python 龙卷风使未来

Posted 2021-05-09

#!/usr/bin/env python

import tornado.httpserver
import tornado.ioloop
import tornado.options
import tornado.web

from tornado import gen
from tornado.httpclient import AsyncHTTPClient

import time
import urllib2

from tornado.options import define, options

define("port", default=8888, help="run on the given port", type=int)


@tornado.concurrent.return_future
def calculate(callback):
    start_time = time.time()
    res = urllib2.urlopen("https://www.baidu.com/")
    print time.time()-start_time
    callback(res)

class MainHandler(tornado.web.RequestHandler):

    @tornado.gen.coroutine
    def get(self):
        start_time = time.time()
        res = yield [calculate(), calculate()]
        print time.time()-start_time


def main():
    tornado.options.parse_command_line()
    application = tornado.web.Application([
        (r"/", MainHandler),
    ])
    http_server = tornado.httpserver.HTTPServer(application)
    http_server.listen(options.port)
    tornado.ioloop.IOLoop.current().start()


if __name__ == "__main__":
    main()