libcxx/include/__atomic/fence.h

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef _LIBCPP___ATOMIC_FENCE_H
  10 #define _LIBCPP___ATOMIC_FENCE_H
  11
  12 #include <__atomic/cxx_atomic_impl.h>
  13 #include <__atomic/memory_order.h>
  14 #include <__config>
  15
  16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  17 #  pragma GCC system_header
  18 #endif
  19
  20 _LIBCPP_BEGIN_NAMESPACE_STD
  21
  22 inline _LIBCPP_HIDE_FROM_ABI
  23 void
  24 atomic_thread_fence(memory_order __m) _NOEXCEPT
  25 {
  26     __cxx_atomic_thread_fence(__m);
  27 }
  28
  29 inline _LIBCPP_HIDE_FROM_ABI
  30 void
  31 atomic_signal_fence(memory_order __m) _NOEXCEPT
  32 {
  33     __cxx_atomic_signal_fence(__m);
  34 }
  35
  36 _LIBCPP_END_NAMESPACE_STD
  37
  38 #endif // _LIBCPP___ATOMIC_FENCE_H