sim/testsuite/cris/c/pipe3.c

   1 /* Check that TRT happens when error on pipe call.
   2 #progos: linux
   3 */
   4
   5 #include <stddef.h>
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <unistd.h>
   9 #include <errno.h>
  10 #include <limits.h>
  11
  12 int main (void)
  13 {
  14   int i;
  15   int filemax;
  16
  17 #ifdef OPEN_MAX
  18   filemax = OPEN_MAX;
  19 #else
  20   filemax = sysconf (_SC_OPEN_MAX);
  21 #endif
  22
  23   /* Check that TRT happens when error on pipe call.  */
  24   for (i = 0; i < filemax + 1; i++)
  25     {
  26       int pip[2];
  27       if (pipe (pip) != 0)
  28         {
  29           /* Shouldn't happen too early.  */
  30           if (i < filemax / 2 - 3 - 1)
  31             {
  32               fprintf (stderr, "i: %d\n", i);
  33               abort ();
  34             }
  35           if (errno != EMFILE)
  36             {
  37               perror ("pipe");
  38               abort ();
  39             }
  40           goto ok;
  41         }
  42     }
  43   abort ();
  44
  45 ok:
  46   printf ("pass\n");
  47   exit (0);
  48 }