* Pause Kademlia if too many connections

* Fix test

* Update client/network/src/discovery.rs

Co-Authored-By: Toralf Wittner <tw@dtex.org>

* Change the limit

Co-authored-by: Toralf Wittner <tw@dtex.org>

* Run offchain workers at particular hash, not number.

* Don't run if not new best.

* Don't run if not new best.

* Update client/service/src/builder.rs

Co-Authored-By: Nikolay Volf <nikvolf@gmail.com>

* Update client/service/src/builder.rs

Co-Authored-By: Nikolay Volf <nikvolf@gmail.com>

* Update client/service/src/builder.rs

Co-authored-by: Nikolay Volf <nikvolf@gmail.com>

* Don't expose `Benchmarking` host functions by default

* Fix tests

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>

* Make WASM browser thing compile

* Fix

* updated exit-future (github repo)

* Switch to broadcast crate

* Migrate client/cli

* Switch exit-future to modernize branch

* Small changes

* Switch to cargo version and fix fg tests

* fix basic-authorship

* Fix crash on grafana macro

* Fix grafana macro

* Switch node python version

* Disable record_metrics_slice in grafana macro on wasm

* Update client/grafana-data-source/src/lib.rs

* Revert "Update client/grafana-data-source/src/lib.rs"

This reverts commit 888009a8e0b7051bd4bfbbfdb0448bcf2e2aae93.

* Add wasm support for state machine

* Switch to my own libp2p version

* Revert "Switch to my own libp2p version"

This reverts commit ce613871b59264b3165b45c37943e6560240daa7.

* Revert "Add wasm support for state machine"

This reverts commit de7eaa0694d9534fc3b164621737968e9a6a7c5f.

* Add sc-browser

* Squash

* remove sc-browser

* Fix keystore on wasm

* stubs for removed functions to make env compatible with old runtimes

* Add test (that doesn't work)

* Fix build scripts

* Revert basic-authorship due to no panics

* Revert cli/informant

* Revert consensus

* revert offchain

* Update utils/browser/Cargo.toml

Co-Authored-By: Benjamin Kampmann <ben@gnunicorn.org>

* export console functions

* Add new chainspec

* Fix ws in chain spec

* revert chainspec

* Fix chainspec

* Use an Option<PathBuf> in keystore instead of cfg flags

* Remove crud

* Only use wasm-timer for instant and systemtime

* Remove telemetry changes

* Assuming this is ok

* Add a KeystoreConfig

* Add stubs back in

* Update libp2p

* Revert "Add stubs back in"

This reverts commit 4690cf1882aa0f99f7f00a58c4080c8aa9b77c36.

* Remove commented js again

* Bump kvdb-web version

* Fix cli

* Switch branch on futures-timer

* Fix tests

* Remove sc-client test build in check-web-wasm because there isn't a good way to build futures-timer with wasm-bindgen support in the build

* Remove more things ^^

* Switch branch on futures-timer back

* Put DB io stats behind a cfg flag

* Fix things

* Don't timeout transports on wasm

* Update branch of futures-timer and fix bad merge

* Spawn informant

* Fix network test

* Fix delay resets

* Changes

* Fix tests

* use wasm_timer for transaction pool

* Fixes

* Switch futures-timer to crates

* Only diagnose futures on native

* Fix sc-network-test tests

* Select log level in js

* Fix syncing ;^)

* Allow disabling colours in the informant

* Use OutputFormat enum for informant

* MallocSizeOf impl on transaction pool broke stuff because wasm_timer::Instant doesnt impl it so just revert the transaction pool to master

* Update futures-diagnose

* Revert "MallocSizeOf impl on transaction pool broke stuff because wasm_timer::Instant doesnt impl it so just revert the transaction pool to master"

This reverts commit baa4ffc94fd968b6660a2c17ba8113e06af15548.

* Pass whole chain spec in start_client

* Get Instant::now to work in transaction pool again

* Informant dep reordering

Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Svyatoslav Nikolsky <svyatonik@gmail.com>
Co-authored-by: Benjamin Kampmann <ben.kampmann@googlemail.com>
Co-authored-by: Demi Obenour <48690212+DemiMarie-parity@users.noreply.github.com>

* Starting

* closer

* Compiles!

