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reduce calls to framer.getFCAllowance

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This commit is contained in:
Lucas Clemente 2016-07-12 15:01:14 +02:00
parent 58ec83c4ba
commit 38098954f4
1 changed files with 6 additions and 4 deletions
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10
stream_framer.go
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@ -145,11 +145,13 @@ func (f *streamFramer) maybePopNormalFrame(maxBytes protocol.ByteCount) (*frames
}
maxLen := maxBytes - frameHeaderBytes
fcAllowance, err := f.getFCAllowanceForStream(s)
if err != nil {
return nil, err
if s.lenOfDataForWriting() != 0 {
fcAllowance, err := f.getFCAllowanceForStream(s)
if err != nil {
return nil, err
}
maxLen = utils.MinByteCount(maxLen, fcAllowance)
}
maxLen = utils.MinByteCount(maxLen, fcAllowance)
if maxLen == 0 {
continue