#coding=utf-8
#!/usr/bin python
# TCP套接字默认阻塞
# 阻塞模式： 遇到错误不阻止操作
# 非阻塞模式：遇到问题抛出异常

import socket

def test_socket_modes():
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.setblocking(1)
    s.settimeout(0.5)
    s.bind(("127.0.0.1", 0))

    socket_address = s.getsockname()
    print "Trivial Server launched on socket: %s" %str(socket_address)
    while(1):
        s.listen(1)

if __name__ == '__main__':
    test_socket_modes()