init.py 文件源码

def shutdown(ioloop, server):
    ''' ??server

    :param server: tornado.httpserver.HTTPServer
    '''
    logging.info(
        "HTTP interpreter service will shutdown in %ss...", 1)
    server.stop()

    deadline = time.time() + 1

    def stop_loop():
        ''' ????loop
        '''
        now = time.time()
        if now < deadline and (ioloop._callbacks or ioloop._timeouts):
            ioloop.add_timeout(now + 1, stop_loop)
        else:
            # ?????? callback ? timeout ?
            ioloop.stop()
            logging.info('Shutdown!')

    stop_loop()