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  1. Mar 05, 2024
  2. Mar 04, 2024
    • dependabot[bot]'s avatar
      Bump mio from 0.8.8 to 0.8.11 (#3569) · ec30d2f5
      dependabot[bot] authored
      
      
      Bumps [mio](https://github.com/tokio-rs/mio) from 0.8.8 to 0.8.11.
      <details>
      <summary>Changelog</summary>
      <p><em>Sourced from <a
      href="https://github.com/tokio-rs/mio/blob/master/CHANGELOG.md">mio's
      changelog</a>.</em></p>
      <blockquote>
      <h1>0.8.11</h1>
      <ul>
      <li>Fix receiving IOCP events after deregistering a Windows named pipe
      (<a
      href="https://redirect.github.com/tokio-rs/mio/pull/1760">tokio-rs/mio#1760</a>,
      backport pr:
      <a
      href="https://redirect.github.com/tokio-rs/mio/pull/1761">tokio-rs/mio#1761</a>).</li>
      </ul>
      <h1>0.8.10</h1>
      <h2>Added</h2>
      <ul>
      <li>Solaris support
      (<a
      href="https://redirect.github.com/tokio-rs/mio/pull/1724">tokio-rs/mio#1724</a>).</li>
      </ul>
      <h1>0.8.9</h1>
      <h2>Added</h2>
      <ul>
      <li>ESP-IDF framework support
      (<a
      href="https://redirect.github.com/tokio-rs/mio/pull/1692">tokio-rs/mio#1692</a>).</li>
      <li>AIX operating system support
      (<a
      href="https://redirect.github.com/tokio-rs/mio/pull/1704">tokio-rs/mio#1704</a>).</li>
      <li>Vita support
      (<a
      href="https://redirect.github.com/tokio-rs/mio/pull/1721">tokio-rs/mio#1721</a>).</li>
      <li><code>{UnixListener,UnixStream}:bind_addr</code>
      (<a
      href="https://redirect.github.com/tokio-rs/mio/pull/1630">tokio-rs/mio#1630</a>).</li>
      <li><code>mio_unsupported_force_poll_poll</code> and
      <code>mio_unsupported_force_waker_pipe</code>
      <strong>unsupported</strong> configuration flags to force a specific
      poll or waker
      implementation
      (<a
      href="https://redirect.github.com/tokio-rs/mio/pull/1684">tokio-rs/mio#1684</a>,
      <a
      href="https://redirect.github.com/tokio-rs/mio/pull/1685">tokio-rs/mio#1685</a>,
      <a
      href="https://redirect.github.com/tokio-rs/mio/pull/1692">tokio-rs/mio#1692</a>).</li>
      </ul>
      <h2>Fixed</h2>
      <ul>
      <li>The <code>pipe(2)</code> based waker (swapped file descriptors)
      (<a
      href="https://redirect.github.com/tokio-rs/mio/pull/1722">tokio-rs/mio#1722</a>).</li>
      <li>The duplicate waker check to work correctly with cloned
      <code>Registry</code>s.
      (<a
      href="https://redirect.github.com/tokio-rs/mio/pull/1706">tokio-rs/mio#1706</a>).</li>
      </ul>
      </blockquote>
      </details>
      <details>
      <summary>Commits</summary>
      <ul>
      <li><a
      href="https://github.com/tokio-rs/mio/commit/0328bdef900b6396b8d00d33c825cd8af748553d"><code>0328bde</code></a>
      Release v0.8.11</li>
      <li><a
      href="https://github.com/tokio-rs/mio/commit/708449851283b57eb6f514c8f289b66e982720b3"><code>7084498</code></a>
      Fix warnings</li>
      <li><a
      href="https://github.com/tokio-rs/mio/commit/90d4fe00df870acd3d38f3dc4face9aacab8fbb9"><code>90d4fe0</code></a>
      named-pipes: fix receiving IOCP events after deregister</li>
      <li><a
      href="https://github.com/tokio-rs/mio/commit/c710a307f8627c4d63ac1003252aa45175e08399"><code>c710a30</code></a>
      Add v0.8.x to the CI</li>
      <li><a
      href="https://github.com/tokio-rs/mio/commit/c29e21c244b2b835e8b3e015b92c708c33c7d70a"><code>c29e21c</code></a>
      Release v0.8.10</li>
      <li><a
      href="https://github.com/tokio-rs/mio/commit/f6a20da1c81c2d56a78bc6f6832b9904b9215914"><code>f6a20da</code></a>
      Add Solaris operating system support (<a
      href="https://redirect.github.com/tokio-rs/mio/issues/1724">#1724</a>)</li>
      <li><a
      href="https://github.com/tokio-rs/mio/commit/e80c3b21b59b92238f4c8c331fcfc4a71508d1c5"><code>e80c3b2</code></a>
      Release v0.8.9</li>
      <li><a
      href="https://github.com/tokio-rs/mio/commit/862786bbbf719886be55631c0d150d4813a9a1b6"><code>862786b</code></a>
      Fix importing of IoSourceState</li>
      <li><a
      href="https://github.com/tokio-rs/mio/commit/40348728e4f06f5e150783d8f1559ee974e5e834"><code>4034872</code></a>
      Add support for vita target</li>
      <li><a
      href="https://github.com/tokio-rs/mio/commit/8eb4010a92bede550850e177d3dd7c4c76eb90ba"><code>8eb4010</code></a>
      Fix receiver and sender fd in pipe based waker</li>
      <li>Additional commits viewable in <a
      href="https://github.com/tokio-rs/mio/compare/v0.8.8...v0.8.11">compare
      view</a></li>
      </ul>
      </details>
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      ec30d2f5
    • PG Herveou's avatar
      Contracts: Fix typo (#3563) · 0708cf38
      PG Herveou authored
      0708cf38
    • Gavin Wood's avatar
      FRAME: Create `TransactionExtension` as a replacement for `SignedExtension` (#2280) · fd5f9292
      Gavin Wood authored
      
      
      Closes #2160
      
      First part of [Extrinsic
      Horizon](https://github.com/paritytech/polkadot-sdk/issues/2415)
      
      Introduces a new trait `TransactionExtension` to replace
      `SignedExtension`. Introduce the idea of transactions which obey the
      runtime's extensions and have according Extension data (né Extra data)
      yet do not have hard-coded signatures.
      