* comments

* Create seperate mock

* Remove changes to test env

* Fix step calculation

* Add host function

* Add runtime api

* compiles

* Update to use offchain timestamp

* Gives a result

* added some CLI wip

* make generic

* Update instance

* Remove CLI stuff

* Remove last cli stuff

* undo more changes

* Update benchmarks

* Update Cargo.lock

* remove test

* Move loop out of runtime

* Benchmarking externalities

* Benchmarking state

* Implemented commit

* Make CLI work, move loop back into runtime

* Wipe resets to genesis

* Speedup benchmarks

* Use enum to select extrinsic within pallet

* CLI controls which module and extrinsic to call

* Select a pallet with cli

* Add steps and repeats to cli

* Output as CSV format

* Introduce benchmark pallet

* Append bench

* Use Results

* fix merge

* Clear Identity benchmark

* Bench request judgment and cancel request

* Add final benchmarks

* Fix CSV output

* Start cleaning up for PR

* Bump numbers in `wasmtime` integration tests.

* More docs

* Add rockdb feature to bench

* Fix formatting issues

* Add test feature to bench

* Add test feature to bench

* Add rocksdb feature flag

* Update bench.rs

Co-authored-by: Arkadiy Paronyan <arkady.paronyan@gmail.com>
Co-authored-by: Gavin Wood <github@gavwood.com>

* alter usage collection a bit

* replace with mutex

* Fix CLI setup again

We need to set `config_dir` and `database_path` for almost every
command.
This fixes `purge-chain` and also adds a test to make sure we don't
break it again.

* Adds missing test files

* Split methods

* pow: re-add support for algorithms where only linear verification is possible

* Remove unused generic parameters

* Clone impl for PowBlockImport

* update sp-runtime

* total update

* usage informant

* update to crates.io version

* update Cargo.lock

* update dummy update

* fix todo

* cleanup

* avoid custom impl

* Update client/transaction-pool/graph/src/future.rs

Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* remove another custom impl

* remove another custom impl

* add kb in report

* update Cargo.lock

* review suggestions

* --amend

* --amend

* bump parity-util-mem to 0.5.0

* bumps

* update macro and versions

* add to grafana

* naming

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Enable trace timings logs for transaction factory.

* babe: pass epoch data via intermediates

* Switch to use Box<dyn Any> for intermediates

* Set intermediate.epoch to be Option

* Fix proposer should put out an empty intermediate

* Remove unnecessary encode/decode

* Add EpochData to block_import_params in slot worker

* Fix aura compile

* Fix integration test

* Init epoch changes module

* Initial integration of new epoch changes module for BABE

* Fix all initial compile errors

* rename: digest -> digests

* Fix babe tests

* Bump impl_version

* Fix more test issues

* Remove test flag for tree

It unfortunately won't work for multiple crates.

* Update cargo lock

* Fix duplicate parking_lot version

* Add missing license header

These are a few changes I missed during the refactoring.

1. Initialization issue and boilerplate

    Most importantly: part of the `Configuration` initialization was done in `sc_cli::init`. This means the user can not benefit from this initialization boilerplate if they have multiple `Configuration` since `sc_cli::init` can only be called once.

2. Boilerplate for `VersionInfo` and `Configuration`

    I'm also answering to the critic of @bkchr on the initialization using version: https://github.com/paritytech/substrate/pull/4692/files/bea809d4c14a2ede953227ac885e3b3f9771c548#r372047238 This will allow initializing a `Configuration` and provide the version by default.

3. Loading the `chain_spec` explicitly

    In the past it was done automatically but in some cases we want to delay this. I moved the code to `Configuration.load_spec()` so it can be called later on. `chain_spec` can also be written directly to the `Configuration` without using this `load_spec` helper.

4. [deleted]

5. Fixing issue that prevents the user to override the port

    In the refactoring I introduced a bug by mistake that could potentially prevent the CLI user to override the ports if defaults where provided for these ports (only on cumulus).

