private void HandleFragmentationMessageTerminated(object sender, FragmentationMessageTerminatedEventArgs args)
{
if (sender is InboundFragmentationMessage)
{
if ((args.FinalState != FragmentationMessageState.Final) || (args.FinalStatus != Status.Success))
{
// do nothing.
return;
}
InboundFragmentationMessage inMsg = sender as InboundFragmentationMessage;
Frame receivedMessage = inMsg.RetrieveData();
if (receivedMessage != null)
{
DataIndicationHandler handler = _dataIndicationHandler;
if (handler != null)
{
handler.Invoke(this, inMsg.Source, inMsg.Destination, receivedMessage);
}
else
{
Frame.Release(ref receivedMessage);
}
}
}
else if (sender is OutboundFragmentationMessage)
{
OutboundFragmentationMessage outMsg, newOutMsg;
lock (_lock)
{
outMsg = sender as OutboundFragmentationMessage;
ushort previousDestination = outMsg.Destination;
_transmissionCharacteristicStorage.UpdateTransmissionCharacteristic(outMsg.Destination, outMsg.TimeoutForResending,
outMsg.MaxFragmentsBeforeAck);
// remove active message from repository
_outboundAssociations.RemoveFragmentationMessage(outMsg);
// try to start new message (if possible)
DataRequestItem newItem;
newOutMsg = null;
if (_dataRequestQueueSet.Dequeue(previousDestination, out newItem))
{
newOutMsg = CreateNewOutboundMessage(newItem);
}
}
// after releasing the lock, call method in FragmentationMessage class.
outMsg.NotifySender(args.FinalState, args.FinalStatus);
outMsg.Dispose();
if (newOutMsg != null)
{
newOutMsg.SendNextDataFragment(true);
}
}
}
