nptl/tst-once1.c

   1 /* Copyright (C) 2002 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
  23
  24 static pthread_once_t once = PTHREAD_ONCE_INIT;
  25
  26 static int global;
  27
  28 static void
  29 once_handler (void)
  30 {
  31   ++global;
  32 }
  33
  34
  35 static int
  36 do_test (void)
  37 {
  38   pthread_once (&once, once_handler);
  39   pthread_once (&once, once_handler);
  40
  41   if (global != 1)
  42     {
  43       printf ("global = %d, expected 1\n", global);
  44       return 1;
  45     }
  46
  47   return 0;
  48 }
  49
  50 #define TEST_FUNCTION do_test ()
  51 #include "../test-skeleton.c"