/*------------------------------------------------------------------*/
/* testforkexit.c                                                   */
/* Author: Bob Dondero                                              */
/* The fork system call used with the exit function.                */
/*------------------------------------------------------------------*/

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>

int main(int argc, char *argv[])
{
   pid_t iPid;

   printf("Parent process (%d)\n", (int)getpid());

   fflush(NULL);
   iPid = fork();
   if (iPid == -1) {perror(argv[0]); return EXIT_FAILURE; }

   if (iPid == 0)
   {
      /* This code is executed by only the child process. */
      printf("Child process (%d)\n", (int)getpid());
      exit(0);
   }

   /* This code is executed by only the parent process. */
   printf("Parent process (%d)\n", (int)getpid());

   return 0;
}

/*------------------------------------------------------------------*/

/* Sample executions:

$ gcc -Wall -ansi -pedantic testforkexit.c -o testforkexit

$ testforkexit
Parent process (14767)
Parent process (14767)
Child process (14768)

$ testforkexit
Parent process (14769)
Child process (14770)
Parent process (14769)

$ testforkexit
Parent process (14798)
Child process (14799)
Parent process (14798)

*/