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proposer: return optional block (#2834)

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This opens up the proposer to only optionally create blocks. Nodes may
only make blocks when there are transactions or the chain is scheduled.

---------

Co-authored-by: command-bot <>
This commit is contained in:
asynchronous rob
2024-01-04 10:57:10 -08:00
committed by GitHub
parent e07476e34e
commit 19de1c9660
5 changed files with 41 additions and 10 deletions
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cumulus/client/consensus/proposer/src/lib.rs
+3 -2
View File
@@ -76,7 +76,7 @@ pub trait ProposerInterface<Block: BlockT> {
inherent_digests: Digest,
max_duration: Duration,
block_size_limit: Option<usize>,
) -> Result<Proposal<Block, StorageProof>, Error>;
) -> Result<Option<Proposal<Block, StorageProof>>, Error>;
}
/// A simple wrapper around a Substrate proposer for creating collations.
@@ -109,7 +109,7 @@ where
inherent_digests: Digest,
max_duration: Duration,
block_size_limit: Option<usize>,
) -> Result<Proposal<B, StorageProof>, Error> {
) -> Result<Option<Proposal<B, StorageProof>>, Error> {
let proposer = self
.inner
.init(parent_header)
@@ -127,6 +127,7 @@ where
proposer
.propose(inherent_data, inherent_digests, max_duration, block_size_limit)
.await
.map(Some)
.map_err(|e| Error::proposing(anyhow::Error::new(e)).into())
}
}