don't use TR_queueEmpty anymore.

src/event_dispatcher_start.c

@@ -47,14 +47,16 @@ TR_eventDispatcherStart(TR_EventDispatcher this)
 					(TR_EventSubject)this,
 					TR_DISPATCHER_EVENT_HEARTBEAT,
 					NULL);
-		} else if (TR_queueEmpty(this->events)) {
-			int evtid = TR_EVD_CLIENT == this->mode
-				? TR_DISPATCHER_EVENT_USER_WAIT
-				: TR_DISPATCHER_EVENT_DATA_WAIT;
-
-			event = TR_eventSubjectEmit((TR_EventSubject)this, evtid, NULL);
 		} else {
 			event = TR_queueGet(this->events);
+
+			if (! event) {
+				int evtid = TR_EVD_CLIENT == this->mode
+					? TR_DISPATCHER_EVENT_USER_WAIT
+					: TR_DISPATCHER_EVENT_DATA_WAIT;
+
+				event = TR_eventSubjectEmit((TR_EventSubject)this, evtid, NULL);
+			}
 		}
 
 		handler_queue_hv = TR_hashGetByVal(