// notifies cancellation (via the progress callback) for all
// messages that have complete frames in the given list
private void notifyCancellation(IList <OutgoingFrame> frames)
{
foreach (OutgoingFrame frame in frames)
{
if (frame.byteCount == frame.totalByteCount)
{
// this is the last frame for the given message
MessageProgressCallback callback =
frame.messageProgressCallback;
if (callback != null)
{
callback.progress(0, 0);
}
}
}
}
internal virtual void doSomeOutput()
{
OutgoingFrame frame;
lock (outgoingFrames)
{
if (outgoingFrames.Count == 0)
{
return;
}
frame = outgoingFrames[0];
if (frame.closeFlag)
{
outgoingFrames.RemoveAt(0);
// this artificial exception forces the worker to
// physically close this connection and remove it
// from the set of channels
throw new YAMIIOException("dummy");
}
}
if (connection.connectedChannel != null)
{
// TCP connection
int sent =
connection.connectedChannel.Send(frame.BuffersToSent);
frame.AddSentBytes(sent);
}
else if (connection.ssl != null)
{
// TCP SSL connection
int sent =
connection.writingQueue.PutMany(frame.BuffersToSent);
frame.AddSentBytes(sent);
}
else
{
// UDP connection
connection.datagramChannel.SendTo(
frame.SingleBuffer, connection.targetAddress);
}
if (frame.buffersConsumed())
{
// the first frame (head in the queue) was complmesetely
// sent -> notify its progress callback and remove
// the head from the queue
lock (outgoingFrames)
{
outgoingFrames.RemoveAt(0);
}
MessageProgressCallback callback =
frame.messageProgressCallback;
if (callback != null)
{
callback.progress(frame.byteCount, frame.totalByteCount);
}
if (logCallback != null)
{
if (logLevel == LogEventArgs.LogLevel.HIGH)
{
logCallback.Log(LogEventArgs.LogLevel.HIGH,
"Frame sent:"
+ " target: " + target
+ " tid: " + frame.transportId
+ " fid: " + frame.frameNumber
+ " size: "
+ frame.byteCount + "/" + frame.totalByteCount);
}
}
}
}
