无涯教程-Perl - setsockopt函数

描述

此函数将SocketoptionsOPTNAME的值设置为SOCKET上指定级别的OPTVAL值。您需要导入Socket模块,以获取Tabl中显示的OPTNAME的有效值

语法

以下是此函数的简单语法-

setsockopt SOCKET, LEVEL, OPTNAME, OPTVAL

返回值

如果失败,此函数返回undef；如果成功,则返回1。

OPTNAME 	描述
SO_DEBUG 	Enable/disable recording of debugging information.
SO_REUSEADDR 	Enable/disable local address reuse.
SO_KEEPALIVE 	Enable/disable keep connections alive.
SO_DONTROUTE 	Enable/disable routing bypass for outgoing messages.
SO_LINGER 	Linger on close if data is present.
SO_BROADCAST 	Enable/disable permission to transmit broadcast messages.
SO_OOBINLINE 	Enable/disable reception of out-of-band data in band.
SO_SNDBUF 	Set buffer size for output.
SO_RCVBUF 	Set buffer size for input.
SO_TYPE 	Get the type of the socket (get only).
SO_ERROR 	Get and clear error on the socket (get only).

参考链接

https://www.learnfk.com/perl/perl-setsockopt.html