套接字关闭并重新绑定-如何避免长时间等待? [英] Socket shutdown and rebind - How to avoid long wait?

问题描述

我正在使用python中的套接字工作，并且在开发阶段，我需要经常终止并重新启动程序.

I'm working with socket in python, and being in development stage I need to kill and restart my program frequently.

问题在于，一旦杀死了我的python脚本，我就必须等待很长时间才能重新绑定侦听套接字.这是重现该问题的摘录:

The issue is that once killed my python script, I've to wait long time to be able to rebind the listen socket. Here's a snippet to reproduce the problem:

#!/usr/bin/env python3                                                          

import socket

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((socket.gethostname(), 4321))
try:
    s.listen(5)
    while True:
        (a, b) = s.accept()
        print(a.recv(1000))
except KeyboardInterrupt:
    print("Closing")
    s.shutdown(socket.SHUT_RDWR)
    s.close()

按C-z键运行例外代码，并调用shutdown和close函数，但是直到套接字超时(GNU/Linux环境)后，我才能重新启动程序.

Hitting C-z runs the except code, calling shutdown and close functions, but I'm not able to restart my program until the socket timeout (GNU/Linux environment).

如何避免这种情况?

推荐答案

我不确定如何在Python中执行此操作，但是您想设置SO_REUSEADDR套接字选项.

I'm not sure how to do it in Python, but you want to set the SO_REUSEADDR socket option.

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