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handle queue import errors a bit more gracefully (#8385)

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Robert Habermeier 2018-04-13 14:06:22 +02:00 committed by GitHub
parent bc2f5586ee
commit 869fa6fda8
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1 changed files with 15 additions and 4 deletions
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13
ethcore/sync/src/light_sync/mod.rs
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@ -427,6 +427,8 @@ impl<L: AsLightClient> LightSync<L> {
// handles request dispatch, block import, state machine transitions, and timeouts.
fn maintain_sync(&self, ctx: &BasicContext) {
use ethcore::error::{BlockImportError, ImportError};
const DRAIN_AMOUNT: usize = 128;
let client = self.client.as_light_client();
@ -453,7 +455,15 @@ impl<L: AsLightClient> LightSync<L> {
trace!(target: "sync", "Drained {} headers to import", sink.len());
for header in sink.drain(..) {
if let Err(e) = client.queue_header(header) {
match client.queue_header(header) {
Ok(_) => {}
Err(BlockImportError::Import(ImportError::AlreadyInChain)) => {
trace!(target: "sync", "Block already in chain. Continuing.");
},
Err(BlockImportError::Import(ImportError::AlreadyQueued)) => {
trace!(target: "sync", "Block already queued. Continuing.");
},
Err(e) => {
debug!(target: "sync", "Found bad header ({:?}). Reset to search state.", e);
self.begin_search(&mut state);
@ -462,6 +472,7 @@ impl<L: AsLightClient> LightSync<L> {
}
}
}
}
// handle state transitions.
{