tornadocontrib/web3-proxy
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fetch blocks once

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This commit is contained in:
Bryan Stitt 2022-05-03 05:20:11 +00:00
parent 5a9bcd5dc3
commit b9f4a9437d
1 changed files with 21 additions and 8 deletions
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29
src/connection.rs
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@ -166,21 +166,34 @@ impl Web3Connection {
// TODO: it would be faster to get the block number, but subscriptions don't provide that
// TODO: maybe we can do provider.subscribe("newHeads") and then parse into a custom struct that only gets the number out?
let mut stream = provider.subscribe_blocks().await?;
// query the block once since the subscription doesn't send the current block
// there is a very small race condition here where the stream could send us a new block right now
// all it does is print "new block" for the same block as current block
let block_number = provider.get_block_number().await.map(|x| x.as_u64())?;
info!("current block on {}: {}", self, block_number);
self.head_block_number
.store(block_number, atomic::Ordering::Release);
if let Some(connections) = &connections {
connections.update_synced_rpcs(&self, block_number)?;
}
while let Some(block) = stream.next().await {
let block_number = block.number.unwrap().as_u64();
// TODO: only store if this isn't already stored?
// TODO: also send something to the provider_tier so it can sort?
let old_block_number = self
.head_block_number
.swap(block_number, atomic::Ordering::AcqRel);
// TODO: do we need this old block number check? its helpful on http, but here it shouldn't dupe except maybe on the first run
self.head_block_number
.store(block_number, atomic::Ordering::Release);
if old_block_number != block_number {
info!("new block on {}: {}", self, block_number);
info!("new block on {}: {}", self, block_number);
if let Some(connections) = &connections {
connections.update_synced_rpcs(&self, block_number)?;
}
if let Some(connections) = &connections {
connections.update_synced_rpcs(&self, block_number)?;
}
}
}