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Deduplicate Grandpa consensus log reading logic (#2245) (#2246)

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This commit is contained in:
Serban Iorga
2023-07-07 13:26:55 +03:00
committed by Bastian Köcher
parent d327c9e0a8
commit fc0aa382ab
3 changed files with 29 additions and 47 deletions
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bridges/primitives/header-chain/src/lib.rs
+15 -2
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@@ -139,7 +139,7 @@ pub trait ConsensusLogReader {
pub struct GrandpaConsensusLogReader<Number>(sp_std::marker::PhantomData<Number>);
impl<Number: Codec> GrandpaConsensusLogReader<Number> {
pub fn find_authorities_change(
pub fn find_scheduled_change(
digest: &Digest,
) -> Option<sp_consensus_grandpa::ScheduledChange<Number>> {
// find the first consensus digest with the right ID which converts to
@@ -151,11 +151,24 @@ impl<Number: Codec> GrandpaConsensusLogReader<Number> {
_ => None,
})
}
pub fn find_forced_change(
digest: &Digest,
) -> Option<(Number, sp_consensus_grandpa::ScheduledChange<Number>)> {
// find the first consensus digest with the right ID which converts to
// the right kind of consensus log.
digest
.convert_first(|log| log.consensus_try_to(&GRANDPA_ENGINE_ID))
.and_then(|log| match log {
ConsensusLog::ForcedChange(delay, change) => Some((delay, change)),
_ => None,
})
}
}
impl<Number: Codec> ConsensusLogReader for GrandpaConsensusLogReader<Number> {
fn schedules_authorities_change(digest: &Digest) -> bool {
GrandpaConsensusLogReader::<Number>::find_authorities_change(digest).is_some()
GrandpaConsensusLogReader::<Number>::find_scheduled_change(digest).is_some()
}
}