glibc/sysdeps/pthread/tst-once1.c

50 lines
1.2 KiB
C

/* Copyright (C) 2002-2023 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <pthread.h>
#include <stdio.h>
static pthread_once_t once = PTHREAD_ONCE_INIT;
static int global;
static void
once_handler (void)
{
++global;
}
static int
do_test (void)
{
pthread_once (&once, once_handler);
pthread_once (&once, once_handler);
if (global != 1)
{
printf ("global = %d, expected 1\n", global);
return 1;
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"