7, 8]
+ );
+ assert_eq!(
+ Snapshot::<Runtime>::voters(0)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![10, 20, 30, 40]
+ );
+
+ let paged = mine_full_solution().unwrap();
+ assert_eq!(
+ paged.solution_pages,
+ vec![
+ TestNposSolution { votes1: vec![(2, 2), (3, 3)], ..Default::default() },
+ TestNposSolution {
+ votes1: vec![(2, 2)],
+ votes2: vec![
+ (0, [(2, PerU16::from_parts(32768))], 3),
+ (1, [(2, PerU16::from_parts(32768))], 3)
+ ],
+ ..Default::default()
+ },
+ TestNposSolution {
+ votes1: vec![(2, 3), (3, 3)],
+ votes2: vec![(1, [(2, PerU16::from_parts(32768))], 3)],
+ ..Default::default()
+ },
+ ]
+ );
+
+ // this solution must be feasible and submittable.
+ OffchainWorkerMiner::<Runtime>::base_check_solution(&paged, None, true, "mined")
+ .unwrap();
+ // now do a realistic full verification
+ load_mock_signed_and_start(paged.clone());
+ let supports = roll_to_full_verification();
+
+ assert_eq!(
+ supports,
+ vec![
+ // page 0: self-votes.
+ vec![
+ (30, Support { total: 30, voters: vec![(30, 30)] }),
+ (40, Support { total: 40, voters: vec![(40, 40)] })
+ ],
+ // page 1: 5, 6, 7, 8
+ vec![
+ (30, Support { total: 20, voters: vec![(7, 10), (5, 5), (6, 5)] }),
+ (40, Support { total: 10, voters: vec![(5, 5), (6, 5)] })
+ ],
+ // page 2: 1, 2, 3, 4
+ vec![
+ (30, Support { total: 5, voters: vec![(2, 5)] }),
+ (40, Support { total: 25, voters: vec![(3, 10), (4, 10), (2, 5)] })
+ ]
+ ]
+ .try_from_unbounded_paged()
+ .unwrap()
+ );
+
+ assert_eq!(
+ paged.score,
+ ElectionScore { minimal_stake: 55, sum_stake: 130, sum_stake_squared: 8650 }
+ );
+ })
+ }
+
+ #[test]
+ fn mine_solution_choses_most_significant_pages() {
+ ExtBuilder::unsigned().pages(2).voter_per_page(4).build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ ensure_voters(2, 8);
+ ensure_targets(1, 4);
+
+ // these folks should be ignored safely.
+ assert_eq!(
+ Snapshot::<Runtime>::voters(0)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![5, 6, 7, 8]
+ );
+ // voters in pages 1, this is the most significant page.
+ assert_eq!(
+ Snapshot::<Runtime>::voters(1)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![1, 2, 3, 4]
+ );
+
+ // now we ask for just 1 page of solution.
+ let paged = mine_solution(1).unwrap();
+
+ assert_eq!(
+ paged.solution_pages,
+ vec![TestNposSolution {
+ // voter 1 (index 0) is backing 10 (index 0)
+ // voter 2 (index 1) is backing 40 (index 3)
+ // voter 3 (index 2) is backing 40 (index 3)
+ votes1: vec![(0, 0), (1, 3), (2, 3)],
+ // voter 4 (index 3) is backing 40 (index 10) and 10 (index 0)
+ votes2: vec![(3, [(0, PerU16::from_parts(32768))], 3)],
+ ..Default::default()
+ }]
+ );
+
+ // this solution must be feasible and submittable.
+ OffchainWorkerMiner::<Runtime>::base_check_solution(&paged, None, true, "mined")
+ .unwrap();
+ // now do a realistic full verification.
+ load_mock_signed_and_start(paged.clone());
+ let supports = roll_to_full_verification();
+
+ assert_eq!(
+ supports,
+ vec![
+ // page0: non existent.
+ vec![],
+ // page1 supports from voters 1, 2, 3, 4
+ vec![
+ (10, Support { total: 15, voters: vec![(1, 10), (4, 5)] }),
+ (40, Support { total: 25, voters: vec![(2, 10), (3, 10), (4, 5)] })
+ ]
+ ]
+ .try_from_unbounded_paged()
+ .unwrap()
+ );
+
+ assert_eq!(
+ paged.score,
+ ElectionScore { minimal_stake: 15, sum_stake: 40, sum_stake_squared: 850 }
+ );
+ })
+ }
+
+ #[test]
+ fn mine_solution_2_out_of_3_pages() {
+ ExtBuilder::unsigned().pages(3).voter_per_page(4).build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ ensure_voters(3, 12);
+ ensure_targets(1, 4);
+
+ assert_eq!(
+ Snapshot::<Runtime>::voters(0)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![10, 20, 30, 40]
+ );
+ assert_eq!(
+ Snapshot::<Runtime>::voters(1)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![5, 6, 7, 8]
+ );
+ assert_eq!(
+ Snapshot::<Runtime>::voters(2)
+ .unwrap()
+ .into_iter()
+ .map(|(x, _, _)| x)
+ .collect::<Vec<_>>(),
+ vec![1, 2, 3, 4]
+ );
+
+ // now we ask for just 1 page of solution.
+ let paged = mine_solution(2).unwrap();
+
+ // this solution must be feasible and submittable.
+ OffchainWorkerMiner::<Runtime>::base_check_solution(&paged, None, true, "mined")
+ .unwrap();
+
+ assert_eq!(
+ paged.solution_pages,
+ vec![
+ // this can be "pagified" to snapshot at index 1, which contains 5, 6, 7, 8
+ // in which:
+ // 6 (index:1) votes for 40 (index:3)
+ // 8 (index:1) votes for 10 (index:0)
+ // 5 votes for both 10 and 40
+ TestNposSolution {
+ votes1: vec![(1, 3), (3, 0)],
+ votes2: vec![(0, [(0, PerU16::from_parts(32768))], 3)],
+ ..Default::default()
+ },
+ // this can be 'pagified" to snapshot at index 2, which contains 1, 2, 3, 4
+ // in which:
+ // 1 (index:0) votes for 10 (index:0)
+ // 2 (index:1) votes for 40 (index:3)
+ // 3 (index:2) votes for 40 (index:3)
+ // 4 votes for both 10 and 40
+ TestNposSolution {
+ votes1: vec![(0, 0), (1, 3), (2, 3)],
+ votes2: vec![(3, [(0, PerU16::from_parts(32768))], 3)],
+ ..Default::default()
+ }
+ ]
+ );
+
+ // this solution must be feasible and submittable.
+ OffchainWorkerMiner::<Runtime>::base_check_solution(&paged, None, true, "mined")
+ .unwrap();
+ // now do a realistic full verification.
+ load_mock_signed_and_start(paged.clone());
+ let supports = roll_to_full_verification();
+
+ assert_eq!(
+ supports,
+ vec![
+ // empty page 0.
+ vec![],
+ // supports from voters 5, 6, 7, 8
+ vec![
+ (10, Support { total: 15, voters: vec![(8, 10), (5, 5)] }),
+ (40, Support { total: 15, voters: vec![(6, 10), (5, 5)] })
+ ],
+ // supports from voters 1, 2, 3, 4
+ vec![
+ (10, Support { total: 15, voters: vec![(1, 10), (4, 5)] }),
+ (40, Support { total: 25, voters: vec![(2, 10), (3, 10), (4, 5)] })
+ ]
+ ]
+ .try_from_unbounded_paged()
+ .unwrap()
+ );
+
+ assert_eq!(
+ paged.score,
+ ElectionScore { minimal_stake: 30, sum_stake: 70, sum_stake_squared: 2500 }
+ );
+ })
+ }
+
+ #[test]
+ fn can_reduce_solution() {
+ ExtBuilder::unsigned().build_and_execute(|| {
+ roll_to_snapshot_created();
+ let full_edges = OffchainWorkerMiner::<Runtime>::mine_solution(Pages::get(), false)
+ .unwrap()
+ .solution_pages
+ .iter()
+ .fold(0, |acc, x| acc + x.edge_count());
+ let reduced_edges = OffchainWorkerMiner::<Runtime>::mine_solution(Pages::get(), true)
+ .unwrap()
+ .solution_pages
+ .iter()
+ .fold(0, |acc, x| acc + x.edge_count());
+
+ assert!(reduced_edges < full_edges, "{} < {} not fulfilled", reduced_edges, full_edges);
+ })
+ }
+
+ #[test]
+ fn trim_backers_per_page_works() {
+ ExtBuilder::unsigned()
+ .max_backers_per_winner(5)
+ .voter_per_page(8)
+ .build_and_execute(|| {
+ // 10 and 40 are the default winners, we add a lot more votes to them.
+ for i in 100..105 {
+ VOTERS.with(|v| v.borrow_mut().push((i, i - 96, vec![10].try_into().unwrap())));
+ }
+ roll_to_snapshot_created();
+
+ ensure_voters(3, 17);
+
+ // now we let the miner mine something for us..
+ let paged = mine_full_solution().unwrap();
+ load_mock_signed_and_start(paged.clone());
+
+ // this must be correct
+ let supports = roll_to_full_verification();
+
+ // 10 has no more than 5 backings, and from the new voters that we added in this
+ // test, the most staked ones stayed (103, 104) and the rest trimmed.
+ assert_eq!(
+ supports,
+ vec![
+ // 1 backing for 10
+ vec![(10, Support { total: 8, voters: vec![(104, 8)] })],
+ // 2 backings for 10
+ vec![
+ (10, Support { total: 17, voters: vec![(10, 10), (103, 7)] }),
+ (40, Support { total: 40, voters: vec![(40, 40)] })
+ ],
+ // 20 backings for 10
+ vec![
+ (10, Support { total: 20, voters: vec![(1, 10), (8, 10)] }),
+ (
+ 40,
+ Support {
+ total: 40,
+ voters: vec![(2, 10), (3, 10), (5, 10), (6, 10)]
+ }
+ )
+ ]
+ ]
+ .try_from_unbounded_paged()
+ .unwrap()
+ );
+ })
+ }
+
+ #[test]
+ #[should_panic]
+ fn trim_backers_final_works() {
+ ExtBuilder::unsigned()
+ .max_backers_per_winner_final(3)
+ .pages(3)
+ .build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ let paged = mine_full_solution().unwrap();
+ load_mock_signed_and_start(paged.clone());
+
+ // this must be correct
+ let _supports = roll_to_full_verification();
+
+ assert_eq!(
+ verifier_events(),
+ vec![
+ verifier::Event::Verified(2, 2),
+ verifier::Event::Verified(1, 2),
+ verifier::Event::Verified(0, 2),
+ verifier::Event::VerificationFailed(
+ 0,
+ verifier::FeasibilityError::FailedToBoundSupport
+ )
+ ]
+ );
+ todo!("miner should trim max backers final, maybe");
+
+ // assert_eq!(
+ // supports,
+ // vec![
+ // // 1 backing for 10
+ // vec![(10, Support { total: 8, voters: vec![(104, 8)] })],
+ // // 2 backings for 10
+ // vec![
+ // (10, Support { total: 17, voters: vec![(10, 10), (103, 7)] }),
+ // (40, Support { total: 40, voters: vec![(40, 40)] })
+ // ],
+ // // 20 backings for 10
+ // vec![
+ // (10, Support { total: 20, voters: vec![(1, 10), (8, 10)] }),
+ // (
+ // 40,
+ // Support {
+ // total: 40,
+ // voters: vec![(2, 10), (3, 10), (4, 10), (6, 10)]
+ // }
+ // )
+ // ]
+ // ]
+ // .try_from_unbounded_paged()
+ // .unwrap()
+ // );
+ });
+ }
+}
+
+#[cfg(test)]
+mod offchain_worker_miner {
+ use crate::{verifier::Verifier, CommonError};
+ use frame_support::traits::Hooks;
+ use sp_runtime::offchain::storage_lock::{BlockAndTime, StorageLock};
+
+ use super::*;
+ use crate::mock::*;
+
+ #[test]
+ fn lock_prevents_frequent_execution() {
+ let (mut ext, _) = ExtBuilder::unsigned().build_offchainify();
+ ext.execute_with_sanity_checks(|| {
+ let offchain_repeat = <Runtime as crate::unsigned::Config>::OffchainRepeat::get();
+
+ // first execution -- okay.
+ assert!(OffchainWorkerMiner::<Runtime>::ensure_offchain_repeat_frequency(25).is_ok());
+
+ // next block: rejected.
+ assert_noop!(
+ OffchainWorkerMiner::<Runtime>::ensure_offchain_repeat_frequency(26),
+ OffchainMinerError::Lock("recently executed.")
+ );
+
+ // allowed after `OFFCHAIN_REPEAT`
+ assert!(OffchainWorkerMiner::<Runtime>::ensure_offchain_repeat_frequency(
+ (26 + offchain_repeat).into()
+ )
+ .is_ok());
+
+ // a fork like situation: re-execute last 3.
+ assert!(OffchainWorkerMiner::<Runtime>::ensure_offchain_repeat_frequency(
+ (26 + offchain_repeat - 3).into()
+ )
+ .is_err());
+ assert!(OffchainWorkerMiner::<Runtime>::ensure_offchain_repeat_frequency(
+ (26 + offchain_repeat - 2).into()
+ )
+ .is_err());
+ assert!(OffchainWorkerMiner::<Runtime>::ensure_offchain_repeat_frequency(
+ (26 + offchain_repeat - 1).into()
+ )
+ .is_err());
+ })
+ }
+
+ #[test]
+ fn lock_released_after_successful_execution() {
+ // first, ensure that a successful execution releases the lock
+ let (mut ext, pool) = ExtBuilder::unsigned().build_offchainify();
+ ext.execute_with_sanity_checks(|| {
+ let guard = StorageValueRef::persistent(&OffchainWorkerMiner::<Runtime>::OFFCHAIN_LOCK);
+ let last_block =
+ StorageValueRef::persistent(&OffchainWorkerMiner::<Runtime>::OFFCHAIN_LAST_BLOCK);
+
+ roll_to(25);
+ assert!(MultiBlock::current_phase().is_unsigned());
+
+ // initially, the lock is not set.
+ assert!(guard.get::<bool>().unwrap().is_none());
+
+ // a successful a-z execution.
+ UnsignedPallet::offchain_worker(25);
+ assert_eq!(pool.read().transactions.len(), 1);
+
+ // afterwards, the lock is not set either..
+ assert!(guard.get::<bool>().unwrap().is_none());
+ assert_eq!(last_block.get::<BlockNumber>().unwrap(), Some(25));
+ });
+ }
+
+ #[test]
+ fn lock_prevents_overlapping_execution() {
+ // ensure that if the guard is in hold, a new execution is not allowed.
+ let (mut ext, pool) = ExtBuilder::unsigned().build_offchainify();
+ ext.execute_with_sanity_checks(|| {
+ roll_to(25);
+ assert!(MultiBlock::current_phase().is_unsigned());
+
+ // artificially set the value, as if another thread is mid-way.
+ let mut lock = StorageLock::<BlockAndTime<System>>::with_block_deadline(
+ OffchainWorkerMiner::<Runtime>::OFFCHAIN_LOCK,
+ UnsignedPhase::get().saturated_into(),
+ );
+ let guard = lock.lock();
+
+ // nothing submitted.
+ UnsignedPallet::offchain_worker(25);
+ assert_eq!(pool.read().transactions.len(), 0);
+ UnsignedPallet::offchain_worker(26);
+ assert_eq!(pool.read().transactions.len(), 0);
+
+ drop(guard);
+
+ // 🎉 !
+ UnsignedPallet::offchain_worker(25);
+ assert_eq!(pool.read().transactions.len(), 1);
+ });
+ }
+
+ #[test]
+ fn initial_ocw_runs_and_saves_new_cache() {
+ let (mut ext, pool) = ExtBuilder::unsigned().build_offchainify();
+ ext.execute_with_sanity_checks(|| {
+ roll_to(25);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+
+ let last_block =
+ StorageValueRef::persistent(&OffchainWorkerMiner::<Runtime>::OFFCHAIN_LAST_BLOCK);
+ let cache =
+ StorageValueRef::persistent(&OffchainWorkerMiner::<Runtime>::OFFCHAIN_CACHED_CALL);
+
+ assert_eq!(last_block.get::<BlockNumber>(), Ok(None));
+ assert_eq!(cache.get::<crate::unsigned::Call<Runtime>>(), Ok(None));
+
+ // creates, caches, submits without expecting previous cache value
+ UnsignedPallet::offchain_worker(25);
+ assert_eq!(pool.read().transactions.len(), 1);
+
+ assert_eq!(last_block.get::<BlockNumber>(), Ok(Some(25)));
+ assert!(matches!(cache.get::<crate::unsigned::Call<Runtime>>(), Ok(Some(_))));
+ })
+ }
+
+ #[test]
+ fn ocw_pool_submission_works() {
+ let (mut ext, pool) = ExtBuilder::unsigned().build_offchainify();
+ ext.execute_with_sanity_checks(|| {
+ roll_to_with_ocw(25, None);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+ // OCW must have submitted now
+
+ let encoded = pool.read().transactions[0].clone();
+ let extrinsic: Extrinsic = codec::Decode::decode(&mut &*encoded).unwrap();
+ let call = extrinsic.function;
+ assert!(matches!(
+ call,
+ crate::mock::RuntimeCall::UnsignedPallet(
+ crate::unsigned::Call::submit_unsigned { .. }
+ )
+ ));
+ })
+ }
+
+ #[test]
+ fn resubmits_after_offchain_repeat() {
+ let (mut ext, pool) = ExtBuilder::unsigned().build_offchainify();
+ ext.execute_with_sanity_checks(|| {
+ let offchain_repeat = <Runtime as crate::unsigned::Config>::OffchainRepeat::get();
+ roll_to(25);
+ assert_eq!(MultiBlock::current_phase(), Phase::Unsigned(25));
+
+ assert!(OffchainWorkerMiner::<Runtime>::cached_solution().is_none());
+ // creates, caches, submits without expecting previous cache value
+ UnsignedPallet::offchain_worker(25);
+ assert_eq!(pool.read().transactions.len(), 1);
+ let tx_cache = pool.read().transactions[0].clone();
+ // assume that the tx has been processed
+ pool.try_write().unwrap().transactions.clear();
+
+ // attempts to resubmit the tx after the threshold has expired.
+ UnsignedPallet::offchain_worker(25 + 1 + offchain_repeat);
+ assert_eq!(pool.read().transactions.len(), 1);
+
+ // resubmitted tx is identical to first submission
+ let tx = &pool.read().transactions[0];
+ assert_eq!(&tx_cache, tx);
+ })
+ }
+
+ #[test]
+ fn regenerates_and_resubmits_after_offchain_repeat_if_no_cache() {
+ let (mut ext, pool) = ExtBuilder::unsigned().build_offchainify();
+ ext.execute_with_sanity_checks(|| {
+ let offchain_repeat = <Runtime as crate::unsigned::Config>::OffchainRepeat::get();
+ roll_to(25);
+
+ assert!(OffchainWorkerMiner::<Runtime>::cached_solution().is_none());
+ // creates, caches, submits without expecting previous cache value.
+ UnsignedPallet::offchain_worker(25);
+ assert_eq!(pool.read().transactions.len(), 1);
+ let tx_cache = pool.read().transactions[0].clone();
+ // assume that the tx has been processed
+ pool.try_write().unwrap().transactions.clear();
+
+ // remove the cached submitted tx.
+ // this ensures that when the resubmit window rolls around, we're ready to regenerate
+ // from scratch if necessary
+ let mut call_cache =
+ StorageValueRef::persistent(&OffchainWorkerMiner::<Runtime>::OFFCHAIN_CACHED_CALL);
+ assert!(matches!(call_cache.get::<crate::unsigned::Call<Runtime>>(), Ok(Some(_))));
+ call_cache.clear();
+
+ // attempts to resubmit the tx after the threshold has expired
+ UnsignedPallet::offchain_worker(25 + 1 + offchain_repeat);
+ assert_eq!(pool.read().transactions.len(), 1);
+
+ // resubmitted tx is identical to first submission
+ let tx = &pool.read().transactions[0];
+ assert_eq!(&tx_cache, tx);
+ })
+ }
+
+ #[test]
+ fn altering_snapshot_invalidates_solution_cache() {
+ // by infeasible, we mean here that if the snapshot fingerprint has changed.
+ let (mut ext, pool) = ExtBuilder::unsigned().build_offchainify();
+ ext.execute_with_sanity_checks(|| {
+ let offchain_repeat = <Runtime as crate::unsigned::Config>::OffchainRepeat::get();
+ roll_to_with_ocw(25, None);
+
+ // something is submitted..
+ assert_eq!(pool.read().transactions.len(), 1);
+ pool.try_write().unwrap().transactions.clear();
+
+ // ..and cached
+ let call_cache =
+ StorageValueRef::persistent(&OffchainWorkerMiner::<Runtime>::OFFCHAIN_CACHED_CALL);
+ assert!(matches!(call_cache.get::<crate::unsigned::Call<Runtime>>(), Ok(Some(_))));
+
+ // now change the snapshot, ofc this is rare in reality. This makes the cached call
+ // infeasible.
+ assert_eq!(crate::Snapshot::<Runtime>::targets().unwrap(), vec![10, 20, 30, 40]);
+ let pre_fingerprint = crate::Snapshot::<Runtime>::fingerprint();
+ crate::Snapshot::<Runtime>::remove_target(0);
+ let post_fingerprint = crate::Snapshot::<Runtime>::fingerprint();
+ assert_eq!(crate::Snapshot::<Runtime>::targets().unwrap(), vec![20, 30, 40]);
+ assert_ne!(pre_fingerprint, post_fingerprint);
+
+ // now run ocw again
+ roll_to_with_ocw(25 + offchain_repeat + 1, None);
+ // nothing is submitted this time..
+ assert_eq!(pool.read().transactions.len(), 0);
+ // .. and the cache is gone.
+ assert_eq!(call_cache.get::<crate::unsigned::Call<Runtime>>(), Ok(None));
+
+ // upon the next run, we re-generate and submit something fresh again.
+ roll_to_with_ocw(25 + offchain_repeat + offchain_repeat + 2, None);
+ assert_eq!(pool.read().transactions.len(), 1);
+ assert!(matches!(call_cache.get::<crate::unsigned::Call<Runtime>>(), Ok(Some(_))));
+ })
+ }
+
+ #[test]
+ fn wont_resubmit_if_weak_score() {
+ // common case, if the score is weak, don't bother with anything, ideally check from the
+ // logs that we don't run feasibility in this call path. Score check must come before.
+ let (mut ext, pool) = ExtBuilder::unsigned().build_offchainify();
+ ext.execute_with_sanity_checks(|| {
+ let offchain_repeat = <Runtime as crate::unsigned::Config>::OffchainRepeat::get();
+ // unfortunately there's no pretty way to run the ocw code such that it generates a
+ // weak, but correct solution. We just write it to cache directly.
+
+ roll_to_with_ocw(25, Some(pool.clone()));
+
+ // something is submitted..
+ assert_eq!(pool.read().transactions.len(), 1);
+
+ // ..and cached
+ let call_cache =
+ StorageValueRef::persistent(&OffchainWorkerMiner::<Runtime>::OFFCHAIN_CACHED_CALL);
+ assert!(matches!(call_cache.get::<crate::unsigned::Call<Runtime>>(), Ok(Some(_))));
+
+ // and replace it with something weak.
+ let weak_solution = raw_paged_from_supports(
+ vec![vec![(40, Support { total: 10, voters: vec![(3, 10)] })]],
+ 0,
+ );
+ let weak_call = crate::unsigned::Call::<T>::submit_unsigned {
+ paged_solution: Box::new(weak_solution),
+ };
+ call_cache.set(&weak_call);
+
+ // run again
+ roll_to_with_ocw(25 + offchain_repeat + 1, Some(pool.clone()));
+ // nothing is submitted this time..
+ assert_eq!(pool.read().transactions.len(), 0);
+ // .. and the cache IS STILL THERE!
+ assert!(matches!(call_cache.get::<crate::unsigned::Call<Runtime>>(), Ok(Some(_))));
+ })
+ }
+
+ #[test]
+ fn ocw_submission_e2e_works() {
+ let (mut ext, pool) = ExtBuilder::unsigned().build_offchainify();
+ ext.execute_with_sanity_checks(|| {
+ assert!(VerifierPallet::queued_score().is_none());
+ roll_to_with_ocw(25 + 1, Some(pool.clone()));
+ assert!(VerifierPallet::queued_score().is_some());
+
+ // call is cached.
+ let call_cache =
+ StorageValueRef::persistent(&OffchainWorkerMiner::<Runtime>::OFFCHAIN_CACHED_CALL);
+ assert!(matches!(call_cache.get::<crate::unsigned::Call<Runtime>>(), Ok(Some(_))));
+
+ // pool is empty
+ assert_eq!(pool.read().transactions.len(), 0);
+ })
+ }
+
+ #[test]
+ fn multi_page_ocw_e2e_submits_and_queued_msp_only() {
+ let (mut ext, pool) = ExtBuilder::unsigned().build_offchainify();
+ ext.execute_with_sanity_checks(|| {
+ assert!(VerifierPallet::queued_score().is_none());
+
+ roll_to_with_ocw(25 + 1, Some(pool.clone()));
+
+ assert_eq!(
+ multi_block_events(),
+ vec![
+ crate::Event::PhaseTransitioned { from: Phase::Off, to: Phase::Snapshot(2) },
+ crate::Event::PhaseTransitioned {
+ from: Phase::Snapshot(0),
+ to: Phase::Unsigned(25)
+ }
+ ]
+ );
+ assert_eq!(
+ verifier_events(),
+ vec![
+ crate::verifier::Event::Verified(2, 2),
+ crate::verifier::Event::Queued(
+ ElectionScore { minimal_stake: 15, sum_stake: 40, sum_stake_squared: 850 },
+ None
+ )
+ ]
+ );
+
+ assert!(VerifierPallet::queued_score().is_some());
+
+ // pool is empty
+ assert_eq!(pool.read().transactions.len(), 0);
+ })
+ }
+
+ #[test]
+ fn will_not_mine_if_not_enough_winners() {
+ // also see `trim_weight_too_much_makes_solution_invalid`.
+ let (mut ext, _) = ExtBuilder::unsigned().desired_targets(77).build_offchainify();
+ ext.execute_with_sanity_checks(|| {
+ roll_to_unsigned_open();
+ ensure_voters(3, 12);
+
+ // beautiful errors, isn't it?
+ assert_eq!(
+ OffchainWorkerMiner::<Runtime>::mine_checked_call().unwrap_err(),
+ OffchainMinerError::Common(CommonError::WrongWinnerCount)
+ );
+ });
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/unsigned/mod.rs b/substrate/frame/election-provider-multi-block/src/unsigned/mod.rs
new file mode 100644
index 00000000000..ca6766efd90
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/unsigned/mod.rs
@@ -0,0 +1,633 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! ## The unsigned phase, and its miner.
+//!
+//! This pallet deals with unsigned submissions. These are backup, single page submissions from
+//! validators.
+//!
+//! This pallet has two miners:
+//!
+//! * [`unsigned::miner::BaseMiner`], which is the basis of how the mining works. It can be used by
+//! a separate crate by providing an implementation of [`unsigned::miner::MinerConfig`]. And, it
+//! is used in:
+//! * `Miner::OffchainWorkerMiner`, which is a specialized miner for the single page mining by
+//! validators in the `offchain_worker` hook.
+//!
+//! ## Future Idea: Multi-Page unsigned submission
+//!
+//! the following is the idea of how to implement multi-page unsigned, which we don't have.
+//!
+//! ## Multi-block unsigned submission
+//!
+//! The process of allowing validators to coordinate to submit a multi-page solution is new to this
+//! pallet, and non-existent in the multi-phase pallet. The process is as follows:
+//!
+//! All validators will run their miners and compute the full paginated solution. They submit all
+//! pages as individual unsigned transactions to their local tx-pool.
+//!
+//! Upon validation, if any page is now present the corresponding transaction is dropped.
+//!
+//! At each block, the first page that may be valid is included as a high priority operational
+//! transaction. This page is validated on the fly to be correct. Since this transaction is sourced
+//! from a validator, we can panic if they submit an invalid transaction.
+//!
+//! Then, once the final page is submitted, some extra checks are done, as explained in
+//! [`crate::verifier`]:
+//!
+//! 1. bounds
+//! 2. total score
+//!
+//! These checks might still fail. If they do, the solution is dropped. At this point, we don't know
+//! which validator may have submitted a slightly-faulty solution.
+//!
+//! In order to prevent this, the validation process always includes a check to ensure all of the
+//! previous pages that have been submitted match what the local validator has computed. If they
+//! match, the validator knows that they are putting skin in a game that is valid.
+//!
+//! If any bad paged are detected, the next validator can bail. This process means:
+//!
+//! * As long as all validators are honest, and run the same miner code, a correct solution is
+//! found.
+//! * As little as one malicious validator can stall the process, but no one is accidentally
+//! slashed, and no panic happens.
+//!
+//! A future improvement should keep track of submitters, and report a slash if it occurs. Or, if
+//! the signed process is bullet-proof, we can be okay with the status quo.
+
+/// Export weights
+pub use crate::weights::measured::pallet_election_provider_multi_block_unsigned::*;
+/// Exports of this pallet
+pub use pallet::*;
+#[cfg(feature = "runtime-benchmarks")]
+mod benchmarking;
+
+/// The miner.
+pub mod miner;
+
+#[frame_support::pallet]
+mod pallet {
+ use super::WeightInfo;
+ use crate::{
+ types::*,
+ unsigned::miner::{self},
+ verifier::Verifier,
+ CommonError,
+ };
+ use frame_support::pallet_prelude::*;
+ use frame_system::{offchain::CreateInherent, pallet_prelude::*};
+ use sp_runtime::traits::SaturatedConversion;
+ use sp_std::prelude::*;
+
+ /// convert a [`crate::CommonError`] to a custom InvalidTransaction with the inner code being
+ /// the index of the variant.
+ fn base_error_to_invalid(error: CommonError) -> InvalidTransaction {
+ let index = error.encode().pop().unwrap_or(0);
+ InvalidTransaction::Custom(index)
+ }
+
+ pub(crate) type UnsignedWeightsOf<T> = <T as Config>::WeightInfo;
+
+ #[pallet::config]
+ #[pallet::disable_frame_system_supertrait_check]
+ pub trait Config: crate::Config + CreateInherent<Call<Self>> {
+ /// The repeat threshold of the offchain worker.
+ ///
+ /// For example, if it is 5, that means that at least 5 blocks will elapse between attempts
+ /// to submit the worker's solution.
+ type OffchainRepeat: Get<BlockNumberFor<Self>>;
+
+ /// The solver used in hte offchain worker miner
+ type OffchainSolver: frame_election_provider_support::NposSolver<
+ AccountId = Self::AccountId,
+ >;
+
+ /// The priority of the unsigned transaction submitted in the unsigned-phase
+ type MinerTxPriority: Get<TransactionPriority>;
+
+ /// Runtime weight information of this pallet.
+ type WeightInfo: WeightInfo;
+ }
+
+ #[pallet::pallet]
+ pub struct Pallet<T>(PhantomData<T>);
+
+ #[pallet::call]
+ impl<T: Config> Pallet<T> {
+ /// Submit an unsigned solution.
+ ///
+ /// This works very much like an inherent, as only the validators are permitted to submit
+ /// anything. By default validators will compute this call in their `offchain_worker` hook
+ /// and try and submit it back.
+ ///
+ /// This is different from signed page submission mainly in that the solution page is
+ /// verified on the fly.
+ #[pallet::weight((UnsignedWeightsOf::<T>::submit_unsigned(), DispatchClass::Operational))]
+ #[pallet::call_index(0)]
+ pub fn submit_unsigned(
+ origin: OriginFor<T>,
+ paged_solution: Box<PagedRawSolution<T::MinerConfig>>,
+ ) -> DispatchResultWithPostInfo {
+ ensure_none(origin)?;
+ // TODO: remove the panic from this function for now.
+ let error_message = "Invalid unsigned submission must produce invalid block and \
+ deprive validator from their authoring reward.";
+
+ // phase, round, claimed score, page-count and hash are checked in pre-dispatch. we
+ // don't check them here anymore.
+ debug_assert!(Self::validate_unsigned_checks(&paged_solution).is_ok());
+
+ let only_page = paged_solution
+ .solution_pages
+ .into_inner()
+ .pop()
+ .expect("length of `solution_pages` is always `1`, can be popped; qed.");
+ let claimed_score = paged_solution.score;
+ // `verify_synchronous` will internall queue and save the solution, we don't need to do
+ // it.
+ let _supports = <T::Verifier as Verifier>::verify_synchronous(
+ only_page,
+ claimed_score,
+ // must be valid against the msp
+ crate::Pallet::<T>::msp(),
+ )
+ .expect(error_message);
+
+ sublog!(
+ info,
+ "unsigned",
+ "queued an unsigned solution with score {:?} and {} winners",
+ claimed_score,
+ _supports.len()
+ );
+
+ Ok(None.into())
+ }
+ }
+
+ #[pallet::validate_unsigned]
+ impl<T: Config> ValidateUnsigned for Pallet<T> {
+ type Call = Call<T>;
+ fn validate_unsigned(source: TransactionSource, call: &Self::Call) -> TransactionValidity {
+ if let Call::submit_unsigned { paged_solution, .. } = call {
+ match source {
+ TransactionSource::Local | TransactionSource::InBlock => { /* allowed */ },
+ _ => return InvalidTransaction::Call.into(),
+ }
+
+ let _ = Self::validate_unsigned_checks(paged_solution.as_ref())
+ .map_err(|err| {
+ sublog!(
+ debug,
+ "unsigned",
+ "unsigned transaction validation failed due to {:?}",
+ err
+ );
+ err
+ })
+ .map_err(base_error_to_invalid)?;
+
+ ValidTransaction::with_tag_prefix("OffchainElection")
+ // The higher the score.minimal_stake, the better a paged_solution is.
+ .priority(
+ T::MinerTxPriority::get()
+ .saturating_add(paged_solution.score.minimal_stake.saturated_into()),
+ )
+ // Used to deduplicate unsigned solutions: each validator should produce one
+ // paged_solution per round at most, and solutions are not propagate.
+ .and_provides(paged_solution.round)
+ // Transaction should stay in the pool for the duration of the unsigned phase.
+ .longevity(T::UnsignedPhase::get().saturated_into::<u64>())
+ // We don't propagate this. This can never be validated at a remote node.
+ .propagate(false)
+ .build()
+ } else {
+ InvalidTransaction::Call.into()
+ }
+ }
+
+ fn pre_dispatch(call: &Self::Call) -> Result<(), TransactionValidityError> {
+ if let Call::submit_unsigned { paged_solution, .. } = call {
+ Self::validate_unsigned_checks(paged_solution.as_ref())
+ .map_err(base_error_to_invalid)
+ .map_err(Into::into)
+ } else {
+ Err(InvalidTransaction::Call.into())
+ }
+ }
+ }
+
+ #[pallet::hooks]
+ impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {
+ fn integrity_test() {
+ assert!(
+ UnsignedWeightsOf::<T>::submit_unsigned().all_lte(T::BlockWeights::get().max_block),
+ "weight of `submit_unsigned` is too high"
+ )
+ }
+
+ #[cfg(feature = "try-runtime")]
+ fn try_state(now: BlockNumberFor<T>) -> Result<(), sp_runtime::TryRuntimeError> {
+ Self::do_try_state(now)
+ }
+
+ fn offchain_worker(now: BlockNumberFor<T>) {
+ use sp_runtime::offchain::storage_lock::{BlockAndTime, StorageLock};
+
+ // Create a lock with the maximum deadline of number of blocks in the unsigned phase.
+ // This should only come useful in an **abrupt** termination of execution, otherwise the
+ // guard will be dropped upon successful execution.
+ let mut lock =
+ StorageLock::<BlockAndTime<frame_system::Pallet<T>>>::with_block_deadline(
+ miner::OffchainWorkerMiner::<T>::OFFCHAIN_LOCK,
+ T::UnsignedPhase::get().saturated_into(),
+ );
+
+ match lock.try_lock() {
+ Ok(_guard) => {
+ Self::do_synchronized_offchain_worker(now);
+ },
+ Err(deadline) => {
+ sublog!(
+ debug,
+ "unsigned",
+ "offchain worker lock not released, deadline is {:?}",
+ deadline
+ );
+ },
+ };
+ }
+ }
+
+ impl<T: Config> Pallet<T> {
+ /// Internal logic of the offchain worker, to be executed only when the offchain lock is
+ /// acquired with success.
+ fn do_synchronized_offchain_worker(now: BlockNumberFor<T>) {
+ use miner::OffchainWorkerMiner;
+
+ let current_phase = crate::Pallet::<T>::current_phase();
+ sublog!(
+ trace,
+ "unsigned",
+ "lock for offchain worker acquired. Phase = {:?}",
+ current_phase
+ );
+ match current_phase {
+ Phase::Unsigned(opened) if opened == now => {
+ // Mine a new solution, cache it, and attempt to submit it
+ let initial_output =
+ OffchainWorkerMiner::<T>::ensure_offchain_repeat_frequency(now)
+ .and_then(|_| OffchainWorkerMiner::<T>::mine_check_save_submit());
+ sublog!(
+ debug,
+ "unsigned",
+ "initial offchain worker output: {:?}",
+ initial_output
+ );
+ },
+ Phase::Unsigned(opened) if opened < now => {
+ // Try and resubmit the cached solution, and recompute ONLY if it is not
+ // feasible.
+ let resubmit_output =
+ OffchainWorkerMiner::<T>::ensure_offchain_repeat_frequency(now).and_then(
+ |_| OffchainWorkerMiner::<T>::restore_or_compute_then_maybe_submit(),
+ );
+ sublog!(
+ debug,
+ "unsigned",
+ "resubmit offchain worker output: {:?}",
+ resubmit_output
+ );
+ },
+ _ => {},
+ }
+ }
+
+ /// The checks that should happen in the `ValidateUnsigned`'s `pre_dispatch` and
+ /// `validate_unsigned` functions.
+ ///
+ /// These check both for snapshot independent checks, and some checks that are specific to
+ /// the unsigned phase.
+ pub(crate) fn validate_unsigned_checks(
+ paged_solution: &PagedRawSolution<T::MinerConfig>,
+ ) -> Result<(), CommonError> {
+ Self::unsigned_specific_checks(paged_solution)
+ .and(crate::Pallet::<T>::snapshot_independent_checks(paged_solution, None))
+ .map_err(Into::into)
+ }
+
+ /// The checks that are specific to the (this) unsigned pallet.
+ ///
+ /// ensure solution has the correct phase, and it has only 1 page.
+ pub fn unsigned_specific_checks(
+ paged_solution: &PagedRawSolution<T::MinerConfig>,
+ ) -> Result<(), CommonError> {
+ ensure!(
+ crate::Pallet::<T>::current_phase().is_unsigned(),
+ CommonError::EarlySubmission
+ );
+ ensure!(paged_solution.solution_pages.len() == 1, CommonError::WrongPageCount);
+
+ Ok(())
+ }
+
+ #[cfg(any(test, feature = "runtime-benchmarks", feature = "try-runtime"))]
+ pub(crate) fn do_try_state(
+ _now: BlockNumberFor<T>,
+ ) -> Result<(), sp_runtime::TryRuntimeError> {
+ Ok(())
+ }
+ }
+}
+
+#[cfg(test)]
+mod validate_unsigned {
+ use frame_election_provider_support::Support;
+ use frame_support::{
+ pallet_prelude::InvalidTransaction,
+ unsigned::{TransactionSource, TransactionValidityError, ValidateUnsigned},
+ };
+
+ use super::Call;
+ use crate::{mock::*, types::*, verifier::Verifier};
+
+ #[test]
+ fn retracts_weak_score_accepts_threshold_better() {
+ ExtBuilder::unsigned()
+ .solution_improvement_threshold(sp_runtime::Perbill::from_percent(10))
+ .build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ let solution = mine_full_solution().unwrap();
+ load_mock_signed_and_start(solution.clone());
+ roll_to_full_verification();
+
+ // Some good solution is queued now.
+ assert_eq!(
+ <VerifierPallet as Verifier>::queued_score(),
+ Some(ElectionScore {
+ minimal_stake: 55,
+ sum_stake: 130,
+ sum_stake_squared: 8650
+ })
+ );
+
+ roll_to_unsigned_open();
+
+ // this is just worse
+ let attempt =
+ fake_solution(ElectionScore { minimal_stake: 20, ..Default::default() });
+ let call = Call::submit_unsigned { paged_solution: Box::new(attempt) };
+ assert_eq!(
+ UnsignedPallet::validate_unsigned(TransactionSource::Local, &call).unwrap_err(),
+ TransactionValidityError::Invalid(InvalidTransaction::Custom(2)),
+ );
+
+ // this is better, but not enough better.
+ let insufficient_improvement = 55 * 105 / 100;
+ let attempt = fake_solution(ElectionScore {
+ minimal_stake: insufficient_improvement,
+ ..Default::default()
+ });
+ let call = Call::submit_unsigned { paged_solution: Box::new(attempt) };
+ assert_eq!(
+ UnsignedPallet::validate_unsigned(TransactionSource::Local, &call).unwrap_err(),
+ TransactionValidityError::Invalid(InvalidTransaction::Custom(2)),
+ );
+
+ // note that we now have to use a solution with 2 winners, just to pass all of the
+ // snapshot independent checks.
+ let mut paged = raw_paged_from_supports(
+ vec![vec![
+ (40, Support { total: 10, voters: vec![(3, 5)] }),
+ (30, Support { total: 10, voters: vec![(3, 5)] }),
+ ]],
+ 0,
+ );
+ let sufficient_improvement = 55 * 115 / 100;
+ paged.score =
+ ElectionScore { minimal_stake: sufficient_improvement, ..Default::default() };
+ let call = Call::submit_unsigned { paged_solution: Box::new(paged) };
+ assert!(UnsignedPallet::validate_unsigned(TransactionSource::Local, &call).is_ok());
+ })
+ }
+
+ #[test]
+ fn retracts_wrong_round() {
+ ExtBuilder::unsigned().build_and_execute(|| {
+ roll_to_unsigned_open();
+
+ let mut attempt =
+ fake_solution(ElectionScore { minimal_stake: 5, ..Default::default() });
+ attempt.round += 1;
+ let call = Call::submit_unsigned { paged_solution: Box::new(attempt) };
+
+ assert_eq!(
+ UnsignedPallet::validate_unsigned(TransactionSource::Local, &call).unwrap_err(),
+ // WrongRound is index 1
+ TransactionValidityError::Invalid(InvalidTransaction::Custom(1)),
+ );
+ })
+ }
+
+ #[test]
+ fn retracts_too_many_pages_unsigned() {
+ ExtBuilder::unsigned().build_and_execute(|| {
+ // NOTE: unsigned solutions should have just 1 page, regardless of the configured
+ // page count.
+ roll_to_unsigned_open();
+ let attempt = mine_full_solution().unwrap();
+ let call = Call::submit_unsigned { paged_solution: Box::new(attempt) };
+
+ assert_eq!(
+ UnsignedPallet::validate_unsigned(TransactionSource::Local, &call).unwrap_err(),
+ // WrongPageCount is index 3
+ TransactionValidityError::Invalid(InvalidTransaction::Custom(3)),
+ );
+
+ let attempt = mine_solution(2).unwrap();
+ let call = Call::submit_unsigned { paged_solution: Box::new(attempt) };
+
+ assert_eq!(
+ UnsignedPallet::validate_unsigned(TransactionSource::Local, &call).unwrap_err(),
+ TransactionValidityError::Invalid(InvalidTransaction::Custom(3)),
+ );
+
+ let attempt = mine_solution(1).unwrap();
+ let call = Call::submit_unsigned { paged_solution: Box::new(attempt) };
+
+ assert!(UnsignedPallet::validate_unsigned(TransactionSource::Local, &call).is_ok(),);
+ })
+ }
+
+ #[test]
+ fn retracts_wrong_winner_count() {
+ ExtBuilder::unsigned().desired_targets(2).build_and_execute(|| {
+ roll_to_unsigned_open();
+
+ let paged = raw_paged_from_supports(
+ vec![vec![(40, Support { total: 10, voters: vec![(3, 10)] })]],
+ 0,
+ );
+
+ let call = Call::submit_unsigned { paged_solution: Box::new(paged) };
+
+ assert_eq!(
+ UnsignedPallet::validate_unsigned(TransactionSource::Local, &call).unwrap_err(),
+ // WrongWinnerCount is index 4
+ TransactionValidityError::Invalid(InvalidTransaction::Custom(4)),
+ );
+ });
+ }
+
+ #[test]
+ fn retracts_wrong_phase() {
+ ExtBuilder::unsigned().signed_phase(5, 0).build_and_execute(|| {
+ let solution = raw_paged_solution_low_score();
+ let call = Call::submit_unsigned { paged_solution: Box::new(solution.clone()) };
+
+ // initial
+ assert_eq!(MultiBlock::current_phase(), Phase::Off);
+ assert!(matches!(
+ <UnsignedPallet as ValidateUnsigned>::validate_unsigned(
+ TransactionSource::Local,
+ &call
+ )
+ .unwrap_err(),
+ // because EarlySubmission is index 0.
+ TransactionValidityError::Invalid(InvalidTransaction::Custom(0))
+ ));
+ assert!(matches!(
+ <UnsignedPallet as ValidateUnsigned>::pre_dispatch(&call).unwrap_err(),
+ TransactionValidityError::Invalid(InvalidTransaction::Custom(0))
+ ));
+
+ // signed
+ roll_to(20);
+ assert_eq!(MultiBlock::current_phase(), Phase::Signed);
+ assert!(matches!(
+ <UnsignedPallet as ValidateUnsigned>::validate_unsigned(
+ TransactionSource::Local,
+ &call
+ )
+ .unwrap_err(),
+ TransactionValidityError::Invalid(InvalidTransaction::Custom(0))
+ ));
+ assert!(matches!(
+ <UnsignedPallet as ValidateUnsigned>::pre_dispatch(&call).unwrap_err(),
+ TransactionValidityError::Invalid(InvalidTransaction::Custom(0))
+ ));
+
+ // unsigned
+ roll_to(25);
+ assert!(MultiBlock::current_phase().is_unsigned());
+
+ assert_ok!(<UnsignedPallet as ValidateUnsigned>::validate_unsigned(
+ TransactionSource::Local,
+ &call
+ ));
+ assert_ok!(<UnsignedPallet as ValidateUnsigned>::pre_dispatch(&call));
+ })
+ }
+
+ #[test]
+ fn priority_is_set() {
+ ExtBuilder::unsigned()
+ .miner_tx_priority(20)
+ .desired_targets(0)
+ .build_and_execute(|| {
+ roll_to(25);
+ assert!(MultiBlock::current_phase().is_unsigned());
+
+ let solution =
+ fake_solution(ElectionScore { minimal_stake: 5, ..Default::default() });
+ let call = Call::submit_unsigned { paged_solution: Box::new(solution.clone()) };
+
+ assert_eq!(
+ <UnsignedPallet as ValidateUnsigned>::validate_unsigned(
+ TransactionSource::Local,
+ &call
+ )
+ .unwrap()
+ .priority,
+ 25
+ );
+ })
+ }
+}
+
+#[cfg(test)]
+mod call {
+ use crate::{mock::*, verifier::Verifier, Snapshot};
+
+ #[test]
+ fn unsigned_submission_e2e() {
+ let (mut ext, pool) = ExtBuilder::unsigned().build_offchainify();
+ ext.execute_with_sanity_checks(|| {
+ roll_to_snapshot_created();
+
+ // snapshot is created..
+ assert_full_snapshot();
+ // ..txpool is empty..
+ assert_eq!(pool.read().transactions.len(), 0);
+ // ..but nothing queued.
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), None);
+
+ // now the OCW should submit something.
+ roll_next_with_ocw(Some(pool.clone()));
+ assert_eq!(pool.read().transactions.len(), 1);
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), None);
+
+ // and now it should be applied.
+ roll_next_with_ocw(Some(pool.clone()));
+ assert_eq!(pool.read().transactions.len(), 0);
+ assert!(matches!(<VerifierPallet as Verifier>::queued_score(), Some(_)));
+ })
+ }
+
+ #[test]
+ #[should_panic(
+ expected = "Invalid unsigned submission must produce invalid block and deprive validator from their authoring reward."
+ )]
+ fn unfeasible_solution_panics() {
+ let (mut ext, pool) = ExtBuilder::unsigned().build_offchainify();
+ ext.execute_with_sanity_checks(|| {
+ roll_to_snapshot_created();
+
+ // snapshot is created..
+ assert_full_snapshot();
+ // ..txpool is empty..
+ assert_eq!(pool.read().transactions.len(), 0);
+ // ..but nothing queued.
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), None);
+
+ // now the OCW should submit something.
+ roll_next_with_ocw(Some(pool.clone()));
+ assert_eq!(pool.read().transactions.len(), 1);
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), None);
+
+ // now we change the snapshot -- this should ensure that the solution becomes invalid.
+ // Note that we don't change the known fingerprint of the solution.
+ Snapshot::<Runtime>::remove_target(2);
+
+ // and now it should be applied.
+ roll_next_with_ocw(Some(pool.clone()));
+ assert_eq!(pool.read().transactions.len(), 0);
+ assert!(matches!(<VerifierPallet as Verifier>::queued_score(), Some(_)));
+ })
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/verifier/benchmarking.rs b/substrate/frame/election-provider-multi-block/src/verifier/benchmarking.rs
new file mode 100644
index 00000000000..4884d24d151
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/verifier/benchmarking.rs
@@ -0,0 +1,234 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use crate::{
+ verifier::{Config, Event, FeasibilityError, Pallet, Status, StatusStorage},
+ CurrentPhase, Phase,
+};
+use frame_benchmarking::v2::*;
+use frame_election_provider_support::{ElectionDataProvider, NposSolution};
+use frame_support::pallet_prelude::*;
+use sp_std::prelude::*;
+
+#[benchmarks(where T: crate::Config + crate::signed::Config + crate::unsigned::Config)]
+mod benchmarks {
+ use super::*;
+
+ // TODO: this is the epitome of bad DevEx because of generics.. create a nice one that works in
+ // frame_system.
+ fn events_for<T: Config>() -> Vec<Event<T>> {
+ frame_system::Pallet::<T>::events()
+ .into_iter()
+ .map(|e| e.event) // convert to inner event
+ .filter_map(|e| {
+ let e = <T as Config>::RuntimeEvent::from_ref(&e);
+ if let Ok(ev) =
+ <<T as Config>::RuntimeEvent as TryInto<Event<T>>>::try_into((*e).clone())
+ {
+ Some(ev)
+ } else {
+ None
+ }
+ })
+ .collect()
+ }
+
+ #[benchmark]
+ fn on_initialize_valid_non_terminal() -> Result<(), BenchmarkError> {
+ // roll to signed validation, with a solution stored in the signed pallet
+ T::DataProvider::set_next_election(crate::Pallet::<T>::reasonable_next_election());
+
+ crate::Pallet::<T>::roll_to_signed_and_submit_full_solution();
+ // roll to verification
+ crate::Pallet::<T>::roll_until_matches(|| {
+ matches!(CurrentPhase::<T>::get(), Phase::SignedValidation(_))
+ });
+
+ // start signal must have been sent by now
+ assert_eq!(StatusStorage::<T>::get(), Status::Ongoing(crate::Pallet::<T>::msp()));
+
+ #[block]
+ {
+ crate::Pallet::<T>::roll_next(true, false);
+ }
+ assert_eq!(StatusStorage::<T>::get(), Status::Ongoing(crate::Pallet::<T>::msp() - 1));
+
+ Ok(())
+ }
+
+ #[benchmark]
+ fn on_initialize_valid_terminal() -> Result<(), BenchmarkError> {
+ // roll to signed validation, with a solution stored in the signed pallet
+ T::DataProvider::set_next_election(crate::Pallet::<T>::reasonable_next_election());
+ assert!(
+ T::SignedValidationPhase::get() >= T::Pages::get().into(),
+ "Signed validation phase must be larger than the number of pages"
+ );
+
+ crate::Pallet::<T>::roll_to_signed_and_submit_full_solution();
+ // roll to before the last page of verification
+ crate::Pallet::<T>::roll_until_matches(|| {
+ matches!(CurrentPhase::<T>::get(), Phase::SignedValidation(_))
+ });
+ // start signal must have been sent by now
+ assert_eq!(StatusStorage::<T>::get(), Status::Ongoing(crate::Pallet::<T>::msp()));
+ for _ in 0..(T::Pages::get() - 1) {
+ crate::Pallet::<T>::roll_next(true, false);
+ }
+
+ // we must have verified all pages by now, minus the last one.
+ assert!(matches!(
+ &events_for::<T>()[..],
+ [Event::Verified(_, _), .., Event::Verified(1, _)]
+ ));
+
+ // verify the last page.
+ #[block]
+ {
+ crate::Pallet::<T>::roll_next(true, false);
+ }
+
+ // we are done
+ assert_eq!(StatusStorage::<T>::get(), Status::Nothing);
+ // last event is success
+ assert!(matches!(
+ &events_for::<T>()[..],
+ [Event::Verified(_, _), .., Event::Verified(0, _), Event::Queued(_, None)]
+ ));
+
+ Ok(())
+ }
+
+ #[benchmark]
+ fn on_initialize_invalid_terminal() -> Result<(), BenchmarkError> {
+ // this is the verification of the current page + removing all of the previously valid
+ // pages. The worst case is therefore when the last page is invalid, for example the final
+ // score.
+ assert!(T::Pages::get() >= 2, "benchmark only works if we have more than 2 pages");
+
+ // roll to signed validation, with a solution stored in the signed pallet
+ T::DataProvider::set_next_election(crate::Pallet::<T>::reasonable_next_election());
+
+ // but this solution is corrupt
+ let mut paged_solution = crate::Pallet::<T>::roll_to_signed_and_mine_full_solution();
+ paged_solution.score.minimal_stake -= 1;
+ crate::Pallet::<T>::submit_full_solution(paged_solution);
+
+ // roll to verification
+ crate::Pallet::<T>::roll_until_matches(|| {
+ matches!(CurrentPhase::<T>::get(), Phase::SignedValidation(_))
+ });
+
+ assert_eq!(StatusStorage::<T>::get(), Status::Ongoing(crate::Pallet::<T>::msp()));
+ // verify all pages, except for the last one.
+ for i in 0..T::Pages::get() - 1 {
+ crate::Pallet::<T>::roll_next(true, false);
+ assert_eq!(
+ StatusStorage::<T>::get(),
+ Status::Ongoing(crate::Pallet::<T>::msp() - 1 - i)
+ );
+ }
+
+ // next page to be verified is the last one
+ assert_eq!(StatusStorage::<T>::get(), Status::Ongoing(crate::Pallet::<T>::lsp()));
+ assert!(matches!(
+ &events_for::<T>()[..],
+ [Event::Verified(_, _), .., Event::Verified(1, _)]
+ ));
+
+ #[block]
+ {
+ crate::Pallet::<T>::roll_next(true, false);
+ }
+
+ // we are now reset.
+ assert_eq!(StatusStorage::<T>::get(), Status::Nothing);
+ assert!(matches!(
+ &events_for::<T>()[..],
+ [
+ ..,
+ Event::Verified(0, _),
+ Event::VerificationFailed(0, FeasibilityError::InvalidScore)
+ ]
+ ));
+
+ Ok(())
+ }
+
+ #[benchmark]
+ fn on_initialize_invalid_non_terminal(
+ // number of valid pages that have been verified, before we verify the non-terminal invalid
+ // page.
+ v: Linear<0, { T::Pages::get() - 1 }>,
+ ) -> Result<(), BenchmarkError> {
+ assert!(T::Pages::get() >= 2, "benchmark only works if we have more than 2 pages");
+
+ T::DataProvider::set_next_election(crate::Pallet::<T>::reasonable_next_election());
+
+ // roll to signed validation, with a solution stored in the signed pallet, but this solution
+ // is corrupt in its msp.
+ let mut paged_solution = crate::Pallet::<T>::roll_to_signed_and_mine_full_solution();
+ let page_to_corrupt = crate::Pallet::<T>::msp() - v;
+ crate::log!(
+ info,
+ "pages of solution: {:?}, to corrupt {}, v {}",
+ paged_solution.solution_pages.len(),
+ page_to_corrupt,
+ v
+ );
+ paged_solution.solution_pages[page_to_corrupt as usize].corrupt();
+ crate::Pallet::<T>::submit_full_solution(paged_solution);
+
+ // roll to verification
+ crate::Pallet::<T>::roll_until_matches(|| {
+ matches!(CurrentPhase::<T>::get(), Phase::SignedValidation(_))
+ });
+
+ // we should be ready to go
+ assert_eq!(StatusStorage::<T>::get(), Status::Ongoing(crate::Pallet::<T>::msp()));
+
+ // validate the the parameterized number of valid pages.
+ for _ in 0..v {
+ crate::Pallet::<T>::roll_next(true, false);
+ }
+
+ // we are still ready to continue
+ assert_eq!(StatusStorage::<T>::get(), Status::Ongoing(crate::Pallet::<T>::msp() - v));
+
+ // verify one page, which will be invalid.
+ #[block]
+ {
+ crate::Pallet::<T>::roll_next(true, false);
+ }
+
+ // we are now reset, because this page was invalid.
+ assert_eq!(StatusStorage::<T>::get(), Status::Nothing);
+
+ assert!(matches!(
+ &events_for::<T>()[..],
+ [.., Event::VerificationFailed(_, FeasibilityError::NposElection(_))]
+ ));
+
+ Ok(())
+ }
+
+ impl_benchmark_test_suite!(
+ Pallet,
+ crate::mock::ExtBuilder::full().build_unchecked(),
+ crate::mock::Runtime
+ );
+}
diff --git a/substrate/frame/election-provider-multi-block/src/verifier/impls.rs b/substrate/frame/election-provider-multi-block/src/verifier/impls.rs
new file mode 100644
index 00000000000..0f5f0fb911b
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/verifier/impls.rs
@@ -0,0 +1,955 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use super::*;
+use crate::{
+ helpers,
+ types::VoterOf,
+ unsigned::miner::{MinerConfig, SupportsOfMiner},
+ verifier::Verifier,
+ SolutionOf,
+};
+use codec::{Decode, Encode, MaxEncodedLen};
+use frame_election_provider_support::{
+ ExtendedBalance, NposSolution, PageIndex, TryFromOtherBounds,
+};
+use frame_support::{
+ ensure,
+ pallet_prelude::{ValueQuery, *},
+ traits::{defensive_prelude::*, Defensive, Get},
+};
+use frame_system::pallet_prelude::*;
+use pallet::*;
+use sp_npos_elections::{evaluate_support, ElectionScore, EvaluateSupport};
+use sp_runtime::Perbill;
+use sp_std::{collections::btree_map::BTreeMap, prelude::*};
+
+pub(crate) type SupportsOfVerifier<V> = frame_election_provider_support::BoundedSupports<
+ <V as Verifier>::AccountId,
+ <V as Verifier>::MaxWinnersPerPage,
+ <V as Verifier>::MaxBackersPerWinner,
+>;
+
+pub(crate) type VerifierWeightsOf<T> = <T as Config>::WeightInfo;
+
+/// The status of this pallet.
+#[derive(
+ Encode, Decode, scale_info::TypeInfo, Clone, Copy, MaxEncodedLen, Debug, PartialEq, Eq,
+)]
+pub enum Status {
+ /// A verification is ongoing, and the next page that will be verified is indicated with the
+ /// inner value.
+ Ongoing(PageIndex),
+ /// Nothing is happening.
+ Nothing,
+}
+
+impl Default for Status {
+ fn default() -> Self {
+ Self::Nothing
+ }
+}
+
+/// Enum to point to the valid variant of the [`QueuedSolution`].
+#[derive(Encode, Decode, scale_info::TypeInfo, Clone, Copy, MaxEncodedLen)]
+enum ValidSolution {
+ X,
+ Y,
+}
+
+impl Default for ValidSolution {
+ fn default() -> Self {
+ ValidSolution::Y
+ }
+}
+
+impl ValidSolution {
+ fn other(&self) -> Self {
+ match *self {
+ ValidSolution::X => ValidSolution::Y,
+ ValidSolution::Y => ValidSolution::X,
+ }
+ }
+}
+
+/// A simple newtype that represents the partial backing of a winner. It only stores the total
+/// backing, and the sum of backings, as opposed to a [`sp_npos_elections::Support`] that also
+/// stores all of the backers' individual contribution.
+///
+/// This is mainly here to allow us to implement `Backings` for it.
+#[derive(Default, Encode, Decode, MaxEncodedLen, scale_info::TypeInfo)]
+pub struct PartialBackings {
+ /// The total backing of this particular winner.
+ pub total: ExtendedBalance,
+ /// The number of backers.
+ pub backers: u32,
+}
+
+impl sp_npos_elections::Backings for PartialBackings {
+ fn total(&self) -> ExtendedBalance {
+ self.total
+ }
+}
+
+#[frame_support::pallet]
+pub(crate) mod pallet {
+ use super::*;
+ #[pallet::config]
+ #[pallet::disable_frame_system_supertrait_check]
+ pub trait Config: crate::Config {
+ /// The overarching event type.
+ type RuntimeEvent: From<Event<Self>>
+ + IsType<<Self as frame_system::Config>::RuntimeEvent>
+ + TryInto<Event<Self>>
+ + Clone;
+
+ /// The minimum amount of improvement to the solution score that defines a solution as
+ /// "better".
+ #[pallet::constant]
+ type SolutionImprovementThreshold: Get<Perbill>;
+
+ /// Maximum number of backers, per winner, among all pages of an election.
+ ///
+ /// This can only be checked at the very final step of verification.
+ type MaxBackersPerWinnerFinal: Get<u32>;
+
+ /// Maximum number of backers, per winner, per page.
+ type MaxBackersPerWinner: Get<u32>;
+
+ /// Maximum number of supports (aka. winners/validators/targets) that can be represented in
+ /// a page of results.
+ type MaxWinnersPerPage: Get<u32>;
+
+ /// Something that can provide the solution data to the verifier.
+ ///
+ /// In reality, this will be fulfilled by the signed phase.
+ type SolutionDataProvider: crate::verifier::SolutionDataProvider<
+ Solution = SolutionOf<Self::MinerConfig>,
+ >;
+
+ /// The weight information of this pallet.
+ type WeightInfo: super::WeightInfo;
+ }
+
+ #[pallet::event]
+ #[pallet::generate_deposit(pub(super) fn deposit_event)]
+ pub enum Event<T> {
+ /// The verification data was unavailable and it could not continue.
+ VerificationDataUnavailable,
+ /// A verification failed at the given page.
+ ///
+ /// NOTE: if the index is 0, then this could mean either the feasibility of the last page
+ /// was wrong, or the final checks of `finalize_verification` failed.
+ VerificationFailed(PageIndex, FeasibilityError),
+ /// The given page of a solution has been verified, with the given number of winners being
+ /// found in it.
+ Verified(PageIndex, u32),
+ /// A solution with the given score has replaced our current best solution.
+ Queued(ElectionScore, Option<ElectionScore>),
+ }
+
+ // TODO this has to be entirely re-done to take into account that for lazy deletions. We store
+ // the queued solutions per round and account id. if a solution is invalid, we just mark it as
+ // garbage and delete it later.
+ // we keep a pointer to (round, who) which stores the current best solution.
+
+ /// A wrapper interface for the storage items related to the queued solution.
+ ///
+ /// It wraps the following:
+ ///
+ /// - `QueuedSolutionX`
+ /// - `QueuedSolutionY`
+ /// - `QueuedValidVariant`
+ /// - `QueuedSolutionScore`
+ /// - `QueuedSolutionBackings`
+ ///
+ /// As the name suggests, `QueuedValidVariant` points to the correct variant between
+ /// `QueuedSolutionX` and `QueuedSolutionY`. In the context of this pallet, by VALID and
+ /// INVALID variant we mean either of these two storage items, based on the value of
+ /// `QueuedValidVariant`.
+ ///
+ /// ### Invariants
+ ///
+ /// The following conditions must be met at all times for this group of storage items to be
+ /// sane.
+ ///
+ /// - `QueuedSolutionScore` must always be correct. In other words, it should correctly be the
+ /// score of `QueuedValidVariant`.
+ /// - `QueuedSolutionScore` must always be [`Config::SolutionImprovementThreshold`] better than
+ /// `MinimumScore`.
+ /// - The number of existing keys in `QueuedSolutionBackings` must always match that of the
+ /// INVALID variant.
+ ///
+ /// Moreover, the following conditions must be met when this pallet is in [`Status::Nothing`],
+ /// meaning that no ongoing asynchronous verification is ongoing.
+ ///
+ /// - No keys should exist in the INVALID variant.
+ /// - This implies that no data should exist in `QueuedSolutionBackings`.
+ ///
+ /// > Note that some keys *might* exist in the queued variant, but since partial solutions
+ /// > (having less than `T::Pages` pages) are in principle correct, we cannot assert anything on
+ /// > the number of keys in the VALID variant. In fact, an empty solution with score of [0, 0,
+ /// > 0] can also be correct.
+ ///
+ /// No additional conditions must be met when the pallet is in [`Status::Ongoing`]. The number
+ /// of pages in
+ pub struct QueuedSolution<T: Config>(sp_std::marker::PhantomData<T>);
+ impl<T: Config> QueuedSolution<T> {
+ /// Private helper for mutating the storage group.
+ fn mutate_checked<R>(mutate: impl FnOnce() -> R) -> R {
+ let r = mutate();
+ #[cfg(debug_assertions)]
+ assert!(Self::sanity_check().is_ok());
+ r
+ }
+
+ /// Finalize a correct solution.
+ ///
+ /// Should be called at the end of a verification process, once we are sure that a certain
+ /// solution is 100% correct.
+ ///
+ /// It stores its score, flips the pointer to it being the current best one, and clears all
+ /// the backings and the invalid variant. (note: in principle, we can skip clearing the
+ /// backings here)
+ pub(crate) fn finalize_correct(score: ElectionScore) {
+ sublog!(
+ info,
+ "verifier",
+ "finalizing verification a correct solution, replacing old score {:?} with {:?}",
+ QueuedSolutionScore::<T>::get(),
+ score
+ );
+
+ Self::mutate_checked(|| {
+ QueuedValidVariant::<T>::mutate(|v| *v = v.other());
+ QueuedSolutionScore::<T>::put(score);
+
+ // Clear what was previously the valid variant. Also clears the partial backings.
+ Self::clear_invalid_and_backings_unchecked();
+ });
+ }
+
+ /// Clear all relevant information of an invalid solution.
+ ///
+ /// Should be called at any step, if we encounter an issue which makes the solution
+ /// infeasible.
+ pub(crate) fn clear_invalid_and_backings() {
+ Self::mutate_checked(Self::clear_invalid_and_backings_unchecked)
+ }
+
+ /// Same as [`clear_invalid_and_backings`], but without any checks for the integrity of the
+ /// storage item group.
+ pub(crate) fn clear_invalid_and_backings_unchecked() {
+ // clear is safe as we delete at most `Pages` entries, and `Pages` is bounded.
+ match Self::invalid() {
+ ValidSolution::X => clear_paged_map!(QueuedSolutionX::<T>),
+ ValidSolution::Y => clear_paged_map!(QueuedSolutionY::<T>),
+ };
+ clear_paged_map!(QueuedSolutionBackings::<T>);
+ }
+
+ /// Write a single page of a valid solution into the `invalid` variant of the storage.
+ ///
+ /// This should only be called once we are sure that this particular page is 100% correct.
+ ///
+ /// This is called after *a page* has been validated, but the entire solution is not yet
+ /// known to be valid. At this stage, we write to the invalid variant. Once all pages are
+ /// verified, a call to [`finalize_correct`] will seal the correct pages and flip the
+ /// invalid/valid variants.
+ pub(crate) fn set_invalid_page(page: PageIndex, supports: SupportsOfVerifier<Pallet<T>>) {
+ use frame_support::traits::TryCollect;
+ Self::mutate_checked(|| {
+ let backings: BoundedVec<_, _> = supports
+ .iter()
+ .map(|(x, s)| (x.clone(), PartialBackings { total: s.total, backers: s.voters.len() as u32 } ))
+ .try_collect()
+ .expect("`SupportsOfVerifier` is bounded by <Pallet<T> as Verifier>::MaxWinnersPerPage, which is assured to be the same as `T::MaxWinnersPerPage` in an integrity test");
+ QueuedSolutionBackings::<T>::insert(page, backings);
+
+ match Self::invalid() {
+ ValidSolution::X => QueuedSolutionX::<T>::insert(page, supports),
+ ValidSolution::Y => QueuedSolutionY::<T>::insert(page, supports),
+ }
+ })
+ }
+
+ /// Write a single page to the valid variant directly.
+ ///
+ /// This is not the normal flow of writing, and the solution is not checked.
+ ///
+ /// This is only useful to override the valid solution with a single (likely backup)
+ /// solution.
+ pub(crate) fn force_set_single_page_valid(
+ page: PageIndex,
+ supports: SupportsOfVerifier<Pallet<T>>,
+ score: ElectionScore,
+ ) {
+ Self::mutate_checked(|| {
+ // clear everything about valid solutions.
+ match Self::valid() {
+ ValidSolution::X => clear_paged_map!(QueuedSolutionX::<T>),
+ ValidSolution::Y => clear_paged_map!(QueuedSolutionY::<T>),
+ };
+ QueuedSolutionScore::<T>::kill();
+
+ // write a single new page.
+ match Self::valid() {
+ ValidSolution::X => QueuedSolutionX::<T>::insert(page, supports),
+ ValidSolution::Y => QueuedSolutionY::<T>::insert(page, supports),
+ }
+
+ // write the score.
+ QueuedSolutionScore::<T>::put(score);
+ })
+ }
+
+ /// Clear all storage items.
+ ///
+ /// Should only be called once everything is done.
+ pub(crate) fn kill() {
+ Self::mutate_checked(|| {
+ clear_paged_map!(QueuedSolutionX::<T>);
+ clear_paged_map!(QueuedSolutionY::<T>);
+ QueuedValidVariant::<T>::kill();
+ clear_paged_map!(QueuedSolutionBackings::<T>);
+ QueuedSolutionScore::<T>::kill();
+ })
+ }
+
+ // -- non-mutating methods.
+
+ /// Return the `score` and `winner_count` of verifying solution.
+ ///
+ /// Assumes that all the corresponding pages of `QueuedSolutionBackings` exist, then it
+ /// computes the final score of the solution that is currently at the end of its
+ /// verification process.
+ ///
+ /// This solution corresponds to whatever is stored in the INVALID variant of
+ /// `QueuedSolution`. Recall that the score of this solution is not yet verified, so it
+ /// should never become `valid`.
+ pub(crate) fn compute_invalid_score() -> Result<(ElectionScore, u32), FeasibilityError> {
+ // ensure that this is only called when all pages are verified individually.
+ // TODO: this is a very EXPENSIVE, and perhaps unreasonable check. A partial solution
+ // could very well be valid.
+ if QueuedSolutionBackings::<T>::iter_keys().count() != T::Pages::get() as usize {
+ return Err(FeasibilityError::Incomplete)
+ }
+
+ let mut total_supports: BTreeMap<T::AccountId, PartialBackings> = Default::default();
+ for (who, PartialBackings { backers, total }) in
+ QueuedSolutionBackings::<T>::iter().flat_map(|(_, pb)| pb)
+ {
+ let entry = total_supports.entry(who).or_default();
+ entry.total = entry.total.saturating_add(total);
+ entry.backers = entry.backers.saturating_add(backers);
+
+ if entry.backers > T::MaxBackersPerWinnerFinal::get() {
+ return Err(FeasibilityError::FailedToBoundSupport)
+ }
+ }
+
+ let winner_count = total_supports.len() as u32;
+ let score = evaluate_support(total_supports.into_values());
+
+ Ok((score, winner_count))
+ }
+
+ /// The score of the current best solution, if any.
+ pub(crate) fn queued_score() -> Option<ElectionScore> {
+ QueuedSolutionScore::<T>::get()
+ }
+
+ /// Get a page of the current queued (aka valid) solution.
+ pub(crate) fn get_queued_solution_page(
+ page: PageIndex,
+ ) -> Option<SupportsOfVerifier<Pallet<T>>> {
+ match Self::valid() {
+ ValidSolution::X => QueuedSolutionX::<T>::get(page),
+ ValidSolution::Y => QueuedSolutionY::<T>::get(page),
+ }
+ }
+
+ fn valid() -> ValidSolution {
+ QueuedValidVariant::<T>::get()
+ }
+
+ fn invalid() -> ValidSolution {
+ Self::valid().other()
+ }
+ }
+
+ #[allow(unused)]
+ #[cfg(any(test, feature = "runtime-benchmarks", feature = "try-runtime", debug_assertions))]
+ impl<T: Config> QueuedSolution<T> {
+ pub(crate) fn valid_iter(
+ ) -> impl Iterator<Item = (PageIndex, SupportsOfVerifier<Pallet<T>>)> {
+ match Self::valid() {
+ ValidSolution::X => QueuedSolutionX::<T>::iter(),
+ ValidSolution::Y => QueuedSolutionY::<T>::iter(),
+ }
+ }
+
+ pub(crate) fn invalid_iter(
+ ) -> impl Iterator<Item = (PageIndex, SupportsOfVerifier<Pallet<T>>)> {
+ match Self::invalid() {
+ ValidSolution::X => QueuedSolutionX::<T>::iter(),
+ ValidSolution::Y => QueuedSolutionY::<T>::iter(),
+ }
+ }
+
+ pub(crate) fn get_valid_page(page: PageIndex) -> Option<SupportsOfVerifier<Pallet<T>>> {
+ match Self::valid() {
+ ValidSolution::X => QueuedSolutionX::<T>::get(page),
+ ValidSolution::Y => QueuedSolutionY::<T>::get(page),
+ }
+ }
+
+ pub(crate) fn backing_iter() -> impl Iterator<
+ Item = (PageIndex, BoundedVec<(T::AccountId, PartialBackings), T::MaxWinnersPerPage>),
+ > {
+ QueuedSolutionBackings::<T>::iter()
+ }
+
+ /// Ensure that all the storage items managed by this struct are in `kill` state, meaning
+ /// that in the expect state after an election is OVER.
+ pub(crate) fn assert_killed() {
+ use frame_support::assert_storage_noop;
+ assert_storage_noop!(Self::kill());
+ }
+
+ /// Ensure this storage item group is in correct state.
+ pub(crate) fn sanity_check() -> Result<(), sp_runtime::DispatchError> {
+ // score is correct and better than min-score.
+ ensure!(
+ Pallet::<T>::minimum_score()
+ .zip(Self::queued_score())
+ .map_or(true, |(min_score, score)| score
+ .strict_threshold_better(min_score, Perbill::zero())),
+ "queued solution has weak score (min-score)"
+ );
+
+ if let Some(queued_score) = Self::queued_score() {
+ let mut backing_map: BTreeMap<T::AccountId, PartialBackings> = BTreeMap::new();
+ Self::valid_iter()
+ .flat_map(|(_, supports)| supports)
+ .for_each(|(who, support)| {
+ let entry = backing_map.entry(who).or_default();
+ entry.total = entry.total.saturating_add(support.total);
+ });
+ let real_score = evaluate_support(backing_map.into_values());
+ ensure!(real_score == queued_score, "queued solution has wrong score");
+ }
+
+ // The number of existing keys in `QueuedSolutionBackings` must always match that of
+ // the INVALID variant.