      Deprecate the terminology of "Unsigned" when used for
      transactions/extrinsics owing to there now being "proper" unsigned
      transactions which obey the extension framework and "old-style" unsigned
      which do not. Instead we have __*General*__ for the former and
      __*Bare*__ for the latter. (Ultimately, the latter will be phased out as
      a type of transaction, and Bare will only be used for Inherents.)
      
      Types of extrinsic are now therefore:
      - Bare (no hardcoded signature, no Extra data; used to be known as
      "Unsigned")
      - Bare transactions (deprecated): Gossiped, validated with
      `ValidateUnsigned` (deprecated) and the `_bare_compat` bits of
      `TransactionExtension` (deprecated).
        - Inherents: Not gossiped, validated with `ProvideInherent`.
      - Extended (Extra data): Gossiped, validated via `TransactionExtension`.
        - Signed transactions (with a hardcoded signature).
        - General transactions (without a hardcoded signature).
      
      `TransactionExtension` differs from `SignedExtension` because:
      - A signature on the underlying transaction may validly not be present.
      - It may alter the origin during validation.
      - `pre_dispatch` is renamed to `prepare` and need not contain the checks
      present in `validate`.
      - `validate` and `prepare` is passed an `Origin` rather than a
      `AccountId`.
      - `validate` may pass arbitrary information into `prepare` via a new
      user-specifiable type `Val`.
      - `AdditionalSigned`/`additional_signed` is renamed to
      `Implicit`/`implicit`. It is encoded *for the entire transaction* and
      passed in to each extension as a new argument to `validate`. This
      facilitates the ability of extensions to acts as underlying crypto.
      
      There is a new `DispatchTransaction` trait which contains only default
      function impls and is impl'ed for any `TransactionExtension` impler. It
      provides several utility functions which reduce some of the tedium from
      using `TransactionExtension` (indeed, none of its regular functions
      should now need to be called directly).
      
      Three transaction version discriminator ("versions") are now
      permissible:
      - 0b000000100: Bare (used to be called "Unsigned"): contains Signature
      or Extra (extension data). After bare transactions are no longer
      supported, this will strictly identify an Inherents only.
      - 0b100000100: Old-school "Signed" Transaction: contains Signature and
      Extra (extension data).
      - 0b010000100: New-school "General" Transaction: contains Extra
      (extension data), but no Signature.
      
      For the New-school General Transaction, it becomes trivial for authors
      to publish extensions to the mechanism for authorizing an Origin, e.g.
      through new kinds of key-signing schemes, ZK proofs, pallet state,
      mutations over pre-authenticated origins or any combination of the
      above.
      
      ## Code Migration
      
      ### NOW: Getting it to build
      
      Wrap your `SignedExtension`s in `AsTransactionExtension`. This should be
      accompanied by renaming your aggregate type in line with the new
      terminology. E.g. Before:
      
      ```rust
      /// The SignedExtension to the basic transaction logic.
      pub type SignedExtra = (
      	/* snip */
      	MySpecialSignedExtension,
      );
      /// Unchecked extrinsic type as expected by this runtime.
      pub type UncheckedExtrinsic =
      	generic::UncheckedExtrinsic<Address, RuntimeCall, Signature, SignedExtra>;
      ```
      
      After:
      
      ```rust
      /// The extension to the basic transaction logic.
      pub type TxExtension = (
      	/* snip */
      	AsTransactionExtension<MySpecialSignedExtension>,
      );
      /// Unchecked extrinsic type as expected by this runtime.
      pub type UncheckedExtrinsic =
      	generic::UncheckedExtrinsic<Address, RuntimeCall, Signature, TxExtension>;
      ```
      
      You'll also need to alter any transaction building logic to add a
      `.into()` to make the conversion happen. E.g. Before:
      
      ```rust
      fn construct_extrinsic(
      		/* snip */
      ) -> UncheckedExtrinsic {
      	let extra: SignedExtra = (
      		/* snip */
      		MySpecialSignedExtension::new(/* snip */),
      	);
      	let payload = SignedPayload::new(call.clone(), extra.clone()).unwrap();
      	let signature = payload.using_encoded(|e| sender.sign(e));
      	UncheckedExtrinsic::new_signed(
      		/* snip */
      		Signature::Sr25519(signature),
      		extra,
      	)
      }
      ```
      
      After:
      
      ```rust
      fn construct_extrinsic(
      		/* snip */
      ) -> UncheckedExtrinsic {
      	let tx_ext: TxExtension = (
      		/* snip */
      		MySpecialSignedExtension::new(/* snip */).into(),
      	);
      	let payload = SignedPayload::new(call.clone(), tx_ext.clone()).unwrap();
      	let signature = payload.using_encoded(|e| sender.sign(e));
      	UncheckedExtrinsic::new_signed(
      		/* snip */
      		Signature::Sr25519(signature),
      		tx_ext,
      	)
      }
      ```
      
      ### SOON: Migrating to `TransactionExtension`
      
      Most `SignedExtension`s can be trivially converted to become a
      `TransactionExtension`. There are a few things to know.
      
      - Instead of a single trait like `SignedExtension`, you should now
      implement two traits individually: `TransactionExtensionBase` and
      `TransactionExtension`.
      - Weights are now a thing and must be provided via the new function `fn
      weight`.
      
      #### `TransactionExtensionBase`
      
      This trait takes care of anything which is not dependent on types
      specific to your runtime, most notably `Call`.
      
