mirror of
https://github.com/mpv-player/mpv
synced 2024-12-18 04:45:33 +00:00
33 lines
1.3 KiB
C
33 lines
1.3 KiB
C
/*
|
|
* This file is part of mpv.
|
|
* Copyright (c) 2013 Stefano Pigozzi <stefano.pigozzi@gmail.com>
|
|
*
|
|
* mpv 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 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* mpv 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with mpv. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
// At this point both gcc and clang had __sync_synchronize support for some
|
|
// time. We only support a full memory barrier.
|
|
|
|
#include "config.h"
|
|
|
|
#if HAVE_ATOMIC_BUILTINS
|
|
# define mp_memory_barrier() __atomic_thread_fence(__ATOMIC_SEQ_CST)
|
|
# define mp_atomic_add_and_fetch(a, b) __atomic_add_fetch(a, b,__ATOMIC_SEQ_CST)
|
|
#elif HAVE_SYNC_BUILTINS
|
|
# define mp_memory_barrier() __sync_synchronize()
|
|
# define mp_atomic_add_and_fetch(a, b) __sync_add_and_fetch(a, b)
|
|
#else
|
|
# error "this should have been a configuration error, report a bug please"
|
|
#endif
|