#include <stdio.h>
#include"common.h"
int main()
{
//定义一些变量
pid_t pid;
int status;
//分岔口创建父子进程
pid =fork();
if(pid<0) //创建进程失败
{
printf("fork failed\n");
exit(1); //不正常退出
}
else if(pid==0) //跑子进程
{
sleep(10);//休眠10s钟
exit(0);
}
else
{
wait(&status); //阻塞等待子进程结束,释放子进程让其脱离僵尸状态
//把子进程的退出状态,状态status
printf("子进程的退出状态:%d\n",WEXITSTATUS(status));
}
return 0;
}
Linux multi-process creation and blocking waiting
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Origin blog.csdn.net/weixin_50188452/article/details/110275475
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