      - `AdditionalSigned`/`additional_signed` is renamed to
      `Implicit`/`implicit`.
      - Weight must be returned by implementing the `weight` function. If your
      extension is associated with a pallet, you'll probably want to do this
      via the pallet's existing benchmarking infrastructure.
      
      #### `TransactionExtension`
      
      Generally:
      - `pre_dispatch` is now `prepare` and you *should not reexecute the
      `validate` functionality in there*!
      - You don't get an account ID any more; you get an origin instead. If
      you need to presume an account ID, then you can use the trait function
      `AsSystemOriginSigner::as_system_origin_signer`.
      - You get an additional ticket, similar to `Pre`, called `Val`. This
      defines data which is passed from `validate` into `prepare`. This is
      important since you should not be duplicating logic from `validate` to
      `prepare`, you need a way of passing your working from the former into
      the latter. This is it.
      - This trait takes two type parameters: `Call` and `Context`. `Call` is
      the runtime call type which used to be an associated type; you can just
      move it to become a type parameter for your trait impl. `Context` is not
      currently used and you can safely implement over it as an unbounded
      type.
      - There's no `AccountId` associated type any more. Just remove it.
      
      Regarding `validate`:
      - You get three new parameters in `validate`; all can be ignored when
      migrating from `SignedExtension`.
      - `validate` returns a tuple on success; the second item in the tuple is
      the new ticket type `Self::Val` which gets passed in to `prepare`. If
      you use any information extracted during `validate` (off-chain and
      on-chain, non-mutating) in `prepare` (on-chain, mutating) then you can
      pass it through with this. For the tuple's last item, just return the
      `origin` argument.
      
      Regarding `prepare`:
      - This is renamed from `pre_dispatch`, but there is one change:
      - FUNCTIONALITY TO VALIDATE THE TRANSACTION NEED NOT BE DUPLICATED FROM
      `validate`!!
      - (This is different to `SignedExtension` which was required to run the
      same checks in `pre_dispatch` as in `validate`.)
      
      Regarding `post_dispatch`:
      - Since there are no unsigned transactions handled by
      `TransactionExtension`, `Pre` is always defined, so the first parameter
      is `Self::Pre` rather than `Option<Self::Pre>`.
      
      If you make use of `SignedExtension::validate_unsigned` or
      `SignedExtension::pre_dispatch_unsigned`, then:
      - Just use the regular versions of these functions instead.
      - Have your logic execute in the case that the `origin` is `None`.
      - Ensure your transaction creation logic creates a General Transaction
      rather than a Bare Transaction; this means having to include all
      `TransactionExtension`s' data.
      - `ValidateUnsigned` can still be used (for now) if you need to be able
      to construct transactions which contain none of the extension data,
      however these will be phased out in stage 2 of the Transactions Horizon,
      so you should consider moving to an extension-centric design.
      
      ## TODO
      
      - [x] Introduce `CheckSignature` impl of `TransactionExtension` to
      ensure it's possible to have crypto be done wholly in a
      `TransactionExtension`.
      - [x] Deprecate `SignedExtension` and move all uses in codebase to
      `TransactionExtension`.
        - [x] `ChargeTransactionPayment`
        - [x] `DummyExtension`
        - [x] `ChargeAssetTxPayment` (asset-tx-payment)
        - [x] `ChargeAssetTxPayment` (asset-conversion-tx-payment)
        - [x] `CheckWeight`
        - [x] `CheckTxVersion`
        - [x] `CheckSpecVersion`
        - [x] `CheckNonce`
        - [x] `CheckNonZeroSender`
        - [x] `CheckMortality`
        - [x] `CheckGenesis`
        - [x] `CheckOnlySudoAccount`
        - [x] `WatchDummy`
        - [x] `PrevalidateAttests`
        - [x] `GenericSignedExtension`
        - [x] `SignedExtension` (chain-polkadot-bulletin)
        - [x] `RefundSignedExtensionAdapter`
      - [x] Implement `fn weight` across the board.
      - [ ] Go through all pre-existing extensions which assume an account
      signer and explicitly handle the possibility of another kind of origin.
      - [x] `CheckNonce` should probably succeed in the case of a non-account
      origin.
      - [x] `CheckNonZeroSender` should succeed in the case of a non-account
      origin.
      - [x] `ChargeTransactionPayment` and family should fail in the case of a
      non-account origin.
        - [ ] 
      - [x] Fix any broken tests.
      
      ---------
      
      Signed-off-by: default avatargeorgepisaltu <[email protected]>
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      fd5f9292
  3. Mar 03, 2024
  4. Mar 02, 2024
    • gupnik's avatar
      Remove `as frame_system::DefaultConfig` from the required syntax in `derive_impl` (#3505) · cdc8d197
      gupnik authored
      Step in https://github.com/paritytech/polkadot-sdk/issues/171
      
      This PR removes the need to specify `as [disambiguation_path]` for cases
      where the trait definition resides within the same scope as default impl
      path.
      
      For example, in the following macro invocation
      ```rust
      #[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
      impl frame_system::Config for Runtime {
         ...
      }
      ```
      the trait `DefaultConfig` lies within the `frame_system` scope and
      `TestDefaultConfig` impls the `DefaultConfig` trait. Using this
      information, we can compute the disambiguation path internally, thus
      removing the need of an explicit specification.
      
      In cases where the trait lies outside this scope, we would still need to
      specify it explicitly, but this should take care of most (if not all)
      uses of `derive_impl` within FRAME's context.
      cdc8d197
  5. Mar 01, 2024
    • Alin Dima's avatar
      provisioner: allow multiple cores assigned to the same para (#3233) · 62b78a16
      Alin Dima authored
      https://github.com/paritytech/polkadot-sdk/issues/3130
      
      builds on top of https://github.com/paritytech/polkadot-sdk/pull/3160
      
      Processes the availability cores and builds a record of how many
      candidates it should request from prospective-parachains and their
      predecessors.
      Tries to supply as many candidates as the runtime can back. Note that
      the runtime changes to back multiple candidates per para are not yet
      done, but this paves the way for it.
      
