add getConferenceSize function (to get conference size before joining)

git-svn-id: http://svn.berlios.de/svnroot/repos/sems/trunk@560 8eb893ce-cfd4-0310-b710-fb5ebe64c474

core/AmConferenceStatus.cpp

@@ -67,6 +67,20 @@ AmConferenceChannel* AmConferenceStatus::getChannel(const string& cid,
   return ch;
 }
 
+size_t AmConferenceStatus::getConferenceSize(const string& cid) {
+
+  cid2s_mut.lock();
+  map<string,AmConferenceStatus*>::iterator it = cid2status.find(cid);
+
+  size_t res = 0;
+  if(it != cid2status.end())
+    res = it->second->channels.size();
+
+  cid2s_mut.unlock();
+
+  return res;
+}
+
 void AmConferenceStatus::postConferenceEvent(const string& cid, 
 					     int event_id, const string& sess_id) {
   AmConferenceStatus*  st = 0;

core/AmConferenceStatus.h

@@ -114,6 +114,8 @@ public:
 
   static void postConferenceEvent(const string& cid, int event_id, 
 				  const string& sess_id);
+
+  static size_t getConferenceSize(const string& cid);
 };
 
 #endif