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set LeastUnackedDelta length in StopWaitingFrame

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fixes #79
This commit is contained in:
Marten Seemann
2016-05-12 13:05:42 +07:00
parent aaf4b0ae9e
commit 33c0f3a5df
15 changed files with 187 additions and 51 deletions
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9
frames/stream_frame.go
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@@ -182,7 +182,7 @@ func (f *StreamFrame) getOffsetLength() protocol.ByteCount {
}
// MinLength of a written frame
func (f *StreamFrame) MinLength() protocol.ByteCount {
func (f *StreamFrame) MinLength() (protocol.ByteCount, error) {
if f.streamIDLen == 0 {
f.calculateStreamIDLength()
}
@@ -192,15 +192,16 @@ func (f *StreamFrame) MinLength() protocol.ByteCount {
length += 2
}
return length + 1
return length + 1, nil
}
// MaybeSplitOffFrame removes the first n bytes and returns them as a separate frame. If n >= len(n), nil is returned and nothing is modified.
func (f *StreamFrame) MaybeSplitOffFrame(n protocol.ByteCount) *StreamFrame {
if n >= f.MinLength()-1+protocol.ByteCount(len(f.Data)) {
minLength, _ := f.MinLength() // StreamFrame.MinLength *never* errors
if n >= minLength-1+protocol.ByteCount(len(f.Data)) {
return nil
}
n -= f.MinLength() - 1
n -= minLength - 1
defer func() {
f.Data = f.Data[n:]