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Implement HRMP (#1900)

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* HRMP: Update the impl guide

* HRMP: Incorporate the channel notifications into the guide

* HRMP: Renaming in the impl guide

* HRMP: Constrain the maximum number of HRMP messages per candidate

This commit addresses the HRMP part of https://github.com/paritytech/polkadot/issues/1869

* XCM: Introduce HRMP related message types

* HRMP: Data structures and plumbing

* HRMP: Configuration

* HRMP: Data layout

* HRMP: Acceptance & Enactment

* HRMP: Test base logic

* Update adder collator

* HRMP: Runtime API for accessing inbound messages

Also, removing some redundant fully-qualified names.

* HRMP: Add diagnostic logging in acceptance criteria

* HRMP: Additional tests

* Self-review fixes

* save test refactorings for the next time

* Missed a return statement.

* a formatting blip

* Add missing logic for appending HRMP digests

* Remove the channel contents vectors which became empty

* Tighten HRMP channel digests invariants.

* Apply suggestions from code review

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* Remove a note about sorting for channel id

* Add missing rustdocs to the configuration

* Clarify and update the invariant for HrmpChannelDigests

* Make the onboarding invariant less sloppy

Namely, introduce `Paras::is_valid_para` (in fact, it already is present
in the implementation) and hook up the invariant to that.

Note that this says "within a session" because I don't want to make it
super strict on the session boundary. The logic on the session boundary
should be extremely careful.

* Make `CandidateCheckContext` use T::BlockNumber for hrmp_watermark

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>
This commit is contained in:
Sergei Shulepov
2020-11-06 16:35:36 +01:00
committed by GitHub
parent 8a2911b85d
commit c96f8cfcca
33 changed files with 2024 additions and 72 deletions
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polkadot/node/primitives/src/lib.rs
+6 -2
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@@ -28,7 +28,7 @@ use polkadot_primitives::v1::{
Hash, CommittedCandidateReceipt, CandidateReceipt, CompactStatement,
EncodeAs, Signed, SigningContext, ValidatorIndex, ValidatorId,
UpwardMessage, ValidationCode, PersistedValidationData, ValidationData,
HeadData, PoV, CollatorPair, Id as ParaId, ValidationOutputs, CandidateHash,
HeadData, PoV, CollatorPair, Id as ParaId, OutboundHrmpMessage, ValidationOutputs, CandidateHash,
};
use polkadot_statement_table::{
generic::{
@@ -252,9 +252,11 @@ impl std::convert::TryFrom<FromTableMisbehavior> for MisbehaviorReport {
/// - does not contain the erasure root; that's computed at the Polkadot level, not at Cumulus
/// - contains a proof of validity.
#[derive(Clone, Encode, Decode)]
pub struct Collation {
pub struct Collation<BlockNumber = polkadot_primitives::v1::BlockNumber> {
/// Messages destined to be interpreted by the Relay chain itself.
pub upward_messages: Vec<UpwardMessage>,
/// The horizontal messages sent by the parachain.
pub horizontal_messages: Vec<OutboundHrmpMessage<ParaId>>,
/// New validation code.
pub new_validation_code: Option<ValidationCode>,
/// The head-data produced as a result of execution.
@@ -263,6 +265,8 @@ pub struct Collation {
pub proof_of_validity: PoV,
/// The number of messages processed from the DMQ.
pub processed_downward_messages: u32,
/// The mark which specifies the block number up to which all inbound HRMP messages are processed.
pub hrmp_watermark: BlockNumber,
}
/// Configuration for the collation generator