      The following backing/inclusion policy is assumed:
      1. the runtime will never back candidates of the same para which don't
      form a chain with the already backed candidates. Even if the others are
      still pending availability. We're optimistic that they won't time out
      and we don't want to back parachain forks (as the complexity would be
      huge).
      2. if a candidate is timed out of the core before being included, all of
      its successors occupying a core will be evicted.
      3. only the candidates which are made available and form a chain
      starting from the on-chain para head may be included/enacted and cleared
      from the cores. In other words, if para head is at A and the cores are
      occupied by B->C->D, and B and D are made available, only B will be
      included and its core cleared. C and D will remain on the cores awaiting
      for C to be made available or timed out. As point (2) above already
      says, if C is timed out, D will also be dropped.
      4. The runtime will deduplicate candidates which form a cycle. For
      example if the provisioner supplies candidates A->B->A, the runtime will
      only back A (as the state output will be the same)
      
      Note that if a candidate is timed out, we don't guarantee that in the
      next relay chain block the block author will be able to fill all of the
      timed out cores of the para. That increases complexity by a lot.
      Instead, the provisioner will supply N candidates where N is the number
      of candidates timed out, but doesn't include their successors which will
      be also deleted by the runtime. This'll be backfilled in the next relay
      chain block.
      
      Adjacent changes:
      - Also fixes: https://github.com/paritytech/polkadot-sdk/issues/3141
      - For non prospective-parachains, don't supply multiple candidates per
      para (we can't have elastic scaling without prospective parachains
      enabled). paras_inherent should already sanitise this input but it's
      more efficient this way.
      
      Note: all of these changes are backwards-compatible with the
      non-elastic-scaling scenario (one core per para).
      62b78a16
    • Andrei Eres's avatar
      subsystem-bench: add regression tests for availability read and write (#3311) · f0e589d7
      Andrei Eres authored
      
      
      ### What's been done
      - `subsystem-bench` has been split into two parts: a cli benchmark
      runner and a library.
      - The cli runner is quite simple. It just allows us to run `.yaml` based
      test sequences. Now it should only be used to run benchmarks during
      development.
      - The library is used in the cli runner and in regression tests. Some
      code is changed to make the library independent of the runner.
      - Added first regression tests for availability read and write that
      replicate existing test sequences.
      
      ### How we run regression tests
      - Regression tests are simply rust integration tests without the
      harnesses.
      - They should only be compiled under the `subsystem-benchmarks` feature
      to prevent them from running with other tests.
      - This doesn't work when running tests with `nextest` in CI, so
      additional filters have been added to the `nextest` runs.
      - Each benchmark run takes a different time in the beginning, so we
      "warm up" the tests until their CPU usage differs by only 1%.
      - After the warm-up, we run the benchmarks a few more times and compare
      the average with the exception using a precision.
      
      ### What is still wrong?
      - I haven't managed to set up approval voting tests. The spread of their
      results is too large and can't be narrowed down in a reasonable amount
      of time in the warm-up phase.
      - The tests start an unconfigurable prometheus endpoint inside, which
      causes errors because they use the same 9999 port. I disable it with a
      flag, but I think it's better to extract the endpoint launching outside
      the test, as we already do with `valgrind` and `pyroscope`. But we still
      use `prometheus` inside the tests.
      
      ### Future work
      * https://github.com/paritytech/polkadot-sdk/issues/3528
      * https://github.com/paritytech/polkadot-sdk/issues/3529
      * https://github.com/paritytech/polkadot-sdk/issues/3530
      * https://github.com/paritytech/polkadot-sdk/issues/3531
      
      ---------
      
      Co-authored-by: default avatarAlexander Samusev <[email protected]>
      f0e589d7
    • Xiliang Chen's avatar
      make SelfParaId a metadata constant (#3517) · 6f81a4a0
      Xiliang Chen authored
      expose para id via metadata
      
      #2116 is blocked by this
      6f81a4a0
    • Dmitry Markin's avatar
      Fix crash of synced parachain node run with `--sync=warp` (#3523) · a1b57a8c
      Dmitry Markin authored
      Fixes https://github.com/paritytech/polkadot-sdk/issues/3496.
      a1b57a8c
    • Egor_P's avatar
      [Backport] Node version and spec_version bumps and ordering of the prdoc files from 1.8.0 (#3508) · 59b26614
      Egor_P authored
      This PR backports Node version and `spec_version` bumps to `1.8.0` from
      the latest release and orders prdoc files related to it.
      59b26614
    • Francisco Aguirre's avatar
      Add `claim_assets` extrinsic to `pallet-xcm` (#3403) · 65088668
      Francisco Aguirre authored
      
      
      If an XCM execution fails or ends with leftover assets, these will be
      trapped.
      In order to claim them, a custom XCM has to be executed, with the
      `ClaimAsset` instruction.
      However, arbitrary XCM execution is not allowed everywhere yet and XCM
      itself is still not easy enough to use for users out there with trapped
      assets.
      This new extrinsic in `pallet-xcm` will allow these users to easily
      claim their assets, without concerning themselves with writing arbitrary
      XCMs.
      
