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make CancelWrite a no-op when called after closing the stream

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This commit is contained in:
Marten Seemann 2019-01-24 09:22:46 +07:00
parent 415f79f892
commit 3808191679
3 changed files with 11 additions and 18 deletions
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5
send_stream.go
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@ -254,12 +254,9 @@ func (s *sendStream) CancelWrite(errorCode protocol.ApplicationErrorCode) error
// must be called after locking the mutex
func (s *sendStream) cancelWriteImpl(errorCode protocol.ApplicationErrorCode, writeErr error) (bool /*completed */, error) {
if s.canceledWrite {
if s.canceledWrite || s.finishedWriting {
return false, nil
}
if s.finishedWriting {
return false, fmt.Errorf("CancelWrite for closed stream %d", s.streamID)
}
s.canceledWrite = true
s.cancelWriteErr = writeErr
s.signalWrite()