#define __USE_LARGEFILE64
#define _LARGEFILE64_SOURCE
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <dirent.h>
#include<string.h>
#include <pthread.h>
#include <sys/wait.h>
#include <signal.h>
int main (int argc, char *argv[])
{
int flag = 1;
pid_t pid;
pid = fork();
while (1)
{
if(1 == flag)
{
flag = 0;
if (pid == 0)
{
printf("in child,pid:%d,ppid:%d,then exit child...\n",getpid(),getppid());
exit (0);
}
else
{
printf("in parent,pid:%d,ppid:%d,then waitpid...\n",getpid(),getppid());
#if 1
/*when the 3rd para is 0 WUNTRACED WSTOPPED WCONTINUED,child process won‘t defunct*/
waitpid(pid, NULL, 0);
#else
/*when the 3rd para is WNOHANG WEXITED WNOWAIT,child process will defunct*/
waitpid(pid, NULL, WNOHANG);
#endif
}
}
}
}
fork,defuct僵尸示例
原文：http://blog.csdn.net/oywoywoyw/article/details/41961481
