test/clib/vfork.c

   1 #include <unistd.h>
   2 #include <stdio.h>
   3 #include <aros/debug.h>
   4 #include <sys/wait.h>
   5 #include "test.h"
   6
   7 int main()
   8 {
   9     char *argv0[] = { "Echo", "I'm child", NULL };
  10     char *argv1[] = { "Echo", "I'm the second child of a parent", NULL };
  11     char *argv2[] = { "Echo", "I'm child of a child", NULL };
  12     char *envp[] = { NULL };
  13     pid_t pid;
  14
  15     pid = vfork();
  16     if((int) pid > 0)
  17     {
  18         printf("I'm parent, I have a child with pid %d\n", (int) pid);
  19         waitpid(pid, NULL, 0);
  20     }
  21     else if(pid == 0)
  22     {
  23         execve("C:Echo", argv0, envp);
  24         _exit(1);
  25     }
  26     else
  27     {
  28         TEST(0);
  29     }
  30
  31     pid = vfork();
  32     if((int) pid > 0)
  33     {
  34         printf("I'm parent, I have a first child with pid %d\n", (int) pid);
  35         pid_t pid2 = vfork();
  36         if((int) pid2 > 0)
  37         {
  38             printf("I'm parent, I have a second child with pid %d\n", (int) pid2);
  39             waitpid(pid2, NULL, 0);
  40         }
  41         else if(pid2 == 0)
  42         {
  43             execve("C:Echo", argv1, envp);
  44             _exit(1);
  45         }
  46         waitpid(pid, NULL, 0);
  47     }
  48     else if(pid == 0)
  49     {
  50         printf("I'm child of a parent\n");
  51         pid_t pid2 = vfork();
  52         if((int) pid2 > 0)
  53         {
  54             printf("I'm child, I have my child with pid %d\n", (int) pid2);
  55             waitpid(pid2, NULL, 0);
  56         }
  57         else if(pid2 == 0)
  58         {
  59             execve("C:Echo", argv2, envp);
  60             _exit(1);
  61         }
  62         _exit(0);
  63     }
  64     else
  65     {
  66         TEST(0);
  67     }
  68
  69     return OK;
  70 }
  71
  72 void cleanup()
  73 {
  74 }