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chain-api subsystem: implement BlockHeader messsage (#1778)

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* chain-api subsystem: implement BlockHeader messsage

* update the guide
This commit is contained in:
Andronik Ordian
2020-10-06 16:46:54 +02:00
committed by GitHub
parent abf76d27dc
commit d00bdfef08
4 changed files with 48 additions and 8 deletions
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polkadot/node/subsystem/src/messages.rs
+12 -8
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@@ -31,12 +31,13 @@ use polkadot_node_primitives::{
CollationGenerationConfig, MisbehaviorReport, SignedFullStatement, ValidationResult,
};
use polkadot_primitives::v1::{
AuthorityDiscoveryId, AvailableData, BackedCandidate, BlockNumber, CandidateDescriptor,
CandidateEvent, CandidateReceipt, CollatorId, CommittedCandidateReceipt,
CoreState, ErasureChunk, GroupRotationInfo, Hash, Id as ParaId,
OccupiedCoreAssumption, PersistedValidationData, PoV, SessionIndex, SignedAvailabilityBitfield,
TransientValidationData, ValidationCode, ValidatorId, ValidationData, ValidatorIndex,
ValidatorSignature,
AuthorityDiscoveryId, AvailableData, BackedCandidate, BlockNumber,
Header as BlockHeader, CandidateDescriptor, CandidateEvent, CandidateReceipt,
CollatorId, CommittedCandidateReceipt, CoreState, ErasureChunk,
GroupRotationInfo, Hash, Id as ParaId, OccupiedCoreAssumption,
PersistedValidationData, PoV, SessionIndex, SignedAvailabilityBitfield,
TransientValidationData, ValidationCode, ValidatorId, ValidationData,
ValidatorIndex, ValidatorSignature,
};
use std::sync::Arc;
@@ -336,6 +337,9 @@ pub enum ChainApiMessage {
/// Request the block number by hash.
/// Returns `None` if a block with the given hash is not present in the db.
BlockNumber(Hash, ChainApiResponseChannel<Option<BlockNumber>>),
/// Request the block header by hash.
/// Returns `None` if a block with the given hash is not present in the db.
BlockHeader(Hash, ChainApiResponseChannel<Option<BlockHeader>>),
/// Request the finalized block hash by number.
/// Returns `None` if a block with the given number is not present in the db.
/// Note: the caller must ensure the block is finalized.
@@ -404,10 +408,10 @@ pub enum RuntimeApiRequest {
/// the block in whose state this request is executed.
CandidateEvents(RuntimeApiSender<Vec<CandidateEvent>>),
/// Get the `AuthorityDiscoveryId`s corresponding to the given `ValidatorId`s.
/// Currently this request is limited to validators in the current session.
/// Currently this request is limited to validators in the current session.
///
/// Returns `None` for validators not found in the current session.
ValidatorDiscovery(Vec<ValidatorId>, RuntimeApiSender<Vec<Option<AuthorityDiscoveryId>>>),
ValidatorDiscovery(Vec<ValidatorId>, RuntimeApiSender<Vec<Option<AuthorityDiscoveryId>>>),
}
/// A message to the Runtime API subsystem.