private async Task ProcessIncomingFramesAsync(CancellationToken cancellationToken)
{
try
{
while (!cancellationToken.IsCancellationRequested)
{
Frame frame = await _connection.ReadFrameAsync(cancellationToken);
if (frame is PingFrame pingFrame)
{
if (pingFrame.AckFlag)
{
_output?.WriteLine($"Received unexpected PING ACK ({pingFrame.Data})");
await _framesChannel.Writer.WriteAsync(frame, cancellationToken);
}
else
{
_output?.WriteLine($"Received PING ({pingFrame.Data})");
Interlocked.Increment(ref _pingCounter);
if (_sendPingResponse > 0)
{
await GuardConnectionWriteAsync(() => _connection.SendPingAckAsync(pingFrame.Data, cancellationToken), cancellationToken);
}
}
}
else if (frame is WindowUpdateFrame windowUpdateFrame)
{
_output?.WriteLine($"Received WINDOW_UPDATE");
}
else if (frame is not null)
{
//_output?.WriteLine($"Received {frame}");
await _framesChannel.Writer.WriteAsync(frame, cancellationToken);
}
}
}
catch (OperationCanceledException)
{
}
_output?.WriteLine("ProcessIncomingFramesAsync finished");
await _connection.DisposeAsync();
}