+ ensure!(
+ QueuedSolutionBackings::<T>::iter().count() == Self::invalid_iter().count(),
+ "incorrect number of backings pages",
+ );
+
+ if let Status::Nothing = StatusStorage::<T>::get() {
+ ensure!(Self::invalid_iter().count() == 0, "dangling data in invalid variant");
+ }
+
+ Ok(())
+ }
+ }
+
+ // -- private storage items, managed by `QueuedSolution`.
+
+ /// The `X` variant of the current queued solution. Might be the valid one or not.
+ ///
+ /// The two variants of this storage item is to avoid the need of copying. Recall that once a
+ /// `VerifyingSolution` is being processed, it needs to write its partial supports *somewhere*.
+ /// Writing theses supports on top of a *good* queued supports is wrong, since we might bail.
+ /// Writing them to a bugger and copying at the ned is slightly better, but expensive. This flag
+ /// system is best of both worlds.
+ #[pallet::storage]
+ type QueuedSolutionX<T: Config> =
+ StorageMap<_, Twox64Concat, PageIndex, SupportsOfVerifier<Pallet<T>>>;
+ #[pallet::storage]
+ /// The `Y` variant of the current queued solution. Might be the valid one or not.
+ type QueuedSolutionY<T: Config> =
+ StorageMap<_, Twox64Concat, PageIndex, SupportsOfVerifier<Pallet<T>>>;
+ /// Pointer to the variant of [`QueuedSolutionX`] or [`QueuedSolutionY`] that is currently
+ /// valid.
+ #[pallet::storage]
+ type QueuedValidVariant<T: Config> = StorageValue<_, ValidSolution, ValueQuery>;
+ /// The `(amount, count)` of backings, divided per page.
+ ///
+ /// This is stored because in the last block of verification we need them to compute the score,
+ /// and check `MaxBackersPerWinnerFinal`.
+ ///
+ /// This can only ever live for the invalid variant of the solution. Once it is valid, we don't
+ /// need this information anymore; the score is already computed once in
+ /// [`QueuedSolutionScore`], and the backing counts are checked.
+ #[pallet::storage]
+ type QueuedSolutionBackings<T: Config> = StorageMap<
+ _,
+ Twox64Concat,
+ PageIndex,
+ BoundedVec<(T::AccountId, PartialBackings), T::MaxWinnersPerPage>,
+ >;
+ /// The score of the valid variant of [`QueuedSolution`].
+ ///
+ /// This only ever lives for the `valid` variant.
+ #[pallet::storage]
+ type QueuedSolutionScore<T: Config> = StorageValue<_, ElectionScore>;
+ // -- ^^ private storage items, managed by `QueuedSolution`.
+
+ /// The minimum score that each solution must attain in order to be considered feasible.
+ #[pallet::storage]
+ #[pallet::getter(fn minimum_score)]
+ pub(crate) type MinimumScore<T: Config> = StorageValue<_, ElectionScore>;
+
+ /// Storage item for [`Status`].
+ #[pallet::storage]
+ #[pallet::getter(fn status_storage)]
+ pub(crate) type StatusStorage<T: Config> = StorageValue<_, Status, ValueQuery>;
+
+ #[pallet::pallet]
+ pub struct Pallet<T>(PhantomData<T>);
+
+ #[pallet::call]
+ impl<T: Config> Pallet<T> {}
+
+ #[pallet::hooks]
+ impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {
+ fn integrity_test() {
+ // ensure that we have funneled some of our type parameters EXACTLY as-is to the
+ // verifier trait interface we implement.
+ assert_eq!(T::MaxWinnersPerPage::get(), <Self as Verifier>::MaxWinnersPerPage::get());
+ assert_eq!(
+ T::MaxBackersPerWinner::get(),
+ <Self as Verifier>::MaxBackersPerWinner::get()
+ );
+ assert!(T::MaxBackersPerWinner::get() <= T::MaxBackersPerWinnerFinal::get());
+ }
+
+ fn on_initialize(_n: BlockNumberFor<T>) -> Weight {
+ Self::do_on_initialize()
+ }
+
+ #[cfg(feature = "try-runtime")]
+ fn try_state(_now: BlockNumberFor<T>) -> Result<(), sp_runtime::TryRuntimeError> {
+ Self::do_try_state(_now)
+ }
+ }
+}
+
+impl<T: Config> Pallet<T> {
+ fn do_on_initialize() -> Weight {
+ if let Status::Ongoing(current_page) = Self::status_storage() {
+ let maybe_page_solution =
+ <T::SolutionDataProvider as SolutionDataProvider>::get_page(current_page);
+
+ if maybe_page_solution.as_ref().is_none() {
+ // the data provider has zilch, revert to a clean state, waiting for a new `start`.
+ sublog!(
+ error,
+ "verifier",
+ "T::SolutionDataProvider failed to deliver page {}. This is an unexpected error.",
+ current_page,
+ );
+
+ QueuedSolution::<T>::clear_invalid_and_backings();
+ StatusStorage::<T>::put(Status::Nothing);
+ T::SolutionDataProvider::report_result(VerificationResult::DataUnavailable);
+
+ Self::deposit_event(Event::<T>::VerificationDataUnavailable);
+ // TODO: weight
+ return Default::default();
+ }
+
+ let page_solution = maybe_page_solution.expect("Option checked to not be None; qed");
+ let maybe_supports = Self::feasibility_check_page_inner(page_solution, current_page);
+
+ sublog!(
+ debug,
+ "verifier",
+ "verified page {} of a solution, outcome = {:?}",
+ current_page,
+ maybe_supports.as_ref().map(|s| s.len())
+ );
+
+ match maybe_supports {
+ Ok(supports) => {
+ Self::deposit_event(Event::<T>::Verified(current_page, supports.len() as u32));
+ QueuedSolution::<T>::set_invalid_page(current_page, supports);
+
+ if current_page > crate::Pallet::<T>::lsp() {
+ // not last page, just tick forward.
+ StatusStorage::<T>::put(Status::Ongoing(current_page.saturating_sub(1)));
+ VerifierWeightsOf::<T>::on_initialize_valid_non_terminal()
+ } else {
+ // last page, finalize everything. Solution data provider must always have a
+ // score for us at this point. Not much point in reporting a result, we just
+ // assume default score, which will almost certainly fail and cause a proper
+ // cleanup of the pallet, which is what we want anyways.
+ let claimed_score =
+ T::SolutionDataProvider::get_score().defensive_unwrap_or_default();
+
+ // in both cases of the following match, we are not back to the nothing
+ // state.
+ StatusStorage::<T>::put(Status::Nothing);
+
+ match Self::finalize_async_verification(claimed_score) {
+ Ok(_) => {
+ T::SolutionDataProvider::report_result(VerificationResult::Queued);
+ },
+ Err(_) => {
+ T::SolutionDataProvider::report_result(
+ VerificationResult::Rejected,
+ );
+ // In case of any of the errors, kill the solution.
+ QueuedSolution::<T>::clear_invalid_and_backings();
+ },
+ }
+ VerifierWeightsOf::<T>::on_initialize_valid_terminal()
+ }
+ },
+ Err(err) => {
+ // the page solution was invalid.
+ Self::deposit_event(Event::<T>::VerificationFailed(current_page, err));
+ StatusStorage::<T>::put(Status::Nothing);
+ QueuedSolution::<T>::clear_invalid_and_backings();
+ T::SolutionDataProvider::report_result(VerificationResult::Rejected);
+ // TODO: use lower weight if non-terminal.
+ VerifierWeightsOf::<T>::on_initialize_invalid_terminal()
+ },
+ }
+ } else {
+ // TODO: weight for when nothing happens
+ Default::default()
+ }
+ }
+
+ fn do_verify_synchronous(
+ partial_solution: SolutionOf<T::MinerConfig>,
+ claimed_score: ElectionScore,
+ page: PageIndex,
+ ) -> Result<SupportsOfVerifier<Self>, FeasibilityError> {
+ // first, ensure this score will be good enough, even if valid..
+ let _ = Self::ensure_score_quality(claimed_score)?;
+
+ // then actually check feasibility...
+ // NOTE: `MaxBackersPerWinnerFinal` is also already checked here.
+ let supports = Self::feasibility_check_page_inner(partial_solution, page)?;
+
+ // then check that the number of winners was exactly enough..
+ let desired_targets =
+ crate::Snapshot::<T>::desired_targets().ok_or(FeasibilityError::SnapshotUnavailable)?;
+ ensure!(supports.len() as u32 == desired_targets, FeasibilityError::WrongWinnerCount);
+
+ // then check the score was truth..
+ let truth_score = supports.evaluate();
+ ensure!(truth_score == claimed_score, FeasibilityError::InvalidScore);
+
+ // and finally queue the solution.
+ QueuedSolution::<T>::force_set_single_page_valid(page, supports.clone(), truth_score);
+
+ Ok(supports)
+ }
+
+ /// Finalize an asynchronous verification. Checks the final score for correctness, and ensures
+ /// that it matches all of the criteria.
+ ///
+ /// This should only be called when all pages of an async verification are done.
+ ///
+ /// Returns:
+ /// - `Ok()` if everything is okay, at which point the valid variant of the queued solution will
+ /// be updated. Returns
+ /// - `Err(Feasibility)` if any of the last verification steps fail.
+ fn finalize_async_verification(claimed_score: ElectionScore) -> Result<(), FeasibilityError> {
+ let outcome = QueuedSolution::<T>::compute_invalid_score()
+ .and_then(|(final_score, winner_count)| {
+ let desired_targets = crate::Snapshot::<T>::desired_targets().unwrap();
+ // claimed_score checked prior in seal_unverified_solution
+ match (final_score == claimed_score, winner_count == desired_targets) {
+ (true, true) => {
+ // all good, finalize this solution
+ // NOTE: must be before the call to `finalize_correct`.
+ Self::deposit_event(Event::<T>::Queued(
+ final_score,
+ QueuedSolution::<T>::queued_score(), /* the previous score, now
+ * ejected. */
+ ));
+ QueuedSolution::<T>::finalize_correct(final_score);
+ Ok(())
+ },
+ (false, true) => Err(FeasibilityError::InvalidScore),
+ (true, false) => Err(FeasibilityError::WrongWinnerCount),
+ (false, false) => Err(FeasibilityError::InvalidScore),
+ }
+ })
+ .map_err(|err| {
+ sublog!(warn, "verifier", "Finalizing solution was invalid due to {:?}.", err);
+ // and deposit an event about it.
+ Self::deposit_event(Event::<T>::VerificationFailed(0, err.clone()));
+ err
+ });
+ sublog!(debug, "verifier", "finalize verification outcome: {:?}", outcome);
+ outcome
+ }
+
+ /// Ensure that the given score is:
+ ///
+ /// - better than the queued solution, if one exists.
+ /// - greater than the minimum untrusted score.
+ pub(crate) fn ensure_score_quality(score: ElectionScore) -> Result<(), FeasibilityError> {
+ let is_improvement = <Self as Verifier>::queued_score().map_or(true, |best_score| {
+ score.strict_threshold_better(best_score, T::SolutionImprovementThreshold::get())
+ });
+ ensure!(is_improvement, FeasibilityError::ScoreTooLow);
+
+ let is_greater_than_min_trusted = Self::minimum_score()
+ .map_or(true, |min_score| score.strict_threshold_better(min_score, Perbill::zero()));
+ ensure!(is_greater_than_min_trusted, FeasibilityError::ScoreTooLow);
+
+ Ok(())
+ }
+
+ /// Do the full feasibility check:
+ ///
+ /// - check all edges.
+ /// - checks `MaxBackersPerWinner` to be respected IN THIS PAGE.
+ /// - checks the number of winners to be less than or equal to `DesiredTargets` IN THIS PAGE
+ /// ONLY.
+ pub(super) fn feasibility_check_page_inner(
+ partial_solution: SolutionOf<T::MinerConfig>,
+ page: PageIndex,
+ ) -> Result<SupportsOfVerifier<Self>, FeasibilityError> {
+ // Read the corresponding snapshots.
+ let snapshot_targets =
+ crate::Snapshot::<T>::targets().ok_or(FeasibilityError::SnapshotUnavailable)?;
+ let snapshot_voters =
+ crate::Snapshot::<T>::voters(page).ok_or(FeasibilityError::SnapshotUnavailable)?;
+ let desired_targets =
+ crate::Snapshot::<T>::desired_targets().ok_or(FeasibilityError::SnapshotUnavailable)?;
+
+ feasibility_check_page_inner_with_snapshot::<T::MinerConfig>(
+ partial_solution,
+ &snapshot_voters,
+ &snapshot_targets,
+ desired_targets,
+ )
+ .and_then(|miner_supports| {
+ SupportsOfVerifier::<Self>::try_from_other_bounds(miner_supports)
+ .defensive_map_err(|_| FeasibilityError::FailedToBoundSupport)
+ })
+ }
+
+ #[cfg(any(test, feature = "runtime-benchmarks", feature = "try-runtime"))]
+ pub(crate) fn do_try_state(_now: BlockNumberFor<T>) -> Result<(), sp_runtime::TryRuntimeError> {
+ QueuedSolution::<T>::sanity_check()
+ }
+}
+
+/// Same as `feasibility_check_page_inner`, but with a snapshot.
+///
+/// This is exported as a standalone function, relying on `MinerConfig` rather than `Config` so that
+/// it can be used in any offchain miner.
+pub fn feasibility_check_page_inner_with_snapshot<T: MinerConfig>(
+ partial_solution: SolutionOf<T>,
+ snapshot_voters: &BoundedVec<VoterOf<T>, T::VoterSnapshotPerBlock>,
+ snapshot_targets: &BoundedVec<T::AccountId, T::TargetSnapshotPerBlock>,
+ desired_targets: u32,
+) -> Result<SupportsOfMiner<T>, FeasibilityError> {
+ // ----- Start building. First, we need some closures.
+ let cache = helpers::generate_voter_cache::<T, _>(snapshot_voters);
+ let voter_at = helpers::voter_at_fn::<T>(snapshot_voters);
+ let target_at = helpers::target_at_fn::<T>(snapshot_targets);
+ let voter_index = helpers::voter_index_fn_usize::<T>(&cache);
+
+ // Then convert solution -> assignment. This will fail if any of the indices are
+ // gibberish.
+ let assignments = partial_solution
+ .into_assignment(voter_at, target_at)
+ .map_err::<FeasibilityError, _>(Into::into)?;
+
+ // Ensure that assignments are all correct.
+ let _ = assignments
+ .iter()
+ .map(|ref assignment| {
+ // Check that assignment.who is actually a voter (defensive-only). NOTE: while
+ // using the index map from `voter_index` is better than a blind linear search,
+ // this *still* has room for optimization. Note that we had the index when we
+ // did `solution -> assignment` and we lost it. Ideal is to keep the index
+ // around.
+
+ // Defensive-only: must exist in the snapshot.
+ let snapshot_index =
+ voter_index(&assignment.who).ok_or(FeasibilityError::InvalidVoter)?;
+ // Defensive-only: index comes from the snapshot, must exist.
+ let (_voter, _stake, targets) =
+ snapshot_voters.get(snapshot_index).ok_or(FeasibilityError::InvalidVoter)?;
+ debug_assert!(*_voter == assignment.who);
+
+ // Check that all of the targets are valid based on the snapshot.
+ if assignment.distribution.iter().any(|(t, _)| !targets.contains(t)) {
+ return Err(FeasibilityError::InvalidVote)
+ }
+ Ok(())
+ })
+ .collect::<Result<(), FeasibilityError>>()?;
+
+ // ----- Start building support. First, we need one more closure.
+ let stake_of = helpers::stake_of_fn::<T, _>(&snapshot_voters, &cache);
+
+ // This might fail if the normalization fails. Very unlikely. See `integrity_test`.
+ let staked_assignments =
+ sp_npos_elections::assignment_ratio_to_staked_normalized(assignments, stake_of)
+ .map_err::<FeasibilityError, _>(Into::into)?;
+
+ let supports = sp_npos_elections::to_supports(&staked_assignments);
+
+ // Ensure some heuristics. These conditions must hold in the **entire** support, this is
+ // just a single page. But, they must hold in a single page as well.
+ ensure!((supports.len() as u32) <= desired_targets, FeasibilityError::WrongWinnerCount);
+
+ // almost-defensive-only: `MaxBackersPerWinner` is already checked. A sane value of
+ // `MaxWinnersPerPage` should be more than any possible value of `desired_targets()`, which
+ // is ALSO checked, so this conversion can almost never fail.
+ let bounded_supports =
+ supports.try_into().map_err(|_| FeasibilityError::FailedToBoundSupport)?;
+ Ok(bounded_supports)
+}
+
+impl<T: Config> Verifier for Pallet<T> {
+ type AccountId = T::AccountId;
+ type Solution = SolutionOf<T::MinerConfig>;
+ type MaxBackersPerWinner = T::MaxBackersPerWinner;
+ type MaxWinnersPerPage = T::MaxWinnersPerPage;
+ type MaxBackersPerWinnerFinal = T::MaxBackersPerWinnerFinal;
+
+ fn set_minimum_score(score: ElectionScore) {
+ MinimumScore::<T>::put(score);
+ }
+
+ fn ensure_claimed_score_improves(claimed_score: ElectionScore) -> bool {
+ Self::ensure_score_quality(claimed_score).is_ok()
+ }
+
+ fn queued_score() -> Option<ElectionScore> {
+ QueuedSolution::<T>::queued_score()
+ }
+
+ fn kill() {
+ QueuedSolution::<T>::kill();
+ <StatusStorage<T>>::put(Status::Nothing);
+ }
+
+ fn get_queued_solution_page(page: PageIndex) -> Option<SupportsOfVerifier<Self>> {
+ QueuedSolution::<T>::get_queued_solution_page(page)
+ }
+
+ fn verify_synchronous(
+ partial_solution: Self::Solution,
+ claimed_score: ElectionScore,
+ page: PageIndex,
+ ) -> Result<SupportsOfVerifier<Self>, FeasibilityError> {
+ let maybe_current_score = Self::queued_score();
+ match Self::do_verify_synchronous(partial_solution, claimed_score, page) {
+ Ok(supports) => {
+ sublog!(
+ info,
+ "verifier",
+ "queued a sync solution with score {:?} for page {}",
+ claimed_score,
+ page
+ );
+ Self::deposit_event(Event::<T>::Verified(page, supports.len() as u32));
+ Self::deposit_event(Event::<T>::Queued(claimed_score, maybe_current_score));
+ Ok(supports)
+ },
+ Err(fe) => {
+ sublog!(
+ warn,
+ "verifier",
+ "sync verification of page {} failed due to {:?}.",
+ page,
+ fe
+ );
+ Self::deposit_event(Event::<T>::VerificationFailed(page, fe.clone()));
+ Err(fe)
+ },
+ }
+ }
+
+ fn force_set_single_page_valid(
+ partial_supports: SupportsOfVerifier<Self>,
+ page: PageIndex,
+ score: ElectionScore,
+ ) {
+ Self::deposit_event(Event::<T>::Queued(score, QueuedSolution::<T>::queued_score()));
+ QueuedSolution::<T>::force_set_single_page_valid(page, partial_supports, score);
+ }
+}
+
+impl<T: Config> AsynchronousVerifier for Pallet<T> {
+ type SolutionDataProvider = T::SolutionDataProvider;
+
+ fn status() -> Status {
+ Pallet::<T>::status_storage()
+ }
+
+ fn start() -> Result<(), &'static str> {
+ sublog!(info, "verifier", "start signal received.");
+ if let Status::Nothing = Self::status() {
+ let claimed_score = Self::SolutionDataProvider::get_score().unwrap_or_default();
+ if Self::ensure_score_quality(claimed_score).is_err() {
+ // don't do anything, report back that this solution was garbage.
+ Self::deposit_event(Event::<T>::VerificationFailed(
+ crate::Pallet::<T>::msp(),
+ FeasibilityError::ScoreTooLow,
+ ));
+ T::SolutionDataProvider::report_result(VerificationResult::Rejected);
+ // Despite being an instant-reject, this was a successful `start` operation.
+ Ok(())
+ } else {
+ // This solution is good enough to win, we start verifying it in the next block.
+ StatusStorage::<T>::put(Status::Ongoing(crate::Pallet::<T>::msp()));
+ Ok(())
+ }
+ } else {
+ sublog!(warn, "verifier", "start signal received while busy. This will be ignored.");
+ Err("verification ongoing")
+ }
+ }
+
+ fn stop() {
+ sublog!(warn, "verifier", "stop signal received. clearing everything.");
+
+ // we clear any ongoing solution's no been verified in any case, although this should only
+ // exist if we were doing something.
+ #[cfg(debug_assertions)]
+ assert!(
+ !matches!(StatusStorage::<T>::get(), Status::Ongoing(_)) ||
+ (matches!(StatusStorage::<T>::get(), Status::Ongoing(_)) &&
+ QueuedSolution::<T>::invalid_iter().count() > 0)
+ );
+ QueuedSolution::<T>::clear_invalid_and_backings_unchecked();
+
+ // we also mutate the status back to doing nothing.
+ StatusStorage::<T>::mutate(|old| {
+ if matches!(old, Status::Ongoing(_)) {
+ T::SolutionDataProvider::report_result(VerificationResult::Rejected)
+ }
+ *old = Status::Nothing;
+ });
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/verifier/mod.rs b/substrate/frame/election-provider-multi-block/src/verifier/mod.rs
new file mode 100644
index 00000000000..98391daa546
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/verifier/mod.rs
@@ -0,0 +1,271 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! # The Verifier Pallet
+//!
+//! ### *Feasibility* Check
+//!
+//! Before explaining the pallet itself, it should be explained what a *verification* even means.
+//! Verification of a solution page ([`crate::unsigned::miner::MinerConfig::Solution`]) includes the
+//! process of checking all of its edges against a snapshot to be correct. For instance, all voters
+//! that are presented in a solution page must have actually voted for the winner that they are
+//! backing, based on the snapshot kept in the parent pallet.
+//!
+//! After checking all of the edges, a handful of other checks are performed:
+//!
+//! 1. Check that the total number of winners is sufficient (`DesiredTargets`).
+//! 2. Check that the claimed score ([`sp_npos_elections::ElectionScore`]) is correct,
+//! 3. and more than the minimum score that can be specified via [`Verifier::set_minimum_score`].
+//! 4. Check that all of the bounds of the solution are respected, namely
+//! [`Verifier::MaxBackersPerWinner`], [`Verifier::MaxWinnersPerPage`] and
+//! [`Verifier::MaxBackersPerWinnerFinal`].
+//!
+//! Note that the common factor of all of these checks is that they can ONLY be checked after all
+//! pages are already verified. So, In the case of a multi-page verification, these checks are
+//! performed at the last page.
+//!
+//! The errors that can arise while performing the feasibility check are encapsulated in
+//! [`verifier::FeasibilityError`].
+//!
+//! ## Modes of Verification
+//!
+//! The verifier pallet provide two modes of functionality:
+//!
+//! 1. Single-page, synchronous verification. This is useful in the context of single-page,
+//! emergency, or unsigned solutions that need to be verified on the fly. This is similar to how
+//! the old school `multi-phase` pallet works.
+//! 2. Multi-page, asynchronous verification. This is useful in the context of multi-page, signed
+//! solutions.
+//!
+//! Both of this, plus some helper functions, is exposed via the [`Verifier`] trait.
+//!
+//! ## Queued Solution
+//!
+//! once a solution has been verified, it is called a *queued solution*. It is sitting in a queue,
+//! waiting for either of:
+//!
+//! 1. being challenged and potentially replaced by better solution, if any.
+//! 2. being exported as the final outcome of the election.
+
+#[cfg(feature = "runtime-benchmarks")]
+pub mod benchmarking;
+mod impls;
+#[cfg(test)]
+mod tests;
+
+// internal imports
+use frame_election_provider_support::PageIndex;
+use impls::SupportsOfVerifier;
+pub use impls::{feasibility_check_page_inner_with_snapshot, pallet::*, Status};
+use sp_core::Get;
+use sp_npos_elections::ElectionScore;
+use sp_std::{fmt::Debug, prelude::*};
+
+pub use crate::weights::measured::pallet_election_provider_multi_block_verifier::*;
+
+/// Errors that can happen in the feasibility check.
+#[derive(Debug, Eq, PartialEq, codec::Encode, codec::Decode, scale_info::TypeInfo, Clone)]
+pub enum FeasibilityError {
+ /// Wrong number of winners presented.
+ WrongWinnerCount,
+ /// The snapshot is not available.
+ ///
+ /// Kinda defensive: The pallet should technically never attempt to do a feasibility check
+ /// when no snapshot is present.
+ SnapshotUnavailable,
+ /// A vote is invalid.
+ InvalidVote,
+ /// A voter is invalid.
+ InvalidVoter,
+ /// A winner is invalid.
+ InvalidWinner,
+ /// The given score was invalid.
+ InvalidScore,
+ /// The provided round is incorrect.
+ InvalidRound,
+ /// Solution does not have a good enough score.
+ ScoreTooLow,
+ /// The support type failed to be bounded.
+ ///
+ /// Relates to [`Config::MaxWinnersPerPage`], [`Config::MaxBackersPerWinner`] or
+ /// `MaxBackersPerWinnerFinal`
+ FailedToBoundSupport,
+ /// Internal error from the election crate.
+ NposElection(sp_npos_elections::Error),
+ /// The solution is incomplete, it has too few pages.
+ ///
+ /// This is (somewhat) synonym to `WrongPageCount` in other places.
+ Incomplete,
+}
+
+impl From<sp_npos_elections::Error> for FeasibilityError {
+ fn from(e: sp_npos_elections::Error) -> Self {
+ FeasibilityError::NposElection(e)
+ }
+}
+
+/// The interface of something that can verify solutions for other sub-pallets in the multi-block
+/// election pallet-network.
+pub trait Verifier {
+ /// The solution type.
+ type Solution;
+ /// The account if type.
+ type AccountId;
+
+ /// Maximum number of winners that can be represented in each page.
+ ///
+ /// A reasonable value for this should be the maximum number of winners that the election user
+ /// (e.g. the staking pallet) could ever desire.
+ type MaxWinnersPerPage: Get<u32>;
+ /// Maximum number of backers, per winner, among all pages of an election.
+ ///
+ /// This can only be checked at the very final step of verification.
+ type MaxBackersPerWinnerFinal: Get<u32>;
+ /// Maximum number of backers that each winner could have, per page.
+ type MaxBackersPerWinner: Get<u32>;
+
+ /// Set the minimum score that is acceptable for any solution.
+ ///
+ /// Henceforth, all solutions must have at least this degree of quality, single-page or
+ /// multi-page.
+ fn set_minimum_score(score: ElectionScore);
+
+ /// The score of the current best solution. `None` if there is none.
+ fn queued_score() -> Option<ElectionScore>;
+
+ /// Check if the claimed score is sufficient to challenge the current queued solution, if any.
+ fn ensure_claimed_score_improves(claimed_score: ElectionScore) -> bool;
+
+ /// Clear all storage items, there's nothing else to do until further notice.
+ fn kill();
+
+ /// Get a single page of the best verified solution, if any.
+ ///
+ /// It is the responsibility of the call site to call this function with all appropriate
+ /// `page` arguments.
+ fn get_queued_solution_page(page: PageIndex) -> Option<SupportsOfVerifier<Self>>;
+
+ /// Perform the feasibility check on the given single-page solution.
+ ///
+ /// This will perform:
+ ///
+ /// 1. feasibility-check
+ /// 2. claimed score is correct and an improvement.
+ /// 3. bounds are respected
+ ///
+ /// Corresponding snapshot (represented by `page`) is assumed to be available.
+ ///
+ /// If all checks pass, the solution is also queued.
+ fn verify_synchronous(
+ partial_solution: Self::Solution,
+ claimed_score: ElectionScore,
+ page: PageIndex,
+ ) -> Result<SupportsOfVerifier<Self>, FeasibilityError>;
+
+ /// Force set a single page solution as the valid one.
+ ///
+ /// Will erase any previous solution. Should only be used in case of emergency fallbacks,
+ /// trusted governance solutions and so on.
+ fn force_set_single_page_valid(
+ partial_supports: SupportsOfVerifier<Self>,
+ page: PageIndex,
+ score: ElectionScore,
+ );
+}
+
+/// Simple enum to encapsulate the result of the verification of a candidate solution.
+#[derive(Clone, Copy, Debug)]
+#[cfg_attr(test, derive(PartialEq, Eq))]
+pub enum VerificationResult {
+ /// Solution is valid and is queued.
+ Queued,
+ /// Solution is rejected, for whichever of the multiple reasons that it could be.
+ Rejected,
+ /// The data needed (solution pages or the score) was unavailable. This should rarely happen.
+ DataUnavailable,
+}
+
+/// Something that can provide candidate solutions to the verifier.
+///
+/// In reality, this can be implemented by the [`crate::signed::Pallet`], where signed solutions are
+/// queued and sorted based on claimed score, and they are put forth one by one, from best to worse.
+pub trait SolutionDataProvider {
+ /// The opaque solution type.
+ type Solution;
+
+ /// Return the `page`th page of the current best solution that the data provider has in store.
+ ///
+ /// If no candidate solutions are available, then None is returned.
+ fn get_page(page: PageIndex) -> Option<Self::Solution>;
+
+ /// Get the claimed score of the current best solution.
+ fn get_score() -> Option<ElectionScore>;
+
+ /// Hook to report back the results of the verification of the current candidate solution that
+ /// is being exposed via [`Self::get_page`] and [`Self::get_score`].
+ ///
+ /// Every time that this is called, the verifier [`AsynchronousVerifier`] goes back to the
+ /// [`Status::Nothing`] state, and it is the responsibility of [`Self`] to call `start` again,
+ /// if desired.
+ fn report_result(result: VerificationResult);
+}
+
+/// Something that can do the verification asynchronously.
+pub trait AsynchronousVerifier: Verifier {
+ /// The data provider that can provide the candidate solution, and to whom we report back the
+ /// results.
+ type SolutionDataProvider: SolutionDataProvider;
+
+ /// Get the current stage of the verification process.
+ fn status() -> Status;
+
+ /// Start a verification process.
+ ///
+ /// Returns `Ok(())` if verification started successfully, and `Err(..)` if a verification is
+ /// already ongoing and therefore a new one cannot be started.
+ ///
+ /// From the coming block onwards, the verifier will start and fetch the relevant information
+ /// and solution pages from [`SolutionDataProvider`]. It is expected that the
+ /// [`SolutionDataProvider`] is ready before calling [`Self::start`].
+ ///
+ /// Pages of the solution are fetched sequentially and in order from [`SolutionDataProvider`],
+ /// from `msp` to `lsp`.
+ ///
+ /// This ends in either of the two:
+ ///
+ /// 1. All pages, including the final checks (like score and other facts that can only be
+ /// derived from a full solution) are valid and the solution is verified. The solution is
+ /// queued and is ready for further export.
+ /// 2. The solution checks verification at one of the steps. Nothing is stored inside the
+ /// verifier pallet and all intermediary data is removed.
+ ///
+ /// In both cases, the [`SolutionDataProvider`] is informed via
+ /// [`SolutionDataProvider::report_result`]. It is sensible for the data provide to call `start`
+ /// again if the verification has failed, and nothing otherwise. Indeed, the
+ /// [`SolutionDataProvider`] must adjust its internal state such that it returns a new candidate
+ /// solution after each failure.
+ fn start() -> Result<(), &'static str>;
+
+ /// Stop the verification.
+ ///
+ /// This is a force-stop operation, and should only be used in extreme cases where the
+ /// [`SolutionDataProvider`] wants to suddenly bail-out.
+ ///
+ /// An implementation should make sure that no loose ends remain state-wise, and everything is
+ /// cleaned.
+ fn stop();
+}
diff --git a/substrate/frame/election-provider-multi-block/src/verifier/tests.rs b/substrate/frame/election-provider-multi-block/src/verifier/tests.rs
new file mode 100644
index 00000000000..6fd06923284
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/verifier/tests.rs
@@ -0,0 +1,1266 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use crate::{
+ mock::*,
+ types::*,
+ verifier::{impls::Status, *},
+ *,
+};
+
+use frame_election_provider_support::Support;
+use frame_support::{assert_noop, assert_ok};
+use sp_runtime::traits::Bounded;
+
+mod feasibility_check {
+ use super::*;
+
+ #[test]
+ fn missing_snapshot() {
+ ExtBuilder::verifier().build_unchecked().execute_with(|| {
+ // create snapshot just so that we can create a solution..
+ roll_to_snapshot_created();
+ let paged = mine_full_solution().unwrap();
+
+ // ..remove the only page of the target snapshot.
+ crate::Snapshot::<Runtime>::remove_target_page();
+
+ assert_noop!(
+ VerifierPallet::feasibility_check_page_inner(paged.solution_pages[0].clone(), 0),
+ FeasibilityError::SnapshotUnavailable
+ );
+ });
+
+ ExtBuilder::verifier().pages(2).build_unchecked().execute_with(|| {
+ roll_to_snapshot_created();
+ let paged = mine_full_solution().unwrap();
+
+ // ..remove just one of the pages of voter snapshot that is relevant.
+ crate::Snapshot::<Runtime>::remove_voter_page(0);
+
+ assert_noop!(
+ VerifierPallet::feasibility_check_page_inner(paged.solution_pages[0].clone(), 0),
+ FeasibilityError::SnapshotUnavailable
+ );
+ });
+
+ ExtBuilder::verifier().pages(2).build_unchecked().execute_with(|| {
+ roll_to_snapshot_created();
+ let paged = mine_full_solution().unwrap();
+
+ // ..removing this page is not important, because we check page 0.
+ crate::Snapshot::<Runtime>::remove_voter_page(1);
+
+ assert_ok!(VerifierPallet::feasibility_check_page_inner(
+ paged.solution_pages[0].clone(),
+ 0
+ ));
+ });
+
+ ExtBuilder::verifier().pages(2).build_unchecked().execute_with(|| {
+ roll_to_snapshot_created();
+ let paged = mine_full_solution().unwrap();
+
+ // `DesiredTargets` missing is also an error
+ crate::Snapshot::<Runtime>::kill_desired_targets();
+
+ assert_noop!(
+ VerifierPallet::feasibility_check_page_inner(paged.solution_pages[0].clone(), 0),
+ FeasibilityError::SnapshotUnavailable
+ );
+ });
+
+ ExtBuilder::verifier().pages(2).build_unchecked().execute_with(|| {
+ roll_to_snapshot_created();
+ let paged = mine_full_solution().unwrap();
+
+ // `DesiredTargets` is not checked here.
+ crate::Snapshot::<Runtime>::remove_target_page();
+
+ assert_noop!(
+ VerifierPallet::feasibility_check_page_inner(paged.solution_pages[1].clone(), 0),
+ FeasibilityError::SnapshotUnavailable
+ );
+ });
+ }
+
+ #[test]
+ fn winner_indices_single_page_must_be_in_bounds() {
+ ExtBuilder::verifier().pages(1).desired_targets(2).build_and_execute(|| {
+ roll_to_snapshot_created();
+ let mut paged = mine_full_solution().unwrap();
+ assert_eq!(crate::Snapshot::<Runtime>::targets().unwrap().len(), 4);
+ // ----------------------------------------------------^^ valid range is [0..3].
+
+ // Swap all votes from 3 to 4. here are only 4 targets, so index 4 is invalid.
+ paged.solution_pages[0]
+ .votes1
+ .iter_mut()
+ .filter(|(_, t)| *t == TargetIndex::from(3u16))
+ .for_each(|(_, t)| *t += 1);
+
+ assert_noop!(
+ VerifierPallet::feasibility_check_page_inner(paged.solution_pages[0].clone(), 0),
+ FeasibilityError::NposElection(sp_npos_elections::Error::SolutionInvalidIndex)
+ );
+ })
+ }
+
+ #[test]
+ fn voter_indices_per_page_must_be_in_bounds() {
+ ExtBuilder::verifier()
+ .pages(1)
+ .voter_per_page(Bounded::max_value())
+ .desired_targets(2)
+ .build_and_execute(|| {
+ roll_to_snapshot_created();
+ let mut paged = mine_full_solution().unwrap();
+
+ assert_eq!(crate::Snapshot::<Runtime>::voters(0).unwrap().len(), 12);
+ // ------------------------------------------------^^ valid range is [0..11] in page
+ // 0.
+
+ // Check that there is an index 11 in votes1, and flip to 12. There are only 12
+ // voters, so index 12 is invalid.
+ assert!(
+ paged.solution_pages[0]
+ .votes1
+ .iter_mut()
+ .filter(|(v, _)| *v == VoterIndex::from(11u32))
+ .map(|(v, _)| *v = 12)
+ .count() > 0
+ );
+ assert_noop!(
+ VerifierPallet::feasibility_check_page_inner(
+ paged.solution_pages[0].clone(),
+ 0
+ ),
+ FeasibilityError::NposElection(sp_npos_elections::Error::SolutionInvalidIndex),
+ );
+ })
+ }
+
+ #[test]
+ fn voter_must_have_same_targets_as_snapshot() {
+ ExtBuilder::verifier()
+ .pages(1)
+ .voter_per_page(Bounded::max_value())
+ .desired_targets(2)
+ .build_and_execute(|| {
+ roll_to_snapshot_created();
+ let mut paged = mine_full_solution().unwrap();
+
+ // First, check that voter at index 11 (40) actually voted for 3 (40) -- this is
+ // self vote. Then, change the vote to 2 (30).
+ assert_eq!(
+ paged.solution_pages[0]
+ .votes1
+ .iter_mut()
+ .filter(|(v, t)| *v == 11 && *t == 3)
+ .map(|(_, t)| *t = 2)
+ .count(),
+ 1,
+ );
+ assert_noop!(
+ VerifierPallet::feasibility_check_page_inner(
+ paged.solution_pages[0].clone(),
+ 0
+ ),
+ FeasibilityError::InvalidVote,
+ );
+ })
+ }
+
+ #[test]
+ fn heuristic_max_backers_per_winner_per_page() {
+ ExtBuilder::verifier().max_backers_per_winner(2).build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ // these votes are all valid, but some dude has 3 supports in a single page.
+ let solution = solution_from_supports(
+ vec![(40, Support { total: 30, voters: vec![(2, 10), (3, 10), (4, 10)] })],
+ // all these voters are in page of the snapshot, the msp!
+ 2,
+ );
+
+ assert_noop!(
+ VerifierPallet::feasibility_check_page_inner(solution, 2),
+ FeasibilityError::FailedToBoundSupport,
+ );
+ })
+ }
+
+ #[test]
+ fn heuristic_desired_target_check_per_page() {
+ ExtBuilder::verifier().desired_targets(2).build_and_execute(|| {
+ roll_to(25);
+ assert_full_snapshot();
+
+ // all of these votes are valid, but this solution is already presenting 3 winners,
+ // while we just one 2.
+ let solution = solution_from_supports(
+ vec![
+ (10, Support { total: 30, voters: vec![(4, 2)] }),
+ (20, Support { total: 30, voters: vec![(4, 2)] }),
+ (40, Support { total: 30, voters: vec![(4, 6)] }),
+ ],
+ // all these voters are in page 2 of the snapshot, the msp!
+ 2,
+ );
+
+ assert_noop!(
+ VerifierPallet::feasibility_check_page_inner(solution, 2),
+ FeasibilityError::WrongWinnerCount,
+ );
+ })
+ }
+}
+
+mod async_verification {
+ use sp_core::bounded_vec;
+
+ use super::*;
+ // disambiguate event
+ use crate::verifier::Event;
+
+ #[test]
+ fn basic_single_verification_works() {
+ ExtBuilder::verifier().pages(1).build_and_execute(|| {
+ // load a solution after the snapshot has been created.
+ roll_to_snapshot_created();
+
+ let solution = mine_full_solution().unwrap();
+ load_mock_signed_and_start(solution.clone());
+
+ // now let it verify
+ roll_next();
+
+ // It done after just one block.
+ assert_eq!(VerifierPallet::status(), Status::Nothing);
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::<Runtime>::Verified(0, 2),
+ Event::<Runtime>::Queued(solution.score, None)
+ ]
+ );
+ assert_eq!(MockSignedResults::get(), vec![VerificationResult::Queued]);
+ });
+ }
+
+ #[test]
+ fn basic_multi_verification_works() {
+ ExtBuilder::verifier().pages(3).build_and_execute(|| {
+ // load a solution after the snapshot has been created.
+ roll_to_snapshot_created();
+
+ let solution = mine_full_solution().unwrap();
+ // ------------- ^^^^^^^^^^^^
+
+ load_mock_signed_and_start(solution.clone());
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(2));
+ assert_eq!(QueuedSolution::<Runtime>::valid_iter().count(), 0);
+
+ // now let it verify
+ roll_next();
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(1));
+ assert_eq!(verifier_events(), vec![Event::<Runtime>::Verified(2, 2)]);
+ // 1 page verified, stored as invalid.
+ assert_eq!(QueuedSolution::<Runtime>::invalid_iter().count(), 1);
+
+ roll_next();
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(0));
+ assert_eq!(
+ verifier_events(),
+ vec![Event::<Runtime>::Verified(2, 2), Event::<Runtime>::Verified(1, 2),]
+ );
+ // 2 pages verified, stored as invalid.
+ assert_eq!(QueuedSolution::<Runtime>::invalid_iter().count(), 2);
+
+ // nothing is queued yet.
+ assert_eq!(MockSignedResults::get(), vec![]);
+ assert_eq!(QueuedSolution::<Runtime>::valid_iter().count(), 0);
+ assert!(QueuedSolution::<Runtime>::queued_score().is_none());
+
+ // last block.
+ roll_next();
+ assert_eq!(VerifierPallet::status(), Status::Nothing);
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::<Runtime>::Verified(2, 2),
+ Event::<Runtime>::Verified(1, 2),
+ Event::<Runtime>::Verified(0, 2),
+ Event::<Runtime>::Queued(solution.score, None),
+ ]
+ );
+ assert_eq!(MockSignedResults::get(), vec![VerificationResult::Queued]);
+
+ // a solution has been queued
+ assert_eq!(QueuedSolution::<Runtime>::valid_iter().count(), 3);
+ assert!(QueuedSolution::<Runtime>::queued_score().is_some());
+ });
+ }
+
+ #[test]
+ fn basic_multi_verification_partial() {
+ ExtBuilder::verifier().pages(3).build_and_execute(|| {
+ // load a solution after the snapshot has been created.
+ roll_to_snapshot_created();
+
+ let solution = mine_solution(2).unwrap();
+ // -------------------------^^^
+
+ load_mock_signed_and_start(solution.clone());
+
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(2));
+ assert_eq!(QueuedSolution::<Runtime>::valid_iter().count(), 0);
+
+ // now let it verify
+ roll_next();
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(1));
+ assert_eq!(verifier_events(), vec![Event::<Runtime>::Verified(2, 2)]);
+ // 1 page verified, stored as invalid.
+ assert_eq!(QueuedSolution::<Runtime>::invalid_iter().count(), 1);
+
+ roll_next();
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(0));
+ assert_eq!(
+ verifier_events(),
+ vec![Event::<Runtime>::Verified(2, 2), Event::<Runtime>::Verified(1, 2),]
+ );
+ // 2 page verified, stored as invalid.
+ assert_eq!(QueuedSolution::<Runtime>::invalid_iter().count(), 2);
+
+ // nothing is queued yet.
+ assert_eq!(MockSignedResults::get(), vec![]);
+ assert_eq!(QueuedSolution::<Runtime>::valid_iter().count(), 0);
+ assert!(QueuedSolution::<Runtime>::queued_score().is_none());
+
+ roll_next();
+ assert_eq!(VerifierPallet::status(), Status::Nothing);
+
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::<Runtime>::Verified(2, 2),
+ Event::<Runtime>::Verified(1, 2),
+ // this is a partial solution, no one in this page (lsp).
+ Event::<Runtime>::Verified(0, 0),
+ Event::<Runtime>::Queued(solution.score, None),
+ ]
+ );
+
+ // a solution has been queued
+ assert_eq!(MockSignedResults::get(), vec![VerificationResult::Queued]);
+ assert_eq!(QueuedSolution::<Runtime>::valid_iter().count(), 3);
+ assert!(QueuedSolution::<Runtime>::queued_score().is_some());
+
+ // page 0 is empty..
+ assert_eq!(QueuedSolution::<Runtime>::get_valid_page(0).unwrap().len(), 0);
+ // .. the other two are not.
+ assert_eq!(QueuedSolution::<Runtime>::get_valid_page(1).unwrap().len(), 2);
+ assert_eq!(QueuedSolution::<Runtime>::get_valid_page(2).unwrap().len(), 2);
+ });
+ }
+
+ #[test]
+ fn solution_data_provider_failing_initial() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ // not super important, but anyways..
+ roll_to_snapshot_created();
+
+ // The solution data provider is empty.
+ assert_eq!(SignedPhaseSwitch::get(), SignedSwitch::Mock);
+ assert_eq!(MockSignedNextSolution::get(), None);
+
+ // nothing happens..
+ assert_eq!(VerifierPallet::status(), Status::Nothing);
+ assert_ok!(<VerifierPallet as AsynchronousVerifier>::start());
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(2));
+
+ roll_next();
+
+ // we instantly stop.
+ assert_eq!(verifier_events(), vec![Event::<Runtime>::VerificationDataUnavailable]);
+ assert_eq!(VerifierPallet::status(), Status::Nothing);
+ assert!(QueuedSolution::<Runtime>::invalid_iter().count().is_zero());
+ assert!(QueuedSolution::<Runtime>::backing_iter().count().is_zero());
+
+ // and we report invalid back.
+ assert_eq!(MockSignedResults::get(), vec![VerificationResult::DataUnavailable]);
+ });
+ }
+
+ #[test]
+ fn solution_data_provider_failing_midway() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ let solution = mine_full_solution().unwrap();
+ load_mock_signed_and_start(solution.clone());
+
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(2));
+
+ // now let it verify. first one goes fine.
+ roll_next();
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(1));
+ assert_eq!(verifier_events(), vec![Event::<Runtime>::Verified(2, 2)]);
+ assert_eq!(MockSignedResults::get(), vec![]);
+
+ // 1 page verified, stored as invalid.
+ assert_eq!(QueuedSolution::<Runtime>::invalid_iter().count(), 1);
+ assert_eq!(QueuedSolution::<Runtime>::backing_iter().count(), 1);
+ assert_eq!(QueuedSolution::<Runtime>::valid_iter().count(), 0);
+
+ // suddenly clear this guy.
+ MockSignedNextSolution::set(None);
+ MockSignedNextScore::set(None);
+
+ roll_next();
+
+ // we instantly stop.
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::<Runtime>::Verified(2, 2),
+ Event::<Runtime>::VerificationDataUnavailable
+ ]
+ );
+ assert_eq!(VerifierPallet::status(), Status::Nothing);
+ assert_eq!(QueuedSolution::<Runtime>::invalid_iter().count(), 0);
+ assert_eq!(QueuedSolution::<Runtime>::valid_iter().count(), 0);
+ assert_eq!(QueuedSolution::<Runtime>::backing_iter().count(), 0);
+
+ // and we report invalid back.
+ assert_eq!(MockSignedResults::get(), vec![VerificationResult::DataUnavailable]);
+ })
+ }
+
+ #[test]
+ fn rejects_new_verification_via_start_if_ongoing() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ let solution = mine_full_solution().unwrap();
+ load_mock_signed_and_start(solution.clone());
+
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(2));
+
+ // nada
+ assert_noop!(<VerifierPallet as AsynchronousVerifier>::start(), "verification ongoing");
+
+ // now let it verify. first one goes fine.
+ roll_next();
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(1));
+ assert_eq!(verifier_events(), vec![Event::<Runtime>::Verified(2, 2)]);
+ assert_eq!(MockSignedResults::get(), vec![]);
+
+ // retry, still nada.
+ assert_noop!(<VerifierPallet as AsynchronousVerifier>::start(), "verification ongoing");
+ })
+ }
+
+ #[test]
+ fn stop_clears_everything() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ let solution = mine_full_solution().unwrap();
+ load_mock_signed_and_start(solution.clone());
+
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(2));
+
+ roll_next();
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(1));
+ assert_eq!(verifier_events(), vec![Event::<Runtime>::Verified(2, 2)]);
+
+ roll_next();
+ assert_eq!(VerifierPallet::status(), Status::Ongoing(0));
+ assert_eq!(
+ verifier_events(),
+ vec![Event::<Runtime>::Verified(2, 2), Event::<Runtime>::Verified(1, 2)]
+ );
+
+ // now suddenly, we stop
+ <VerifierPallet as AsynchronousVerifier>::stop();
+ assert_eq!(VerifierPallet::status(), Status::Nothing);
+
+ // everything is cleared.
+ assert_eq!(QueuedSolution::<Runtime>::invalid_iter().count(), 0);
+ assert_eq!(QueuedSolution::<Runtime>::valid_iter().count(), 0);
+ assert_eq!(QueuedSolution::<Runtime>::backing_iter().count(), 0);
+
+ // and we report invalid back that something was rejected.
+ assert_eq!(MockSignedResults::get(), vec![VerificationResult::Rejected]);
+ })
+ }
+
+ #[test]
+ fn weak_valid_solution_is_insta_rejected() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ let paged = mine_full_solution().unwrap();
+ load_mock_signed_and_start(paged.clone());
+ let _ = roll_to_full_verification();
+
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::Verified(2, 2),
+ Event::Verified(1, 2),
+ Event::Verified(0, 2),
+ Event::Queued(paged.score, None)
+ ]
+ );
+ assert_eq!(MockSignedResults::get(), vec![VerificationResult::Queued]);
+
+ // good boi, but you are too weak. This solution also does not have the full pages,
+ // which is also fine. See `basic_multi_verification_partial`.
+ let weak_page_partial =
+ solution_from_supports(vec![(10, Support { total: 10, voters: vec![(1, 10)] })], 2);
+ let weak_paged = PagedRawSolution::<Runtime> {
+ solution_pages: bounded_vec![weak_page_partial],
+ score: ElectionScore { minimal_stake: 10, sum_stake: 10, sum_stake_squared: 100 },
+ ..Default::default()
+ };
+
+ load_mock_signed_and_start(weak_paged.clone());
+ // this is insta-rejected, no need to proceed any more blocks.
+
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::Verified(2, 2),
+ Event::Verified(1, 2),
+ Event::Verified(0, 2),
+ Event::Queued(paged.score, None),
+ Event::VerificationFailed(2, FeasibilityError::ScoreTooLow)
+ ]
+ );
+
+ assert_eq!(
+ MockSignedResults::get(),
+ vec![VerificationResult::Queued, VerificationResult::Rejected]
+ );
+ })
+ }
+
+ #[test]
+ fn better_valid_solution_replaces() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ // a weak one, which we will still accept.
+ let weak_page_partial = solution_from_supports(
+ vec![
+ (10, Support { total: 10, voters: vec![(1, 10)] }),
+ (20, Support { total: 10, voters: vec![(4, 10)] }),
+ ],
+ 2,
+ );
+ let weak_paged = PagedRawSolution::<Runtime> {
+ solution_pages: bounded_vec![weak_page_partial],
+ score: ElectionScore { minimal_stake: 10, sum_stake: 20, sum_stake_squared: 200 },
+ ..Default::default()
+ };
+
+ load_mock_signed_and_start(weak_paged.clone());
+ let _ = roll_to_full_verification();
+
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::Verified(2, 2),
+ Event::Verified(1, 0), // note: partial solution!
+ Event::Verified(0, 0), // note: partial solution!
+ Event::Queued(weak_paged.score, None)
+ ]
+ );
+ assert_eq!(MockSignedResults::get(), vec![VerificationResult::Queued]);
+
+ let paged = mine_full_solution().unwrap();
+ load_mock_signed_and_start(paged.clone());
+ let _ = roll_to_full_verification();
+
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::Verified(2, 2),
+ Event::Verified(1, 0),
+ Event::Verified(0, 0),
+ Event::Queued(weak_paged.score, None),
+ Event::Verified(2, 2),
+ Event::Verified(1, 2),
+ Event::Verified(0, 2),
+ Event::Queued(paged.score, Some(weak_paged.score))
+ ]
+ );
+ assert_eq!(
+ MockSignedResults::get(),
+ vec![VerificationResult::Queued, VerificationResult::Queued]
+ );
+ })
+ }
+
+ #[test]
+ fn invalid_solution_bad_score() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+ let mut paged = mine_full_solution().unwrap();
+
+ // just tweak score.
+ paged.score.minimal_stake += 1;
+ assert!(<VerifierPallet as Verifier>::queued_score().is_none());
+
+ load_mock_signed_and_start(paged);
+ roll_to_full_verification();
+
+ // nothing is verified.
+ assert!(<VerifierPallet as Verifier>::queued_score().is_none());
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::<Runtime>::Verified(2, 2),
+ Event::<Runtime>::Verified(1, 2),
+ Event::<Runtime>::Verified(0, 2),
+ Event::<Runtime>::VerificationFailed(0, FeasibilityError::InvalidScore)
+ ]
+ );
+
+ assert_eq!(MockSignedResults::get(), vec![VerificationResult::Rejected]);
+ })
+ }
+
+ #[test]
+ fn invalid_solution_bad_minimum_score() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+ let paged = mine_full_solution().unwrap();
+
+ // our minimum score is our score, just a bit better.
+ let mut better_score = paged.score;
+ better_score.minimal_stake += 1;
+ <VerifierPallet as Verifier>::set_minimum_score(better_score);
+
+ load_mock_signed_and_start(paged);
+
+ // note that we don't need to call to `roll_to_full_verification`, since this solution
+ // is pretty much insta-rejected;
+ assert_eq!(
+ verifier_events(),
+ vec![Event::<Runtime>::VerificationFailed(2, FeasibilityError::ScoreTooLow)]
+ );
+
+ // nothing is verified..
+ assert!(<VerifierPallet as Verifier>::queued_score().is_none());
+
+ // result is reported back.
+ assert_eq!(MockSignedResults::get(), vec![VerificationResult::Rejected]);
+ })
+ }
+
+ #[test]
+ fn invalid_solution_bad_desired_targets() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+ assert_eq!(crate::Snapshot::<Runtime>::desired_targets().unwrap(), 2);
+ let paged = mine_full_solution().unwrap();
+
+ // tweak this, for whatever reason.
+ crate::Snapshot::<Runtime>::set_desired_targets(3);
+
+ load_mock_signed_and_start(paged);
+ roll_to_full_verification();
+
+ // we detect this only in the last page.
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::Verified(2, 2),
+ Event::Verified(1, 2),
+ Event::Verified(0, 2),
+ Event::VerificationFailed(0, FeasibilityError::WrongWinnerCount)
+ ]
+ );
+
+ // nothing is verified..
+ assert!(<VerifierPallet as Verifier>::queued_score().is_none());
+ // result is reported back.
+ assert_eq!(MockSignedResults::get(), vec![VerificationResult::Rejected]);
+ })
+ }
+
+ #[test]
+ fn invalid_solution_bad_bounds_per_page() {
+ ExtBuilder::verifier()
+ .desired_targets(1)
+ .max_backers_per_winner(1) // in each page we allow 1 baker to be presented.
+ .max_backers_per_winner_final(12)
+ .build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ // This is a sneaky custom solution where it will fail in the second page.
+ let page0 = solution_from_supports(
+ vec![(10, Support { total: 10, voters: vec![(1, 10)] })],
+ 2,
+ );
+ let page1 = solution_from_supports(
+ vec![(10, Support { total: 20, voters: vec![(5, 10), (8, 10)] })],
+ 1,
+ );
+ let page2 = solution_from_supports(
+ vec![(10, Support { total: 10, voters: vec![(10, 10)] })],
+ 0,
+ );
+ let paged = PagedRawSolution {
+ solution_pages: bounded_vec![page0, page1, page2],
+ score: Default::default(), // score is never checked, so nada
+ ..Default::default()
+ };
+
+ load_mock_signed_and_start(paged);
+ roll_to_full_verification();
+
+ // we detect the bound issue in page 2.
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::Verified(2, 1),
+ Event::VerificationFailed(1, FeasibilityError::FailedToBoundSupport)
+ ]
+ );
+
+ // our state is fully cleaned.
+ QueuedSolution::<Runtime>::assert_killed();
+ assert_eq!(StatusStorage::<Runtime>::get(), Status::Nothing);
+ // nothing is verified..
+ assert!(<VerifierPallet as Verifier>::queued_score().is_none());
+ // result is reported back.
+ assert_eq!(MockSignedResults::get(), vec![VerificationResult::Rejected]);
+ })
+ }
+
+ #[test]
+ fn invalid_solution_bad_bounds_final() {
+ ExtBuilder::verifier()
+ .desired_targets(1)
+ .max_backers_per_winner_final(2)
+ .build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ // This is a sneaky custom solution where in each page 10 has 1 backers, so only in
+ // the last page we can catch the mfer.
+ let page0 = solution_from_supports(
+ vec![(10, Support { total: 10, voters: vec![(1, 10)] })],
+ 2,
+ );
+ let page1 = solution_from_supports(
+ vec![(10, Support { total: 10, voters: vec![(5, 10)] })],
+ 1,
+ );
+ let page2 = solution_from_supports(
+ vec![(10, Support { total: 10, voters: vec![(10, 10)] })],
+ 0,
+ );
+ let paged = PagedRawSolution {
+ solution_pages: bounded_vec![page0, page1, page2],
+ score: ElectionScore {
+ minimal_stake: 30,
+ sum_stake: 30,
+ sum_stake_squared: 900,
+ },
+ ..Default::default()
+ };
+
+ load_mock_signed_and_start(paged);
+ roll_to_full_verification();
+
+ // we detect this only in the last page.
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::Verified(2, 1),
+ Event::Verified(1, 1),
+ Event::Verified(0, 1),
+ Event::VerificationFailed(0, FeasibilityError::FailedToBoundSupport)
+ ]
+ );
+
+ // our state is fully cleaned.
+ QueuedSolution::<Runtime>::assert_killed();
+ assert_eq!(StatusStorage::<Runtime>::get(), Status::Nothing);
+
+ // nothing is verified..
+ assert!(<VerifierPallet as Verifier>::queued_score().is_none());
+ // result is reported back.
+ assert_eq!(MockSignedResults::get(), vec![VerificationResult::Rejected]);
+ })
+ }
+
+ #[test]
+ fn invalid_solution_does_not_alter_queue() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+ let mut paged = mine_full_solution().unwrap();
+ let correct_score = paged.score;
+
+ assert!(<VerifierPallet as Verifier>::queued_score().is_none());
+
+ load_mock_signed_and_start(paged.clone());
+ roll_to_full_verification();
+
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), Some(correct_score));
+ assert!(QueuedSolution::<Runtime>::invalid_iter().count().is_zero());
+ assert!(QueuedSolution::<Runtime>::backing_iter().count().is_zero());
+
+ // just tweak score. Note that we tweak for a higher score, so the verifier will accept
+ // it.
+ paged.score.minimal_stake += 1;
+ load_mock_signed_and_start(paged.clone());
+ roll_to_full_verification();
+
+ // nothing is verified.
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), Some(correct_score));
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::<Runtime>::Verified(2, 2),
+ Event::<Runtime>::Verified(1, 2),
+ Event::<Runtime>::Verified(0, 2),
+ Event::<Runtime>::Queued(correct_score, None),
+ Event::<Runtime>::Verified(2, 2),
+ Event::<Runtime>::Verified(1, 2),
+ Event::<Runtime>::Verified(0, 2),
+ Event::<Runtime>::VerificationFailed(0, FeasibilityError::InvalidScore),
+ ]
+ );
+
+ // the verification results.
+ assert_eq!(
+ MockSignedResults::get(),
+ vec![VerificationResult::Queued, VerificationResult::Rejected]
+ );
+
+ // and the queue is still in good shape.
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), Some(correct_score));
+ assert!(QueuedSolution::<Runtime>::invalid_iter().count().is_zero());
+ assert!(QueuedSolution::<Runtime>::backing_iter().count().is_zero());
+ })
+ }
+}
+
+mod sync_verification {
+ use frame_election_provider_support::Support;
+ use sp_core::bounded_vec;
+ use sp_npos_elections::ElectionScore;
+ use sp_runtime::Perbill;
+
+ use crate::{
+ mock::{
+ fake_solution, mine_solution, roll_to_snapshot_created, solution_from_supports,
+ verifier_events, ExtBuilder, MaxBackersPerWinner, MaxWinnersPerPage, MultiBlock,
+ Runtime, VerifierPallet,
+ },
+ verifier::{Event, FeasibilityError, Verifier},
+ PagedRawSolution, Snapshot,
+ };
+
+ #[test]
+ fn basic_sync_verification_works() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+ let single_page = mine_solution(1).unwrap();
+
+ assert_eq!(verifier_events(), vec![]);
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), None);
+
+ let _ = <VerifierPallet as Verifier>::verify_synchronous(
+ single_page.solution_pages.first().cloned().unwrap(),
+ single_page.score,
+ MultiBlock::msp(),
+ )
+ .unwrap();
+
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::<Runtime>::Verified(2, 2),
+ Event::<Runtime>::Queued(single_page.score, None)
+ ]
+ );
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), Some(single_page.score));
+ })
+ }
+
+ #[test]
+ fn winner_count_more() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+ let single_page = mine_solution(1).unwrap();
+
+ // change the snapshot, as if the desired targets is now 1. This solution is then valid,
+ // but has too many.
+ Snapshot::<Runtime>::set_desired_targets(1);
+
+ assert_eq!(verifier_events(), vec![]);
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), None);
+
+ // note: this is NOT a storage_noop! because we do emit events.
+ assert_eq!(
+ <VerifierPallet as Verifier>::verify_synchronous(
+ single_page.solution_pages.first().cloned().unwrap(),
+ single_page.score,
+ MultiBlock::msp(),
+ )
+ .unwrap_err(),
+ FeasibilityError::WrongWinnerCount
+ );
+
+ assert_eq!(
+ verifier_events(),
+ vec![Event::<Runtime>::VerificationFailed(2, FeasibilityError::WrongWinnerCount)]
+ );
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), None);
+ })
+ }
+
+ #[test]
+ fn winner_count_less() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+ let single_page = mine_solution(1).unwrap();
+
+ assert_eq!(verifier_events(), vec![]);
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), None);
+
+ // Valid solution, but has now too few.
+ Snapshot::<Runtime>::set_desired_targets(3);
+
+ assert_eq!(
+ <VerifierPallet as Verifier>::verify_synchronous(
+ single_page.solution_pages.first().cloned().unwrap(),
+ single_page.score,
+ MultiBlock::msp(),
+ )
+ .unwrap_err(),
+ FeasibilityError::WrongWinnerCount
+ );
+
+ assert_eq!(
+ verifier_events(),
+ vec![Event::<Runtime>::VerificationFailed(2, FeasibilityError::WrongWinnerCount)]
+ );
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), None);
+ })
+ }
+
+ #[test]
+ fn incorrect_score_is_rejected() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ let single_page = mine_solution(1).unwrap();
+ let mut score_incorrect = single_page.score;
+ score_incorrect.minimal_stake += 1;
+
+ assert_eq!(
+ <VerifierPallet as Verifier>::verify_synchronous(
+ single_page.solution_pages.first().cloned().unwrap(),
+ score_incorrect,
+ MultiBlock::msp(),
+ )
+ .unwrap_err(),
+ FeasibilityError::InvalidScore
+ );
+
+ assert_eq!(
+ verifier_events(),
+ vec![Event::<Runtime>::VerificationFailed(2, FeasibilityError::InvalidScore),]
+ );
+ })
+ }
+
+ #[test]
+ fn minimum_untrusted_score_is_rejected() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ let single_page = mine_solution(1).unwrap();
+
+ // raise the bar such that we don't meet it.
+ let mut unattainable_score = single_page.score;
+ unattainable_score.minimal_stake += 1;
+
+ <VerifierPallet as Verifier>::set_minimum_score(unattainable_score);
+
+ assert_eq!(
+ <VerifierPallet as Verifier>::verify_synchronous(
+ single_page.solution_pages.first().cloned().unwrap(),
+ single_page.score,
+ MultiBlock::msp(),
+ )
+ .unwrap_err(),
+ FeasibilityError::ScoreTooLow
+ );
+
+ assert_eq!(
+ verifier_events(),
+ vec![Event::<Runtime>::VerificationFailed(2, FeasibilityError::ScoreTooLow)]
+ );
+ })
+ }
+
+ #[test]
+ fn bad_bounds_rejected() {
+ // MaxBackersPerWinner.
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ let single_page = mine_solution(1).unwrap();
+ // note: change this after the miner is done, otherwise it is smart enough to trim.
+ MaxBackersPerWinner::set(1);
+
+ assert_eq!(
+ <VerifierPallet as Verifier>::verify_synchronous(
+ single_page.solution_pages.first().cloned().unwrap(),
+ single_page.score,
+ MultiBlock::msp(),
+ )
+ .unwrap_err(),
+ FeasibilityError::FailedToBoundSupport
+ );
+
+ assert_eq!(
+ verifier_events(),
+ vec![Event::<Runtime>::VerificationFailed(
+ 2,
+ FeasibilityError::FailedToBoundSupport
+ )]
+ );
+ });
+
+ // MaxWinnersPerPage.
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ let single_page = mine_solution(1).unwrap();
+ // note: the miner does feasibility internally, change this parameter afterwards.
+ MaxWinnersPerPage::set(1);
+
+ assert_eq!(
+ <VerifierPallet as Verifier>::verify_synchronous(
+ single_page.solution_pages.first().cloned().unwrap(),
+ single_page.score,
+ MultiBlock::msp(),
+ )
+ .unwrap_err(),
+ FeasibilityError::FailedToBoundSupport
+ );
+
+ assert_eq!(
+ verifier_events(),
+ vec![Event::<Runtime>::VerificationFailed(
+ 2,
+ FeasibilityError::FailedToBoundSupport
+ )]
+ );
+ });
+ }
+
+ #[test]
+ fn solution_improvement_threshold_respected() {
+ ExtBuilder::verifier()
+ .solution_improvement_threshold(Perbill::from_percent(10))
+ .build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ // submit something good.
+ let single_page = mine_solution(1).unwrap();
+ let _ = <VerifierPallet as Verifier>::verify_synchronous(
+ single_page.solution_pages.first().cloned().unwrap(),
+ single_page.score,
+ MultiBlock::msp(),
+ )
+ .unwrap();
+
+ // the slightly better solution need not even be correct. We improve it by 5%, but
+ // we need 10%.
+ let mut better_score = single_page.score;
+ let improvement = Perbill::from_percent(5) * better_score.minimal_stake;
+ better_score.minimal_stake += improvement;
+ let slightly_better = fake_solution(better_score);
+
+ assert_eq!(
+ <VerifierPallet as Verifier>::verify_synchronous(
+ slightly_better.solution_pages.first().cloned().unwrap(),
+ slightly_better.score,
+ MultiBlock::msp(),
+ )
+ .unwrap_err(),
+ FeasibilityError::ScoreTooLow
+ );
+ });
+ }
+
+ #[test]
+ fn weak_score_is_insta_rejected() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ // queue something useful.
+ let single_page = mine_solution(1).unwrap();
+ let _ = <VerifierPallet as Verifier>::verify_synchronous(
+ single_page.solution_pages.first().cloned().unwrap(),
+ single_page.score,
+ MultiBlock::msp(),
+ )
+ .unwrap();
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), Some(single_page.score));
+
+ // now try and submit that's really weak. Doesn't even need to be valid, since the score
+ // is checked first.
+ let mut bad_score = single_page.score;
+ bad_score.minimal_stake -= 1;
+ let weak = fake_solution(bad_score);
+
+ assert_eq!(
+ <VerifierPallet as Verifier>::verify_synchronous(
+ weak.solution_pages.first().cloned().unwrap(),
+ weak.score,
+ MultiBlock::msp(),
+ )
+ .unwrap_err(),
+ FeasibilityError::ScoreTooLow
+ );
+
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::<Runtime>::Verified(2, 2),
+ Event::<Runtime>::Queued(single_page.score, None),
+ Event::<Runtime>::VerificationFailed(2, FeasibilityError::ScoreTooLow),
+ ]
+ );
+ })
+ }
+
+ #[test]
+ fn good_solution_replaces() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ let weak_solution = solution_from_supports(
+ vec![
+ (10, Support { total: 10, voters: vec![(1, 10)] }),
+ (20, Support { total: 10, voters: vec![(4, 10)] }),
+ ],
+ 2,
+ );
+
+ let weak_paged = PagedRawSolution::<Runtime> {
+ solution_pages: bounded_vec![weak_solution],
+ score: ElectionScore { minimal_stake: 10, sum_stake: 20, sum_stake_squared: 200 },
+ ..Default::default()
+ };
+
+ let _ = <VerifierPallet as Verifier>::verify_synchronous(
+ weak_paged.solution_pages.first().cloned().unwrap(),
+ weak_paged.score,
+ MultiBlock::msp(),
+ )
+ .unwrap();
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), Some(weak_paged.score));
+
+ // now get a better solution.
+ let better = mine_solution(1).unwrap();
+
+ let _ = <VerifierPallet as Verifier>::verify_synchronous(
+ better.solution_pages.first().cloned().unwrap(),
+ better.score,
+ MultiBlock::msp(),
+ )
+ .unwrap();
+
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), Some(better.score));
+
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::<Runtime>::Verified(2, 2),
+ Event::<Runtime>::Queued(weak_paged.score, None),
+ Event::<Runtime>::Verified(2, 2),
+ Event::<Runtime>::Queued(better.score, Some(weak_paged.score)),
+ ]
+ );
+ })
+ }
+
+ #[test]
+ fn weak_valid_is_discarded() {
+ ExtBuilder::verifier().build_and_execute(|| {
+ roll_to_snapshot_created();
+
+ // first, submit something good
+ let better = mine_solution(1).unwrap();
+ let _ = <VerifierPallet as Verifier>::verify_synchronous(
+ better.solution_pages.first().cloned().unwrap(),
+ better.score,
+ MultiBlock::msp(),
+ )
+ .unwrap();
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), Some(better.score));
+
+ // then try with something weaker.
+ let weak_solution = solution_from_supports(
+ vec![
+ (10, Support { total: 10, voters: vec![(1, 10)] }),
+ (20, Support { total: 10, voters: vec![(4, 10)] }),
+ ],
+ 2,
+ );
+ let weak_paged = PagedRawSolution::<Runtime> {
+ solution_pages: bounded_vec![weak_solution],
+ score: ElectionScore { minimal_stake: 10, sum_stake: 20, sum_stake_squared: 200 },
+ ..Default::default()
+ };
+
+ assert_eq!(
+ <VerifierPallet as Verifier>::verify_synchronous(
+ weak_paged.solution_pages.first().cloned().unwrap(),
+ weak_paged.score,
+ MultiBlock::msp(),
+ )
+ .unwrap_err(),
+ FeasibilityError::ScoreTooLow
+ );
+
+ // queued solution has not changed.
+ assert_eq!(<VerifierPallet as Verifier>::queued_score(), Some(better.score));
+
+ assert_eq!(
+ verifier_events(),
+ vec![
+ Event::<Runtime>::Verified(2, 2),
+ Event::<Runtime>::Queued(better.score, None),
+ Event::<Runtime>::VerificationFailed(2, FeasibilityError::ScoreTooLow),
+ ]
+ );
+ })
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/weights/measured/mod.rs b/substrate/frame/election-provider-multi-block/src/weights/measured/mod.rs
new file mode 100644
index 00000000000..3050fc7e7f1
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/weights/measured/mod.rs
@@ -0,0 +1,21 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+pub mod pallet_election_provider_multi_block;
+pub mod pallet_election_provider_multi_block_signed;
+pub mod pallet_election_provider_multi_block_unsigned;
+pub mod pallet_election_provider_multi_block_verifier;
diff --git a/substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block.rs b/substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block.rs
new file mode 100644
index 00000000000..8e0d9cf1d16
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block.rs
@@ -0,0 +1,364 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Autogenerated weights for `pallet_election_provider_multi_block`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 32.0.0
+//! DATE: 2025-02-13, STEPS: `2`, REPEAT: `3`, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! WORST CASE MAP SIZE: `1000000`
+//! HOSTNAME: `toaster1`, CPU: `AMD Ryzen Threadripper 7980X 64-Cores`
+//! WASM-EXECUTION: `Compiled`, CHAIN: `Some("dev")`, DB CACHE: `1024`
+
+// Executed Command:
+// target/release/substrate-node
+// benchmark
+// pallet
+// --chain
+// dev
+// --pallet
+// pallet_election_provider_multi_block
+// --extrinsic
+// all
+// --steps
+// 2
+// --repeat
+// 3
+// --template
+// substrate/.maintain/frame-weight-template.hbs
+// --heap-pages
+// 65000
+// --default-pov-mode
+// measured
+// --output
+// ../measured
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+#![allow(missing_docs)]
+#![allow(dead_code)]
+
+use frame_support::{traits::Get, weights::{Weight, constants::RocksDbWeight}};
+use core::marker::PhantomData;
+
+/// Weight functions needed for `pallet_election_provider_multi_block`.
+pub trait WeightInfo {
+ fn on_initialize_nothing() -> Weight;
+ fn on_initialize_into_snapshot_msp() -> Weight;
+ fn on_initialize_into_snapshot_rest() -> Weight;
+ fn on_initialize_into_signed() -> Weight;
+ fn on_initialize_into_signed_validation() -> Weight;
+ fn on_initialize_into_unsigned() -> Weight;
+ fn manage() -> Weight;
+}
+
+/// Weights for `pallet_election_provider_multi_block` using the Substrate node and recommended hardware.
+pub struct SubstrateWeight<T>(PhantomData<T>);
+impl<T: frame_system::Config> WeightInfo for SubstrateWeight<T> {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ fn on_initialize_nothing() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `156`
+ // Estimated: `1641`
+ // Minimum execution time: 9_254_000 picoseconds.
+ Weight::from_parts(10_145_000, 1641)
+ .saturating_add(T::DbWeight::get().reads(2_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `Staking::ValidatorCount` (r:1 w:0)
+ /// Proof: `Staking::ValidatorCount` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `Staking::CounterForValidators` (r:1 w:0)
+ /// Proof: `Staking::CounterForValidators` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `Staking::Validators` (r:1002 w:0)
+ /// Proof: `Staking::Validators` (`max_values`: None, `max_size`: Some(45), added: 2520, mode: `Measured`)
+ /// Storage: `Staking::VoterSnapshotStatus` (r:1 w:1)
+ /// Proof: `Staking::VoterSnapshotStatus` (`max_values`: Some(1), `max_size`: Some(33), added: 528, mode: `Measured`)
+ /// Storage: `VoterList::CounterForListNodes` (r:1 w:0)
+ /// Proof: `VoterList::CounterForListNodes` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `VoterList::ListBags` (r:200 w:0)
+ /// Proof: `VoterList::ListBags` (`max_values`: None, `max_size`: Some(82), added: 2557, mode: `Measured`)
+ /// Storage: `VoterList::ListNodes` (r:26001 w:0)
+ /// Proof: `VoterList::ListNodes` (`max_values`: None, `max_size`: Some(154), added: 2629, mode: `Measured`)
+ /// Storage: `Staking::Bonded` (r:703 w:0)
+ /// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `Measured`)
+ /// Storage: `Staking::Ledger` (r:703 w:0)
+ /// Proof: `Staking::Ledger` (`max_values`: None, `max_size`: Some(1091), added: 3566, mode: `Measured`)
+ /// Storage: `Staking::Nominators` (r:703 w:0)
+ /// Proof: `Staking::Nominators` (`max_values`: None, `max_size`: Some(558), added: 3033, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `Measured`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:0 w:1)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedTargetSnapshotHash` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedTargetSnapshotHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshotHash` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshotHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `Measured`)
+ /// Storage: `Staking::MinimumActiveStake` (r:0 w:1)
+ /// Proof: `Staking::MinimumActiveStake` (`max_values`: Some(1), `max_size`: Some(16), added: 511, mode: `Measured`)
+ fn on_initialize_into_snapshot_msp() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `5151586`
+ // Estimated: `69505051`
+ // Minimum execution time: 201_905_061_000 picoseconds.
