347                                 threading.currentThread())

   347                                 threading.currentThread())

   348     def shutdown(self):

   348     def shutdown(self):

   349         """called on server stop event to properly close opened sessions and

   349         """called on server stop event to properly close opened sessions and

   350         connections

   350         connections

   351         """

   351         """

   352         self._shutting_down = True

   353         self._shutting_down = True

   353         if isinstance(self._looping_tasks, tuple): # if tasks have been started

   354         if isinstance(self._looping_tasks, tuple): # if tasks have been started

   354             for looptask in self._looping_tasks:

   355             for looptask in self._looping_tasks:

   355                 self.info('canceling task %s...', looptask.name)

   356                 self.info('canceling task %s...', looptask.name)

   356                 looptask.cancel()

   357                 looptask.cancel()