Merge pull request #3972 from xiang90/fix_race
store: fix data race when modify event in watchHub.release-2.3
commit
833c934bd4
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@ -78,8 +78,9 @@ func (wh *watcherHub) watch(key string, recursive, stream bool, index, storeInde
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defer wh.mutex.Unlock()
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// If the event exists in the known history, append the EtcdIndex and return immediately
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if event != nil {
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event.EtcdIndex = storeIndex
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w.eventChan <- event
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ne := event.Clone()
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ne.EtcdIndex = storeIndex
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w.eventChan <- ne
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return w, nil
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}
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