private void processMessage(PmlElement Message)
{
if (Message is PmlString)
{
String cmd = Message.ToString();
if (cmd == "PING")
{
_WriteMessage("PONG");
}
else if (cmd == "PONG")
{
}
}
else if (Message is PmlDictionary)
{
String cmd = Message.GetChild("CMD").ToString();
if (cmd == "SES")
{
processSessionMessage(Message);
}
else if (cmd == "RPL")
{
UInt32 SID = Message.GetChild("SID").ToUInt32();
CSyncRequest SRequest;
lock (_invocations) {
if (!_invocations.TryGetValue(SID, out SRequest))
{
SRequest = null;
}
_invocations.Remove(SID);
}
if (SRequest != null)
{
SRequest.Completed((PmlDictionary)Message);
}
}
else if (cmd == "REQ" || cmd == "MSG")
{
UThreadPool.RunCall(processCall, Message);
}
}
}
private void processSessionMessage(PmlElement Message)
{
//Todo: This function may block or send out PML calls, but incoming packets must be sequenced per channel...
//Todo: Generate semi-unique SIDs for bidirectional links?
UInt32 SID = Message.GetChild("SID").ToUInt32();
byte SCMD = Message.GetChild("SCMD").ToByte();
PmlElement InnerMsg = Message.GetChild("MSG");
SubChannel Session;
lock (_sessions) if (!_sessions.TryGetValue(SID, out Session))
{
Session = null;
}
switch (SCMD)
{
case 0: //Request
if (Session != null)
{
RemoveSession(Session);
Session.CloseIn();
WriteSessionMessage(SID, 2, null);
}
else if (ChannelRequestReceived != null)
{
try {
PmlChannelRequestReceivedEventArgsA ea = new PmlChannelRequestReceivedEventArgsA(this, SID, InnerMsg);
ChannelRequestReceived(this, ea);
ea.RejectIfNotAccepted();
} catch (Exception ex) {
Console.WriteLine("UCIS.Pml.PmlCommunicator.processSessionMessage: exception in ChannelRequestReceived: " + ex.ToString());
WriteSessionMessage(SID, 2, null);
}
}
else
{
WriteSessionMessage(SID, 2, null);
}
break;
case 1: //Message
if (Session != null)
{
Session.MessageIn(InnerMsg);
}
else
{
WriteSessionMessage(SID, 2, null);
}
break;
case 2: //Close
if (Session != null)
{
if (InnerMsg != null && !(InnerMsg is PmlNull))
{
Session.MessageIn(InnerMsg);
}
RemoveSession(Session);
Session.CloseIn();
}
break;
}
}