      Part of fixing https://github.com/paritytech/polkadot-sdk/issues/3495
      
      ---------
      
      Co-authored-by: command-bot <>
      Co-authored-by: default avatarAdrian Catangiu <[email protected]>
      65088668
  6. Feb 29, 2024
  7. Feb 28, 2024
    • Alexandru Gheorghe's avatar
      Fixup multi-collator parachain transition to async backing (#3510) · 833bafdb
      Alexandru Gheorghe authored
      
      
      Fixing: 
      ```
      Verification failed for block 0x07bbf1e04121d70a4bdb21cc055132b53ac2390fa95c4d05497fc91b1e8bf7f5 received from (12D3KooWJzLd8skcAgA24EcJey7aJAhYctfUxWGjSP5Usk9wbpPZ): "Header 0x07bbf1e04121d70a4bdb21cc055132b53ac2390fa95c4d05497fc91b1e8bf7f5 rejected: too far in the future"   
      ```
      
      ---------
      
      Signed-off-by: default avatarAlexandru Gheorghe <[email protected]>
      Co-authored-by: default avatarDmitry Sinyavin <[email protected]>
      Co-authored-by: default avatars0me0ne-unkn0wn <[email protected]>
      Co-authored-by: default avatarBastian Köcher <[email protected]>
      833bafdb
    • Oliver Tale-Yazdi's avatar
      Multi-Block-Migrations, `poll` hook and new System callbacks (#1781) · eefd5fe4
      Oliver Tale-Yazdi authored
      
      
      This MR is the merge of
      https://github.com/paritytech/substrate/pull/14414 and
      https://github.com/paritytech/substrate/pull/14275. It implements
      [RFC#13](https://github.com/polkadot-fellows/RFCs/pull/13), closes
      https://github.com/paritytech/polkadot-sdk/issues/198.
      
      ----- 
      
      This Merge request introduces three major topicals:
      
      1. Multi-Block-Migrations
      1. New pallet `poll` hook for periodic service work
      1. Replacement hooks for `on_initialize` and `on_finalize` in cases
      where `poll` cannot be used
      
      and some more general changes to FRAME.  
      The changes for each topical span over multiple crates. They are listed
      in topical order below.
      
      # 1.) Multi-Block-Migrations
      
      Multi-Block-Migrations are facilitated by creating `pallet_migrations`
      and configuring `System::Config::MultiBlockMigrator` to point to it.
      Executive picks this up and triggers one step of the migrations pallet
      per block.
      The chain is in lockdown mode for as long as an MBM is ongoing.
      Executive does this by polling `MultiBlockMigrator::ongoing` and not
      allowing any transaction in a block, if true.
      
      A MBM is defined through trait `SteppedMigration`. A condensed version
      looks like this:
      ```rust
      /// A migration that can proceed in multiple steps.
      pub trait SteppedMigration {
      	type Cursor: FullCodec + MaxEncodedLen;
      	type Identifier: FullCodec + MaxEncodedLen;
      
      	fn id() -> Self::Identifier;
      
      	fn max_steps() -> Option<u32>;
      
      	fn step(
      		cursor: Option<Self::Cursor>,
      		meter: &mut WeightMeter,
      	) -> Result<Option<Self::Cursor>, SteppedMigrationError>;
      }
      ```
      
      `pallet_migrations` can be configured with an aggregated tuple of these
      migrations. It then starts to migrate them one-by-one on the next
      runtime upgrade.
      Two things are important here:
      - 1. Doing another runtime upgrade while MBMs are ongoing is not a good
      idea and can lead to messed up state.
      - 2. **Pallet Migrations MUST BE CONFIGURED IN `System::Config`,
      otherwise it is not used.**
      
      The pallet supports an `UpgradeStatusHandler` that can be used to notify
      external logic of upgrade start/finish (for example to pause XCM
      dispatch).
      
      Error recovery is very limited in the case that a migration errors or
      times out (exceeds its `max_steps`). Currently the runtime dev can
      decide in `FailedMigrationHandler::failed` how to handle this. One
      follow-up would be to pair this with the `SafeMode` pallet and enact
      safe mode when an upgrade fails, to allow governance to rescue the
      chain. This is currently not possible, since governance is not
      `Mandatory`.
      
      ## Runtime API
      
      - `Core`: `initialize_block` now returns `ExtrinsicInclusionMode` to
      inform the Block Author whether they can push transactions.
      
      ### Integration
      
      Add it to your runtime implementation of `Core` and `BlockBuilder`:
      ```patch
      diff --git a/runtime/src/lib.rs b/runtime/src/lib.rs
      @@ impl_runtime_apis! {
      	impl sp_block_builder::Core<Block> for Runtime {
      -		fn initialize_block(header: &<Block as BlockT>::Header) {
      +		fn initialize_block(header: &<Block as BlockT>::Header) -> RuntimeExecutiveMode {
      			Executive::initialize_block(header)
      		}
      
      		...
      	}
      ```
      
      # 2.) `poll` hook
      
      A new pallet hook is introduced: `poll`. `Poll` is intended to replace
      mostly all usage of `on_initialize`.
      The reason for this is that any code that can be called from
      `on_initialize` cannot be migrated through an MBM. Currently there is no
      way to statically check this; the implication is to use `on_initialize`
      as rarely as possible.
      Failing to do so can result in broken storage invariants.
      
      The implementation of the poll hook depends on the `Runtime API` changes
      that are explained above.
      
      # 3.) Hard-Deadline callbacks
      
      Three new callbacks are introduced and configured on `System::Config`:
      `PreInherents`, `PostInherents` and `PostTransactions`.
      These hooks are meant as replacement for `on_initialize` and
      `on_finalize` in cases where the code that runs cannot be moved to
      `poll`.
      The reason for this is to make the usage of HD-code (hard deadline) more
      explicit - again to prevent broken invariants by MBMs.
      
      # 4.) FRAME (general changes)
      
      ## `frame_system` pallet
      
      A new memorize storage item `InherentsApplied` is added. It is used by
      executive to track whether inherents have already been applied.
      Executive and can then execute the MBMs directly between inherents and
      transactions.
      
      The `Config` gets five new items:
      - `SingleBlockMigrations` this is the new way of configuring migrations
      that run in a single block. Previously they were defined as last generic
      argument of `Executive`. This shift is brings all central configuration
      about migrations closer into view of the developer (migrations that are
      configured in `Executive` will still work for now but is deprecated).
      - `MultiBlockMigrator` this can be configured to an engine that drives
      MBMs. One example would be the `pallet_migrations`. Note that this is
      only the engine; the exact MBMs are injected into the engine.
      - `PreInherents` a callback that executes after `on_initialize` but
      before inherents.
      - `PostInherents` a callback that executes after all inherents ran
      (including MBMs and `poll`).
      - `PostTransactions` in symmetry to `PreInherents`, this one is called
      before `on_finalize` but after all transactions.
      
