协程在Socket上的应用

# coding=utf-8

import sys
import socket
import time
import gevent
from gevent import socket, monkey

monkey.patch_all()

def server(port):
    s = socket.socket()
    s.bind(‘0.0.0.0‘, port)
    s.listen(500)
    while True:
        cli, addr = s.accept()
        gevent.spawn(handle_request, cli)


def handle_request(conn):
    try:
        while True:
            data = conn.recv(1024)
            print ‘recv:‘, data
            conn.send(data)
            if not data:
                conn.shutdown(socket.SHUT_WR)
    except Exception as e:
        print e
    finally:
        conn.close()


if __name__ == ‘__main__‘:
    server(8001)

# coding=utf-8

HOST = ‘localhost‘
PORT = 8001
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))
while True:
    msg = raw_input(‘>>:‘)
    s.sendall(msg)
    data = s.recv(1024)
    print ‘Received‘, data
s.close()