SO_KEEPALIVE

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我是靠谱客的博主文静往事，最近开发中收集的这篇文章主要介绍SO_KEEPALIVE，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

if  tcp_keepalive:
                # 启用KeepAlive选项
                sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
                # TCP_KEEPCNT:判定断开前的KeepAlive探测次数 
                if tcp_keepcnt:
                    sock.setsockopt(socket.SOL_TCP, socket.TCP_KEEPCNT,
                                    tcp_keepcnt)
                # TCP_KEEPIDLE: 开始首次KeepAlive探测前的TCP空闲时间
                if tcp_keepidle:
                    sock.setsockopt(socket.SOL_TCP, socket.TCP_KEEPIDLE,
                                    tcp_keepidle)
                # TCP_KEEPINTVL:两次KeepAlive探测间的时间间隔
                if tcp_keepintvl:
                    sock.setsockopt(socket.SOL_TCP, socket.TCP_KEEPINTVL,
                                    tcp_keepintvl)