+ Weight::from_parts(203_148_720_000, 69505051)
+ .saturating_add(T::DbWeight::get().reads(29318_u64))
+ .saturating_add(T::DbWeight::get().writes(8_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `Staking::VoterSnapshotStatus` (r:1 w:1)
+ /// Proof: `Staking::VoterSnapshotStatus` (`max_values`: Some(1), `max_size`: Some(33), added: 528, mode: `Measured`)
+ /// Storage: `VoterList::CounterForListNodes` (r:1 w:0)
+ /// Proof: `VoterList::CounterForListNodes` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `VoterList::ListNodes` (r:26001 w:0)
+ /// Proof: `VoterList::ListNodes` (`max_values`: None, `max_size`: Some(154), added: 2629, mode: `Measured`)
+ /// Storage: `Staking::Bonded` (r:704 w:0)
+ /// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `Measured`)
+ /// Storage: `Staking::Ledger` (r:704 w:0)
+ /// Proof: `Staking::Ledger` (`max_values`: None, `max_size`: Some(1091), added: 3566, mode: `Measured`)
+ /// Storage: `Staking::Nominators` (r:703 w:0)
+ /// Proof: `Staking::Nominators` (`max_values`: None, `max_size`: Some(558), added: 3033, mode: `Measured`)
+ /// Storage: `VoterList::ListBags` (r:200 w:0)
+ /// Proof: `VoterList::ListBags` (`max_values`: None, `max_size`: Some(82), added: 2557, mode: `Measured`)
+ /// Storage: `Staking::Validators` (r:165 w:0)
+ /// Proof: `Staking::Validators` (`max_values`: None, `max_size`: Some(45), added: 2520, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshotHash` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshotHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `Measured`)
+ /// Storage: `Staking::MinimumActiveStake` (r:0 w:1)
+ /// Proof: `Staking::MinimumActiveStake` (`max_values`: Some(1), `max_size`: Some(16), added: 511, mode: `Measured`)
+ fn on_initialize_into_snapshot_rest() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `5329975`
+ // Estimated: `69683440`
+ // Minimum execution time: 195_257_628_000 picoseconds.
+ Weight::from_parts(195_317_909_000, 69683440)
+ .saturating_add(T::DbWeight::get().reads(28481_u64))
+ .saturating_add(T::DbWeight::get().writes(5_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ fn on_initialize_into_signed() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `340`
+ // Estimated: `1825`
+ // Minimum execution time: 649_767_000 picoseconds.
+ Weight::from_parts(764_370_000, 1825)
+ .saturating_add(T::DbWeight::get().reads(2_u64))
+ .saturating_add(T::DbWeight::get().writes(1_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:0)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ fn on_initialize_into_signed_validation() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `340`
+ // Estimated: `3805`
+ // Minimum execution time: 657_218_000 picoseconds.
+ Weight::from_parts(674_575_000, 3805)
+ .saturating_add(T::DbWeight::get().reads(4_u64))
+ .saturating_add(T::DbWeight::get().writes(1_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `Measured`)
+ fn on_initialize_into_unsigned() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `340`
+ // Estimated: `1825`
+ // Minimum execution time: 866_827_000 picoseconds.
+ Weight::from_parts(890_863_000, 1825)
+ .saturating_add(T::DbWeight::get().reads(3_u64))
+ .saturating_add(T::DbWeight::get().writes(2_u64))
+ }
+ fn manage() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `0`
+ // Estimated: `0`
+ // Minimum execution time: 140_000 picoseconds.
+ Weight::from_parts(170_000, 0)
+ }
+}
+
+// For backwards compatibility and tests.
+impl WeightInfo for () {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ fn on_initialize_nothing() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `156`
+ // Estimated: `1641`
+ // Minimum execution time: 9_254_000 picoseconds.
+ Weight::from_parts(10_145_000, 1641)
+ .saturating_add(RocksDbWeight::get().reads(2_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `Staking::ValidatorCount` (r:1 w:0)
+ /// Proof: `Staking::ValidatorCount` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `Staking::CounterForValidators` (r:1 w:0)
+ /// Proof: `Staking::CounterForValidators` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `Staking::Validators` (r:1002 w:0)
+ /// Proof: `Staking::Validators` (`max_values`: None, `max_size`: Some(45), added: 2520, mode: `Measured`)
+ /// Storage: `Staking::VoterSnapshotStatus` (r:1 w:1)
+ /// Proof: `Staking::VoterSnapshotStatus` (`max_values`: Some(1), `max_size`: Some(33), added: 528, mode: `Measured`)
+ /// Storage: `VoterList::CounterForListNodes` (r:1 w:0)
+ /// Proof: `VoterList::CounterForListNodes` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `VoterList::ListBags` (r:200 w:0)
+ /// Proof: `VoterList::ListBags` (`max_values`: None, `max_size`: Some(82), added: 2557, mode: `Measured`)
+ /// Storage: `VoterList::ListNodes` (r:26001 w:0)
+ /// Proof: `VoterList::ListNodes` (`max_values`: None, `max_size`: Some(154), added: 2629, mode: `Measured`)
+ /// Storage: `Staking::Bonded` (r:703 w:0)
+ /// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `Measured`)
+ /// Storage: `Staking::Ledger` (r:703 w:0)
+ /// Proof: `Staking::Ledger` (`max_values`: None, `max_size`: Some(1091), added: 3566, mode: `Measured`)
+ /// Storage: `Staking::Nominators` (r:703 w:0)
+ /// Proof: `Staking::Nominators` (`max_values`: None, `max_size`: Some(558), added: 3033, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `Measured`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:0 w:1)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedTargetSnapshotHash` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedTargetSnapshotHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshotHash` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshotHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `Measured`)
+ /// Storage: `Staking::MinimumActiveStake` (r:0 w:1)
+ /// Proof: `Staking::MinimumActiveStake` (`max_values`: Some(1), `max_size`: Some(16), added: 511, mode: `Measured`)
+ fn on_initialize_into_snapshot_msp() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `5151586`
+ // Estimated: `69505051`
+ // Minimum execution time: 201_905_061_000 picoseconds.
+ Weight::from_parts(203_148_720_000, 69505051)
+ .saturating_add(RocksDbWeight::get().reads(29318_u64))
+ .saturating_add(RocksDbWeight::get().writes(8_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `Staking::VoterSnapshotStatus` (r:1 w:1)
+ /// Proof: `Staking::VoterSnapshotStatus` (`max_values`: Some(1), `max_size`: Some(33), added: 528, mode: `Measured`)
+ /// Storage: `VoterList::CounterForListNodes` (r:1 w:0)
+ /// Proof: `VoterList::CounterForListNodes` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `VoterList::ListNodes` (r:26001 w:0)
+ /// Proof: `VoterList::ListNodes` (`max_values`: None, `max_size`: Some(154), added: 2629, mode: `Measured`)
+ /// Storage: `Staking::Bonded` (r:704 w:0)
+ /// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `Measured`)
+ /// Storage: `Staking::Ledger` (r:704 w:0)
+ /// Proof: `Staking::Ledger` (`max_values`: None, `max_size`: Some(1091), added: 3566, mode: `Measured`)
+ /// Storage: `Staking::Nominators` (r:703 w:0)
+ /// Proof: `Staking::Nominators` (`max_values`: None, `max_size`: Some(558), added: 3033, mode: `Measured`)
+ /// Storage: `VoterList::ListBags` (r:200 w:0)
+ /// Proof: `VoterList::ListBags` (`max_values`: None, `max_size`: Some(82), added: 2557, mode: `Measured`)
+ /// Storage: `Staking::Validators` (r:165 w:0)
+ /// Proof: `Staking::Validators` (`max_values`: None, `max_size`: Some(45), added: 2520, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshotHash` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshotHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `Measured`)
+ /// Storage: `Staking::MinimumActiveStake` (r:0 w:1)
+ /// Proof: `Staking::MinimumActiveStake` (`max_values`: Some(1), `max_size`: Some(16), added: 511, mode: `Measured`)
+ fn on_initialize_into_snapshot_rest() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `5329975`
+ // Estimated: `69683440`
+ // Minimum execution time: 195_257_628_000 picoseconds.
+ Weight::from_parts(195_317_909_000, 69683440)
+ .saturating_add(RocksDbWeight::get().reads(28481_u64))
+ .saturating_add(RocksDbWeight::get().writes(5_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ fn on_initialize_into_signed() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `340`
+ // Estimated: `1825`
+ // Minimum execution time: 649_767_000 picoseconds.
+ Weight::from_parts(764_370_000, 1825)
+ .saturating_add(RocksDbWeight::get().reads(2_u64))
+ .saturating_add(RocksDbWeight::get().writes(1_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:0)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ fn on_initialize_into_signed_validation() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `340`
+ // Estimated: `3805`
+ // Minimum execution time: 657_218_000 picoseconds.
+ Weight::from_parts(674_575_000, 3805)
+ .saturating_add(RocksDbWeight::get().reads(4_u64))
+ .saturating_add(RocksDbWeight::get().writes(1_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `Measured`)
+ fn on_initialize_into_unsigned() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `340`
+ // Estimated: `1825`
+ // Minimum execution time: 866_827_000 picoseconds.
+ Weight::from_parts(890_863_000, 1825)
+ .saturating_add(RocksDbWeight::get().reads(3_u64))
+ .saturating_add(RocksDbWeight::get().writes(2_u64))
+ }
+ fn manage() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `0`
+ // Estimated: `0`
+ // Minimum execution time: 140_000 picoseconds.
+ Weight::from_parts(170_000, 0)
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block_signed.rs b/substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block_signed.rs
new file mode 100644
index 00000000000..3eb0e3ccd48
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block_signed.rs
@@ -0,0 +1,272 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Autogenerated weights for `pallet_election_provider_multi_block::signed`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 32.0.0
+//! DATE: 2025-02-13, STEPS: `2`, REPEAT: `3`, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! WORST CASE MAP SIZE: `1000000`
+//! HOSTNAME: `toaster1`, CPU: `AMD Ryzen Threadripper 7980X 64-Cores`
+//! WASM-EXECUTION: `Compiled`, CHAIN: `Some("dev")`, DB CACHE: `1024`
+
+// Executed Command:
+// target/release/substrate-node
+// benchmark
+// pallet
+// --chain
+// dev
+// --pallet
+// pallet_election_provider_multi_block::signed
+// --extrinsic
+// all
+// --steps
+// 2
+// --repeat
+// 3
+// --template
+// substrate/.maintain/frame-weight-template.hbs
+// --heap-pages
+// 65000
+// --default-pov-mode
+// measured
+// --output
+// ../measured
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+#![allow(missing_docs)]
+#![allow(dead_code)]
+
+use frame_support::{traits::Get, weights::{Weight, constants::RocksDbWeight}};
+use core::marker::PhantomData;
+
+/// Weight functions needed for `pallet_election_provider_multi_block::signed`.
+pub trait WeightInfo {
+ fn register_not_full() -> Weight;
+ fn register_eject() -> Weight;
+ fn submit_page() -> Weight;
+ fn unset_page() -> Weight;
+ fn bail() -> Weight;
+}
+
+/// Weights for `pallet_election_provider_multi_block::signed` using the Substrate node and recommended hardware.
+pub struct SubstrateWeight<T>(PhantomData<T>);
+impl<T: frame_system::Config> WeightInfo for SubstrateWeight<T> {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:0 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ fn register_not_full() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `3043`
+ // Estimated: `6508`
+ // Minimum execution time: 62_425_000 picoseconds.
+ Weight::from_parts(63_507_000, 6508)
+ .saturating_add(T::DbWeight::get().reads(4_u64))
+ .saturating_add(T::DbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:2 w:2)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:2)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ fn register_eject() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `7643`
+ // Estimated: `87833`
+ // Minimum execution time: 148_826_000 picoseconds.
+ Weight::from_parts(155_275_000, 87833)
+ .saturating_add(T::DbWeight::get().reads(38_u64))
+ .saturating_add(T::DbWeight::get().writes(37_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ fn submit_page() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `3459`
+ // Estimated: `6924`
+ // Minimum execution time: 697_450_000 picoseconds.
+ Weight::from_parts(762_938_000, 6924)
+ .saturating_add(T::DbWeight::get().reads(5_u64))
+ .saturating_add(T::DbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ fn unset_page() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `4287`
+ // Estimated: `7752`
+ // Minimum execution time: 681_035_000 picoseconds.
+ Weight::from_parts(711_671_000, 7752)
+ .saturating_add(T::DbWeight::get().reads(5_u64))
+ .saturating_add(T::DbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ fn bail() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `4508`
+ // Estimated: `84698`
+ // Minimum execution time: 117_619_000 picoseconds.
+ Weight::from_parts(118_169_000, 84698)
+ .saturating_add(T::DbWeight::get().reads(37_u64))
+ .saturating_add(T::DbWeight::get().writes(35_u64))
+ }
+}
+
+// For backwards compatibility and tests.
+impl WeightInfo for () {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:0 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ fn register_not_full() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `3043`
+ // Estimated: `6508`
+ // Minimum execution time: 62_425_000 picoseconds.
+ Weight::from_parts(63_507_000, 6508)
+ .saturating_add(RocksDbWeight::get().reads(4_u64))
+ .saturating_add(RocksDbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:2 w:2)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:2)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ fn register_eject() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `7643`
+ // Estimated: `87833`
+ // Minimum execution time: 148_826_000 picoseconds.
+ Weight::from_parts(155_275_000, 87833)
+ .saturating_add(RocksDbWeight::get().reads(38_u64))
+ .saturating_add(RocksDbWeight::get().writes(37_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ fn submit_page() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `3459`
+ // Estimated: `6924`
+ // Minimum execution time: 697_450_000 picoseconds.
+ Weight::from_parts(762_938_000, 6924)
+ .saturating_add(RocksDbWeight::get().reads(5_u64))
+ .saturating_add(RocksDbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ fn unset_page() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `4287`
+ // Estimated: `7752`
+ // Minimum execution time: 681_035_000 picoseconds.
+ Weight::from_parts(711_671_000, 7752)
+ .saturating_add(RocksDbWeight::get().reads(5_u64))
+ .saturating_add(RocksDbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ fn bail() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `4508`
+ // Estimated: `84698`
+ // Minimum execution time: 117_619_000 picoseconds.
+ Weight::from_parts(118_169_000, 84698)
+ .saturating_add(RocksDbWeight::get().reads(37_u64))
+ .saturating_add(RocksDbWeight::get().writes(35_u64))
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block_unsigned.rs b/substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block_unsigned.rs
new file mode 100644
index 00000000000..3fbe8099f87
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block_unsigned.rs
@@ -0,0 +1,153 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Autogenerated weights for `pallet_election_provider_multi_block::unsigned`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 32.0.0
+//! DATE: 2025-02-13, STEPS: `2`, REPEAT: `3`, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! WORST CASE MAP SIZE: `1000000`
+//! HOSTNAME: `toaster1`, CPU: `AMD Ryzen Threadripper 7980X 64-Cores`
+//! WASM-EXECUTION: `Compiled`, CHAIN: `Some("dev")`, DB CACHE: `1024`
+
+// Executed Command:
+// target/release/substrate-node
+// benchmark
+// pallet
+// --chain
+// dev
+// --pallet
+// pallet_election_provider_multi_block::unsigned
+// --extrinsic
+// all
+// --steps
+// 2
+// --repeat
+// 3
+// --template
+// substrate/.maintain/frame-weight-template.hbs
+// --heap-pages
+// 65000
+// --default-pov-mode
+// measured
+// --output
+// ../measured
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+#![allow(missing_docs)]
+#![allow(dead_code)]
+
+use frame_support::{traits::Get, weights::{Weight, constants::RocksDbWeight}};
+use core::marker::PhantomData;
+
+/// Weight functions needed for `pallet_election_provider_multi_block::unsigned`.
+pub trait WeightInfo {
+ fn validate_unsigned() -> Weight;
+ fn submit_unsigned() -> Weight;
+}
+
+/// Weights for `pallet_election_provider_multi_block::unsigned` using the Substrate node and recommended hardware.
+pub struct SubstrateWeight<T>(PhantomData<T>);
+impl<T: frame_system::Config> WeightInfo for SubstrateWeight<T> {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionScore` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::MinimumScore` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::MinimumScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `Measured`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ fn validate_unsigned() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `364`
+ // Estimated: `1849`
+ // Minimum execution time: 80_312_000 picoseconds.
+ Weight::from_parts(80_762_000, 1849)
+ .saturating_add(T::DbWeight::get().reads(5_u64))
+ }
+ /// Storage: `MultiBlockVerifier::QueuedSolutionScore` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::MinimumScore` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::MinimumScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `Measured`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionY` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionY` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `Measured`)
+ fn submit_unsigned() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `157641`
+ // Estimated: `161106`
+ // Minimum execution time: 3_629_133_000 picoseconds.
+ Weight::from_parts(4_086_909_000, 161106)
+ .saturating_add(T::DbWeight::get().reads(6_u64))
+ .saturating_add(T::DbWeight::get().writes(2_u64))
+ }
+}
+
+// For backwards compatibility and tests.
+impl WeightInfo for () {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionScore` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::MinimumScore` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::MinimumScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `Measured`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ fn validate_unsigned() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `364`
+ // Estimated: `1849`
+ // Minimum execution time: 80_312_000 picoseconds.
+ Weight::from_parts(80_762_000, 1849)
+ .saturating_add(RocksDbWeight::get().reads(5_u64))
+ }
+ /// Storage: `MultiBlockVerifier::QueuedSolutionScore` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::MinimumScore` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::MinimumScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `Measured`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionY` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionY` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `Measured`)
+ fn submit_unsigned() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `157641`
+ // Estimated: `161106`
+ // Minimum execution time: 3_629_133_000 picoseconds.
+ Weight::from_parts(4_086_909_000, 161106)
+ .saturating_add(RocksDbWeight::get().reads(6_u64))
+ .saturating_add(RocksDbWeight::get().writes(2_u64))
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block_verifier.rs b/substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block_verifier.rs
new file mode 100644
index 00000000000..cec05a6e08a
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/weights/measured/pallet_election_provider_multi_block_verifier.rs
@@ -0,0 +1,361 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Autogenerated weights for `pallet_election_provider_multi_block::verifier`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 32.0.0
+//! DATE: 2025-02-13, STEPS: `2`, REPEAT: `3`, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! WORST CASE MAP SIZE: `1000000`
+//! HOSTNAME: `toaster1`, CPU: `AMD Ryzen Threadripper 7980X 64-Cores`
+//! WASM-EXECUTION: `Compiled`, CHAIN: `Some("dev")`, DB CACHE: `1024`
+
+// Executed Command:
+// target/release/substrate-node
+// benchmark
+// pallet
+// --chain
+// dev
+// --pallet
+// pallet_election_provider_multi_block::verifier
+// --extrinsic
+// all
+// --steps
+// 2
+// --repeat
+// 3
+// --template
+// substrate/.maintain/frame-weight-template.hbs
+// --heap-pages
+// 65000
+// --default-pov-mode
+// measured
+// --output
+// ../measured
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+#![allow(missing_docs)]
+#![allow(dead_code)]
+
+use frame_support::{traits::Get, weights::{Weight, constants::RocksDbWeight}};
+use core::marker::PhantomData;
+
+/// Weight functions needed for `pallet_election_provider_multi_block::verifier`.
+pub trait WeightInfo {
+ fn on_initialize_valid_non_terminal() -> Weight;
+ fn on_initialize_valid_terminal() -> Weight;
+ fn on_initialize_invalid_terminal() -> Weight;
+ fn on_initialize_invalid_non_terminal(v: u32, ) -> Weight;
+}
+
+/// Weights for `pallet_election_provider_multi_block::verifier` using the Substrate node and recommended hardware.
+pub struct SubstrateWeight<T>(PhantomData<T>);
+impl<T: frame_system::Config> WeightInfo for SubstrateWeight<T> {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:0)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:1 w:0)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `Measured`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `Measured`)
+ fn on_initialize_valid_non_terminal() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `160552`
+ // Estimated: `164017`
+ // Minimum execution time: 917_013_000 picoseconds.
+ Weight::from_parts(919_406_000, 164017)
+ .saturating_add(T::DbWeight::get().reads(9_u64))
+ .saturating_add(T::DbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `Measured`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:33 w:32)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionScore` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `Measured`)
+ fn on_initialize_valid_terminal() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `881924`
+ // Estimated: `964589`
+ // Minimum execution time: 1_932_757_000 picoseconds.
+ Weight::from_parts(1_961_530_000, 964589)
+ .saturating_add(T::DbWeight::get().reads(76_u64))
+ .saturating_add(T::DbWeight::get().writes(71_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `Measured`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:33 w:32)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:31 w:32)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `Measured`)
+ fn on_initialize_invalid_terminal() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `882945`
+ // Estimated: `965610`
+ // Minimum execution time: 1_919_946_000 picoseconds.
+ Weight::from_parts(1_949_902_000, 965610)
+ .saturating_add(T::DbWeight::get().reads(106_u64))
+ .saturating_add(T::DbWeight::get().writes(100_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `Measured`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:31 w:31)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:31 w:31)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ /// The range of component `v` is `[0, 31]`.
+ fn on_initialize_invalid_non_terminal(v: u32, ) -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `164728 + v * (8538 ±0)`
+ // Estimated: `244918 + v * (16343 ±0)`
+ // Minimum execution time: 572_970_000 picoseconds.
+ Weight::from_parts(886_325_333, 244918)
+ // Standard Error: 19_873_926
+ .saturating_add(Weight::from_parts(27_871_795, 0).saturating_mul(v.into()))
+ .saturating_add(T::DbWeight::get().reads(42_u64))
+ .saturating_add(T::DbWeight::get().reads((2_u64).saturating_mul(v.into())))
+ .saturating_add(T::DbWeight::get().writes(36_u64))
+ .saturating_add(T::DbWeight::get().writes((2_u64).saturating_mul(v.into())))
+ .saturating_add(Weight::from_parts(0, 16343).saturating_mul(v.into()))
+ }
+}
+
+// For backwards compatibility and tests.
+impl WeightInfo for () {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:0)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:1 w:0)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `Measured`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `Measured`)
+ fn on_initialize_valid_non_terminal() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `160552`
+ // Estimated: `164017`
+ // Minimum execution time: 917_013_000 picoseconds.
+ Weight::from_parts(919_406_000, 164017)
+ .saturating_add(RocksDbWeight::get().reads(9_u64))
+ .saturating_add(RocksDbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `Measured`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:33 w:32)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionScore` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `Measured`)
+ fn on_initialize_valid_terminal() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `881924`
+ // Estimated: `964589`
+ // Minimum execution time: 1_932_757_000 picoseconds.
+ Weight::from_parts(1_961_530_000, 964589)
+ .saturating_add(RocksDbWeight::get().reads(76_u64))
+ .saturating_add(RocksDbWeight::get().writes(71_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `Measured`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:33 w:32)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:31 w:32)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `Measured`)
+ fn on_initialize_invalid_terminal() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `882945`
+ // Estimated: `965610`
+ // Minimum execution time: 1_919_946_000 picoseconds.
+ Weight::from_parts(1_949_902_000, 965610)
+ .saturating_add(RocksDbWeight::get().reads(106_u64))
+ .saturating_add(RocksDbWeight::get().writes(100_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `Measured`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `Measured`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `Measured`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:31 w:31)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `Measured`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:31 w:31)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `Measured`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `Measured`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `Measured`)
+ /// The range of component `v` is `[0, 31]`.
+ fn on_initialize_invalid_non_terminal(v: u32, ) -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `164728 + v * (8538 ±0)`
+ // Estimated: `244918 + v * (16343 ±0)`
+ // Minimum execution time: 572_970_000 picoseconds.
+ Weight::from_parts(886_325_333, 244918)
+ // Standard Error: 19_873_926
+ .saturating_add(Weight::from_parts(27_871_795, 0).saturating_mul(v.into()))
+ .saturating_add(RocksDbWeight::get().reads(42_u64))
+ .saturating_add(RocksDbWeight::get().reads((2_u64).saturating_mul(v.into())))
+ .saturating_add(RocksDbWeight::get().writes(36_u64))
+ .saturating_add(RocksDbWeight::get().writes((2_u64).saturating_mul(v.into())))
+ .saturating_add(Weight::from_parts(0, 16343).saturating_mul(v.into()))
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/weights/mel/mod.rs b/substrate/frame/election-provider-multi-block/src/weights/mel/mod.rs
new file mode 100644
index 00000000000..3050fc7e7f1
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/weights/mel/mod.rs
@@ -0,0 +1,21 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+pub mod pallet_election_provider_multi_block;
+pub mod pallet_election_provider_multi_block_signed;
+pub mod pallet_election_provider_multi_block_unsigned;
+pub mod pallet_election_provider_multi_block_verifier;
diff --git a/substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block.rs b/substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block.rs
new file mode 100644
index 00000000000..25b97d446cf
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block.rs
@@ -0,0 +1,362 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Autogenerated weights for `pallet_election_provider_multi_block`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 32.0.0
+//! DATE: 2025-02-13, STEPS: `2`, REPEAT: `3`, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! WORST CASE MAP SIZE: `1000000`
+//! HOSTNAME: `toaster1`, CPU: `AMD Ryzen Threadripper 7980X 64-Cores`
+//! WASM-EXECUTION: `Compiled`, CHAIN: `Some("dev")`, DB CACHE: `1024`
+
+// Executed Command:
+// target/release/substrate-node
+// benchmark
+// pallet
+// --chain
+// dev
+// --pallet
+// pallet_election_provider_multi_block
+// --extrinsic
+// all
+// --steps
+// 2
+// --repeat
+// 3
+// --template
+// substrate/.maintain/frame-weight-template.hbs
+// --heap-pages
+// 65000
+// --output
+// ../mel
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+#![allow(missing_docs)]
+#![allow(dead_code)]
+
+use frame_support::{traits::Get, weights::{Weight, constants::RocksDbWeight}};
+use core::marker::PhantomData;
+
+/// Weight functions needed for `pallet_election_provider_multi_block`.
+pub trait WeightInfo {
+ fn on_initialize_nothing() -> Weight;
+ fn on_initialize_into_snapshot_msp() -> Weight;
+ fn on_initialize_into_snapshot_rest() -> Weight;
+ fn on_initialize_into_signed() -> Weight;
+ fn on_initialize_into_signed_validation() -> Weight;
+ fn on_initialize_into_unsigned() -> Weight;
+ fn manage() -> Weight;
+}
+
+/// Weights for `pallet_election_provider_multi_block` using the Substrate node and recommended hardware.
+pub struct SubstrateWeight<T>(PhantomData<T>);
+impl<T: frame_system::Config> WeightInfo for SubstrateWeight<T> {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ fn on_initialize_nothing() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `156`
+ // Estimated: `1490`
+ // Minimum execution time: 9_425_000 picoseconds.
+ Weight::from_parts(9_514_000, 1490)
+ .saturating_add(T::DbWeight::get().reads(2_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::ValidatorCount` (r:1 w:0)
+ /// Proof: `Staking::ValidatorCount` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::CounterForValidators` (r:1 w:0)
+ /// Proof: `Staking::CounterForValidators` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Validators` (r:1002 w:0)
+ /// Proof: `Staking::Validators` (`max_values`: None, `max_size`: Some(45), added: 2520, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::VoterSnapshotStatus` (r:1 w:1)
+ /// Proof: `Staking::VoterSnapshotStatus` (`max_values`: Some(1), `max_size`: Some(33), added: 528, mode: `MaxEncodedLen`)
+ /// Storage: `VoterList::CounterForListNodes` (r:1 w:0)
+ /// Proof: `VoterList::CounterForListNodes` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `VoterList::ListBags` (r:200 w:0)
+ /// Proof: `VoterList::ListBags` (`max_values`: None, `max_size`: Some(82), added: 2557, mode: `MaxEncodedLen`)
+ /// Storage: `VoterList::ListNodes` (r:26001 w:0)
+ /// Proof: `VoterList::ListNodes` (`max_values`: None, `max_size`: Some(154), added: 2629, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Bonded` (r:703 w:0)
+ /// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Ledger` (r:703 w:0)
+ /// Proof: `Staking::Ledger` (`max_values`: None, `max_size`: Some(1091), added: 3566, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Nominators` (r:703 w:0)
+ /// Proof: `Staking::Nominators` (`max_values`: None, `max_size`: Some(558), added: 3033, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:0 w:1)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedTargetSnapshotHash` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedTargetSnapshotHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshotHash` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshotHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::MinimumActiveStake` (r:0 w:1)
+ /// Proof: `Staking::MinimumActiveStake` (`max_values`: Some(1), `max_size`: Some(16), added: 511, mode: `MaxEncodedLen`)
+ fn on_initialize_into_snapshot_msp() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `5151586`
+ // Estimated: `68357619`
+ // Minimum execution time: 205_124_352_000 picoseconds.
+ Weight::from_parts(206_087_996_000, 68357619)
+ .saturating_add(T::DbWeight::get().reads(29318_u64))
+ .saturating_add(T::DbWeight::get().writes(8_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::VoterSnapshotStatus` (r:1 w:1)
+ /// Proof: `Staking::VoterSnapshotStatus` (`max_values`: Some(1), `max_size`: Some(33), added: 528, mode: `MaxEncodedLen`)
+ /// Storage: `VoterList::CounterForListNodes` (r:1 w:0)
+ /// Proof: `VoterList::CounterForListNodes` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `VoterList::ListNodes` (r:26001 w:0)
+ /// Proof: `VoterList::ListNodes` (`max_values`: None, `max_size`: Some(154), added: 2629, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Bonded` (r:704 w:0)
+ /// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Ledger` (r:704 w:0)
+ /// Proof: `Staking::Ledger` (`max_values`: None, `max_size`: Some(1091), added: 3566, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Nominators` (r:703 w:0)
+ /// Proof: `Staking::Nominators` (`max_values`: None, `max_size`: Some(558), added: 3033, mode: `MaxEncodedLen`)
+ /// Storage: `VoterList::ListBags` (r:200 w:0)
+ /// Proof: `VoterList::ListBags` (`max_values`: None, `max_size`: Some(82), added: 2557, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Validators` (r:165 w:0)
+ /// Proof: `Staking::Validators` (`max_values`: None, `max_size`: Some(45), added: 2520, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshotHash` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshotHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::MinimumActiveStake` (r:0 w:1)
+ /// Proof: `Staking::MinimumActiveStake` (`max_values`: Some(1), `max_size`: Some(16), added: 511, mode: `MaxEncodedLen`)
+ fn on_initialize_into_snapshot_rest() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `5329975`
+ // Estimated: `68357619`
+ // Minimum execution time: 197_146_155_000 picoseconds.
+ Weight::from_parts(198_376_173_000, 68357619)
+ .saturating_add(T::DbWeight::get().reads(28481_u64))
+ .saturating_add(T::DbWeight::get().writes(5_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ fn on_initialize_into_signed() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `340`
+ // Estimated: `1490`
+ // Minimum execution time: 750_450_000 picoseconds.
+ Weight::from_parts(764_001_000, 1490)
+ .saturating_add(T::DbWeight::get().reads(2_u64))
+ .saturating_add(T::DbWeight::get().writes(1_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:0)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ fn on_initialize_into_signed_validation() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `340`
+ // Estimated: `4118`
+ // Minimum execution time: 626_412_000 picoseconds.
+ Weight::from_parts(663_538_000, 4118)
+ .saturating_add(T::DbWeight::get().reads(4_u64))
+ .saturating_add(T::DbWeight::get().writes(1_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `MaxEncodedLen`)
+ fn on_initialize_into_unsigned() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `340`
+ // Estimated: `1490`
+ // Minimum execution time: 734_786_000 picoseconds.
+ Weight::from_parts(882_059_000, 1490)
+ .saturating_add(T::DbWeight::get().reads(3_u64))
+ .saturating_add(T::DbWeight::get().writes(2_u64))
+ }
+ fn manage() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `0`
+ // Estimated: `0`
+ // Minimum execution time: 141_000 picoseconds.
+ Weight::from_parts(150_000, 0)
+ }
+}
+
+// For backwards compatibility and tests.
+impl WeightInfo for () {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ fn on_initialize_nothing() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `156`
+ // Estimated: `1490`
+ // Minimum execution time: 9_425_000 picoseconds.
+ Weight::from_parts(9_514_000, 1490)
+ .saturating_add(RocksDbWeight::get().reads(2_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::ValidatorCount` (r:1 w:0)
+ /// Proof: `Staking::ValidatorCount` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::CounterForValidators` (r:1 w:0)
+ /// Proof: `Staking::CounterForValidators` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Validators` (r:1002 w:0)
+ /// Proof: `Staking::Validators` (`max_values`: None, `max_size`: Some(45), added: 2520, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::VoterSnapshotStatus` (r:1 w:1)
+ /// Proof: `Staking::VoterSnapshotStatus` (`max_values`: Some(1), `max_size`: Some(33), added: 528, mode: `MaxEncodedLen`)
+ /// Storage: `VoterList::CounterForListNodes` (r:1 w:0)
+ /// Proof: `VoterList::CounterForListNodes` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `VoterList::ListBags` (r:200 w:0)
+ /// Proof: `VoterList::ListBags` (`max_values`: None, `max_size`: Some(82), added: 2557, mode: `MaxEncodedLen`)
+ /// Storage: `VoterList::ListNodes` (r:26001 w:0)
+ /// Proof: `VoterList::ListNodes` (`max_values`: None, `max_size`: Some(154), added: 2629, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Bonded` (r:703 w:0)
+ /// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Ledger` (r:703 w:0)
+ /// Proof: `Staking::Ledger` (`max_values`: None, `max_size`: Some(1091), added: 3566, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Nominators` (r:703 w:0)
+ /// Proof: `Staking::Nominators` (`max_values`: None, `max_size`: Some(558), added: 3033, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:0 w:1)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedTargetSnapshotHash` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedTargetSnapshotHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshotHash` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshotHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::MinimumActiveStake` (r:0 w:1)
+ /// Proof: `Staking::MinimumActiveStake` (`max_values`: Some(1), `max_size`: Some(16), added: 511, mode: `MaxEncodedLen`)
+ fn on_initialize_into_snapshot_msp() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `5151586`
+ // Estimated: `68357619`
+ // Minimum execution time: 205_124_352_000 picoseconds.
+ Weight::from_parts(206_087_996_000, 68357619)
+ .saturating_add(RocksDbWeight::get().reads(29318_u64))
+ .saturating_add(RocksDbWeight::get().writes(8_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::VoterSnapshotStatus` (r:1 w:1)
+ /// Proof: `Staking::VoterSnapshotStatus` (`max_values`: Some(1), `max_size`: Some(33), added: 528, mode: `MaxEncodedLen`)
+ /// Storage: `VoterList::CounterForListNodes` (r:1 w:0)
+ /// Proof: `VoterList::CounterForListNodes` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `VoterList::ListNodes` (r:26001 w:0)
+ /// Proof: `VoterList::ListNodes` (`max_values`: None, `max_size`: Some(154), added: 2629, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Bonded` (r:704 w:0)
+ /// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Ledger` (r:704 w:0)
+ /// Proof: `Staking::Ledger` (`max_values`: None, `max_size`: Some(1091), added: 3566, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Nominators` (r:703 w:0)
+ /// Proof: `Staking::Nominators` (`max_values`: None, `max_size`: Some(558), added: 3033, mode: `MaxEncodedLen`)
+ /// Storage: `VoterList::ListBags` (r:200 w:0)
+ /// Proof: `VoterList::ListBags` (`max_values`: None, `max_size`: Some(82), added: 2557, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::Validators` (r:165 w:0)
+ /// Proof: `Staking::Validators` (`max_values`: None, `max_size`: Some(45), added: 2520, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshotHash` (r:0 w:1)
+ /// Proof: `MultiBlock::PagedVoterSnapshotHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `MaxEncodedLen`)
+ /// Storage: `Staking::MinimumActiveStake` (r:0 w:1)
+ /// Proof: `Staking::MinimumActiveStake` (`max_values`: Some(1), `max_size`: Some(16), added: 511, mode: `MaxEncodedLen`)
+ fn on_initialize_into_snapshot_rest() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `5329975`
+ // Estimated: `68357619`
+ // Minimum execution time: 197_146_155_000 picoseconds.
+ Weight::from_parts(198_376_173_000, 68357619)
+ .saturating_add(RocksDbWeight::get().reads(28481_u64))
+ .saturating_add(RocksDbWeight::get().writes(5_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ fn on_initialize_into_signed() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `340`
+ // Estimated: `1490`
+ // Minimum execution time: 750_450_000 picoseconds.
+ Weight::from_parts(764_001_000, 1490)
+ .saturating_add(RocksDbWeight::get().reads(2_u64))
+ .saturating_add(RocksDbWeight::get().writes(1_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:0)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ fn on_initialize_into_signed_validation() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `340`
+ // Estimated: `4118`
+ // Minimum execution time: 626_412_000 picoseconds.
+ Weight::from_parts(663_538_000, 4118)
+ .saturating_add(RocksDbWeight::get().reads(4_u64))
+ .saturating_add(RocksDbWeight::get().writes(1_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:1)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `MaxEncodedLen`)
+ fn on_initialize_into_unsigned() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `340`
+ // Estimated: `1490`
+ // Minimum execution time: 734_786_000 picoseconds.
+ Weight::from_parts(882_059_000, 1490)
+ .saturating_add(RocksDbWeight::get().reads(3_u64))
+ .saturating_add(RocksDbWeight::get().writes(2_u64))
+ }
+ fn manage() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `0`
+ // Estimated: `0`
+ // Minimum execution time: 141_000 picoseconds.
+ Weight::from_parts(150_000, 0)
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block_signed.rs b/substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block_signed.rs
new file mode 100644
index 00000000000..98e238145ae
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block_signed.rs
@@ -0,0 +1,270 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Autogenerated weights for `pallet_election_provider_multi_block::signed`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 32.0.0
+//! DATE: 2025-02-13, STEPS: `2`, REPEAT: `3`, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! WORST CASE MAP SIZE: `1000000`
+//! HOSTNAME: `toaster1`, CPU: `AMD Ryzen Threadripper 7980X 64-Cores`
+//! WASM-EXECUTION: `Compiled`, CHAIN: `Some("dev")`, DB CACHE: `1024`
+
+// Executed Command:
+// target/release/substrate-node
+// benchmark
+// pallet
+// --chain
+// dev
+// --pallet
+// pallet_election_provider_multi_block::signed
+// --extrinsic
+// all
+// --steps
+// 2
+// --repeat
+// 3
+// --template
+// substrate/.maintain/frame-weight-template.hbs
+// --heap-pages
+// 65000
+// --output
+// ../mel
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+#![allow(missing_docs)]
+#![allow(dead_code)]
+
+use frame_support::{traits::Get, weights::{Weight, constants::RocksDbWeight}};
+use core::marker::PhantomData;
+
+/// Weight functions needed for `pallet_election_provider_multi_block::signed`.
+pub trait WeightInfo {
+ fn register_not_full() -> Weight;
+ fn register_eject() -> Weight;
+ fn submit_page() -> Weight;
+ fn unset_page() -> Weight;
+ fn bail() -> Weight;
+}
+
+/// Weights for `pallet_election_provider_multi_block::signed` using the Substrate node and recommended hardware.
+pub struct SubstrateWeight<T>(PhantomData<T>);
+impl<T: frame_system::Config> WeightInfo for SubstrateWeight<T> {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:0 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ fn register_not_full() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `3043`
+ // Estimated: `4118`
+ // Minimum execution time: 60_863_000 picoseconds.
+ Weight::from_parts(61_264_000, 4118)
+ .saturating_add(T::DbWeight::get().reads(4_u64))
+ .saturating_add(T::DbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:2 w:2)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:2)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ fn register_eject() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `7643`
+ // Estimated: `1185054`
+ // Minimum execution time: 149_207_000 picoseconds.
+ Weight::from_parts(151_520_000, 1185054)
+ .saturating_add(T::DbWeight::get().reads(38_u64))
+ .saturating_add(T::DbWeight::get().writes(37_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ fn submit_page() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `3459`
+ // Estimated: `37992`
+ // Minimum execution time: 707_404_000 picoseconds.
+ Weight::from_parts(752_393_000, 37992)
+ .saturating_add(T::DbWeight::get().reads(5_u64))
+ .saturating_add(T::DbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ fn unset_page() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `4287`
+ // Estimated: `37992`
+ // Minimum execution time: 716_769_000 picoseconds.
+ Weight::from_parts(761_406_000, 37992)
+ .saturating_add(T::DbWeight::get().reads(5_u64))
+ .saturating_add(T::DbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ fn bail() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `4508`
+ // Estimated: `1185054`
+ // Minimum execution time: 117_038_000 picoseconds.
+ Weight::from_parts(117_468_000, 1185054)
+ .saturating_add(T::DbWeight::get().reads(37_u64))
+ .saturating_add(T::DbWeight::get().writes(35_u64))
+ }
+}
+
+// For backwards compatibility and tests.
+impl WeightInfo for () {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:0 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ fn register_not_full() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `3043`
+ // Estimated: `4118`
+ // Minimum execution time: 60_863_000 picoseconds.
+ Weight::from_parts(61_264_000, 4118)
+ .saturating_add(RocksDbWeight::get().reads(4_u64))
+ .saturating_add(RocksDbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:2 w:2)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:2)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ fn register_eject() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `7643`
+ // Estimated: `1185054`
+ // Minimum execution time: 149_207_000 picoseconds.
+ Weight::from_parts(151_520_000, 1185054)
+ .saturating_add(RocksDbWeight::get().reads(38_u64))
+ .saturating_add(RocksDbWeight::get().writes(37_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ fn submit_page() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `3459`
+ // Estimated: `37992`
+ // Minimum execution time: 707_404_000 picoseconds.
+ Weight::from_parts(752_393_000, 37992)
+ .saturating_add(RocksDbWeight::get().reads(5_u64))
+ .saturating_add(RocksDbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ fn unset_page() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `4287`
+ // Estimated: `37992`
+ // Minimum execution time: 716_769_000 picoseconds.
+ Weight::from_parts(761_406_000, 37992)
+ .saturating_add(RocksDbWeight::get().reads(5_u64))
+ .saturating_add(RocksDbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ fn bail() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `4508`
+ // Estimated: `1185054`
+ // Minimum execution time: 117_038_000 picoseconds.
+ Weight::from_parts(117_468_000, 1185054)
+ .saturating_add(RocksDbWeight::get().reads(37_u64))
+ .saturating_add(RocksDbWeight::get().writes(35_u64))
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block_unsigned.rs b/substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block_unsigned.rs
new file mode 100644
index 00000000000..7f05b13174a
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block_unsigned.rs
@@ -0,0 +1,151 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Autogenerated weights for `pallet_election_provider_multi_block::unsigned`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 32.0.0
+//! DATE: 2025-02-13, STEPS: `2`, REPEAT: `3`, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! WORST CASE MAP SIZE: `1000000`
+//! HOSTNAME: `toaster1`, CPU: `AMD Ryzen Threadripper 7980X 64-Cores`
+//! WASM-EXECUTION: `Compiled`, CHAIN: `Some("dev")`, DB CACHE: `1024`
+
+// Executed Command:
+// target/release/substrate-node
+// benchmark
+// pallet
+// --chain
+// dev
+// --pallet
+// pallet_election_provider_multi_block::unsigned
+// --extrinsic
+// all
+// --steps
+// 2
+// --repeat
+// 3
+// --template
+// substrate/.maintain/frame-weight-template.hbs
+// --heap-pages
+// 65000
+// --output
+// ../mel
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+#![allow(missing_docs)]
+#![allow(dead_code)]
+
+use frame_support::{traits::Get, weights::{Weight, constants::RocksDbWeight}};
+use core::marker::PhantomData;
+
+/// Weight functions needed for `pallet_election_provider_multi_block::unsigned`.
+pub trait WeightInfo {
+ fn validate_unsigned() -> Weight;
+ fn submit_unsigned() -> Weight;
+}
+
+/// Weights for `pallet_election_provider_multi_block::unsigned` using the Substrate node and recommended hardware.
+pub struct SubstrateWeight<T>(PhantomData<T>);
+impl<T: frame_system::Config> WeightInfo for SubstrateWeight<T> {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionScore` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::MinimumScore` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::MinimumScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ fn validate_unsigned() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `364`
+ // Estimated: `1533`
+ // Minimum execution time: 77_037_000 picoseconds.
+ Weight::from_parts(77_588_000, 1533)
+ .saturating_add(T::DbWeight::get().reads(5_u64))
+ }
+ /// Storage: `MultiBlockVerifier::QueuedSolutionScore` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::MinimumScore` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::MinimumScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionY` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionY` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `MaxEncodedLen`)
+ fn submit_unsigned() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `157641`
+ // Estimated: `392238`
+ // Minimum execution time: 3_607_268_000 picoseconds.
+ Weight::from_parts(4_015_058_000, 392238)
+ .saturating_add(T::DbWeight::get().reads(6_u64))
+ .saturating_add(T::DbWeight::get().writes(2_u64))
+ }
+}
+
+// For backwards compatibility and tests.
+impl WeightInfo for () {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionScore` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::MinimumScore` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::MinimumScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ fn validate_unsigned() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `364`
+ // Estimated: `1533`
+ // Minimum execution time: 77_037_000 picoseconds.
+ Weight::from_parts(77_588_000, 1533)
+ .saturating_add(RocksDbWeight::get().reads(5_u64))
+ }
+ /// Storage: `MultiBlockVerifier::QueuedSolutionScore` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::MinimumScore` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::MinimumScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionY` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionY` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `MaxEncodedLen`)
+ fn submit_unsigned() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `157641`
+ // Estimated: `392238`
+ // Minimum execution time: 3_607_268_000 picoseconds.
+ Weight::from_parts(4_015_058_000, 392238)
+ .saturating_add(RocksDbWeight::get().reads(6_u64))
+ .saturating_add(RocksDbWeight::get().writes(2_u64))
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block_verifier.rs b/substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block_verifier.rs
new file mode 100644
index 00000000000..55d359f5c28
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/weights/mel/pallet_election_provider_multi_block_verifier.rs
@@ -0,0 +1,359 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Autogenerated weights for `pallet_election_provider_multi_block::verifier`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 32.0.0
+//! DATE: 2025-02-13, STEPS: `2`, REPEAT: `3`, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! WORST CASE MAP SIZE: `1000000`
+//! HOSTNAME: `toaster1`, CPU: `AMD Ryzen Threadripper 7980X 64-Cores`
+//! WASM-EXECUTION: `Compiled`, CHAIN: `Some("dev")`, DB CACHE: `1024`
+
+// Executed Command:
+// target/release/substrate-node
+// benchmark
+// pallet
+// --chain
+// dev
+// --pallet
+// pallet_election_provider_multi_block::verifier
+// --extrinsic
+// all
+// --steps
+// 2
+// --repeat
+// 3
+// --template
+// substrate/.maintain/frame-weight-template.hbs
+// --heap-pages
+// 65000
+// --output
+// ../mel
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+#![allow(missing_docs)]
+#![allow(dead_code)]
+
+use frame_support::{traits::Get, weights::{Weight, constants::RocksDbWeight}};
+use core::marker::PhantomData;
+
+/// Weight functions needed for `pallet_election_provider_multi_block::verifier`.
+pub trait WeightInfo {
+ fn on_initialize_valid_non_terminal() -> Weight;
+ fn on_initialize_valid_terminal() -> Weight;
+ fn on_initialize_invalid_terminal() -> Weight;
+ fn on_initialize_invalid_non_terminal(v: u32, ) -> Weight;
+}
+
+/// Weights for `pallet_election_provider_multi_block::verifier` using the Substrate node and recommended hardware.
+pub struct SubstrateWeight<T>(PhantomData<T>);
+impl<T: frame_system::Config> WeightInfo for SubstrateWeight<T> {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:0)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:1 w:0)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `MaxEncodedLen`)
+ fn on_initialize_valid_non_terminal() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `160552`
+ // Estimated: `392238`
+ // Minimum execution time: 881_299_000 picoseconds.
+ Weight::from_parts(1_161_243_000, 392238)
+ .saturating_add(T::DbWeight::get().reads(9_u64))
+ .saturating_add(T::DbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:33 w:32)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionScore` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `MaxEncodedLen`)
+ fn on_initialize_valid_terminal() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `881924`
+ // Estimated: `1799127`
+ // Minimum execution time: 1_974_549_000 picoseconds.
+ Weight::from_parts(2_755_105_000, 1799127)
+ .saturating_add(T::DbWeight::get().reads(76_u64))
+ .saturating_add(T::DbWeight::get().writes(71_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:33 w:32)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:31 w:32)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `MaxEncodedLen`)
+ fn on_initialize_invalid_terminal() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `882945`
+ // Estimated: `192092149`
+ // Minimum execution time: 1_982_131_000 picoseconds.
+ Weight::from_parts(1_994_790_000, 192092149)
+ .saturating_add(T::DbWeight::get().reads(106_u64))
+ .saturating_add(T::DbWeight::get().writes(100_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:31 w:31)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:31 w:31)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ /// The range of component `v` is `[0, 31]`.
+ fn on_initialize_invalid_non_terminal(v: u32, ) -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `164728 + v * (8538 ±0)`
+ // Estimated: `1185054 + v * (6190080 ±0)`
+ // Minimum execution time: 574_462_000 picoseconds.
+ Weight::from_parts(575_951_333, 1185054)
+ // Standard Error: 975_598
+ .saturating_add(Weight::from_parts(9_099_741, 0).saturating_mul(v.into()))
+ .saturating_add(T::DbWeight::get().reads(42_u64))
+ .saturating_add(T::DbWeight::get().reads((2_u64).saturating_mul(v.into())))
+ .saturating_add(T::DbWeight::get().writes(36_u64))
+ .saturating_add(T::DbWeight::get().writes((2_u64).saturating_mul(v.into())))
+ .saturating_add(Weight::from_parts(0, 6190080).saturating_mul(v.into()))
+ }
+}
+
+// For backwards compatibility and tests.
+impl WeightInfo for () {
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:0)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:1 w:0)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `MaxEncodedLen`)
+ fn on_initialize_valid_non_terminal() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `160552`
+ // Estimated: `392238`
+ // Minimum execution time: 881_299_000 picoseconds.
+ Weight::from_parts(1_161_243_000, 392238)
+ .saturating_add(RocksDbWeight::get().reads(9_u64))
+ .saturating_add(RocksDbWeight::get().writes(3_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:33 w:32)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionScore` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionScore` (`max_values`: Some(1), `max_size`: Some(48), added: 543, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:0 w:1)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `MaxEncodedLen`)
+ fn on_initialize_valid_terminal() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `881924`
+ // Estimated: `1799127`
+ // Minimum execution time: 1_974_549_000 picoseconds.
+ Weight::from_parts(2_755_105_000, 1799127)
+ .saturating_add(RocksDbWeight::get().reads(76_u64))
+ .saturating_add(RocksDbWeight::get().writes(71_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:33 w:32)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:31 w:32)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `MaxEncodedLen`)
+ fn on_initialize_invalid_terminal() -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `882945`
+ // Estimated: `192092149`
+ // Minimum execution time: 1_982_131_000 picoseconds.
+ Weight::from_parts(1_994_790_000, 192092149)
+ .saturating_add(RocksDbWeight::get().reads(106_u64))
+ .saturating_add(RocksDbWeight::get().writes(100_u64))
+ }
+ /// Storage: `MultiBlock::CurrentPhase` (r:1 w:0)
+ /// Proof: `MultiBlock::CurrentPhase` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::StatusStorage` (r:1 w:1)
+ /// Proof: `MultiBlockVerifier::StatusStorage` (`max_values`: Some(1), `max_size`: Some(5), added: 500, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::Round` (r:1 w:0)
+ /// Proof: `MultiBlock::Round` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SortedScores` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SortedScores` (`max_values`: None, `max_size`: Some(653), added: 3128, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionStorage` (r:32 w:32)
+ /// Proof: `MultiBlockSigned::SubmissionStorage` (`max_values`: None, `max_size`: Some(34527), added: 37002, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedTargetSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedTargetSnapshot` (`max_values`: None, `max_size`: Some(32014), added: 34489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::PagedVoterSnapshot` (r:1 w:0)
+ /// Proof: `MultiBlock::PagedVoterSnapshot` (`max_values`: None, `max_size`: Some(388773), added: 391248, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlock::DesiredTargets` (r:1 w:0)
+ /// Proof: `MultiBlock::DesiredTargets` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedValidVariant` (r:1 w:0)
+ /// Proof: `MultiBlockVerifier::QueuedValidVariant` (`max_values`: Some(1), `max_size`: Some(1), added: 496, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionX` (r:31 w:31)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionX` (`max_values`: None, `max_size`: Some(6194014), added: 6196489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockVerifier::QueuedSolutionBackings` (r:31 w:31)
+ /// Proof: `MultiBlockVerifier::QueuedSolutionBackings` (`max_values`: None, `max_size`: Some(52014), added: 54489, mode: `MaxEncodedLen`)
+ /// Storage: `MultiBlockSigned::SubmissionMetadataStorage` (r:1 w:1)
+ /// Proof: `MultiBlockSigned::SubmissionMetadataStorage` (`max_values`: None, `max_size`: Some(181), added: 2656, mode: `MaxEncodedLen`)
+ /// Storage: `Balances::Holds` (r:1 w:1)
+ /// Proof: `Balances::Holds` (`max_values`: None, `max_size`: Some(427), added: 2902, mode: `MaxEncodedLen`)
+ /// The range of component `v` is `[0, 31]`.
+ fn on_initialize_invalid_non_terminal(v: u32, ) -> Weight {
+ // Proof Size summary in bytes:
+ // Measured: `164728 + v * (8538 ±0)`
+ // Estimated: `1185054 + v * (6190080 ±0)`
+ // Minimum execution time: 574_462_000 picoseconds.
+ Weight::from_parts(575_951_333, 1185054)
+ // Standard Error: 975_598
+ .saturating_add(Weight::from_parts(9_099_741, 0).saturating_mul(v.into()))
+ .saturating_add(RocksDbWeight::get().reads(42_u64))
+ .saturating_add(RocksDbWeight::get().reads((2_u64).saturating_mul(v.into())))
+ .saturating_add(RocksDbWeight::get().writes(36_u64))
+ .saturating_add(RocksDbWeight::get().writes((2_u64).saturating_mul(v.into())))
+ .saturating_add(Weight::from_parts(0, 6190080).saturating_mul(v.into()))
+ }
+}
diff --git a/substrate/frame/election-provider-multi-block/src/weights/mod.rs b/substrate/frame/election-provider-multi-block/src/weights/mod.rs
new file mode 100644
index 00000000000..89b39600984
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/weights/mod.rs
@@ -0,0 +1,22 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#![allow(unused)]
+pub(crate) mod measured;
+pub(crate) mod mel;
+pub(crate) mod zero;
+pub use zero::AllZeroWeights;
diff --git a/substrate/frame/election-provider-multi-block/src/weights/zero.rs b/substrate/frame/election-provider-multi-block/src/weights/zero.rs
new file mode 100644
index 00000000000..38210adde7c
--- /dev/null
+++ b/substrate/frame/election-provider-multi-block/src/weights/zero.rs
@@ -0,0 +1,89 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! A set of zero weights for all benchmarks of this pallet to be temporarily used in testing
+//! runtimes while benchmarking is being finalized.
+
+/// A `WeightInfo` impl with all zero weights
+pub struct AllZeroWeights;
+use frame_support::weights::Weight;
+
+impl crate::WeightInfo for AllZeroWeights {
+ fn manage() -> Weight {
+ Default::default()
+ }
+ fn on_initialize_into_signed() -> Weight {
+ Default::default()
+ }
+ fn on_initialize_into_signed_validation() -> Weight {
+ Default::default()
+ }
+ fn on_initialize_into_snapshot_msp() -> Weight {
+ Default::default()
+ }
+ fn on_initialize_into_snapshot_rest() -> Weight {
+ Default::default()
+ }
+ fn on_initialize_into_unsigned() -> Weight {
+ Default::default()
+ }
+ fn on_initialize_nothing() -> Weight {
+ Default::default()
+ }
+}
+
+impl crate::signed::WeightInfo for AllZeroWeights {
+ fn bail() -> Weight {
+ Default::default()
+ }
+ fn register_eject() -> Weight {
+ Default::default()
+ }
+ fn register_not_full() -> Weight {
+ Default::default()
+ }
+ fn submit_page() -> Weight {
+ Default::default()
+ }
+ fn unset_page() -> Weight {
+ Default::default()
+ }
+}
+
+impl crate::unsigned::WeightInfo for AllZeroWeights {
+ fn submit_unsigned() -> Weight {
+ Default::default()
+ }
+ fn validate_unsigned() -> Weight {
+ Default::default()
+ }
+}
+
+impl crate::verifier::WeightInfo for AllZeroWeights {
+ fn on_initialize_invalid_non_terminal(_: u32) -> Weight {
+ Default::default()
+ }
+ fn on_initialize_invalid_terminal() -> Weight {
+ Default::default()
+ }
+ fn on_initialize_valid_non_terminal() -> Weight {
+ Default::default()
+ }
+ fn on_initialize_valid_terminal() -> Weight {
+ Default::default()
+ }
+}
diff --git a/substrate/frame/election-provider-multi-phase/src/benchmarking.rs b/substrate/frame/election-provider-multi-phase/src/benchmarking.rs
index 222e79ab99c..20984f11a44 100644
--- a/substrate/frame/election-provider-multi-phase/src/benchmarking.rs
+++ b/substrate/frame/election-provider-multi-phase/src/benchmarking.rs
@@ -197,6 +197,7 @@ mod benchmarks {
#[benchmark]
fn on_initialize_nothing() {
+ T::DataProvider::set_next_election(sp_runtime::traits::Bounded::max_value());
assert!(CurrentPhase::<T>::get().is_off());
#[block]
@@ -288,9 +289,11 @@ mod benchmarks {
) -> Result<(), BenchmarkError> {
// We don't directly need the data-provider to be populated, but it is just easy to use it.
set_up_data_provider::<T>(v, t);
- // Default bounds are unbounded.
- let targets = T::DataProvider::electable_targets(DataProviderBounds::default())?;
- let voters = T::DataProvider::electing_voters(DataProviderBounds::default())?;
+ // default bounds are unbounded.
+ let targets =
+ T::DataProvider::electable_targets(DataProviderBounds::default(), Zero::zero())?;
+ let voters = T::DataProvider::electing_voters(DataProviderBounds::default(), Zero::zero())?;
+
let desired_targets = T::DataProvider::desired_targets()?;
assert!(Snapshot::<T>::get().is_none());
@@ -300,8 +303,9 @@ mod benchmarks {
}
assert!(Snapshot::<T>::get().is_some());
- assert_eq!(SnapshotMetadata::<T>::get().ok_or("metadata missing")?.voters, v);
- assert_eq!(SnapshotMetadata::<T>::get().ok_or("metadata missing")?.targets, t);
+ // TODO: bring this back
+ // assert_eq!(SnapshotMetadata::<T>::get().ok_or("metadata missing")?.voters, v);
+ // assert_eq!(SnapshotMetadata::<T>::get().ok_or("metadata missing")?.targets, t);
Ok(())
}
@@ -343,7 +347,7 @@ mod benchmarks {
#[block]
{
- result = <Pallet<T> as ElectionProvider>::elect();
+ result = <Pallet<T> as ElectionProvider>::elect(Zero::zero());
}
assert!(result.is_ok());
@@ -531,8 +535,9 @@ mod benchmarks {
}
assert!(Snapshot::<T>::get().is_some());
- assert_eq!(SnapshotMetadata::<T>::get().ok_or("snapshot missing")?.voters, v);
- assert_eq!(SnapshotMetadata::<T>::get().ok_or("snapshot missing")?.targets, t);
+ // TODO: bring this back
+ // assert_eq!(SnapshotMetadata::<T>::get().ok_or("snapshot missing")?.voters, v);
+ // assert_eq!(SnapshotMetadata::<T>::get().ok_or("snapshot missing")?.targets, t);
Ok(())
}
diff --git a/substrate/frame/election-provider-multi-phase/src/lib.rs b/substrate/frame/election-provider-multi-phase/src/lib.rs
index 06cb2963d76..3a5103d2bb8 100644
--- a/substrate/frame/election-provider-multi-phase/src/lib.rs
+++ b/substrate/frame/election-provider-multi-phase/src/lib.rs
@@ -189,6 +189,18 @@
//! Note that there could be an overlap between these sub-errors. For example, A
//! `SnapshotUnavailable` can happen in both miner and feasibility check phase.
//!
+//! ## Multi-page election support
+//!
+//! The [`frame_election_provider_support::ElectionDataProvider`] and
+//! [`frame_election_provider_support::ElectionProvider`] traits used by this pallet can support a
+//! multi-page election.
+//!
+//! However, this pallet only supports single-page election and data
+//! provider and all the relevant trait implementation and configurations reflect that assumption.
+//!
+//! If external callers request the election of a page index higher than 0, the election will fail
+//! with [`ElectionError::MultiPageNotSupported`].
+//!
//! ## Future Plans
//!
//! **Emergency-phase recovery script**: This script should be taken out of staking-miner in
@@ -234,14 +246,14 @@ extern crate alloc;
use alloc::{boxed::Box, vec::Vec};
use codec::{Decode, Encode};
use frame_election_provider_support::{
- bounds::{CountBound, ElectionBounds, ElectionBoundsBuilder, SizeBound},
- BoundedSupportsOf, DataProviderBounds, ElectionDataProvider, ElectionProvider,
- ElectionProviderBase, InstantElectionProvider, NposSolution,
+ bounds::{CountBound, ElectionBounds, SizeBound},
+ BoundedSupports, BoundedSupportsOf, ElectionDataProvider, ElectionProvider,
+ InstantElectionProvider, NposSolution, PageIndex,
};
use frame_support::{
dispatch::DispatchClass,
ensure,
- traits::{Currency, DefensiveResult, Get, OnUnbalanced, ReservableCurrency},
+ traits::{Currency, Get, OnUnbalanced, ReservableCurrency},
weights::Weight,
DefaultNoBound, EqNoBound, PartialEqNoBound,
};
@@ -251,7 +263,7 @@ use sp_arithmetic::{
traits::{CheckedAdd, Zero},
UpperOf,
};
-use sp_npos_elections::{BoundedSupports, ElectionScore, IdentifierT, Supports, VoteWeight};
+use sp_npos_elections::{ElectionScore, IdentifierT, Supports, VoteWeight};
use sp_runtime::{
transaction_validity::{
InvalidTransaction, TransactionPriority, TransactionSource, TransactionValidity,
@@ -270,6 +282,8 @@ mod mock;
#[macro_use]
pub mod helpers;
+/// This pallet only supports a single page election flow.
+pub(crate) const SINGLE_PAGE: u32 = 0;
const LOG_TARGET: &str = "runtime::election-provider";
pub mod migrations;
@@ -287,7 +301,6 @@ pub use weights::WeightInfo;
/// The solution type used by this crate.
pub type SolutionOf<T> = <T as MinerConfig>::Solution;
-
/// The voter index. Derived from [`SolutionOf`].
pub type SolutionVoterIndexOf<T> = <SolutionOf<T> as NposSolution>::VoterIndex;
/// The target index. Derived from [`SolutionOf`].
@@ -295,8 +308,14 @@ pub type SolutionTargetIndexOf<T> = <SolutionOf<T> as NposSolution>::TargetIndex
/// The accuracy of the election, when submitted from offchain. Derived from [`SolutionOf`].
pub type SolutionAccuracyOf<T> =
<SolutionOf<<T as crate::Config>::MinerConfig> as NposSolution>::Accuracy;
+/// A ready solution parameterized with this pallet's miner config.
+pub type ReadySolutionOf<T> = ReadySolution<
+ <T as MinerConfig>::AccountId,
+ <T as MinerConfig>::MaxWinners,
+ <T as MinerConfig>::MaxBackersPerWinner,
+>;
/// The fallback election type.
-pub type FallbackErrorOf<T> = <<T as crate::Config>::Fallback as ElectionProviderBase>::Error;
+pub type FallbackErrorOf<T> = <<T as crate::Config>::Fallback as ElectionProvider>::Error;
/// Configuration for the benchmarks of the pallet.
pub trait BenchmarkingConfig {
@@ -433,17 +452,18 @@ impl<C: Default> Default for RawSolution<C> {
DefaultNoBound,
scale_info::TypeInfo,
)]
-#[scale_info(skip_type_params(AccountId, MaxWinners))]
-pub struct ReadySolution<AccountId, MaxWinners>
+#[scale_info(skip_type_params(AccountId, MaxWinners, MaxBackersPerWinner))]
+pub struct ReadySolution<AccountId, MaxWinners, MaxBackersPerWinner>
where
AccountId: IdentifierT,
MaxWinners: Get<u32>,
+ MaxBackersPerWinner: Get<u32>,
{
/// The final supports of the solution.
///
/// This is target-major vector, storing each winners, total backing, and each individual
/// backer.
- pub supports: BoundedSupports<AccountId, MaxWinners>,
+ pub supports: BoundedSupports<AccountId, MaxWinners, MaxBackersPerWinner>,
/// The score of the solution.
///
/// This is needed to potentially challenge the solution.
@@ -494,13 +514,15 @@ pub enum ElectionError<T: Config> {
DataProvider(&'static str),
/// An error nested in the fallback.
Fallback(FallbackErrorOf<T>),
+ /// An error occurred when requesting an election result. The caller expects a multi-paged
+ /// election, which this pallet does not support.
+ MultiPageNotSupported,
/// No solution has been queued.
NothingQueued,
}
// NOTE: we have to do this manually because of the additional where clause needed on
// `FallbackErrorOf<T>`.
-#[cfg(test)]
impl<T: Config> PartialEq for ElectionError<T>
where
FallbackErrorOf<T>: PartialEq,
@@ -512,6 +534,7 @@ where
(Miner(x), Miner(y)) if x == y => true,
(DataProvider(x), DataProvider(y)) if x == y => true,
(Fallback(x), Fallback(y)) if x == y => true,
+ (MultiPageNotSupported, MultiPageNotSupported) => true,
_ => false,
}
}
@@ -616,6 +639,7 @@ pub mod pallet {
AccountId = Self::AccountId,
MaxVotesPerVoter = <Self::DataProvider as ElectionDataProvider>::MaxVotesPerVoter,
MaxWinners = Self::MaxWinners,
+ MaxBackersPerWinner = Self::MaxBackersPerWinner,
>;
/// Maximum number of signed submissions that can be queued.
@@ -652,20 +676,23 @@ pub mod pallet {
#[pallet::constant]
type SignedDepositWeight: Get<BalanceOf<Self>>;
- /// The maximum number of winners that can be elected by this `ElectionProvider`
- /// implementation.
+ /// Maximum number of winners that an election supports.
///
/// Note: This must always be greater or equal to `T::DataProvider::desired_targets()`.
#[pallet::constant]
type MaxWinners: Get<u32>;
+ /// Maximum number of voters that can support a winner in an election solution.
+ ///
+ /// This is needed to ensure election computation is bounded.
+ #[pallet::constant]
+ type MaxBackersPerWinner: Get<u32>;
+
/// Something that calculates the signed deposit base based on the signed submissions queue
/// size.
type SignedDepositBase: Convert<usize, BalanceOf<Self>>;
/// The maximum number of electing voters and electable targets to put in the snapshot.
- /// At the moment, snapshots are only over a single block, but once multi-block elections
- /// are introduced they will take place over multiple blocks.
type ElectionBounds: Get<ElectionBounds>;
/// Handler for the slashed deposits.
@@ -685,7 +712,8 @@ pub mod pallet {
AccountId = Self::AccountId,
BlockNumber = BlockNumberFor<Self>,
DataProvider = Self::DataProvider,
- MaxWinners = Self::MaxWinners,
+ MaxBackersPerWinner = Self::MaxBackersPerWinner,
+ MaxWinnersPerPage = Self::MaxWinners,
>;
/// Configuration of the governance-only fallback.
@@ -696,7 +724,8 @@ pub mod pallet {
AccountId = Self::AccountId,
BlockNumber = BlockNumberFor<Self>,
DataProvider = Self::DataProvider,
- MaxWinners = Self::MaxWinners,
+ MaxWinnersPerPage = Self::MaxWinners,
+ MaxBackersPerWinner = Self::MaxBackersPerWinner,
>;
/// OCW election solution miner algorithm implementation.
@@ -750,9 +779,10 @@ pub mod pallet {
log!(
trace,
- "current phase {:?}, next election {:?}, metadata: {:?}",
+ "current phase {:?}, next election {:?}, queued? {:?}, metadata: {:?}",
current_phase,
next_election,
+ QueuedSolution::<T>::get().map(|rs| (rs.supports.len(), rs.compute, rs.score)),
SnapshotMetadata::<T>::get()
);
match current_phase {
@@ -978,8 +1008,9 @@ pub mod pallet {
T::ForceOrigin::ensure_origin(origin)?;
ensure!(CurrentPhase::<T>::get().is_emergency(), Error::<T>::CallNotAllowed);
- // bound supports with T::MaxWinners
- let supports = supports.try_into().map_err(|_| Error::<T>::TooManyWinners)?;
+ // bound supports with T::MaxWinners.
+ let supports: BoundedSupportsOf<Self> =
+ supports.try_into().map_err(|_| Error::<T>::TooManyWinners)?;
// Note: we don't `rotate_round` at this point; the next call to
// `ElectionProvider::elect` will succeed and take care of that.
@@ -1082,35 +1113,21 @@ pub mod pallet {
/// calling [`Call::set_emergency_election_result`].
#[pallet::call_index(4)]
#[pallet::weight(T::DbWeight::get().reads_writes(1, 1))]
- pub fn governance_fallback(
- origin: OriginFor<T>,
- maybe_max_voters: Option<u32>,
- maybe_max_targets: Option<u32>,
- ) -> DispatchResult {
+ pub fn governance_fallback(origin: OriginFor<T>) -> DispatchResult {
T::ForceOrigin::ensure_origin(origin)?;
ensure!(CurrentPhase::<T>::get().is_emergency(), Error::<T>::CallNotAllowed);
- let election_bounds = ElectionBoundsBuilder::default()
- .voters_count(maybe_max_voters.unwrap_or(u32::MAX).into())
- .targets_count(maybe_max_targets.unwrap_or(u32::MAX).into())
- .build();
+ let RoundSnapshot { voters, targets } =
+ Snapshot::<T>::get().ok_or(Error::<T>::MissingSnapshotMetadata)?;
+ let desired_targets =
+ DesiredTargets::<T>::get().ok_or(Error::<T>::MissingSnapshotMetadata)?;
- let supports = T::GovernanceFallback::instant_elect(
- election_bounds.voters,
- election_bounds.targets,
- )
- .map_err(|e| {
+ let supports = T::GovernanceFallback::instant_elect(voters, targets, desired_targets)
+ .map_err(|e| {
log!(error, "GovernanceFallback failed: {:?}", e);
Error::<T>::FallbackFailed
})?;
- // transform BoundedVec<_, T::GovernanceFallback::MaxWinners> into
- // `BoundedVec<_, T::MaxWinners>`
- let supports: BoundedVec<_, T::MaxWinners> = supports
- .into_inner()
- .try_into()
- .defensive_map_err(|_| Error::<T>::BoundNotMet)?;
-
let solution = ReadySolution {
supports,
score: Default::default(),
@@ -1265,8 +1282,7 @@ pub mod pallet {
///
/// Always sorted by score.
#[pallet::storage]
- pub type QueuedSolution<T: Config> =
- StorageValue<_, ReadySolution<T::AccountId, T::MaxWinners>>;
+ pub type QueuedSolution<T: Config> = StorageValue<_, ReadySolutionOf<T::MinerConfig>>;
/// Snapshot data of the round.
///
@@ -1398,7 +1414,7 @@ impl<T: Config> Pallet<T> {
/// Current best solution, signed or unsigned, queued to be returned upon `elect`.
///
/// Always sorted by score.
- pub fn queued_solution() -> Option<ReadySolution<T::AccountId, T::MaxWinners>> {
+ pub fn queued_solution() -> Option<ReadySolutionOf<T::MinerConfig>> {
QueuedSolution::<T>::get()
}
@@ -1504,11 +1520,12 @@ impl<T: Config> Pallet<T> {
/// Parts of [`create_snapshot`] that happen outside of this pallet.
///
/// Extracted for easier weight calculation.
+ ///
+ /// Note: this pallet only supports one page of voter and target snapshots.
fn create_snapshot_external(
) -> Result<(Vec<T::AccountId>, Vec<VoterOf<T>>, u32), ElectionError<T>> {
let election_bounds = T::ElectionBounds::get();
-
- let targets = T::DataProvider::electable_targets(election_bounds.targets)
+ let targets = T::DataProvider::electable_targets_stateless(election_bounds.targets)
.and_then(|t| {
election_bounds.ensure_targets_limits(
CountBound(t.len() as u32),
@@ -1518,7 +1535,7 @@ impl<T: Config> Pallet<T> {
})
.map_err(ElectionError::DataProvider)?;
- let voters = T::DataProvider::electing_voters(election_bounds.voters)
+ let voters = T::DataProvider::electing_voters_stateless(election_bounds.voters)
.and_then(|v| {
election_bounds.ensure_voters_limits(
CountBound(v.len() as u32),
@@ -1528,7 +1545,7 @@ impl<T: Config> Pallet<T> {
})
.map_err(ElectionError::DataProvider)?;
- let mut desired_targets = <Pallet<T> as ElectionProviderBase>::desired_targets_checked()
+ let mut desired_targets = <Pallet<T> as ElectionProvider>::desired_targets_checked()
.map_err(|e| ElectionError::DataProvider(e))?;
// If `desired_targets` > `targets.len()`, cap `desired_targets` to that level and emit a
@@ -1583,7 +1600,7 @@ impl<T: Config> Pallet<T> {
pub fn feasibility_check(
raw_solution: RawSolution<SolutionOf<T::MinerConfig>>,
compute: ElectionCompute,
- ) -> Result<ReadySolution<T::AccountId, T::MaxWinners>, FeasibilityError> {
+ ) -> Result<ReadySolutionOf<T::MinerConfig>, FeasibilityError> {
let desired_targets =
DesiredTargets::<T>::get().ok_or(FeasibilityError::SnapshotUnavailable)?;
@@ -1630,40 +1647,42 @@ impl<T: Config> Pallet<T> {
QueuedSolution::<T>::take()
.ok_or(ElectionError::<T>::NothingQueued)
.or_else(|_| {
- // default data provider bounds are unbounded. calling `instant_elect` with
- // unbounded data provider bounds means that the on-chain `T:Bounds` configs will
- // *not* be overwritten.
