robot_monitor.py 文件源码

def shutdown(self):
        """
        This needs to be called whenever this class terminates.
        This closes all the instances on all trees.
        Also unregisters ROS' subscriber, stops timer.
        """
        rospy.logdebug('RobotMonitorWidget in shutdown')

        names = self._inspectors.keys()
        for name in names:
            self._inspectors[name].close()

        if self._timeline:
            self._timeline.shutdown()

        self._timer.stop()
        del self._timer