test/clib/vfork.c

   1 /*
   2     Copyright © 1995-2014, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <unistd.h>
   7 #include <stdio.h>
   8 #include <aros/debug.h>
   9 #include <sys/wait.h>
  10 #include "test.h"
  11
  12 int main()
  13 {
  14     pid_t pid;
  15     int retval = RETURN_OK;
  16
  17     pid = vfork();
  18     if((int) pid > 0)
  19     {
  20         int status = -1;
  21         printf("I'm parent, I have a child with pid %d\n", (int) pid);
  22         waitpid(pid, &status, 0);
  23         if (status != 1)
  24             return RETURN_FAIL;
  25     }
  26     else if(pid == 0)
  27     {
  28         printf("I'm child\n");
  29         _exit(1);
  30     }
  31     else
  32     {
  33         TEST(0);
  34     }
  35
  36     pid = vfork();
  37     if((int) pid > 0)
  38     {
  39         printf("I'm parent, I have a first child with pid %d\n", (int) pid);
  40         pid_t pid2 = vfork();
  41         if((int) pid2 > 0)
  42         {
  43             int status = -1;
  44             printf("I'm parent, I have a second child with pid %d\n", (int) pid2);
  45             waitpid(pid2, &status, 0);
  46             if (status != 2)
  47                 return RETURN_FAIL;
  48         }
  49         else if(pid2 == 0)
  50         {
  51             printf("I'm second child\n");
  52             _exit(2);
  53         }
  54         waitpid(pid, NULL, 0);
  55     }
  56     else if(pid == 0)
  57     {
  58         pid_t pid2 = vfork();
  59         int retval = 3;
  60         if((int) pid2 > 0)
  61         {
  62             printf("I'm child, I have my child with pid2 %d\n", (int) pid2);
  63             int status = -1;
  64             waitpid(pid2, &status, 0);
  65             if (status != 4)
  66                 retval = RETURN_FAIL;
  67         }
  68         else if(pid2 == 0)
  69         {
  70             printf("I'm the child of a child\n");
  71             _exit(4);
  72         }
  73         _exit(retval);
  74     }
  75     else
  76     {
  77         TEST(0);
  78     }
  79
  80     return retval;
  81 }
  82
  83 void cleanup()
  84 {
  85 }