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clientv3: handle non -1 watch ID on cancellation

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Signed-off-by: Gyuho Lee <gyuhox@gmail.com>
This commit is contained in:
Gyuho Lee 2017-12-22 14:36:38 -08:00
parent 33c732b97c
commit 10522f88f5
1 changed files with 4 additions and 1 deletions
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5
clientv3/watch.go
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@ -367,7 +367,8 @@ func (w *watcher) closeStream(wgs *watchGrpcStream) {
}
func (w *watchGrpcStream) addSubstream(resp *pb.WatchResponse, ws *watcherStream) {
if resp.WatchId == -1 {
// check watch ID for backward compatibility (<= v3.3)
if resp.WatchId == -1 || (resp.Canceled && resp.CancelReason != "") {
// failed; no channel
close(ws.recvc)
return
@ -453,6 +454,7 @@ func (w *watchGrpcStream) run() {
// Watch() requested
case wreq := <-w.reqc:
outc := make(chan WatchResponse, 1)
// TODO: pass custom watch ID?
ws := &watcherStream{
initReq: *wreq,
id: -1,
@ -553,6 +555,7 @@ func (w *watchGrpcStream) dispatchEvent(pbresp *pb.WatchResponse) bool {
for i, ev := range pbresp.Events {
events[i] = (*Event)(ev)
}
// TODO: return watch ID?
wr := &WatchResponse{
Header: *pbresp.Header,
Events: events,