#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <pthread.h>

void MoveToChild(int n)
{
	pid_t pid;

	if ( (pid = fork()) == -1 ) {
		perror("fork()");
		_exit(1);
	} else if ( pid != 0 ) {
		printf("Parent %d [%d] exit.\n", n, getpid());
		_exit(0);
	}

	printf("Child %d [%d] works.\n", n, getpid());
}

void *thread_main(void *args)
{
	int i;
	for (i=0; i<5; i++) MoveToChild(i);
	return NULL;
}

int main()
{
	pthread_t t;
	pthread_create(&t, NULL, thread_main, NULL);
	pthread_join(t, NULL);
	return 0;
}