- T::Fallback::instant_elect(
- DataProviderBounds::default(),
- DataProviderBounds::default(),
- )
- .map_err(|fe| ElectionError::Fallback(fe))
- .and_then(|supports| {
- Ok(ReadySolution {
- supports,
- score: Default::default(),
- compute: ElectionCompute::Fallback,
+ log!(warn, "No solution queued, falling back to instant fallback.",);
+ let (voters, targets, desired_targets) = if T::Fallback::bother() {
+ let RoundSnapshot { voters, targets } = Snapshot::<T>::get().ok_or(
+ ElectionError::<T>::Feasibility(FeasibilityError::SnapshotUnavailable),
+ )?;
+ let desired_targets = DesiredTargets::<T>::get().ok_or(
+ ElectionError::<T>::Feasibility(FeasibilityError::SnapshotUnavailable),
+ )?;
+ (voters, targets, desired_targets)
+ } else {
+ (Default::default(), Default::default(), Default::default())
+ };
+ T::Fallback::instant_elect(voters, targets, desired_targets)
+ .map_err(|fe| ElectionError::Fallback(fe))
+ .and_then(|supports| {
+ Ok(ReadySolution {
+ supports,
+ score: Default::default(),
+ compute: ElectionCompute::Fallback,
+ })
})
- })
})
.map(|ReadySolution { compute, score, supports }| {
Self::deposit_event(Event::ElectionFinalized { compute, score });
- if Round::<T>::get() != 1 {
- log!(info, "Finalized election round with compute {:?}.", compute);
- }
+ log!(info, "Finalized election round with compute {:?}.", compute);
supports
})
.map_err(|err| {
Self::deposit_event(Event::ElectionFailed);
- if Round::<T>::get() != 1 {
- log!(warn, "Failed to finalize election round. reason {:?}", err);
- }
+ log!(warn, "Failed to finalize election round. reason {:?}", err);
err
})
}
/// record the weight of the given `supports`.
- fn weigh_supports(supports: &Supports<T::AccountId>) {
+ fn weigh_supports(supports: &BoundedSupportsOf<Self>) {
let active_voters = supports
.iter()
.map(|(_, x)| x)
@@ -1755,35 +1774,41 @@ impl<T: Config> Pallet<T> {
}
}
-impl<T: Config> ElectionProviderBase for Pallet<T> {
+impl<T: Config> ElectionProvider for Pallet<T> {
type AccountId = T::AccountId;
type BlockNumber = BlockNumberFor<T>;
type Error = ElectionError<T>;
- type MaxWinners = T::MaxWinners;
+ type MaxWinnersPerPage = T::MaxWinners;
+ type MaxBackersPerWinner = T::MaxBackersPerWinner;
+ type Pages = sp_core::ConstU32<1>;
type DataProvider = T::DataProvider;
-}
-impl<T: Config> ElectionProvider for Pallet<T> {
- fn ongoing() -> bool {
- match CurrentPhase::<T>::get() {
- Phase::Off => false,
- _ => true,
- }
- }
+ fn elect(page: PageIndex) -> Result<BoundedSupportsOf<Self>, Self::Error> {
+ // Note: this pallet **MUST** only by used in the single-page mode.
+ ensure!(page == SINGLE_PAGE, ElectionError::<T>::MultiPageNotSupported);
- fn elect() -> Result<BoundedSupportsOf<Self>, Self::Error> {
- match Self::do_elect() {
- Ok(supports) => {
+ let res = match Self::do_elect() {
+ Ok(bounded_supports) => {
// All went okay, record the weight, put sign to be Off, clean snapshot, etc.
- Self::weigh_supports(&supports);
+ Self::weigh_supports(&bounded_supports);
Self::rotate_round();
- Ok(supports)
+ Ok(bounded_supports)
},
Err(why) => {
log!(error, "Entering emergency mode: {:?}", why);
Self::phase_transition(Phase::Emergency);
Err(why)
},
+ };
+
+ log!(info, "ElectionProvider::elect({}) => {:?}", page, res.as_ref().map(|s| s.len()));
+ res
+ }
+
+ fn ongoing() -> bool {
+ match CurrentPhase::<T>::get() {
+ Phase::Off => false,
+ _ => true,
}
}
}
@@ -1803,7 +1828,6 @@ mod feasibility_check {
//! All of the tests here should be dedicated to only testing the feasibility check and nothing
//! more. The best way to audit and review these tests is to try and come up with a solution
//! that is invalid, but gets through the system as valid.
-
use super::*;
use crate::mock::{
raw_solution, roll_to, EpochLength, ExtBuilder, MultiPhase, Runtime, SignedPhase,
@@ -2007,6 +2031,7 @@ mod tests {
},
Phase,
};
+ use frame_election_provider_support::bounds::ElectionBoundsBuilder;
use frame_support::{assert_noop, assert_ok};
use sp_npos_elections::{BalancingConfig, Support};
@@ -2068,7 +2093,7 @@ mod tests {
assert_eq!(CurrentPhase::<Runtime>::get(), Phase::Unsigned((true, 25)));
assert!(Snapshot::<Runtime>::get().is_some());
- assert_ok!(MultiPhase::elect());
+ assert_ok!(MultiPhase::elect(SINGLE_PAGE));
assert!(CurrentPhase::<Runtime>::get().is_off());
assert!(Snapshot::<Runtime>::get().is_none());
@@ -2132,7 +2157,7 @@ mod tests {
roll_to(30);
assert!(CurrentPhase::<Runtime>::get().is_unsigned_open_at(20));
- assert_ok!(MultiPhase::elect());
+ assert_ok!(MultiPhase::elect(SINGLE_PAGE));
assert!(CurrentPhase::<Runtime>::get().is_off());
assert!(Snapshot::<Runtime>::get().is_none());
@@ -2179,7 +2204,7 @@ mod tests {
roll_to(30);
assert!(CurrentPhase::<Runtime>::get().is_signed());
- assert_ok!(MultiPhase::elect());
+ assert_ok!(MultiPhase::elect(SINGLE_PAGE));
assert!(CurrentPhase::<Runtime>::get().is_off());
assert!(Snapshot::<Runtime>::get().is_none());
@@ -2217,23 +2242,20 @@ mod tests {
roll_to(30);
assert!(CurrentPhase::<Runtime>::get().is_off());
- // This module is now only capable of doing on-chain backup.
- assert_ok!(MultiPhase::elect());
+ // This module is now cannot even do onchain fallback, as no snapshot is there
+ assert_eq!(
+ MultiPhase::elect(SINGLE_PAGE),
+ Err(ElectionError::<Runtime>::Feasibility(FeasibilityError::SnapshotUnavailable))
+ );
- assert!(CurrentPhase::<Runtime>::get().is_off());
+ // this puts us in emergency now.
+ assert!(CurrentPhase::<Runtime>::get().is_emergency());
assert_eq!(
multi_phase_events(),
vec![
- Event::ElectionFinalized {
- compute: ElectionCompute::Fallback,
- score: ElectionScore {
- minimal_stake: 0,
- sum_stake: 0,
- sum_stake_squared: 0
- }
- },
- Event::PhaseTransitioned { from: Phase::Off, to: Phase::Off, round: 2 },
+ Event::ElectionFailed,
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Emergency, round: 1 }
]
);
});
@@ -2254,7 +2276,7 @@ mod tests {
assert_eq!(Round::<Runtime>::get(), 1);
// An unexpected call to elect.
- assert_ok!(MultiPhase::elect());
+ assert_ok!(MultiPhase::elect(SINGLE_PAGE));
// We surely can't have any feasible solutions. This will cause an on-chain election.
assert_eq!(
@@ -2305,7 +2327,7 @@ mod tests {
}
// an unexpected call to elect.
- assert_ok!(MultiPhase::elect());
+ assert_ok!(MultiPhase::elect(SINGLE_PAGE));
// all storage items must be cleared.
assert_eq!(Round::<Runtime>::get(), 2);
@@ -2376,7 +2398,7 @@ mod tests {
));
roll_to(30);
- assert_ok!(MultiPhase::elect());
+ assert_ok!(MultiPhase::elect(SINGLE_PAGE));
assert_eq!(
multi_phase_events(),
@@ -2433,7 +2455,7 @@ mod tests {
));
assert!(QueuedSolution::<Runtime>::get().is_some());
- assert_ok!(MultiPhase::elect());
+ assert_ok!(MultiPhase::elect(SINGLE_PAGE));
assert_eq!(
multi_phase_events(),
@@ -2467,6 +2489,35 @@ mod tests {
})
}
+ #[test]
+ fn try_elect_multi_page_fails() {
+ let prepare_election = || {
+ roll_to_signed();
+ assert!(Snapshot::<Runtime>::get().is_some());
+
+ // submit solution and assert it is queued and ready for elect to be called.
+ let (solution, _, _) = MultiPhase::mine_solution().unwrap();
+ assert_ok!(MultiPhase::submit(
+ crate::mock::RuntimeOrigin::signed(99),
+ Box::new(solution),
+ ));
+ roll_to(30);
+ assert!(QueuedSolution::<Runtime>::get().is_some());
+ };
+
+ ExtBuilder::default().onchain_fallback(false).build_and_execute(|| {
+ prepare_election();
+ // single page elect call works as expected.
+ assert_ok!(MultiPhase::elect(SINGLE_PAGE));
+ });
+
+ ExtBuilder::default().onchain_fallback(false).build_and_execute(|| {
+ prepare_election();
+ // multi page calls will fail with multipage not supported error.
+ assert_noop!(MultiPhase::elect(SINGLE_PAGE + 1), ElectionError::MultiPageNotSupported);
+ })
+ }
+
#[test]
fn fallback_strategy_works() {
ExtBuilder::default().onchain_fallback(true).build_and_execute(|| {
@@ -2475,15 +2526,16 @@ mod tests {
// Zilch solutions thus far, but we get a result.
assert!(QueuedSolution::<Runtime>::get().is_none());
- let supports = MultiPhase::elect().unwrap();
+ let supports = MultiPhase::elect(SINGLE_PAGE).unwrap();
- assert_eq!(
- supports,
- vec![
- (30, Support { total: 40, voters: vec![(2, 5), (4, 5), (30, 30)] }),
- (40, Support { total: 60, voters: vec![(2, 5), (3, 10), (4, 5), (40, 40)] })
- ]
- );
+ let expected_supports = vec![
+ (30, Support { total: 40, voters: vec![(2, 5), (4, 5), (30, 30)] }),
+ (40, Support { total: 60, voters: vec![(2, 5), (3, 10), (4, 5), (40, 40)] }),
+ ]
+ .try_into()
+ .unwrap();
+
+ assert_eq!(supports, expected_supports);
assert_eq!(
multi_phase_events(),
@@ -2517,7 +2569,10 @@ mod tests {
// Zilch solutions thus far.
assert!(QueuedSolution::<Runtime>::get().is_none());
- assert_eq!(MultiPhase::elect().unwrap_err(), ElectionError::Fallback("NoFallback."));
+ assert_eq!(
+ MultiPhase::elect(SINGLE_PAGE).unwrap_err(),
+ ElectionError::Fallback("NoFallback.")
+ );
// phase is now emergency.
assert_eq!(CurrentPhase::<Runtime>::get(), Phase::Emergency);
// snapshot is still there until election finalizes.
@@ -2551,7 +2606,10 @@ mod tests {
// Zilch solutions thus far.
assert!(QueuedSolution::<Runtime>::get().is_none());
- assert_eq!(MultiPhase::elect().unwrap_err(), ElectionError::Fallback("NoFallback."));
+ assert_eq!(
+ MultiPhase::elect(SINGLE_PAGE).unwrap_err(),
+ ElectionError::Fallback("NoFallback.")
+ );
// phase is now emergency.
assert_eq!(CurrentPhase::<Runtime>::get(), Phase::Emergency);
@@ -2560,16 +2618,16 @@ mod tests {
// no single account can trigger this
assert_noop!(
- MultiPhase::governance_fallback(RuntimeOrigin::signed(99), None, None),
+ MultiPhase::governance_fallback(RuntimeOrigin::signed(99)),
DispatchError::BadOrigin
);
// only root can
- assert_ok!(MultiPhase::governance_fallback(RuntimeOrigin::root(), None, None));
+ assert_ok!(MultiPhase::governance_fallback(RuntimeOrigin::root()));
// something is queued now
assert!(QueuedSolution::<Runtime>::get().is_some());
// next election call with fix everything.;
- assert!(MultiPhase::elect().is_ok());
+ assert!(MultiPhase::elect(SINGLE_PAGE).is_ok());
assert_eq!(CurrentPhase::<Runtime>::get(), Phase::Off);
assert_eq!(
@@ -2620,22 +2678,17 @@ mod tests {
roll_to(25);
assert_eq!(CurrentPhase::<Runtime>::get(), Phase::Off);
- // On-chain backup works though.
- let supports = MultiPhase::elect().unwrap();
- assert!(supports.len() > 0);
+ // On-chain backup will fail similarly.
+ assert_eq!(
+ MultiPhase::elect(SINGLE_PAGE).unwrap_err(),
+ ElectionError::<Runtime>::Feasibility(FeasibilityError::SnapshotUnavailable)
+ );
assert_eq!(
multi_phase_events(),
vec![
- Event::ElectionFinalized {
- compute: ElectionCompute::Fallback,
- score: ElectionScore {
- minimal_stake: 0,
- sum_stake: 0,
- sum_stake_squared: 0
- }
- },
- Event::PhaseTransitioned { from: Phase::Off, to: Phase::Off, round: 2 },
+ Event::ElectionFailed,
+ Event::PhaseTransitioned { from: Phase::Off, to: Phase::Emergency, round: 1 },
]
);
});
@@ -2660,7 +2713,7 @@ mod tests {
assert_eq!(CurrentPhase::<Runtime>::get(), Phase::Off);
roll_to(29);
- let err = MultiPhase::elect().unwrap_err();
+ let err = MultiPhase::elect(SINGLE_PAGE).unwrap_err();
assert_eq!(err, ElectionError::Fallback("NoFallback."));
assert_eq!(CurrentPhase::<Runtime>::get(), Phase::Emergency);
diff --git a/substrate/frame/election-provider-multi-phase/src/mock.rs b/substrate/frame/election-provider-multi-phase/src/mock.rs
index d0797e100fc..d244af0b403 100644
--- a/substrate/frame/election-provider-multi-phase/src/mock.rs
+++ b/substrate/frame/election-provider-multi-phase/src/mock.rs
@@ -18,7 +18,7 @@
use super::*;
use crate::{self as multi_phase, signed::GeometricDepositBase, unsigned::MinerConfig};
use frame_election_provider_support::{
- bounds::{DataProviderBounds, ElectionBounds},
+ bounds::{DataProviderBounds, ElectionBounds, ElectionBoundsBuilder},
data_provider, onchain, ElectionDataProvider, NposSolution, SequentialPhragmen,
};
pub use frame_support::derive_impl;
@@ -35,7 +35,7 @@ use sp_core::{
testing::{PoolState, TestOffchainExt, TestTransactionPoolExt},
OffchainDbExt, OffchainWorkerExt, TransactionPoolExt,
},
- H256,
+ ConstBool, H256,
};
use sp_npos_elections::{
assignment_ratio_to_staked_normalized, seq_phragmen, to_supports, BalancingConfig,
@@ -116,7 +116,7 @@ pub fn roll_to_round(n: u32) {
while Round::<Runtime>::get() != n {
roll_to_signed();
- frame_support::assert_ok!(MultiPhase::elect());
+ frame_support::assert_ok!(MultiPhase::elect(Zero::zero()));
}
}
@@ -296,6 +296,8 @@ parameter_types! {
#[derive(Debug)]
pub static MaxWinners: u32 = 200;
+ #[derive(Debug)]
+ pub static MaxBackersPerWinner: u32 = 200;
// `ElectionBounds` and `OnChainElectionsBounds` are defined separately to set them independently in the tests.
pub static ElectionsBounds: ElectionBounds = ElectionBoundsBuilder::default().build();
pub static OnChainElectionsBounds: ElectionBounds = ElectionBoundsBuilder::default().build();
@@ -309,34 +311,52 @@ impl onchain::Config for OnChainSeqPhragmen {
type Solver = SequentialPhragmen<AccountId, SolutionAccuracyOf<Runtime>, Balancing>;
type DataProvider = StakingMock;
type WeightInfo = ();
- type MaxWinners = MaxWinners;
+ type MaxWinnersPerPage = MaxWinners;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
+ type Sort = ConstBool<true>;
type Bounds = OnChainElectionsBounds;
}
pub struct MockFallback;
-impl ElectionProviderBase for MockFallback {
- type BlockNumber = BlockNumber;
+impl ElectionProvider for MockFallback {
type AccountId = AccountId;
+ type BlockNumber = BlockNumber;
type Error = &'static str;
+ type MaxWinnersPerPage = MaxWinners;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
+ type Pages = ConstU32<1>;
type DataProvider = StakingMock;
- type MaxWinners = MaxWinners;
+
+ fn elect(_remaining: PageIndex) -> Result<BoundedSupportsOf<Self>, Self::Error> {
+ unimplemented!()
+ }
+
+ fn ongoing() -> bool {
+ false
+ }
}
impl InstantElectionProvider for MockFallback {
fn instant_elect(
- voters_bounds: DataProviderBounds,
- targets_bounds: DataProviderBounds,
+ voters: Vec<VoterOf<Runtime>>,
+ targets: Vec<AccountId>,
+ desired_targets: u32,
) -> Result<BoundedSupportsOf<Self>, Self::Error> {
if OnChainFallback::get() {
onchain::OnChainExecution::<OnChainSeqPhragmen>::instant_elect(
- voters_bounds,
- targets_bounds,
+ voters,
+ targets,
+ desired_targets,
)
.map_err(|_| "onchain::OnChainExecution failed.")
} else {
Err("NoFallback.")
}
}
+
+ fn bother() -> bool {
+ OnChainFallback::get()
+ }
}
parameter_types! {
@@ -362,6 +382,7 @@ impl MinerConfig for Runtime {
type MaxWeight = MinerMaxWeight;
type MaxVotesPerVoter = <StakingMock as ElectionDataProvider>::MaxVotesPerVoter;
type MaxWinners = MaxWinners;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
type Solution = TestNposSolution;
fn solution_weight(v: u32, t: u32, a: u32, d: u32) -> Weight {
@@ -404,6 +425,7 @@ impl crate::Config for Runtime {
frame_election_provider_support::onchain::OnChainExecution<OnChainSeqPhragmen>;
type ForceOrigin = frame_system::EnsureRoot<AccountId>;
type MaxWinners = MaxWinners;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
type MinerConfig = Self;
type Solver = SequentialPhragmen<AccountId, SolutionAccuracyOf<Runtime>, Balancing>;
type ElectionBounds = ElectionsBounds;
@@ -455,7 +477,12 @@ impl ElectionDataProvider for StakingMock {
type AccountId = AccountId;
type MaxVotesPerVoter = MaxNominations;
- fn electable_targets(bounds: DataProviderBounds) -> data_provider::Result<Vec<AccountId>> {
+ fn electable_targets(
+ bounds: DataProviderBounds,
+ remaining_pages: PageIndex,
+ ) -> data_provider::Result<Vec<AccountId>> {
+ assert!(remaining_pages.is_zero());
+
let targets = Targets::get();
if !DataProviderAllowBadData::get() &&
@@ -467,7 +494,12 @@ impl ElectionDataProvider for StakingMock {
Ok(targets)
}
- fn electing_voters(bounds: DataProviderBounds) -> data_provider::Result<Vec<VoterOf<Runtime>>> {
+ fn electing_voters(
+ bounds: DataProviderBounds,
+ remaining_pages: PageIndex,
+ ) -> data_provider::Result<Vec<VoterOf<Runtime>>> {
+ assert!(remaining_pages.is_zero());
+
let mut voters = Voters::get();
if !DataProviderAllowBadData::get() {
@@ -582,6 +614,10 @@ impl ExtBuilder {
<SignedMaxWeight>::set(weight);
self
}
+ pub fn max_backers_per_winner(self, max: u32) -> Self {
+ MaxBackersPerWinner::set(max);
+ self
+ }
pub fn build(self) -> sp_io::TestExternalities {
sp_tracing::try_init_simple();
let mut storage =
diff --git a/substrate/frame/election-provider-multi-phase/src/signed.rs b/substrate/frame/election-provider-multi-phase/src/signed.rs
index c685791bbdd..5efe848c0e6 100644
--- a/substrate/frame/election-provider-multi-phase/src/signed.rs
+++ b/substrate/frame/election-provider-multi-phase/src/signed.rs
@@ -21,7 +21,7 @@ use core::marker::PhantomData;
use crate::{
unsigned::MinerConfig, Config, ElectionCompute, Pallet, QueuedSolution, RawSolution,
- ReadySolution, SignedSubmissionIndices, SignedSubmissionNextIndex, SignedSubmissionsMap,
+ ReadySolutionOf, SignedSubmissionIndices, SignedSubmissionNextIndex, SignedSubmissionsMap,
SnapshotMetadata, SolutionOf, SolutionOrSnapshotSize, Weight, WeightInfo,
};
use alloc::{
@@ -490,7 +490,7 @@ impl<T: Config> Pallet<T> {
///
/// Infallible
pub fn finalize_signed_phase_accept_solution(
- ready_solution: ReadySolution<T::AccountId, T::MaxWinners>,
+ ready_solution: ReadySolutionOf<T::MinerConfig>,
who: &T::AccountId,
deposit: BalanceOf<T>,
call_fee: BalanceOf<T>,
@@ -566,9 +566,9 @@ impl<T: Config> Pallet<T> {
mod tests {
use super::*;
use crate::{
- mock::*, CurrentPhase, ElectionBoundsBuilder, ElectionCompute, ElectionError, Error, Event,
- Perbill, Phase, Round,
+ mock::*, CurrentPhase, ElectionCompute, ElectionError, Error, Event, Perbill, Phase, Round,
};
+ use frame_election_provider_support::bounds::ElectionBoundsBuilder;
use frame_support::{assert_noop, assert_ok, assert_storage_noop};
use sp_runtime::Percent;
diff --git a/substrate/frame/election-provider-multi-phase/src/unsigned.rs b/substrate/frame/election-provider-multi-phase/src/unsigned.rs
index 191131ed3ac..5aabc3454d4 100644
--- a/substrate/frame/election-provider-multi-phase/src/unsigned.rs
+++ b/substrate/frame/election-provider-multi-phase/src/unsigned.rs
@@ -19,8 +19,8 @@
use crate::{
helpers, Call, Config, CurrentPhase, DesiredTargets, ElectionCompute, Error, FeasibilityError,
- Pallet, QueuedSolution, RawSolution, ReadySolution, Round, RoundSnapshot, Snapshot,
- SolutionAccuracyOf, SolutionOf, SolutionOrSnapshotSize, Weight,
+ Pallet, QueuedSolution, RawSolution, ReadySolution, ReadySolutionOf, Round, RoundSnapshot,
+ Snapshot, SolutionAccuracyOf, SolutionOf, SolutionOrSnapshotSize, Weight,
};
use alloc::{boxed::Box, vec::Vec};
use codec::Encode;
@@ -98,6 +98,8 @@ pub enum MinerError {
NoMoreVoters,
/// An error from the solver.
Solver,
+ /// Desired targets are mire than the maximum allowed winners.
+ TooManyDesiredTargets,
}
impl From<sp_npos_elections::Error> for MinerError {
@@ -112,16 +114,20 @@ impl From<FeasibilityError> for MinerError {
}
}
-/// Reports the trimming result of a mined solution
+/// Reports the trimming result of a mined solution.
#[derive(Debug, Clone)]
pub struct TrimmingStatus {
+ /// Number of voters trimmed due to the solution weight limits.
weight: usize,
+ /// Number of voters trimmed due to the solution length limits.
length: usize,
+ /// Number of edges (voter -> target) trimmed due to the max backers per winner bound.
+ edges: usize,
}
impl TrimmingStatus {
pub fn is_trimmed(&self) -> bool {
- self.weight > 0 || self.length > 0
+ self.weight > 0 || self.length > 0 || self.edges > 0
}
pub fn trimmed_weight(&self) -> usize {
@@ -131,6 +137,10 @@ impl TrimmingStatus {
pub fn trimmed_length(&self) -> usize {
self.length
}
+
+ pub fn trimmed_edges(&self) -> usize {
+ self.edges
+ }
}
/// Save a given call into OCW storage.
@@ -194,6 +204,7 @@ impl<T: Config + CreateInherent<Call<T>>> Pallet<T> {
let RoundSnapshot { voters, targets } =
Snapshot::<T>::get().ok_or(MinerError::SnapshotUnAvailable)?;
let desired_targets = DesiredTargets::<T>::get().ok_or(MinerError::SnapshotUnAvailable)?;
+ ensure!(desired_targets <= T::MaxWinners::get(), MinerError::TooManyDesiredTargets);
let (solution, score, size, is_trimmed) =
Miner::<T::MinerConfig>::mine_solution_with_snapshot::<T::Solver>(
voters,
@@ -262,16 +273,17 @@ impl<T: Config + CreateInherent<Call<T>>> Pallet<T> {
/// Mine a new solution as a call. Performs all checks.
pub fn mine_checked_call() -> Result<Call<T>, MinerError> {
// get the solution, with a load of checks to ensure if submitted, IT IS ABSOLUTELY VALID.
- let (raw_solution, witness, _) = Self::mine_and_check()?;
+ let (raw_solution, witness, _trimming) = Self::mine_and_check()?;
let score = raw_solution.score;
let call: Call<T> = Call::submit_unsigned { raw_solution: Box::new(raw_solution), witness };
log!(
debug,
- "mined a solution with score {:?} and size {}",
+ "mined a solution with score {:?} and size {} and trimming {:?}",
score,
- call.using_encoded(|b| b.len())
+ call.using_encoded(|b| b.len()),
+ _trimming
);
Ok(call)
@@ -393,7 +405,7 @@ impl<T: Config + CreateInherent<Call<T>>> Pallet<T> {
// ensure score is being improved. Panic henceforth.
ensure!(
QueuedSolution::<T>::get()
- .map_or(true, |q: ReadySolution<_, _>| raw_solution.score > q.score),
+ .map_or(true, |q: ReadySolution<_, _, _>| raw_solution.score > q.score),
Error::<T>::PreDispatchWeakSubmission,
);
@@ -427,8 +439,11 @@ pub trait MinerConfig {
///
/// The weight is computed using `solution_weight`.
type MaxWeight: Get<Weight>;
- /// The maximum number of winners that can be elected.
+ /// The maximum number of winners that can be elected in the single page supported by this
+ /// pallet.
type MaxWinners: Get<u32>;
+ /// The maximum number of backers per winner in the last solution.
+ type MaxBackersPerWinner: Get<u32>;
/// Something that can compute the weight of a solution.
///
/// This weight estimate is then used to trim the solution, based on [`MinerConfig::MaxWeight`].
@@ -490,7 +505,11 @@ impl<T: MinerConfig> Miner<T> {
let ElectionResult { assignments, winners: _ } = election_result;
- // Reduce (requires round-trip to staked form)
+ // keeps track of how many edges were trimmed out.
+ let mut edges_trimmed = 0;
+
+ // Reduce (requires round-trip to staked form) and ensures the max backer per winner bound
+ // requirements are met.
let sorted_assignments = {
// convert to staked and reduce.
let mut staked = assignment_ratio_to_staked_normalized(assignments, &stake_of)?;
@@ -517,6 +536,53 @@ impl<T: MinerConfig> Miner<T> {
},
);
+ // ensures that the max backers per winner bounds are respected given the supports
+ // generated from the assignments. We achieve that by removing edges (voter ->
+ // target) in the assignments with lower stake until the total number of backers per
+ // winner fits within the expected bounded supports. This should be performed *after*
+ // applying reduce over the assignments to avoid over-trimming.
+ //
+ // a potential trimming does not affect the desired targets of the solution as the
+ // targets have *too many* edges by definition if trimmed.
+ let max_backers_per_winner = T::MaxBackersPerWinner::get().saturated_into::<usize>();
+
+ let _ = sp_npos_elections::to_supports(&staked)
+ .iter_mut()
+ .filter(|(_, support)| support.voters.len() > max_backers_per_winner)
+ .for_each(|(target, ref mut support)| {
+ // first sort by support stake, lowest at the tail.
+ support.voters.sort_by(|a, b| b.1.cmp(&a.1));
+
+ // filter out lowest stake edge in this support.
+ // optimization note: collects edge voters to remove from assignments into a
+ // btree set to optimize the search in the next loop.
+ let filtered: alloc::collections::BTreeSet<_> = support
+ .voters
+ .split_off(max_backers_per_winner)
+ .into_iter()
+ .map(|(who, _stake)| who)
+ .collect();
+
+ // remove lowest stake edges calculated above from assignments.
+ staked.iter_mut().for_each(|assignment| {
+ if filtered.contains(&assignment.who) {
+ assignment.distribution.retain(|(t, _)| t != target);
+ }
+ });
+
+ edges_trimmed += filtered.len();
+ });
+
+ debug_assert!({
+ // at this point we expect the supports generated from the assignments to fit within
+ // the expected bounded supports.
+ let expected_ok: Result<
+ crate::BoundedSupports<_, T::MaxWinners, T::MaxBackersPerWinner>,
+ _,
+ > = sp_npos_elections::to_supports(&staked).try_into();
+ expected_ok.is_ok()
+ });
+
// convert back.
assignment_staked_to_ratio_normalized(staked)?
};
@@ -549,7 +615,8 @@ impl<T: MinerConfig> Miner<T> {
// re-calc score.
let score = solution.clone().score(stake_of, voter_at, target_at)?;
- let is_trimmed = TrimmingStatus { weight: weight_trimmed, length: length_trimmed };
+ let is_trimmed =
+ TrimmingStatus { weight: weight_trimmed, length: length_trimmed, edges: edges_trimmed };
Ok((solution, score, size, is_trimmed))
}
@@ -618,7 +685,7 @@ impl<T: MinerConfig> Miner<T> {
let remove = assignments.len().saturating_sub(maximum_allowed_voters);
log_no_system!(
- debug,
+ trace,
"from {} assignments, truncating to {} for length, removing {}",
assignments.len(),
maximum_allowed_voters,
@@ -747,7 +814,7 @@ impl<T: MinerConfig> Miner<T> {
snapshot: RoundSnapshot<T::AccountId, MinerVoterOf<T>>,
current_round: u32,
minimum_untrusted_score: Option<ElectionScore>,
- ) -> Result<ReadySolution<T::AccountId, T::MaxWinners>, FeasibilityError> {
+ ) -> Result<ReadySolutionOf<T>, FeasibilityError> {
let RawSolution { solution, score, round } = raw_solution;
let RoundSnapshot { voters: snapshot_voters, targets: snapshot_targets } = snapshot;
@@ -814,9 +881,12 @@ impl<T: MinerConfig> Miner<T> {
// Finally, check that the claimed score was indeed correct.
let known_score = supports.evaluate();
+
ensure!(known_score == score, FeasibilityError::InvalidScore);
- // Size of winners in miner solution is equal to `desired_targets` <= `MaxWinners`.
+ // Size of winners in miner solution is equal to `desired_targets` <= `MaxWinners`. In
+ // addition, the miner should have ensured that the MaxBackerPerWinner bound in respected,
+ // thus this conversion should not fail.
let supports = supports
.try_into()
.defensive_map_err(|_| FeasibilityError::BoundedConversionFailed)?;
@@ -1862,6 +1932,193 @@ mod tests {
})
}
+ #[test]
+ fn mine_solution_always_respects_max_backers_per_winner() {
+ use crate::mock::MaxBackersPerWinner;
+ use frame_election_provider_support::BoundedSupport;
+
+ let targets = vec![10, 20, 30, 40];
+ let voters = vec![
+ (1, 11, bounded_vec![10, 20, 30]),
+ (2, 12, bounded_vec![10, 20, 30]),
+ (3, 13, bounded_vec![10, 20, 30]),
+ (4, 14, bounded_vec![10, 20, 30]),
+ (5, 15, bounded_vec![10, 20, 40]),
+ ];
+ let snapshot = RoundSnapshot { voters: voters.clone(), targets: targets.clone() };
+ let (round, desired_targets) = (1, 3);
+
+ // election with unbounded max backers per winnner.
+ ExtBuilder::default().max_backers_per_winner(u32::MAX).build_and_execute(|| {
+ assert_eq!(MaxBackersPerWinner::get(), u32::MAX);
+
+ let (solution, expected_score_unbounded, _, trimming_status) =
+ Miner::<Runtime>::mine_solution_with_snapshot::<<Runtime as Config>::Solver>(
+ voters.clone(),
+ targets.clone(),
+ desired_targets,
+ )
+ .unwrap();
+
+ let ready_solution = Miner::<Runtime>::feasibility_check(
+ RawSolution { solution, score: expected_score_unbounded, round },
+ Default::default(),
+ desired_targets,
+ snapshot.clone(),
+ round,
+ Default::default(),
+ )
+ .unwrap();
+
+ assert_eq!(
+ ready_solution.supports.into_iter().collect::<Vec<_>>(),
+ vec![
+ (
+ 10,
+ BoundedSupport { total: 25, voters: bounded_vec![(1, 11), (5, 5), (4, 9)] }
+ ),
+ (20, BoundedSupport { total: 22, voters: bounded_vec![(2, 12), (5, 10)] }),
+ (30, BoundedSupport { total: 18, voters: bounded_vec![(3, 13), (4, 5)] })
+ ]
+ );
+
+ // no trimmed edges.
+ assert_eq!(trimming_status.trimmed_edges(), 0);
+ });
+
+ // election with max 1 backer per winnner.
+ ExtBuilder::default().max_backers_per_winner(1).build_and_execute(|| {
+ assert_eq!(MaxBackersPerWinner::get(), 1);
+
+ let (solution, expected_score_bounded, _, trimming_status) =
+ Miner::<Runtime>::mine_solution_with_snapshot::<<Runtime as Config>::Solver>(
+ voters,
+ targets,
+ desired_targets,
+ )
+ .unwrap();
+
+ let ready_solution = Miner::<Runtime>::feasibility_check(
+ RawSolution { solution, score: expected_score_bounded, round },
+ Default::default(),
+ desired_targets,
+ snapshot,
+ round,
+ Default::default(),
+ )
+ .unwrap();
+
+ for (_, supports) in ready_solution.supports.iter() {
+ assert!((supports.voters.len() as u32) <= MaxBackersPerWinner::get());
+ }
+
+ assert_eq!(
+ ready_solution.supports.into_iter().collect::<Vec<_>>(),
+ vec![
+ (10, BoundedSupport { total: 11, voters: bounded_vec![(1, 11)] }),
+ (20, BoundedSupport { total: 12, voters: bounded_vec![(2, 12)] }),
+ (30, BoundedSupport { total: 13, voters: bounded_vec![(3, 13)] })
+ ]
+ );
+
+ // four trimmed edges.
+ assert_eq!(trimming_status.trimmed_edges(), 4);
+ });
+ }
+
+ #[test]
+ fn max_backers_edges_trims_lowest_stake() {
+ use crate::mock::MaxBackersPerWinner;
+
+ ExtBuilder::default().build_and_execute(|| {
+ let targets = vec![10, 20, 30, 40];
+
+ let voters = vec![
+ (1, 100, bounded_vec![10, 20]),
+ (2, 200, bounded_vec![10, 20, 30]),
+ (3, 300, bounded_vec![10, 30]),
+ (4, 400, bounded_vec![10, 30]),
+ (5, 500, bounded_vec![10, 20, 30]),
+ (6, 600, bounded_vec![10, 20, 30, 40]),
+ ];
+ let snapshot = RoundSnapshot { voters: voters.clone(), targets: targets.clone() };
+ let (round, desired_targets) = (1, 4);
+
+ let max_backers_bound = u32::MAX;
+ let trim_backers_bound = 2;
+
+ // election with unbounded max backers per winnner.
+ MaxBackersPerWinner::set(max_backers_bound);
+ let (solution, score, _, trimming_status) =
+ Miner::<Runtime>::mine_solution_with_snapshot::<<Runtime as Config>::Solver>(
+ voters.clone(),
+ targets.clone(),
+ desired_targets,
+ )
+ .unwrap();
+
+ assert_eq!(trimming_status.trimmed_edges(), 0);
+
+ let ready_solution = Miner::<Runtime>::feasibility_check(
+ RawSolution { solution, score, round },
+ Default::default(),
+ desired_targets,
+ snapshot.clone(),
+ round,
+ Default::default(),
+ )
+ .unwrap();
+
+ let full_supports = ready_solution.supports.into_iter().collect::<Vec<_>>();
+
+ // gather the expected trimmed supports (lowest stake from supports with more backers
+ // than expected when MaxBackersPerWinner is 2) from the full, unbounded supports.
+ let expected_trimmed_supports = full_supports
+ .into_iter()
+ .filter(|(_, s)| s.voters.len() as u32 > trim_backers_bound)
+ .map(|(t, s)| (t, s.voters.into_iter().min_by(|a, b| a.1.cmp(&b.1)).unwrap()))
+ .collect::<Vec<_>>();
+
+ // election with bounded 2 max backers per winnner.
+ MaxBackersPerWinner::set(trim_backers_bound);
+ let (solution, score, _, trimming_status) =
+ Miner::<Runtime>::mine_solution_with_snapshot::<<Runtime as Config>::Solver>(
+ voters.clone(),
+ targets.clone(),
+ desired_targets,
+ )
+ .unwrap();
+
+ assert_eq!(trimming_status.trimmed_edges(), 2);
+
+ let ready_solution = Miner::<Runtime>::feasibility_check(
+ RawSolution { solution, score, round },
+ Default::default(),
+ desired_targets,
+ snapshot.clone(),
+ round,
+ Default::default(),
+ )
+ .unwrap();
+
+ let trimmed_supports = ready_solution.supports.into_iter().collect::<Vec<_>>();
+
+ // gather all trimmed_supports edges from the trimmed solution.
+ let mut trimmed_supports_edges_full = vec![];
+ for (t, s) in trimmed_supports {
+ for v in s.voters {
+ trimmed_supports_edges_full.push((t, v));
+ }
+ }
+
+ // expected trimmed supports set should be disjoint to the trimmed_supports full set of
+ // edges.
+ for edge in trimmed_supports_edges_full {
+ assert!(!expected_trimmed_supports.contains(&edge));
+ }
+ })
+ }
+
#[test]
fn trim_assignments_length_does_not_modify_when_short_enough() {
ExtBuilder::default().build_and_execute(|| {
diff --git a/substrate/frame/election-provider-multi-phase/test-staking-e2e/src/mock.rs b/substrate/frame/election-provider-multi-phase/test-staking-e2e/src/mock.rs
index 8118dfa2045..8c8de865600 100644
--- a/substrate/frame/election-provider-multi-phase/test-staking-e2e/src/mock.rs
+++ b/substrate/frame/election-provider-multi-phase/test-staking-e2e/src/mock.rs
@@ -24,7 +24,7 @@ use frame_support::{
PalletId,
};
use frame_system::EnsureRoot;
-use sp_core::{ConstU32, Get};
+use sp_core::{ConstBool, ConstU32, Get};
use sp_npos_elections::{ElectionScore, VoteWeight};
use sp_runtime::{
offchain::{
@@ -172,6 +172,8 @@ parameter_types! {
pub static TransactionPriority: transaction_validity::TransactionPriority = 1;
#[derive(Debug)]
pub static MaxWinners: u32 = 100;
+ #[derive(Debug)]
+ pub static MaxBackersPerWinner: u32 = 100;
pub static MaxVotesPerVoter: u32 = 16;
pub static SignedFixedDeposit: Balance = 1;
pub static SignedDepositIncreaseFactor: Percent = Percent::from_percent(10);
@@ -200,12 +202,18 @@ impl pallet_election_provider_multi_phase::Config for Runtime {
type SlashHandler = ();
type RewardHandler = ();
type DataProvider = Staking;
- type Fallback =
- frame_election_provider_support::NoElection<(AccountId, BlockNumber, Staking, MaxWinners)>;
+ type Fallback = frame_election_provider_support::NoElection<(
+ AccountId,
+ BlockNumber,
+ Staking,
+ MaxWinners,
+ MaxBackersPerWinner,
+ )>;
type GovernanceFallback = onchain::OnChainExecution<OnChainSeqPhragmen>;
type Solver = SequentialPhragmen<AccountId, SolutionAccuracyOf<Runtime>, ()>;
type ForceOrigin = EnsureRoot<AccountId>;
type MaxWinners = MaxWinners;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
type ElectionBounds = ElectionBounds;
type BenchmarkingConfig = NoopElectionProviderBenchmarkConfig;
type WeightInfo = ();
@@ -219,6 +227,7 @@ impl MinerConfig for Runtime {
type MaxLength = MinerMaxLength;
type MaxWeight = MinerMaxWeight;
type MaxWinners = MaxWinners;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
fn solution_weight(_v: u32, _t: u32, _a: u32, _d: u32) -> Weight {
Weight::zero()
@@ -356,6 +365,9 @@ parameter_types! {
}
impl onchain::Config for OnChainSeqPhragmen {
+ type MaxWinnersPerPage = MaxWinners;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
+ type Sort = ConstBool<true>;
type System = Runtime;
type Solver = SequentialPhragmen<
AccountId,
@@ -363,7 +375,6 @@ impl onchain::Config for OnChainSeqPhragmen {
>;
type DataProvider = Staking;
type WeightInfo = ();
- type MaxWinners = MaxWinners;
type Bounds = ElectionBounds;
}
diff --git a/substrate/frame/election-provider-support/Cargo.toml b/substrate/frame/election-provider-support/Cargo.toml
index 32fa381e1d2..aadf87edb0e 100644
--- a/substrate/frame/election-provider-support/Cargo.toml
+++ b/substrate/frame/election-provider-support/Cargo.toml
@@ -24,6 +24,8 @@ sp-arithmetic = { workspace = true }
sp-core = { workspace = true }
sp-npos-elections = { workspace = true }
sp-runtime = { workspace = true }
+sp-std = { workspace = true }
+
[dev-dependencies]
rand = { features = ["small_rng"], workspace = true, default-features = true }
@@ -43,6 +45,7 @@ std = [
"sp-io/std",
"sp-npos-elections/std",
"sp-runtime/std",
+ "sp-std/std",
]
runtime-benchmarks = [
"frame-support/runtime-benchmarks",
diff --git a/substrate/frame/election-provider-support/benchmarking/src/inner.rs b/substrate/frame/election-provider-support/benchmarking/src/inner.rs
index 7fb8c1bdb72..a7b969bb1cf 100644
--- a/substrate/frame/election-provider-support/benchmarking/src/inner.rs
+++ b/substrate/frame/election-provider-support/benchmarking/src/inner.rs
@@ -37,7 +37,7 @@ fn set_up_voters_targets<AccountId: Decode + Clone>(
voters_len: u32,
targets_len: u32,
degree: usize,
-) -> (Vec<(AccountId, u64, impl IntoIterator<Item = AccountId>)>, Vec<AccountId>) {
+) -> (Vec<(AccountId, u64, impl Clone + IntoIterator<Item = AccountId>)>, Vec<AccountId>) {
// fill targets.
let mut targets = (0..targets_len)
.map(|i| frame_benchmarking::account::<AccountId>("Target", i, SEED))
diff --git a/substrate/frame/election-provider-support/solution-type/fuzzer/src/compact.rs b/substrate/frame/election-provider-support/solution-type/fuzzer/src/compact.rs
index 90fd9509e6f..c4ae7c84623 100644
--- a/substrate/frame/election-provider-support/solution-type/fuzzer/src/compact.rs
+++ b/substrate/frame/election-provider-support/solution-type/fuzzer/src/compact.rs
@@ -21,7 +21,8 @@ use sp_arithmetic::Percent;
use sp_runtime::codec::{Encode, Error};
fn main() {
- generate_solution_type!(#[compact] pub struct InnerTestSolutionCompact::<
+ generate_solution_type!(
+ #[compact] pub struct InnerTestSolutionCompact::<
VoterIndex = u32,
TargetIndex = u32,
Accuracy = Percent,
diff --git a/substrate/frame/election-provider-support/solution-type/src/codec.rs b/substrate/frame/election-provider-support/solution-type/src/codec.rs
index 16d5f17469b..c1dd62fe555 100644
--- a/substrate/frame/election-provider-support/solution-type/src/codec.rs
+++ b/substrate/frame/election-provider-support/solution-type/src/codec.rs
@@ -33,6 +33,7 @@ pub(crate) fn codec_and_info_impl(
let scale_info = scale_info_impl(&ident, &voter_type, &target_type, &weight_type, count);
quote! {
+ impl _fepsp::codec::EncodeLike for #ident {}
#encode
#decode
#scale_info
diff --git a/substrate/frame/election-provider-support/solution-type/src/single_page.rs b/substrate/frame/election-provider-support/solution-type/src/single_page.rs
index de59df162c8..f57dcb9694a 100644
--- a/substrate/frame/election-provider-support/solution-type/src/single_page.rs
+++ b/substrate/frame/election-provider-support/solution-type/src/single_page.rs
@@ -84,6 +84,8 @@ pub(crate) fn generate(def: crate::SolutionDef) -> Result<TokenStream2> {
Eq,
Clone,
Debug,
+ Ord,
+ PartialOrd,
_fepsp::codec::Encode,
_fepsp::codec::Decode,
_fepsp::scale_info::TypeInfo,
@@ -96,6 +98,8 @@ pub(crate) fn generate(def: crate::SolutionDef) -> Result<TokenStream2> {
let from_impl = from_impl(&struct_name, count);
let into_impl = into_impl(&assignment_name, count, weight_type.clone());
let from_index_impl = crate::index_assignment::from_impl(&struct_name, count);
+ let sort_impl = sort_impl(count);
+ let remove_weakest_sorted_impl = remove_weakest_sorted_impl(count);
Ok(quote! (
/// A struct to encode a election assignment in a compact way.
@@ -178,6 +182,29 @@ pub(crate) fn generate(def: crate::SolutionDef) -> Result<TokenStream2> {
all_targets.into_iter().collect()
}
+
+ fn sort<F>(&mut self, mut voter_stake: F)
+ where
+ F: FnMut(&Self::VoterIndex) -> _feps::VoteWeight
+ {
+ #sort_impl
+ }
+
+ fn remove_weakest_sorted<F>(&mut self, mut voter_stake: F) -> Option<Self::VoterIndex>
+ where
+ F: FnMut(&Self::VoterIndex) -> _feps::VoteWeight
+ {
+ #remove_weakest_sorted_impl
+ }
+
+ fn corrupt(&mut self) {
+ self.votes1.push(
+ (
+ _fepsp::sp_arithmetic::traits::Bounded::max_value(),
+ _fepsp::sp_arithmetic::traits::Bounded::max_value()
+ )
+ )
+ }
}
type __IndexAssignment = _feps::IndexAssignment<
@@ -185,11 +212,12 @@ pub(crate) fn generate(def: crate::SolutionDef) -> Result<TokenStream2> {
<#ident as _feps::NposSolution>::TargetIndex,
<#ident as _feps::NposSolution>::Accuracy,
>;
+
impl _fepsp::codec::MaxEncodedLen for #ident {
fn max_encoded_len() -> usize {
use frame_support::traits::Get;
use _fepsp::codec::Encode;
- let s: u32 = #max_voters::get();
+ let s: u32 = <#max_voters as _feps::Get<u32>>::get();
let max_element_size =
// the first voter..
#voter_type::max_encoded_len()
@@ -206,6 +234,7 @@ pub(crate) fn generate(def: crate::SolutionDef) -> Result<TokenStream2> {
.saturating_add((s as usize).saturating_mul(max_element_size))
}
}
+
impl<'a> core::convert::TryFrom<&'a [__IndexAssignment]> for #ident {
type Error = _feps::Error;
fn try_from(index_assignments: &'a [__IndexAssignment]) -> Result<Self, Self::Error> {
@@ -227,6 +256,65 @@ pub(crate) fn generate(def: crate::SolutionDef) -> Result<TokenStream2> {
))
}
+fn sort_impl(count: usize) -> TokenStream2 {
+ (1..=count)
+ .map(|c| {
+ let field = vote_field(c);
+ quote! {
+ // NOTE: self.filed here is sometimes `Vec<(voter, weight)>` and sometimes
+ // `Vec<(voter, weights, last_weight)>`, but Rust's great patter matching makes it
+ // all work super nice.
+ self.#field.sort_by(|(a, ..), (b, ..)| voter_stake(&b).cmp(&voter_stake(&a)));
+ // ---------------------------------^^ in all fields, the index 0 is the voter id.
+ }
+ })
+ .collect::<TokenStream2>()
+}
+
+fn remove_weakest_sorted_impl(count: usize) -> TokenStream2 {
+ // check minium from field 2 onwards. We assume 0 is minimum
+ let check_minimum = (2..=count).map(|c| {
+ let filed = vote_field(c);
+ quote! {
+ let filed_value = self.#filed
+ .last()
+ .map(|(x, ..)| voter_stake(x))
+ .unwrap_or_else(|| _fepsp::sp_arithmetic::traits::Bounded::max_value());
+ if filed_value < minimum {
+ minimum = filed_value;
+ minimum_filed = #c
+ }
+ }
+ });
+
+ let remove_minimum_match = (1..=count).map(|c| {
+ let filed = vote_field(c);
+ quote! {
+ #c => self.#filed.pop().map(|(x, ..)| x),
+ }
+ });
+
+ let first_filed = vote_field(1);
+ quote! {
+ // we assume first one is the minimum. No problem if it is empty.
+ let mut minimum_filed = 1;
+ let mut minimum = self.#first_filed
+ .last()
+ .map(|(x, ..)| voter_stake(x))
+ .unwrap_or_else(|| _fepsp::sp_arithmetic::traits::Bounded::max_value());
+
+ #( #check_minimum )*
+
+ match minimum_filed {
+ #( #remove_minimum_match )*
+ _ => {
+ debug_assert!(false);
+ None
+ }
+ }
+ }
+}
+
fn remove_voter_impl(count: usize) -> TokenStream2 {
let field_name = vote_field(1);
let single = quote! {
diff --git a/substrate/frame/election-provider-support/src/bounds.rs b/substrate/frame/election-provider-support/src/bounds.rs
index 6b2423b7fec..6ef0604cb4b 100644
--- a/substrate/frame/election-provider-support/src/bounds.rs
+++ b/substrate/frame/election-provider-support/src/bounds.rs
@@ -54,6 +54,7 @@
//! A default or `None` bound means that no bounds are enforced (i.e. unlimited result size). In
//! general, be careful when using unbounded election bounds in production.
+use codec::Encode;
use core::ops::Add;
use sp_runtime::traits::Zero;
@@ -154,6 +155,15 @@ impl DataProviderBounds {
self.size_exhausted(given_size.unwrap_or(SizeBound::zero()))
}
+ /// Ensures the given encode-able slice meets both the length and count bounds.
+ ///
+ /// Same as `exhausted` but a better syntax.
+ pub fn slice_exhausted<T: Encode>(self, input: &[T]) -> bool {
+ let size = Some((input.encoded_size() as u32).into());
+ let count = Some((input.len() as u32).into());
+ self.exhausted(size, count)
+ }
+
/// Returns an instance of `Self` that is constructed by capping both the `count` and `size`
/// fields. If `self` is None, overwrite it with the provided bounds.
pub fn max(self, bounds: DataProviderBounds) -> Self {
diff --git a/substrate/frame/election-provider-support/src/lib.rs b/substrate/frame/election-provider-support/src/lib.rs
index cb3249e388a..68aee2c82e6 100644
--- a/substrate/frame/election-provider-support/src/lib.rs
+++ b/substrate/frame/election-provider-support/src/lib.rs
@@ -21,10 +21,9 @@
//! within FRAME pallets.
//!
//! Something that will provide the functionality of election will implement
-//! [`ElectionProvider`] and its parent-trait [`ElectionProviderBase`], whilst needing an
-//! associated [`ElectionProviderBase::DataProvider`], which needs to be
-//! fulfilled by an entity implementing [`ElectionDataProvider`]. Most often, *the data provider is*
-//! the receiver of the election, resulting in a diagram as below:
+//! [`ElectionProvider`], whilst needing an associated [`ElectionProvider::DataProvider`], which
+//! needs to be fulfilled by an entity implementing [`ElectionDataProvider`]. Most often, *the data
+//! provider is* the receiver of the election, resulting in a diagram as below:
//!
//! ```ignore
//! ElectionDataProvider
@@ -56,8 +55,15 @@
//!
//! To accommodate both type of elections in one trait, the traits lean toward **stateful
//! election**, as it is more general than the stateless. This is why [`ElectionProvider::elect`]
-//! has no parameters. All value and type parameter must be provided by the [`ElectionDataProvider`]
-//! trait, even if the election happens immediately.
+//! does not receive election data as an input. All value and type parameter must be provided by the
+//! [`ElectionDataProvider`] trait, even if the election happens immediately.
+//!
+//! ## Multi-page election support
+//!
+//! Both [`ElectionDataProvider`] and [`ElectionProvider`] traits are parameterized by page,
+//! supporting an election to be performed over multiple pages. This enables the
+//! [`ElectionDataProvider`] implementor to provide all the election data over multiple pages.
+//! Similarly [`ElectionProvider::elect`] is parameterized by page index.
//!
//! ## Election Data
//!
@@ -104,17 +110,17 @@
//! impl<T: Config> ElectionDataProvider for Pallet<T> {
//! type AccountId = AccountId;
//! type BlockNumber = BlockNumber;
-//! type MaxVotesPerVoter = ConstU32<1>;
+//! type MaxVotesPerVoter = ConstU32<100>;
//!
//! fn desired_targets() -> data_provider::Result<u32> {
//! Ok(1)
//! }
-//! fn electing_voters(bounds: DataProviderBounds)
+//! fn electing_voters(bounds: DataProviderBounds, _page: PageIndex)
//! -> data_provider::Result<Vec<VoterOf<Self>>>
//! {
//! Ok(Default::default())
//! }
-//! fn electable_targets(bounds: DataProviderBounds) -> data_provider::Result<Vec<AccountId>> {
+//! fn electable_targets(bounds: DataProviderBounds, _page: PageIndex) -> data_provider::Result<Vec<AccountId>> {
//! Ok(vec![10, 20, 30])
//! }
//! fn next_election_prediction(now: BlockNumber) -> BlockNumber {
@@ -126,40 +132,54 @@
//!
//! mod generic_election_provider {
//! use super::*;
+//! use sp_runtime::traits::Zero;
//!
//! pub struct GenericElectionProvider<T: Config>(std::marker::PhantomData<T>);
//!
//! pub trait Config {
//! type DataProvider: ElectionDataProvider<AccountId=AccountId, BlockNumber = BlockNumber>;
+//! type MaxWinnersPerPage: Get<u32>;
+//! type MaxBackersPerWinner: Get<u32>;
+//! type Pages: Get<u32>;
//! }
//!
-//! impl<T: Config> ElectionProviderBase for GenericElectionProvider<T> {
+//! impl<T: Config> ElectionProvider for GenericElectionProvider<T> {
//! type AccountId = AccountId;
//! type BlockNumber = BlockNumber;
//! type Error = &'static str;
+//! type MaxBackersPerWinner = T::MaxBackersPerWinner;
+//! type MaxWinnersPerPage = T::MaxWinnersPerPage;
+//! type Pages = T::Pages;
//! type DataProvider = T::DataProvider;
-//! type MaxWinners = ConstU32<{ u32::MAX }>;
//!
-//! }
+//! fn elect(page: PageIndex) -> Result<BoundedSupportsOf<Self>, Self::Error> {
+//! unimplemented!()
+//! }
//!
-//! impl<T: Config> ElectionProvider for GenericElectionProvider<T> {
-//! fn ongoing() -> bool { false }
-//! fn elect() -> Result<BoundedSupportsOf<Self>, Self::Error> {
-//! Self::DataProvider::electable_targets(DataProviderBounds::default())
-//! .map_err(|_| "failed to elect")
-//! .map(|t| bounded_vec![(t[0], Support::default())])
+//! fn ongoing() -> bool {
+//! unimplemented!()
//! }
//! }
//! }
//!
//! mod runtime {
+//! use frame_support::parameter_types;
//! use super::generic_election_provider;
//! use super::data_provider_mod;
//! use super::AccountId;
//!
+//! parameter_types! {
+//! pub static MaxWinnersPerPage: u32 = 10;
+//! pub static MaxBackersPerWinner: u32 = 20;
+//! pub static Pages: u32 = 2;
+//! }
+//!
//! struct Runtime;
//! impl generic_election_provider::Config for Runtime {
//! type DataProvider = data_provider_mod::Pallet<Runtime>;
+//! type MaxWinnersPerPage = MaxWinnersPerPage;
+//! type MaxBackersPerWinner = MaxBackersPerWinner;
+//! type Pages = Pages;
//! }
//!
//! impl data_provider_mod::Config for Runtime {
@@ -181,21 +201,24 @@ extern crate alloc;
use alloc::{boxed::Box, vec::Vec};
use core::fmt::Debug;
+use frame_support::traits::{Defensive, DefensiveResult};
+use sp_core::ConstU32;
use sp_runtime::{
traits::{Bounded, Saturating, Zero},
RuntimeDebug,
};
pub use bounds::DataProviderBounds;
-pub use codec::{Decode, Encode};
+pub use codec::{Decode, Encode, MaxEncodedLen};
/// Re-export the solution generation macro.
pub use frame_election_provider_solution_type::generate_solution_type;
-pub use frame_support::{traits::Get, weights::Weight, BoundedVec};
+pub use frame_support::{traits::Get, weights::Weight, BoundedVec, DefaultNoBound};
+use scale_info::TypeInfo;
/// Re-export some type as they are used in the interface.
pub use sp_arithmetic::PerThing;
pub use sp_npos_elections::{
- Assignment, BalancingConfig, BoundedSupports, ElectionResult, Error, ExtendedBalance,
- IdentifierT, PerThing128, Support, Supports, VoteWeight,
+ Assignment, BalancingConfig, ElectionResult, Error, ExtendedBalance, IdentifierT, PerThing128,
+ Support, Supports, VoteWeight,
};
pub use traits::NposSolution;
@@ -234,6 +257,9 @@ mod mock;
#[cfg(test)]
mod tests;
+/// A page index for the multi-block elections pagination.
+pub type PageIndex = u32;
+
/// The [`IndexAssignment`] type is an intermediate between the assignments list
/// ([`&[Assignment<T>]`][Assignment]) and `SolutionOf<T>`.
///
@@ -251,7 +277,9 @@ pub struct IndexAssignment<VoterIndex, TargetIndex, P: PerThing> {
pub distribution: Vec<(TargetIndex, P)>,
}
-impl<VoterIndex, TargetIndex, P: PerThing> IndexAssignment<VoterIndex, TargetIndex, P> {
+impl<VoterIndex: core::fmt::Debug, TargetIndex: core::fmt::Debug, P: PerThing>
+ IndexAssignment<VoterIndex, TargetIndex, P>
+{
pub fn new<AccountId: IdentifierT>(
assignment: &Assignment<AccountId, P>,
voter_index: impl Fn(&AccountId) -> Option<VoterIndex>,
@@ -293,21 +321,43 @@ pub trait ElectionDataProvider {
/// Maximum number of votes per voter that this data provider is providing.
type MaxVotesPerVoter: Get<u32>;
- /// All possible targets for the election, i.e. the targets that could become elected, thus
- /// "electable".
+ /// Returns the possible targets for the election associated with the provided `page`, i.e. the
+ /// targets that could become elected, thus "electable".
///
/// This should be implemented as a self-weighing function. The implementor should register its
/// appropriate weight at the end of execution with the system pallet directly.
- fn electable_targets(bounds: DataProviderBounds)
- -> data_provider::Result<Vec<Self::AccountId>>;
+ fn electable_targets(
+ bounds: DataProviderBounds,
+ page: PageIndex,
+ ) -> data_provider::Result<Vec<Self::AccountId>>;
- /// All the voters that participate in the election, thus "electing".
+ /// A state-less version of [`Self::electable_targets`].
+ ///
+ /// An election-provider that only uses 1 page should use this.
+ fn electable_targets_stateless(
+ bounds: DataProviderBounds,
+ ) -> data_provider::Result<Vec<Self::AccountId>> {
+ Self::electable_targets(bounds, 0)
+ }
+
+ /// All the voters that participate in the election associated with page `page`, thus
+ /// "electing".
///
/// Note that if a notion of self-vote exists, it should be represented here.
///
/// This should be implemented as a self-weighing function. The implementor should register its
/// appropriate weight at the end of execution with the system pallet directly.
- fn electing_voters(bounds: DataProviderBounds) -> data_provider::Result<Vec<VoterOf<Self>>>;
+ fn electing_voters(
+ bounds: DataProviderBounds,
+ page: PageIndex,
+ ) -> data_provider::Result<Vec<VoterOf<Self>>>;
+
+ /// A state-less version of [`Self::electing_voters`].
+ fn electing_voters_stateless(
+ bounds: DataProviderBounds,
+ ) -> data_provider::Result<Vec<VoterOf<Self>>> {
+ Self::electing_voters(bounds, 0)
+ }
/// The number of targets to elect.
///
@@ -339,6 +389,9 @@ pub trait ElectionDataProvider {
) {
}
+ #[cfg(any(feature = "runtime-benchmarks", test))]
+ fn set_next_election(_to: u32) {}
+
/// Utility function only to be used in benchmarking scenarios, to be implemented optionally,
/// else a noop.
///
@@ -361,28 +414,38 @@ pub trait ElectionDataProvider {
/// Clear all voters and targets.
#[cfg(any(feature = "runtime-benchmarks", test))]
fn clear() {}
+
+ #[cfg(any(feature = "runtime-benchmarks", test))]
+ fn set_desired_targets(_count: u32) {}
}
-/// Base trait for types that can provide election
-pub trait ElectionProviderBase {
- /// The account identifier type.
+/// Something that can compute the result of an election and pass it back to the caller in a paged
+/// way.
+pub trait ElectionProvider {
+ /// The account ID identifier;
type AccountId;
/// The block number type.
type BlockNumber;
- /// The error type that is returned by the provider.
- type Error: Debug;
+ /// The error type returned by the provider;
+ type Error: Debug + PartialEq;
- /// The upper bound on election winners that can be returned.
+ /// The maximum number of winners per page in results returned by this election provider.
///
- /// # WARNING
+ /// A winner is an `AccountId` that is part of the final election result.
+ type MaxWinnersPerPage: Get<u32>;
+
+ /// The maximum number of backers that a single page may have in results returned by this
+ /// election provider.
///
- /// when communicating with the data provider, one must ensure that
- /// `DataProvider::desired_targets` returns a value less than this bound. An
- /// implementation can chose to either return an error and/or sort and
- /// truncate the output to meet this bound.
- type MaxWinners: Get<u32>;
+ /// A backer is an `AccountId` that "backs" one or more winners. For example, in the context of
+ /// nominated proof of stake, a backer is a voter that nominates a winner validator in the
+ /// election result.
+ type MaxBackersPerWinner: Get<u32>;
+
+ /// The number of pages that this election provider supports.
+ type Pages: Get<PageIndex>;
/// The data provider of the election.
type DataProvider: ElectionDataProvider<
@@ -390,92 +453,108 @@ pub trait ElectionProviderBase {
BlockNumber = Self::BlockNumber,
>;
+ /// Elect a new set of winners.
+ ///
+ /// A complete election may require multiple calls to [`ElectionProvider::elect`] if
+ /// [`ElectionProvider::Pages`] is higher than one.
+ ///
+ /// The result is returned in a target major format, namely as vector of supports.
+ ///
+ /// This should be implemented as a self-weighing function. The implementor should register its
+ /// appropriate weight at the end of execution with the system pallet directly.
+ fn elect(page: PageIndex) -> Result<BoundedSupportsOf<Self>, Self::Error>;
+
+ /// The index of the *most* significant page that this election provider supports.
+ fn msp() -> PageIndex {
+ Self::Pages::get().saturating_sub(1)
+ }
+
+ /// The index of the *least* significant page that this election provider supports.
+ fn lsp() -> PageIndex {
+ Zero::zero()
+ }
+
/// checked call to `Self::DataProvider::desired_targets()` ensuring the value never exceeds
- /// [`Self::MaxWinners`].
+ /// [`Self::MaxWinnersPerPage`].
fn desired_targets_checked() -> data_provider::Result<u32> {
Self::DataProvider::desired_targets().and_then(|desired_targets| {
- if desired_targets <= Self::MaxWinners::get() {
+ if desired_targets <= Self::MaxWinnersPerPage::get() {
Ok(desired_targets)
} else {
Err("desired_targets must not be greater than MaxWinners.")
}
})
}
-}
-/// Elect a new set of winners, bounded by `MaxWinners`.
-///
-/// It must always use [`ElectionProviderBase::DataProvider`] to fetch the data it needs.
-///
-/// This election provider that could function asynchronously. This implies that this election might
-/// needs data ahead of time (ergo, receives no arguments to `elect`), and might be `ongoing` at
-/// times.
-pub trait ElectionProvider: ElectionProviderBase {
- /// Indicate if this election provider is currently ongoing an asynchronous election or not.
+ /// Indicate whether this election provider is currently ongoing an asynchronous election.
fn ongoing() -> bool;
-
- /// Performs the election. This should be implemented as a self-weighing function. The
- /// implementor should register its appropriate weight at the end of execution with the
- /// system pallet directly.
- fn elect() -> Result<BoundedSupportsOf<Self>, Self::Error>;
}
/// A (almost) marker trait that signifies an election provider as working synchronously. i.e. being
/// *instant*.
///
-/// This must still use the same data provider as with [`ElectionProviderBase::DataProvider`].
+/// This must still use the same data provider as with [`ElectionProvider::DataProvider`].
/// However, it can optionally overwrite the amount of voters and targets that are fetched from the
/// data provider at runtime via `forced_input_voters_bound` and `forced_input_target_bound`.
-pub trait InstantElectionProvider: ElectionProviderBase {
+pub trait InstantElectionProvider: ElectionProvider {
fn instant_elect(
- forced_input_voters_bound: DataProviderBounds,
- forced_input_target_bound: DataProviderBounds,
+ voters: Vec<VoterOf<Self::DataProvider>>,
+ targets: Vec<Self::AccountId>,
+ desired_targets: u32,
) -> Result<BoundedSupportsOf<Self>, Self::Error>;
+
+ // Sine many instant election provider, like [`NoElection`] are meant to do nothing, this is a
+ // hint for the caller to call before, and if `false` is returned, not bother with passing all
+ // the info to `instant_elect`.
+ fn bother() -> bool;
}
/// An election provider that does nothing whatsoever.
pub struct NoElection<X>(core::marker::PhantomData<X>);
-impl<AccountId, BlockNumber, DataProvider, MaxWinners> ElectionProviderBase
- for NoElection<(AccountId, BlockNumber, DataProvider, MaxWinners)>
+impl<AccountId, BlockNumber, DataProvider, MaxWinnersPerPage, MaxBackersPerWinner> ElectionProvider
+ for NoElection<(AccountId, BlockNumber, DataProvider, MaxWinnersPerPage, MaxBackersPerWinner)>
where
DataProvider: ElectionDataProvider<AccountId = AccountId, BlockNumber = BlockNumber>,
- MaxWinners: Get<u32>,
+ MaxWinnersPerPage: Get<u32>,
+ MaxBackersPerWinner: Get<u32>,
{
type AccountId = AccountId;
type BlockNumber = BlockNumber;
type Error = &'static str;
- type MaxWinners = MaxWinners;
+ type Pages = ConstU32<1>;
type DataProvider = DataProvider;
-}
+ type MaxWinnersPerPage = MaxWinnersPerPage;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
-impl<AccountId, BlockNumber, DataProvider, MaxWinners> ElectionProvider
- for NoElection<(AccountId, BlockNumber, DataProvider, MaxWinners)>
-where
- DataProvider: ElectionDataProvider<AccountId = AccountId, BlockNumber = BlockNumber>,
- MaxWinners: Get<u32>,
-{
- fn ongoing() -> bool {
- false
+ fn elect(_page: PageIndex) -> Result<BoundedSupportsOf<Self>, Self::Error> {
+ Err("`NoElection` cannot do anything.")
}
- fn elect() -> Result<BoundedSupportsOf<Self>, Self::Error> {
- Err("`NoElection` cannot do anything.")
+ fn ongoing() -> bool {
+ false
}
}
-impl<AccountId, BlockNumber, DataProvider, MaxWinners> InstantElectionProvider
- for NoElection<(AccountId, BlockNumber, DataProvider, MaxWinners)>
+impl<AccountId, BlockNumber, DataProvider, MaxWinnersPerPage, MaxBackersPerWinner>
+ InstantElectionProvider
+ for NoElection<(AccountId, BlockNumber, DataProvider, MaxWinnersPerPage, MaxBackersPerWinner)>
where
DataProvider: ElectionDataProvider<AccountId = AccountId, BlockNumber = BlockNumber>,
- MaxWinners: Get<u32>,
+ MaxWinnersPerPage: Get<u32>,
+ MaxBackersPerWinner: Get<u32>,
{
fn instant_elect(
- _: DataProviderBounds,
- _: DataProviderBounds,
+ _: Vec<VoterOf<Self::DataProvider>>,
+ _: Vec<Self::AccountId>,
+ _: u32,
) -> Result<BoundedSupportsOf<Self>, Self::Error> {
Err("`NoElection` cannot do anything.")
}
+
+ fn bother() -> bool {
+ false
+ }
}
/// A utility trait for something to implement `ElectionDataProvider` in a sensible way.
@@ -607,7 +686,11 @@ pub trait NposSolver {
fn solve(
to_elect: usize,
targets: Vec<Self::AccountId>,
- voters: Vec<(Self::AccountId, VoteWeight, impl IntoIterator<Item = Self::AccountId>)>,
+ voters: Vec<(
+ Self::AccountId,
+ VoteWeight,
+ impl Clone + IntoIterator<Item = Self::AccountId>,
+ )>,
) -> Result<ElectionResult<Self::AccountId, Self::Accuracy>, Self::Error>;
/// Measure the weight used in the calculation of the solver.
@@ -617,6 +700,70 @@ pub trait NposSolver {
fn weight<T: WeightInfo>(voters: u32, targets: u32, vote_degree: u32) -> Weight;
}
+/// A quick and dirty solver, that produces a valid but probably worthless election result, but is
+/// fast.
+///
+/// It choses a random number of winners without any consideration.
+///
+/// Then it iterates over the voters and assigns them to the winners.
+///
+/// It is only meant to be used in benchmarking.
+pub struct QuickDirtySolver<AccountId, Accuracy>(core::marker::PhantomData<(AccountId, Accuracy)>);
+impl<AccountId: IdentifierT, Accuracy: PerThing128> NposSolver
+ for QuickDirtySolver<AccountId, Accuracy>
+{
+ type AccountId = AccountId;
+ type Accuracy = Accuracy;
+ type Error = &'static str;
+
+ fn solve(
+ to_elect: usize,
+ targets: Vec<Self::AccountId>,
+ voters: Vec<(
+ Self::AccountId,
+ VoteWeight,
+ impl Clone + IntoIterator<Item = Self::AccountId>,
+ )>,
+ ) -> Result<ElectionResult<Self::AccountId, Self::Accuracy>, Self::Error> {
+ use sp_std::collections::btree_map::BTreeMap;
+
+ if to_elect > targets.len() {
+ return Err("to_elect is greater than the number of targets.");
+ }
+
+ let winners = targets.into_iter().take(to_elect).collect::<Vec<_>>();
+
+ let mut assignments = Vec::with_capacity(voters.len());
+ let mut final_winners = BTreeMap::<Self::AccountId, u128>::new();
+
+ for (voter, weight, votes) in voters {
+ let our_winners = winners
+ .iter()
+ .filter(|w| votes.clone().into_iter().any(|v| v == **w))
+ .collect::<Vec<_>>();
+ let our_winners_len = our_winners.len();
+ let distribution = our_winners
+ .into_iter()
+ .map(|w| {
+ *final_winners.entry(w.clone()).or_default() += weight as u128;
+ (w.clone(), Self::Accuracy::from_rational(1, our_winners_len as u128))
+ })
+ .collect::<Vec<_>>();
+
+ let mut assignment = Assignment { who: voter, distribution };
+ assignment.try_normalize().unwrap();
+ assignments.push(assignment);
+ }
+
+ let winners = final_winners.into_iter().collect::<Vec<_>>();
+ Ok(ElectionResult { winners, assignments })
+ }
+
+ fn weight<T: WeightInfo>(_: u32, _: u32, _: u32) -> Weight {
+ Default::default()
+ }
+}
+
/// A wrapper for [`sp_npos_elections::seq_phragmen`] that implements [`NposSolver`]. See the
/// documentation of [`sp_npos_elections::seq_phragmen`] for more info.
pub struct SequentialPhragmen<AccountId, Accuracy, Balancing = ()>(
@@ -632,7 +779,11 @@ impl<AccountId: IdentifierT, Accuracy: PerThing128, Balancing: Get<Option<Balanc
fn solve(
winners: usize,
targets: Vec<Self::AccountId>,
- voters: Vec<(Self::AccountId, VoteWeight, impl IntoIterator<Item = Self::AccountId>)>,
+ voters: Vec<(
+ Self::AccountId,
+ VoteWeight,
+ impl Clone + IntoIterator<Item = Self::AccountId>,
+ )>,
) -> Result<ElectionResult<Self::AccountId, Self::Accuracy>, Self::Error> {
sp_npos_elections::seq_phragmen(winners, targets, voters, Balancing::get())
}
@@ -657,7 +808,11 @@ impl<AccountId: IdentifierT, Accuracy: PerThing128, Balancing: Get<Option<Balanc
fn solve(
winners: usize,
targets: Vec<Self::AccountId>,
- voters: Vec<(Self::AccountId, VoteWeight, impl IntoIterator<Item = Self::AccountId>)>,
+ voters: Vec<(
+ Self::AccountId,
+ VoteWeight,
+ impl Clone + IntoIterator<Item = Self::AccountId>,
+ )>,
) -> Result<ElectionResult<Self::AccountId, Self::Accuracy>, Self::Error> {
sp_npos_elections::phragmms(winners, targets, voters, Balancing::get())
}
@@ -674,10 +829,301 @@ pub type Voter<AccountId, Bound> = (AccountId, VoteWeight, BoundedVec<AccountId,
pub type VoterOf<D> =
Voter<<D as ElectionDataProvider>::AccountId, <D as ElectionDataProvider>::MaxVotesPerVoter>;
-/// Same as `BoundedSupports` but parameterized by a `ElectionProviderBase`.
+/// A bounded vector of supports. Bounded equivalent to [`sp_npos_elections::Supports`].
+#[derive(Default, Debug, Encode, Decode, scale_info::TypeInfo, MaxEncodedLen)]
+#[codec(mel_bound(AccountId: MaxEncodedLen, Bound: Get<u32>))]
+#[scale_info(skip_type_params(Bound))]
+pub struct BoundedSupport<AccountId, Bound: Get<u32>> {
+ /// Total support.
+ pub total: ExtendedBalance,
+ /// Support from voters.
+ pub voters: BoundedVec<(AccountId, ExtendedBalance), Bound>,
+}
+
+impl<AccountId, Bound: Get<u32>> sp_npos_elections::Backings for &BoundedSupport<AccountId, Bound> {
+ fn total(&self) -> ExtendedBalance {
+ self.total
+ }
+}
+
+impl<AccountId: PartialEq, Bound: Get<u32>> PartialEq for BoundedSupport<AccountId, Bound> {
+ fn eq(&self, other: &Self) -> bool {
+ self.total == other.total && self.voters == other.voters
+ }
+}
+
+impl<AccountId, Bound: Get<u32>> From<BoundedSupport<AccountId, Bound>> for Support<AccountId> {
+ fn from(b: BoundedSupport<AccountId, Bound>) -> Self {
+ Support { total: b.total, voters: b.voters.into_inner() }
+ }
+}
+
+impl<AccountId: Clone, Bound: Get<u32>> Clone for BoundedSupport<AccountId, Bound> {
+ fn clone(&self) -> Self {
+ Self { voters: self.voters.clone(), total: self.total }
+ }
+}
+
+impl<AccountId, Bound: Get<u32>> TryFrom<sp_npos_elections::Support<AccountId>>
+ for BoundedSupport<AccountId, Bound>
+{
+ type Error = &'static str;
+ fn try_from(s: sp_npos_elections::Support<AccountId>) -> Result<Self, Self::Error> {
+ let voters = s.voters.try_into().map_err(|_| "voters bound not respected")?;
+ Ok(Self { voters, total: s.total })
+ }
+}
+
+impl<AccountId: Clone, Bound: Get<u32>> BoundedSupport<AccountId, Bound> {
+ pub fn sorted_truncate_from(mut support: sp_npos_elections::Support<AccountId>) -> (Self, u32) {
+ // If bounds meet, then short circuit.
