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fix block body fetch for availability pruning (#539)

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This commit is contained in:
Robert Habermeier
2018-08-10 16:02:07 +02:00
committed by Gav Wood
parent a330f2e058
commit c2b20fe5b0
1 changed files with 14 additions and 8 deletions
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substrate/polkadot/consensus/src/service.rs
+14 -8
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@@ -103,7 +103,8 @@ fn prune_unneeded_availability<C>(client: Arc<C>, extrinsic_store: ExtrinsicStor
use polkadot_runtime::CheckedBlock;
enum NotifyError {
NoBody(::client::error::Error),
NoBody,
BodyFetch(::client::error::Error),
UnexpectedFormat,
ExtrinsicsWrong,
}
@@ -111,29 +112,34 @@ fn prune_unneeded_availability<C>(client: Arc<C>, extrinsic_store: ExtrinsicStor
impl NotifyError {
fn log(&self, hash: &::polkadot_primitives::Hash) {
match *self {
NotifyError::NoBody(ref err) => warn!("Failed to fetch block body for imported block {:?}: {:?}", hash, err),
NotifyError::NoBody => warn!("No block body for imported block {:?}", hash),
NotifyError::BodyFetch(ref err) => warn!("Failed to fetch block body for imported block {:?}: {:?}", hash, err),
NotifyError::UnexpectedFormat => warn!("Consensus outdated: Block {:?} has unexpected body format", hash),
NotifyError::ExtrinsicsWrong => warn!("Consensus outdated: Failed to fetch block body for imported block {:?}", hash),
NotifyError::ExtrinsicsWrong => warn!("Consensus outdated: Extrinsics cannot be decoded for {:?}", hash),
}
}
}
client.import_notification_stream()
.for_each(move |notification| {
let checked_block = client.block_body(&BlockId::hash(notification.hash))
.map_err(NotifyError::NoBody)
.map(|b| ::polkadot_runtime::Block::decode(&mut b.encode().as_slice()))
let hash = notification.hash;
let parent_hash = notification.header.parent_hash;
let checked_block = client.block_body(&BlockId::hash(hash))
.map_err(NotifyError::BodyFetch)
.and_then(|maybe_body| maybe_body.ok_or(NotifyError::NoBody))
.map(|extrinsics| Block { header: notification.header, extrinsics })
.map(|b: Block| ::polkadot_runtime::Block::decode(&mut b.encode().as_slice()))
.and_then(|maybe_block| maybe_block.ok_or(NotifyError::UnexpectedFormat))
.and_then(|block| CheckedBlock::new(block).map_err(|_| NotifyError::ExtrinsicsWrong));
match checked_block {
Ok(block) => {
let candidate_hashes = block.parachain_heads().iter().map(|c| c.hash()).collect();
if let Err(e) = extrinsic_store.candidates_finalized(notification.header.parent_hash, candidate_hashes) {
if let Err(e) = extrinsic_store.candidates_finalized(parent_hash, candidate_hashes) {
warn!(target: "consensus", "Failed to prune unneeded available data: {:?}", e);
}
}
Err(e) => e.log(&notification.hash)
Err(e) => e.log(&hash)
}
Ok(())