// todo should be in a behave block
// then we wouldn't be messing with stream seq numbers.
private Chunk[] dcepDeal(SCTPStream s, DataChunk dc, DCOpen dcep)
{
Chunk[] rep = null;
Logger.Debug("dealing with a decp for stream " + dc.getDataAsString());
if (!dcep.isAck())
{
Logger.Debug("decp is not an ack... ");
SCTPStreamBehaviour behave = dcep.mkStreamBehaviour();
s.setBehave(behave);
s.setLabel(dcep.getLabel());
lock (s) {
int seqIn = s.getNextMessageSeqIn();
s.setNextMessageSeqIn(seqIn + 1);
int seqOut = s.getNextMessageSeqOut();
s.setNextMessageSeqOut(seqOut + 1);
}
rep = new Chunk[1];
DataChunk ack = dc.mkAck(dcep);
s.outbound(ack);
ack.setTsn(_nearTSN++);
// check rollover - will break at maxint.
rep[0] = ack;
}
else
{
Logger.Debug("got a dcep ack for " + s.getLabel());
SCTPStreamBehaviour behave = dcep.mkStreamBehaviour();
s.setBehave(behave);
lock (s) {
int seqIn = s.getNextMessageSeqIn();
s.setNextMessageSeqIn(seqIn + 1);
int seqOut = s.getNextMessageSeqOut();
s.setNextMessageSeqOut(seqOut + 1);
}
}
return(rep);
}
public void run()
{
Logger.Debug("delegated message delivery from stream of type " + _stream.GetType().Name);
byte[] data = _data;
if (_li != null)
{
switch (_pPid)
{
case DataChunk.WEBRTCBINARYEMPTY:
data = new byte[0];
goto case DataChunk.WEBRTCBINARY;
case DataChunk.WEBRTCBINARY:
if (typeof(SCTPByteStreamListener).IsAssignableFrom(_li.GetType()))
{
((SCTPByteStreamListener)_li).onMessage(_stream, data);
_delivered = true;
}
break;
case DataChunk.WEBRTCstringEMPTY:
data = new byte[0];
goto case DataChunk.WEBRTCstring;
case DataChunk.WEBRTCstring:
_li.onMessage(_stream, System.Text.Encoding.ASCII.GetString(_data));
_delivered = true;
break;
}
}
if (!_delivered)
{
Logger.Debug("Undelivered message to " + (_stream == null ? "null stream" : _stream.getLabel()) + " via " + (_li == null ? "null listener" : _li.GetType().Name) + " ppid is " + _pPid);
}
}
