arm.py 文件源码

def _activate_command(self, cmd):
        """Use the shared `threading.Event` instance to signal a mini
        fulfillment shadow command to the running Control thread.
        """
        self.last_state = self.active_state
        self.active_state = cmd
        log.info("[arm._activate_command] last_state='{0}' state='{1}'".format(
            self.last_state, cmd))

        if self.active_state == 'run':
            log.info("[arm._activate_command] START RUN")
            self.cmd_event.set()
        elif self.active_state == 'stop':
            log.info("[arm._activate_command] STOP")
            self.cmd_event.clear()
        return