      A sane default is to set all of these to `()`. Example diff suitable for
      any chain:
      ```patch
      @@ impl frame_system::Config for Test {
       	type MaxConsumers = ConstU32<16>;
      +	type SingleBlockMigrations = ();
      +	type MultiBlockMigrator = ();
      +	type PreInherents = ();
      +	type PostInherents = ();
      +	type PostTransactions = ();
       }
      ```
      
      An overview of how the block execution now looks like is here. The same
      graph is also in the rust doc.
      
      <details><summary>Block Execution Flow</summary>
      <p>
      
      ![Screenshot 2023-12-04 at 19 11
      29](https://github.com/paritytech/polkadot-sdk/assets/10380170/e88a80c4-ef11-4faa-8df5-8b33a724c054)
      
      </p>
      </details> 
      
      ## Inherent Order
      
      Moved to https://github.com/paritytech/polkadot-sdk/pull/2154
      
      ---------------
      
      
      ## TODO
      
      - [ ] Check that `try-runtime` still works
      - [ ] Ensure backwards compatibility with old Runtime APIs
      - [x] Consume weight correctly
      - [x] Cleanup
      
      ---------
      
      Signed-off-by: default avatarOliver Tale-Yazdi <[email protected]>
      Co-authored-by: default avatarLiam Aharon <[email protected]>
      Co-authored-by: default avatarJuan Girini <[email protected]>
      Co-authored-by: command-bot <>
      Co-authored-by: default avatarFrancisco Aguirre <[email protected]>
      Co-authored-by: default avatarGavin Wood <[email protected]>
      Co-authored-by: default avatarBastian Köcher <[email protected]>
      eefd5fe4
    • Clara van Staden's avatar
      Snowbridge - Extract Ethereum Chain ID (#3501) · 576681b8
      Clara van Staden authored
      While adding runtime tests to
      https://github.com/polkadot-fellows/runtimes/pull/130, I noticed the
      Ethereum chain ID was hardcoded. For Kusama + Polkadot, the Ethereum
      chain ID should 1 (Mainnet), whereas on Rococo it is 11155111 (Sepolia).
      
      This PR also updates the Snowbridge crates versions to the current
      versions on crates.io.
      
      ---------
      
      Co-authored-by: claravanstaden <Cats 4 life!>
      576681b8
    • maksimryndin's avatar
      PVF: re-preparing artifact on failed runtime construction (#3187) · 42613667
      maksimryndin authored
      
      
      resolve https://github.com/paritytech/polkadot-sdk/issues/3139
      
      - [x] use a distinguishable error for `execute_artifact`
      - [x] remove artifact in case of a `RuntimeConstruction` error during
      the execution
      - [x] augment the `validate_candidate_with_retry` of `ValidationBackend`
      with the case of retriable `RuntimeConstruction` error during the
      execution
      - [x] update the book
      (https://paritytech.github.io/polkadot-sdk/book/node/utility/pvf-host-and-workers.html#retrying-execution-requests)
      - [x] add a test
      - [x] run zombienet tests
      
      ---------
      
      Co-authored-by: default avatars0me0ne-unkn0wn <[email protected]>
      42613667
    • Kian Paimani's avatar
      Add documentation around FRAME Offchain workers (#3463) · 14530269
      Kian Paimani authored
      
      
      - deprecation companion:
      https://github.com/substrate-developer-hub/substrate-docs/pull/2136
      - inspired by
      https://substrate.stackexchange.com/questions/11058/how-can-i-create-ocw-that-wont-activates-every-block-but-will-activates-only-w/11060#11060
      
      ---------
      
      Co-authored-by: default avatarSergej Sakac <[email protected]>
      14530269
    • Oliver Tale-Yazdi's avatar
      [prdoc] Optional SemVer bumps and Docs (#3441) · f4eedceb
      Oliver Tale-Yazdi authored
      
      
      Changes:
      - Add an optional `bump` field to the crates in a prdoc.
      - Explain the cargo semver interpretation for <1 versions in the release
      doc.
      
      ---------
      
      Signed-off-by: default avatarOliver Tale-Yazdi <[email protected]>
      f4eedceb
    • Alexandru Vasile's avatar
      rpc-v2/tx/tests: Add transaction broadcast tests and check propagated tx status (#3193) · f1b2189e
      Alexandru Vasile authored
      
      
      This PR adds tests for the `transaction_broadcast` method.
      
      
      The testing needs to coordinate the following components:
      - The `TestApi` marks transactions as invalid and implements
      `ChainApi::validate_transaction`
      - this is what dictates if a transaction is valid or not and is called
      from within the `BasicPool`
      - The `BasicPool` which maintains the transactions and implements
      `submit_and_watch` needed by the tx broadcast to submit the transaction
      - The status of the transaction pool is exposed by mocking the BasicPool
      - The `ChainHeadMockClient` which mocks the
      `BlockchainEvents::import_notification_stream` needed by the tx
      broadcast to know to which blocks the transaction is submitted
      
      The following changes have been added to the substrate testing to
      accommodate this:
      - `TestApi` gets ` remove_invalid`, counterpart to `add_invalid` to
      ensure an invalid transaction can become valid again; as well as a
      priority setter for extrinsics
      - `BasicPool` test constructor is extended with options for the
      `PoolRotator`
      - this mechanism is needed because transactions are banned for 30mins
      (default) after they are declared invalid
        - testing bypasses this by providing a `Duration::ZERO`
      