+ if let Ok(bounded) = support.clone().try_into() {
+ return (bounded, 0)
+ }
+
+ let pre_len = support.voters.len();
+ // sort support based on stake of each backer, low to high.
+ // Note: we don't sort high to low and truncate because we would have to track `total`
+ // updates, so we need one iteration anyhow.
+ support.voters.sort_by(|a, b| a.1.cmp(&b.1));
+ // then do the truncation.
+ let mut bounded = Self { voters: Default::default(), total: 0 };
+ while let Some((voter, weight)) = support.voters.pop() {
+ if let Err(_) = bounded.voters.try_push((voter, weight)) {
+ break
+ }
+ bounded.total += weight;
+ }
+ let post_len = bounded.voters.len();
+ (bounded, (pre_len - post_len) as u32)
+ }
+}
+
+/// A bounded vector of [`BoundedSupport`].
+///
+/// A [`BoundedSupports`] is a set of [`sp_npos_elections::Supports`] which are bounded in two
+/// dimensions. `BInner` corresponds to the bound of the maximum backers per voter and `BOuter`
+/// corresponds to the bound of the maximum winners that the bounded supports may contain.
+///
+/// With the bounds, we control the maximum size of a bounded supports instance.
+#[derive(Encode, Decode, TypeInfo, DefaultNoBound, MaxEncodedLen)]
+#[codec(mel_bound(AccountId: MaxEncodedLen, BOuter: Get<u32>, BInner: Get<u32>))]
+#[scale_info(skip_type_params(BOuter, BInner))]
+pub struct BoundedSupports<AccountId, BOuter: Get<u32>, BInner: Get<u32>>(
+ pub BoundedVec<(AccountId, BoundedSupport<AccountId, BInner>), BOuter>,
+);
+
+/// Try and build yourself from another `BoundedSupports` with a different set of types.
+pub trait TryFromOtherBounds<AccountId, BOtherOuter: Get<u32>, BOtherInner: Get<u32>> {
+ fn try_from_other_bounds(
+ other: BoundedSupports<AccountId, BOtherOuter, BOtherInner>,
+ ) -> Result<Self, crate::Error>
+ where
+ Self: Sized;
+}
+
+impl<
+ AccountId,
+ BOuter: Get<u32>,
+ BInner: Get<u32>,
+ BOtherOuter: Get<u32>,
+ BOuterInner: Get<u32>,
+ > TryFromOtherBounds<AccountId, BOtherOuter, BOuterInner>
+ for BoundedSupports<AccountId, BOuter, BInner>
+{
+ fn try_from_other_bounds(
+ other: BoundedSupports<AccountId, BOtherOuter, BOuterInner>,
+ ) -> Result<Self, crate::Error> {
+ // TODO: we might as well do this with unsafe rust and do it faster.
+ if BOtherOuter::get() <= BOuter::get() && BInner::get() <= BOuterInner::get() {
+ let supports = other
+ .into_iter()
+ .map(|(acc, b_support)| {
+ b_support
+ .try_into()
+ .defensive_map_err(|_| Error::BoundsExceeded)
+ .map(|b_support| (acc, b_support))
+ })
+ .collect::<Result<Vec<_>, _>>()
+ .defensive()?;
+ supports.try_into()
+ } else {
+ Err(crate::Error::BoundsExceeded)
+ }
+ }
+}
+
+impl<AccountId: Clone, BOuter: Get<u32>, BInner: Get<u32>>
+ BoundedSupports<AccountId, BOuter, BInner>
+{
+ /// Two u32s returned are number of winners and backers removed respectively.
+ pub fn sorted_truncate_from(supports: Supports<AccountId>) -> (Self, u32, u32) {
+ // if bounds, meet, short circuit
+ if let Ok(bounded) = supports.clone().try_into() {
+ return (bounded, 0, 0)
+ }
+
+ let pre_winners = supports.len();
+ let mut backers_removed = 0;
+ // first, convert all inner supports.
+ let mut inner_supports = supports
+ .into_iter()
+ .map(|(account, support)| {
+ let (bounded, removed) =
+ BoundedSupport::<AccountId, BInner>::sorted_truncate_from(support);
+ backers_removed += removed;
+ (account, bounded)
+ })
+ .collect::<Vec<_>>();
+
+ // then sort outer supports based on total stake, high to low
+ inner_supports.sort_by(|a, b| b.1.total.cmp(&a.1.total));
+
+ // then take the first slice that can fit.
+ let bounded = BoundedSupports(BoundedVec::<
+ (AccountId, BoundedSupport<AccountId, BInner>),
+ BOuter,
+ >::truncate_from(inner_supports));
+ let post_winners = bounded.len();
+ (bounded, (pre_winners - post_winners) as u32, backers_removed)
+ }
+}
+pub trait TryFromUnboundedPagedSupports<AccountId, BOuter: Get<u32>, BInner: Get<u32>> {
+ fn try_from_unbounded_paged(
+ self,
+ ) -> Result<Vec<BoundedSupports<AccountId, BOuter, BInner>>, crate::Error>
+ where
+ Self: Sized;
+}
+
+impl<AccountId, BOuter: Get<u32>, BInner: Get<u32>>
+ TryFromUnboundedPagedSupports<AccountId, BOuter, BInner> for Vec<Supports<AccountId>>
+{
+ fn try_from_unbounded_paged(
+ self,
+ ) -> Result<Vec<BoundedSupports<AccountId, BOuter, BInner>>, crate::Error> {
+ self.into_iter()
+ .map(|s| s.try_into().map_err(|_| crate::Error::BoundsExceeded))
+ .collect::<Result<Vec<_>, _>>()
+ }
+}
+
+impl<AccountId, BOuter: Get<u32>, BInner: Get<u32>> sp_npos_elections::EvaluateSupport
+ for BoundedSupports<AccountId, BOuter, BInner>
+{
+ fn evaluate(&self) -> sp_npos_elections::ElectionScore {
+ sp_npos_elections::evaluate_support(self.iter().map(|(_, s)| s))
+ }
+}
+
+impl<AccountId, BOuter: Get<u32>, BInner: Get<u32>> sp_std::ops::DerefMut
+ for BoundedSupports<AccountId, BOuter, BInner>
+{
+ fn deref_mut(&mut self) -> &mut Self::Target {
+ &mut self.0
+ }
+}
+
+impl<AccountId: Debug, BOuter: Get<u32>, BInner: Get<u32>> Debug
+ for BoundedSupports<AccountId, BOuter, BInner>
+{
+ fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+ for s in self.0.iter() {
+ write!(f, "({:?}, {:?}, {:?}) ", s.0, s.1.total, s.1.voters)?;
+ }
+ Ok(())
+ }
+}
+
+impl<AccountId: PartialEq, BOuter: Get<u32>, BInner: Get<u32>> PartialEq
+ for BoundedSupports<AccountId, BOuter, BInner>
+{
+ fn eq(&self, other: &Self) -> bool {
+ self.0 == other.0
+ }
+}
+
+impl<AccountId, BOuter: Get<u32>, BInner: Get<u32>> Into<Supports<AccountId>>
+ for BoundedSupports<AccountId, BOuter, BInner>
+{
+ fn into(self) -> Supports<AccountId> {
+ // TODO: can be done faster with unsafe code.
+ self.0.into_iter().map(|(acc, b_support)| (acc, b_support.into())).collect()
+ }
+}
+
+impl<AccountId, BOuter: Get<u32>, BInner: Get<u32>>
+ From<BoundedVec<(AccountId, BoundedSupport<AccountId, BInner>), BOuter>>
+ for BoundedSupports<AccountId, BOuter, BInner>
+{
+ fn from(t: BoundedVec<(AccountId, BoundedSupport<AccountId, BInner>), BOuter>) -> Self {
+ Self(t)
+ }
+}
+
+impl<AccountId: Clone, BOuter: Get<u32>, BInner: Get<u32>> Clone
+ for BoundedSupports<AccountId, BOuter, BInner>
+{
+ fn clone(&self) -> Self {
+ Self(self.0.clone())
+ }
+}
+
+impl<AccountId, BOuter: Get<u32>, BInner: Get<u32>> sp_std::ops::Deref
+ for BoundedSupports<AccountId, BOuter, BInner>
+{
+ type Target = BoundedVec<(AccountId, BoundedSupport<AccountId, BInner>), BOuter>;
+
+ fn deref(&self) -> &Self::Target {
+ &self.0
+ }
+}
+
+impl<AccountId, BOuter: Get<u32>, BInner: Get<u32>> IntoIterator
+ for BoundedSupports<AccountId, BOuter, BInner>
+{
+ type Item = (AccountId, BoundedSupport<AccountId, BInner>);
+ type IntoIter = sp_std::vec::IntoIter<Self::Item>;
+
+ fn into_iter(self) -> Self::IntoIter {
+ self.0.into_iter()
+ }
+}
+
+impl<AccountId, BOuter: Get<u32>, BInner: Get<u32>> TryFrom<Supports<AccountId>>
+ for BoundedSupports<AccountId, BOuter, BInner>
+{
+ type Error = crate::Error;
+
+ fn try_from(supports: Supports<AccountId>) -> Result<Self, Self::Error> {
+ // optimization note: pre-allocate outer bounded vec.
+ let mut outer_bounded_supports = BoundedVec::<
+ (AccountId, BoundedSupport<AccountId, BInner>),
+ BOuter,
+ >::with_bounded_capacity(
+ supports.len().min(BOuter::get() as usize)
+ );
+
+ // optimization note: avoid intermediate allocations.
+ supports
+ .into_iter()
+ .map(|(account, support)| (account, support.try_into().map_err(|_| ())))
+ .try_for_each(|(account, maybe_bounded_supports)| {
+ outer_bounded_supports
+ .try_push((account, maybe_bounded_supports?))
+ .map_err(|_| ())
+ })
+ .map_err(|_| crate::Error::BoundsExceeded)?;
+
+ Ok(outer_bounded_supports.into())
+ }
+}
+
+/// Same as `BoundedSupports` but parameterized by an `ElectionProvider`.
pub type BoundedSupportsOf<E> = BoundedSupports<
- <E as ElectionProviderBase>::AccountId,
- <E as ElectionProviderBase>::MaxWinners,
+ <E as ElectionProvider>::AccountId,
+ <E as ElectionProvider>::MaxWinnersPerPage,
+ <E as ElectionProvider>::MaxBackersPerWinner,
>;
sp_core::generate_feature_enabled_macro!(
diff --git a/substrate/frame/election-provider-support/src/onchain.rs b/substrate/frame/election-provider-support/src/onchain.rs
index 1063d5d35ae..3478eec6c9d 100644
--- a/substrate/frame/election-provider-support/src/onchain.rs
+++ b/substrate/frame/election-provider-support/src/onchain.rs
@@ -20,27 +20,27 @@
//! careful when using it onchain.
use crate::{
- bounds::{DataProviderBounds, ElectionBounds, ElectionBoundsBuilder},
- BoundedSupportsOf, Debug, ElectionDataProvider, ElectionProvider, ElectionProviderBase,
- InstantElectionProvider, NposSolver, WeightInfo,
+ bounds::{ElectionBounds, ElectionBoundsBuilder},
+ BoundedSupportsOf, Debug, ElectionDataProvider, ElectionProvider, InstantElectionProvider,
+ NposSolver, PageIndex, VoterOf, WeightInfo,
};
-use alloc::collections::btree_map::BTreeMap;
+use alloc::{collections::btree_map::BTreeMap, vec::Vec};
use core::marker::PhantomData;
use frame_support::{dispatch::DispatchClass, traits::Get};
+use frame_system::pallet_prelude::BlockNumberFor;
use sp_npos_elections::{
- assignment_ratio_to_staked_normalized, to_supports, BoundedSupports, ElectionResult, VoteWeight,
+ assignment_ratio_to_staked_normalized, to_supports, ElectionResult, VoteWeight,
};
/// Errors of the on-chain election.
-#[derive(Eq, PartialEq, Debug)]
+#[derive(Eq, PartialEq, Debug, Clone)]
pub enum Error {
/// An internal error in the NPoS elections crate.
NposElections(sp_npos_elections::Error),
/// Errors from the data provider.
DataProvider(&'static str),
- /// Configurational error caused by `desired_targets` requested by data provider exceeding
- /// `MaxWinners`.
- TooManyWinners,
+ /// Results failed to meet the bounds.
+ FailedToBound,
}
impl From<sp_npos_elections::Error> for Error {
@@ -62,6 +62,12 @@ pub type BoundedExecution<T> = OnChainExecution<T>;
/// Configuration trait for an onchain election execution.
pub trait Config {
+ /// Whether to try and sort or not.
+ ///
+ /// If `true`, the supports will be sorted by descending total support to meet the bounds. If
+ /// `false`, `FailedToBound` error may be returned.
+ type Sort: Get<bool>;
+
/// Needed for weight registration.
type System: frame_system::Config;
@@ -71,6 +77,18 @@ pub trait Config {
Error = sp_npos_elections::Error,
>;
+ /// Maximum number of backers allowed per target.
+ ///
+ /// If the bounds are exceeded due to the data returned by the data provider, the election will
+ /// fail.
+ type MaxBackersPerWinner: Get<u32>;
+
+ /// Maximum number of winners in an election.
+ ///
+ /// If the bounds are exceeded due to the data returned by the data provider, the election will
+ /// fail.
+ type MaxWinnersPerPage: Get<u32>;
+
/// Something that provides the data for election.
type DataProvider: ElectionDataProvider<
AccountId = <Self::System as frame_system::Config>::AccountId,
@@ -80,102 +98,106 @@ pub trait Config {
/// Weight information for extrinsics in this pallet.
type WeightInfo: WeightInfo;
- /// Upper bound on maximum winners from electable targets.
- ///
- /// As noted in the documentation of [`ElectionProviderBase::MaxWinners`], this value should
- /// always be more than `DataProvider::desired_target`.
- type MaxWinners: Get<u32>;
-
/// Elections bounds, to use when calling into [`Config::DataProvider`]. It might be overwritten
/// in the `InstantElectionProvider` impl.
type Bounds: Get<ElectionBounds>;
}
-/// Same as `BoundedSupportsOf` but for `onchain::Config`.
-pub type OnChainBoundedSupportsOf<E> = BoundedSupports<
- <<E as Config>::System as frame_system::Config>::AccountId,
- <E as Config>::MaxWinners,
->;
-
-fn elect_with_input_bounds<T: Config>(
- bounds: ElectionBounds,
-) -> Result<OnChainBoundedSupportsOf<T>, Error> {
- let (voters, targets) = T::DataProvider::electing_voters(bounds.voters)
- .and_then(|voters| Ok((voters, T::DataProvider::electable_targets(bounds.targets)?)))
- .map_err(Error::DataProvider)?;
-
- let desired_targets = T::DataProvider::desired_targets().map_err(Error::DataProvider)?;
+impl<T: Config> OnChainExecution<T> {
+ fn elect_with_snapshot(
+ voters: Vec<VoterOf<T::DataProvider>>,
+ targets: Vec<<T::System as frame_system::Config>::AccountId>,
+ desired_targets: u32,
+ ) -> Result<BoundedSupportsOf<Self>, Error> {
+ if (desired_targets > T::MaxWinnersPerPage::get()) && !T::Sort::get() {
+ // early exit what will fail in the last line anyways.
+ return Err(Error::FailedToBound)
+ }
- if desired_targets > T::MaxWinners::get() {
- // early exit
- return Err(Error::TooManyWinners)
+ let voters_len = voters.len() as u32;
+ let targets_len = targets.len() as u32;
+
+ let stake_map: BTreeMap<_, _> = voters
+ .iter()
+ .map(|(validator, vote_weight, _)| (validator.clone(), *vote_weight))
+ .collect();
+
+ let stake_of = |w: &<T::System as frame_system::Config>::AccountId| -> VoteWeight {
+ stake_map.get(w).cloned().unwrap_or_default()
+ };
+
+ let ElectionResult { winners: _, assignments } =
+ T::Solver::solve(desired_targets as usize, targets, voters).map_err(Error::from)?;
+
+ let staked = assignment_ratio_to_staked_normalized(assignments, &stake_of)?;
+
+ let weight = T::Solver::weight::<T::WeightInfo>(
+ voters_len,
+ targets_len,
+ <T::DataProvider as ElectionDataProvider>::MaxVotesPerVoter::get(),
+ );
+ frame_system::Pallet::<T::System>::register_extra_weight_unchecked(
+ weight,
+ DispatchClass::Mandatory,
+ );
+
+ let unbounded = to_supports(&staked);
+ let bounded = if T::Sort::get() {
+ let (bounded, _winners_removed, _backers_removed) =
+ BoundedSupportsOf::<Self>::sorted_truncate_from(unbounded);
+ bounded
+ } else {
+ unbounded.try_into().map_err(|_| Error::FailedToBound)?
+ };
+ Ok(bounded)
}
- let voters_len = voters.len() as u32;
- let targets_len = targets.len() as u32;
-
- let stake_map: BTreeMap<_, _> = voters
- .iter()
- .map(|(validator, vote_weight, _)| (validator.clone(), *vote_weight))
- .collect();
-
- let stake_of = |w: &<T::System as frame_system::Config>::AccountId| -> VoteWeight {
- stake_map.get(w).cloned().unwrap_or_default()
- };
-
- let ElectionResult { winners: _, assignments } =
- T::Solver::solve(desired_targets as usize, targets, voters).map_err(Error::from)?;
-
- let staked = assignment_ratio_to_staked_normalized(assignments, &stake_of)?;
-
- let weight = T::Solver::weight::<T::WeightInfo>(
- voters_len,
- targets_len,
- <T::DataProvider as ElectionDataProvider>::MaxVotesPerVoter::get(),
- );
- frame_system::Pallet::<T::System>::register_extra_weight_unchecked(
- weight,
- DispatchClass::Mandatory,
- );
-
- // defensive: Since npos solver returns a result always bounded by `desired_targets`, this is
- // never expected to happen as long as npos solver does what is expected for it to do.
- let supports: OnChainBoundedSupportsOf<T> =
- to_supports(&staked).try_into().map_err(|_| Error::TooManyWinners)?;
-
- Ok(supports)
-}
-
-impl<T: Config> ElectionProviderBase for OnChainExecution<T> {
- type AccountId = <T::System as frame_system::Config>::AccountId;
- type BlockNumber = frame_system::pallet_prelude::BlockNumberFor<T::System>;
- type Error = Error;
- type MaxWinners = T::MaxWinners;
- type DataProvider = T::DataProvider;
+ fn elect_with(
+ bounds: ElectionBounds,
+ page: PageIndex,
+ ) -> Result<BoundedSupportsOf<Self>, Error> {
+ let (voters, targets) = T::DataProvider::electing_voters(bounds.voters, page)
+ .and_then(|voters| {
+ Ok((voters, T::DataProvider::electable_targets(bounds.targets, page)?))
+ })
+ .map_err(Error::DataProvider)?;
+ let desired_targets = T::DataProvider::desired_targets().map_err(Error::DataProvider)?;
+ Self::elect_with_snapshot(voters, targets, desired_targets)
+ }
}
impl<T: Config> InstantElectionProvider for OnChainExecution<T> {
fn instant_elect(
- forced_input_voters_bounds: DataProviderBounds,
- forced_input_targets_bounds: DataProviderBounds,
+ voters: Vec<VoterOf<T::DataProvider>>,
+ targets: Vec<<T::System as frame_system::Config>::AccountId>,
+ desired_targets: u32,
) -> Result<BoundedSupportsOf<Self>, Self::Error> {
- let elections_bounds = ElectionBoundsBuilder::from(T::Bounds::get())
- .voters_or_lower(forced_input_voters_bounds)
- .targets_or_lower(forced_input_targets_bounds)
- .build();
+ Self::elect_with_snapshot(voters, targets, desired_targets)
+ }
- elect_with_input_bounds::<T>(elections_bounds)
+ fn bother() -> bool {
+ true
}
}
impl<T: Config> ElectionProvider for OnChainExecution<T> {
- fn ongoing() -> bool {
- false
- }
+ type AccountId = <T::System as frame_system::Config>::AccountId;
+ type BlockNumber = BlockNumberFor<T::System>;
+ type Error = Error;
+ type MaxWinnersPerPage = T::MaxWinnersPerPage;
+ type MaxBackersPerWinner = T::MaxBackersPerWinner;
+ // can support any number of pages, as this is meant to be called "instantly". We don't care
+ // about this value here.
+ type Pages = sp_core::ConstU32<1>;
+ type DataProvider = T::DataProvider;
- fn elect() -> Result<BoundedSupportsOf<Self>, Self::Error> {
+ fn elect(page: PageIndex) -> Result<BoundedSupportsOf<Self>, Self::Error> {
let election_bounds = ElectionBoundsBuilder::from(T::Bounds::get()).build();
- elect_with_input_bounds::<T>(election_bounds)
+ Self::elect_with(election_bounds, page)
+ }
+
+ fn ongoing() -> bool {
+ false
}
}
@@ -184,6 +206,7 @@ mod tests {
use super::*;
use crate::{ElectionProvider, PhragMMS, SequentialPhragmen};
use frame_support::{assert_noop, derive_impl, parameter_types};
+ use sp_io::TestExternalities;
use sp_npos_elections::Support;
use sp_runtime::Perbill;
type AccountId = u64;
@@ -231,42 +254,50 @@ mod tests {
struct PhragMMSParams;
parameter_types! {
- pub static MaxWinners: u32 = 10;
+ pub static MaxWinnersPerPage: u32 = 10;
+ pub static MaxBackersPerWinner: u32 = 20;
pub static DesiredTargets: u32 = 2;
+ pub static Sort: bool = false;
pub static Bounds: ElectionBounds = ElectionBoundsBuilder::default().voters_count(600.into()).targets_count(400.into()).build();
}
impl Config for PhragmenParams {
+ type Sort = Sort;
type System = Runtime;
type Solver = SequentialPhragmen<AccountId, Perbill>;
type DataProvider = mock_data_provider::DataProvider;
- type WeightInfo = ();
- type MaxWinners = MaxWinners;
+ type MaxWinnersPerPage = MaxWinnersPerPage;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
type Bounds = Bounds;
+ type WeightInfo = ();
}
impl Config for PhragMMSParams {
+ type Sort = Sort;
type System = Runtime;
type Solver = PhragMMS<AccountId, Perbill>;
type DataProvider = mock_data_provider::DataProvider;
+ type MaxWinnersPerPage = MaxWinnersPerPage;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
type WeightInfo = ();
- type MaxWinners = MaxWinners;
type Bounds = Bounds;
}
mod mock_data_provider {
+ use super::*;
+ use crate::{data_provider, DataProviderBounds, PageIndex, VoterOf};
use frame_support::traits::ConstU32;
use sp_runtime::bounded_vec;
- use super::*;
- use crate::{data_provider, VoterOf};
-
pub struct DataProvider;
impl ElectionDataProvider for DataProvider {
type AccountId = AccountId;
type BlockNumber = BlockNumber;
type MaxVotesPerVoter = ConstU32<2>;
- fn electing_voters(_: DataProviderBounds) -> data_provider::Result<Vec<VoterOf<Self>>> {
+ fn electing_voters(
+ _: DataProviderBounds,
+ _page: PageIndex,
+ ) -> data_provider::Result<Vec<VoterOf<Self>>> {
Ok(vec![
(1, 10, bounded_vec![10, 20]),
(2, 20, bounded_vec![30, 20]),
@@ -274,7 +305,10 @@ mod tests {
])
}
- fn electable_targets(_: DataProviderBounds) -> data_provider::Result<Vec<AccountId>> {
+ fn electable_targets(
+ _: DataProviderBounds,
+ _page: PageIndex,
+ ) -> data_provider::Result<Vec<AccountId>> {
Ok(vec![10, 20, 30])
}
@@ -290,40 +324,101 @@ mod tests {
#[test]
fn onchain_seq_phragmen_works() {
- sp_io::TestExternalities::new_empty().execute_with(|| {
+ TestExternalities::new_empty().execute_with(|| {
+ let expected_supports = vec![
+ (
+ 10 as AccountId,
+ Support { total: 25, voters: vec![(1 as AccountId, 10), (3, 15)] },
+ ),
+ (30, Support { total: 35, voters: vec![(2, 20), (3, 15)] }),
+ ]
+ .try_into()
+ .unwrap();
+
assert_eq!(
- <OnChainExecution::<PhragmenParams> as ElectionProvider>::elect().unwrap(),
- vec![
- (10, Support { total: 25, voters: vec![(1, 10), (3, 15)] }),
- (30, Support { total: 35, voters: vec![(2, 20), (3, 15)] })
- ]
+ <OnChainExecution::<PhragmenParams> as ElectionProvider>::elect(0).unwrap(),
+ expected_supports,
);
})
}
#[test]
- fn too_many_winners_when_desired_targets_exceed_max_winners() {
- sp_io::TestExternalities::new_empty().execute_with(|| {
- // given desired targets larger than max winners
- DesiredTargets::set(10);
- MaxWinners::set(9);
+ fn sorting_false_works() {
+ TestExternalities::new_empty().execute_with(|| {
+ // Default results would have 3 targets, but we allow for only 2.
+ DesiredTargets::set(3);
+ MaxWinnersPerPage::set(2);
+
+ assert_noop!(
+ <OnChainExecution::<PhragmenParams> as ElectionProvider>::elect(0),
+ Error::FailedToBound,
+ );
+ });
+
+ TestExternalities::new_empty().execute_with(|| {
+ // Default results would have 2 backers per winner
+ MaxBackersPerWinner::set(1);
assert_noop!(
- <OnChainExecution::<PhragmenParams> as ElectionProvider>::elect(),
- Error::TooManyWinners,
+ <OnChainExecution::<PhragmenParams> as ElectionProvider>::elect(0),
+ Error::FailedToBound,
+ );
+ });
+ }
+
+ #[test]
+ fn sorting_true_works_winners() {
+ Sort::set(true);
+
+ TestExternalities::new_empty().execute_with(|| {
+ let expected_supports =
+ vec![(30, Support { total: 35, voters: vec![(2, 20), (3, 15)] })]
+ .try_into()
+ .unwrap();
+
+ // we want to allow 1 winner only, and allow sorting.
+ MaxWinnersPerPage::set(1);
+
+ assert_eq!(
+ <OnChainExecution::<PhragmenParams> as ElectionProvider>::elect(0).unwrap(),
+ expected_supports,
+ );
+ });
+
+ MaxWinnersPerPage::set(10);
+
+ TestExternalities::new_empty().execute_with(|| {
+ let expected_supports = vec![
+ (30, Support { total: 20, voters: vec![(2, 20)] }),
+ (10 as AccountId, Support { total: 15, voters: vec![(3 as AccountId, 15)] }),
+ ]
+ .try_into()
+ .unwrap();
+
+ // we want to allow 2 winners only but 1 backer each, and allow sorting.
+ MaxBackersPerWinner::set(1);
+
+ assert_eq!(
+ <OnChainExecution::<PhragmenParams> as ElectionProvider>::elect(0).unwrap(),
+ expected_supports,
);
})
}
#[test]
fn onchain_phragmms_works() {
- sp_io::TestExternalities::new_empty().execute_with(|| {
+ TestExternalities::new_empty().execute_with(|| {
assert_eq!(
- <OnChainExecution::<PhragMMSParams> as ElectionProvider>::elect().unwrap(),
+ <OnChainExecution::<PhragMMSParams> as ElectionProvider>::elect(0).unwrap(),
vec![
- (10, Support { total: 25, voters: vec![(1, 10), (3, 15)] }),
+ (
+ 10 as AccountId,
+ Support { total: 25, voters: vec![(1 as AccountId, 10), (3, 15)] }
+ ),
(30, Support { total: 35, voters: vec![(2, 20), (3, 15)] })
]
+ .try_into()
+ .unwrap()
);
})
}
diff --git a/substrate/frame/election-provider-support/src/tests.rs b/substrate/frame/election-provider-support/src/tests.rs
index 6e3deb9e383..de4bac3664b 100644
--- a/substrate/frame/election-provider-support/src/tests.rs
+++ b/substrate/frame/election-provider-support/src/tests.rs
@@ -18,10 +18,10 @@
//! Tests for solution-type.
#![cfg(test)]
-
-use crate::{mock::*, IndexAssignment, NposSolution};
+use crate::{mock::*, BoundedSupports, IndexAssignment, NposSolution};
use frame_support::traits::ConstU32;
use rand::SeedableRng;
+use sp_npos_elections::{Support, Supports};
mod solution_type {
use super::*;
@@ -452,3 +452,29 @@ fn index_assignments_generate_same_solution_as_plain_assignments() {
assert_eq!(solution, index_compact);
}
+
+#[test]
+fn sorted_truncate_from_works() {
+ let supports: Supports<u32> = vec![
+ (1, Support { total: 303, voters: vec![(100, 100), (101, 101), (102, 102)] }),
+ (2, Support { total: 201, voters: vec![(100, 100), (101, 101)] }),
+ (3, Support { total: 406, voters: vec![(100, 100), (101, 101), (102, 102), (103, 103)] }),
+ ];
+
+ let (bounded, winners_removed, backers_removed) =
+ BoundedSupports::<u32, ConstU32<2>, ConstU32<2>>::sorted_truncate_from(supports);
+ // we trim 2 as it has least total support, and trim backers based on stake.
+ assert_eq!(
+ bounded
+ .clone()
+ .into_iter()
+ .map(|(k, v)| (k, Support { total: v.total, voters: v.voters.into_inner() }))
+ .collect::<Vec<_>>(),
+ vec![
+ (3, Support { total: 205, voters: vec![(103, 103), (102, 102)] }),
+ (1, Support { total: 203, voters: vec![(102, 102), (101, 101)] })
+ ]
+ );
+ assert_eq!(winners_removed, 1);
+ assert_eq!(backers_removed, 3);
+}
diff --git a/substrate/frame/election-provider-support/src/traits.rs b/substrate/frame/election-provider-support/src/traits.rs
index 84fd57992d3..d8ffd41d8ae 100644
--- a/substrate/frame/election-provider-support/src/traits.rs
+++ b/substrate/frame/election-provider-support/src/traits.rs
@@ -42,6 +42,8 @@ where
+ Clone
+ Bounded
+ Encode
+ + Ord
+ + PartialOrd
+ TypeInfo;
/// The target type. Needs to be an index (convert to usize).
@@ -53,6 +55,8 @@ where
+ Clone
+ Bounded
+ Encode
+ + Ord
+ + PartialOrd
+ TypeInfo;
/// The weight/accuracy type of each vote.
@@ -123,4 +127,23 @@ where
voter_at: impl Fn(Self::VoterIndex) -> Option<A>,
target_at: impl Fn(Self::TargetIndex) -> Option<A>,
) -> Result<Vec<Assignment<A, Self::Accuracy>>, Error>;
+
+ /// Sort self by the means of the given function.
+ ///
+ /// This might be helpful to allow for easier trimming.
+ fn sort<F>(&mut self, voter_stake: F)
+ where
+ F: FnMut(&Self::VoterIndex) -> VoteWeight;
+
+ /// Remove the least staked voter.
+ ///
+ /// This is ONLY sensible to do if [`Self::sort`] has been called on the struct at least once.
+ fn remove_weakest_sorted<F>(&mut self, voter_stake: F) -> Option<Self::VoterIndex>
+ where
+ F: FnMut(&Self::VoterIndex) -> VoteWeight;
+
+ /// Make this solution corrupt. This should set the index of a voter to `Bounded::max_value()`.
+ ///
+ /// Obviously, this is only useful for testing.
+ fn corrupt(&mut self);
}
diff --git a/substrate/frame/elections-phragmen/src/benchmarking.rs b/substrate/frame/elections-phragmen/src/benchmarking.rs
index 60771fa89ad..6e8850aca9d 100644
--- a/substrate/frame/elections-phragmen/src/benchmarking.rs
+++ b/substrate/frame/elections-phragmen/src/benchmarking.rs
@@ -71,7 +71,10 @@ fn submit_candidates<T: Config>(
RawOrigin::Signed(account.clone()).into(),
candidate_count::<T>(),
)
- .map_err(|_| "failed to submit candidacy")?;
+ .map_err(|e| {
+ log::error!(target: crate::LOG_TARGET, "failed to submit candidacy: {:?}", e);
+ "failed to submit candidacy"
+ })?;
Ok(account)
})
.collect::<Result<_, _>>()
@@ -152,6 +155,10 @@ mod benchmarks {
// -- Signed ones
#[benchmark]
fn vote_equal(v: Linear<1, { T::MaxVotesPerVoter::get() }>) -> Result<(), BenchmarkError> {
+ assert!(
+ T::MaxCandidates::get() > T::MaxVotesPerVoter::get(),
+ "MaxCandidates should be more than MaxVotesPerVoter"
+ );
clean::<T>();
// create a bunch of candidates.
@@ -459,6 +466,9 @@ mod benchmarks {
let all_candidates = submit_candidates_with_self_vote::<T>(c, "candidates")?;
let _ =
distribute_voters::<T>(all_candidates, v.saturating_sub(c), votes_per_voter as usize)?;
+ log::info!(target: crate::LOG_TARGET, "[v = {:?}]voters: {:?}",v, v.saturating_sub(c));
+ log::info!(target: crate::LOG_TARGET, "votes_per_voter: {:?}",votes_per_voter);
+ log::info!(target: crate::LOG_TARGET, "candidates: {:?}",c);
#[block]
{
diff --git a/substrate/frame/fast-unstake/src/mock.rs b/substrate/frame/fast-unstake/src/mock.rs
index 67f7ee21e61..5d8aed59ff6 100644
--- a/substrate/frame/fast-unstake/src/mock.rs
+++ b/substrate/frame/fast-unstake/src/mock.rs
@@ -16,6 +16,7 @@
// limitations under the License.
use crate::{self as fast_unstake};
+use frame_election_provider_support::PageIndex;
use frame_support::{
assert_ok, derive_impl,
pallet_prelude::*,
@@ -82,25 +83,28 @@ parameter_types! {
pub static BondingDuration: u32 = 3;
pub static CurrentEra: u32 = 0;
pub static Ongoing: bool = false;
- pub static MaxWinners: u32 = 100;
}
pub struct MockElection;
-impl frame_election_provider_support::ElectionProviderBase for MockElection {
- type AccountId = AccountId;
+
+impl frame_election_provider_support::ElectionProvider for MockElection {
type BlockNumber = BlockNumber;
- type MaxWinners = MaxWinners;
+ type AccountId = AccountId;
type DataProvider = Staking;
+ type MaxBackersPerWinner = ConstU32<100>;
+ type MaxWinnersPerPage = ConstU32<100>;
+ type Pages = ConstU32<1>;
type Error = ();
-}
-impl frame_election_provider_support::ElectionProvider for MockElection {
+ fn elect(
+ _remaining_pages: PageIndex,
+ ) -> Result<frame_election_provider_support::BoundedSupportsOf<Self>, Self::Error> {
+ Err(())
+ }
+
fn ongoing() -> bool {
Ongoing::get()
}
- fn elect() -> Result<frame_election_provider_support::BoundedSupportsOf<Self>, Self::Error> {
- Err(())
- }
}
#[derive_impl(pallet_staking::config_preludes::TestDefaultConfig)]
@@ -200,7 +204,7 @@ impl ExtBuilder {
(v, Exposure { total: 0, own: 0, others })
})
.for_each(|(validator, exposure)| {
- pallet_staking::EraInfo::<T>::set_exposure(era, &validator, exposure);
+ pallet_staking::EraInfo::<T>::upsert_exposure(era, &validator, exposure);
});
}
@@ -300,7 +304,7 @@ pub fn create_exposed_nominator(exposed: AccountId, era: u32) {
// create an exposed nominator in passed era
let mut exposure = pallet_staking::EraInfo::<T>::get_full_exposure(era, &VALIDATORS_PER_ERA);
exposure.others.push(IndividualExposure { who: exposed, value: 0 as Balance });
- pallet_staking::EraInfo::<T>::set_exposure(era, &VALIDATORS_PER_ERA, exposure);
+ pallet_staking::EraInfo::<T>::upsert_exposure(era, &VALIDATORS_PER_ERA, exposure);
Balances::make_free_balance_be(&exposed, 100);
assert_ok!(Staking::bond(
diff --git a/substrate/frame/grandpa/Cargo.toml b/substrate/frame/grandpa/Cargo.toml
index 4072d65b626..8fe651de43d 100644
--- a/substrate/frame/grandpa/Cargo.toml
+++ b/substrate/frame/grandpa/Cargo.toml
@@ -42,6 +42,7 @@ pallet-staking = { workspace = true, default-features = true }
pallet-staking-reward-curve = { workspace = true, default-features = true }
pallet-timestamp = { workspace = true, default-features = true }
sp-keyring = { workspace = true, default-features = true }
+sp-tracing = { workspace = true, default-features = true }
[features]
default = ["std"]
diff --git a/substrate/frame/grandpa/src/mock.rs b/substrate/frame/grandpa/src/mock.rs
index cb754fb7955..a14bdc9d73b 100644
--- a/substrate/frame/grandpa/src/mock.rs
+++ b/substrate/frame/grandpa/src/mock.rs
@@ -32,14 +32,14 @@ use frame_support::{
};
use pallet_session::historical as pallet_session_historical;
use sp_consensus_grandpa::{RoundNumber, SetId, GRANDPA_ENGINE_ID};
-use sp_core::H256;
+use sp_core::{ConstBool, H256};
use sp_keyring::Ed25519Keyring;
use sp_runtime::{
curve::PiecewiseLinear,
impl_opaque_keys,
testing::{TestXt, UintAuthorityId},
traits::OpaqueKeys,
- BuildStorage, DigestItem, Perbill,
+ BoundedVec, BuildStorage, DigestItem, Perbill,
};
use sp_staking::{EraIndex, SessionIndex};
@@ -155,7 +155,9 @@ impl onchain::Config for OnChainSeqPhragmen {
type Solver = SequentialPhragmen<u64, Perbill>;
type DataProvider = Staking;
type WeightInfo = ();
- type MaxWinners = ConstU32<100>;
+ type MaxWinnersPerPage = ConstU32<100>;
+ type MaxBackersPerWinner = ConstU32<100>;
+ type Sort = ConstBool<true>;
type Bounds = ElectionsBoundsOnChain;
}
@@ -222,6 +224,7 @@ pub fn new_test_ext(vec: Vec<(u64, u64)>) -> sp_io::TestExternalities {
}
pub fn new_test_ext_raw_authorities(authorities: AuthorityList) -> sp_io::TestExternalities {
+ sp_tracing::try_init_simple();
let mut t = frame_system::GenesisConfig::<Test>::default().build_storage().unwrap();
let balances: Vec<_> = (0..authorities.len()).map(|i| (i as u64, 10_000_000)).collect();
@@ -259,7 +262,7 @@ pub fn new_test_ext_raw_authorities(authorities: AuthorityList) -> sp_io::TestEx
validator_count: 8,
force_era: pallet_staking::Forcing::ForceNew,
minimum_validator_count: 0,
- invulnerables: vec![],
+ invulnerables: BoundedVec::new(),
..Default::default()
};
@@ -288,8 +291,9 @@ pub fn start_session(session_index: SessionIndex) {
Timestamp::set_timestamp(System::block_number() * 6000);
System::on_initialize(System::block_number());
- Session::on_initialize(System::block_number());
+ // staking has to be initialized before session as per the multi-block staking PR.
Staking::on_initialize(System::block_number());
+ Session::on_initialize(System::block_number());
Grandpa::on_initialize(System::block_number());
}
diff --git a/substrate/frame/nomination-pools/benchmarking/src/mock.rs b/substrate/frame/nomination-pools/benchmarking/src/mock.rs
index 39ff6fb7a09..2e73ad7cf4f 100644
--- a/substrate/frame/nomination-pools/benchmarking/src/mock.rs
+++ b/substrate/frame/nomination-pools/benchmarking/src/mock.rs
@@ -85,7 +85,7 @@ impl pallet_staking::Config for Runtime {
type AdminOrigin = frame_system::EnsureRoot<Self::AccountId>;
type EraPayout = pallet_staking::ConvertCurve<RewardCurve>;
type ElectionProvider =
- frame_election_provider_support::NoElection<(AccountId, BlockNumber, Staking, ())>;
+ frame_election_provider_support::NoElection<(AccountId, BlockNumber, Staking, (), ())>;
type GenesisElectionProvider = Self::ElectionProvider;
type VoterList = VoterList;
type TargetList = pallet_staking::UseValidatorsMap<Self>;
diff --git a/substrate/frame/nomination-pools/test-delegate-stake/src/mock.rs b/substrate/frame/nomination-pools/test-delegate-stake/src/mock.rs
index 77a57e5a815..84d23a994e6 100644
--- a/substrate/frame/nomination-pools/test-delegate-stake/src/mock.rs
+++ b/substrate/frame/nomination-pools/test-delegate-stake/src/mock.rs
@@ -102,7 +102,7 @@ impl pallet_staking::Config for Runtime {
type BondingDuration = BondingDuration;
type EraPayout = pallet_staking::ConvertCurve<RewardCurve>;
type ElectionProvider =
- frame_election_provider_support::NoElection<(AccountId, BlockNumber, Staking, ())>;
+ frame_election_provider_support::NoElection<(AccountId, BlockNumber, Staking, (), ())>;
type GenesisElectionProvider = Self::ElectionProvider;
type VoterList = VoterList;
type TargetList = pallet_staking::UseValidatorsMap<Self>;
diff --git a/substrate/frame/offences/benchmarking/src/mock.rs b/substrate/frame/offences/benchmarking/src/mock.rs
index 3c81f2a664e..46a4e18c5e8 100644
--- a/substrate/frame/offences/benchmarking/src/mock.rs
+++ b/substrate/frame/offences/benchmarking/src/mock.rs
@@ -111,6 +111,7 @@ pallet_staking_reward_curve::build! {
parameter_types! {
pub const RewardCurve: &'static sp_runtime::curve::PiecewiseLinear<'static> = &I_NPOS;
pub static ElectionsBounds: ElectionBounds = ElectionBoundsBuilder::default().build();
+ pub const Sort: bool = true;
}
pub struct OnChainSeqPhragmen;
@@ -119,7 +120,9 @@ impl onchain::Config for OnChainSeqPhragmen {
type Solver = SequentialPhragmen<AccountId, Perbill>;
type DataProvider = Staking;
type WeightInfo = ();
- type MaxWinners = ConstU32<100>;
+ type MaxWinnersPerPage = ConstU32<100>;
+ type MaxBackersPerWinner = ConstU32<100>;
+ type Sort = Sort;
type Bounds = ElectionsBounds;
}
diff --git a/substrate/frame/root-offences/src/mock.rs b/substrate/frame/root-offences/src/mock.rs
index 9b319cabb09..2303221c881 100644
--- a/substrate/frame/root-offences/src/mock.rs
+++ b/substrate/frame/root-offences/src/mock.rs
@@ -26,8 +26,10 @@ use frame_election_provider_support::{
use frame_support::{
derive_impl, parameter_types,
traits::{ConstU32, ConstU64, OneSessionHandler},
+ BoundedVec,
};
use pallet_staking::StakerStatus;
+use sp_core::ConstBool;
use sp_runtime::{curve::PiecewiseLinear, testing::UintAuthorityId, traits::Zero, BuildStorage};
use sp_staking::{EraIndex, SessionIndex};
@@ -110,7 +112,9 @@ impl onchain::Config for OnChainSeqPhragmen {
type Solver = SequentialPhragmen<AccountId, Perbill>;
type DataProvider = Staking;
type WeightInfo = ();
- type MaxWinners = ConstU32<100>;
+ type MaxWinnersPerPage = ConstU32<100>;
+ type MaxBackersPerWinner = ConstU32<100>;
+ type Sort = ConstBool<true>;
type Bounds = ElectionsBounds;
}
@@ -180,7 +184,7 @@ impl Config for Test {
pub struct ExtBuilder {
validator_count: u32,
minimum_validator_count: u32,
- invulnerables: Vec<AccountId>,
+ invulnerables: BoundedVec<AccountId, <Test as pallet_staking::Config>::MaxInvulnerables>,
balance_factor: Balance,
}
@@ -189,7 +193,7 @@ impl Default for ExtBuilder {
Self {
validator_count: 2,
minimum_validator_count: 0,
- invulnerables: vec![],
+ invulnerables: BoundedVec::new(),
balance_factor: 1,
}
}
diff --git a/substrate/frame/session/benchmarking/src/inner.rs b/substrate/frame/session/benchmarking/src/inner.rs
index 9789b6bb593..8fda2bb4655 100644
--- a/substrate/frame/session/benchmarking/src/inner.rs
+++ b/substrate/frame/session/benchmarking/src/inner.rs
@@ -58,6 +58,7 @@ mod benchmarks {
false,
true,
RewardDestination::Staked,
+ pallet_staking::CurrentEra::<T>::get().unwrap_or_default(),
)?;
let v_controller = pallet_staking::Pallet::<T>::bonded(&v_stash).ok_or("not stash")?;
@@ -82,6 +83,7 @@ mod benchmarks {
false,
true,
RewardDestination::Staked,
+ pallet_staking::CurrentEra::<T>::get().unwrap_or_default(),
)?;
let v_controller = pallet_staking::Pallet::<T>::bonded(&v_stash).ok_or("not stash")?;
let keys = T::Keys::decode(&mut TrailingZeroInput::zeroes()).unwrap();
diff --git a/substrate/frame/session/benchmarking/src/mock.rs b/substrate/frame/session/benchmarking/src/mock.rs
index 74201da3d2f..b0681f5aa00 100644
--- a/substrate/frame/session/benchmarking/src/mock.rs
+++ b/substrate/frame/session/benchmarking/src/mock.rs
@@ -119,6 +119,7 @@ pallet_staking_reward_curve::build! {
parameter_types! {
pub const RewardCurve: &'static sp_runtime::curve::PiecewiseLinear<'static> = &I_NPOS;
pub static ElectionsBounds: ElectionBounds = ElectionBoundsBuilder::default().build();
+ pub const Sort: bool = true;
}
pub struct OnChainSeqPhragmen;
@@ -127,7 +128,9 @@ impl onchain::Config for OnChainSeqPhragmen {
type Solver = SequentialPhragmen<AccountId, sp_runtime::Perbill>;
type DataProvider = Staking;
type WeightInfo = ();
- type MaxWinners = ConstU32<100>;
+ type MaxWinnersPerPage = ConstU32<100>;
+ type MaxBackersPerWinner = ConstU32<100>;
+ type Sort = Sort;
type Bounds = ElectionsBounds;
}
diff --git a/substrate/frame/session/src/lib.rs b/substrate/frame/session/src/lib.rs
index e8b4a355f49..98ce774e428 100644
--- a/substrate/frame/session/src/lib.rs
+++ b/substrate/frame/session/src/lib.rs
@@ -639,13 +639,12 @@ impl<T: Config> Pallet<T> {
/// punishment after a fork.
pub fn rotate_session() {
let session_index = CurrentIndex::<T>::get();
- log::trace!(target: "runtime::session", "rotating session {:?}", session_index);
-
let changed = QueuedChanged::<T>::get();
// Inform the session handlers that a session is going to end.
T::SessionHandler::on_before_session_ending();
T::SessionManager::end_session(session_index);
+ log::trace!(target: "runtime::session", "ending_session {:?}", session_index);
// Get queued session keys and validators.
let session_keys = QueuedKeys::<T>::get();
@@ -661,11 +660,17 @@ impl<T: Config> Pallet<T> {
// Increment session index.
let session_index = session_index + 1;
CurrentIndex::<T>::put(session_index);
-
T::SessionManager::start_session(session_index);
+ log::trace!(target: "runtime::session", "starting_session {:?}", session_index);
// Get next validator set.
let maybe_next_validators = T::SessionManager::new_session(session_index + 1);
+ log::trace!(
+ target: "runtime::session",
+ "planning_session {:?} with {:?} validators",
+ session_index + 1,
+ maybe_next_validators.as_ref().map(|v| v.len())
+ );
let (next_validators, next_identities_changed) =
if let Some(validators) = maybe_next_validators {
// NOTE: as per the documentation on `OnSessionEnding`, we consider
diff --git a/substrate/frame/staking/Cargo.toml b/substrate/frame/staking/Cargo.toml
index 74b1c78e9cb..ee69c29af16 100644
--- a/substrate/frame/staking/Cargo.toml
+++ b/substrate/frame/staking/Cargo.toml
@@ -27,16 +27,18 @@ pallet-authorship = { workspace = true }
pallet-session = { features = [
"historical",
], workspace = true }
+rand = { features = ["alloc"], workspace = true }
+rand_chacha = { workspace = true }
scale-info = { features = ["derive", "serde"], workspace = true }
serde = { features = ["alloc", "derive"], workspace = true }
sp-application-crypto = { features = ["serde"], workspace = true }
+sp-core = { workspace = true }
sp-io = { workspace = true }
sp-runtime = { features = ["serde"], workspace = true }
sp-staking = { features = ["serde"], workspace = true }
# Optional imports for benchmarking
frame-benchmarking = { optional = true, workspace = true }
-rand_chacha = { optional = true, workspace = true }
[dev-dependencies]
frame-benchmarking = { workspace = true, default-features = true }
@@ -47,7 +49,6 @@ pallet-balances = { workspace = true, default-features = true }
pallet-staking-reward-curve = { workspace = true, default-features = true }
pallet-timestamp = { workspace = true, default-features = true }
rand_chacha = { workspace = true, default-features = true }
-sp-core = { workspace = true, default-features = true }
sp-npos-elections = { workspace = true, default-features = true }
sp-tracing = { workspace = true, default-features = true }
substrate-test-utils = { workspace = true }
@@ -66,10 +67,13 @@ std = [
"pallet-balances/std",
"pallet-session/std",
"pallet-timestamp/std",
+ "rand/std",
+ "rand_chacha/std",
"scale-info/std",
"serde/std",
"sp-application-crypto/std",
"sp-core/std",
+ "sp-core/std",
"sp-io/std",
"sp-npos-elections/std",
"sp-runtime/std",
@@ -84,7 +88,6 @@ runtime-benchmarks = [
"pallet-bags-list/runtime-benchmarks",
"pallet-balances/runtime-benchmarks",
"pallet-timestamp/runtime-benchmarks",
- "rand_chacha",
"sp-runtime/runtime-benchmarks",
"sp-staking/runtime-benchmarks",
]
diff --git a/substrate/frame/staking/src/benchmarking.rs b/substrate/frame/staking/src/benchmarking.rs
index 59d272168d6..0d084629d66 100644
--- a/substrate/frame/staking/src/benchmarking.rs
+++ b/substrate/frame/staking/src/benchmarking.rs
@@ -19,32 +19,32 @@
use super::*;
use crate::{asset, ConfigOp, Pallet as Staking};
-use testing_utils::*;
-
use codec::Decode;
+pub use frame_benchmarking::{
+ impl_benchmark_test_suite, v2::*, whitelist_account, whitelisted_caller, BenchmarkError,
+};
use frame_election_provider_support::{bounds::DataProviderBounds, SortedListProvider};
use frame_support::{
pallet_prelude::*,
storage::bounded_vec::BoundedVec,
- traits::{Get, Imbalance, UnfilteredDispatchable},
+ traits::{Get, Imbalance},
};
+use frame_system::RawOrigin;
use sp_runtime::{
traits::{Bounded, One, StaticLookup, TrailingZeroInput, Zero},
Perbill, Percent, Saturating,
};
use sp_staking::{currency_to_vote::CurrencyToVote, SessionIndex};
-
-pub use frame_benchmarking::{
- impl_benchmark_test_suite, v2::*, whitelist_account, whitelisted_caller, BenchmarkError,
-};
-use frame_system::RawOrigin;
+use testing_utils::*;
const SEED: u32 = 0;
const MAX_SPANS: u32 = 100;
const MAX_SLASHES: u32 = 1000;
-type MaxValidators<T> = <<T as Config>::BenchmarkingConfig as BenchmarkingConfig>::MaxValidators;
-type MaxNominators<T> = <<T as Config>::BenchmarkingConfig as BenchmarkingConfig>::MaxNominators;
+type BenchMaxValidators<T> =
+ <<T as Config>::BenchmarkingConfig as BenchmarkingConfig>::MaxValidators;
+type BenchMaxNominators<T> =
+ <<T as Config>::BenchmarkingConfig as BenchmarkingConfig>::MaxNominators;
// Add slashing spans to a user account. Not relevant for actual use, only to benchmark
// read and write operations.
@@ -73,6 +73,7 @@ pub fn create_validator_with_nominators<T: Config>(
dead_controller: bool,
unique_controller: bool,
destination: RewardDestination<T::AccountId>,
+ era: u32,
) -> Result<(T::AccountId, Vec<(T::AccountId, T::AccountId)>), &'static str> {
// Clean up any existing state.
clear_validators_and_nominators::<T>();
@@ -113,9 +114,16 @@ pub fn create_validator_with_nominators<T: Config>(
}
ValidatorCount::<T>::put(1);
+ MinimumValidatorCount::<T>::put(1);
+
+ // Start a new (genesis) Era
+ // populate electable stashes as it gets read within `try_plan_new_era`
- // Start a new Era
- let new_validators = Staking::<T>::try_trigger_new_era(SessionIndex::one(), true).unwrap();
+ // ElectableStashes::<T>::put(
+ // BoundedBTreeSet::try_from(vec![v_stash.clone()].into_iter().collect::<BTreeSet<_>>())
+ // .unwrap(),
+ // );
+ let new_validators = Staking::<T>::try_plan_new_era(SessionIndex::one(), true).unwrap();
assert_eq!(new_validators.len(), 1);
assert_eq!(new_validators[0], v_stash, "Our validator was not selected!");
@@ -128,14 +136,13 @@ pub fn create_validator_with_nominators<T: Config>(
individual: points_individual.into_iter().collect(),
};
- let current_era = CurrentEra::<T>::get().unwrap();
- ErasRewardPoints::<T>::insert(current_era, reward);
+ ErasRewardPoints::<T>::insert(era, reward);
// Create reward pool
let total_payout = asset::existential_deposit::<T>()
.saturating_mul(upper_bound.into())
.saturating_mul(1000u32.into());
- <ErasValidatorReward<T>>::insert(current_era, total_payout);
+ <ErasValidatorReward<T>>::insert(era, total_payout);
Ok((v_stash, nominators))
}
@@ -223,6 +230,123 @@ const USER_SEED: u32 = 999666;
mod benchmarks {
use super::*;
+ #[benchmark]
+ fn on_initialize_noop() {
+ assert!(ElectableStashes::<T>::get().is_empty());
+ assert_eq!(NextElectionPage::<T>::get(), None);
+
+ #[block]
+ {
+ Pallet::<T>::on_initialize(1_u32.into());
+ }
+
+ assert!(ElectableStashes::<T>::get().is_empty());
+ assert_eq!(NextElectionPage::<T>::get(), None);
+ }
+
+ #[benchmark]
+ fn do_elect_paged_inner(
+ v: Linear<1, { T::MaxValidatorSet::get() }>,
+ ) -> Result<(), BenchmarkError> {
+ // TODO: re-benchmark this
+ // use frame_election_provider_support::{
+ // BoundedSupport, BoundedSupportsOf, ElectionProvider,
+ // };
+ // let mut bounded_random_supports = BoundedSupportsOf::<T::ElectionProvider>::default();
+ // for i in 0..v {
+ // let backed = account("validator", i, SEED);
+ // let mut total = 0;
+ // let voters = (0..<T::ElectionProvider as ElectionProvider>::MaxBackersPerWinner::get())
+ // .map(|j| {
+ // let voter = account("nominator", j, SEED);
+ // let support = 100000;
+ // total += support;
+ // (voter, support)
+ // })
+ // .collect::<Vec<_>>()
+ // .try_into()
+ // .unwrap();
+ // bounded_random_supports
+ // .try_push((backed, BoundedSupport { total, voters }))
+ // .map_err(|_| "bound failed")
+ // .expect("map is over the correct bound");
+ // }
+
+ #[block]
+ {
+ // assert_eq!(Pallet::<T>::do_elect_paged_inner(bounded_random_supports), Ok(v as
+ // usize));
+ }
+
+ // assert!(!ElectableStashes::<T>::get().is_empty());
+
+ Ok(())
+ }
+
+ #[benchmark]
+ fn get_npos_voters(
+ // number of validator intention. we will iterate all of them.
+ v: Linear<{ BenchMaxValidators::<T>::get() / 2 }, { BenchMaxValidators::<T>::get() }>,
+
+ // number of nominator intention. we will iterate all of them.
+ n: Linear<{ BenchMaxNominators::<T>::get() / 2 }, { BenchMaxNominators::<T>::get() }>,
+ ) -> Result<(), BenchmarkError> {
+ create_validators_with_nominators_for_era::<T>(
+ v,
+ n,
+ MaxNominationsOf::<T>::get() as usize,
+ false,
+ None,
+ )?;
+
+ assert_eq!(Validators::<T>::count(), v);
+ assert_eq!(Nominators::<T>::count(), n);
+
+ let num_voters = (v + n) as usize;
+
+ // default bounds are unbounded.
+ let voters;
+ #[block]
+ {
+ voters = <Staking<T>>::get_npos_voters(
+ DataProviderBounds::default(),
+ &SnapshotStatus::<T::AccountId>::Waiting,
+ );
+ }
+
+ assert_eq!(voters.len(), num_voters);
+
+ Ok(())
+ }
+
+ #[benchmark]
+ fn get_npos_targets(
+ // number of validator intention.
+ v: Linear<{ BenchMaxValidators::<T>::get() / 2 }, { BenchMaxValidators::<T>::get() }>,
+ ) -> Result<(), BenchmarkError> {
+ // number of nominator intention.
+ let n = BenchMaxNominators::<T>::get();
+ create_validators_with_nominators_for_era::<T>(
+ v,
+ n,
+ MaxNominationsOf::<T>::get() as usize,
+ false,
+ None,
+ )?;
+
+ let targets;
+
+ #[block]
+ {
+ // default bounds are unbounded.
+ targets = <Staking<T>>::get_npos_targets(DataProviderBounds::default());
+ }
+
+ assert_eq!(targets.len() as u32, v);
+
+ Ok(())
+ }
+
#[benchmark]
fn bond() {
let stash = create_funded_user::<T>("stash", USER_SEED, 100);
@@ -569,7 +693,7 @@ mod benchmarks {
#[benchmark]
fn set_validator_count() {
- let validator_count = MaxValidators::<T>::get();
+ let validator_count = BenchMaxValidators::<T>::get();
#[extrinsic_call]
_(RawOrigin::Root, validator_count);
@@ -603,7 +727,7 @@ mod benchmarks {
#[benchmark]
// Worst case scenario, the list of invulnerables is very long.
- fn set_invulnerables(v: Linear<0, { MaxValidators::<T>::get() }>) {
+ fn set_invulnerables(v: Linear<0, { T::MaxInvulnerables::get() }>) {
let mut invulnerables = Vec::new();
for i in 0..v {
invulnerables.push(account("invulnerable", i, SEED));
@@ -699,15 +823,20 @@ mod benchmarks {
fn payout_stakers_alive_staked(
n: Linear<0, { T::MaxExposurePageSize::get() as u32 }>,
) -> Result<(), BenchmarkError> {
+ // reset genesis era 0 so that triggering the new genesis era works as expected.
+ CurrentEra::<T>::set(Some(0));
+ let current_era = CurrentEra::<T>::get().unwrap();
+ Staking::<T>::clear_era_information(current_era);
+
let (validator, nominators) = create_validator_with_nominators::<T>(
n,
T::MaxExposurePageSize::get() as u32,
false,
true,
RewardDestination::Staked,
+ current_era,
)?;
- let current_era = CurrentEra::<T>::get().unwrap();
// set the commission for this particular era as well.
<ErasValidatorPrefs<T>>::insert(
current_era,
@@ -822,91 +951,6 @@ mod benchmarks {
Ok(())
}
- #[benchmark]
- fn new_era(v: Linear<1, 10>, n: Linear<0, 100>) -> Result<(), BenchmarkError> {
- create_validators_with_nominators_for_era::<T>(
- v,
- n,
- MaxNominationsOf::<T>::get() as usize,
- false,
- None,
- )?;
- let session_index = SessionIndex::one();
-
- let validators;
- #[block]
- {
- validators =
- Staking::<T>::try_trigger_new_era(session_index, true).ok_or("`new_era` failed")?;
- }
-
- assert!(validators.len() == v as usize);
-
- Ok(())
- }
-
- #[benchmark(extra)]
- fn payout_all(v: Linear<1, 10>, n: Linear<0, 100>) -> Result<(), BenchmarkError> {
- create_validators_with_nominators_for_era::<T>(
- v,
- n,
- MaxNominationsOf::<T>::get() as usize,
- false,
- None,
- )?;
- // Start a new Era
- let new_validators = Staking::<T>::try_trigger_new_era(SessionIndex::one(), true).unwrap();
- assert!(new_validators.len() == v as usize);
-
- let current_era = CurrentEra::<T>::get().unwrap();
- let mut points_total = 0;
- let mut points_individual = Vec::new();
- let mut payout_calls_arg = Vec::new();
-
- for validator in new_validators.iter() {
- points_total += 10;
- points_individual.push((validator.clone(), 10));
- payout_calls_arg.push((validator.clone(), current_era));
- }
-
- // Give Era Points
- let reward = EraRewardPoints::<T::AccountId> {
- total: points_total,
- individual: points_individual.into_iter().collect(),
- };
-
- ErasRewardPoints::<T>::insert(current_era, reward);
-
- // Create reward pool
- let total_payout = asset::existential_deposit::<T>() * 1000u32.into();
- <ErasValidatorReward<T>>::insert(current_era, total_payout);
-
- let caller: T::AccountId = whitelisted_caller();
- let origin = RawOrigin::Signed(caller);
- let calls: Vec<_> = payout_calls_arg
- .iter()
- .map(|arg| {
- Call::<T>::payout_stakers_by_page {
- validator_stash: arg.0.clone(),
- era: arg.1,
- page: 0,
- }
- .encode()
- })
- .collect();
-
- #[block]
- {
- for call in calls {
- <Call<T> as Decode>::decode(&mut &*call)
- .expect("call is encoded above, encoding must be correct")
- .dispatch_bypass_filter(origin.clone().into())?;
- }
- }
-
- Ok(())
- }
-
#[benchmark(extra)]
fn do_slash(
l: Linear<1, { T::MaxUnlockingChunks::get() as u32 }>,
@@ -939,67 +983,6 @@ mod benchmarks {
Ok(())
}
- #[benchmark]
- fn get_npos_voters(
- // number of validator intention. we will iterate all of them.
- v: Linear<{ MaxValidators::<T>::get() / 2 }, { MaxValidators::<T>::get() }>,
-
- // number of nominator intention. we will iterate all of them.
- n: Linear<{ MaxNominators::<T>::get() / 2 }, { MaxNominators::<T>::get() }>,
- ) -> Result<(), BenchmarkError> {
- create_validators_with_nominators_for_era::<T>(
- v,
- n,
- MaxNominationsOf::<T>::get() as usize,
- false,
- None,
- )?;
-
- assert_eq!(Validators::<T>::count(), v);
- assert_eq!(Nominators::<T>::count(), n);
-
- let num_voters = (v + n) as usize;
-
- // default bounds are unbounded.
- let voters;
- #[block]
- {
- voters = <Staking<T>>::get_npos_voters(DataProviderBounds::default());
- }
-
- assert_eq!(voters.len(), num_voters);
-
- Ok(())
- }
-
- #[benchmark]
- fn get_npos_targets(
- // number of validator intention.
- v: Linear<{ MaxValidators::<T>::get() / 2 }, { MaxValidators::<T>::get() }>,
- ) -> Result<(), BenchmarkError> {
- // number of nominator intention.
- let n = MaxNominators::<T>::get();
- create_validators_with_nominators_for_era::<T>(
- v,
- n,
- MaxNominationsOf::<T>::get() as usize,
- false,
- None,
- )?;
-
- let targets;
-
- #[block]
- {
- // default bounds are unbounded.
- targets = <Staking<T>>::get_npos_targets(DataProviderBounds::default());
- }
-
- assert_eq!(targets.len() as u32, v);
-
- Ok(())
- }
-
#[benchmark]
fn set_staking_configs_all_set() {
#[extrinsic_call]
@@ -1199,19 +1182,19 @@ mod tests {
ExtBuilder::default().build_and_execute(|| {
let n = 10;
+ let current_era = CurrentEra::<Test>::get().unwrap();
let (validator_stash, nominators) = create_validator_with_nominators::<Test>(
n,
<<Test as Config>::MaxExposurePageSize as Get<_>>::get(),
false,
false,
RewardDestination::Staked,
+ current_era,
)
.unwrap();
assert_eq!(nominators.len() as u32, n);
- let current_era = CurrentEra::<Test>::get().unwrap();
-
let original_stakeable_balance = asset::stakeable_balance::<Test>(&validator_stash);
assert_ok!(Staking::payout_stakers_by_page(
RuntimeOrigin::signed(1337),
@@ -1237,6 +1220,7 @@ mod tests {
false,
false,
RewardDestination::Staked,
+ CurrentEra::<Test>::get().unwrap(),
)
.unwrap();
diff --git a/substrate/frame/staking/src/lib.rs b/substrate/frame/staking/src/lib.rs
index 42230cb27b7..f97b4ed30b8 100644
--- a/substrate/frame/staking/src/lib.rs
+++ b/substrate/frame/staking/src/lib.rs
@@ -143,6 +143,40 @@
//! The pallet implement the trait `SessionManager`. Which is the only API to query new validator
//! set and allowing these validator set to be rewarded once their era is ended.
//!
+//! ## Multi-page election support
+//!
+//! > Unless explicitly stated on the contrary, one page is the equivalent of one block. "Pages" and
+//! "blocks" are used interchangibly across the documentation.
+//!
+//! The pallet supports a multi-page election. In a multi-page election, some key actions of the
+//! staking pallet progress over multi pages/blocks. Most notably:
+//! 1. **Snapshot creation**: The voter snapshot *may be* created over multi blocks. The
+//! [`frame_election_provider_support::ElectionDataProvider`] trait supports that functionality
+//! by parameterizing the electing voters by the page index. Even though the target snapshot
+//! could be paged, this pallet implements a single-page target snapshot only.
+//! 2. **Election**: The election is multi-block, where a set of supports is fetched per page/block.
+//! This pallet keeps track of the elected stashes and their exposures as the paged election is
+//! called. The [`frame_election_provider_support::ElectionProvider`] trait supports this
+//! functionality by parameterizing the elect call with the page index.
+//!
+//! Note: [`frame_election_provider_support::ElectionDataProvider`] trait supports mulit-paged
+//! target snaphsot. However, this pallet only supports and implements a single-page snapshot.
+//! Calling `ElectionDataProvider::electable_targets` with a different index than 0 is redundant
+//! and the single page idx 0 of targets be returned.
+//!
+//! ### Prepare an election ahead of time with `on_initialize`
+//!
+//! This pallet is expected to have a set of winners ready and their exposures collected and stored
+//! at the time of a predicted election. In order to ensure that, it starts to fetch the paged
+//! results of an election from the [`frame_election_provider_support::ElectionProvider`] `N` pages
+//! ahead of the next election prediction.
+//!
+//! As the pages of winners are fetched, their exposures and era info are processed and stored so
+//! that all the data is ready at the time of the next election.
+//!
+//! Even though this pallet supports mulit-page elections, it also can be used in a single page
+//! context provided that the configs are set accordingly.
+//!
//! ## Interface
//!
//! ### Dispatchable Functions
@@ -294,6 +328,8 @@ pub mod testing_utils;
pub(crate) mod mock;
#[cfg(test)]
mod tests;
+#[cfg(test)]
+mod tests_paged_election;
pub mod asset;
pub mod election_size_tracker;
@@ -309,6 +345,7 @@ extern crate alloc;
use alloc::{collections::btree_map::BTreeMap, vec, vec::Vec};
use codec::{Decode, Encode, HasCompact, MaxEncodedLen};
+use frame_election_provider_support::ElectionProvider;
use frame_support::{
defensive, defensive_assert,
traits::{
@@ -348,9 +385,22 @@ macro_rules! log {
};
}
-/// Maximum number of winners (aka. active validators), as defined in the election provider of this
-/// pallet.
-pub type MaxWinnersOf<T> = <<T as Config>::ElectionProvider as frame_election_provider_support::ElectionProviderBase>::MaxWinners;
+/// Alias for a bounded set of exposures behind a validator, parameterized by this pallet's
+/// election provider.
+pub type BoundedExposuresOf<T> = BoundedVec<
+ (
+ <T as frame_system::Config>::AccountId,
+ Exposure<<T as frame_system::Config>::AccountId, BalanceOf<T>>,
+ ),
+ MaxWinnersPerPageOf<<T as Config>::ElectionProvider>,
+>;
+
+/// Alias for the maximum number of winners (aka. active validators), as defined in by this pallet's
+/// config.
+pub type MaxWinnersOf<T> = <T as Config>::MaxValidatorSet;
+
+/// Alias for the maximum number of winners per page, as expected by the election provider.
+pub type MaxWinnersPerPageOf<P> = <P as ElectionProvider>::MaxWinnersPerPage;
/// Maximum number of nominations per nominator.
pub type MaxNominationsOf<T> =
@@ -438,6 +488,18 @@ pub struct UnlockChunk<Balance: HasCompact + MaxEncodedLen> {
era: EraIndex,
}
+/// Status of a paged snapshot progress.
+#[derive(PartialEq, Eq, Clone, Encode, Decode, RuntimeDebug, TypeInfo, MaxEncodedLen, Default)]
+pub enum SnapshotStatus<AccountId> {
+ /// Paged snapshot is in progress, the `AccountId` was the last staker iterated in the list.
+ Ongoing(AccountId),
+ /// All the stakers in the system have been consumed since the snapshot started.
+ Consumed,
+ /// Waiting for a new snapshot to be requested.
+ #[default]
+ Waiting,
+}
+
/// The ledger of a (bonded) stash.
///
/// Note: All the reads and mutations to the [`Ledger`], [`Bonded`] and [`Payee`] storage items
@@ -1047,44 +1109,12 @@ where
pub struct EraInfo<T>(core::marker::PhantomData<T>);
impl<T: Config> EraInfo<T> {
/// Returns true if validator has one or more page of era rewards not claimed yet.
- // Also looks at legacy storage that can be cleaned up after #433.
pub fn pending_rewards(era: EraIndex, validator: &T::AccountId) -> bool {
- let page_count = if let Some(overview) = <ErasStakersOverview<T>>::get(&era, validator) {
- overview.page_count
- } else {
- if <ErasStakers<T>>::contains_key(era, validator) {
- // this means non paged exposure, and we treat them as single paged.
- 1
- } else {
- // if no exposure, then no rewards to claim.
- return false
- }
- };
-
- // check if era is marked claimed in legacy storage.
- if <Ledger<T>>::get(validator)
- .map(|l| l.legacy_claimed_rewards.contains(&era))
- .unwrap_or_default()
- {
- return false
- }
-
- ClaimedRewards::<T>::get(era, validator).len() < page_count as usize
- }
-
- /// Temporary function which looks at both (1) passed param `T::StakingLedger` for legacy
- /// non-paged rewards, and (2) `T::ClaimedRewards` for paged rewards. This function can be
- /// removed once `T::HistoryDepth` eras have passed and none of the older non-paged rewards
- /// are relevant/claimable.
- // Refer tracker issue for cleanup: https://github.com/paritytech/polkadot-sdk/issues/433
- pub(crate) fn is_rewards_claimed_with_legacy_fallback(
- era: EraIndex,
- ledger: &StakingLedger<T>,
- validator: &T::AccountId,
- page: Page,
- ) -> bool {
- ledger.legacy_claimed_rewards.binary_search(&era).is_ok() ||
- Self::is_rewards_claimed(era, validator, page)
+ <ErasStakersOverview<T>>::get(&era, validator)
+ .map(|overview| {
+ ClaimedRewards::<T>::get(era, validator).len() < overview.page_count as usize
+ })
+ .unwrap_or(false)
}
/// Check if the rewards for the given era and page index have been claimed.
@@ -1105,20 +1135,7 @@ impl<T: Config> EraInfo<T> {
validator: &T::AccountId,
page: Page,
) -> Option<PagedExposure<T::AccountId, BalanceOf<T>>> {
- let overview = <ErasStakersOverview<T>>::get(&era, validator);
-
- // return clipped exposure if page zero and paged exposure does not exist
- // exists for backward compatibility and can be removed as part of #13034
- if overview.is_none() && page == 0 {
- return Some(PagedExposure::from_clipped(<ErasStakersClipped<T>>::get(era, validator)))
- }
-
- // no exposure for this validator
- if overview.is_none() {
- return None
- }
-
- let overview = overview.expect("checked above; qed");
+ let overview = <ErasStakersOverview<T>>::get(&era, validator)?;
// validator stake is added only in page zero
let validator_stake = if page == 0 { overview.own } else { Zero::zero() };
@@ -1139,13 +1156,9 @@ impl<T: Config> EraInfo<T> {
era: EraIndex,
validator: &T::AccountId,
) -> Exposure<T::AccountId, BalanceOf<T>> {
- let overview = <ErasStakersOverview<T>>::get(&era, validator);
-
- if overview.is_none() {
- return ErasStakers::<T>::get(era, validator)
- }
-
- let overview = overview.expect("checked above; qed");
+ let Some(overview) = <ErasStakersOverview<T>>::get(&era, validator) else {
+ return Exposure::default();
+ };
let mut others = Vec::with_capacity(overview.nominator_count as usize);
for page in 0..overview.page_count {
@@ -1176,20 +1189,7 @@ impl<T: Config> EraInfo<T> {
}
/// Returns the next page that can be claimed or `None` if nothing to claim.
- pub(crate) fn get_next_claimable_page(
- era: EraIndex,
- validator: &T::AccountId,
- ledger: &StakingLedger<T>,
- ) -> Option<Page> {
- if Self::is_non_paged_exposure(era, validator) {
- return match ledger.legacy_claimed_rewards.binary_search(&era) {
- // already claimed
- Ok(_) => None,
- // Non-paged exposure is considered as a single page
- Err(_) => Some(0),
- }
- }
-
+ pub(crate) fn get_next_claimable_page(era: EraIndex, validator: &T::AccountId) -> Option<Page> {
// Find next claimable page of paged exposure.
let page_count = Self::get_page_count(era, validator);
let all_claimable_pages: Vec<Page> = (0..page_count).collect();
@@ -1198,11 +1198,6 @@ impl<T: Config> EraInfo<T> {
all_claimable_pages.into_iter().find(|p| !claimed_pages.contains(p))
}
- /// Checks if exposure is paged or not.
