v1/__atomic/fence.h

0001 //===----------------------------------------------------------------------===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008
0009 #ifndef _LIBCPP___ATOMIC_FENCE_H
0010 #define _LIBCPP___ATOMIC_FENCE_H
0011
0012 #include <__atomic/memory_order.h>
0013 #include <__atomic/support.h>
0014 #include <__config>
0015
0016 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
0017 #  pragma GCC system_header
0018 #endif
0019
0020 _LIBCPP_BEGIN_NAMESPACE_STD
0021
0022 inline _LIBCPP_HIDE_FROM_ABI void atomic_thread_fence(memory_order __m) _NOEXCEPT { __cxx_atomic_thread_fence(__m); }
0023
0024 inline _LIBCPP_HIDE_FROM_ABI void atomic_signal_fence(memory_order __m) _NOEXCEPT { __cxx_atomic_signal_fence(__m); }
0025
0026 _LIBCPP_END_NAMESPACE_STD
0027
0028 #endif // _LIBCPP___ATOMIC_FENCE_H