nptl/tst-sysconf.c

   1 /* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <pthread.h>
  21 #include <stdio.h>
  22 #include <unistd.h>
  23
  24
  25 static int
  26 do_test (void)
  27 {
  28   puts ("We expect no limits");
  29   /* We have no fixed limit on the number of threads.  Make sure the
  30      headers tell the right story.  */
  31 #ifdef PTHREAD_THREADS_MAX
  32   printf ("Header report maximum number of threads = %lu\n",
  33           (unsigned long int) PTHREAD_THREADS_MAX);
  34   return 1;
  35 #else
  36   long int r = sysconf (_SC_THREAD_THREADS_MAX);
  37   if (r != -1)
  38     {
  39       printf ("sysconf(_SC_THREAD_THREADS_MAX) return %ld\n", r);
  40       return 1;
  41     }
  42 #endif
  43
  44   return 0;
  45 }
  46
  47 #define TEST_FUNCTION do_test ()
  48 #include "../test-skeleton.c"