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fix race conditions

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This commit is contained in:
Jae Kwon
2014-12-28 17:10:03 -08:00
parent b0755c938a
commit 946fa21dc7
3 changed files with 26 additions and 12 deletions
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4
consensus/reactor.go
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@ -323,7 +323,11 @@ OUTER_LOOP:
trySendVote := func(voteSet *VoteSet, peerVoteSet BitArray) (sent bool) {
// TODO: give priority to our vote.
// peerVoteSet BitArray is being accessed concurrently with
// writes from Receive() routines. We must lock like so here:
ps.mtx.Lock()
index, ok := voteSet.BitArray().Sub(peerVoteSet).PickRandom()
ps.mtx.Unlock()
if ok {
vote := voteSet.GetByIndex(index)
// NOTE: vote may be a commit.