一、接口介绍getpid():获取当前进程号getppid():获取父进程号代码示例#include <stdio.h>#include <sys/types.h>#include <unistd.h>int main(void){ pid_t p1 = -1, p2 = -1; printf("hello.\n"); p1 = getpid(); printf("pid = %d.\n", p1); p2 = ge......
admin 2023-10-13
概述getpid≥tppid都是与进程ID相关的函数正文函数getpid函数原型pid_t getpid(void);参数无返回值返回当前进程ID函数getppid函数原型pid_t getppid(void);参数无返回值返回当前进程的父进程ID测试代码int main(void){ pid_t Mypid,Myppid; Mypid = getp......
admin 2023-10-13
getpid用于得到当前进程的idgetppid用于得到当前进程的父进程的id#include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <sys/wait.h>int main(){ pid_t pid = fork(); if(pid < 0) {//fork failed printf("fork failed"); } else if(_getpid......
admin 2023-10-13
c++ getpid函数If we are working on the processes, signals related programming using C language in Linux; we require process ids which can be created through the code by using some functions. Therefore, ..._c++ getpid...
admin 2023-10-13
#include <unistd.h>pid_t fork(void);作用:创建一个子进程。到目前为止,我们可以直到两种创建进程的方法:1. 通过执行二进制文件来创建一个进程,如:./a.out /bin/ls;2.通过fork函数来创建一个子进程。该函数没有形参,返回值类......
admin 2023-10-13
getpid():获取当前进程ID pid_t getpid(void);getppid 函数:获取当前进程的父进程 ID pid_t getppid(void);#include <stdio.h>#include <stdlib.h>#include <unistd.h>int var = 100; //全局变量int main(void){ pid_t pid; pid = fork(); // 创建一个子进......
admin 2023-10-13
友情链接申请要求: 不违法不降权 权重相当 请联系QQ:737597453