Release: 9884b22fc1

__init__.py

@@ -72,6 +72,7 @@ class state_machine(object):
         self.__state_change_callbacks__ = {}
         self.__log_lvl__ = log_lvl
         self.__set_state__(default_state, '__init__')
+        self.__callback_id__ = 0
         for key in kwargs:
             setattr(self, key, kwargs.get(key))
 
@@ -91,7 +92,8 @@ class state_machine(object):
             self.__state_change_callbacks__[state] = {}
         if condition not in self.__state_change_callbacks__[state]:
             self.__state_change_callbacks__[state][condition] = []
-        self.__state_change_callbacks__[state][condition].append((callback, args, kwargs))
+        self.__state_change_callbacks__[state][condition].append((self.__callback_id__, callback, args, kwargs))
+        self.__callback_id__ += 1
 
     def this_state(self):
         """
@@ -182,13 +184,16 @@ class state_machine(object):
         self.__last_transition_condition__ = condition
         self.__time_stamp_state_change__ = timestamp
         self.__conditions_start_time__ = {}
-        for callback, args, kwargs in self.__state_change_callbacks__.get(None, {}).get(None, []):
-            callback(*args, **kwargs)
-        for callback, args, kwargs in self.__state_change_callbacks__.get(target_state, {}).get(None, []):
-            callback(*args, **kwargs)
-        for callback, args, kwargs in self.__state_change_callbacks__.get(None, {}).get(condition, []):
-            callback(*args, **kwargs)
-        for callback, args, kwargs in self.__state_change_callbacks__.get(target_state, {}).get(condition, []):
+        # Callback collect
+        this_state_change_callbacks = self.__state_change_callbacks__.get(None, {}).get(None, [])
+        this_state_change_callbacks.extend(self.__state_change_callbacks__.get(target_state, {}).get(None, []))
+        this_state_change_callbacks.extend(self.__state_change_callbacks__.get(None, {}).get(condition, []))
+        this_state_change_callbacks.extend(self.__state_change_callbacks__.get(target_state, {}).get(condition, []))
+        # Callback sorting
+        this_state_change_callbacks.sort()
+        # Callback execution
+        for cid, callback, args, kwargs in this_state_change_callbacks:
+            logger.debug('Executing callback %d - %s.%s', cid, callback.__module__, callback.__name__)
             callback(*args, **kwargs)
 
     def work(self):