* implement events handling, implement parent_id for spans & events

* add events to sp_io::storage

* update test

* add tests

* adjust limit

* let tracing crate handle parent_ids

* re-enable current-id tracking

* add test for threads with CurrentSpan

* fix log level

* remove redundant check for non wasm traces

* remove duplicate definition in test

* Adding conditional events API

* prefer explicit parent_id over current,

enhance test

* limit changes to client::tracing event implementation

* remove From impl due to fallback required on parent_id

* implement SPAN_LIMIT

change event log output

* change version of tracing-core

* update dependancies

* revert limit

* remove duplicate dependency

* Apply suggestions from code review

Co-authored-by: Bastian Köcher <[email protected]>

Co-authored-by: Matt Rutherford <[email protected]>
Co-authored-by: Benjamin Kampmann <[email protected]>
Co-authored-by: Bastian Köcher <[email protected]>

* pallet-evm: fix wrong logic in mutate_account_basic

* Add test for mutate account

* Add a warning if users pass --sentry or --sentry-nodes

* Apply suggestions from code review

Co-authored-by: Max Inden <[email protected]>

* Fix text

Co-authored-by: parity-processbot <>
Co-authored-by: Max Inden <[email protected]>

* Implement 'transactional' annotation for runtime functions.

* Allow function attributes for dispatchable calls in decl_module.

* decl_module docs: add transactional function example.

* decl_module docs: add function attributes notes.

* Fix license header.

* Fix the import queue receiver

* Add logging

* Fx #4616

* Fix #4616

* grandpa: change some logging from trace to debug

* grandpa: cleanup unused import

* refactor globals snapshot

* ignore test

* update pwasm-utils ref

* line width

* add doc comment for internal struct

* add explanation for iteration

* Demote rustdoc to a comment

* use 0.14

Co-authored-by: Sergei Shulepov <[email protected]>

* Block packet size limit

* Update client/network/src/protocol.rs

Co-authored-by: Pierre Krieger <[email protected]>

* Add block response limit

Co-authored-by: Pierre Krieger <[email protected]>

* Fancy compact encode/decode impl for compact solution

* Make it optional

* Remove extra file

* Update primitives/npos-elections/compact/src/lib.rs

Co-authored-by: Guillaume Thiolliere <[email protected]>

* Final fixes.

* getSize rpc should work for maps as well

* Fix future types

* Remove minimum_validator_count stale const

* Update client/rpc/src/state/mod.rs

Co-authored-by: Bastian Köcher <[email protected]>

* "Optimize" `storage_size`

* Remove unused import

* Update doc

Co-authored-by: Guillaume Thiolliere <[email protected]>
Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: Bastian Köcher <[email protected]>

* Fancy compact encode/decode impl for compact solution

* Make it optional

* Remove extra file

* Update primitives/npos-elections/compact/src/lib.rs

Co-authored-by: Guillaume Thiolliere <[email protected]>

* Final fixes.

Co-authored-by: Guillaume Thiolliere <[email protected]>

* seal: Change prefix "ext_" to "seal_" for contract callable functions

The word Ext is a overloaded term in the context of substrate. It usually
is a trait which abstracts away access to external resources usually in order
to mock them away for the purpose of tests. The contract module has its own
`Ext` trait in addition the the substrate `Ext` which makes things even more
confusing.

In order to differentiate the contract callable functions more clearly from
this `Ext` concept we rename them to use the "seal_" prefix instead.

This should change no behaviour at all. This is a pure renaming commit.

* seal: Rename import module from "env" to "seal0"

* seal: Fixup integration test

* seal: Add more tests for new import module names

* Rough skeleton for what I think the RPC should look like

* Create channel for sending justifications

Sends finalized header and justification from Grandpa to the
client. This lays the groundwork for hooking into the RPC module.

* WIP: Add subscribers for justifications to Grandpa

Adds the Sender end of a channel into Grandpa, through which notifications
about block finality events can be sent.

* WIP: Add a struct for managing subscriptions

Slightly different approach from the last commit, but same
basic idea. Still a rough sketch, very much doesn't compile yet.

* Make naming more clear and lock data in Arc

* Rough idea of what RPC would look like

* Remove code from previous approach

* Missed some things

* Update client/rpc-api/src/chain/mod.rs

Co-Authored-By: Tomasz Drwięga <[email protected]>

* Update client/rpc-api/src/chain/mod.rs

Co-Authored-By: Tomasz Drwięga <[email protected]>

* Split justification subscription into sender and receiver halves

* Replace RwLock with a Mutex

* Add sample usage from the Service's point of view

* Remove code that referred to "chain_" RPC

* Use the Justification sender/receivers from Grandpa LinkHalf

* Add some PubSub boilerplate

* Add guiding comments

* TMP: comment out to fix compilation

* Return MetaIoHandler from PubSubHandler in create_full

* Uncomment pubsub methods in rpc handler (fails to build)

* node/rpc: make Metadata concrete in create_full to fix compilation

* node: pass in SubscriptionManger to grandpa rpc handler

* grandpa-rpc: use SubscriptionManger to add subscriber

* grandpa-rpc: attempt at setting up the justification stream (fails to build)

* grandpa-rpc: fix compilation of connecting stream to sink

* grandpa-rpc: implement unsubscribe

* grandpa-rpc: update older tests

* grandpa-rpc: add full prefix to avoid confusing rust-analyzer

* grandpa-rpc: add test for pubsub not available

* grandpa-rpc: tidy up leftover code

* grandpa-rpc: add test for sub and unsub of justifications

* grandpa-rpc: minor stylistic changes

* grandpa-rpc: split unit test

* grandpa-rpc: minor stylistic changes in test

* grandpa-rpc: skip returning future when cancelling

* grandpa-rpc: reuse testing executor from sc-rpc

* grandpa-rpc: don't need to use PubSubHandler in tests

* node-rpc: use MetaIoHandler rather than PubSubHandler

* grandpa: log if getting header failed

* grandpa: move justification channel creation into factory function

* grandpa: make the justification sender optional

* grandpa: fix compilation warnings

* grandpa: move justification notification types to new file

* grandpa-rpc: move JustificationNotification to grandpa-rpc

* grandpa-rpc: move JustificationNotification to its own file

* grandpa: rename justification channel pairs

* grandpa: rename notifier types

* grandpa: pass justification as GrandpaJustification to the rpc module

* Move Metadata to sc-rpc-api

* grandpa-rpc: remove unsed error code

* grandpa: fix bug for checking if channel is closed before sendind

* grandpa-rpc: unit test for sending justifications

* grandpa-rpc: update comments for the pubsub test

* grandpa-rpc: update pubsub tests with more steps

* grandpa-rpc: fix pubsub test

* grandpa-rpc: minor indendation

* grandpa-rpc: decode instead of encode in test

* grandpa: fix review comments

* grandpa: remove unused serde dependency

Co-authored-by: Tomasz Drwięga <[email protected]>
Co-authored-by: Jon Häggblad <[email protected]>
Co-authored-by: Tomasz Drwięga <[email protected]>

* Update dependency.

* Update readme docs

* update python webserver command