further enhancement in Source

dream/simulation/Source.py

@@ -67,7 +67,9 @@ class EntityGenerator(Process):
             self.victim.getActiveObjectQueue().append(entity)            # append the entity to the resource 
             self.victim.numberOfArrivals+=1                              # we have one new arrival
             G.numberOfEntities+=1
-            self.victim.entityCreated.signal(entity)
+            # if there is only one entity in the Source send entityCreated signal
+            if len(self.victim.getActiveObjectQueue())==1: 
+                self.victim.entityCreated.signal(entity)
             yield hold,self,self.victim.calculateInterarrivalTime() # wait until the next arrival
 
 #============================================================================
@@ -131,11 +133,8 @@ class Source(CoreObject):
             if self.entityCreated.signalparam:
                 self.appendEntity(self.entityCreated.signalparam)
                 self.entityCreated.signalparam=None
-#                 if self.signalReceiver():
-#                         continue
-                if len(self.getActiveObjectQueue())==1:
-                    if self.signalReceiver():
-                        continue
+                if self.signalReceiver():
+                    continue
             # otherwise, if the receiver requests availability then try to signal him if there is anything to dispose of
             if self.canDispose.signalparam:
                 self.canDispose.signalparam=None