[reSIProcate] Exception encountered when using reSIProcate in a multi-threaded program

[Andy Agarwal]

Hi,
 
Let me first describe how i'm using reSIProcate (ver. 0.90.5019).
 
1. There is a global SipStack object available to all threads in the
program.
2. There is one dedicated 'receiver' thread which is the one doing the
following in a loop -
while (true)
{       
  FdSet fdset;
  g_sipStack.buildFdSet(fdset);
  int err = fdset.selectMilliSeconds(20);
  assert (err != -1);
  g_sipStack.process(fdset);
  SharedPtr<SipMessage> receivedMsg(g_sipStack.receive());
  if (receivedMsg == NULL) continue;
 
  ... Figure out what message this is ...
  ... Post a message to the thread that is handling this call...
}
3. There are many 'call' threads that are using the the global SipStack
object and calling the send method on it (e.g.
g_sipStack.send(*msgInvite),...). For now all they do is send an INVITE,
wait for an OK, send an ACK and then send a BYE shortly after that and
wait for the OK for the bye. Thats it.
4. When you run the program, it wil spawn a bunch of the above 'call'
threads and will wait for them to run and exit.
 
So now, if i run my program in Debug mode, i encounter this exception
after a few calls have already been made successfully -
"Assertion failed in TransactionState::processClientNonInvite -
TransactionState.cxx, line 433".
The call stack is as follows - 'Receiver thread' is calling
sipStack.process which is in turn calling TransactionController::process
which then calls TransactionState::process which believes that the
current state is - ClientNonInvite so it calls
TransactionState::processClientNonInvite which then fails this
assertion.
 
If i run this program in Release mode, then it works fine.
 
I'm guessing i'm not using the stack in the right way (for a
multithreaded program). Can anyone help me here ?
 
thanks,
andy
 
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