[reSIProcate] SipStack process CANCEL problem!

["fancy_xiao"<fancy_xiao@xxxxxxxxxxx>]

resiprocate-devel，你好 
  
When TU send an INVITE to external,then TU send CANCEL to external ,but 
TransationState not received 1xx,  
the stack process the CANCEL,and return INVITE 487, delete the 
ClientTransaction,and ;  
The stack don't terminateClientTransaction and create a TransactionTerminated 
Message to TU!  
Is it a bug ?  

The source Code in TransactionState.cxx:  

               TransactionState* matchingInvite = 
controller.mClientTransactionMap.find(sip->getTransactionId());  
               if (matchingInvite == 0)  
               {  
                  InfoLog (<< "No matching INVITE for incoming (from TU) CANCEL 
to uac");  
                  TransactionState::sendToTU(tu, controller, 
Helper::makeResponse(*sip,481));  
                  delete sip;  
               }  
               else if (matchingInvite->mState == Calling) // CANCEL before 1xx 
received  
               {  
                  WarningLog(<< "You can't CANCEL a request until a provisional 
has been received");  
                  StackLog (<< *matchingInvite);  
                  StackLog (<< *sip);  

                  // if no INVITE had been sent out yet. -- i.e. dns result not 
 
                  // processed yet  

                  // The CANCEL was received before the INVITE was sent  
                  // This can happen in odd cases. Too common to assert.  
                  // Be graceful.  
                  TransactionState::sendToTU(tu, controller, 
Helper::makeResponse(*sip, 200));  
                  
matchingInvite->sendToTU(Helper::makeResponse(*matchingInvite->mMsgToRetransmit,
 487));  

                  delete matchingInvite;  
                  delete sip;  

               }  
  
  
fancy_xiao，fancy_xiao@xxxxxxxxxxx 
2007-05-31