- fn is_non_paged_exposure(era: EraIndex, validator: &T::AccountId) -> bool {
- <ErasStakersClipped<T>>::contains_key(&era, validator)
- }
-
/// Returns validator commission for this era and page.
pub(crate) fn get_validator_commission(
era: EraIndex,
@@ -1229,39 +1224,105 @@ impl<T: Config> EraInfo<T> {
}
/// Store exposure for elected validators at start of an era.
- pub fn set_exposure(
+ ///
+ /// If the exposure does not exist yet for the tuple (era, validator), it sets it. Otherwise,
+ /// it updates the existing record by ensuring *intermediate* exposure pages are filled up with
+ /// `T::MaxExposurePageSize` number of backers per page and the remaining exposures are added
+ /// to new exposure pages.
+ pub fn upsert_exposure(
era: EraIndex,
validator: &T::AccountId,
- exposure: Exposure<T::AccountId, BalanceOf<T>>,
+ mut exposure: Exposure<T::AccountId, BalanceOf<T>>,
) {
let page_size = T::MaxExposurePageSize::get().defensive_max(1);
- let nominator_count = exposure.others.len();
- // expected page count is the number of nominators divided by the page size, rounded up.
- let expected_page_count = nominator_count
- .defensive_saturating_add((page_size as usize).defensive_saturating_sub(1))
- .saturating_div(page_size as usize);
-
- let (exposure_metadata, exposure_pages) = exposure.into_pages(page_size);
- defensive_assert!(exposure_pages.len() == expected_page_count, "unexpected page count");
+ if let Some(stored_overview) = ErasStakersOverview::<T>::get(era, &validator) {
+ let last_page_idx = stored_overview.page_count.saturating_sub(1);
+
+ let mut last_page =
+ ErasStakersPaged::<T>::get((era, validator, last_page_idx)).unwrap_or_default();
+ let last_page_empty_slots =
+ T::MaxExposurePageSize::get().saturating_sub(last_page.others.len() as u32);
+
+ // splits the exposure so that `exposures_append` will fit within the last exposure
+ // page, up to the max exposure page size. The remaining individual exposures in
+ // `exposure` will be added to new pages.
+ let exposures_append = exposure.split_others(last_page_empty_slots);
+
+ ErasStakersOverview::<T>::mutate(era, &validator, |stored| {
+ // new metadata is updated based on 3 different set of exposures: the
+ // current one, the exposure split to be "fitted" into the current last page and
+ // the exposure set that will be appended from the new page onwards.
+ let new_metadata =
+ stored.defensive_unwrap_or_default().update_with::<T::MaxExposurePageSize>(
+ [&exposures_append, &exposure]
+ .iter()
+ .fold(Default::default(), |total, expo| {
+ total.saturating_add(expo.total.saturating_sub(expo.own))
+ }),
+ [&exposures_append, &exposure]
+ .iter()
+ .fold(Default::default(), |count, expo| {
+ count.saturating_add(expo.others.len() as u32)
+ }),
+ );
+ *stored = new_metadata.into();
+ });
- <ErasStakersOverview<T>>::insert(era, &validator, &exposure_metadata);
- exposure_pages.iter().enumerate().for_each(|(page, paged_exposure)| {
- <ErasStakersPaged<T>>::insert((era, &validator, page as Page), &paged_exposure);
- });
+ // fill up last page with exposures.
+ last_page.page_total = last_page
+ .page_total
+ .saturating_add(exposures_append.total)
+ .saturating_sub(exposures_append.own);
+ last_page.others.extend(exposures_append.others);
+ ErasStakersPaged::<T>::insert((era, &validator, last_page_idx), last_page);
+
+ // now handle the remaining exposures and append the exposure pages. The metadata update
+ // has been already handled above.
+ let (_, exposure_pages) = exposure.into_pages(page_size);
+
+ exposure_pages.iter().enumerate().for_each(|(idx, paged_exposure)| {
+ let append_at =
+ (last_page_idx.saturating_add(1).saturating_add(idx as u32)) as Page;
+ <ErasStakersPaged<T>>::insert((era, &validator, append_at), &paged_exposure);
+ });
+ } else {
+ // expected page count is the number of nominators divided by the page size, rounded up.
+ let expected_page_count = exposure
+ .others
+ .len()
+ .defensive_saturating_add((page_size as usize).defensive_saturating_sub(1))
+ .saturating_div(page_size as usize);
+
+ // no exposures yet for this (era, validator) tuple, calculate paged exposure pages and
+ // metadata from a blank slate.
+ let (exposure_metadata, exposure_pages) = exposure.into_pages(page_size);
+ defensive_assert!(exposure_pages.len() == expected_page_count, "unexpected page count");
+
+ // insert metadata.
+ ErasStakersOverview::<T>::insert(era, &validator, exposure_metadata);
+
+ // insert validator's overview.
+ exposure_pages.iter().enumerate().for_each(|(idx, paged_exposure)| {
+ let append_at = idx as Page;
+ <ErasStakersPaged<T>>::insert((era, &validator, append_at), &paged_exposure);
+ });
+ };
}
- /// Store total exposure for all the elected validators in the era.
- pub(crate) fn set_total_stake(era: EraIndex, total_stake: BalanceOf<T>) {
- <ErasTotalStake<T>>::insert(era, total_stake);
+ /// Update the total exposure for all the elected validators in the era.
+ pub(crate) fn add_total_stake(era: EraIndex, stake: BalanceOf<T>) {
+ <ErasTotalStake<T>>::mutate(era, |total_stake| {
+ *total_stake += stake;
+ });
}
}
/// Configurations of the benchmarking of the pallet.
pub trait BenchmarkingConfig {
- /// The maximum number of validators to use.
+ /// The maximum number of validators to use for snapshot creation.
type MaxValidators: Get<u32>;
- /// The maximum number of nominators to use.
+ /// The maximum number of nominators to use for snapshot creation, per page.
type MaxNominators: Get<u32>;
}
diff --git a/substrate/frame/staking/src/migrations.rs b/substrate/frame/staking/src/migrations.rs
index 9dfa93c70b3..08667dd6176 100644
--- a/substrate/frame/staking/src/migrations.rs
+++ b/substrate/frame/staking/src/migrations.rs
@@ -64,8 +64,39 @@ type StorageVersion<T: Config> = StorageValue<Pallet<T>, ObsoleteReleases, Value
/// severity for re-enabling purposes.
pub mod v16 {
use super::*;
+ use frame_support::Twox64Concat;
use sp_staking::offence::OffenceSeverity;
+ #[frame_support::storage_alias]
+ pub(crate) type Invulnerables<T: Config> =
+ StorageValue<Pallet<T>, Vec<<T as frame_system::Config>::AccountId>, ValueQuery>;
+
+ #[frame_support::storage_alias]
+ pub(crate) type DisabledValidators<T: Config> =
+ StorageValue<Pallet<T>, Vec<(u32, OffenceSeverity)>, ValueQuery>;
+
+ #[frame_support::storage_alias]
+ pub(crate) type ErasStakers<T: Config> = StorageDoubleMap<
+ Pallet<T>,
+ Twox64Concat,
+ EraIndex,
+ Twox64Concat,
+ <T as frame_system::Config>::AccountId,
+ Exposure<<T as frame_system::Config>::AccountId, BalanceOf<T>>,
+ ValueQuery,
+ >;
+
+ #[frame_support::storage_alias]
+ pub(crate) type ErasStakersClipped<T: Config> = StorageDoubleMap<
+ Pallet<T>,
+ Twox64Concat,
+ EraIndex,
+ Twox64Concat,
+ <T as frame_system::Config>::AccountId,
+ Exposure<<T as frame_system::Config>::AccountId, BalanceOf<T>>,
+ ValueQuery,
+ >;
+
pub struct VersionUncheckedMigrateV15ToV16<T>(core::marker::PhantomData<T>);
impl<T: Config> UncheckedOnRuntimeUpgrade for VersionUncheckedMigrateV15ToV16<T> {
#[cfg(feature = "try-runtime")]
@@ -86,7 +117,7 @@ pub mod v16 {
.map(|v| (v, max_offence))
.collect::<Vec<_>>();
- DisabledValidators::<T>::set(migrated);
+ v16::DisabledValidators::<T>::set(migrated);
log!(info, "v16 applied successfully.");
T::DbWeight::get().reads_writes(1, 1)
diff --git a/substrate/frame/staking/src/mock.rs b/substrate/frame/staking/src/mock.rs
index 41fb3a31d52..fdf14976a7d 100644
--- a/substrate/frame/staking/src/mock.rs
+++ b/substrate/frame/staking/src/mock.rs
@@ -20,7 +20,8 @@
use crate::{self as pallet_staking, *};
use frame_election_provider_support::{
bounds::{ElectionBounds, ElectionBoundsBuilder},
- onchain, SequentialPhragmen, VoteWeight,
+ onchain, BoundedSupports, BoundedSupportsOf, ElectionProvider, PageIndex, SequentialPhragmen,
+ Support, VoteWeight,
};
use frame_support::{
assert_ok, derive_impl, ord_parameter_types, parameter_types,
@@ -30,15 +31,17 @@ use frame_support::{
weights::constants::RocksDbWeight,
};
use frame_system::{EnsureRoot, EnsureSignedBy};
+use sp_core::ConstBool;
use sp_io;
use sp_runtime::{curve::PiecewiseLinear, testing::UintAuthorityId, traits::Zero, BuildStorage};
use sp_staking::{
offence::{OffenceDetails, OnOffenceHandler},
- OnStakingUpdate,
+ OnStakingUpdate, StakingInterface,
};
-pub const INIT_TIMESTAMP: u64 = 30_000;
-pub const BLOCK_TIME: u64 = 1000;
+pub(crate) const INIT_TIMESTAMP: u64 = 30_000;
+pub(crate) const BLOCK_TIME: u64 = 1000;
+pub(crate) const SINGLE_PAGE: u32 = 0;
/// The AccountId alias in this test module.
pub(crate) type AccountId = u64;
@@ -203,9 +206,10 @@ parameter_types! {
pub static MaxExposurePageSize: u32 = 64;
pub static MaxUnlockingChunks: u32 = 32;
pub static RewardOnUnbalanceWasCalled: bool = false;
- pub static MaxWinners: u32 = 100;
+ pub static MaxValidatorSet: u32 = 100;
pub static ElectionsBounds: ElectionBounds = ElectionBoundsBuilder::default().build();
pub static AbsoluteMaxNominations: u32 = 16;
+ pub static MaxWinnersPerPage: u32 = MaxValidatorSet::get();
}
type VoterBagsListInstance = pallet_bags_list::Instance1;
@@ -218,14 +222,87 @@ impl pallet_bags_list::Config<VoterBagsListInstance> for Test {
type Score = VoteWeight;
}
+// multi-page types and controller.
+parameter_types! {
+ // default is single page EP.
+ pub static Pages: PageIndex = 1;
+ // Should be large enough to pass all tests, but not too big to cause benchmarking tests to be too slow.
+ pub static MaxBackersPerWinner: u32 = 256;
+ // If set, the `SingleOrMultipageElectionProvider` will return these exact values, per page
+ // index. If not, it will behave is per the code.
+ pub static CustomElectionSupports: Option<Vec<Result<BoundedSupportsOf<<Test as Config>::ElectionProvider>, onchain::Error>>> = None;
+}
+
+// An election provider wrapper that allows testing with single and multi page modes.
+pub struct SingleOrMultipageElectionProvider<SP: ElectionProvider>(core::marker::PhantomData<SP>);
+impl<
+ // single page EP.
+ SP: ElectionProvider<
+ AccountId = AccountId,
+ MaxWinnersPerPage = MaxWinnersPerPage,
+ MaxBackersPerWinner = MaxBackersPerWinner,
+ Error = onchain::Error,
+ >,
+ > ElectionProvider for SingleOrMultipageElectionProvider<SP>
+{
+ type AccountId = AccountId;
+ type BlockNumber = BlockNumber;
+ type MaxWinnersPerPage = MaxWinnersPerPage;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
+ type Pages = Pages;
+ type DataProvider = Staking;
+ type Error = onchain::Error;
+
+ fn elect(page: PageIndex) -> Result<BoundedSupportsOf<Self>, Self::Error> {
+ if let Some(maybe_paged_supports) = CustomElectionSupports::get() {
+ maybe_paged_supports[page as usize].clone()
+ } else {
+ if Pages::get() == 1 {
+ SP::elect(page)
+ } else {
+ // will take first `MaxWinnersPerPage` in the validator set as winners. in this mock
+ // impl, we return an arbitrarily but deterministic nominator exposure per
+ // winner/page.
+ let supports: Vec<(AccountId, Support<AccountId>)> =
+ Validators::<Test>::iter_keys()
+ .filter(|x| Staking::status(x) == Ok(StakerStatus::Validator))
+ .take(Self::MaxWinnersPerPage::get() as usize)
+ .map(|v| {
+ (
+ v,
+ Support {
+ total: (100 + page).into(),
+ voters: vec![((page + 1) as AccountId, (100 + page).into())],
+ },
+ )
+ })
+ .collect::<Vec<_>>();
+
+ Ok(to_bounded_supports(supports))
+ }
+ }
+ }
+ fn msp() -> PageIndex {
+ SP::msp()
+ }
+ fn lsp() -> PageIndex {
+ SP::lsp()
+ }
+ fn ongoing() -> bool {
+ SP::ongoing()
+ }
+}
+
pub struct OnChainSeqPhragmen;
impl onchain::Config for OnChainSeqPhragmen {
type System = Test;
type Solver = SequentialPhragmen<AccountId, Perbill>;
type DataProvider = Staking;
type WeightInfo = ();
- type MaxWinners = MaxWinners;
type Bounds = ElectionsBounds;
+ type Sort = ConstBool<true>;
+ type MaxBackersPerWinner = MaxBackersPerWinner;
+ type MaxWinnersPerPage = MaxWinnersPerPage;
}
pub struct MockReward {}
@@ -275,9 +352,10 @@ impl crate::pallet::pallet::Config for Test {
type EraPayout = ConvertCurve<RewardCurve>;
type NextNewSession = Session;
type MaxExposurePageSize = MaxExposurePageSize;
- type ElectionProvider = onchain::OnChainExecution<OnChainSeqPhragmen>;
- type GenesisElectionProvider = Self::ElectionProvider;
- // NOTE: consider a macro and use `UseNominatorsAndValidatorsMap<Self>` as well.
+ type MaxValidatorSet = MaxValidatorSet;
+ type ElectionProvider =
+ SingleOrMultipageElectionProvider<onchain::OnChainExecution<OnChainSeqPhragmen>>;
+ type GenesisElectionProvider = onchain::OnChainExecution<OnChainSeqPhragmen>;
type VoterList = VoterBagsList;
type TargetList = UseValidatorsMap<Self>;
type NominationsQuota = WeightedNominationsQuota<16>;
@@ -287,6 +365,8 @@ impl crate::pallet::pallet::Config for Test {
type EventListeners = EventListenerMock;
type DisablingStrategy =
pallet_staking::UpToLimitWithReEnablingDisablingStrategy<DISABLING_LIMIT_FACTOR>;
+ type MaxInvulnerables = ConstU32<20>;
+ type MaxDisabledValidators = ConstU32<100>;
}
pub struct WeightedNominationsQuota<const MAX: u32>;
@@ -320,7 +400,7 @@ pub struct ExtBuilder {
nominate: bool,
validator_count: u32,
minimum_validator_count: u32,
- invulnerables: Vec<AccountId>,
+ invulnerables: BoundedVec<AccountId, <Test as Config>::MaxInvulnerables>,
has_stakers: bool,
initialize_first_session: bool,
pub min_nominator_bond: Balance,
@@ -338,7 +418,7 @@ impl Default for ExtBuilder {
validator_count: 2,
minimum_validator_count: 0,
balance_factor: 1,
- invulnerables: vec![],
+ invulnerables: BoundedVec::new(),
has_stakers: true,
initialize_first_session: true,
min_nominator_bond: ExistentialDeposit::get(),
@@ -372,7 +452,8 @@ impl ExtBuilder {
self
}
pub fn invulnerables(mut self, invulnerables: Vec<AccountId>) -> Self {
- self.invulnerables = invulnerables;
+ self.invulnerables = BoundedVec::try_from(invulnerables)
+ .expect("Too many invulnerable validators: upper limit is MaxInvulnerables");
self
}
pub fn session_per_era(self, length: SessionIndex) -> Self {
@@ -421,10 +502,22 @@ impl ExtBuilder {
self.stakers.push((stash, ctrl, stake, status));
self
}
+ pub fn exposures_page_size(self, max: u32) -> Self {
+ MaxExposurePageSize::set(max);
+ self
+ }
pub fn balance_factor(mut self, factor: Balance) -> Self {
self.balance_factor = factor;
self
}
+ pub fn multi_page_election_provider(self, pages: PageIndex) -> Self {
+ Pages::set(pages);
+ self
+ }
+ pub fn max_winners_per_page(self, max: u32) -> Self {
+ MaxWinnersPerPage::set(max);
+ self
+ }
pub fn try_state(self, enable: bool) -> Self {
SkipTryStateCheck::set(!enable);
self
@@ -468,6 +561,7 @@ impl ExtBuilder {
(71, self.balance_factor * 2000),
(80, self.balance_factor),
(81, self.balance_factor * 2000),
+ (91, self.balance_factor * 2000),
// This allows us to have a total_payout different from 0.
(999, 1_000_000_000_000),
],
@@ -713,6 +807,13 @@ pub(crate) fn validator_controllers() -> Vec<AccountId> {
.collect()
}
+pub(crate) fn era_exposures(era: u32) -> Vec<(AccountId, Exposure<AccountId, Balance>)> {
+ validator_controllers()
+ .into_iter()
+ .map(|v| (v, Staking::eras_stakers(era, &v)))
+ .collect::<Vec<_>>()
+}
+
pub(crate) fn on_offence_in_era(
offenders: &[OffenceDetails<
AccountId,
@@ -927,3 +1028,13 @@ pub(crate) fn staking_events_since_last_call() -> Vec<crate::Event<Test>> {
pub(crate) fn balances(who: &AccountId) -> (Balance, Balance) {
(asset::stakeable_balance::<Test>(who), Balances::reserved_balance(who))
}
+
+pub(crate) fn to_bounded_supports(
+ supports: Vec<(AccountId, Support<AccountId>)>,
+) -> BoundedSupports<
+ AccountId,
+ <<Test as Config>::ElectionProvider as ElectionProvider>::MaxWinnersPerPage,
+ <<Test as Config>::ElectionProvider as ElectionProvider>::MaxBackersPerWinner,
+> {
+ supports.try_into().unwrap()
+}
diff --git a/substrate/frame/staking/src/pallet/impls.rs b/substrate/frame/staking/src/pallet/impls.rs
index 8c3ff23315a..8ca018c7d8b 100644
--- a/substrate/frame/staking/src/pallet/impls.rs
+++ b/substrate/frame/staking/src/pallet/impls.rs
@@ -18,9 +18,8 @@
//! Implementations for the Staking FRAME Pallet.
use frame_election_provider_support::{
- bounds::{CountBound, SizeBound},
- data_provider, BoundedSupportsOf, DataProviderBounds, ElectionDataProvider, ElectionProvider,
- ScoreProvider, SortedListProvider, VoteWeight, VoterOf,
+ bounds::CountBound, data_provider, BoundedSupportsOf, DataProviderBounds, ElectionDataProvider,
+ ElectionProvider, PageIndex, ScoreProvider, SortedListProvider, VoteWeight, VoterOf,
};
use frame_support::{
defensive,
@@ -50,10 +49,10 @@ use sp_staking::{
use crate::{
asset, election_size_tracker::StaticTracker, log, slashing, weights::WeightInfo, ActiveEraInfo,
- BalanceOf, EraInfo, EraPayout, Exposure, ExposureOf, Forcing, IndividualExposure,
- LedgerIntegrityState, MaxNominationsOf, MaxWinnersOf, Nominations, NominationsQuota,
- PositiveImbalanceOf, RewardDestination, SessionInterface, StakingLedger, ValidatorPrefs,
- STAKING_ID,
+ BalanceOf, BoundedExposuresOf, EraInfo, EraPayout, Exposure, ExposureOf, Forcing,
+ IndividualExposure, LedgerIntegrityState, MaxNominationsOf, MaxWinnersOf, MaxWinnersPerPageOf,
+ Nominations, NominationsQuota, PositiveImbalanceOf, RewardDestination, SessionInterface,
+ SnapshotStatus, StakingLedger, ValidatorPrefs, STAKING_ID,
};
use alloc::{boxed::Box, vec, vec::Vec};
@@ -73,6 +72,20 @@ use sp_runtime::TryRuntimeError;
const NPOS_MAX_ITERATIONS_COEFFICIENT: u32 = 2;
impl<T: Config> Pallet<T> {
+ /// Fetches the number of pages configured by the election provider.
+ pub fn election_pages() -> u32 {
+ <<T as Config>::ElectionProvider as ElectionProvider>::Pages::get()
+ }
+
+ /// Clears up all election preparation metadata in storage.
+ pub(crate) fn clear_election_metadata() {
+ VoterSnapshotStatus::<T>::kill();
+ NextElectionPage::<T>::kill();
+ ElectableStashes::<T>::kill();
+ // TODO: crude weights, improve.
+ Self::register_weight(T::DbWeight::get().writes(3));
+ }
+
/// Fetches the ledger associated with a controller or stash account, if any.
pub fn ledger(account: StakingAccount<T::AccountId>) -> Result<StakingLedger<T>, Error<T>> {
StakingLedger::<T>::get(account)
@@ -231,13 +244,8 @@ impl<T: Config> Pallet<T> {
validator_stash: T::AccountId,
era: EraIndex,
) -> DispatchResultWithPostInfo {
- let controller = Self::bonded(&validator_stash).ok_or_else(|| {
- Error::<T>::NotStash.with_weight(T::WeightInfo::payout_stakers_alive_staked(0))
- })?;
-
- let ledger = Self::ledger(StakingAccount::Controller(controller))?;
- let page = EraInfo::<T>::get_next_claimable_page(era, &validator_stash, &ledger)
- .ok_or_else(|| {
+ let page =
+ EraInfo::<T>::get_next_claimable_page(era, &validator_stash).ok_or_else(|| {
Error::<T>::AlreadyClaimed
.with_weight(T::WeightInfo::payout_stakers_alive_staked(0))
})?;
@@ -257,6 +265,7 @@ impl<T: Config> Pallet<T> {
})?;
let history_depth = T::HistoryDepth::get();
+
ensure!(
era <= current_era && era >= current_era.saturating_sub(history_depth),
Error::<T>::InvalidEraToReward
@@ -292,13 +301,13 @@ impl<T: Config> Pallet<T> {
let stash = ledger.stash.clone();
- if EraInfo::<T>::is_rewards_claimed_with_legacy_fallback(era, &ledger, &stash, page) {
+ if EraInfo::<T>::is_rewards_claimed(era, &stash, page) {
return Err(Error::<T>::AlreadyClaimed
.with_weight(T::WeightInfo::payout_stakers_alive_staked(0)))
- } else {
- EraInfo::<T>::set_rewards_as_claimed(era, &stash, page);
}
+ EraInfo::<T>::set_rewards_as_claimed(era, &stash, page);
+
let exposure = EraInfo::<T>::get_paged_exposure(era, &stash, page).ok_or_else(|| {
Error::<T>::InvalidEraToReward
.with_weight(T::WeightInfo::payout_stakers_alive_staked(0))
@@ -348,7 +357,7 @@ impl<T: Config> Pallet<T> {
era_index: era,
validator_stash: stash.clone(),
page,
- next: EraInfo::<T>::get_next_claimable_page(era, &stash, &ledger),
+ next: EraInfo::<T>::get_next_claimable_page(era, &stash),
});
let mut total_imbalance = PositiveImbalanceOf::<T>::zero();
@@ -444,6 +453,10 @@ impl<T: Config> Pallet<T> {
}
/// Plan a new session potentially trigger a new era.
+ ///
+ /// Subsequent function calls in the happy path are as follows:
+ /// 1. `try_plan_new_era`
+ /// 2. `plan_new_era`
fn new_session(
session_index: SessionIndex,
is_genesis: bool,
@@ -461,9 +474,9 @@ impl<T: Config> Pallet<T> {
match ForceEra::<T>::get() {
// Will be set to `NotForcing` again if a new era has been triggered.
Forcing::ForceNew => (),
- // Short circuit to `try_trigger_new_era`.
+ // Short circuit to `try_plan_new_era`.
Forcing::ForceAlways => (),
- // Only go to `try_trigger_new_era` if deadline reached.
+ // Only go to `try_plan_new_era` if deadline reached.
Forcing::NotForcing if era_length >= T::SessionsPerEra::get() => (),
_ => {
// Either `Forcing::ForceNone`,
@@ -473,7 +486,7 @@ impl<T: Config> Pallet<T> {
}
// New era.
- let maybe_new_era_validators = Self::try_trigger_new_era(session_index, is_genesis);
+ let maybe_new_era_validators = Self::try_plan_new_era(session_index, is_genesis);
if maybe_new_era_validators.is_some() &&
matches!(ForceEra::<T>::get(), Forcing::ForceNew)
{
@@ -484,7 +497,7 @@ impl<T: Config> Pallet<T> {
} else {
// Set initial era.
log!(debug, "Starting the first era.");
- Self::try_trigger_new_era(session_index, is_genesis)
+ Self::try_plan_new_era(session_index, is_genesis)
}
}
@@ -533,6 +546,7 @@ impl<T: Config> Pallet<T> {
fn start_era(start_session: SessionIndex) {
let active_era = ActiveEra::<T>::mutate(|active_era| {
let new_index = active_era.as_ref().map(|info| info.index + 1).unwrap_or(0);
+ log!(debug, "starting active era {:?}", new_index);
*active_era = Some(ActiveEraInfo {
index: new_index,
// Set new active era start in next `on_finalize`. To guarantee usage of `Time`
@@ -604,69 +618,78 @@ impl<T: Config> Pallet<T> {
}
}
- /// Plan a new era.
+ /// Helper function provided to other pallets that want to rely on pallet-stkaing for
+ /// testing/benchmarking, and wish to populate `ElectableStashes`, such that a next call (post
+ /// genesis) to `try_plan_new_era` works.
///
- /// * Bump the current era storage (which holds the latest planned era).
- /// * Store start session index for the new planned era.
- /// * Clean old era information.
- /// * Store staking information for the new planned era
- ///
- /// Returns the new validator set.
- pub fn trigger_new_era(
- start_session_index: SessionIndex,
- exposures: BoundedVec<
- (T::AccountId, Exposure<T::AccountId, BalanceOf<T>>),
- MaxWinnersOf<T>,
- >,
- ) -> BoundedVec<T::AccountId, MaxWinnersOf<T>> {
- // Increment or set current era.
- let new_planned_era = CurrentEra::<T>::mutate(|s| {
- *s = Some(s.map(|s| s + 1).unwrap_or(0));
- s.unwrap()
- });
- ErasStartSessionIndex::<T>::insert(&new_planned_era, &start_session_index);
-
- // Clean old era information.
- if let Some(old_era) = new_planned_era.checked_sub(T::HistoryDepth::get() + 1) {
- Self::clear_era_information(old_era);
- }
-
- // Set staking information for the new era.
- Self::store_stakers_info(exposures, new_planned_era)
+ /// This uses `GenesisElectionProvider` which should always be set to something reasonable and
+ /// instant.
+ pub fn populate_staking_election_testing_benchmarking_only() -> Result<(), &'static str> {
+ let supports = <T::GenesisElectionProvider>::elect(Zero::zero()).map_err(|e| {
+ log!(warn, "genesis election provider failed due to {:?}", e);
+ "election failed"
+ })?;
+ Self::do_elect_paged_inner(supports).map_err(|_| "do_elect_paged_inner")?;
+ Ok(())
}
/// Potentially plan a new era.
///
- /// Get election result from `T::ElectionProvider`.
+ /// The election results are either fetched directly from an election provider if it is the
+ /// "genesis" election or from a cached set of winners.
+ ///
/// In case election result has more than [`MinimumValidatorCount`] validator trigger a new era.
///
/// In case a new era is planned, the new validator set is returned.
- pub(crate) fn try_trigger_new_era(
+ pub(crate) fn try_plan_new_era(
start_session_index: SessionIndex,
is_genesis: bool,
) -> Option<BoundedVec<T::AccountId, MaxWinnersOf<T>>> {
- let election_result: BoundedVec<_, MaxWinnersOf<T>> = if is_genesis {
- let result = <T::GenesisElectionProvider>::elect().map_err(|e| {
+ // TODO: weights of this call path are rather crude, improve.
+ let validators: BoundedVec<T::AccountId, MaxWinnersOf<T>> = if is_genesis {
+ // genesis election only uses one election result page.
+ let result = <T::GenesisElectionProvider>::elect(Zero::zero()).map_err(|e| {
log!(warn, "genesis election provider failed due to {:?}", e);
Self::deposit_event(Event::StakingElectionFailed);
});
- result
- .ok()?
+ let exposures = Self::collect_exposures(result.ok().unwrap_or_default());
+
+ let validators = exposures
+ .iter()
+ .map(|(validator, _)| validator)
+ .cloned()
+ .try_collect()
+ .unwrap_or_default();
+
+ // set stakers info for genesis era (0).
+ let _ = Self::store_stakers_info(exposures, Zero::zero());
+
+ // consume full block weight to be safe.
+ Self::register_weight(sp_runtime::traits::Bounded::max_value());
+ validators
+ } else {
+ // note: exposures have already been processed and stored for each of the election
+ // solution page at the time of `elect_paged(page_index)`.
+ Self::register_weight(T::DbWeight::get().reads(1));
+ ElectableStashes::<T>::take()
.into_inner()
+ .into_iter()
+ .collect::<Vec<_>>()
.try_into()
- // both bounds checked in integrity test to be equal
- .defensive_unwrap_or_default()
- } else {
- let result = <T::ElectionProvider>::elect().map_err(|e| {
- log!(warn, "election provider failed due to {:?}", e);
- Self::deposit_event(Event::StakingElectionFailed);
- });
- result.ok()?
+ .expect("same bounds, will fit; qed.")
};
- let exposures = Self::collect_exposures(election_result);
- if (exposures.len() as u32) < MinimumValidatorCount::<T>::get().max(1) {
+ log!(
+ info,
+ "(is_genesis?: {:?}) electable validators count for session starting {:?}, era {:?}: {:?}",
+ is_genesis,
+ start_session_index,
+ CurrentEra::<T>::get().unwrap_or_default() + 1,
+ validators.len()
+ );
+
+ if (validators.len() as u32) < MinimumValidatorCount::<T>::get().max(1) {
// Session will panic if we ever return an empty validator set, thus max(1) ^^.
match CurrentEra::<T>::get() {
Some(current_era) if current_era > 0 => log!(
@@ -674,7 +697,7 @@ impl<T: Config> Pallet<T> {
"chain does not have enough staking candidates to operate for era {:?} ({} \
elected, minimum is {})",
CurrentEra::<T>::get().unwrap_or(0),
- exposures.len(),
+ validators.len(),
MinimumValidatorCount::<T>::get(),
),
None => {
@@ -685,69 +708,186 @@ impl<T: Config> Pallet<T> {
CurrentEra::<T>::put(0);
ErasStartSessionIndex::<T>::insert(&0, &start_session_index);
},
- _ => (),
+ _ => {},
}
-
+ // election failed, clear election prep metadata.
Self::deposit_event(Event::StakingElectionFailed);
- return None
+ Self::clear_election_metadata();
+
+ None
+ } else {
+ Self::deposit_event(Event::StakersElected);
+ Self::clear_election_metadata();
+ Self::plan_new_era(start_session_index);
+
+ Some(validators)
}
+ }
- Self::deposit_event(Event::StakersElected);
- Some(Self::trigger_new_era(start_session_index, exposures))
+ /// Plan a new era.
+ ///
+ /// * Bump the current era storage (which holds the latest planned era).
+ /// * Store start session index for the new planned era.
+ /// * Clean old era information.
+ ///
+ /// The new validator set for this era is stored under `ElectableStashes`.
+ pub fn plan_new_era(start_session_index: SessionIndex) {
+ // Increment or set current era.
+ let new_planned_era = CurrentEra::<T>::mutate(|s| {
+ *s = Some(s.map(|s| s + 1).unwrap_or(0));
+ s.unwrap()
+ });
+ ErasStartSessionIndex::<T>::insert(&new_planned_era, &start_session_index);
+
+ // Clean old era information.
+ if let Some(old_era) = new_planned_era.checked_sub(T::HistoryDepth::get() + 1) {
+ log!(trace, "Removing era information for {:?}", old_era);
+ Self::clear_era_information(old_era);
+ }
}
- /// Process the output of the election.
+ /// Paginated elect.
///
- /// Store staking information for the new planned era
+ /// Fetches the election page with index `page` from the election provider.
+ ///
+ /// The results from the elect call should be stored in the `ElectableStashes` storage. In
+ /// addition, it stores stakers' information for next planned era based on the paged solution
+ /// data returned.
+ ///
+ /// If any new election winner does not fit in the electable stashes storage, it truncates the
+ /// result of the election. We ensure that only the winners that are part of the electable
+ /// stashes have exposures collected for the next era.
+ ///
+ /// If `T::ElectionProvider::elect(_)`, we don't raise an error just yet and continue until
+ /// `elect(0)`. IFF `elect(0)` is called, yet we have not collected enough validators (as per
+ /// `MinimumValidatorCount` storage), an error is raised in the next era rotation.
+ pub(crate) fn do_elect_paged(page: PageIndex) -> Weight {
+ match T::ElectionProvider::elect(page) {
+ Ok(supports) => {
+ let supports_len = supports.len() as u32;
+ let inner_processing_results = Self::do_elect_paged_inner(supports);
+ if let Err(not_included) = inner_processing_results {
+ defensive!(
+ "electable stashes exceeded limit, unexpected but election proceeds.\
+ {} stashes from election result discarded",
+ not_included
+ );
+ };
+
+ Self::deposit_event(Event::PagedElectionProceeded {
+ page,
+ result: inner_processing_results.map(|x| x as u32).map_err(|x| x as u32),
+ });
+ T::WeightInfo::do_elect_paged_inner(supports_len)
+ },
+ Err(e) => {
+ log!(warn, "election provider page failed due to {:?} (page: {})", e, page);
+ Self::deposit_event(Event::PagedElectionProceeded { page, result: Err(0) });
+ // no-op -- no need to raise an error for now.
+ Default::default()
+ },
+ }
+ }
+
+ /// Inner implementation of [`Self::do_elect_paged`].
+ ///
+ /// Returns an error if adding election winners to the electable stashes storage fails due to
+ /// exceeded bounds. In case of error, it returns the index of the first stash that failed to be
+ /// included.
+ pub(crate) fn do_elect_paged_inner(
+ mut supports: BoundedSupportsOf<T::ElectionProvider>,
+ ) -> Result<usize, usize> {
+ // preparing the next era. Note: we expect `do_elect_paged` to be called *only* during a
+ // non-genesis era, thus current era should be set by now.
+ let planning_era = CurrentEra::<T>::get().defensive_unwrap_or_default().saturating_add(1);
+
+ match Self::add_electables(supports.iter().map(|(s, _)| s.clone())) {
+ Ok(added) => {
+ let exposures = Self::collect_exposures(supports);
+ let _ = Self::store_stakers_info(exposures, planning_era);
+ Ok(added)
+ },
+ Err(not_included_idx) => {
+ let not_included = supports.len().saturating_sub(not_included_idx);
+
+ log!(
+ warn,
+ "not all winners fit within the electable stashes, excluding {:?} accounts from solution.",
+ not_included,
+ );
+
+ // filter out supports of stashes that do not fit within the electable stashes
+ // storage bounds to prevent collecting their exposures.
+ supports.truncate(not_included_idx);
+ let exposures = Self::collect_exposures(supports);
+ let _ = Self::store_stakers_info(exposures, planning_era);
+
+ Err(not_included)
+ },
+ }
+ }
+
+ /// Process the output of a paged election.
+ ///
+ /// Store staking information for the new planned era of a single election page.
pub fn store_stakers_info(
- exposures: BoundedVec<
- (T::AccountId, Exposure<T::AccountId, BalanceOf<T>>),
- MaxWinnersOf<T>,
- >,
+ exposures: BoundedExposuresOf<T>,
new_planned_era: EraIndex,
- ) -> BoundedVec<T::AccountId, MaxWinnersOf<T>> {
- // Populate elected stash, stakers, exposures, and the snapshot of validator prefs.
- let mut total_stake: BalanceOf<T> = Zero::zero();
- let mut elected_stashes = Vec::with_capacity(exposures.len());
+ ) -> BoundedVec<T::AccountId, MaxWinnersPerPageOf<T::ElectionProvider>> {
+ // populate elected stash, stakers, exposures, and the snapshot of validator prefs.
+ let mut total_stake_page: BalanceOf<T> = Zero::zero();
+ let mut elected_stashes_page = Vec::with_capacity(exposures.len());
+ let mut total_backers = 0u32;
exposures.into_iter().for_each(|(stash, exposure)| {
- // build elected stash
- elected_stashes.push(stash.clone());
- // accumulate total stake
- total_stake = total_stake.saturating_add(exposure.total);
- // store staker exposure for this era
- EraInfo::<T>::set_exposure(new_planned_era, &stash, exposure);
+ log!(
+ trace,
+ "stored exposure for stash {:?} and {:?} backers",
+ stash,
+ exposure.others.len()
+ );
+ // build elected stash.
+ elected_stashes_page.push(stash.clone());
+ // accumulate total stake.
+ total_stake_page = total_stake_page.saturating_add(exposure.total);
+ // set or update staker exposure for this era.
+ total_backers += exposure.others.len() as u32;
+ EraInfo::<T>::upsert_exposure(new_planned_era, &stash, exposure);
});
- let elected_stashes: BoundedVec<_, MaxWinnersOf<T>> = elected_stashes
- .try_into()
- .expect("elected_stashes.len() always equal to exposures.len(); qed");
+ let elected_stashes: BoundedVec<_, MaxWinnersPerPageOf<T::ElectionProvider>> =
+ elected_stashes_page
+ .try_into()
+ .expect("both types are bounded by MaxWinnersPerPageOf; qed");
- EraInfo::<T>::set_total_stake(new_planned_era, total_stake);
+ // adds to total stake in this era.
+ EraInfo::<T>::add_total_stake(new_planned_era, total_stake_page);
- // Collect the pref of all winners.
+ // collect or update the pref of all winners.
for stash in &elected_stashes {
let pref = Validators::<T>::get(stash);
<ErasValidatorPrefs<T>>::insert(&new_planned_era, stash, pref);
}
- if new_planned_era > 0 {
- log!(
- info,
- "new validator set of size {:?} has been processed for era {:?}",
- elected_stashes.len(),
- new_planned_era,
- );
- }
+ log!(
+ info,
+ "stored a page of stakers with {:?} validators and {:?} total backers for era {:?}",
+ elected_stashes.len(),
+ total_backers,
+ new_planned_era,
+ );
elected_stashes
}
/// Consume a set of [`BoundedSupports`] from [`sp_npos_elections`] and collect them into a
/// [`Exposure`].
- fn collect_exposures(
+ ///
+ /// Returns vec of all the exposures of a validator in `paged_supports`, bounded by the number
+ /// of max winners per page returned by the election provider.
+ pub(crate) fn collect_exposures(
supports: BoundedSupportsOf<T::ElectionProvider>,
- ) -> BoundedVec<(T::AccountId, Exposure<T::AccountId, BalanceOf<T>>), MaxWinnersOf<T>> {
+ ) -> BoundedExposuresOf<T> {
let total_issuance = asset::total_issuance::<T>();
let to_currency = |e: frame_election_provider_support::ExtendedBalance| {
T::CurrencyToVote::to_currency(e, total_issuance)
@@ -766,6 +906,7 @@ impl<T: Config> Pallet<T> {
.map(|(nominator, weight)| (nominator, to_currency(weight)))
.for_each(|(nominator, stake)| {
if nominator == validator {
+ defensive_assert!(own == Zero::zero(), "own stake should be unique");
own = own.saturating_add(stake);
} else {
others.push(IndividualExposure { who: nominator, value: stake });
@@ -780,6 +921,28 @@ impl<T: Config> Pallet<T> {
.expect("we only map through support vector which cannot change the size; qed")
}
+ /// Adds a new set of stashes to the electable stashes.
+ ///
+ /// Returns:
+ ///
+ /// `Ok(newly_added)` if all stashes were added successfully.
+ /// `Err(first_un_included)` if some stashes cannot be added due to bounds.
+ pub(crate) fn add_electables(
+ new_stashes: impl Iterator<Item = T::AccountId>,
+ ) -> Result<usize, usize> {
+ ElectableStashes::<T>::mutate(|electable| {
+ let pre_size = electable.len();
+
+ for (idx, stash) in new_stashes.enumerate() {
+ if electable.try_insert(stash).is_err() {
+ return Err(idx);
+ }
+ }
+
+ Ok(electable.len() - pre_size)
+ })
+ }
+
/// Remove all associated data of a stash account from the staking system.
///
/// Assumes storage is upgraded before calling.
@@ -804,11 +967,7 @@ impl<T: Config> Pallet<T> {
pub(crate) fn clear_era_information(era_index: EraIndex) {
// FIXME: We can possibly set a reasonable limit since we do this only once per era and
// clean up state across multiple blocks.
- let mut cursor = <ErasStakers<T>>::clear_prefix(era_index, u32::MAX, None);
- debug_assert!(cursor.maybe_cursor.is_none());
- cursor = <ErasStakersClipped<T>>::clear_prefix(era_index, u32::MAX, None);
- debug_assert!(cursor.maybe_cursor.is_none());
- cursor = <ErasValidatorPrefs<T>>::clear_prefix(era_index, u32::MAX, None);
+ let mut cursor = <ErasValidatorPrefs<T>>::clear_prefix(era_index, u32::MAX, None);
debug_assert!(cursor.maybe_cursor.is_none());
cursor = <ClaimedRewards<T>>::clear_prefix(era_index, u32::MAX, None);
debug_assert!(cursor.maybe_cursor.is_none());
@@ -873,7 +1032,7 @@ impl<T: Config> Pallet<T> {
stash: T::AccountId,
exposure: Exposure<T::AccountId, BalanceOf<T>>,
) {
- EraInfo::<T>::set_exposure(current_era, &stash, exposure);
+ EraInfo::<T>::upsert_exposure(current_era, &stash, exposure);
}
#[cfg(feature = "runtime-benchmarks")]
@@ -881,23 +1040,29 @@ impl<T: Config> Pallet<T> {
SlashRewardFraction::<T>::put(fraction);
}
- /// Get all of the voters that are eligible for the npos election.
+ /// Get all the voters associated with `page` that are eligible for the npos election.
///
- /// `maybe_max_len` can imposes a cap on the number of voters returned;
+ /// `maybe_max_len` can impose a cap on the number of voters returned per page.
///
/// Sets `MinimumActiveStake` to the minimum active nominator stake in the returned set of
/// nominators.
///
+ /// Note: in the context of the multi-page snapshot, we expect the *order* of `VoterList` and
+ /// `TargetList` not to change while the pages are being processed.
+ ///
/// This function is self-weighing as [`DispatchClass::Mandatory`].
- pub fn get_npos_voters(bounds: DataProviderBounds) -> Vec<VoterOf<Self>> {
+ pub(crate) fn get_npos_voters(
+ bounds: DataProviderBounds,
+ status: &SnapshotStatus<T::AccountId>,
+ ) -> Vec<VoterOf<Self>> {
let mut voters_size_tracker: StaticTracker<Self> = StaticTracker::default();
- let final_predicted_len = {
+ let page_len_prediction = {
let all_voter_count = T::VoterList::count();
bounds.count.unwrap_or(all_voter_count.into()).min(all_voter_count.into()).0
};
- let mut all_voters = Vec::<_>::with_capacity(final_predicted_len as usize);
+ let mut all_voters = Vec::<_>::with_capacity(page_len_prediction as usize);
// cache a few things.
let weight_of = Self::weight_of_fn();
@@ -907,9 +1072,18 @@ impl<T: Config> Pallet<T> {
let mut nominators_taken = 0u32;
let mut min_active_stake = u64::MAX;
- let mut sorted_voters = T::VoterList::iter();
- while all_voters.len() < final_predicted_len as usize &&
- voters_seen < (NPOS_MAX_ITERATIONS_COEFFICIENT * final_predicted_len as u32)
+ let mut sorted_voters = match status {
+ // start the snapshot processing from the beginning.
+ SnapshotStatus::Waiting => T::VoterList::iter(),
+ // snapshot continues, start from the last iterated voter in the list.
+ SnapshotStatus::Ongoing(account_id) => T::VoterList::iter_from(&account_id)
+ .defensive_unwrap_or(Box::new(vec![].into_iter())),
+ // all voters have been consumed already, return an empty iterator.
+ SnapshotStatus::Consumed => Box::new(vec![].into_iter()),
+ };
+
+ while all_voters.len() < page_len_prediction as usize &&
+ voters_seen < (NPOS_MAX_ITERATIONS_COEFFICIENT * page_len_prediction as u32)
{
let voter = match sorted_voters.next() {
Some(voter) => {
@@ -944,6 +1118,7 @@ impl<T: Config> Pallet<T> {
all_voters.push(voter);
nominators_taken.saturating_inc();
} else {
+ defensive!("non-nominator fetched from voter list: {:?}", voter);
// technically should never happen, but not much we can do about it.
}
min_active_stake =
@@ -974,15 +1149,17 @@ impl<T: Config> Pallet<T> {
// `T::NominationsQuota::get_quota`. The latter can rarely happen, and is not
// really an emergency or bug if it does.
defensive!(
- "DEFENSIVE: invalid item in `VoterList`: {:?}, this nominator probably has too many nominations now",
+ "invalid item in `VoterList`: {:?}, this nominator probably has too many nominations now",
voter,
);
}
}
// all_voters should have not re-allocated.
- debug_assert!(all_voters.capacity() == final_predicted_len as usize);
+ debug_assert!(all_voters.capacity() == page_len_prediction as usize);
+ // TODO remove this and further instances of this, it will now be recorded in the EPM-MB
+ // pallet.
Self::register_weight(T::WeightInfo::get_npos_voters(validators_taken, nominators_taken));
let min_active_stake: T::CurrencyBalance =
@@ -990,18 +1167,12 @@ impl<T: Config> Pallet<T> {
MinimumActiveStake::<T>::put(min_active_stake);
- log!(
- info,
- "generated {} npos voters, {} from validators and {} nominators",
- all_voters.len(),
- validators_taken,
- nominators_taken
- );
-
all_voters
}
- /// Get the targets for an upcoming npos election.
+ /// Get all the targets associated are eligible for the npos election.
+ ///
+ /// The target snapshot is *always* single paged.
///
/// This function is self-weighing as [`DispatchClass::Mandatory`].
pub fn get_npos_targets(bounds: DataProviderBounds) -> Vec<T::AccountId> {
@@ -1029,6 +1200,7 @@ impl<T: Config> Pallet<T> {
if targets_size_tracker.try_register_target(target.clone(), &bounds).is_err() {
// no more space left for the election snapshot, stop iterating.
+ log!(warn, "npos targets size exceeded, stopping iteration.");
Self::deposit_event(Event::<T>::SnapshotTargetsSizeExceeded {
size: targets_size_tracker.size as u32,
});
@@ -1041,7 +1213,7 @@ impl<T: Config> Pallet<T> {
}
Self::register_weight(T::WeightInfo::get_npos_targets(all_targets.len() as u32));
- log!(info, "generated {} npos targets", all_targets.len());
+ log!(info, "[bounds {:?}] generated {} npos targets", bounds, all_targets.len());
all_targets
}
@@ -1150,9 +1322,10 @@ impl<T: Config> Pallet<T> {
/// Returns full exposure of a validator for a given era.
///
- /// History note: This used to be a getter for old storage item `ErasStakers` deprecated in v14.
- /// Since this function is used in the codebase at various places, we kept it as a custom getter
- /// that takes care of getting the full exposure of the validator in a backward compatible way.
+ /// History note: This used to be a getter for old storage item `ErasStakers` deprecated in v14
+ /// and deleted in v17. Since this function is used in the codebase at various places, we kept
+ /// it as a custom getter that takes care of getting the full exposure of the validator in a
+ /// backward compatible way.
pub fn eras_stakers(
era: EraIndex,
account: &T::AccountId,
@@ -1260,6 +1433,13 @@ impl<T: Config> Pallet<T> {
}
}
+// TODO: this is a very bad design. A hack for now so we can do benchmarks. Once
+// `next_election_prediction` is reworked based on rc-client, get rid of it. For now, just know that
+// the only fn that can set this is only accessible in runtime benchmarks.
+frame_support::parameter_types! {
+ pub storage BenchmarkNextElection: Option<u32> = None;
+}
+
impl<T: Config> ElectionDataProvider for Pallet<T> {
type AccountId = T::AccountId;
type BlockNumber = BlockNumberFor<T>;
@@ -1270,36 +1450,92 @@ impl<T: Config> ElectionDataProvider for Pallet<T> {
Ok(ValidatorCount::<T>::get())
}
- fn electing_voters(bounds: DataProviderBounds) -> data_provider::Result<Vec<VoterOf<Self>>> {
- // This can never fail -- if `maybe_max_len` is `Some(_)` we handle it.
- let voters = Self::get_npos_voters(bounds);
+ fn electing_voters(
+ bounds: DataProviderBounds,
+ page: PageIndex,
+ ) -> data_provider::Result<Vec<VoterOf<Self>>> {
+ let mut status = VoterSnapshotStatus::<T>::get();
+ let voters = Self::get_npos_voters(bounds, &status);
+
+ // update the voter snapshot status.
+ match (page, &status) {
+ // last page, reset status for next round.
+ (0, _) => status = SnapshotStatus::Waiting,
+
+ (_, SnapshotStatus::Waiting) | (_, SnapshotStatus::Ongoing(_)) => {
+ let maybe_last = voters.last().map(|(x, _, _)| x).cloned();
+
+ if let Some(ref last) = maybe_last {
+ if maybe_last == T::VoterList::iter().last() {
+ // all voters in the voter list have been consumed.
+ status = SnapshotStatus::Consumed;
+ } else {
+ status = SnapshotStatus::Ongoing(last.clone());
+ }
+ }
+ },
+ // do nothing.
+ (_, SnapshotStatus::Consumed) => (),
+ }
+ log!(
+ info,
+ "[page {}, status {:?} (stake?: {:?}), bounds {:?}] generated {} npos voters",
+ page,
+ VoterSnapshotStatus::<T>::get(),
+ if let SnapshotStatus::Ongoing(x) = VoterSnapshotStatus::<T>::get() {
+ Self::weight_of(&x)
+ } else {
+ Zero::zero()
+ },
+ bounds,
+ voters.len(),
+ );
+ VoterSnapshotStatus::<T>::put(status);
+
+ debug_assert!(!bounds.slice_exhausted(&voters));
- debug_assert!(!bounds.exhausted(
- SizeBound(voters.encoded_size() as u32).into(),
- CountBound(voters.len() as u32).into()
- ));
+ Ok(voters)
+ }
+ fn electing_voters_stateless(
+ bounds: DataProviderBounds,
+ ) -> data_provider::Result<Vec<VoterOf<Self>>> {
+ let voters = Self::get_npos_voters(bounds, &SnapshotStatus::Waiting);
+ log!(
+ info,
+ "[stateless, status {:?}, bounds {:?}] generated {} npos voters",
+ VoterSnapshotStatus::<T>::get(),
+ bounds,
+ voters.len(),
+ );
Ok(voters)
}
- fn electable_targets(bounds: DataProviderBounds) -> data_provider::Result<Vec<T::AccountId>> {
- let targets = Self::get_npos_targets(bounds);
+ fn electable_targets(
+ bounds: DataProviderBounds,
+ page: PageIndex,
+ ) -> data_provider::Result<Vec<T::AccountId>> {
+ if page > 0 {
+ log!(warn, "multi-page target snapshot not supported, returning page 0.");
+ }
+ let targets = Self::get_npos_targets(bounds);
// We can't handle this case yet -- return an error. WIP to improve handling this case in
// <https://github.com/paritytech/substrate/pull/13195>.
- if bounds.exhausted(None, CountBound(T::TargetList::count() as u32).into()) {
+ if bounds.exhausted(None, CountBound(targets.len() as u32).into()) {
return Err("Target snapshot too big")
}
- debug_assert!(!bounds.exhausted(
- SizeBound(targets.encoded_size() as u32).into(),
- CountBound(targets.len() as u32).into()
- ));
+ debug_assert!(!bounds.slice_exhausted(&targets));
Ok(targets)
}
fn next_election_prediction(now: BlockNumberFor<T>) -> BlockNumberFor<T> {
+ if let Some(override_value) = BenchmarkNextElection::get() {
+ return override_value.into()
+ }
+
let current_era = CurrentEra::<T>::get().unwrap_or(0);
let current_session = CurrentPlannedSession::<T>::get();
let current_era_start_session_index =
@@ -1327,11 +1563,33 @@ impl<T: Config> ElectionDataProvider for Pallet<T> {
.into(),
};
+ // TODO: this is somewhat temp hack to fix this issue:
+ // in the new multi-block staking model, we finish the election one block before the session
+ // ends. In this very last block, we don't want to tell EP that the next election is in one
+ // blocks, but rather in a whole era from now. For simplification, while we are
+ // mid-election,we always point to one era later.
+ //
+ // This whole code path has to change when we move to the rc-client model.
+ if !ElectableStashes::<T>::get().is_empty() {
+ log!(debug, "we are mid-election, pointing to next era as election prediction.");
+ return now.saturating_add(
+ BlockNumberFor::<T>::from(T::SessionsPerEra::get()) * session_length,
+ )
+ }
+
now.saturating_add(
until_this_session_end.saturating_add(sessions_left.saturating_mul(session_length)),
)
}
+ #[cfg(feature = "runtime-benchmarks")]
+ fn set_next_election(to: u32) {
+ frame_benchmarking::benchmarking::add_to_whitelist(
+ BenchmarkNextElection::key().to_vec().into(),
+ );
+ BenchmarkNextElection::set(&Some(to));
+ }
+
#[cfg(feature = "runtime-benchmarks")]
fn add_voter(
voter: T::AccountId,
@@ -1349,7 +1607,7 @@ impl<T: Config> ElectionDataProvider for Pallet<T> {
#[cfg(feature = "runtime-benchmarks")]
fn add_target(target: T::AccountId) {
- let stake = MinValidatorBond::<T>::get() * 100u32.into();
+ let stake = (MinValidatorBond::<T>::get() + 1u32.into()) * 100u32.into();
<Bonded<T>>::insert(target.clone(), target.clone());
<Ledger<T>>::insert(target.clone(), StakingLedger::<T>::new(target.clone(), stake));
Self::do_add_validator(
@@ -1402,6 +1660,11 @@ impl<T: Config> ElectionDataProvider for Pallet<T> {
);
});
}
+
+ #[cfg(feature = "runtime-benchmarks")]
+ fn set_desired_targets(count: u32) {
+ ValidatorCount::<T>::put(count);
+ }
}
/// In this implementation `new_session(session)` must be called before `end_session(session-1)`
@@ -1410,6 +1673,15 @@ impl<T: Config> ElectionDataProvider for Pallet<T> {
/// Once the first new_session is planned, all session must start and then end in order, though
/// some session can lag in between the newest session planned and the latest session started.
impl<T: Config> pallet_session::SessionManager<T::AccountId> for Pallet<T> {
+ // └── Self::new_session(new_index, false)
+ // └── Self::try_plan_new_era(session_index, is_genesis)
+ // └── T::GenesisElectionProvider::elect() OR ElectableStashes::<T>::take()
+ // └── Self::collect_exposures()
+ // └── Self::store_stakers_info()
+ // └── Self::plan_new_era()
+ // └── CurrentEra increment
+ // └── ErasStartSessionIndex update
+ // └── Self::clear_era_information()
fn new_session(new_index: SessionIndex) -> Option<Vec<T::AccountId>> {
log!(trace, "planning new session {}", new_index);
CurrentPlannedSession::<T>::put(new_index);
@@ -1420,6 +1692,19 @@ impl<T: Config> pallet_session::SessionManager<T::AccountId> for Pallet<T> {
CurrentPlannedSession::<T>::put(new_index);
Self::new_session(new_index, true).map(|v| v.into_inner())
}
+ // start_session(start_session: SessionIndex)
+ // └── Check if this is the start of next active era
+ // └── Self::start_era(start_session)
+ // └── Update active era index
+ // └── Set active era start timestamp
+ // └── Update BondedEras
+ // └── Self::apply_unapplied_slashes()
+ // └── Get slashes for era from UnappliedSlashes
+ // └── Apply each slash
+ // └── Clear slashes metadata
+ // └── Process disabled validators
+ // └── Get all disabled validators
+ // └── Call T::SessionInterface::disable_validator() for each
fn start_session(start_index: SessionIndex) {
log!(trace, "starting session {}", start_index);
Self::start_session(start_index)
@@ -1909,7 +2194,7 @@ impl<T: Config> StakingInterface for Pallet<T> {
}
fn election_ongoing() -> bool {
- T::ElectionProvider::ongoing()
+ <T::ElectionProvider as ElectionProvider>::ongoing()
}
fn force_unstake(who: Self::AccountId) -> sp_runtime::DispatchResult {
@@ -1919,13 +2204,6 @@ impl<T: Config> StakingInterface for Pallet<T> {
}
fn is_exposed_in_era(who: &Self::AccountId, era: &EraIndex) -> bool {
- // look in the non paged exposures
- // FIXME: Can be cleaned up once non paged exposures are cleared (https://github.com/paritytech/polkadot-sdk/issues/433)
- ErasStakers::<T>::iter_prefix(era).any(|(validator, exposures)| {
- validator == *who || exposures.others.iter().any(|i| i.who == *who)
- })
- ||
- // look in the paged exposures
ErasStakersPaged::<T>::iter_prefix((era,)).any(|((validator, _), exposure_page)| {
validator == *who || exposure_page.others.iter().any(|i| i.who == *who)
})
@@ -1982,7 +2260,7 @@ impl<T: Config> StakingInterface for Pallet<T> {
.map(|(who, value)| IndividualExposure { who: who.clone(), value: *value })
.collect::<Vec<_>>();
let exposure = Exposure { total: Default::default(), own: Default::default(), others };
- EraInfo::<T>::set_exposure(*current_era, stash, exposure);
+ EraInfo::<T>::upsert_exposure(*current_era, stash, exposure);
}
fn set_current_era(era: EraIndex) {
@@ -2041,23 +2319,55 @@ impl<T: Config> sp_staking::StakingUnchecked for Pallet<T> {
#[cfg(any(test, feature = "try-runtime"))]
impl<T: Config> Pallet<T> {
- pub(crate) fn do_try_state(_: BlockNumberFor<T>) -> Result<(), TryRuntimeError> {
+ pub(crate) fn do_try_state(now: BlockNumberFor<T>) -> Result<(), TryRuntimeError> {
ensure!(
T::VoterList::iter()
.all(|x| <Nominators<T>>::contains_key(&x) || <Validators<T>>::contains_key(&x)),
"VoterList contains non-staker"
);
+ Self::ensure_snapshot_metadata_state(now)?;
Self::check_ledgers()?;
Self::check_bonded_consistency()?;
Self::check_payees()?;
Self::check_nominators()?;
- Self::check_exposures()?;
Self::check_paged_exposures()?;
Self::check_count()?;
Self::ensure_disabled_validators_sorted()
}
+ /// Test invariants of:
+ ///
+ /// - `NextElectionPage`: should only be set if pages > 1 and if we are within `pages-election
+ /// -> election`
+ /// - `VoterSnapshotStatus`: cannot be argued about as we don't know when we get a call to data
+ /// provider, but we know it should never be set if we have 1 page.
+ ///
+ /// -- SHOULD ONLY BE CALLED AT THE END OF A GIVEN BLOCK.
+ pub fn ensure_snapshot_metadata_state(now: BlockNumberFor<T>) -> Result<(), TryRuntimeError> {
+ let next_election = Self::next_election_prediction(now);
+ let pages = Self::election_pages().saturated_into::<BlockNumberFor<T>>();
+ let election_prep_start = next_election - pages;
+
+ if pages > One::one() && now >= election_prep_start {
+ ensure!(
+ NextElectionPage::<T>::get().is_some() || next_election == now + One::one(),
+ "NextElectionPage should be set mid election, except for last block"
+ );
+ } else if pages == One::one() {
+ ensure!(
+ NextElectionPage::<T>::get().is_none(),
+ "NextElectionPage should not be set mid election"
+ );
+ ensure!(
+ VoterSnapshotStatus::<T>::get() == SnapshotStatus::Waiting,
+ "VoterSnapshotStatus should not be set mid election"
+ );
+ }
+
+ Ok(())
+ }
+
/// Invariants:
/// * A controller should not be associated with more than one ledger.
/// * A bonded (stash, controller) pair should have only one associated ledger. I.e. if the
@@ -2149,11 +2459,13 @@ impl<T: Config> Pallet<T> {
<T as Config>::TargetList::count() == Validators::<T>::count(),
"wrong external count"
);
+ let max_validators_bound = MaxWinnersOf::<T>::get();
+ let max_winners_per_page_bound = MaxWinnersPerPageOf::<T::ElectionProvider>::get();
ensure!(
- ValidatorCount::<T>::get() <=
- <T::ElectionProvider as frame_election_provider_support::ElectionProviderBase>::MaxWinners::get(),
- Error::<T>::TooManyValidators
+ max_validators_bound >= max_winners_per_page_bound,
+ "max validators should be higher than per page bounds"
);
+ ensure!(ValidatorCount::<T>::get() <= max_validators_bound, Error::<T>::TooManyValidators);
Ok(())
}
@@ -2210,27 +2522,6 @@ impl<T: Config> Pallet<T> {
Ok(())
}
- /// Invariants:
- /// * For each era exposed validator, check if the exposure total is sane (exposure.total =
- /// exposure.own + exposure.own).
- fn check_exposures() -> Result<(), TryRuntimeError> {
- let era = ActiveEra::<T>::get().unwrap().index;
- ErasStakers::<T>::iter_prefix_values(era)
- .map(|expo| {
- ensure!(
- expo.total ==
- expo.own +
- expo.others
- .iter()
- .map(|e| e.value)
- .fold(Zero::zero(), |acc, x| acc + x),
- "wrong total exposure.",
- );
- Ok(())
- })
- .collect::<Result<(), TryRuntimeError>>()
- }
-
/// Invariants:
/// * For each paged era exposed validator, check if the exposure total is sane (exposure.total
/// = exposure.own + exposure.own).
diff --git a/substrate/frame/staking/src/pallet/mod.rs b/substrate/frame/staking/src/pallet/mod.rs
index 9d891462739..7d22df148de 100644
--- a/substrate/frame/staking/src/pallet/mod.rs
+++ b/substrate/frame/staking/src/pallet/mod.rs
@@ -17,28 +17,33 @@
//! Staking FRAME Pallet.
-use alloc::vec::Vec;
+use alloc::{format, vec::Vec};
use codec::Codec;
-use frame_election_provider_support::{
- ElectionProvider, ElectionProviderBase, SortedListProvider, VoteWeight,
-};
+use frame_election_provider_support::{ElectionProvider, SortedListProvider, VoteWeight};
use frame_support::{
+ assert_ok,
pallet_prelude::*,
traits::{
fungible::{
hold::{Balanced as FunHoldBalanced, Mutate as FunHoldMutate},
- Mutate as FunMutate,
+ Inspect, Mutate, Mutate as FunMutate,
},
Defensive, DefensiveSaturating, EnsureOrigin, EstimateNextNewSession, Get,
InspectLockableCurrency, OnUnbalanced, UnixTime,
},
weights::Weight,
- BoundedVec,
+ BoundedBTreeSet, BoundedVec,
};
use frame_system::{ensure_root, ensure_signed, pallet_prelude::*};
+use rand::seq::SliceRandom;
+use rand_chacha::{
+ rand_core::{RngCore, SeedableRng},
+ ChaChaRng,
+};
+use sp_core::{sr25519::Pair as SrPair, Pair};
use sp_runtime::{
traits::{SaturatedConversion, StaticLookup, Zero},
- ArithmeticError, Perbill, Percent,
+ ArithmeticError, Perbill, Percent, Saturating,
};
use sp_staking::{
@@ -54,10 +59,10 @@ pub use impls::*;
use crate::{
asset, slashing, weights::WeightInfo, AccountIdLookupOf, ActiveEraInfo, BalanceOf,
- DisablingStrategy, EraPayout, EraRewardPoints, Exposure, ExposurePage, Forcing,
- LedgerIntegrityState, MaxNominationsOf, NegativeImbalanceOf, Nominations, NominationsQuota,
- PositiveImbalanceOf, RewardDestination, SessionInterface, StakingLedger, UnappliedSlash,
- UnlockChunk, ValidatorPrefs,
+ DisablingStrategy, EraPayout, EraRewardPoints, ExposurePage, Forcing, LedgerIntegrityState,
+ MaxNominationsOf, NegativeImbalanceOf, Nominations, NominationsQuota, PositiveImbalanceOf,
+ RewardDestination, SessionInterface, StakingLedger, UnappliedSlash, UnlockChunk,
+ ValidatorPrefs,
};
// The speculative number of spans are used as an input of the weight annotation of
@@ -67,12 +72,11 @@ pub(crate) const SPECULATIVE_NUM_SPANS: u32 = 32;
#[frame_support::pallet]
pub mod pallet {
- use frame_election_provider_support::ElectionDataProvider;
-
- use crate::{BenchmarkingConfig, PagedExposureMetadata};
-
use super::*;
+ use crate::{BenchmarkingConfig, PagedExposureMetadata, SnapshotStatus};
+ use frame_election_provider_support::{ElectionDataProvider, PageIndex};
+
/// The in-code storage version.
const STORAGE_VERSION: StorageVersion = StorageVersion::new(16);
@@ -157,6 +161,8 @@ pub mod pallet {
AccountId = Self::AccountId,
BlockNumber = BlockNumberFor<Self>,
DataProvider = Pallet<Self>,
+ MaxWinnersPerPage = <Self::ElectionProvider as ElectionProvider>::MaxWinnersPerPage,
+ MaxBackersPerWinner = <Self::ElectionProvider as ElectionProvider>::MaxBackersPerWinner,
>;
/// Something that defines the maximum number of nominations per nominator.
@@ -166,10 +172,9 @@ pub mod pallet {
/// Number of eras to keep in history.
///
/// Following information is kept for eras in `[current_era -
- /// HistoryDepth, current_era]`: `ErasStakers`, `ErasStakersClipped`,
- /// `ErasValidatorPrefs`, `ErasValidatorReward`, `ErasRewardPoints`,
- /// `ErasTotalStake`, `ErasStartSessionIndex`, `ClaimedRewards`, `ErasStakersPaged`,
- /// `ErasStakersOverview`.
+ /// HistoryDepth, current_era]`: `ErasValidatorPrefs`, `ErasValidatorReward`,
+ /// `ErasRewardPoints`, `ErasTotalStake`, `ErasStartSessionIndex`, `ClaimedRewards`,
+ /// `ErasStakersPaged`, `ErasStakersOverview`.
///
/// Must be more than the number of eras delayed by session.
/// I.e. active era must always be in history. I.e. `active_era >
@@ -253,6 +258,13 @@ pub mod pallet {
#[pallet::constant]
type MaxExposurePageSize: Get<u32>;
+ /// The absolute maximum of winner validators this pallet should return.
+ ///
+ /// As this pallet supports multi-block election, the set of winner validators *per
+ /// election* is bounded by this type.
+ #[pallet::constant]
+ type MaxValidatorSet: Get<u32>;
+
/// Something that provides a best-effort sorted list of voters aka electing nominators,
/// used for NPoS election.
///
@@ -317,6 +329,14 @@ pub mod pallet {
#[pallet::no_default_bounds]
type DisablingStrategy: DisablingStrategy<Self>;
+ /// Maximum number of invulnerable validators.
+ #[pallet::constant]
+ type MaxInvulnerables: Get<u32>;
+
+ /// Maximum number of disabled validators.
+ #[pallet::constant]
+ type MaxDisabledValidators: Get<u32>;
+
/// Some parameters of the benchmarking.
#[cfg(feature = "std")]
type BenchmarkingConfig: BenchmarkingConfig;
@@ -371,7 +391,10 @@ pub mod pallet {
type NextNewSession = ();
type MaxExposurePageSize = ConstU32<64>;
type MaxUnlockingChunks = ConstU32<32>;
+ type MaxValidatorSet = ConstU32<100>;
type MaxControllersInDeprecationBatch = ConstU32<100>;
+ type MaxInvulnerables = ConstU32<20>;
+ type MaxDisabledValidators = ConstU32<100>;
type EventListeners = ();
type DisablingStrategy = crate::UpToLimitDisablingStrategy;
#[cfg(feature = "std")]
@@ -392,8 +415,8 @@ pub mod pallet {
/// easy to initialize and the performance hit is minimal (we expect no more than four
/// invulnerables) and restricted to testnets.
#[pallet::storage]
- #[pallet::unbounded]
- pub type Invulnerables<T: Config> = StorageValue<_, Vec<T::AccountId>, ValueQuery>;
+ pub type Invulnerables<T: Config> =
+ StorageValue<_, BoundedVec<T::AccountId, T::MaxInvulnerables>, ValueQuery>;
/// Map from all locked "stash" accounts to the controller account.
///
@@ -505,26 +528,6 @@ pub mod pallet {
#[pallet::storage]
pub type ErasStartSessionIndex<T> = StorageMap<_, Twox64Concat, EraIndex, SessionIndex>;
- /// Exposure of validator at era.
- ///
- /// This is keyed first by the era index to allow bulk deletion and then the stash account.
- ///
- /// Is it removed after [`Config::HistoryDepth`] eras.
- /// If stakers hasn't been set or has been removed then empty exposure is returned.
- ///
- /// Note: Deprecated since v14. Use `EraInfo` instead to work with exposures.
- #[pallet::storage]
- #[pallet::unbounded]
- pub type ErasStakers<T: Config> = StorageDoubleMap<
- _,
- Twox64Concat,
- EraIndex,
- Twox64Concat,
- T::AccountId,
- Exposure<T::AccountId, BalanceOf<T>>,
- ValueQuery,
- >;
-
/// Summary of validator exposure at a given era.
///
/// This contains the total stake in support of the validator and their own stake. In addition,
@@ -548,34 +551,6 @@ pub mod pallet {
OptionQuery,
>;
- /// Clipped Exposure of validator at era.
- ///
- /// Note: This is deprecated, should be used as read-only and will be removed in the future.
- /// New `Exposure`s are stored in a paged manner in `ErasStakersPaged` instead.
- ///
- /// This is similar to [`ErasStakers`] but number of nominators exposed is reduced to the
- /// `T::MaxExposurePageSize` biggest stakers.
- /// (Note: the field `total` and `own` of the exposure remains unchanged).
- /// This is used to limit the i/o cost for the nominator payout.
- ///
- /// This is keyed fist by the era index to allow bulk deletion and then the stash account.
- ///
- /// It is removed after [`Config::HistoryDepth`] eras.
- /// If stakers hasn't been set or has been removed then empty exposure is returned.
- ///
- /// Note: Deprecated since v14. Use `EraInfo` instead to work with exposures.
- #[pallet::storage]
- #[pallet::unbounded]
- pub type ErasStakersClipped<T: Config> = StorageDoubleMap<
- _,
- Twox64Concat,
- EraIndex,
- Twox64Concat,
- T::AccountId,
- Exposure<T::AccountId, BalanceOf<T>>,
- ValueQuery,
- >;
-
/// Paginated exposure of a validator at given era.
///
/// This is keyed first by the era index to allow bulk deletion, then stash account and finally
@@ -613,7 +588,7 @@ pub mod pallet {
ValueQuery,
>;
- /// Similar to `ErasStakers`, this holds the preferences of validators.
+ /// Exposure of validator at era with the preferences of validators.
///
/// This is keyed first by the era index to allow bulk deletion and then the stash account.
///
@@ -741,9 +716,8 @@ pub mod pallet {
/// Additionally, each disabled validator is associated with an `OffenceSeverity` which
/// represents how severe is the offence that got the validator disabled.
#[pallet::storage]
- #[pallet::unbounded]
pub type DisabledValidators<T: Config> =
- StorageValue<_, Vec<(u32, OffenceSeverity)>, ValueQuery>;
+ StorageValue<_, BoundedVec<(u32, OffenceSeverity), T::MaxDisabledValidators>, ValueQuery>;
/// The threshold for when users can start calling `chill_other` for other validators /
/// nominators. The threshold is compared to the actual number of validators / nominators
@@ -751,12 +725,34 @@ pub mod pallet {
#[pallet::storage]
pub(crate) type ChillThreshold<T: Config> = StorageValue<_, Percent, OptionQuery>;
+ /// Voter snapshot progress status.
+ ///
+ /// If the status is `Ongoing`, it keeps a cursor of the last voter retrieved to proceed when
+ /// creating the next snapshot page.
+ #[pallet::storage]
+ pub(crate) type VoterSnapshotStatus<T: Config> =
+ StorageValue<_, SnapshotStatus<T::AccountId>, ValueQuery>;
+
+ /// Keeps track of an ongoing multi-page election solution request.
+ ///
+ /// If `Some(_)``, it is the next page that we intend to elect. If `None`, we are not in the
+ /// election process.
+ ///
+ /// This is only set in multi-block elections. Should always be `None` otherwise.
+ #[pallet::storage]
+ pub(crate) type NextElectionPage<T: Config> = StorageValue<_, PageIndex, OptionQuery>;
+
+ /// A bounded list of the "electable" stashes that resulted from a successful election.
+ #[pallet::storage]
+ pub(crate) type ElectableStashes<T: Config> =
+ StorageValue<_, BoundedBTreeSet<T::AccountId, T::MaxValidatorSet>, ValueQuery>;
+
#[pallet::genesis_config]
#[derive(frame_support::DefaultNoBound)]
pub struct GenesisConfig<T: Config> {
pub validator_count: u32,
pub minimum_validator_count: u32,
- pub invulnerables: Vec<T::AccountId>,
+ pub invulnerables: BoundedVec<T::AccountId, T::MaxInvulnerables>,
pub force_era: Forcing,
pub slash_reward_fraction: Perbill,
pub canceled_payout: BalanceOf<T>,
@@ -766,6 +762,39 @@ pub mod pallet {
pub min_validator_bond: BalanceOf<T>,
pub max_validator_count: Option<u32>,
pub max_nominator_count: Option<u32>,
+ /// Create the given number of validators and nominators.
+ ///
+ /// These account need not be in the endowment list of balances, and are auto-topped up
+ /// here.
+ ///
+ /// Useful for testing genesis config.
+ pub dev_stakers: Option<(u32, u32)>,
+ }
+
+ impl<T: Config> GenesisConfig<T> {
+ fn generate_endowed_bonded_account(
+ derivation: &str,
+ rng: &mut ChaChaRng,
+ min_validator_bond: BalanceOf<T>,
+ ) -> T::AccountId {
+ let pair: SrPair = Pair::from_string(&derivation, None)
+ .expect(&format!("Failed to parse derivation string: {derivation}"));
+ let who = T::AccountId::decode(&mut &pair.public().encode()[..])
