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Fire OnStreamCompleted after all pipes are closed

This commit is contained in:
John Luo 2018-08-17 17:45:47 -07:00
parent aa9dde2457
commit 6f7a841374
1 changed files with 60 additions and 25 deletions
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85
src/Kestrel.Core/Internal/Http2/Http2Stream.cs
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@ -63,13 +63,20 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http2
protected override void OnRequestProcessingEnded()
{
TryApplyCompletionFlag(StreamCompletionFlags.RequestProcessingEnded);
var states = ApplyCompletionFlag(StreamCompletionFlags.RequestProcessingEnded);
RequestBodyPipe.Reader.Complete();
try
{
RequestBodyPipe.Reader.Complete();
// The app can no longer read any more of the request body, so return any bytes that weren't read to the
// connection's flow-control window.
_inputFlowControl.Abort();
// The app can no longer read any more of the request body, so return any bytes that weren't read to the
// connection's flow-control window.
_inputFlowControl.Abort();
}
finally
{
TryFireOnStreamCompleted(states);
}
}
protected override string CreateRequestId()
@ -335,11 +342,18 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http2
}
}
TryApplyCompletionFlag(StreamCompletionFlags.EndStreamReceived);
var states = ApplyCompletionFlag(StreamCompletionFlags.EndStreamReceived);
RequestBodyPipe.Writer.Complete();
try
{
RequestBodyPipe.Writer.Complete();
_inputFlowControl.StopWindowUpdates();
_inputFlowControl.StopWindowUpdates();
}
finally
{
TryFireOnStreamCompleted(states);
}
}
public void OnDataRead(int bytesRead)
@ -354,12 +368,21 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http2
public void Abort(IOException abortReason)
{
if (!TryApplyCompletionFlag(StreamCompletionFlags.Aborted))
{
return;
}
var states = ApplyCompletionFlag(StreamCompletionFlags.Aborted);
AbortCore(abortReason);
try
{
if (states.OldState == states.NewState)
{
return;
}
AbortCore(abortReason);
}
finally
{
TryFireOnStreamCompleted(states);
}
}
protected override void OnErrorAfterResponseStarted()
@ -377,17 +400,26 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http2
private void ResetAndAbort(ConnectionAbortedException abortReason, Http2ErrorCode error)
{
if (!TryApplyCompletionFlag(StreamCompletionFlags.Aborted))
var states = ApplyCompletionFlag(StreamCompletionFlags.Aborted);
if (states.OldState == states.NewState)
{
return;
}
Log.Http2StreamResetAbort(TraceIdentifier, error, abortReason);
try
{
Log.Http2StreamResetAbort(TraceIdentifier, error, abortReason);
// Don't block on IO. This never faults.
_ = _http2Output.WriteRstStreamAsync(error);
// Don't block on IO. This never faults.
_ = _http2Output.WriteRstStreamAsync(error);
AbortCore(abortReason);
AbortCore(abortReason);
}
finally
{
TryFireOnStreamCompleted(states);
}
}
private void AbortCore(Exception abortReason)
@ -415,19 +447,22 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http2
minimumSegmentSize: KestrelMemoryPool.MinimumSegmentSize
));
private bool TryApplyCompletionFlag(StreamCompletionFlags completionState)
private (StreamCompletionFlags OldState, StreamCompletionFlags NewState) ApplyCompletionFlag(StreamCompletionFlags completionState)
{
lock (_completionLock)
{
var lastCompletionState = _completionState;
var oldCompletionState = _completionState;
_completionState |= completionState;
if (ShouldStopTrackingStream(_completionState) && !ShouldStopTrackingStream(lastCompletionState))
{
_context.StreamLifetimeHandler.OnStreamCompleted(StreamId);
}
return (oldCompletionState, _completionState);
}
}
return _completionState != lastCompletionState;
private void TryFireOnStreamCompleted((StreamCompletionFlags OldState, StreamCompletionFlags NewState) states)
{
if (!ShouldStopTrackingStream(states.OldState) && ShouldStopTrackingStream(states.NewState))
{
_context.StreamLifetimeHandler.OnStreamCompleted(StreamId);
}
}