libatomic/flag.c

   1 /* Copyright (C) 2015-2021 Free Software Foundation, Inc.
   2
   3    This file is part of the GNU Atomic Library (libatomic).
   4
   5    Libatomic is free software; you can redistribute it and/or modify it
   6    under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    Libatomic is distributed in the hope that it will be useful, but WITHOUT ANY
  11    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  12    FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13    more details.
  14
  15    Under Section 7 of GPL version 3, you are granted additional
  16    permissions described in the GCC Runtime Library Exception, version
  17    3.1, as published by the Free Software Foundation.
  18
  19    You should have received a copy of the GNU General Public License and
  20    a copy of the GCC Runtime Library Exception along with this program;
  21    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  22    <http://www.gnu.org/licenses/>.  */
  23
  24 #include "libatomic_i.h"
  25
  26 #include <stdatomic.h>
  27
  28 /* Out-of-line versions of <stdatomic.h> flag functions.  */
  29
  30 /* Atomically set *OBJECT to true, returning the previous value.  */
  31
  32 _Bool
  33 (atomic_flag_test_and_set) (volatile atomic_flag *object)
  34 {
  35   return atomic_flag_test_and_set (object);
  36 }
  37
  38 /* Atomically set *OBJECT to true, returning the previous value, with
  39    memory affected according to ORDER.  */
  40
  41 _Bool
  42 (atomic_flag_test_and_set_explicit) (volatile atomic_flag *object,
  43                                      memory_order order)
  44 {
  45   return atomic_flag_test_and_set_explicit (object, order);
  46 }
  47
  48 /* Atomically set *OBJECT to false.  */
  49
  50 void
  51 (atomic_flag_clear) (volatile atomic_flag *object)
  52 {
  53   atomic_flag_clear (object);
  54 }
  55
  56 /* Atomically set *OBJECT to false, with memory affected according to
  57    ORDER.  */
  58
  59 void
  60 (atomic_flag_clear_explicit) (volatile atomic_flag *object,
  61                               memory_order order)
  62 {
  63   return atomic_flag_clear_explicit (object, order);
  64 }