+ .expect(&format!("Failed to decode public key from pair: {:?}", pair.public()));
+
+ let stake = BalanceOf::<T>::from(rng.next_u64())
+ .max(T::Currency::minimum_balance())
+ .max(min_validator_bond);
+ let two: BalanceOf<T> = 2u64.into();
+
+ assert_ok!(T::Currency::mint_into(&who, stake * two));
+ assert_ok!(<Pallet<T>>::bond(
+ T::RuntimeOrigin::from(Some(who.clone()).into()),
+ stake,
+ RewardDestination::Staked,
+ ));
+ who
+ }
}
#[pallet::genesis_build]
@@ -773,7 +802,11 @@ pub mod pallet {
fn build(&self) {
ValidatorCount::<T>::put(self.validator_count);
MinimumValidatorCount::<T>::put(self.minimum_validator_count);
- Invulnerables::<T>::put(&self.invulnerables);
+ assert!(
+ self.invulnerables.len() as u32 <= T::MaxInvulnerables::get(),
+ "Too many invulnerable validators at genesis."
+ );
+ <Invulnerables<T>>::put(&self.invulnerables);
ForceEra::<T>::put(self.force_era);
CanceledSlashPayout::<T>::put(self.canceled_payout);
SlashRewardFraction::<T>::put(self.slash_reward_fraction);
@@ -798,12 +831,12 @@ pub mod pallet {
asset::free_to_stake::<T>(stash) >= balance,
"Stash does not have enough balance to bond."
);
- frame_support::assert_ok!(<Pallet<T>>::bond(
+ assert_ok!(<Pallet<T>>::bond(
T::RuntimeOrigin::from(Some(stash.clone()).into()),
balance,
RewardDestination::Staked,
));
- frame_support::assert_ok!(match status {
+ assert_ok!(match status {
crate::StakerStatus::Validator => <Pallet<T>>::validate(
T::RuntimeOrigin::from(Some(stash.clone()).into()),
Default::default(),
@@ -816,7 +849,8 @@ pub mod pallet {
});
assert!(
ValidatorCount::<T>::get() <=
- <T::ElectionProvider as ElectionProviderBase>::MaxWinners::get()
+ <T::ElectionProvider as ElectionProvider>::MaxWinnersPerPage::get() *
+ <T::ElectionProvider as ElectionProvider>::Pages::get()
);
}
@@ -826,6 +860,58 @@ pub mod pallet {
Nominators::<T>::count() + Validators::<T>::count(),
"not all genesis stakers were inserted into sorted list provider, something is wrong."
);
+
+ // now generate the dev stakers, after all else is setup
+ if let Some((validators, nominators)) = self.dev_stakers {
+ crate::log!(
+ debug,
+ "generating dev stakers: validators: {}, nominators: {}",
+ validators,
+ nominators
+ );
+ let base_derivation = "//staker//{}";
+
+ // it is okay for the randomness to be the same on every call. If we want different,
+ // we can make `base_derivation` configurable.
+ let mut rng =
+ ChaChaRng::from_seed(base_derivation.using_encoded(sp_core::blake2_256));
+
+ let validators = (0..validators)
+ .map(|index| {
+ let derivation =
+ base_derivation.replace("{}", &format!("validator{}", index));
+ let who = Self::generate_endowed_bonded_account(
+ &derivation,
+ &mut rng,
+ self.min_validator_bond,
+ );
+ assert_ok!(<Pallet<T>>::validate(
+ T::RuntimeOrigin::from(Some(who.clone()).into()),
+ Default::default(),
+ ));
+ who
+ })
+ .collect::<Vec<_>>();
+
+ (0..nominators).for_each(|index| {
+ let derivation = base_derivation.replace("{}", &format!("nominator{}", index));
+ let who = Self::generate_endowed_bonded_account(
+ &derivation,
+ &mut rng,
+ self.min_validator_bond,
+ );
+
+ let random_nominations = validators
+ .choose_multiple(&mut rng, MaxNominationsOf::<T>::get() as usize)
+ .map(|v| v.clone())
+ .collect::<Vec<_>>();
+
+ assert_ok!(<Pallet<T>>::nominate(
+ T::RuntimeOrigin::from(Some(who.clone()).into()),
+ random_nominations.iter().map(|l| T::Lookup::unlookup(l.clone())).collect(),
+ ));
+ })
+ }
}
}
@@ -834,7 +920,11 @@ pub mod pallet {
pub enum Event<T: Config> {
/// The era payout has been set; the first balance is the validator-payout; the second is
/// the remainder from the maximum amount of reward.
- EraPaid { era_index: EraIndex, validator_payout: BalanceOf<T>, remainder: BalanceOf<T> },
+ EraPaid {
+ era_index: EraIndex,
+ validator_payout: BalanceOf<T>,
+ remainder: BalanceOf<T>,
+ },
/// The nominator has been rewarded by this amount to this destination.
Rewarded {
stash: T::AccountId,
@@ -842,31 +932,54 @@ pub mod pallet {
amount: BalanceOf<T>,
},
/// A staker (validator or nominator) has been slashed by the given amount.
- Slashed { staker: T::AccountId, amount: BalanceOf<T> },
+ Slashed {
+ staker: T::AccountId,
+ amount: BalanceOf<T>,
+ },
/// A slash for the given validator, for the given percentage of their stake, at the given
/// era as been reported.
- SlashReported { validator: T::AccountId, fraction: Perbill, slash_era: EraIndex },
+ SlashReported {
+ validator: T::AccountId,
+ fraction: Perbill,
+ slash_era: EraIndex,
+ },
/// An old slashing report from a prior era was discarded because it could
/// not be processed.
- OldSlashingReportDiscarded { session_index: SessionIndex },
+ OldSlashingReportDiscarded {
+ session_index: SessionIndex,
+ },
/// A new set of stakers was elected.
StakersElected,
/// An account has bonded this amount. \[stash, amount\]
///
/// NOTE: This event is only emitted when funds are bonded via a dispatchable. Notably,
/// it will not be emitted for staking rewards when they are added to stake.
- Bonded { stash: T::AccountId, amount: BalanceOf<T> },
+ Bonded {
+ stash: T::AccountId,
+ amount: BalanceOf<T>,
+ },
/// An account has unbonded this amount.
- Unbonded { stash: T::AccountId, amount: BalanceOf<T> },
+ Unbonded {
+ stash: T::AccountId,
+ amount: BalanceOf<T>,
+ },
/// An account has called `withdraw_unbonded` and removed unbonding chunks worth `Balance`
/// from the unlocking queue.
- Withdrawn { stash: T::AccountId, amount: BalanceOf<T> },
+ Withdrawn {
+ stash: T::AccountId,
+ amount: BalanceOf<T>,
+ },
/// A nominator has been kicked from a validator.
- Kicked { nominator: T::AccountId, stash: T::AccountId },
+ Kicked {
+ nominator: T::AccountId,
+ stash: T::AccountId,
+ },
/// The election failed. No new era is planned.
StakingElectionFailed,
/// An account has stopped participating as either a validator or nominator.
- Chilled { stash: T::AccountId },
+ Chilled {
+ stash: T::AccountId,
+ },
/// A Page of stakers rewards are getting paid. `next` is `None` if all pages are claimed.
PayoutStarted {
era_index: EraIndex,
@@ -875,22 +988,52 @@ pub mod pallet {
next: Option<Page>,
},
/// A validator has set their preferences.
- ValidatorPrefsSet { stash: T::AccountId, prefs: ValidatorPrefs },
+ ValidatorPrefsSet {
+ stash: T::AccountId,
+ prefs: ValidatorPrefs,
+ },
/// Voters size limit reached.
- SnapshotVotersSizeExceeded { size: u32 },
+ SnapshotVotersSizeExceeded {
+ size: u32,
+ },
/// Targets size limit reached.
- SnapshotTargetsSizeExceeded { size: u32 },
- /// A new force era mode was set.
- ForceEra { mode: Forcing },
+ SnapshotTargetsSizeExceeded {
+ size: u32,
+ },
+ ForceEra {
+ mode: Forcing,
+ },
/// Report of a controller batch deprecation.
- ControllerBatchDeprecated { failures: u32 },
+ ControllerBatchDeprecated {
+ failures: u32,
+ },
/// Validator has been disabled.
- ValidatorDisabled { stash: T::AccountId },
+ ValidatorDisabled {
+ stash: T::AccountId,
+ },
/// Validator has been re-enabled.
- ValidatorReenabled { stash: T::AccountId },
+ ValidatorReenabled {
+ stash: T::AccountId,
+ },
/// Staking balance migrated from locks to holds, with any balance that could not be held
/// is force withdrawn.
- CurrencyMigrated { stash: T::AccountId, force_withdraw: BalanceOf<T> },
+ CurrencyMigrated {
+ stash: T::AccountId,
+ force_withdraw: BalanceOf<T>,
+ },
+ /// A page from a multi-page election was fetched. A number of these are followed by
+ /// `StakersElected`.
+ ///
+ /// `Ok(count)` indicates the give number of stashes were added.
+ /// `Err(index)` indicates that the stashes after index were dropped.
+ /// `Err(0)` indicates that an error happened but no stashes were dropped nor added.
+ ///
+ /// The error indicates that a number of validators were dropped due to excess size, but
+ /// the overall election will continue.
+ PagedElectionProceeded {
+ page: PageIndex,
+ result: Result<u32, u32>,
+ },
}
#[pallet::error]
@@ -970,9 +1113,38 @@ pub mod pallet {
#[pallet::hooks]
impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {
- fn on_initialize(_now: BlockNumberFor<T>) -> Weight {
- // just return the weight of the on_finalize.
- T::DbWeight::get().reads(1)
+ /// Start fetching the election pages `Pages` blocks before the election prediction, so
+ /// that the `ElectableStashes` has been populated with all validators from all pages at
+ /// the time of the election.
+ fn on_initialize(now: BlockNumberFor<T>) -> Weight {
+ let pages = Self::election_pages();
+
+ // election ongoing, fetch the next page.
+ let inner_weight = if let Some(next_page) = NextElectionPage::<T>::get() {
+ let next_next_page = next_page.checked_sub(1);
+ NextElectionPage::<T>::set(next_next_page);
+ Self::do_elect_paged(next_page)
+ } else {
+ // election isn't ongoing yet, check if it should start.
+ let next_election = <Self as ElectionDataProvider>::next_election_prediction(now);
+
+ if now == (next_election.saturating_sub(pages.into())) {
+ crate::log!(
+ debug,
+ "elect(): start fetching solution pages. expected pages: {:?}",
+ pages
+ );
+
+ let current_page = pages.saturating_sub(1);
+ let next_page = current_page.checked_sub(1);
+ NextElectionPage::<T>::set(next_page);
+ Self::do_elect_paged(current_page)
+ } else {
+ Weight::default()
+ }
+ };
+
+ T::WeightInfo::on_initialize_noop().saturating_add(inner_weight)
}
fn on_finalize(_n: BlockNumberFor<T>) {
@@ -998,18 +1170,12 @@ pub mod pallet {
// and that MaxNominations is always greater than 1, since we count on this.
assert!(!MaxNominationsOf::<T>::get().is_zero());
- // ensure election results are always bounded with the same value
- assert!(
- <T::ElectionProvider as ElectionProviderBase>::MaxWinners::get() ==
- <T::GenesisElectionProvider as ElectionProviderBase>::MaxWinners::get()
- );
-
assert!(
T::SlashDeferDuration::get() < T::BondingDuration::get() || T::BondingDuration::get() == 0,
"As per documentation, slash defer duration ({}) should be less than bonding duration ({}).",
T::SlashDeferDuration::get(),
T::BondingDuration::get(),
- )
+ );
}
#[cfg(feature = "try-runtime")]
@@ -1030,7 +1196,7 @@ pub mod pallet {
}
/// Get the validators that may never be slashed or forcibly kicked out.
- pub fn invulnerables() -> Vec<T::AccountId> {
+ pub fn invulnerables() -> BoundedVec<T::AccountId, T::MaxInvulnerables> {
Invulnerables::<T>::get()
}
@@ -1073,18 +1239,6 @@ pub mod pallet {
ErasStartSessionIndex::<T>::get(era_index)
}
- /// Get the clipped exposure of a given validator at an era.
- pub fn eras_stakers_clipped<EncodeLikeEraIndex, EncodeLikeAccountId>(
- era_index: EncodeLikeEraIndex,
- account_id: EncodeLikeAccountId,
- ) -> Exposure<T::AccountId, BalanceOf<T>>
- where
- EncodeLikeEraIndex: codec::EncodeLike<EraIndex>,
- EncodeLikeAccountId: codec::EncodeLike<T::AccountId>,
- {
- ErasStakersClipped::<T>::get(era_index, account_id)
- }
-
/// Get the paged history of claimed rewards by era for given validator.
pub fn claimed_rewards<EncodeLikeEraIndex, EncodeLikeAccountId>(
era_index: EncodeLikeEraIndex,
@@ -1604,18 +1758,15 @@ pub mod pallet {
#[pallet::compact] new: u32,
) -> DispatchResult {
ensure_root(origin)?;
- // ensure new validator count does not exceed maximum winners
- // support by election provider.
- ensure!(
- new <= <T::ElectionProvider as ElectionProviderBase>::MaxWinners::get(),
- Error::<T>::TooManyValidators
- );
+
+ ensure!(new <= T::MaxValidatorSet::get(), Error::<T>::TooManyValidators);
+
ValidatorCount::<T>::put(new);
Ok(())
}
/// Increments the ideal number of validators up to maximum of
- /// `ElectionProviderBase::MaxWinners`.
+ /// `T::MaxValidatorSet`.
///
/// The dispatch origin must be Root.
///
@@ -1630,17 +1781,15 @@ pub mod pallet {
ensure_root(origin)?;
let old = ValidatorCount::<T>::get();
let new = old.checked_add(additional).ok_or(ArithmeticError::Overflow)?;
- ensure!(
- new <= <T::ElectionProvider as ElectionProviderBase>::MaxWinners::get(),
- Error::<T>::TooManyValidators
- );
+
+ ensure!(new <= T::MaxValidatorSet::get(), Error::<T>::TooManyValidators);
ValidatorCount::<T>::put(new);
Ok(())
}
/// Scale up the ideal number of validators by a factor up to maximum of
- /// `ElectionProviderBase::MaxWinners`.
+ /// `T::MaxValidatorSet`.
///
/// The dispatch origin must be Root.
///
@@ -1653,10 +1802,7 @@ pub mod pallet {
let old = ValidatorCount::<T>::get();
let new = old.checked_add(factor.mul_floor(old)).ok_or(ArithmeticError::Overflow)?;
- ensure!(
- new <= <T::ElectionProvider as ElectionProviderBase>::MaxWinners::get(),
- Error::<T>::TooManyValidators
- );
+ ensure!(new <= T::MaxValidatorSet::get(), Error::<T>::TooManyValidators);
ValidatorCount::<T>::put(new);
Ok(())
@@ -1715,6 +1861,8 @@ pub mod pallet {
invulnerables: Vec<T::AccountId>,
) -> DispatchResult {
ensure_root(origin)?;
+ let invulnerables =
+ BoundedVec::try_from(invulnerables).map_err(|_| Error::<T>::BoundNotMet)?;
<Invulnerables<T>>::put(invulnerables);
Ok(())
}
@@ -1810,6 +1958,7 @@ pub mod pallet {
era: EraIndex,
) -> DispatchResultWithPostInfo {
ensure_signed(origin)?;
+
Self::do_payout_stakers(validator_stash, era)
}
diff --git a/substrate/frame/staking/src/slashing.rs b/substrate/frame/staking/src/slashing.rs
index ae76b0707dc..98a6424fe7a 100644
--- a/substrate/frame/staking/src/slashing.rs
+++ b/substrate/frame/staking/src/slashing.rs
@@ -340,13 +340,15 @@ fn add_offending_validator<T: Config>(params: &SlashParams<T>) {
},
Err(index) => {
// Offender is not disabled, add to `DisabledValidators` and disable it
- disabled.insert(index, (offender_idx, new_severity));
- // Propagate disablement to session level
- T::SessionInterface::disable_validator(offender_idx);
- // Emit event that a validator got disabled
- <Pallet<T>>::deposit_event(super::Event::<T>::ValidatorDisabled {
- stash: params.stash.clone(),
- });
+ if disabled.try_insert(index, (offender_idx, new_severity)).defensive().is_ok()
+ {
+ // Propagate disablement to session level
+ T::SessionInterface::disable_validator(offender_idx);
+ // Emit event that a validator got disabled
+ <Pallet<T>>::deposit_event(super::Event::<T>::ValidatorDisabled {
+ stash: params.stash.clone(),
+ });
+ }
},
}
}
diff --git a/substrate/frame/staking/src/tests.rs b/substrate/frame/staking/src/tests.rs
index e8740f15af2..8fe3c8f1775 100644
--- a/substrate/frame/staking/src/tests.rs
+++ b/substrate/frame/staking/src/tests.rs
@@ -32,6 +32,7 @@ use frame_support::{
fungible::Inspect, Currency, Get, InspectLockableCurrency, LockableCurrency,
ReservableCurrency, WithdrawReasons,
},
+ BoundedVec,
};
use mock::*;
@@ -1371,6 +1372,7 @@ fn bond_extra_and_withdraw_unbonded_works() {
legacy_claimed_rewards: bounded_vec![],
}
);
+
assert_eq!(
Staking::eras_stakers(active_era(), &11),
Exposure { total: 1000, own: 1000, others: vec![] }
@@ -1921,7 +1923,11 @@ fn reward_to_stake_works() {
let _ = asset::set_stakeable_balance::<Test>(&20, 1000);
// Bypass logic and change current exposure
- EraInfo::<Test>::set_exposure(0, &21, Exposure { total: 69, own: 69, others: vec![] });
+ EraInfo::<Test>::upsert_exposure(
+ 0,
+ &21,
+ Exposure { total: 69, own: 69, others: vec![] },
+ );
<Ledger<Test>>::insert(
&20,
StakingLedgerInspect {
@@ -2272,14 +2278,14 @@ fn bond_with_duplicate_vote_should_be_ignored_by_election_provider() {
// winners should be 21 and 31. Otherwise this election is taking duplicates into
// account.
- let supports = <Test as Config>::ElectionProvider::elect().unwrap();
- assert_eq!(
- supports,
- vec![
- (21, Support { total: 1800, voters: vec![(21, 1000), (1, 400), (3, 400)] }),
- (31, Support { total: 2200, voters: vec![(31, 1000), (1, 600), (3, 600)] })
- ],
- );
+ let supports = <Test as Config>::ElectionProvider::elect(SINGLE_PAGE).unwrap();
+
+ let expected_supports = vec![
+ (21, Support { total: 1800, voters: vec![(21, 1000), (1, 400), (3, 400)] }),
+ (31, Support { total: 2200, voters: vec![(31, 1000), (1, 600), (3, 600)] }),
+ ];
+
+ assert_eq!(supports, to_bounded_supports(expected_supports));
});
}
@@ -2324,14 +2330,13 @@ fn bond_with_duplicate_vote_should_be_ignored_by_election_provider_elected() {
assert_ok!(Staking::nominate(RuntimeOrigin::signed(3), vec![21]));
// winners should be 21 and 11.
- let supports = <Test as Config>::ElectionProvider::elect().unwrap();
- assert_eq!(
- supports,
- vec![
- (11, Support { total: 1500, voters: vec![(11, 1000), (1, 500)] }),
- (21, Support { total: 2500, voters: vec![(21, 1000), (1, 500), (3, 1000)] })
- ],
- );
+ let supports = <Test as Config>::ElectionProvider::elect(SINGLE_PAGE).unwrap();
+ let expected_supports = vec![
+ (11, Support { total: 1500, voters: vec![(11, 1000), (1, 500)] }),
+ (21, Support { total: 2500, voters: vec![(21, 1000), (1, 500), (3, 1000)] }),
+ ];
+
+ assert_eq!(supports, to_bounded_supports(expected_supports));
});
}
@@ -2374,7 +2379,7 @@ fn phragmen_should_not_overflow() {
#[test]
fn reward_validator_slashing_validator_does_not_overflow() {
- ExtBuilder::default().build_and_execute(|| {
+ ExtBuilder::default().nominate(false).build_and_execute(|| {
let stake = u64::MAX as Balance * 2;
let reward_slash = u64::MAX as Balance * 2;
@@ -2384,7 +2389,6 @@ fn reward_validator_slashing_validator_does_not_overflow() {
// Set staker
let _ = asset::set_stakeable_balance::<Test>(&11, stake);
- let exposure = Exposure::<AccountId, Balance> { total: stake, own: stake, others: vec![] };
let reward = EraRewardPoints::<AccountId> {
total: 1,
individual: vec![(11, 1)].into_iter().collect(),
@@ -2392,7 +2396,19 @@ fn reward_validator_slashing_validator_does_not_overflow() {
// Check reward
ErasRewardPoints::<Test>::insert(0, reward);
- EraInfo::<Test>::set_exposure(0, &11, exposure);
+
+ // force exposure metadata to account for the overflowing `stake`.
+ ErasStakersOverview::<Test>::insert(
+ current_era(),
+ 11,
+ PagedExposureMetadata { total: stake, own: stake, nominator_count: 0, page_count: 0 },
+ );
+
+ // we want to slash only self-stake, confirm that no others exposed.
+ let full_exposure_after = EraInfo::<Test>::get_full_exposure(current_era(), &11);
+ assert_eq!(full_exposure_after.total, stake);
+ assert_eq!(full_exposure_after.others, vec![]);
+
ErasValidatorReward::<Test>::insert(0, stake);
assert_ok!(Staking::payout_stakers_by_page(RuntimeOrigin::signed(1337), 11, 0, 0));
assert_eq!(asset::stakeable_balance::<Test>(&11), stake * 2);
@@ -2414,13 +2430,19 @@ fn reward_validator_slashing_validator_does_not_overflow() {
// only slashes out of bonded stake are applied. without this line, it is 0.
Staking::bond(RuntimeOrigin::signed(2), stake - 1, RewardDestination::Staked).unwrap();
- // Override exposure of 11
- EraInfo::<Test>::set_exposure(
- 0,
- &11,
- Exposure {
- total: stake,
- own: 1,
+
+ // Override metadata and exposures of 11 so that it exposes minmal self stake and `stake` -
+ // 1 from nominator 2.
+ ErasStakersOverview::<Test>::insert(
+ current_era(),
+ 11,
+ PagedExposureMetadata { total: stake, own: 1, nominator_count: 1, page_count: 1 },
+ );
+
+ ErasStakersPaged::<Test>::insert(
+ (current_era(), &11, 0),
+ ExposurePage {
+ page_total: stake - 1,
others: vec![IndividualExposure { who: 2, value: stake - 1 }],
},
);
@@ -3128,6 +3150,7 @@ fn deferred_slashes_are_deferred() {
staking_events_since_last_call().as_slice(),
&[
Event::SlashReported { validator: 11, slash_era: 1, .. },
+ Event::PagedElectionProceeded { page: 0, result: Ok(2) },
Event::StakersElected,
..,
Event::Slashed { staker: 11, amount: 100 },
@@ -3464,6 +3487,7 @@ fn slash_kicks_validators_not_nominators_and_disables_nominator_for_kicked_valid
assert_eq!(
staking_events_since_last_call(),
vec![
+ Event::PagedElectionProceeded { page: 0, result: Ok(7) },
Event::StakersElected,
Event::EraPaid { era_index: 0, validator_payout: 11075, remainder: 33225 },
Event::SlashReported {
@@ -3537,6 +3561,7 @@ fn non_slashable_offence_disables_validator() {
assert_eq!(
staking_events_since_last_call(),
vec![
+ Event::PagedElectionProceeded { page: 0, result: Ok(7) },
Event::StakersElected,
Event::EraPaid { era_index: 0, validator_payout: 11075, remainder: 33225 },
Event::SlashReported {
@@ -3617,6 +3642,7 @@ fn slashing_independent_of_disabling_validator() {
assert_eq!(
staking_events_since_last_call(),
vec![
+ Event::PagedElectionProceeded { page: 0, result: Ok(5) },
Event::StakersElected,
Event::EraPaid { era_index: 0, validator_payout: 11075, remainder: 33225 },
Event::SlashReported {
@@ -3645,7 +3671,7 @@ fn slashing_independent_of_disabling_validator() {
}
#[test]
-fn offence_threshold_doesnt_trigger_new_era() {
+fn offence_threshold_doesnt_plan_new_era() {
ExtBuilder::default()
.validator_count(4)
.set_status(41, StakerStatus::Validator)
@@ -3883,12 +3909,17 @@ fn six_session_delay() {
// pallet-session is delaying session by one, thus the next session to plan is +2.
assert_eq!(<Staking as SessionManager<_>>::new_session(init_session + 2), None);
+
+ // note a new election happens independently of the call to `new_session`.
+ Staking::do_elect_paged(0);
assert_eq!(
<Staking as SessionManager<_>>::new_session(init_session + 3),
Some(val_set.clone())
);
assert_eq!(<Staking as SessionManager<_>>::new_session(init_session + 4), None);
assert_eq!(<Staking as SessionManager<_>>::new_session(init_session + 5), None);
+
+ Staking::do_elect_paged(0);
assert_eq!(
<Staking as SessionManager<_>>::new_session(init_session + 6),
Some(val_set.clone())
@@ -4129,17 +4160,8 @@ fn test_multi_page_payout_stakers_by_page() {
);
// verify rewards are tracked to prevent double claims
- let ledger = Staking::ledger(11.into());
for page in 0..EraInfo::<Test>::get_page_count(1, &11) {
- assert_eq!(
- EraInfo::<Test>::is_rewards_claimed_with_legacy_fallback(
- 1,
- ledger.as_ref().unwrap(),
- &11,
- page
- ),
- true
- );
+ assert_eq!(EraInfo::<Test>::is_rewards_claimed(1, &11, page), true);
}
for i in 3..16 {
@@ -4161,15 +4183,7 @@ fn test_multi_page_payout_stakers_by_page() {
// verify we track rewards for each era and page
for page in 0..EraInfo::<Test>::get_page_count(i - 1, &11) {
- assert_eq!(
- EraInfo::<Test>::is_rewards_claimed_with_legacy_fallback(
- i - 1,
- Staking::ledger(11.into()).as_ref().unwrap(),
- &11,
- page
- ),
- true
- );
+ assert_eq!(EraInfo::<Test>::is_rewards_claimed(i - 1, &11, page), true);
}
}
@@ -4328,7 +4342,6 @@ fn test_multi_page_payout_stakers_backward_compatible() {
}
// verify we no longer track rewards in `legacy_claimed_rewards` vec
- let ledger = Staking::ledger(11.into());
assert_eq!(
Staking::ledger(11.into()).unwrap(),
StakingLedgerInspect {
@@ -4342,15 +4355,7 @@ fn test_multi_page_payout_stakers_backward_compatible() {
// verify rewards are tracked to prevent double claims
for page in 0..EraInfo::<Test>::get_page_count(1, &11) {
- assert_eq!(
- EraInfo::<Test>::is_rewards_claimed_with_legacy_fallback(
- 1,
- ledger.as_ref().unwrap(),
- &11,
- page
- ),
- true
- );
+ assert_eq!(EraInfo::<Test>::is_rewards_claimed(1, &11, page), true);
}
for i in 3..16 {
@@ -4372,15 +4377,7 @@ fn test_multi_page_payout_stakers_backward_compatible() {
// verify we track rewards for each era and page
for page in 0..EraInfo::<Test>::get_page_count(i - 1, &11) {
- assert_eq!(
- EraInfo::<Test>::is_rewards_claimed_with_legacy_fallback(
- i - 1,
- Staking::ledger(11.into()).as_ref().unwrap(),
- &11,
- page
- ),
- true
- );
+ assert_eq!(EraInfo::<Test>::is_rewards_claimed(i - 1, &11, page), true);
}
}
@@ -4492,6 +4489,7 @@ fn test_page_count_and_size() {
mock::start_active_era(1);
// Since max exposure page size is 64, 2 pages of nominators are created.
+ assert_eq!(MaxExposurePageSize::get(), 64);
assert_eq!(EraInfo::<Test>::get_page_count(1, &11), 2);
// first page has 64 nominators
@@ -5206,41 +5204,6 @@ mod election_data_provider {
use super::*;
use frame_election_provider_support::ElectionDataProvider;
- #[test]
- fn targets_2sec_block() {
- let mut validators = 1000;
- while <Test as Config>::WeightInfo::get_npos_targets(validators).all_lt(Weight::from_parts(
- 2u64 * frame_support::weights::constants::WEIGHT_REF_TIME_PER_SECOND,
- u64::MAX,
- )) {
- validators += 1;
- }
-
- println!("Can create a snapshot of {} validators in 2sec block", validators);
- }
-
- #[test]
- fn voters_2sec_block() {
- // we assume a network only wants up to 1000 validators in most cases, thus having 2000
- // candidates is as high as it gets.
- let validators = 2000;
- let mut nominators = 1000;
-
- while <Test as Config>::WeightInfo::get_npos_voters(validators, nominators).all_lt(
- Weight::from_parts(
- 2u64 * frame_support::weights::constants::WEIGHT_REF_TIME_PER_SECOND,
- u64::MAX,
- ),
- ) {
- nominators += 1;
- }
-
- println!(
- "Can create a snapshot of {} nominators [{} validators, each 1 slashing] in 2sec block",
- nominators, validators
- );
- }
-
#[test]
fn set_minimum_active_stake_is_correct() {
ExtBuilder::default()
@@ -5251,14 +5214,15 @@ mod election_data_provider {
.build_and_execute(|| {
// default bounds are unbounded.
assert_ok!(<Staking as ElectionDataProvider>::electing_voters(
- DataProviderBounds::default()
+ DataProviderBounds::default(),
+ 0
));
assert_eq!(MinimumActiveStake::<Test>::get(), 10);
// remove staker with lower bond by limiting the number of voters and check
// `MinimumActiveStake` again after electing voters.
let bounds = ElectionBoundsBuilder::default().voters_count(5.into()).build();
- assert_ok!(<Staking as ElectionDataProvider>::electing_voters(bounds.voters));
+ assert_ok!(<Staking as ElectionDataProvider>::electing_voters(bounds.voters, 0));
assert_eq!(MinimumActiveStake::<Test>::get(), 50);
});
}
@@ -5269,7 +5233,8 @@ mod election_data_provider {
ExtBuilder::default().has_stakers(false).build_and_execute(|| {
// default bounds are unbounded.
assert_ok!(<Staking as ElectionDataProvider>::electing_voters(
- DataProviderBounds::default()
+ DataProviderBounds::default(),
+ 0
));
assert_eq!(<Test as Config>::VoterList::count(), 0);
assert_eq!(MinimumActiveStake::<Test>::get(), 0);
@@ -5285,9 +5250,11 @@ mod election_data_provider {
assert_ok!(Staking::nominate(RuntimeOrigin::signed(4), vec![1]));
assert_eq!(<Test as Config>::VoterList::count(), 5);
- let voters_before =
- <Staking as ElectionDataProvider>::electing_voters(DataProviderBounds::default())
- .unwrap();
+ let voters_before = <Staking as ElectionDataProvider>::electing_voters(
+ DataProviderBounds::default(),
+ 0,
+ )
+ .unwrap();
assert_eq!(MinimumActiveStake::<Test>::get(), 5);
// update minimum nominator bond.
@@ -5297,9 +5264,11 @@ mod election_data_provider {
// lower than `MinNominatorBond`.
assert_eq!(<Test as Config>::VoterList::count(), 5);
- let voters =
- <Staking as ElectionDataProvider>::electing_voters(DataProviderBounds::default())
- .unwrap();
+ let voters = <Staking as ElectionDataProvider>::electing_voters(
+ DataProviderBounds::default(),
+ 0,
+ )
+ .unwrap();
assert_eq!(voters_before, voters);
// minimum active stake is lower than `MinNominatorBond`.
@@ -5317,6 +5286,7 @@ mod election_data_provider {
assert_eq!(Staking::weight_of(&101), 500);
let voters = <Staking as ElectionDataProvider>::electing_voters(
DataProviderBounds::default(),
+ 0,
)
.unwrap();
assert_eq!(voters.len(), 5);
@@ -5332,6 +5302,7 @@ mod election_data_provider {
let voters = <Staking as ElectionDataProvider>::electing_voters(
DataProviderBounds::default(),
+ 0,
)
.unwrap();
// number of returned voters decreases since ledger entry of stash 101 is now
@@ -5353,7 +5324,8 @@ mod election_data_provider {
ExtBuilder::default().nominate(false).build_and_execute(|| {
// default bounds are unbounded.
assert!(<Validators<Test>>::iter().map(|(x, _)| x).all(|v| Staking::electing_voters(
- DataProviderBounds::default()
+ DataProviderBounds::default(),
+ 0
)
.unwrap()
.into_iter()
@@ -5407,12 +5379,15 @@ mod election_data_provider {
// 11 is taken;
// we finish since the 2x limit is reached.
assert_eq!(
- Staking::electing_voters(bounds_builder.voters_count(2.into()).build().voters)
- .unwrap()
- .iter()
- .map(|(stash, _, _)| stash)
- .copied()
- .collect::<Vec<_>>(),
+ Staking::electing_voters(
+ bounds_builder.voters_count(2.into()).build().voters,
+ 0
+ )
+ .unwrap()
+ .iter()
+ .map(|(stash, _, _)| stash)
+ .copied()
+ .collect::<Vec<_>>(),
vec![11],
);
});
@@ -5430,32 +5405,42 @@ mod election_data_provider {
// if voter count limit is less..
assert_eq!(
- Staking::electing_voters(bounds_builder.voters_count(1.into()).build().voters)
- .unwrap()
- .len(),
+ Staking::electing_voters(
+ bounds_builder.voters_count(1.into()).build().voters,
+ 0
+ )
+ .unwrap()
+ .len(),
1
);
// if voter count limit is equal..
assert_eq!(
- Staking::electing_voters(bounds_builder.voters_count(5.into()).build().voters)
- .unwrap()
- .len(),
+ Staking::electing_voters(
+ bounds_builder.voters_count(5.into()).build().voters,
+ 0
+ )
+ .unwrap()
+ .len(),
5
);
// if voter count limit is more.
assert_eq!(
- Staking::electing_voters(bounds_builder.voters_count(55.into()).build().voters)
- .unwrap()
- .len(),
+ Staking::electing_voters(
+ bounds_builder.voters_count(55.into()).build().voters,
+ 0
+ )
+ .unwrap()
+ .len(),
5
);
// if target count limit is more..
assert_eq!(
Staking::electable_targets(
- bounds_builder.targets_count(6.into()).build().targets
+ bounds_builder.targets_count(6.into()).build().targets,
+ 0,
)
.unwrap()
.len(),
@@ -5465,7 +5450,8 @@ mod election_data_provider {
// if target count limit is equal..
assert_eq!(
Staking::electable_targets(
- bounds_builder.targets_count(4.into()).build().targets
+ bounds_builder.targets_count(4.into()).build().targets,
+ 0,
)
.unwrap()
.len(),
@@ -5475,10 +5461,12 @@ mod election_data_provider {
// if target limit count is less, then we return an error.
assert_eq!(
Staking::electable_targets(
- bounds_builder.targets_count(1.into()).build().targets
+ bounds_builder.targets_count(1.into()).build().targets,
+ 0
)
- .unwrap_err(),
- "Target snapshot too big"
+ .unwrap()
+ .len(),
+ 1,
);
});
}
@@ -5488,25 +5476,25 @@ mod election_data_provider {
ExtBuilder::default().build_and_execute(|| {
// voters: set size bounds that allows only for 1 voter.
let bounds = ElectionBoundsBuilder::default().voters_size(26.into()).build();
- let elected = Staking::electing_voters(bounds.voters).unwrap();
+ let elected = Staking::electing_voters(bounds.voters, 0).unwrap();
assert!(elected.encoded_size() == 26 as usize);
let prev_len = elected.len();
// larger size bounds means more quota for voters.
let bounds = ElectionBoundsBuilder::default().voters_size(100.into()).build();
- let elected = Staking::electing_voters(bounds.voters).unwrap();
+ let elected = Staking::electing_voters(bounds.voters, 0).unwrap();
assert!(elected.encoded_size() <= 100 as usize);
assert!(elected.len() > 1 && elected.len() > prev_len);
// targets: set size bounds that allows for only one target to fit in the snapshot.
let bounds = ElectionBoundsBuilder::default().targets_size(10.into()).build();
- let elected = Staking::electable_targets(bounds.targets).unwrap();
+ let elected = Staking::electable_targets(bounds.targets, 0).unwrap();
assert!(elected.encoded_size() == 9 as usize);
let prev_len = elected.len();
// larger size bounds means more space for targets.
let bounds = ElectionBoundsBuilder::default().targets_size(100.into()).build();
- let elected = Staking::electable_targets(bounds.targets).unwrap();
+ let elected = Staking::electable_targets(bounds.targets, 0).unwrap();
assert!(elected.encoded_size() <= 100 as usize);
assert!(elected.len() > 1 && elected.len() > prev_len);
});
@@ -5550,7 +5538,7 @@ mod election_data_provider {
// even through 61 has nomination quota of 2 at the time of the election, all the
// nominations (5) will be used.
assert_eq!(
- Staking::electing_voters(DataProviderBounds::default())
+ Staking::electing_voters(DataProviderBounds::default(), 0)
.unwrap()
.iter()
.map(|(stash, _, targets)| (*stash, targets.len()))
@@ -5574,7 +5562,7 @@ mod election_data_provider {
// nominations of controller 70 won't be added due to voter size limit exceeded.
let bounds = ElectionBoundsBuilder::default().voters_size(100.into()).build();
assert_eq!(
- Staking::electing_voters(bounds.voters)
+ Staking::electing_voters(bounds.voters, 0)
.unwrap()
.iter()
.map(|(stash, _, targets)| (*stash, targets.len()))
@@ -5591,7 +5579,7 @@ mod election_data_provider {
// include the electing voters of 70.
let bounds = ElectionBoundsBuilder::default().voters_size(1_000.into()).build();
assert_eq!(
- Staking::electing_voters(bounds.voters)
+ Staking::electing_voters(bounds.voters, 0)
.unwrap()
.iter()
.map(|(stash, _, targets)| (*stash, targets.len()))
@@ -5602,10 +5590,10 @@ mod election_data_provider {
}
#[test]
- fn estimate_next_election_works() {
+ fn estimate_next_election_single_page_works() {
ExtBuilder::default().session_per_era(5).period(5).build_and_execute(|| {
// first session is always length 0.
- for b in 1..20 {
+ for b in 1..19 {
run_to_block(b);
assert_eq!(Staking::next_election_prediction(System::block_number()), 20);
}
@@ -5613,10 +5601,9 @@ mod election_data_provider {
// election
run_to_block(20);
assert_eq!(Staking::next_election_prediction(System::block_number()), 45);
- assert_eq!(staking_events().len(), 1);
assert_eq!(*staking_events().last().unwrap(), Event::StakersElected);
- for b in 21..45 {
+ for b in 21..44 {
run_to_block(b);
assert_eq!(Staking::next_election_prediction(System::block_number()), 45);
}
@@ -5624,7 +5611,6 @@ mod election_data_provider {
// election
run_to_block(45);
assert_eq!(Staking::next_election_prediction(System::block_number()), 70);
- assert_eq!(staking_events().len(), 3);
assert_eq!(*staking_events().last().unwrap(), Event::StakersElected);
Staking::force_no_eras(RuntimeOrigin::root()).unwrap();
@@ -5647,7 +5633,6 @@ mod election_data_provider {
MinimumValidatorCount::<Test>::put(2);
run_to_block(55);
assert_eq!(Staking::next_election_prediction(System::block_number()), 55 + 25);
- assert_eq!(staking_events().len(), 10);
assert_eq!(
*staking_events().last().unwrap(),
Event::ForceEra { mode: Forcing::NotForcing }
@@ -6160,7 +6145,7 @@ fn change_of_absolute_max_nominations() {
let bounds = DataProviderBounds::default();
// 3 validators and 3 nominators
- assert_eq!(Staking::electing_voters(bounds).unwrap().len(), 3 + 3);
+ assert_eq!(Staking::electing_voters(bounds, 0).unwrap().len(), 3 + 3);
// abrupt change from 16 to 4, everyone should be fine.
AbsoluteMaxNominations::set(4);
@@ -6171,7 +6156,7 @@ fn change_of_absolute_max_nominations() {
.collect::<Vec<_>>(),
vec![(101, 2), (71, 3), (61, 1)]
);
- assert_eq!(Staking::electing_voters(bounds).unwrap().len(), 3 + 3);
+ assert_eq!(Staking::electing_voters(bounds, 0).unwrap().len(), 3 + 3);
// No one can be chilled on account of non-decodable keys.
for k in Nominators::<Test>::iter_keys() {
@@ -6190,7 +6175,7 @@ fn change_of_absolute_max_nominations() {
.collect::<Vec<_>>(),
vec![(101, 2), (71, 3), (61, 1)]
);
- assert_eq!(Staking::electing_voters(bounds).unwrap().len(), 3 + 3);
+ assert_eq!(Staking::electing_voters(bounds, 0).unwrap().len(), 3 + 3);
// As before, no one can be chilled on account of non-decodable keys.
for k in Nominators::<Test>::iter_keys() {
@@ -6224,7 +6209,7 @@ fn change_of_absolute_max_nominations() {
// but its value cannot be decoded and default is returned.
assert!(Nominators::<Test>::get(71).is_none());
- assert_eq!(Staking::electing_voters(bounds).unwrap().len(), 3 + 2);
+ assert_eq!(Staking::electing_voters(bounds, 0).unwrap().len(), 3 + 2);
assert!(Nominators::<Test>::contains_key(101));
// abrupt change from 2 to 1, this should cause some nominators to be non-decodable, and
@@ -6248,7 +6233,7 @@ fn change_of_absolute_max_nominations() {
assert!(Nominators::<Test>::contains_key(61));
assert!(Nominators::<Test>::get(71).is_none());
assert!(Nominators::<Test>::get(61).is_some());
- assert_eq!(Staking::electing_voters(bounds).unwrap().len(), 3 + 1);
+ assert_eq!(Staking::electing_voters(bounds, 0).unwrap().len(), 3 + 1);
// now one of them can revive themselves by re-nominating to a proper value.
assert_ok!(Staking::nominate(RuntimeOrigin::signed(71), vec![1]));
@@ -6291,7 +6276,7 @@ fn nomination_quota_max_changes_decoding() {
vec![(70, 3), (101, 2), (50, 4), (30, 4), (60, 1)]
);
// 4 validators and 4 nominators
- assert_eq!(Staking::electing_voters(unbonded_election).unwrap().len(), 4 + 4);
+ assert_eq!(Staking::electing_voters(unbonded_election, 0).unwrap().len(), 4 + 4);
});
}
@@ -6692,7 +6677,8 @@ fn reducing_max_unlocking_chunks_abrupt() {
#[test]
fn cannot_set_unsupported_validator_count() {
ExtBuilder::default().build_and_execute(|| {
- MaxWinners::set(50);
+ MaxValidatorSet::set(50);
+ MaxWinnersPerPage::set(50);
// set validator count works
assert_ok!(Staking::set_validator_count(RuntimeOrigin::root(), 30));
assert_ok!(Staking::set_validator_count(RuntimeOrigin::root(), 50));
@@ -6707,7 +6693,8 @@ fn cannot_set_unsupported_validator_count() {
#[test]
fn increase_validator_count_errors() {
ExtBuilder::default().build_and_execute(|| {
- MaxWinners::set(50);
+ MaxValidatorSet::set(50);
+ MaxWinnersPerPage::set(50);
assert_ok!(Staking::set_validator_count(RuntimeOrigin::root(), 40));
// increase works
@@ -6725,7 +6712,8 @@ fn increase_validator_count_errors() {
#[test]
fn scale_validator_count_errors() {
ExtBuilder::default().build_and_execute(|| {
- MaxWinners::set(50);
+ MaxValidatorSet::set(50);
+ MaxWinnersPerPage::set(50);
assert_ok!(Staking::set_validator_count(RuntimeOrigin::root(), 20));
// scale value works
@@ -6863,218 +6851,6 @@ fn should_retain_era_info_only_upto_history_depth() {
});
}
-#[test]
-fn test_legacy_claimed_rewards_is_checked_at_reward_payout() {
- ExtBuilder::default().has_stakers(false).build_and_execute(|| {
- // Create a validator:
- bond_validator(11, 1000);
-
- // reward validator for next 2 eras
- mock::start_active_era(1);
- Pallet::<Test>::reward_by_ids(vec![(11, 1)]);
- mock::start_active_era(2);
- Pallet::<Test>::reward_by_ids(vec![(11, 1)]);
- mock::start_active_era(3);
-
- //verify rewards are not claimed
- assert_eq!(
- EraInfo::<Test>::is_rewards_claimed_with_legacy_fallback(
- 1,
- Staking::ledger(11.into()).as_ref().unwrap(),
- &11,
- 0
- ),
- false
- );
- assert_eq!(
- EraInfo::<Test>::is_rewards_claimed_with_legacy_fallback(
- 2,
- Staking::ledger(11.into()).as_ref().unwrap(),
- &11,
- 0
- ),
- false
- );
-
- // assume reward claim for era 1 was stored in legacy storage
- Ledger::<Test>::insert(
- 11,
- StakingLedgerInspect {
- stash: 11,
- total: 1000,
- active: 1000,
- unlocking: Default::default(),
- legacy_claimed_rewards: bounded_vec![1],
- },
- );
-
- // verify rewards for era 1 cannot be claimed
- assert_noop!(
- Staking::payout_stakers_by_page(RuntimeOrigin::signed(1337), 11, 1, 0),
- Error::<Test>::AlreadyClaimed
- .with_weight(<Test as Config>::WeightInfo::payout_stakers_alive_staked(0)),
- );
- assert_eq!(
- EraInfo::<Test>::is_rewards_claimed_with_legacy_fallback(
- 1,
- Staking::ledger(11.into()).as_ref().unwrap(),
- &11,
- 0
- ),
- true
- );
-
- // verify rewards for era 2 can be claimed
- assert_ok!(Staking::payout_stakers_by_page(RuntimeOrigin::signed(1337), 11, 2, 0));
- assert_eq!(
- EraInfo::<Test>::is_rewards_claimed_with_legacy_fallback(
- 2,
- Staking::ledger(11.into()).as_ref().unwrap(),
- &11,
- 0
- ),
- true
- );
- // but the new claimed rewards for era 2 is not stored in legacy storage
- assert_eq!(
- Ledger::<Test>::get(11).unwrap(),
- StakingLedgerInspect {
- stash: 11,
- total: 1000,
- active: 1000,
- unlocking: Default::default(),
- legacy_claimed_rewards: bounded_vec![1],
- },
- );
- // instead it is kept in `ClaimedRewards`
- assert_eq!(ClaimedRewards::<Test>::get(2, 11), vec![0]);
- });
-}
-
-#[test]
-fn test_validator_exposure_is_backward_compatible_with_non_paged_rewards_payout() {
- ExtBuilder::default().has_stakers(false).build_and_execute(|| {
- // case 1: exposure exist in clipped.
- // set page cap to 10
- MaxExposurePageSize::set(10);
- bond_validator(11, 1000);
- let mut expected_individual_exposures: Vec<IndividualExposure<AccountId, Balance>> = vec![];
- let mut total_exposure: Balance = 0;
- // 1st exposure page
- for i in 0..10 {
- let who = 1000 + i;
- let value = 1000 + i as Balance;
- bond_nominator(who, value, vec![11]);
- expected_individual_exposures.push(IndividualExposure { who, value });
- total_exposure += value;
- }
-
- for i in 10..15 {
- let who = 1000 + i;
- let value = 1000 + i as Balance;
- bond_nominator(who, value, vec![11]);
- expected_individual_exposures.push(IndividualExposure { who, value });
- total_exposure += value;
- }
-
- mock::start_active_era(1);
- // reward validator for current era
- Pallet::<Test>::reward_by_ids(vec![(11, 1)]);
-
- // start new era
- mock::start_active_era(2);
- // verify exposure for era 1 is stored in paged storage, that each exposure is stored in
- // one and only one page, and no exposure is repeated.
- let actual_exposure_page_0 = ErasStakersPaged::<Test>::get((1, 11, 0)).unwrap();
- let actual_exposure_page_1 = ErasStakersPaged::<Test>::get((1, 11, 1)).unwrap();
- expected_individual_exposures.iter().for_each(|exposure| {
- assert!(
- actual_exposure_page_0.others.contains(exposure) ||
- actual_exposure_page_1.others.contains(exposure)
- );
- });
- assert_eq!(
- expected_individual_exposures.len(),
- actual_exposure_page_0.others.len() + actual_exposure_page_1.others.len()
- );
- // verify `EraInfo` returns page from paged storage
- assert_eq!(
- EraInfo::<Test>::get_paged_exposure(1, &11, 0).unwrap().others(),
- &actual_exposure_page_0.others
- );
- assert_eq!(
- EraInfo::<Test>::get_paged_exposure(1, &11, 1).unwrap().others(),
- &actual_exposure_page_1.others
- );
- assert_eq!(EraInfo::<Test>::get_page_count(1, &11), 2);
-
- // validator is exposed
- assert!(<Staking as sp_staking::StakingInterface>::is_exposed_in_era(&11, &1));
- // nominators are exposed
- for i in 10..15 {
- let who: AccountId = 1000 + i;
- assert!(<Staking as sp_staking::StakingInterface>::is_exposed_in_era(&who, &1));
- }
-
- // case 2: exposure exist in ErasStakers and ErasStakersClipped (legacy).
- // delete paged storage and add exposure to clipped storage
- <ErasStakersPaged<Test>>::remove((1, 11, 0));
- <ErasStakersPaged<Test>>::remove((1, 11, 1));
- <ErasStakersOverview<Test>>::remove(1, 11);
-
- <ErasStakers<Test>>::insert(
- 1,
- 11,
- Exposure {
- total: total_exposure,
- own: 1000,
- others: expected_individual_exposures.clone(),
- },
- );
- let mut clipped_exposure = expected_individual_exposures.clone();
- clipped_exposure.sort_by(|a, b| b.who.cmp(&a.who));
- clipped_exposure.truncate(10);
- <ErasStakersClipped<Test>>::insert(
- 1,
- 11,
- Exposure { total: total_exposure, own: 1000, others: clipped_exposure.clone() },
- );
-
- // verify `EraInfo` returns exposure from clipped storage
- let actual_exposure_paged = EraInfo::<Test>::get_paged_exposure(1, &11, 0).unwrap();
- assert_eq!(actual_exposure_paged.others(), &clipped_exposure);
- assert_eq!(actual_exposure_paged.own(), 1000);
- assert_eq!(actual_exposure_paged.exposure_metadata.page_count, 1);
-
- let actual_exposure_full = EraInfo::<Test>::get_full_exposure(1, &11);
- assert_eq!(actual_exposure_full.others, expected_individual_exposures);
- assert_eq!(actual_exposure_full.own, 1000);
- assert_eq!(actual_exposure_full.total, total_exposure);
-
- // validator is exposed
- assert!(<Staking as sp_staking::StakingInterface>::is_exposed_in_era(&11, &1));
- // nominators are exposed
- for i in 10..15 {
- let who: AccountId = 1000 + i;
- assert!(<Staking as sp_staking::StakingInterface>::is_exposed_in_era(&who, &1));
- }
-
- // for pages other than 0, clipped storage returns empty exposure
- assert_eq!(EraInfo::<Test>::get_paged_exposure(1, &11, 1), None);
- // page size is 1 for clipped storage
- assert_eq!(EraInfo::<Test>::get_page_count(1, &11), 1);
-
- // payout for page 0 works
- assert_ok!(Staking::payout_stakers_by_page(RuntimeOrigin::signed(1337), 11, 0, 0));
- // payout for page 1 fails
- assert_noop!(
- Staking::payout_stakers_by_page(RuntimeOrigin::signed(1337), 11, 0, 1),
- Error::<Test>::InvalidPage
- .with_weight(<Test as Config>::WeightInfo::payout_stakers_alive_staked(0))
- );
- });
-}
-
#[test]
fn test_runtime_api_pending_rewards() {
ExtBuilder::default().build_and_execute(|| {
@@ -7115,70 +6891,36 @@ fn test_runtime_api_pending_rewards() {
others: individual_exposures,
};
- // add non-paged exposure for one and two.
- <ErasStakers<Test>>::insert(0, validator_one, exposure.clone());
- <ErasStakers<Test>>::insert(0, validator_two, exposure.clone());
- // add paged exposure for third validator
- EraInfo::<Test>::set_exposure(0, &validator_three, exposure);
+ // add exposure for validators
+ EraInfo::<Test>::upsert_exposure(0, &validator_one, exposure.clone());
+ EraInfo::<Test>::upsert_exposure(0, &validator_two, exposure.clone());
// add some reward to be distributed
ErasValidatorReward::<Test>::insert(0, 1000);
- // mark rewards claimed for validator_one in legacy claimed rewards
- <Ledger<Test>>::insert(
- validator_one,
- StakingLedgerInspect {
- stash: validator_one,
- total: stake,
- active: stake,
- unlocking: Default::default(),
- legacy_claimed_rewards: bounded_vec![0],
- },
- );
-
- // SCENARIO ONE: rewards already marked claimed in legacy storage.
- // runtime api should return false for pending rewards for validator_one.
+ // SCENARIO: Validator with paged exposure (two pages).
+ // validators have not claimed rewards, so pending rewards is true.
+ assert!(EraInfo::<Test>::pending_rewards(0, &validator_one));
+ assert!(EraInfo::<Test>::pending_rewards(0, &validator_two));
+ // and payout works
+ assert_ok!(Staking::payout_stakers(RuntimeOrigin::signed(1337), validator_one, 0));
+ assert_ok!(Staking::payout_stakers(RuntimeOrigin::signed(1337), validator_two, 0));
+ // validators have two pages of exposure, so pending rewards is still true.
+ assert!(EraInfo::<Test>::pending_rewards(0, &validator_one));
+ assert!(EraInfo::<Test>::pending_rewards(0, &validator_two));
+ // payout again only for validator one
+ assert_ok!(Staking::payout_stakers(RuntimeOrigin::signed(1337), validator_one, 0));
+ // now pending rewards is false for validator one
assert!(!EraInfo::<Test>::pending_rewards(0, &validator_one));
- // and if we try to pay, we get an error.
+ // and payout fails for validator one
assert_noop!(
Staking::payout_stakers(RuntimeOrigin::signed(1337), validator_one, 0),
Error::<Test>::AlreadyClaimed.with_weight(err_weight)
);
-
- // SCENARIO TWO: non-paged exposure
- // validator two has not claimed rewards, so pending rewards is true.
+ // while pending reward is true for validator two
assert!(EraInfo::<Test>::pending_rewards(0, &validator_two));
- // and payout works
+ // and payout works again for validator two.
assert_ok!(Staking::payout_stakers(RuntimeOrigin::signed(1337), validator_two, 0));
- // now pending rewards is false.
- assert!(!EraInfo::<Test>::pending_rewards(0, &validator_two));
- // and payout fails
- assert_noop!(
- Staking::payout_stakers(RuntimeOrigin::signed(1337), validator_two, 0),
- Error::<Test>::AlreadyClaimed.with_weight(err_weight)
- );
-
- // SCENARIO THREE: validator with paged exposure (two pages).
- // validator three has not claimed rewards, so pending rewards is true.
- assert!(EraInfo::<Test>::pending_rewards(0, &validator_three));
- // and payout works
- assert_ok!(Staking::payout_stakers(RuntimeOrigin::signed(1337), validator_three, 0));
- // validator three has two pages of exposure, so pending rewards is still true.
- assert!(EraInfo::<Test>::pending_rewards(0, &validator_three));
- // payout again
- assert_ok!(Staking::payout_stakers(RuntimeOrigin::signed(1337), validator_three, 0));
- // now pending rewards is false.
- assert!(!EraInfo::<Test>::pending_rewards(0, &validator_three));
- // and payout fails
- assert_noop!(
- Staking::payout_stakers(RuntimeOrigin::signed(1337), validator_three, 0),
- Error::<Test>::AlreadyClaimed.with_weight(err_weight)
- );
-
- // for eras with no exposure, pending rewards is false.
- assert!(!EraInfo::<Test>::pending_rewards(0, &validator_one));
- assert!(!EraInfo::<Test>::pending_rewards(0, &validator_two));
- assert!(!EraInfo::<Test>::pending_rewards(0, &validator_three));
});
}
@@ -7632,6 +7374,7 @@ mod staking_unchecked {
})
}
}
+
mod ledger {
use super::*;
@@ -8805,6 +8548,7 @@ fn reenable_lower_offenders_mock() {
assert_eq!(
staking_events_since_last_call(),
vec![
+ Event::PagedElectionProceeded { page: 0, result: Ok(7) },
Event::StakersElected,
Event::EraPaid { era_index: 0, validator_payout: 11075, remainder: 33225 },
Event::SlashReported {
@@ -8881,6 +8625,7 @@ fn do_not_reenable_higher_offenders_mock() {
assert_eq!(
staking_events_since_last_call(),
vec![
+ Event::PagedElectionProceeded { page: 0, result: Ok(7) },
Event::StakersElected,
Event::EraPaid { era_index: 0, validator_payout: 11075, remainder: 33225 },
Event::SlashReported {
@@ -8946,12 +8691,12 @@ mod getters {
slashing,
tests::{Staking, Test},
ActiveEra, ActiveEraInfo, BalanceOf, CanceledSlashPayout, ClaimedRewards, CurrentEra,
- CurrentPlannedSession, EraRewardPoints, ErasRewardPoints, ErasStakersClipped,
- ErasStartSessionIndex, ErasTotalStake, ErasValidatorPrefs, ErasValidatorReward, ForceEra,
- Forcing, Nominations, Nominators, Perbill, SlashRewardFraction, SlashingSpans,
- ValidatorPrefs, Validators,
+ CurrentPlannedSession, EraRewardPoints, ErasRewardPoints, ErasStartSessionIndex,
+ ErasTotalStake, ErasValidatorPrefs, ErasValidatorReward, ForceEra, Forcing, Nominations,
+ Nominators, Perbill, SlashRewardFraction, SlashingSpans, ValidatorPrefs, Validators,
};
- use sp_staking::{EraIndex, Exposure, IndividualExposure, Page, SessionIndex};
+ use frame_support::BoundedVec;
+ use sp_staking::{EraIndex, Page, SessionIndex};
#[test]
fn get_validator_count_returns_value_from_storage() {
@@ -8988,7 +8733,9 @@ mod getters {
sp_io::TestExternalities::default().execute_with(|| {
// given
let v: Vec<mock::AccountId> = vec![1, 2, 3];
- Invulnerables::<Test>::put(v.clone());
+ Invulnerables::<Test>::put(
+ BoundedVec::try_from(v.clone()).expect("Too many invulnerable validators!"),
+ );
// when
let result = Staking::invulnerables();
@@ -9087,27 +8834,6 @@ mod getters {
});
}
- #[test]
- fn get_eras_stakers_clipped_returns_value_from_storage() {
- sp_io::TestExternalities::default().execute_with(|| {
- // given
- let era: EraIndex = 12;
- let account_id: mock::AccountId = 1;
- let exposure: Exposure<mock::AccountId, BalanceOf<Test>> = Exposure {
- total: 1125,
- own: 1000,
- others: vec![IndividualExposure { who: 101, value: 125 }],
- };
- ErasStakersClipped::<Test>::insert(era, account_id, exposure.clone());
-
- // when
- let result = Staking::eras_stakers_clipped(era, &account_id);
-
- // then
- assert_eq!(result, exposure);
- });
- }
-
#[test]
fn get_claimed_rewards_returns_value_from_storage() {
sp_io::TestExternalities::default().execute_with(|| {
diff --git a/substrate/frame/staking/src/tests_paged_election.rs b/substrate/frame/staking/src/tests_paged_election.rs
new file mode 100644
index 00000000000..76be6819d11
--- /dev/null
+++ b/substrate/frame/staking/src/tests_paged_election.rs
@@ -0,0 +1,971 @@
+// This file is part of Substrate.
+
+// Copyright (C) 2022 Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use crate::{mock::*, *};
+use frame_support::{assert_ok, testing_prelude::*};
+use substrate_test_utils::assert_eq_uvec;
+
+use frame_election_provider_support::{
+ bounds::ElectionBoundsBuilder, ElectionDataProvider, SortedListProvider, Support,
+};
+use sp_staking::StakingInterface;
+
+mod electable_stashes {
+ use super::*;
+
+ #[test]
+ fn add_electable_stashes_work() {
+ ExtBuilder::default().try_state(false).build_and_execute(|| {
+ MaxValidatorSet::set(5);
+ assert_eq!(MaxValidatorSet::get(), 5);
+ assert!(ElectableStashes::<Test>::get().is_empty());
+
+ // adds stashes without duplicates, do not overflow bounds.
+ assert_ok!(Staking::add_electables(vec![1u64, 2, 3].into_iter()));
+ assert_eq!(
+ ElectableStashes::<Test>::get().into_inner().into_iter().collect::<Vec<_>>(),
+ vec![1, 2, 3]
+ );
+
+ // adds with duplicates which are deduplicated implicitly, no not overflow bounds.
+ assert_ok!(Staking::add_electables(vec![1u64, 2, 4].into_iter()));
+ assert_eq!(
+ ElectableStashes::<Test>::get().into_inner().into_iter().collect::<Vec<_>>(),
+ vec![1, 2, 3, 4]
+ );
+ })
+ }
+
+ #[test]
+ fn add_electable_stashes_overflow_works() {
+ ExtBuilder::default().try_state(false).build_and_execute(|| {
+ MaxValidatorSet::set(5);
+ assert_eq!(MaxValidatorSet::get(), 5);
+ assert!(ElectableStashes::<Test>::get().is_empty());
+
+ // adds stashes so that bounds are overflown, fails and internal state changes so that
+ // all slots are filled. error will return the idx of the first account that was not
+ // included.
+ let expected_idx_not_included = 5; // stash 6.
+ assert_eq!(
+ Staking::add_electables(vec![1u64, 2, 3, 4, 5, 6, 7, 8].into_iter()),
+ Err(expected_idx_not_included)
+ );
+ // the included were added to the electable stashes, despite the error.
+ assert_eq!(
+ ElectableStashes::<Test>::get().into_inner().into_iter().collect::<Vec<_>>(),
+ vec![1, 2, 3, 4, 5]
+ );
+ })
+ }
+
+ #[test]
+ fn overflow_electable_stashes_no_exposures_work() {
+ // ensures exposures are stored only for the electable stashes that fit within the
+ // electable stashes bounds in case of overflow.
+ ExtBuilder::default().try_state(false).build_and_execute(|| {
+ MaxValidatorSet::set(2);
+ assert_eq!(MaxValidatorSet::get(), 2);
+ assert!(ElectableStashes::<Test>::get().is_empty());
+
+ // current era is 0, preparing 1.
+ assert_eq!(current_era(), 0);
+
+ let supports = to_bounded_supports(vec![
+ (1, Support { total: 100, voters: vec![(10, 1_000)] }),
+ (2, Support { total: 200, voters: vec![(20, 2_000)] }),
+ (3, Support { total: 300, voters: vec![(30, 3_000)] }),
+ (4, Support { total: 400, voters: vec![(40, 4_000)] }),
+ ]);
+
+ // error due to bounds.
+ let expected_not_included = 2;
+ assert_eq!(Staking::do_elect_paged_inner(supports), Err(expected_not_included));
+
+ // electable stashes have been collected to the max bounds despite the error.
+ assert_eq!(ElectableStashes::<Test>::get().into_iter().collect::<Vec<_>>(), vec![1, 2]);
+
+ let exposure_exists =
+ |acc, era| EraInfo::<Test>::get_full_exposure(era, &acc).total != 0;
+
+ // exposures were only collected for electable stashes in bounds (1 and 2).
+ assert!(exposure_exists(1, 1));
+ assert!(exposure_exists(2, 1));
+ assert!(!exposure_exists(3, 1));
+ assert!(!exposure_exists(4, 1));
+ })
+ }
+}
+
+mod paged_on_initialize {
+ use super::*;
+ use frame_election_provider_support::onchain;
+
+ #[test]
+ fn single_page_election_works() {
+ ExtBuilder::default()
+ // set desired targets to 3.
+ .validator_count(3)
+ .build_and_execute(|| {
+ let next_election = Staking::next_election_prediction(System::block_number());
+ assert_eq!(next_election, 10);
+
+ // single page.
+ let pages: BlockNumber = Staking::election_pages().into();
+ assert_eq!(pages, 1);
+
+ // genesis validators are now in place.
+ assert_eq!(current_era(), 0);
+ assert_eq_uvec!(Session::validators(), vec![11, 21, 31]);
+
+ // force unstake of 31 to ensure the election results of the next era are
+ // different than genesis.
+ assert_ok!(Staking::force_unstake(RuntimeOrigin::root(), 31, 0));
+
+ let expected_elected = Validators::<Test>::iter_keys()
+ .filter(|x| Staking::status(x) == Ok(StakerStatus::Validator))
+ .collect::<Vec<AccountId>>();
+ // use all registered validators as potential targets.
+ ValidatorCount::<Test>::set(expected_elected.len() as u32);
+ assert_eq!(expected_elected.len(), 2);
+
+ // 1. election prep hasn't started yet, election cursor and electable stashes are
+ // not set yet.
+ run_to_block(8);
+ assert_eq!(NextElectionPage::<Test>::get(), None);
+ assert!(ElectableStashes::<Test>::get().is_empty());
+ assert_eq!(VoterSnapshotStatus::<Test>::get(), SnapshotStatus::Waiting);
+
+ // try-state sanity check.
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ // 2. starts preparing election at the (election_prediction - n_pages) block.
+ run_to_block(9);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ // electing started, but since single-page, we don't set `NextElectionPage` at all.
+ assert_eq!(NextElectionPage::<Test>::get(), None);
+ // now the electable stashes have been fetched and stored.
+ assert_eq_uvec!(
+ ElectableStashes::<Test>::get().into_iter().collect::<Vec<_>>(),
+ expected_elected
+ );
+ assert_eq!(VoterSnapshotStatus::<Test>::get(), SnapshotStatus::Waiting);
+
+ // era is still 0.
+ assert_eq!(current_era(), 0);
+
+ // 3. progress to election block, which matches with era rotation.
+ run_to_block(10);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+ assert_eq!(current_era(), 1);
+ // clears out election metadata for era.
+ assert!(NextElectionPage::<Test>::get().is_none());
+ assert!(ElectableStashes::<Test>::get().into_iter().collect::<Vec<_>>().is_empty());
+ assert_eq!(VoterSnapshotStatus::<Test>::get(), SnapshotStatus::Waiting);
+
+ // era progressed and electable stashes have been served to session pallet.
+ assert_eq_uvec!(Session::validators(), vec![11, 21, 31]);
+
+ // 4. in the next era, the validator set does not include 31 anymore which was
+ // unstaked.
+ start_active_era(2);
+ assert_eq_uvec!(Session::validators(), vec![11, 21]);
+ })
+ }
+
+ #[test]
+ fn single_page_election_era_transition_exposures_work() {
+ ExtBuilder::default()
+ // set desired targets to 3.
+ .validator_count(3)
+ .build_and_execute(|| {
+ assert_eq!(current_era(), 0);
+
+ // 3 sessions per era.
+ assert_eq!(SessionsPerEra::get(), 3);
+
+ // genesis validators and exposures.
+ assert_eq!(current_era(), 0);
+ assert_eq_uvec!(validator_controllers(), vec![11, 21, 31]);
+ assert_eq!(
+ era_exposures(current_era()),
+ vec![
+ (
+ 11,
+ Exposure {
+ total: 1125,
+ own: 1000,
+ others: vec![IndividualExposure { who: 101, value: 125 }]
+ }
+ ),
+ (
+ 21,
+ Exposure {
+ total: 1375,
+ own: 1000,
+ others: vec![IndividualExposure { who: 101, value: 375 }]
+ }
+ ),
+ (31, Exposure { total: 500, own: 500, others: vec![] })
+ ]
+ );
+
+ // try-state sanity check.
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ start_session(1);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+ assert_eq!(current_era(), 0);
+ // election haven't started yet.
+ assert_eq!(NextElectionPage::<Test>::get(), None);
+ assert!(ElectableStashes::<Test>::get().is_empty());
+
+ // progress to era rotation session.
+ start_session(SessionsPerEra::get());
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+ assert_eq!(current_era(), 1);
+ assert_eq_uvec!(Session::validators(), vec![11, 21, 31]);
+ assert_eq!(
+ era_exposures(current_era()),
+ vec![
+ (
+ 11,
+ Exposure {
+ total: 1125,
+ own: 1000,
+ others: vec![IndividualExposure { who: 101, value: 125 }]
+ }
+ ),
+ (
+ 21,
+ Exposure {
+ total: 1375,
+ own: 1000,
+ others: vec![IndividualExposure { who: 101, value: 375 }]
+ }
+ ),
+ (31, Exposure { total: 500, own: 500, others: vec![] })
+ ]
+ );
+
+ // force unstake validator 31 for next era.
+ assert_ok!(Staking::force_unstake(RuntimeOrigin::root(), 31, 0));
+
+ // progress session and rotate era.
+ start_session(SessionsPerEra::get() * 2);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+ assert_eq!(current_era(), 2);
+ assert_eq_uvec!(Session::validators(), vec![11, 21]);
+
+ assert_eq!(
+ era_exposures(current_era()),
+ vec![
+ (
+ 11,
+ Exposure {
+ total: 1125,
+ own: 1000,
+ others: vec![IndividualExposure { who: 101, value: 125 }]
+ }
+ ),
+ (
+ 21,
+ Exposure {
+ total: 1375,
+ own: 1000,
+ others: vec![IndividualExposure { who: 101, value: 375 }]
+ }
+ ),
+ ]
+ );
+
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+ })
+ }
+
+ #[test]
+ fn multi_page_election_works() {
+ ExtBuilder::default()
+ .add_staker(61, 61, 1000, StakerStatus::Validator)
+ .add_staker(71, 71, 1000, StakerStatus::Validator)
+ .add_staker(81, 81, 1000, StakerStatus::Validator)
+ .add_staker(91, 91, 1000, StakerStatus::Validator)
+ .multi_page_election_provider(3)
+ .max_winners_per_page(5)
+ .build_and_execute(|| {
+ // we need this later.
+ let genesis_validators = Session::validators();
+
+ // election provider has 3 pages.
+ let pages: BlockNumber =
+ <<Test as Config>::ElectionProvider as ElectionProvider>::Pages::get().into();
+ assert_eq!(pages, 3);
+
+ // 5 max winners per page.
+ let max_winners_page = <<Test as Config>::ElectionProvider as ElectionProvider>::MaxWinnersPerPage::get();
+ assert_eq!(max_winners_page, 5);
+
+ // genesis era.
+ assert_eq!(current_era(), 0);
+
+ // confirm the genesis validators.
+ assert_eq!(Session::validators(), vec![11, 21]);
+
+ let next_election = <Staking as ElectionDataProvider>::next_election_prediction(
+ System::block_number(),
+ );
+ assert_eq!(next_election, 10);
+
+ let expected_elected = Validators::<Test>::iter_keys()
+ .filter(|x| Staking::status(x) == Ok(StakerStatus::Validator))
+ // mock multi page election provider takes first `max_winners_page`
+ // validators as winners.
+ .take(max_winners_page as usize)
+ .collect::<Vec<AccountId>>();
+ // adjust desired targets to number of winners per page.
+ ValidatorCount::<Test>::set(expected_elected.len() as u32);
+ assert_eq!(expected_elected.len(), 5);
+
+ // try-state sanity check.
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ // 1. election prep hasn't started yet, election cursor and electable stashes are
+ // not set yet.
+ run_to_block(6);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+ assert_eq!(NextElectionPage::<Test>::get(), None);
+ assert!(ElectableStashes::<Test>::get().is_empty());
+
+ // 2. starts preparing election at the (election_prediction - n_pages) block.
+ // fetches msp (i.e. 2).
+ run_to_block(7);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ // electing started at cursor is set once the election starts to be prepared.
+ assert_eq!(NextElectionPage::<Test>::get(), Some(1));
+ // now the electable stashes started to be fetched and stored.
+ assert_eq_uvec!(
+ ElectableStashes::<Test>::get().into_iter().collect::<Vec<_>>(),
+ expected_elected
+ );
+ // exposures have been collected for all validators in the page.
+ // note that the mock election provider adds one exposures per winner for
+ // each page.
+ for s in expected_elected.iter() {
+ // 1 page fetched, 1 `other` exposure collected per electable stash.
+ assert_eq!(Staking::eras_stakers(current_era() + 1, s).others.len(), 1);
+ }
+
+ // 3. progress one block to fetch page 1.
+ run_to_block(8);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+ // the electable stashes remain the same.
+ assert_eq_uvec!(
+ ElectableStashes::<Test>::get().into_iter().collect::<Vec<_>>(),
+ expected_elected
+ );
+ // election cursor moves along.
+ assert_eq!(NextElectionPage::<Test>::get(), Some(0));
+ // exposures have been collected for all validators in the page.
+ for s in expected_elected.iter() {
+ // 2 pages fetched, 2 `other` exposures collected per electable stash.
+ assert_eq!(Staking::eras_stakers(current_era() + 1, s).others.len(), 2);
+ }
+
+ // 4. progress one block to fetch lsp (i.e. 0).
+ run_to_block(9);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+ // the electable stashes remain the same.
+ assert_eq_uvec!(
+ ElectableStashes::<Test>::get().into_iter().collect::<Vec<_>>(),
+ expected_elected
+ );
+ // exposures have been collected for all validators in the page.
+ for s in expected_elected.iter() {
+ // 3 pages fetched, 3 `other` exposures collected per electable stash.
+ assert_eq!(Staking::eras_stakers(current_era() + 1, s).others.len(), 3);
+ }
+ assert_eq!(NextElectionPage::<Test>::get(), None);
+ assert_eq!(staking_events_since_last_call(), vec![
+ Event::PagedElectionProceeded { page: 2, result: Ok(5) },
+ Event::PagedElectionProceeded { page: 1, result: Ok(0) },
+ Event::PagedElectionProceeded { page: 0, result: Ok(0) }
+ ]);
+
+ // upon fetching page 0, the electing started will remain in storage until the
+ // era rotates.
+ assert_eq!(current_era(), 0);
+
+ // Next block the era will rotate.
+ run_to_block(10);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+ // and all the metadata has been cleared up and ready for the next election.
+ assert!(NextElectionPage::<Test>::get().is_none());
+ assert!(ElectableStashes::<Test>::get().is_empty());
+ // events
+ assert_eq!(staking_events_since_last_call(), vec![
+ Event::StakersElected
+ ]);
+ // session validators are not updated yet, these are genesis validators
+ assert_eq_uvec!(Session::validators(), genesis_validators);
+
+ // next session they are updated.
+ advance_session();
+ // the new era validators are the expected elected stashes.
+ assert_eq_uvec!(Session::validators(), expected_elected);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ })
+ }
+
+ #[test]
+ fn multi_page_election_with_mulit_page_exposures_rewards_work() {
+ ExtBuilder::default()
+ .add_staker(61, 61, 1000, StakerStatus::Validator)
+ .add_staker(71, 71, 1000, StakerStatus::Validator)
+ .add_staker(1, 1, 5, StakerStatus::Nominator(vec![21, 31, 71]))
+ .add_staker(2, 2, 5, StakerStatus::Nominator(vec![21, 31, 71]))
+ .add_staker(3, 3, 5, StakerStatus::Nominator(vec![21, 31, 71]))
+ .multi_page_election_provider(3)
+ .max_winners_per_page(3)
+ .exposures_page_size(2)
+ .build_and_execute(|| {
+ // election provider has 3 pages.
+ let pages: BlockNumber =
+ <<Test as Config>::ElectionProvider as ElectionProvider>::Pages::get().into();
+ assert_eq!(pages, 3);
+ // 3 max winners per page.
