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add a HasWindowUpdate method to the stream flow controller

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This commit is contained in:
Marten Seemann 2017-12-21 17:06:38 +07:00
parent 8759fa2d8e
commit 15ab0ae443
5 changed files with 38 additions and 4 deletions
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7
internal/flowcontrol/stream_flow_controller.go
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@ -109,6 +109,13 @@ func (c *streamFlowController) SendWindowSize() protocol.ByteCount {
return window
}
func (c *streamFlowController) HasWindowUpdate() bool {
c.mutex.Lock()
hasWindowUpdate := !c.receivedFinalOffset && c.hasWindowUpdate()
c.mutex.Unlock()
return hasWindowUpdate
}
func (c *streamFlowController) GetWindowUpdate() protocol.ByteCount {
// don't use defer for unlocking the mutex here, GetWindowUpdate() is called frequently and defer shows up in the profiler
c.mutex.Lock()