Enum polkadot_node_subsystem_types::messages::ApprovalVotingMessage

pub enum ApprovalVotingMessage {
    ImportAssignment(CheckedIndirectAssignment, Option<Sender<AssignmentCheckResult>>),
    ImportApproval(CheckedIndirectSignedApprovalVote, Option<Sender<ApprovalCheckResult>>),
    ApprovedAncestor(Hash, BlockNumber, Sender<Option<HighestApprovedAncestorBlock>>),
    GetApprovalSignaturesForCandidate(CandidateHash, Sender<HashMap<ValidatorIndex, (Vec<CandidateHash>, ValidatorSignature)>>),
}

Message to the Approval Voting subsystem.

Variants

ImportAssignment(CheckedIndirectAssignment, Option<Sender<AssignmentCheckResult>>)

Import an assignment into the approval-voting database.

Should not be sent unless the block hash is known and the VRF assignment checks out.

ImportApproval(CheckedIndirectSignedApprovalVote, Option<Sender<ApprovalCheckResult>>)

Import an approval vote into approval-voting database

Should not be sent unless the block hash within the indirect vote is known, vote is correctly signed and we had a previous assignment for the candidate.

ApprovedAncestor(Hash, BlockNumber, Sender<Option<HighestApprovedAncestorBlock>>)

Returns the highest possible ancestor hash of the provided block hash which is acceptable to vote on finality for. The BlockNumber provided is the number of the block’s ancestor which is the earliest possible vote.

It can also return the same block hash, if that is acceptable to vote upon. Return None if the input hash is unrecognized.

GetApprovalSignaturesForCandidate(CandidateHash, Sender<HashMap<ValidatorIndex, (Vec<CandidateHash>, ValidatorSignature)>>)

Retrieve all available approval signatures for a candidate from approval-voting.

This message involves a linear search for candidates on each relay chain fork and also requires calling into approval-distribution: Calls should be infrequent and bounded.

Trait Implementations

impl Debug for ApprovalVotingMessage

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl TryFrom<ApprovalVotingParallelMessage> for ApprovalVotingMessage

type Error = ()

The type returned in the event of a conversion error.

fn try_from(msg: ApprovalVotingParallelMessage) -> Result<Self, Self::Error>

Performs the conversion.