+ let max_winners_page = <<Test as Config>::ElectionProvider as ElectionProvider>::MaxWinnersPerPage::get();
+ assert_eq!(max_winners_page, 3);
+
+ // setup validator payee prefs and 10% commission.
+ for s in vec![21, 31, 71] {
+ Payee::<Test>::insert(s, RewardDestination::Account(s));
+ let prefs = ValidatorPrefs { commission: Perbill::from_percent(10), ..Default::default() };
+ Validators::<Test>::insert(s, prefs.clone());
+ }
+
+ let init_balance_all = vec![21, 31, 71, 1, 2, 3].iter().fold(0, |mut acc, s| {
+ acc += asset::total_balance::<Test>(&s);
+ acc
+ });
+
+ // progress era.
+ assert_eq!(current_era(), 0);
+ start_active_era(1);
+ assert_eq!(current_era(), 1);
+ assert_eq!(Session::validators(), vec![21, 31, 71]);
+
+ // distribute reward,
+ Pallet::<Test>::reward_by_ids(vec![(21, 50)]);
+ Pallet::<Test>::reward_by_ids(vec![(31, 50)]);
+ Pallet::<Test>::reward_by_ids(vec![(71, 50)]);
+
+ let total_payout = current_total_payout_for_duration(reward_time_per_era());
+
+ start_active_era(2);
+
+ // all the validators exposed in era 1 have two pages of exposures, since exposure
+ // page size is 2.
+ assert_eq!(MaxExposurePageSize::get(), 2);
+ assert_eq!(EraInfo::<Test>::get_page_count(1, &21), 2);
+ assert_eq!(EraInfo::<Test>::get_page_count(1, &31), 2);
+ assert_eq!(EraInfo::<Test>::get_page_count(1, &71), 2);
+
+ make_all_reward_payment(1);
+
+ let balance_all = vec![21, 31, 71, 1, 2, 3].iter().fold(0, |mut acc, s| {
+ acc += asset::total_balance::<Test>(&s);
+ acc
+ });
+
+ assert_eq_error_rate!(
+ total_payout,
+ balance_all - init_balance_all,
+ 4
+ );
+ })
+ }
+
+ #[test]
+ fn multi_page_election_is_graceful() {
+ // demonstrate that in a multi-page election, in some of the `elect(_)` calls fail we won't
+ // bail right away.
+ ExtBuilder::default().multi_page_election_provider(3).build_and_execute(|| {
+ // load some exact data into the election provider, some of which are error or empty.
+ let correct_results = <Test as Config>::GenesisElectionProvider::elect(0);
+ CustomElectionSupports::set(Some(vec![
+ // page 0.
+ correct_results.clone(),
+ // page 1.
+ Err(onchain::Error::FailedToBound),
+ // page 2.
+ Ok(Default::default()),
+ ]));
+
+ // genesis era.
+ assert_eq!(current_era(), 0);
+
+ let next_election =
+ <Staking as ElectionDataProvider>::next_election_prediction(System::block_number());
+ assert_eq!(next_election, 10);
+
+ // try-state sanity check.
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ // 1. election prep hasn't started yet, election cursor and electable stashes are
+ // not set yet.
+ run_to_block(6);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+ assert_eq!(NextElectionPage::<Test>::get(), None);
+ assert!(ElectableStashes::<Test>::get().is_empty());
+
+ // 2. starts preparing election at the (election_prediction - n_pages) block.
+ // fetches lsp (i.e. 2).
+ run_to_block(7);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ // electing started at cursor is set once the election starts to be prepared.
+ assert_eq!(NextElectionPage::<Test>::get(), Some(1));
+ // in elect(2) we won't collect any stashes yet.
+ assert!(ElectableStashes::<Test>::get().is_empty());
+
+ // 3. progress one block to fetch page 1.
+ run_to_block(8);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ // in elect(1) we won't collect any stashes yet.
+ assert!(ElectableStashes::<Test>::get().is_empty());
+ // election cursor is updated
+ assert_eq!(NextElectionPage::<Test>::get(), Some(0));
+
+ // 4. progress one block to fetch mps (i.e. 0).
+ run_to_block(9);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ // some stashes come in.
+ assert_eq!(
+ ElectableStashes::<Test>::get().into_iter().collect::<Vec<_>>(),
+ vec![11 as AccountId, 21]
+ );
+ // cursor is now none
+ assert_eq!(NextElectionPage::<Test>::get(), None);
+
+ // events thus far
+ assert_eq!(
+ staking_events_since_last_call(),
+ vec![
+ Event::PagedElectionProceeded { page: 2, result: Ok(0) },
+ Event::PagedElectionProceeded { page: 1, result: Err(0) },
+ Event::PagedElectionProceeded { page: 0, result: Ok(2) }
+ ]
+ );
+
+ // upon fetching page 0, the electing started will remain in storage until the
+ // era rotates.
+ assert_eq!(current_era(), 0);
+
+ // Next block the era will rotate.
+ run_to_block(10);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ // and all the metadata has been cleared up and ready for the next election.
+ assert!(NextElectionPage::<Test>::get().is_none());
+ assert!(ElectableStashes::<Test>::get().is_empty());
+
+ // and the overall staking worked fine.
+ assert_eq!(staking_events_since_last_call(), vec![Event::StakersElected]);
+ })
+ }
+
+ #[test]
+ fn multi_page_election_fails_if_not_enough_validators() {
+ // a graceful multi-page election still fails if not enough validators are provided.
+ ExtBuilder::default()
+ .multi_page_election_provider(3)
+ .minimum_validator_count(3)
+ .build_and_execute(|| {
+ // load some exact data into the election provider, some of which are error or
+ // empty.
+ let correct_results = <Test as Config>::GenesisElectionProvider::elect(0);
+ CustomElectionSupports::set(Some(vec![
+ // page 0.
+ correct_results.clone(),
+ // page 1.
+ Err(onchain::Error::FailedToBound),
+ // page 2.
+ Ok(Default::default()),
+ ]));
+
+ // genesis era.
+ assert_eq!(current_era(), 0);
+
+ let next_election = <Staking as ElectionDataProvider>::next_election_prediction(
+ System::block_number(),
+ );
+ assert_eq!(next_election, 10);
+
+ // try-state sanity check.
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ // 1. election prep hasn't started yet, election cursor and electable stashes are
+ // not set yet.
+ run_to_block(6);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+ assert_eq!(NextElectionPage::<Test>::get(), None);
+ assert!(ElectableStashes::<Test>::get().is_empty());
+
+ // 2. starts preparing election at the (election_prediction - n_pages) block.
+ // fetches lsp (i.e. 2).
+ run_to_block(7);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ // electing started at cursor is set once the election starts to be prepared.
+ assert_eq!(NextElectionPage::<Test>::get(), Some(1));
+ // in elect(2) we won't collect any stashes yet.
+ assert!(ElectableStashes::<Test>::get().is_empty());
+
+ // 3. progress one block to fetch page 1.
+ run_to_block(8);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ // in elect(1) we won't collect any stashes yet.
+ assert!(ElectableStashes::<Test>::get().is_empty());
+ // election cursor is updated
+ assert_eq!(NextElectionPage::<Test>::get(), Some(0));
+
+ // 4. progress one block to fetch mps (i.e. 0).
+ run_to_block(9);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ // some stashes come in.
+ assert_eq!(
+ ElectableStashes::<Test>::get().into_iter().collect::<Vec<_>>(),
+ vec![11 as AccountId, 21]
+ );
+ // cursor is now none
+ assert_eq!(NextElectionPage::<Test>::get(), None);
+
+ // events thus far
+ assert_eq!(
+ staking_events_since_last_call(),
+ vec![
+ Event::PagedElectionProceeded { page: 2, result: Ok(0) },
+ Event::PagedElectionProceeded { page: 1, result: Err(0) },
+ Event::PagedElectionProceeded { page: 0, result: Ok(2) }
+ ]
+ );
+
+ // upon fetching page 0, the electing started will remain in storage until the
+ // era rotates.
+ assert_eq!(current_era(), 0);
+
+ // Next block the era will rotate.
+ run_to_block(10);
+ assert_ok!(Staking::ensure_snapshot_metadata_state(System::block_number()));
+
+ // and all the metadata has been cleared up and ready for the next election.
+ assert!(NextElectionPage::<Test>::get().is_none());
+ assert!(ElectableStashes::<Test>::get().is_empty());
+
+ // and the overall staking worked fine.
+ assert_eq!(staking_events_since_last_call(), vec![Event::StakingElectionFailed]);
+ })
+ }
+}
+
+mod paged_snapshot {
+ use super::*;
+
+ #[test]
+ fn target_snapshot_works() {
+ ExtBuilder::default()
+ .nominate(true)
+ .set_status(41, StakerStatus::Validator)
+ .set_status(51, StakerStatus::Validator)
+ .set_status(101, StakerStatus::Idle)
+ .build_and_execute(|| {
+ // all registered validators.
+ let all_targets = vec![51, 31, 41, 21, 11];
+ assert_eq_uvec!(
+ <Test as Config>::TargetList::iter().collect::<Vec<_>>(),
+ all_targets,
+ );
+
+ // 3 targets per page.
+ let bounds =
+ ElectionBoundsBuilder::default().targets_count(3.into()).build().targets;
+
+ let targets =
+ <Staking as ElectionDataProvider>::electable_targets(bounds, 0).unwrap();
+ assert_eq_uvec!(targets, all_targets.iter().take(3).cloned().collect::<Vec<_>>());
+
+ // emulates a no bounds target snapshot request.
+ let bounds =
+ ElectionBoundsBuilder::default().targets_count(u32::MAX.into()).build().targets;
+
+ let single_page_targets =
+ <Staking as ElectionDataProvider>::electable_targets(bounds, 0).unwrap();
+
+ // complete set of paged targets is the same as single page, no bounds set of
+ // targets.
+ assert_eq_uvec!(all_targets, single_page_targets);
+ })
+ }
+
+ #[test]
+ fn target_snaposhot_multi_page_redundant() {
+ ExtBuilder::default().build_and_execute(|| {
+ let all_targets = vec![31, 21, 11];
+ assert_eq_uvec!(<Test as Config>::TargetList::iter().collect::<Vec<_>>(), all_targets,);
+
+ // no bounds.
+ let bounds =
+ ElectionBoundsBuilder::default().targets_count(u32::MAX.into()).build().targets;
+
+ // target snapshot supports only single-page, thus it is redundant what's the page index
+ // requested.
+ let snapshot = Staking::electable_targets(bounds, 0).unwrap();
+ assert!(
+ snapshot == all_targets &&
+ snapshot == Staking::electable_targets(bounds, 1).unwrap() &&
+ snapshot == Staking::electable_targets(bounds, 2).unwrap() &&
+ snapshot == Staking::electable_targets(bounds, u32::MAX).unwrap(),
+ );
+ })
+ }
+
+ #[test]
+ fn voter_snapshot_works() {
+ ExtBuilder::default()
+ .nominate(true)
+ .set_status(51, StakerStatus::Validator)
+ .set_status(41, StakerStatus::Nominator(vec![51]))
+ .set_status(101, StakerStatus::Validator)
+ .build_and_execute(|| {
+ let bounds = ElectionBoundsBuilder::default().voters_count(3.into()).build().voters;
+ assert_eq!(
+ <Test as Config>::VoterList::iter().collect::<Vec<_>>(),
+ vec![11, 21, 31, 41, 51, 101],
+ );
+
+ let mut all_voters = vec![];
+
+ let voters_page_3 = <Staking as ElectionDataProvider>::electing_voters(bounds, 3)
+ .unwrap()
+ .into_iter()
+ .map(|(a, _, _)| a)
+ .collect::<Vec<_>>();
+ all_voters.extend(voters_page_3.clone());
+
+ assert_eq!(voters_page_3, vec![11, 21, 31]);
+
+ let voters_page_2 = <Staking as ElectionDataProvider>::electing_voters(bounds, 2)
+ .unwrap()
+ .into_iter()
+ .map(|(a, _, _)| a)
+ .collect::<Vec<_>>();
+ all_voters.extend(voters_page_2.clone());
+
+ assert_eq!(voters_page_2, vec![41, 51, 101]);
+
+ // all voters in the list have been consumed.
+ assert_eq!(VoterSnapshotStatus::<Test>::get(), SnapshotStatus::Consumed);
+
+ // thus page 1 and 0 are empty.
+ assert!(<Staking as ElectionDataProvider>::electing_voters(bounds, 1)
+ .unwrap()
+ .is_empty());
+ assert!(<Staking as ElectionDataProvider>::electing_voters(bounds, 0)
+ .unwrap()
+ .is_empty());
+
+ // last page has been requested, reset the snapshot status to waiting.
+ assert_eq!(VoterSnapshotStatus::<Test>::get(), SnapshotStatus::Waiting);
+
+ // now request 1 page with bounds where all registered voters fit. u32::MAX
+ // emulates a no bounds request.
+ let bounds =
+ ElectionBoundsBuilder::default().voters_count(u32::MAX.into()).build().targets;
+
+ let single_page_voters =
+ <Staking as ElectionDataProvider>::electing_voters(bounds, 0)
+ .unwrap()
+ .into_iter()
+ .map(|(a, _, _)| a)
+ .collect::<Vec<_>>();
+
+ // complete set of paged voters is the same as single page, no bounds set of
+ // voters.
+ assert_eq!(all_voters, single_page_voters);
+ })
+ }
+
+ #[test]
+ #[should_panic]
+ fn voter_snapshot_starts_from_msp_to_lsp() {
+ todo!();
+ }
+}
+
+mod paged_exposures {
+ use super::*;
+
+ #[test]
+ fn genesis_collect_exposures_works() {
+ ExtBuilder::default().multi_page_election_provider(3).build_and_execute(|| {
+ // first, clean up all the era data and metadata to mimic a genesis election next.
+ Staking::clear_era_information(current_era());
+
+ // genesis election is single paged.
+ let genesis_result = <<Test as Config>::GenesisElectionProvider>::elect(0u32).unwrap();
+ let expected_exposures = Staking::collect_exposures(genesis_result.clone());
+
+ Staking::try_plan_new_era(0u32, true);
+
+ // expected exposures are stored for the expected genesis validators.
+ for exposure in expected_exposures {
+ assert_eq!(EraInfo::<Test>::get_full_exposure(0, &exposure.0), exposure.1);
+ }
+ })
+ }
+
+ #[test]
+ fn store_stakers_info_elect_works() {
+ ExtBuilder::default().exposures_page_size(2).build_and_execute(|| {
+ assert_eq!(MaxExposurePageSize::get(), 2);
+
+ let exposure_one = Exposure {
+ total: 1000 + 700,
+ own: 1000,
+ others: vec![
+ IndividualExposure { who: 101, value: 500 },
+ IndividualExposure { who: 102, value: 100 },
+ IndividualExposure { who: 103, value: 100 },
+ ],
+ };
+
+ let exposure_two = Exposure {
+ total: 1000 + 1000,
+ own: 1000,
+ others: vec![
+ IndividualExposure { who: 104, value: 500 },
+ IndividualExposure { who: 105, value: 500 },
+ ],
+ };
+
+ let exposure_three = Exposure {
+ total: 1000 + 500,
+ own: 1000,
+ others: vec![
+ IndividualExposure { who: 110, value: 250 },
+ IndividualExposure { who: 111, value: 250 },
+ ],
+ };
+
+ let exposures_page_one = bounded_vec![(1, exposure_one), (2, exposure_two),];
+ let exposures_page_two = bounded_vec![(1, exposure_three),];
+
+ // stores exposure page with exposures of validator 1 and 2, returns exposed validator
+ // account id.
+ assert_eq!(
+ Pallet::<Test>::store_stakers_info(exposures_page_one, current_era()).to_vec(),
+ vec![1, 2]
+ );
+ // Stakers overview OK for validator 1 and 2.
+ assert_eq!(
+ ErasStakersOverview::<Test>::get(0, &1).unwrap(),
+ PagedExposureMetadata { total: 1700, own: 1000, nominator_count: 3, page_count: 2 },
+ );
+ assert_eq!(
+ ErasStakersOverview::<Test>::get(0, &2).unwrap(),
+ PagedExposureMetadata { total: 2000, own: 1000, nominator_count: 2, page_count: 1 },
+ );
+
+ // stores exposure page with exposures of validator 1, returns exposed validator
+ // account id.
+ assert_eq!(
+ Pallet::<Test>::store_stakers_info(exposures_page_two, current_era()).to_vec(),
+ vec![1]
+ );
+
+ // Stakers overview OK for validator 1.
+ assert_eq!(
+ ErasStakersOverview::<Test>::get(0, &1).unwrap(),
+ PagedExposureMetadata { total: 2200, own: 1000, nominator_count: 5, page_count: 3 },
+ );
+
+ // validator 1 has 3 paged exposures.
+ assert!(
+ ErasStakersPaged::<Test>::iter_prefix_values((0, &1)).count() as u32 ==
+ EraInfo::<Test>::get_page_count(0, &1) &&
+ EraInfo::<Test>::get_page_count(0, &1) == 3
+ );
+ assert!(ErasStakersPaged::<Test>::get((0, &1, 0)).is_some());
+ assert!(ErasStakersPaged::<Test>::get((0, &1, 1)).is_some());
+ assert!(ErasStakersPaged::<Test>::get((0, &1, 2)).is_some());
+ assert!(ErasStakersPaged::<Test>::get((0, &1, 3)).is_none());
+
+ // validator 2 has 1 paged exposures.
+ assert!(ErasStakersPaged::<Test>::get((0, &2, 0)).is_some());
+ assert!(ErasStakersPaged::<Test>::get((0, &2, 1)).is_none());
+ assert_eq!(ErasStakersPaged::<Test>::iter_prefix_values((0, &2)).count(), 1);
+
+ // exposures of validator 1 are the expected:
+ assert_eq!(
+ ErasStakersPaged::<Test>::get((0, &1, 0)).unwrap(),
+ ExposurePage {
+ page_total: 600,
+ others: vec![
+ IndividualExposure { who: 101, value: 500 },
+ IndividualExposure { who: 102, value: 100 }
+ ]
+ },
+ );
+ assert_eq!(
+ ErasStakersPaged::<Test>::get((0, &1, 1)).unwrap(),
+ ExposurePage {
+ page_total: 350,
+ others: vec![
+ IndividualExposure { who: 103, value: 100 },
+ IndividualExposure { who: 110, value: 250 }
+ ]
+ }
+ );
+ assert_eq!(
+ ErasStakersPaged::<Test>::get((0, &1, 2)).unwrap(),
+ ExposurePage {
+ page_total: 250,
+ others: vec![IndividualExposure { who: 111, value: 250 }]
+ }
+ );
+
+ // exposures of validator 2.
+ assert_eq!(
+ ErasStakersPaged::<Test>::iter_prefix_values((0, &2)).collect::<Vec<_>>(),
+ vec![ExposurePage {
+ page_total: 1000,
+ others: vec![
+ IndividualExposure { who: 104, value: 500 },
+ IndividualExposure { who: 105, value: 500 }
+ ]
+ }],
+ );
+ })
+ }
+}
diff --git a/substrate/frame/staking/src/weights.rs b/substrate/frame/staking/src/weights.rs
index 02ccdacb01c..92fe0e176a2 100644
--- a/substrate/frame/staking/src/weights.rs
+++ b/substrate/frame/staking/src/weights.rs
@@ -49,6 +49,9 @@ use core::marker::PhantomData;
/// Weight functions needed for `pallet_staking`.
pub trait WeightInfo {
+ fn on_initialize_noop() -> Weight;
+ fn do_elect_paged_inner(v: u32,) -> Weight;
+ fn clear_election_metadata() -> Weight;
fn bond() -> Weight;
fn bond_extra() -> Weight;
fn unbond() -> Weight;
@@ -72,7 +75,6 @@ pub trait WeightInfo {
fn payout_stakers_alive_staked(n: u32, ) -> Weight;
fn rebond(l: u32, ) -> Weight;
fn reap_stash(s: u32, ) -> Weight;
- fn new_era(v: u32, n: u32, ) -> Weight;
fn get_npos_voters(v: u32, n: u32, ) -> Weight;
fn get_npos_targets(v: u32, ) -> Weight;
fn set_staking_configs_all_set() -> Weight;
@@ -87,6 +89,17 @@ pub trait WeightInfo {
/// Weights for `pallet_staking` using the Substrate node and recommended hardware.
pub struct SubstrateWeight<T>(PhantomData<T>);
impl<T: frame_system::Config> WeightInfo for SubstrateWeight<T> {
+ // TODO CI-FAIL: run CI bench bot
+ fn on_initialize_noop() -> Weight {
+ Default::default()
+ }
+ fn do_elect_paged_inner(_v: u32,) -> Weight {
+ Default::default()
+ }
+ fn clear_election_metadata() -> Weight {
+ Default::default()
+ }
+
/// Storage: `Staking::Bonded` (r:1 w:1)
/// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `MaxEncodedLen`)
/// Storage: `Staking::Ledger` (r:1 w:1)
@@ -614,60 +627,6 @@ impl<T: frame_system::Config> WeightInfo for SubstrateWeight<T> {
/// Proof: `VoterList::CounterForListNodes` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
/// Storage: `VoterList::ListBags` (r:200 w:0)
/// Proof: `VoterList::ListBags` (`max_values`: None, `max_size`: Some(82), added: 2557, mode: `MaxEncodedLen`)
- /// Storage: `VoterList::ListNodes` (r:110 w:0)
- /// Proof: `VoterList::ListNodes` (`max_values`: None, `max_size`: Some(154), added: 2629, mode: `MaxEncodedLen`)
- /// Storage: `Staking::Bonded` (r:110 w:0)
- /// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `MaxEncodedLen`)
- /// Storage: `Staking::Ledger` (r:110 w:0)
- /// Proof: `Staking::Ledger` (`max_values`: None, `max_size`: Some(1091), added: 3566, mode: `MaxEncodedLen`)
- /// Storage: `Staking::Nominators` (r:110 w:0)
- /// Proof: `Staking::Nominators` (`max_values`: None, `max_size`: Some(558), added: 3033, mode: `MaxEncodedLen`)
- /// Storage: `Staking::Validators` (r:11 w:0)
- /// Proof: `Staking::Validators` (`max_values`: None, `max_size`: Some(45), added: 2520, mode: `MaxEncodedLen`)
- /// Storage: `Staking::CounterForValidators` (r:1 w:0)
- /// Proof: `Staking::CounterForValidators` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ValidatorCount` (r:1 w:0)
- /// Proof: `Staking::ValidatorCount` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `Staking::MinimumValidatorCount` (r:1 w:0)
- /// Proof: `Staking::MinimumValidatorCount` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `Staking::CurrentEra` (r:1 w:1)
- /// Proof: `Staking::CurrentEra` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ErasValidatorPrefs` (r:0 w:10)
- /// Proof: `Staking::ErasValidatorPrefs` (`max_values`: None, `max_size`: Some(57), added: 2532, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ErasStakersPaged` (r:0 w:10)
- /// Proof: `Staking::ErasStakersPaged` (`max_values`: None, `max_size`: None, mode: `Measured`)
- /// Storage: `Staking::ErasStakersOverview` (r:0 w:10)
- /// Proof: `Staking::ErasStakersOverview` (`max_values`: None, `max_size`: Some(92), added: 2567, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ErasTotalStake` (r:0 w:1)
- /// Proof: `Staking::ErasTotalStake` (`max_values`: None, `max_size`: Some(28), added: 2503, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ErasStartSessionIndex` (r:0 w:1)
- /// Proof: `Staking::ErasStartSessionIndex` (`max_values`: None, `max_size`: Some(16), added: 2491, mode: `MaxEncodedLen`)
- /// Storage: `Staking::MinimumActiveStake` (r:0 w:1)
- /// Proof: `Staking::MinimumActiveStake` (`max_values`: Some(1), `max_size`: Some(16), added: 511, mode: `MaxEncodedLen`)
- /// The range of component `v` is `[1, 10]`.
- /// The range of component `n` is `[0, 100]`.
- fn new_era(v: u32, n: u32, ) -> Weight {
- // Proof Size summary in bytes:
- // Measured: `0 + n * (720 ±0) + v * (3598 ±0)`
- // Estimated: `512390 + n * (3566 ±0) + v * (3566 ±0)`
- // Minimum execution time: 692_301_000 picoseconds.
- Weight::from_parts(708_732_000, 512390)
- // Standard Error: 2_117_299
- .saturating_add(Weight::from_parts(70_087_600, 0).saturating_mul(v.into()))
- // Standard Error: 210_977
- .saturating_add(Weight::from_parts(22_953_405, 0).saturating_mul(n.into()))
- .saturating_add(T::DbWeight::get().reads(206_u64))
- .saturating_add(T::DbWeight::get().reads((5_u64).saturating_mul(v.into())))
- .saturating_add(T::DbWeight::get().reads((4_u64).saturating_mul(n.into())))
- .saturating_add(T::DbWeight::get().writes(3_u64))
- .saturating_add(T::DbWeight::get().writes((3_u64).saturating_mul(v.into())))
- .saturating_add(Weight::from_parts(0, 3566).saturating_mul(n.into()))
- .saturating_add(Weight::from_parts(0, 3566).saturating_mul(v.into()))
- }
- /// Storage: `VoterList::CounterForListNodes` (r:1 w:0)
- /// Proof: `VoterList::CounterForListNodes` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `VoterList::ListBags` (r:200 w:0)
- /// Proof: `VoterList::ListBags` (`max_values`: None, `max_size`: Some(82), added: 2557, mode: `MaxEncodedLen`)
/// Storage: `VoterList::ListNodes` (r:2000 w:0)
/// Proof: `VoterList::ListNodes` (`max_values`: None, `max_size`: Some(154), added: 2629, mode: `MaxEncodedLen`)
/// Storage: `Staking::Bonded` (r:2000 w:0)
@@ -860,6 +819,17 @@ impl<T: frame_system::Config> WeightInfo for SubstrateWeight<T> {
// For backwards compatibility and tests.
impl WeightInfo for () {
+ // TODO: run CI bench bot
+ fn on_initialize_noop() -> Weight {
+ RocksDbWeight::get().reads(1)
+ }
+ fn do_elect_paged_inner(_v: u32,) -> Weight {
+ RocksDbWeight::get().reads(1)
+ }
+ fn clear_election_metadata() -> Weight {
+ RocksDbWeight::get().reads(1)
+ }
+
/// Storage: `Staking::Bonded` (r:1 w:1)
/// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `MaxEncodedLen`)
/// Storage: `Staking::Ledger` (r:1 w:1)
@@ -1387,60 +1357,6 @@ impl WeightInfo for () {
/// Proof: `VoterList::CounterForListNodes` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
/// Storage: `VoterList::ListBags` (r:200 w:0)
/// Proof: `VoterList::ListBags` (`max_values`: None, `max_size`: Some(82), added: 2557, mode: `MaxEncodedLen`)
- /// Storage: `VoterList::ListNodes` (r:110 w:0)
- /// Proof: `VoterList::ListNodes` (`max_values`: None, `max_size`: Some(154), added: 2629, mode: `MaxEncodedLen`)
- /// Storage: `Staking::Bonded` (r:110 w:0)
- /// Proof: `Staking::Bonded` (`max_values`: None, `max_size`: Some(72), added: 2547, mode: `MaxEncodedLen`)
- /// Storage: `Staking::Ledger` (r:110 w:0)
- /// Proof: `Staking::Ledger` (`max_values`: None, `max_size`: Some(1091), added: 3566, mode: `MaxEncodedLen`)
- /// Storage: `Staking::Nominators` (r:110 w:0)
- /// Proof: `Staking::Nominators` (`max_values`: None, `max_size`: Some(558), added: 3033, mode: `MaxEncodedLen`)
- /// Storage: `Staking::Validators` (r:11 w:0)
- /// Proof: `Staking::Validators` (`max_values`: None, `max_size`: Some(45), added: 2520, mode: `MaxEncodedLen`)
- /// Storage: `Staking::CounterForValidators` (r:1 w:0)
- /// Proof: `Staking::CounterForValidators` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ValidatorCount` (r:1 w:0)
- /// Proof: `Staking::ValidatorCount` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `Staking::MinimumValidatorCount` (r:1 w:0)
- /// Proof: `Staking::MinimumValidatorCount` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `Staking::CurrentEra` (r:1 w:1)
- /// Proof: `Staking::CurrentEra` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ErasValidatorPrefs` (r:0 w:10)
- /// Proof: `Staking::ErasValidatorPrefs` (`max_values`: None, `max_size`: Some(57), added: 2532, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ErasStakersPaged` (r:0 w:10)
- /// Proof: `Staking::ErasStakersPaged` (`max_values`: None, `max_size`: None, mode: `Measured`)
- /// Storage: `Staking::ErasStakersOverview` (r:0 w:10)
- /// Proof: `Staking::ErasStakersOverview` (`max_values`: None, `max_size`: Some(92), added: 2567, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ErasTotalStake` (r:0 w:1)
- /// Proof: `Staking::ErasTotalStake` (`max_values`: None, `max_size`: Some(28), added: 2503, mode: `MaxEncodedLen`)
- /// Storage: `Staking::ErasStartSessionIndex` (r:0 w:1)
- /// Proof: `Staking::ErasStartSessionIndex` (`max_values`: None, `max_size`: Some(16), added: 2491, mode: `MaxEncodedLen`)
- /// Storage: `Staking::MinimumActiveStake` (r:0 w:1)
- /// Proof: `Staking::MinimumActiveStake` (`max_values`: Some(1), `max_size`: Some(16), added: 511, mode: `MaxEncodedLen`)
- /// The range of component `v` is `[1, 10]`.
- /// The range of component `n` is `[0, 100]`.
- fn new_era(v: u32, n: u32, ) -> Weight {
- // Proof Size summary in bytes:
- // Measured: `0 + n * (720 ±0) + v * (3598 ±0)`
- // Estimated: `512390 + n * (3566 ±0) + v * (3566 ±0)`
- // Minimum execution time: 692_301_000 picoseconds.
- Weight::from_parts(708_732_000, 512390)
- // Standard Error: 2_117_299
- .saturating_add(Weight::from_parts(70_087_600, 0).saturating_mul(v.into()))
- // Standard Error: 210_977
- .saturating_add(Weight::from_parts(22_953_405, 0).saturating_mul(n.into()))
- .saturating_add(RocksDbWeight::get().reads(206_u64))
- .saturating_add(RocksDbWeight::get().reads((5_u64).saturating_mul(v.into())))
- .saturating_add(RocksDbWeight::get().reads((4_u64).saturating_mul(n.into())))
- .saturating_add(RocksDbWeight::get().writes(3_u64))
- .saturating_add(RocksDbWeight::get().writes((3_u64).saturating_mul(v.into())))
- .saturating_add(Weight::from_parts(0, 3566).saturating_mul(n.into()))
- .saturating_add(Weight::from_parts(0, 3566).saturating_mul(v.into()))
- }
- /// Storage: `VoterList::CounterForListNodes` (r:1 w:0)
- /// Proof: `VoterList::CounterForListNodes` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
- /// Storage: `VoterList::ListBags` (r:200 w:0)
- /// Proof: `VoterList::ListBags` (`max_values`: None, `max_size`: Some(82), added: 2557, mode: `MaxEncodedLen`)
/// Storage: `VoterList::ListNodes` (r:2000 w:0)
/// Proof: `VoterList::ListNodes` (`max_values`: None, `max_size`: Some(154), added: 2629, mode: `MaxEncodedLen`)
/// Storage: `Staking::Bonded` (r:2000 w:0)
@@ -1629,4 +1545,4 @@ impl WeightInfo for () {
.saturating_add(RocksDbWeight::get().reads(6_u64))
.saturating_add(RocksDbWeight::get().writes(2_u64))
}
-}
\ No newline at end of file
+}
diff --git a/substrate/frame/support/procedural/src/construct_runtime/expand/outer_enums.rs b/substrate/frame/support/procedural/src/construct_runtime/expand/outer_enums.rs
index 80d3a5af266..1f19687c36f 100644
--- a/substrate/frame/support/procedural/src/construct_runtime/expand/outer_enums.rs
+++ b/substrate/frame/support/procedural/src/construct_runtime/expand/outer_enums.rs
@@ -160,7 +160,7 @@ pub fn expand_outer_enum(
#scrate::__private::codec::Encode,
#scrate::__private::codec::Decode,
#scrate::__private::scale_info::TypeInfo,
- #scrate::__private::RuntimeDebug,
+ #scrate::__private::Debug,
)]
#[allow(non_camel_case_types)]
pub enum #enum_name_ident {
diff --git a/substrate/frame/support/procedural/src/pallet/expand/event.rs b/substrate/frame/support/procedural/src/pallet/expand/event.rs
index 8519143179d..45ca4b7df94 100644
--- a/substrate/frame/support/procedural/src/pallet/expand/event.rs
+++ b/substrate/frame/support/procedural/src/pallet/expand/event.rs
@@ -120,7 +120,7 @@ pub fn expand_event(def: &mut Def) -> proc_macro2::TokenStream {
#frame_support::CloneNoBound,
#frame_support::EqNoBound,
#frame_support::PartialEqNoBound,
- #frame_support::RuntimeDebugNoBound,
+ #frame_support::DebugNoBound,
#frame_support::__private::codec::Encode,
#frame_support::__private::codec::Decode,
#frame_support::__private::scale_info::TypeInfo,
diff --git a/substrate/frame/support/src/lib.rs b/substrate/frame/support/src/lib.rs
index cd3312ebfd8..6dbd0605a52 100644
--- a/substrate/frame/support/src/lib.rs
+++ b/substrate/frame/support/src/lib.rs
@@ -43,6 +43,7 @@ extern crate alloc;
pub mod __private {
pub use alloc::{
boxed::Box,
+ fmt::Debug,
rc::Rc,
string::String,
vec,
diff --git a/substrate/frame/support/test/tests/construct_runtime_ui/deprecated_where_block.stderr b/substrate/frame/support/test/tests/construct_runtime_ui/deprecated_where_block.stderr
index 2385a8f7ee4..3b0bf05bd4e 100644
--- a/substrate/frame/support/test/tests/construct_runtime_ui/deprecated_where_block.stderr
+++ b/substrate/frame/support/test/tests/construct_runtime_ui/deprecated_where_block.stderr
@@ -237,12 +237,14 @@ error[E0277]: the trait bound `Runtime: Config` is not satisfied
... |
27 | | }
28 | | }
- | |_^ the trait `Config` is not implemented for `Runtime`, which is required by `frame_system::Event<Runtime>: std::fmt::Debug`
+ | |_^ the trait `Config` is not implemented for `Runtime`, which is required by `&frame_system::Event<Runtime>: std::fmt::Debug`
|
= help: the trait `std::fmt::Debug` is implemented for `frame_system::Event<T>`
= note: required for `frame_system::Event<Runtime>` to implement `std::fmt::Debug`
- = note: required for the cast from `&frame_system::Event<Runtime>` to `&dyn std::fmt::Debug`
- = note: this error originates in the derive macro `self::sp_api_hidden_includes_construct_runtime::hidden_include::__private::RuntimeDebug` (in Nightly builds, run with -Z macro-backtrace for more info)
+ = note: 1 redundant requirement hidden
+ = note: required for `&frame_system::Event<Runtime>` to implement `std::fmt::Debug`
+ = note: required for the cast from `&&frame_system::Event<Runtime>` to `&dyn std::fmt::Debug`
+ = note: this error originates in the derive macro `self::sp_api_hidden_includes_construct_runtime::hidden_include::__private::Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: the trait bound `Runtime: Config` is not satisfied
--> tests/construct_runtime_ui/deprecated_where_block.rs:20:1
@@ -254,12 +256,14 @@ error[E0277]: the trait bound `Runtime: Config` is not satisfied
... |
27 | | }
28 | | }
- | |_^ the trait `Config` is not implemented for `Runtime`, which is required by `frame_system::Error<Runtime>: std::fmt::Debug`
+ | |_^ the trait `Config` is not implemented for `Runtime`, which is required by `&frame_system::Error<Runtime>: std::fmt::Debug`
|
= help: the trait `std::fmt::Debug` is implemented for `frame_system::Error<T>`
= note: required for `frame_system::Error<Runtime>` to implement `std::fmt::Debug`
- = note: required for the cast from `&frame_system::Error<Runtime>` to `&dyn std::fmt::Debug`
- = note: this error originates in the derive macro `self::sp_api_hidden_includes_construct_runtime::hidden_include::__private::RuntimeDebug` (in Nightly builds, run with -Z macro-backtrace for more info)
+ = note: 1 redundant requirement hidden
+ = note: required for `&frame_system::Error<Runtime>` to implement `std::fmt::Debug`
+ = note: required for the cast from `&&frame_system::Error<Runtime>` to `&dyn std::fmt::Debug`
+ = note: this error originates in the derive macro `self::sp_api_hidden_includes_construct_runtime::hidden_include::__private::Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: the trait bound `Runtime: Config` is not satisfied
--> tests/construct_runtime_ui/deprecated_where_block.rs:20:1
diff --git a/substrate/primitives/npos-elections/src/helpers.rs b/substrate/primitives/npos-elections/src/helpers.rs
index 7df6ec9d9db..04f8a5648af 100644
--- a/substrate/primitives/npos-elections/src/helpers.rs
+++ b/substrate/primitives/npos-elections/src/helpers.rs
@@ -17,8 +17,11 @@
//! Helper methods for npos-elections.
-use crate::{Assignment, Error, IdentifierT, PerThing128, StakedAssignment, VoteWeight};
-use alloc::vec::Vec;
+use crate::{
+ Assignment, Error, ExtendedBalance, IdentifierT, PerThing128, StakedAssignment, Supports,
+ VoteWeight,
+};
+use alloc::{collections::BTreeMap, vec::Vec};
use sp_arithmetic::PerThing;
/// Converts a vector of ratio assignments into ones with absolute budget value.
@@ -50,7 +53,7 @@ where
{
let mut staked = assignment_ratio_to_staked(ratio, &stake_of);
staked.iter_mut().try_for_each(|a| {
- a.try_normalize(stake_of(&a.who).into()).map_err(Error::ArithmeticError)
+ a.try_normalize(stake_of(&a.who).into()).map_err(|_| Error::ArithmeticError)
})?;
Ok(staked)
}
@@ -70,11 +73,28 @@ pub fn assignment_staked_to_ratio_normalized<A: IdentifierT, P: PerThing128>(
) -> Result<Vec<Assignment<A, P>>, Error> {
let mut ratio = staked.into_iter().map(|a| a.into_assignment()).collect::<Vec<_>>();
for assignment in ratio.iter_mut() {
- assignment.try_normalize().map_err(Error::ArithmeticError)?;
+ assignment.try_normalize().map_err(|_| Error::ArithmeticError)?;
}
Ok(ratio)
}
+/// Convert some [`Supports`]s into vector of [`StakedAssignment`]
+pub fn supports_to_staked_assignment<A: IdentifierT>(
+ supports: Supports<A>,
+) -> Vec<StakedAssignment<A>> {
+ let mut staked: BTreeMap<A, Vec<(A, ExtendedBalance)>> = BTreeMap::new();
+ for (target, support) in supports {
+ for (voter, amount) in support.voters {
+ staked.entry(voter).or_default().push((target.clone(), amount))
+ }
+ }
+
+ staked
+ .into_iter()
+ .map(|(who, distribution)| StakedAssignment { who, distribution })
+ .collect::<Vec<_>>()
+}
+
#[cfg(test)]
mod tests {
use super::*;
diff --git a/substrate/primitives/npos-elections/src/lib.rs b/substrate/primitives/npos-elections/src/lib.rs
index 82ac40fe273..12d4c5948ed 100644
--- a/substrate/primitives/npos-elections/src/lib.rs
+++ b/substrate/primitives/npos-elections/src/lib.rs
@@ -83,7 +83,7 @@ use scale_info::TypeInfo;
#[cfg(feature = "serde")]
use serde::{Deserialize, Serialize};
use sp_arithmetic::{traits::Zero, Normalizable, PerThing, Rational128, ThresholdOrd};
-use sp_core::{bounded::BoundedVec, RuntimeDebug};
+use sp_core::RuntimeDebug;
#[cfg(test)]
mod mock;
@@ -110,7 +110,9 @@ pub use reduce::reduce;
pub use traits::{IdentifierT, PerThing128};
/// The errors that might occur in this crate and `frame-election-provider-solution-type`.
-#[derive(Eq, PartialEq, RuntimeDebug)]
+#[derive(
+ Eq, PartialEq, RuntimeDebug, Clone, codec::Encode, codec::Decode, scale_info::TypeInfo,
+)]
pub enum Error {
/// While going from solution indices to ratio, the weight of all the edges has gone above the
/// total.
@@ -122,11 +124,13 @@ pub enum Error {
/// One of the page indices was invalid.
SolutionInvalidPageIndex,
/// An error occurred in some arithmetic operation.
- ArithmeticError(&'static str),
+ ArithmeticError,
/// The data provided to create support map was invalid.
InvalidSupportEdge,
/// The number of voters is bigger than the `MaxVoters` bound.
TooManyVoters,
+ /// Some bounds were exceeded when converting election types.
+ BoundsExceeded,
}
/// A type which is used in the API of this crate as a numeric weight of a vote, most often the
@@ -444,6 +448,18 @@ impl<AccountId> Default for Support<AccountId> {
}
}
+impl<AccountId: Clone> Support<AccountId> {
+ pub fn self_vote_only(who: AccountId, amount: ExtendedBalance) -> (AccountId, Self) {
+ (who.clone(), Self { total: amount, voters: vec![(who, amount)] })
+ }
+}
+
+impl<AccountId> Backings for &Support<AccountId> {
+ fn total(&self) -> ExtendedBalance {
+ self.total
+ }
+}
+
/// A target-major representation of the the election outcome.
///
/// Essentially a flat variant of [`SupportMap`].
@@ -451,11 +467,6 @@ impl<AccountId> Default for Support<AccountId> {
/// The main advantage of this is that it is encodable.
pub type Supports<A> = Vec<(A, Support<A>)>;
-/// Same as `Supports` but bounded by `B`.
-///
-/// To note, the inner `Support` is still unbounded.
-pub type BoundedSupports<A, B> = BoundedVec<(A, Support<A>), B>;
-
/// Linkage from a winner to their [`Support`].
///
/// This is more helpful than a normal [`Supports`] as it allows faster error checking.
@@ -479,8 +490,7 @@ pub fn to_support_map<AccountId: IdentifierT>(
supports
}
-/// Same as [`to_support_map`] except it returns a
-/// flat vector.
+/// Same as [`to_support_map`] except it returns a flat vector.
pub fn to_supports<AccountId: IdentifierT>(
assignments: &[StakedAssignment<AccountId>],
) -> Supports<AccountId> {
@@ -499,23 +509,34 @@ pub trait EvaluateSupport {
impl<AccountId: IdentifierT> EvaluateSupport for Supports<AccountId> {
fn evaluate(&self) -> ElectionScore {
- let mut minimal_stake = ExtendedBalance::max_value();
- let mut sum_stake: ExtendedBalance = Zero::zero();
- // NOTE: The third element might saturate but fine for now since this will run on-chain and
- // need to be fast.
- let mut sum_stake_squared: ExtendedBalance = Zero::zero();
-
- for (_, support) in self {
- sum_stake = sum_stake.saturating_add(support.total);
- let squared = support.total.saturating_mul(support.total);
- sum_stake_squared = sum_stake_squared.saturating_add(squared);
- if support.total < minimal_stake {
- minimal_stake = support.total;
- }
- }
+ evaluate_support(self.iter().map(|(_, s)| s))
+ }
+}
- ElectionScore { minimal_stake, sum_stake, sum_stake_squared }
+/// Generic representation of a support.
+pub trait Backings {
+ /// The total backing of an individual target.
+ fn total(&self) -> ExtendedBalance;
+}
+
+/// General evaluation of a list of backings that returns an election score.
+pub fn evaluate_support(backings: impl Iterator<Item = impl Backings>) -> ElectionScore {
+ let mut minimal_stake = ExtendedBalance::max_value();
+ let mut sum_stake: ExtendedBalance = Zero::zero();
+ // NOTE: The third element might saturate but fine for now since this will run on-chain and
+ // need to be fast.
+ let mut sum_stake_squared: ExtendedBalance = Zero::zero();
+
+ for support in backings {
+ sum_stake = sum_stake.saturating_add(support.total());
+ let squared = support.total().saturating_mul(support.total());
+ sum_stake_squared = sum_stake_squared.saturating_add(squared);
+ if support.total() < minimal_stake {
+ minimal_stake = support.total();
+ }
}
+
+ ElectionScore { minimal_stake, sum_stake, sum_stake_squared }
}
/// Converts raw inputs to types used in this crate.
diff --git a/substrate/primitives/npos-elections/src/phragmen.rs b/substrate/primitives/npos-elections/src/phragmen.rs
index f331152e722..404c2ff8e6b 100644
--- a/substrate/primitives/npos-elections/src/phragmen.rs
+++ b/substrate/primitives/npos-elections/src/phragmen.rs
@@ -97,7 +97,7 @@ pub fn seq_phragmen<AccountId: IdentifierT, P: PerThing128>(
voters.into_iter().filter_map(|v| v.into_assignment()).collect::<Vec<_>>();
let _ = assignments
.iter_mut()
- .try_for_each(|a| a.try_normalize().map_err(crate::Error::ArithmeticError))?;
+ .try_for_each(|a| a.try_normalize().map_err(|_| crate::Error::ArithmeticError))?;
let winners = winners
.into_iter()
.map(|w_ptr| (w_ptr.borrow().who.clone(), w_ptr.borrow().backed_stake))
@@ -205,7 +205,7 @@ pub fn seq_phragmen_core<AccountId: IdentifierT>(
// edge of all candidates that eventually have a non-zero weight must be elected.
debug_assert!(voter.edges.iter().all(|e| e.candidate.borrow().elected));
// inc budget to sum the budget.
- voter.try_normalize_elected().map_err(crate::Error::ArithmeticError)?;
+ voter.try_normalize_elected().map_err(|_| crate::Error::ArithmeticError)?;
}
Ok((candidates, voters))
diff --git a/substrate/primitives/npos-elections/src/phragmms.rs b/substrate/primitives/npos-elections/src/phragmms.rs
index 9a17f0dfa7c..6a44bf86512 100644
--- a/substrate/primitives/npos-elections/src/phragmms.rs
+++ b/substrate/primitives/npos-elections/src/phragmms.rs
@@ -71,7 +71,7 @@ pub fn phragmms<AccountId: IdentifierT, P: PerThing128>(
let _ = assignments
.iter_mut()
.try_for_each(|a| a.try_normalize())
- .map_err(crate::Error::ArithmeticError)?;
+ .map_err(|_| crate::Error::ArithmeticError)?;
let winners = winners
.into_iter()
.map(|w_ptr| (w_ptr.borrow().who.clone(), w_ptr.borrow().backed_stake))
diff --git a/substrate/primitives/staking/src/lib.rs b/substrate/primitives/staking/src/lib.rs
index 8e23c6800a9..538cef00e26 100644
--- a/substrate/primitives/staking/src/lib.rs
+++ b/substrate/primitives/staking/src/lib.rs
@@ -25,7 +25,7 @@ extern crate alloc;
use crate::currency_to_vote::CurrencyToVote;
use alloc::{collections::btree_map::BTreeMap, vec, vec::Vec};
use codec::{Decode, Encode, FullCodec, HasCompact, MaxEncodedLen};
-use core::ops::Sub;
+use core::ops::{Add, AddAssign, Sub, SubAssign};
use scale_info::TypeInfo;
use sp_runtime::{
traits::{AtLeast32BitUnsigned, Zero},
@@ -346,7 +346,7 @@ pub trait StakingUnchecked: StakingInterface {
}
/// The amount of exposure for an era that an individual nominator has (susceptible to slashing).
-#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Encode, Decode, RuntimeDebug, TypeInfo)]
+#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Encode, Decode, RuntimeDebug, TypeInfo, Copy)]
pub struct IndividualExposure<AccountId, Balance: HasCompact> {
/// The stash account of the nominator in question.
pub who: AccountId,
@@ -379,7 +379,31 @@ impl<
Balance: HasCompact + AtLeast32BitUnsigned + Copy + codec::MaxEncodedLen,
> Exposure<AccountId, Balance>
{
- /// Splits an `Exposure` into `PagedExposureMetadata` and multiple chunks of
+ /// Splits self into two instances of exposures.
+ ///
+ /// `n_others` individual exposures are consumed from self and returned as part of the new
+ /// exposure.
+ ///
+ /// Since this method splits `others` of a single exposure, `total.own` will be the same for
+ /// both `self` and the returned exposure.
+ pub fn split_others(&mut self, n_others: u32) -> Self {
+ let head_others: Vec<_> =
+ self.others.drain(..(n_others as usize).min(self.others.len())).collect();
+
+ let total_others_head: Balance = head_others
+ .iter()
+ .fold(Zero::zero(), |acc: Balance, o| acc.saturating_add(o.value));
+
+ self.total = self.total.saturating_sub(total_others_head);
+
+ Self {
+ total: total_others_head.saturating_add(self.own),
+ own: self.own,
+ others: head_others,
+ }
+ }
+
+ /// Converts an `Exposure` into `PagedExposureMetadata` and multiple chunks of
/// `IndividualExposure` with each chunk having maximum of `page_size` elements.
pub fn into_pages(
self,
@@ -400,7 +424,6 @@ impl<
value: individual.value,
})
}
-
exposure_pages.push(ExposurePage { page_total, others });
}
@@ -432,6 +455,19 @@ impl<A, B: Default + HasCompact> Default for ExposurePage<A, B> {
}
}
+/// Returns an exposure page from a set of individual exposures.
+impl<A, B: HasCompact + Default + AddAssign + SubAssign + Clone> From<Vec<IndividualExposure<A, B>>>
+ for ExposurePage<A, B>
+{
+ fn from(exposures: Vec<IndividualExposure<A, B>>) -> Self {
+ exposures.into_iter().fold(ExposurePage::default(), |mut page, e| {
+ page.page_total += e.value.clone();
+ page.others.push(e);
+ page
+ })
+ }
+}
+
/// Metadata for Paged Exposure of a validator such as total stake across pages and page count.
///
/// In combination with the associated `ExposurePage`s, it can be used to reconstruct a full
@@ -449,6 +485,7 @@ impl<A, B: Default + HasCompact> Default for ExposurePage<A, B> {
TypeInfo,
Default,
MaxEncodedLen,
+ Copy,
)]
pub struct PagedExposureMetadata<Balance: HasCompact + codec::MaxEncodedLen> {
/// The total balance backing this validator.
@@ -463,6 +500,42 @@ pub struct PagedExposureMetadata<Balance: HasCompact + codec::MaxEncodedLen> {
pub page_count: Page,
}
+impl<Balance> PagedExposureMetadata<Balance>
+where
+ Balance: HasCompact
+ + codec::MaxEncodedLen
+ + Add<Output = Balance>
+ + Sub<Output = Balance>
+ + sp_runtime::Saturating
+ + PartialEq
+ + Copy
+ + sp_runtime::traits::Debug,
+{
+ /// Consumes self and returns the result of the metadata updated with `other_balances` and
+ /// of adding `other_num` nominators to the metadata.
+ ///
+ /// `Max` is a getter of the maximum number of nominators per page.
+ pub fn update_with<Max: sp_core::Get<u32>>(
+ self,
+ others_balance: Balance,
+ others_num: u32,
+ ) -> Self {
+ let page_limit = Max::get().max(1);
+ let new_nominator_count = self.nominator_count.saturating_add(others_num);
+ let new_page_count = new_nominator_count
+ .saturating_add(page_limit)
+ .saturating_sub(1)
+ .saturating_div(page_limit);
+
+ Self {
+ total: self.total.saturating_add(others_balance),
+ own: self.own,
+ nominator_count: new_nominator_count,
+ page_count: new_page_count,
+ }
+ }
+}
+
/// A type that belongs only in the context of an `Agent`.
///
/// `Agent` is someone that manages delegated funds from [`Delegator`] accounts. It can
@@ -623,3 +696,114 @@ pub trait DelegationMigrator {
}
sp_core::generate_feature_enabled_macro!(runtime_benchmarks_enabled, feature = "runtime-benchmarks", $);
+
+#[cfg(test)]
+mod tests {
+ use sp_core::ConstU32;
+
+ use super::*;
+
+ #[test]
+ fn update_with_works() {
+ let metadata = PagedExposureMetadata::<u32> {
+ total: 1000,
+ own: 0, // don't care
+ nominator_count: 10,
+ page_count: 1,
+ };
+
+ assert_eq!(
+ metadata.update_with::<ConstU32<10>>(1, 1),
+ PagedExposureMetadata { total: 1001, own: 0, nominator_count: 11, page_count: 2 },
+ );
+
+ assert_eq!(
+ metadata.update_with::<ConstU32<5>>(1, 1),
+ PagedExposureMetadata { total: 1001, own: 0, nominator_count: 11, page_count: 3 },
+ );
+
+ assert_eq!(
+ metadata.update_with::<ConstU32<4>>(1, 1),
+ PagedExposureMetadata { total: 1001, own: 0, nominator_count: 11, page_count: 3 },
+ );
+
+ assert_eq!(
+ metadata.update_with::<ConstU32<1>>(1, 1),
+ PagedExposureMetadata { total: 1001, own: 0, nominator_count: 11, page_count: 11 },
+ );
+ }
+
+ #[test]
+ fn individual_exposures_to_exposure_works() {
+ let exposure_1 = IndividualExposure { who: 1, value: 10u32 };
+ let exposure_2 = IndividualExposure { who: 2, value: 20 };
+ let exposure_3 = IndividualExposure { who: 3, value: 30 };
+
+ let exposure_page: ExposurePage<u32, u32> = vec![exposure_1, exposure_2, exposure_3].into();
+
+ assert_eq!(
+ exposure_page,
+ ExposurePage { page_total: 60, others: vec![exposure_1, exposure_2, exposure_3] },
+ );
+ }
+
+ #[test]
+ fn empty_individual_exposures_to_exposure_works() {
+ let empty_exposures: Vec<IndividualExposure<u32, u32>> = vec![];
+
+ let exposure_page: ExposurePage<u32, u32> = empty_exposures.into();
+ assert_eq!(exposure_page, ExposurePage { page_total: 0, others: vec![] });
+ }
+
+ #[test]
+ fn exposure_split_others_works() {
+ let exposure = Exposure {
+ total: 100,
+ own: 20,
+ others: vec![
+ IndividualExposure { who: 1, value: 20u32 },
+ IndividualExposure { who: 2, value: 20 },
+ IndividualExposure { who: 3, value: 20 },
+ IndividualExposure { who: 4, value: 20 },
+ ],
+ };
+
+ let mut exposure_0 = exposure.clone();
+ // split others with with 0 `n_others` is a noop and returns an empty exposure (with `own`
+ // only).
+ let split_exposure = exposure_0.split_others(0);
+ assert_eq!(exposure_0, exposure);
+ assert_eq!(split_exposure, Exposure { total: 20, own: 20, others: vec![] });
+
+ let mut exposure_1 = exposure.clone();
+ // split individual exposures so that the returned exposure has 1 individual exposure.
+ let split_exposure = exposure_1.split_others(1);
+ assert_eq!(exposure_1.own, 20);
+ assert_eq!(exposure_1.total, 20 + 3 * 20);
+ assert_eq!(exposure_1.others.len(), 3);
+
+ assert_eq!(split_exposure.own, 20);
+ assert_eq!(split_exposure.total, 20 + 1 * 20);
+ assert_eq!(split_exposure.others.len(), 1);
+
+ let mut exposure_3 = exposure.clone();
+ // split individual exposures so that the returned exposure has 3 individual exposures,
+ // which are consumed from the original exposure.
+ let split_exposure = exposure_3.split_others(3);
+ assert_eq!(exposure_3.own, 20);
+ assert_eq!(exposure_3.total, 20 + 1 * 20);
+ assert_eq!(exposure_3.others.len(), 1);
+
+ assert_eq!(split_exposure.own, 20);
+ assert_eq!(split_exposure.total, 20 + 3 * 20);
+ assert_eq!(split_exposure.others.len(), 3);
+
+ let mut exposure_max = exposure.clone();
+ // split others with with more `n_others` than the number of others in the exposure
+ // consumes all the individual exposures of the original Exposure and returns them in the
+ // new exposure.
+ let split_exposure = exposure_max.split_others(u32::MAX);
+ assert_eq!(split_exposure, exposure);
+ assert_eq!(exposure_max, Exposure { total: 20, own: 20, others: vec![] });
+ }
+}
diff --git a/substrate/primitives/staking/src/offence.rs b/substrate/primitives/staking/src/offence.rs
index e73e8efe583..9e3c0e5a194 100644
--- a/substrate/primitives/staking/src/offence.rs
+++ b/substrate/primitives/staking/src/offence.rs
@@ -19,7 +19,7 @@
//! that use staking.
use alloc::vec::Vec;
-use codec::{Decode, Encode};
+use codec::{Decode, Encode, MaxEncodedLen};
use sp_core::Get;
use sp_runtime::{transaction_validity::TransactionValidityError, DispatchError, Perbill};
@@ -252,7 +252,15 @@ impl<Reporter, Evidence> OffenceReportSystem<Reporter, Evidence> for () {
/// For instance used for the purposes of distinguishing who should be
/// prioritized for disablement.
#[derive(
- Clone, Copy, PartialEq, Eq, Encode, Decode, sp_runtime::RuntimeDebug, scale_info::TypeInfo,
+ Clone,
+ Copy,
+ PartialEq,
+ Eq,
+ Encode,
+ Decode,
+ MaxEncodedLen,
+ sp_runtime::RuntimeDebug,
+ scale_info::TypeInfo,
)]
pub struct OffenceSeverity(pub Perbill);
diff --git a/substrate/utils/frame/benchmarking-cli/src/pallet/command.rs b/substrate/utils/frame/benchmarking-cli/src/pallet/command.rs
index 0c068fc585b..c7c5f5c478a 100644
--- a/substrate/utils/frame/benchmarking-cli/src/pallet/command.rs
+++ b/substrate/utils/frame/benchmarking-cli/src/pallet/command.rs
@@ -598,6 +598,7 @@ impl PalletCmd {
let benchmark_name = &benchmark.name;
if extrinsic.is_empty() ||
extrinsic.as_bytes() == &b"*"[..] ||
+ extrinsic.as_bytes() == &b"all"[..] ||
extrinsics.contains(&&benchmark_name[..])
{
benchmarks_to_run.push((
@@ -645,7 +646,10 @@ impl PalletCmd {
fn pallet_selected(&self, pallet: &Vec<u8>) -> bool {
let include = self.pallet.clone().unwrap_or_default();
- let included = include.is_empty() || include == "*" || include.as_bytes() == pallet;
+ let included = include.is_empty() ||
+ include == "*" ||
+ include == "all" ||
+ include.as_bytes() == pallet;
let excluded = self.exclude_pallets.iter().any(|p| p.as_bytes() == pallet);
included && !excluded
diff --git a/substrate/utils/frame/benchmarking-cli/src/pallet/mod.rs b/substrate/utils/frame/benchmarking-cli/src/pallet/mod.rs
index 54a055d4a33..caa999c3a6c 100644
--- a/substrate/utils/frame/benchmarking-cli/src/pallet/mod.rs
+++ b/substrate/utils/frame/benchmarking-cli/src/pallet/mod.rs
@@ -50,7 +50,7 @@ pub struct PalletCmd {
#[arg(short, long, value_parser = parse_pallet_name, required_unless_present_any = ["list", "json_input", "all"], default_value_if("all", "true", Some("*".into())))]
pub pallet: Option<String>,
- /// Select an extrinsic inside the pallet to benchmark, or `*` for all.
+ /// Select an extrinsic inside the pallet to benchmark, or `*` or 'all' for all.
#[arg(short, long, required_unless_present_any = ["list", "json_input", "all"], default_value_if("all", "true", Some("*".into())))]
pub extrinsic: Option<String>,
diff --git a/umbrella/Cargo.toml b/umbrella/Cargo.toml
index fc0b2d5a140..80b72febfb5 100644
--- a/umbrella/Cargo.toml
+++ b/umbrella/Cargo.toml
@@ -87,6 +87,7 @@ std = [
"pallet-delegated-staking?/std",
"pallet-democracy?/std",
"pallet-dev-mode?/std",
+ "pallet-election-provider-multi-block?/std",
"pallet-election-provider-multi-phase?/std",
"pallet-election-provider-support-benchmarking?/std",
"pallet-elections-phragmen?/std",
@@ -281,6 +282,7 @@ runtime-benchmarks = [
"pallet-core-fellowship?/runtime-benchmarks",
"pallet-delegated-staking?/runtime-benchmarks",
"pallet-democracy?/runtime-benchmarks",
+ "pallet-election-provider-multi-block?/runtime-benchmarks",
"pallet-election-provider-multi-phase?/runtime-benchmarks",
"pallet-election-provider-support-benchmarking?/runtime-benchmarks",
"pallet-elections-phragmen?/runtime-benchmarks",
@@ -417,6 +419,7 @@ try-runtime = [
"pallet-delegated-staking?/try-runtime",
"pallet-democracy?/try-runtime",
"pallet-dev-mode?/try-runtime",
+ "pallet-election-provider-multi-block?/try-runtime",
"pallet-election-provider-multi-phase?/try-runtime",
"pallet-elections-phragmen?/try-runtime",
"pallet-fast-unstake?/try-runtime",
@@ -546,7 +549,7 @@ with-tracing = [
"sp-tracing?/with-tracing",
"sp-tracing?/with-tracing",
]
-runtime-full = ["assets-common", "binary-merkle-tree", "bp-header-chain", "bp-messages", "bp-parachains", "bp-polkadot", "bp-polkadot-core", "bp-relayers", "bp-runtime", "bp-test-utils", "bp-xcm-bridge-hub", "bp-xcm-bridge-hub-router", "bridge-hub-common", "bridge-runtime-common", "cumulus-pallet-aura-ext", "cumulus-pallet-dmp-queue", "cumulus-pallet-parachain-system", "cumulus-pallet-parachain-system-proc-macro", "cumulus-pallet-session-benchmarking", "cumulus-pallet-solo-to-para", "cumulus-pallet-weight-reclaim", "cumulus-pallet-xcm", "cumulus-pallet-xcmp-queue", "cumulus-ping", "cumulus-primitives-aura", "cumulus-primitives-core", "cumulus-primitives-parachain-inherent", "cumulus-primitives-proof-size-hostfunction", "cumulus-primitives-storage-weight-reclaim", "cumulus-primitives-timestamp", "cumulus-primitives-utility", "frame-benchmarking", "frame-benchmarking-pallet-pov", "frame-election-provider-solution-type", "frame-election-provider-support", "frame-executive", "frame-metadata-hash-extension", "frame-support", "frame-support-procedural", "frame-support-procedural-tools-derive", "frame-system", "frame-system-benchmarking", "frame-system-rpc-runtime-api", "frame-try-runtime", "pallet-alliance", "pallet-asset-conversion", "pallet-asset-conversion-ops", "pallet-asset-conversion-tx-payment", "pallet-asset-rate", "pallet-asset-rewards", "pallet-asset-tx-payment", "pallet-assets", "pallet-assets-freezer", "pallet-atomic-swap", "pallet-aura", "pallet-authority-discovery", "pallet-authorship", "pallet-babe", "pallet-bags-list", "pallet-balances", "pallet-beefy", "pallet-beefy-mmr", "pallet-bounties", "pallet-bridge-grandpa", "pallet-bridge-messages", "pallet-bridge-parachains", "pallet-bridge-relayers", "pallet-broker", "pallet-child-bounties", "pallet-collator-selection", "pallet-collective", "pallet-collective-content", "pallet-contracts", "pallet-contracts-proc-macro", "pallet-contracts-uapi", "pallet-conviction-voting", "pallet-core-fellowship", "pallet-delegated-staking", "pallet-democracy", "pallet-dev-mode", "pallet-election-provider-multi-phase", "pallet-election-provider-support-benchmarking", "pallet-elections-phragmen", "pallet-fast-unstake", "pallet-glutton", "pallet-grandpa", "pallet-identity", "pallet-im-online", "pallet-indices", "pallet-insecure-randomness-collective-flip", "pallet-lottery", "pallet-membership", "pallet-message-queue", "pallet-migrations", "pallet-mixnet", "pallet-mmr", "pallet-multisig", "pallet-nft-fractionalization", "pallet-nfts", "pallet-nfts-runtime-api", "pallet-nis", "pallet-node-authorization", "pallet-nomination-pools", "pallet-nomination-pools-benchmarking", "pallet-nomination-pools-runtime-api", "pallet-offences", "pallet-offences-benchmarking", "pallet-paged-list", "pallet-parameters", "pallet-preimage", "pallet-proxy", "pallet-ranked-collective", "pallet-recovery", "pallet-referenda", "pallet-remark", "pallet-revive", "pallet-revive-proc-macro", "pallet-revive-uapi", "pallet-root-offences", "pallet-root-testing", "pallet-safe-mode", "pallet-salary", "pallet-scheduler", "pallet-scored-pool", "pallet-session", "pallet-session-benchmarking", "pallet-skip-feeless-payment", "pallet-society", "pallet-staking", "pallet-staking-reward-curve", "pallet-staking-reward-fn", "pallet-staking-runtime-api", "pallet-state-trie-migration", "pallet-statement", "pallet-sudo", "pallet-timestamp", "pallet-tips", "pallet-transaction-payment", "pallet-transaction-payment-rpc-runtime-api", "pallet-transaction-storage", "pallet-treasury", "pallet-tx-pause", "pallet-uniques", "pallet-utility", "pallet-verify-signature", "pallet-vesting", "pallet-whitelist", "pallet-xcm", "pallet-xcm-benchmarks", "pallet-xcm-bridge-hub", "pallet-xcm-bridge-hub-router", "parachains-common", "polkadot-core-primitives", "polkadot-parachain-primitives", "polkadot-primitives", "polkadot-runtime-common", "polkadot-runtime-metrics", "polkadot-runtime-parachains", "polkadot-sdk-frame", "sc-chain-spec-derive", "sc-tracing-proc-macro", "slot-range-helper", "snowbridge-beacon-primitives", "snowbridge-core", "snowbridge-ethereum", "snowbridge-outbound-queue-merkle-tree", "snowbridge-outbound-queue-runtime-api", "snowbridge-pallet-ethereum-client", "snowbridge-pallet-ethereum-client-fixtures", "snowbridge-pallet-inbound-queue", "snowbridge-pallet-inbound-queue-fixtures", "snowbridge-pallet-outbound-queue", "snowbridge-pallet-system", "snowbridge-router-primitives", "snowbridge-runtime-common", "snowbridge-system-runtime-api", "sp-api", "sp-api-proc-macro", "sp-application-crypto", "sp-arithmetic", "sp-authority-discovery", "sp-block-builder", "sp-consensus-aura", "sp-consensus-babe", "sp-consensus-beefy", "sp-consensus-grandpa", "sp-consensus-pow", "sp-consensus-slots", "sp-core", "sp-crypto-ec-utils", "sp-crypto-hashing", "sp-crypto-hashing-proc-macro", "sp-debug-derive", "sp-externalities", "sp-genesis-builder", "sp-inherents", "sp-io", "sp-keyring", "sp-keystore", "sp-metadata-ir", "sp-mixnet", "sp-mmr-primitives", "sp-npos-elections", "sp-offchain", "sp-runtime", "sp-runtime-interface", "sp-runtime-interface-proc-macro", "sp-session", "sp-staking", "sp-state-machine", "sp-statement-store", "sp-std", "sp-storage", "sp-timestamp", "sp-tracing", "sp-transaction-pool", "sp-transaction-storage-proof", "sp-trie", "sp-version", "sp-version-proc-macro", "sp-wasm-interface", "sp-weights", "staging-parachain-info", "staging-xcm", "staging-xcm-builder", "staging-xcm-executor", "substrate-bip39", "testnet-parachains-constants", "tracing-gum-proc-macro", "xcm-procedural", "xcm-runtime-apis"]
+runtime-full = ["assets-common", "binary-merkle-tree", "bp-header-chain", "bp-messages", "bp-parachains", "bp-polkadot", "bp-polkadot-core", "bp-relayers", "bp-runtime", "bp-test-utils", "bp-xcm-bridge-hub", "bp-xcm-bridge-hub-router", "bridge-hub-common", "bridge-runtime-common", "cumulus-pallet-aura-ext", "cumulus-pallet-dmp-queue", "cumulus-pallet-parachain-system", "cumulus-pallet-parachain-system-proc-macro", "cumulus-pallet-session-benchmarking", "cumulus-pallet-solo-to-para", "cumulus-pallet-weight-reclaim", "cumulus-pallet-xcm", "cumulus-pallet-xcmp-queue", "cumulus-ping", "cumulus-primitives-aura", "cumulus-primitives-core", "cumulus-primitives-parachain-inherent", "cumulus-primitives-proof-size-hostfunction", "cumulus-primitives-storage-weight-reclaim", "cumulus-primitives-timestamp", "cumulus-primitives-utility", "frame-benchmarking", "frame-benchmarking-pallet-pov", "frame-election-provider-solution-type", "frame-election-provider-support", "frame-executive", "frame-metadata-hash-extension", "frame-support", "frame-support-procedural", "frame-support-procedural-tools-derive", "frame-system", "frame-system-benchmarking", "frame-system-rpc-runtime-api", "frame-try-runtime", "pallet-alliance", "pallet-asset-conversion", "pallet-asset-conversion-ops", "pallet-asset-conversion-tx-payment", "pallet-asset-rate", "pallet-asset-rewards", "pallet-asset-tx-payment", "pallet-assets", "pallet-assets-freezer", "pallet-atomic-swap", "pallet-aura", "pallet-authority-discovery", "pallet-authorship", "pallet-babe", "pallet-bags-list", "pallet-balances", "pallet-beefy", "pallet-beefy-mmr", "pallet-bounties", "pallet-bridge-grandpa", "pallet-bridge-messages", "pallet-bridge-parachains", "pallet-bridge-relayers", "pallet-broker", "pallet-child-bounties", "pallet-collator-selection", "pallet-collective", "pallet-collective-content", "pallet-contracts", "pallet-contracts-proc-macro", "pallet-contracts-uapi", "pallet-conviction-voting", "pallet-core-fellowship", "pallet-delegated-staking", "pallet-democracy", "pallet-dev-mode", "pallet-election-provider-multi-block", "pallet-election-provider-multi-phase", "pallet-election-provider-support-benchmarking", "pallet-elections-phragmen", "pallet-fast-unstake", "pallet-glutton", "pallet-grandpa", "pallet-identity", "pallet-im-online", "pallet-indices", "pallet-insecure-randomness-collective-flip", "pallet-lottery", "pallet-membership", "pallet-message-queue", "pallet-migrations", "pallet-mixnet", "pallet-mmr", "pallet-multisig", "pallet-nft-fractionalization", "pallet-nfts", "pallet-nfts-runtime-api", "pallet-nis", "pallet-node-authorization", "pallet-nomination-pools", "pallet-nomination-pools-benchmarking", "pallet-nomination-pools-runtime-api", "pallet-offences", "pallet-offences-benchmarking", "pallet-paged-list", "pallet-parameters", "pallet-preimage", "pallet-proxy", "pallet-ranked-collective", "pallet-recovery", "pallet-referenda", "pallet-remark", "pallet-revive", "pallet-revive-proc-macro", "pallet-revive-uapi", "pallet-root-offences", "pallet-root-testing", "pallet-safe-mode", "pallet-salary", "pallet-scheduler", "pallet-scored-pool", "pallet-session", "pallet-session-benchmarking", "pallet-skip-feeless-payment", "pallet-society", "pallet-staking", "pallet-staking-reward-curve", "pallet-staking-reward-fn", "pallet-staking-runtime-api", "pallet-state-trie-migration", "pallet-statement", "pallet-sudo", "pallet-timestamp", "pallet-tips", "pallet-transaction-payment", "pallet-transaction-payment-rpc-runtime-api", "pallet-transaction-storage", "pallet-treasury", "pallet-tx-pause", "pallet-uniques", "pallet-utility", "pallet-verify-signature", "pallet-vesting", "pallet-whitelist", "pallet-xcm", "pallet-xcm-benchmarks", "pallet-xcm-bridge-hub", "pallet-xcm-bridge-hub-router", "parachains-common", "polkadot-core-primitives", "polkadot-parachain-primitives", "polkadot-primitives", "polkadot-runtime-common", "polkadot-runtime-metrics", "polkadot-runtime-parachains", "polkadot-sdk-frame", "sc-chain-spec-derive", "sc-tracing-proc-macro", "slot-range-helper", "snowbridge-beacon-primitives", "snowbridge-core", "snowbridge-ethereum", "snowbridge-outbound-queue-merkle-tree", "snowbridge-outbound-queue-runtime-api", "snowbridge-pallet-ethereum-client", "snowbridge-pallet-ethereum-client-fixtures", "snowbridge-pallet-inbound-queue", "snowbridge-pallet-inbound-queue-fixtures", "snowbridge-pallet-outbound-queue", "snowbridge-pallet-system", "snowbridge-router-primitives", "snowbridge-runtime-common", "snowbridge-system-runtime-api", "sp-api", "sp-api-proc-macro", "sp-application-crypto", "sp-arithmetic", "sp-authority-discovery", "sp-block-builder", "sp-consensus-aura", "sp-consensus-babe", "sp-consensus-beefy", "sp-consensus-grandpa", "sp-consensus-pow", "sp-consensus-slots", "sp-core", "sp-crypto-ec-utils", "sp-crypto-hashing", "sp-crypto-hashing-proc-macro", "sp-debug-derive", "sp-externalities", "sp-genesis-builder", "sp-inherents", "sp-io", "sp-keyring", "sp-keystore", "sp-metadata-ir", "sp-mixnet", "sp-mmr-primitives", "sp-npos-elections", "sp-offchain", "sp-runtime", "sp-runtime-interface", "sp-runtime-interface-proc-macro", "sp-session", "sp-staking", "sp-state-machine", "sp-statement-store", "sp-std", "sp-storage", "sp-timestamp", "sp-tracing", "sp-transaction-pool", "sp-transaction-storage-proof", "sp-trie", "sp-version", "sp-version-proc-macro", "sp-wasm-interface", "sp-weights", "staging-parachain-info", "staging-xcm", "staging-xcm-builder", "staging-xcm-executor", "substrate-bip39", "testnet-parachains-constants", "tracing-gum-proc-macro", "xcm-procedural", "xcm-runtime-apis"]
runtime = [
"frame-benchmarking",
"frame-benchmarking-pallet-pov",
@@ -1028,6 +1031,11 @@ default-features = false
optional = true
path = "../substrate/frame/examples/dev-mode"
+[dependencies.pallet-election-provider-multi-block]
+default-features = false
+optional = true
+path = "../substrate/frame/election-provider-multi-block"
+
[dependencies.pallet-election-provider-multi-phase]
default-features = false
optional = true
diff --git a/umbrella/src/lib.rs b/umbrella/src/lib.rs
index a132f16a2c3..79a4ed9960e 100644
--- a/umbrella/src/lib.rs
+++ b/umbrella/src/lib.rs
@@ -443,6 +443,10 @@ pub use pallet_democracy;
#[cfg(feature = "pallet-dev-mode")]
pub use pallet_dev_mode;
+/// PALLET multi phase+block election providers.
+#[cfg(feature = "pallet-election-provider-multi-block")]
+pub use pallet_election_provider_multi_block;
+
/// PALLET two phase election providers.
#[cfg(feature = "pallet-election-provider-multi-phase")]
pub use pallet_election_provider_multi_phase;
--
GitLab