gcc/libatomic/flag.c

65 lines
2.0 KiB
C

/* Copyright (C) 2015-2017 Free Software Foundation, Inc.
This file is part of the GNU Atomic Library (libatomic).
Libatomic is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
Libatomic 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 General Public License for
more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "libatomic_i.h"
#include <stdatomic.h>
/* Out-of-line versions of <stdatomic.h> flag functions. */
/* Atomically set *OBJECT to true, returning the previous value. */
_Bool
(atomic_flag_test_and_set) (volatile atomic_flag *object)
{
return atomic_flag_test_and_set (object);
}
/* Atomically set *OBJECT to true, returning the previous value, with
memory affected according to ORDER. */
_Bool
(atomic_flag_test_and_set_explicit) (volatile atomic_flag *object,
memory_order order)
{
return atomic_flag_test_and_set_explicit (object, order);
}
/* Atomically set *OBJECT to false. */
void
(atomic_flag_clear) (volatile atomic_flag *object)
{
atomic_flag_clear (object);
}
/* Atomically set *OBJECT to false, with memory affected according to
ORDER. */
void
(atomic_flag_clear_explicit) (volatile atomic_flag *object,
memory_order order)
{
return atomic_flag_clear_explicit (object, order);
}