From: Reid Thompson <reid.thompson@...>
Date: 2009-09-09T22:08:28+09:00
Subject: Re: Duplicate this code in C

On Wed, 2009-09-09 at 15:35 +0900, barjunk wrote:
> Is there a way to duplicate this code using C?
> 
> http://pastie.org/610698
> 
> The goal is to launch multiple ruby processes from a C program.
> 
> Mike B.
> 

from http://www.gidforums.com/t-11552.html

mod to meet needs....google for more info...

#include <stdio.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <stdlib.h>
int main()
{
    int i;
    pid_t cpid;
    pid_t child_pid;
    cpid = fork();

    switch (cpid) {
        case -1: printf("Fork failed; cpid == -1\n");
                 break;

        case 0: child_pid = getpid();
                for (i = 0; i < 10; i++) {
                    printf("%d: this is the child, pid = %d\n", i, child_pid);
                    sleep(1);
                }
                exit(0);

        default: printf("This is the parent: waiting for %d to finish\n", cpid);
                 waitpid(cpid, NULL, 0);
                 printf("Ttttthat's all, folks\n");
    }
    return 0;
}