相当于延迟的龙卷风

问题描述

tornado 中是否有一个等效的命令用于延迟函数而不影响主进程休眠(因此即使在主线程正在处理新函数调用时回调也会执行)

Is there an equivalent command in tornado for delay function without affecting the main process to sleep (thus the callbacks would execute even when the main thread is dealying a new function call)

推荐答案

试试这个:

import time
from tornado.ioloop import IOLoop
from tornado.web import RequestHandler, asynchronous
from tornado import gen

class MyHandler(RequestHandler):
    @asynchronous
    @gen.engine
    def get(self):
        self.write("sleeping .... ")
        self.flush()
        # Do nothing for 5 sec
        yield gen.Task(IOLoop.instance().add_timeout, time.time() + 5)
        self.write("I'm awake!")
        self.finish()

取自此处.

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