一、shutdown()函数 1#include<sys/socket.h>2intshutdown(intsockfd,inthowto);//返回成功为0,出错为-1. 该函数的行为依赖于howto的值 1.SHUT_RD:值为0,关闭连接的读这一半。 2.SHUT_WR:值为1,关闭连接的写这一半。 3.SHUT_RDWR:值为2,连接的读和写都关闭。 终止网络连接的通用方法是调用close函数。
To shut down Linux after a certain period of time, use the command:sudo shutdown -P +30 Enter your password. You canreplace +30with how many minutes you want Linux to wait to shut down. At any time, you can cancel these shutdown commands through the terminal. Just enter the commandsh...
I had to press Cancel on the authentication window in order not to shut down. In order to cancel a pending shutdown , run the command below as root: shutdown -c It is not possible to specify a time argument when canceling a scheduled shutdown. It is however possible to still send a ...
#include<sys/socket.h>int shutdown(int sockfd,int howto); //返回成功为0,出错为-1. 参数说明 该函数的行为依赖于howto的值 SHUT_RD:值为0,关闭连接的读端。 SHUT_WR:值为1,关闭连接的写这一半。 SHUT_RDWR:值为2,连接的读和写都关闭。 终止网络连接的通用方法是调用close函数。但使用shutdown能更...
void tcp_shutdown(struct sock sk, int how){/ We need to grab some memory, and put together a FIN,• and then put it into the queue to be sent.• Tim MacKenzie(tym@dibbler.cs.monash.edu.au) 4 Dec '92.// 不含有SEND_SHUTDOWN，返回，接收方关闭，不发fin */if (!(how & SEND...
把关闭方式 设置到套接口 sk_shutdown 中。 若传输控制块处于其他状态,调用 tcp_shutdown 。 若处于正在连接过程中,则调用 tcp_disconnect 断开连接。 voidtcp_shutdown(structsock*sk,inthow) { /*Weneedtograbsomememory,andputtogetheraFIN, *andthenputitintothequeuetobesent. ...
shutdown [OPTIONS...] [TIME] [WALL...] DESCRIPTION shutdown may be used to halt, power-off or reboot the machine. The first argument may be a time string (whichis usually"now"). Optionally, this may be followed by a wall message to be sent to all logged-inusersbefore going down....
See 6.7 Shutting Down Your System for how to shut down and reboot the system. 请参阅6.7关机和重启系统了解如何关闭和重启系统。 6.4.5 Adding Units to systemd(向systemd添加单元) Adding units to systemd is primarily a matter of creating, then activating and possibly enabling, unit files. You sh...
A system spends most of its time in a single runlevel, but when you shut the machine down, init switches to a different runlevel in order to terminate the system services in an orderly fashion and to tell the kernel to stop 在Linux系统上的任何时刻,都会运行一定的基本进程(如crond和udevd)...
$ sudo shutdown --halt +5 “Attention. The system is going down in five minutes.” Cancel a timed shutdown by using the-coption: $ sudo shutdown -c You can also use thesystemctlcommand to shut down the system. For example, typesystemctl haltorsystemctl poweroffto achieve similar resul...