code: def _notify_exit_process(self, event):
          
          self.__cleanup_process(event)
          self.__cleanup_thread(event)
          return True
docs: Notify the termination of a process.
  
          @type  event: L{ExitProcessEvent}
          @param event: Exit process event.
  
          @rtype:  bool
          @return: C{True} to call the user-defined handler, C{False} otherwise.