Linux C 获取进程的退出值

来源：互联网发布：淘宝上的pvc地板好不好编辑：程序博客网时间：2024/05/16 19:13

如以下代码所示:

/***************************************************************************** *  Copyright          :  All Rights Reserved. * *  Date               :  2013-03-14 15:11:48 *  Author/Corporation :  Dengzhaoqun *  Email              :  dengzhaoqun@163.com *****************************************************************************/#include <stdio.h>#include <stdlib.h>#include <string.h>#include <sys/types.h>#include <sys/wait.h>#include <unistd.h>#include <errno.h>int main(int argc, char *argv[]){pid_t pid;int stat;int exit_code;pid = fork();if(pid == 0){sleep(3);exit(5);}else if( pid < 0 ){fprintf(stderr, "fork failed: %s", strerror(errno));return -1;}wait(&stat);// 等待一个子进程结束if(WIFEXITED(stat))// 如果子进程通过 return, exit, _exit 正常结束, WIFEXITED() 返回 true{exit_code = WEXITSTATUS(stat);printf("child's exit_code: %d\n", exit_code);}return 0;}

参考: "man 2 wait"