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eth/downloader: cache parent hash instead of recomputing (#21678)

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Marius van der Wijden 2020-10-09 09:09:10 +02:00 committed by Igor Mandrigin
parent 99120e0c07
commit e40950ebd2
1 changed files with 4 additions and 1 deletions
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5
eth/downloader/queue.go
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@ -734,6 +734,7 @@ func (q *queue) DeliverHeaders(id string, headers []*types.Header, headerProcCh
}
}
if accepted {
parentHash := headers[0].Hash()
for i, header := range headers[1:] {
hash := header.Hash()
if want := request.From + 1 + uint64(i); header.Number.Uint64() != want {
@ -741,11 +742,13 @@ func (q *queue) DeliverHeaders(id string, headers []*types.Header, headerProcCh
accepted = false
break
}
if headers[i].Hash() != header.ParentHash {
if parentHash != header.ParentHash {
log.Warn("Header broke chain ancestry", "peer", id, "number", header.Number, "hash", hash)
accepted = false
break
}
// Set-up parent hash for next round
parentHash = hash
}
}
// If the batch of headers wasn't accepted, mark as unavailable