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glibc  2.9
tst-once1.c
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00001 /* Copyright (C) 2002 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <pthread.h>
00021 #include <stdio.h>
00022 
00023 
00024 static pthread_once_t once = PTHREAD_ONCE_INIT;
00025 
00026 static int global;
00027 
00028 static void
00029 once_handler (void)
00030 {
00031   ++global;
00032 }
00033 
00034 
00035 static int
00036 do_test (void)
00037 {
00038   pthread_once (&once, once_handler);
00039   pthread_once (&once, once_handler);
00040 
00041   if (global != 1)
00042     {
00043       printf ("global = %d, expected 1\n", global);
00044       return 1;
00045     }
00046 
00047   return 0;
00048 }
00049 
00050 #define TEST_FUNCTION do_test ()
00051 #include "../test-skeleton.c"