      ### Testing Scenarios
      
      - Capture the status of the transaction as it is normally broadcasted
      - `transaction_stop` is valid while the transaction is in progress
      - A future transaction is handled when the dependencies are completed
      - Try to resubmit the transaction at a later block (currently invalid)
      - An invalid transaction status is propagated; the transaction is marked
      as temporarily banned; then the ban expires and transaction is
      resubmitted
        
      This builds on top of:
      https://github.com/paritytech/polkadot-sdk/pull/3079
      Part of: https://github.com/paritytech/polkadot-sdk/issues/3084
      
      cc @paritytech/subxt-team
      
      ---------
      
      Signed-off-by: default avatarAlexandru Vasile <[email protected]>
      Co-authored-by: default avatarJames Wilson <[email protected]>
      f1b2189e
    • Liam Aharon's avatar
      Runtime Upgrade ref docs and Single Block Migration example pallet (#1554) · 12ce4f7d
      Liam Aharon authored
      Closes https://github.com/paritytech/polkadot-sdk-docs/issues/55
      
      - Changes 'current storage version' terminology to less ambiguous
      'in-code storage version' (suggestion by @ggwpez
      
      )
      - Adds a new example pallet `pallet-example-single-block-migrations`
      - Adds a new reference doc to replace
      https://docs.substrate.io/maintain/runtime-upgrades/ (temporarily living
      in the pallet while we wait for developer hub PR to merge)
      - Adds documentation for the `storage_alias` macro
      - Improves `trait Hooks` docs 
      - Improves `trait GetStorageVersion` docs
      - Update the suggested patterns for using `VersionedMigration`, so that
      version unchecked migrations are never exported
      - Prevents accidental usage of version unchecked migrations in runtimes
      
      https://github.com/paritytech/substrate/pull/14421#discussion_r1255467895
      - Unversioned migration code is kept inside `mod version_unchecked`,
      versioned code is kept in `pub mod versioned`
      - It is necessary to use modules to limit visibility because the inner
      migration must be `pub`. See
      https://github.com/rust-lang/rust/issues/30905 and
      
      https://internals.rust-lang.org/t/lang-team-minutes-private-in-public-rules/4504/40
      for more.
      
      ### todo
      
      - [x] move to reference docs to proper place within sdk-docs (now that
      https://github.com/paritytech/polkadot-sdk/pull/2102 is merged)
      - [x] prdoc
      
      ---------
      
      Co-authored-by: default avatarKian Paimani <[email protected]>
      Co-authored-by: default avatarJuan <[email protected]>
      Co-authored-by: default avatarOliver Tale-Yazdi <[email protected]>
      Co-authored-by: command-bot <>
      Co-authored-by: default avatargupnik <[email protected]>
      12ce4f7d
    • maksimryndin's avatar
      Collator overseer builder unification (#3335) · 7ec0b874
      maksimryndin authored
      
      
      resolve https://github.com/paritytech/polkadot-sdk/issues/3116
      
      a follow-up on
      https://github.com/paritytech/polkadot-sdk/pull/3061#pullrequestreview-1847530265:
      
      - [x] reuse collator overseer builder for polkadot-node and collator
      - [x] run zombienet test (0001-parachains-smoke-test.toml)
      - [x] make wasm build errors more user-friendly for an easier problem
      detection when using different toolchains in Rust
      
      ---------
      
      Co-authored-by: default avatarordian <[email protected]>
      Co-authored-by: default avatars0me0ne-unkn0wn <[email protected]>
      7ec0b874
    • Liam Aharon's avatar
      Introduce storage attr macro `#[disable_try_decode_storage]` and set it on... · 95da6583
      Liam Aharon authored
      Introduce storage attr macro `#[disable_try_decode_storage]` and set it on `System::Events` and `ParachainSystem::HostConfiguration` (#3454)
      
      Closes https://github.com/paritytech/polkadot-sdk/issues/2560
      
      Allows marking storage items with `#[disable_try_decode_storage]`, and
      uses it with `System::Events`.
      
      Question: what's the recommended way to write a test for this? I
      couldn't find a test for similar existing macro `#[whitelist_storage]`.
      95da6583
  8. Feb 27, 2024
    • Petr Mensik's avatar
      Add Polkadotters bootnoders per IBP application (#3423) · 0cc9b900
      Petr Mensik authored
      Hey everyone,
      
      this PR will replace existing Polkadotters bootnodes for Polkadot,
      Kusama and Westend and add Paseo bootnode to the relay chain suite. At
      the same time, it will add new bootnodes for all the system parachains,
      including People on Westend. This PR is a part of our membership in the
      IBP, meaning that all the bootnodes are hosted on our hardware housed in
      the data center in Christchurch, New Zealand.
      All the bootnodes were tested with an empty chain spec file with the
      following command yielding 1 peer.
      
