handles failed sendInvite properly

git-svn-id: http://svn.berlios.de/svnroot/repos/sems/trunk@393 8eb893ce-cfd4-0310-b710-fb5ebe64c474

core/AmSession.cpp

@@ -690,7 +690,7 @@ void AmSession::sendReinvite(bool updateSDP)
   }
 }
 
-void AmSession::sendInvite() 
+int AmSession::sendInvite() 
 {
   // set local IP first, so that IP is set when 
   // getLocalPort/setLocalPort may bind 
@@ -698,7 +698,7 @@ void AmSession::sendInvite()
   // generate SDP
   string sdp_body;
   sdp.genRequest(AmConfig::LocalIP,rtp_str.getLocalPort(),sdp_body);
-  dlg.invite("", "application/sdp", sdp_body);
+  return dlg.invite("", "application/sdp", sdp_body);
 }
 
 void AmSession::setOnHold(bool hold)

core/AmSession.h

@@ -266,7 +266,7 @@ public:
   /** send a Re-INVITE (if connected) */
   void sendReinvite(bool updateSDP = true);
   /** send an INVITE */
-  void sendInvite();
+  int sendInvite();
 
   /** set the session on/off hold */
   void setOnHold(bool hold);

core/AmSessionContainer.cpp

@@ -186,7 +186,13 @@ AmSession* AmSessionContainer::startSessionUAC(AmSipRequest& req, AmArg* session
       session->setCallgroup(req.from_tag);
 
       session->setNegotiateOnReply(true);
-      session->sendInvite();
+      if (int err = session->sendInvite()) {
+	ERROR("INVITE could not be sent: error code = %d.\n", 
+	      err);
+	delete session;
+	as_mut.unlock();
+	return NULL;
+      }
       session->start();
 
       addSession_unsafe(req.callid,req.from_tag,req.from_tag,session);