6. Change task_executor from Box to Arc

    This is useful for cumulus where we have 2 nodes with 2 separate Configuration that need to spawn tasks to the same runtime.

7. Renamed TasksExecutorRequired to TaskExecutor

    For consistency.

This is related to https://github.com/paritytech/cumulus/issues/24

This is the continuation (and hopefully the end of) #4692 

* Don't require `store` and `store_mut` in `SandboxCapabilities`.

* Simplify the sandbox a bit

* Merge branch 'gav-split-balanecs-vesting' into gav-upsub

# Conflicts:
#	Cargo.lock
#	cli/Cargo.toml
#	collator/Cargo.toml
#	primitives/Cargo.toml
#	runtime/common/Cargo.toml
#	runtime/common/src/claims.rs
#	runtime/kusama/Cargo.toml
#	runtime/polkadot/Cargo.toml
#	service/Cargo.toml

* Update client/src/client.rs

* Update client/src/client.rs

* Fix merge conflict

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Print an error if listener is closed

* Oops, forgot to commit this

Hopefully this can be merged if the tests pass.

* add storage_getNextKey

* RPC storage_getKeysPages

* respect count

* use iterator

* improve

* add tests

* improve

* add doc comments

* Make prefix optional

* update error

* improve

* block_import: switch to Box<dyn Any> for intermediates representation

* Use Cow and return Error instead of Option

* Remove unused error

* Distinguish NoIntermediate/InvalidIntermediate

* increase limits, improve logging

* format in kB

* client/finality-grandpa: Add regression test observer polling network

Ensure `Future` implementation of `ObserverWork` is polling its
`NetworkBridge`. Regression test for bug introduced in d9837d7d and
fixed in 504b4e89

.

When polled, `NetworkBridge` forwards reputation change requests from
the `GossipValidator` to the underlying `dyn Network`. This test
triggers a reputation change by calling `GossipValidator::validate` with
an invalid gossip message. After polling the `ObserverWork` which should
poll the `NetworkBridge`, the reputation change should be forwarded to
the test network.

* Nits

Co-authored-by: Max Inden <mail@max-inden.de>

* Cleanup transaction pool deps

* Fix it properly

* Fix doc test

It changes the way we extended the CLI functionalities of substrate to allow more flexibility. (If this was not clear, here is another version: it changes the `sc_cli` API to allow more flexibility).

This touches a few important things:
 - the startup of the async task with tokei:
    This was in node and node-template and I moved it to substrate. The idea is to have 1 time the code that handles unix signals (SIGTERM and SIGINT) properly. It is however possible to make this more generic to wait for a future instead and provide only a helper for the basic handling of SIGTERM and SIGINT.
 - increased the version of structopt and tokei
 - no more use of structopt internal's API
 - less use of generics

Related to #4643 and https://github.com/paritytech/cumulus/pull/42: the implementation of "into_configuration" and "get_config" are similar but with better flexibility so it is now possible in cumulus to have the command-line arguments only of the run command for polkadot if we want

Related to https://github.com/paritytech/cumulus/issues/24 and https://github.com/paritytech/cumulus/issues/34 : it will now be possible to make a configuration struct for polkadot with some overrides of the default parameters much more easily.

Patch d9837d7d reintegrated the periodic neighbor packet worker, by
moving its logic into a `Future` implementation on `NetworkBridge` which
needs to be polled by its upper layer.

Polling by the upper layer was implemented within the `Future`
implementation of the `VoterWork` struct but not within the `Future`
implementation of the `ObserverWork` struct. This patch adds polling of
the `NetworkBridge` to the latter.

* Add `get_global` for `Sandbox`

This pr adds `get_global` to retrieve a `global` variable from an
instantiated sandbox wasm blob.

* Bump `spec_version`

* Update primitives/wasm-interface/src/lib.rs

Co-Authored-By: Sergei Pepyakin <sergei@parity.io>

* `get_global` -> `get_global_val`

Co-authored-by: Sergei Pepyakin <s.pepyakin@gmail.com>
Co-authored-by: Gavin Wood <github@gavwood.com>