sim/testsuite/sim/cris/c/pipe1.c

   1 /* Check for proper pipe semantics at corner cases.
   2 #notarget: cris*-*-elf
   3 */
   4
   5 #include <stddef.h>
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <unistd.h>
   9 #include <sched.h>
  10 #include <signal.h>
  11 #include <sys/types.h>
  12 #include <sys/wait.h>
  13 #include <limits.h>
  14
  15 int main (void)
  16 {
  17   int i;
  18   int filemax;
  19
  20 #ifdef OPEN_MAX
  21   filemax = OPEN_MAX;
  22 #else
  23   filemax = sysconf (_SC_OPEN_MAX);
  24 #endif
  25
  26   if (filemax < 10)
  27     abort ();
  28
  29   /* Check that pipes don't leak file descriptors.  */
  30   for (i = 0; i < filemax * 10; i++)
  31     {
  32       int pip[2];
  33       if (pipe (pip) != 0)
  34         {
  35           perror ("pipe");
  36           abort ();
  37         }
  38
  39       if (close (pip[0]) != 0 || close (pip[1]) != 0)
  40         {
  41           perror ("close");
  42           abort ();
  43         }
  44     }
  45   printf ("pass\n");
  46   exit (0);
  47 }