      The test commands used are as follows:
      ```
      ./polkadot --base-path /tmp/node --reserved-only --chain paseo --reserved-nodes "/dns/paseo.bootnodes.polkadotters.com/tcp/30540/wss/p2p/12D3KooWPbbFy4TefEGTRF5eTYhq8LEzc4VAHdNUVCbY4nAnhqPP"
      ./polkadot --base-path /tmp/node --reserved-only --chain westend --reserved-nodes "/dns/westend.bootnodes.polkadotters.com/tcp/30310/wss/p2p/12D3KooWHPHb64jXMtSRJDrYFATWeLnvChL8NtWVttY67DCH1eC5"
      ./polkadot --base-path /tmp/node --reserved-only --chain kusama --reserved-nodes "/dns/kusama.bootnodes.polkadotters.com/tcp/30313/wss/p2p/12D3KooWHB5rTeNkQdXNJ9ynvGz8Lpnmsctt7Tvp7mrYv6bcwbPG"
      ./polkadot --base-path /tmp/node --no-hardware-benchmarks --reserved-only --chain polkadot --reserved-nodes "/dns/polkadot.bootnodes.polkadotters.com/tcp/30316/wss/p2p/12D3KooWPAVUgBaBk6n8SztLrMk8ESByncbAfRKUdxY1nygb9zG3"
      ./polkadot-parachain --base-path /tmp/node --reserved-only --chain asset-hub-kusama --reserved-nodes "/dns/asset-hub-kusama.bootnodes.polkadotters.com/tcp/30513/wss/p2p/12D3KooWDpk7wVH7RgjErEvbvAZ2kY5VeaAwRJP5ojmn1e8b8UbU"
      ./polkadot-parachain --base-path /tmp/node --reserved-only --chain asset-hub-polkadot --reserved-nodes "/dns/asset-hub-polkadot.bootnodes.polkadotters.com/tcp/30510/wss/p2p/12D3KooWKbfY9a9oywxMJKiALmt7yhrdQkjXMtvxhhDDN23vG93R"
      ./polkadot-parachain --base-path /tmp/node --reserved-only --chain asset-hub-westend --reserved-nodes "/dns/asset-hub-westend.bootnodes.polkadotters.com/tcp/30516/wss/p2p/12D3KooWNFYysCqmojxqjjaTfD2VkWBNngfyUKWjcR4WFixfHNTk"
      ./polkadot-parachain --base-path /tmp/node --reserved-only --chain bridge-hub-kusama --reserved-nodes "/dns/bridge-hub-kusama.bootnodes.polkadotters.com/tcp/30522/wss/p2p/12D3KooWH3pucezRRS5esoYyzZsUkKWcPSByQxEvmM819QL1HPLV"
      ./polkadot-parachain --base-path /tmp/node --reserved-only --chain bridge-hub-kusama --reserved-nodes "/dns/bridge-hub-kusama.bootnodes.polkadotters.com/tcp/30522/wss/p2p/12D3KooWH3pucezRRS5esoYyzZsUkKWcPSByQxEvmM819QL1HPLV"
      ./polkadot-parachain --base-path /tmp/node --reserved-only --chain bridge-hub-westend --reserved-nodes "/dns/bridge-hub-westend.bootnodes.polkadotters.com/tcp/30525/wss/p2p/12D3KooWPkwgJofp4GeeRwNgXqkp2aFwdLkCWv3qodpBJLwK43Jj"
      ./polkadot-parachain --base-path /tmp/node --reserved-only --chain collectives-polkadot --reserved-nodes "/dns/collectives-polkadot.bootnodes.polkadotters.com/tcp/30528/wss/p2p/12D3KooWNohUjvJtGKUa8Vhy8C1ZBB5N8JATB6e7rdLVCioeb3ff"
      ./polkadot-parachain --base-path /tmp/node --reserved-only --chain collectives-westend --reserved-nodes "/dns/collectives-westend.bootnodes.polkadotters.com/tcp/30531/wss/p2p/12D3KooWAFkXNSBfyPduZVgfS7pj5NuVpbU8Ee5gHeF8wvos7Yqn"
      ./polkadot-parachain --base-path /tmp/node --reserved-only --chain people-westend --reserved-nodes "/dns/identity-westend.bootnodes.polkadotters.com/tcp/30534/wss/p2p/12D3KooWKr9San6KTM7REJ95cBaDoiciGcWnW8TTftEJgxGF5Ehb"
      ```
      
      Best regards,
      
      Petr, Polkadotters
      0cc9b900
    • Kian Paimani's avatar
      Add documentation around FRAME Origin (#3362) · 29369a4e
      Kian Paimani authored
      Does the following: 
      
      - Add a reference doc page named `frame_runtime_types`, which explains
      what types like `RuntimeOrigin`, `RuntimeCall` etc are.
      - On top of it, it adds a reference doc page called `frame_origin` which
      explains a few important patterns that we use around origins
      - And finally brushes up `#[frame::origin]` docs. 
      - Updates the theme, sidebar and favicon to look like: 
      
      <img width="1728" alt="Screenshot 2024-02-20 at 12 16 00"
      src="https://github.com/paritytech/polkadot-sdk/assets/5588131/6d60a16b-2081-411b-8869-43b91920cca9">
      
      
      All of this was inspired by
      https://substrate.stackexchange.com/questions/10992/how-do-you-find-the-public-key-for-the-medium-spender-track-origin/10993
      
      closes https://github.com/paritytech/polkadot-sdk-docs/issues/45
      closes https://github.com/paritytech/polkadot-sdk-docs/issues/43
      contributes / overlaps with
      https://github.com/paritytech/polkadot-sdk/pull/2638 cc @liamaharon
      
      
      deprecation companion:
      https://github.com/substrate-developer-hub/substrate-docs/pull/2131
      pba-content companion:
      https://github.com/Polkadot-Blockchain-Academy/pba-content/pull/977
      
      ---------
      
      Co-authored-by: default avatarRadha <[email protected]>
      Co-authored-by: default avatarSebastian Kunert <[email protected]>
      Co-authored-by: default avatarGonçalo Pestana <[email protected]>
      Co-authored-by: default avatarLiam Aharon <[email protected]>
      29369a4e
    • Serban Iorga's avatar
      Bridge zombienet tests: Check amount received at destination (#3490) · 2cdda0e6
      Serban Iorga authored
      Related to https://github.com/paritytech/polkadot-sdk/issues/3475
      2cdda0e6
    • Clara van Staden's avatar
      Snowbridge benchmark tests fix (#3424) · 94c54d50
      Clara van Staden authored
      When running `cargo test -p bridge-hub-rococo-runtime --features
      runtime-benchmarks`, two of the Snowbridge benchmark tests fails. The
      reason is that when the runtime-benchmarks feature is enabled, the
      `NoopMessageProcessor` message processor is used. The Snowbridge tests
      rely on the outbound messages to be processed using the message queue,
      so that we can check the expected nonce and block digest logs.
      
      This PR changes the conditional compilation to only use
      `NoopMessageProcessor` when compiling the executable to run benchmarks
      against, not when running tests.
      
      ---------
      
      Co-authored-by: claravanstaden <Cats 4 life!>
      94c54d50