// WaitResponse waits on the given stream for given duration.
// If there is no more events, true and a nil response will be
// returned closing the WatchClient stream. Or the response will
// be returned.
func WaitResponse(wc pb.Watch_WatchClient, timeout time.Duration) (bool, *pb.WatchResponse) {
rCh := make(chan *pb.WatchResponse)
go func() {
resp, _ := wc.Recv()
rCh <- resp
}()
select {
case nr := <-rCh:
return false, nr
case <-time.After(timeout):
}
wc.CloseSend()
rv, ok := <-rCh
if rv != nil || !ok {
return false, rv
}
return true, nil
}
// waitResponse waits on the given stream for given duration.
// If there is no more events, true and a nil response will be
// returned closing the WatchClient stream. Or the response will
// be returned.
func waitResponse(wc pb.Watch_WatchClient, timeout time.Duration) (bool, *pb.WatchResponse) {
rCh := make(chan *pb.WatchResponse, 1)
donec := make(chan struct{})
defer close(donec)
go func() {
resp, _ := wc.Recv()
select {
case rCh <- resp:
case <-donec:
}
}()
select {
case nr := <-rCh:
return false, nr
case <-time.After(timeout):
}
// didn't get response
wc.CloseSend()
return true, nil
}