protected virtual void Flush0() { if (inFlush0) { // Avoid re-entrance return; } ChannelOutboundBuffer outboundBuffer = this.outboundBuffer; if (outboundBuffer == null || outboundBuffer.IsEmpty) { return; } this.inFlush0 = true; // Mark all pending write requests as failure if the channel is inactive. if (!this._channel.IsActive) { try { if (this._channel.IsOpen) { outboundBuffer.FailFlushed(NotYetConnectedException.Instance, true); } else { // Do not trigger channelWritabilityChanged because the channel is closed already. outboundBuffer.FailFlushed(ClosedChannelException.Instance, false); } } finally { this.inFlush0 = false; } return; } try { this._channel.DoWrite(outboundBuffer); } catch (Exception t) { outboundBuffer.FailFlushed(t, true); } finally { this.inFlush0 = false; } }
public Task CloseAsync() //CancellationToken cancellationToken) { var promise = new TaskCompletionSource(); if (!promise.SetUncancellable()) { return(promise.Task); } //if (cancellationToken.IsCancellationRequested) //{ // return TaskEx.Cancelled; //} if (this.outboundBuffer == null) { // Only needed if no VoidChannelPromise. if (promise != TaskCompletionSource.Void) { // This means close() was called before so we just register a listener and return return(this._channel._closeTask.Task); } return(promise.Task); } if (this._channel._closeTask.Task.IsCompleted) { // Closed already. PromiseUtil.SafeSetSuccess(promise, Logger); return(promise.Task); } bool wasActive = this._channel.IsActive; ChannelOutboundBuffer buffer = this.outboundBuffer; this.outboundBuffer = null; // Disallow adding any messages and flushes to outboundBuffer. try { // Close the channel and fail the queued messages input all cases. this.DoClose0(promise); } finally { // Fail all the queued messages. buffer.FailFlushed(ClosedChannelException.Instance, false); buffer.Close(ClosedChannelException.Instance); } if (this.inFlush0) { this.InvokeLater(() => this.FireChannelInactiveAndDeregister(wasActive)); } else { this.FireChannelInactiveAndDeregister(wasActive); } return(promise.Task); }