1/*
2 * Distributed under the Boost Software License, Version 1.0.
3 * (See accompanying file LICENSE_1_0.txt or copy at
4 * http://www.boost.org/LICENSE_1_0.txt)
5 *
6 * Copyright (c) 2011 Helge Bahmann
7 * Copyright (c) 2013-2014 Andrey Semashev
8 */
9/*!
10 * \file atomic/detail/lockpool.hpp
11 *
12 * This header contains declaration of the lockpool used to emulate atomic ops.
13 */
14
15#ifndef BOOST_ATOMIC_DETAIL_LOCKPOOL_HPP_INCLUDED_
16#define BOOST_ATOMIC_DETAIL_LOCKPOOL_HPP_INCLUDED_
17
18#include <boost/atomic/detail/config.hpp>
19#include <boost/atomic/detail/link.hpp>
20
21#ifdef BOOST_HAS_PRAGMA_ONCE
22#pragma once
23#endif
24
25namespace boost {
26namespace atomics {
27namespace detail {
28
29struct lockpool
30{
31 class scoped_lock
32 {
33 void* m_lock;
34
35 public:
36 explicit BOOST_ATOMIC_DECL scoped_lock(const volatile void* addr) BOOST_NOEXCEPT;
37 BOOST_ATOMIC_DECL ~scoped_lock() BOOST_NOEXCEPT;
38
39 BOOST_DELETED_FUNCTION(scoped_lock(scoped_lock const&))
40 BOOST_DELETED_FUNCTION(scoped_lock& operator=(scoped_lock const&))
41 };
42
43 static BOOST_ATOMIC_DECL void thread_fence() BOOST_NOEXCEPT;
44 static BOOST_ATOMIC_DECL void signal_fence() BOOST_NOEXCEPT;
45};
46
47} // namespace detail
48} // namespace atomics
49} // namespace boost
50
51#endif // BOOST_ATOMIC_DETAIL_LOCKPOOL_HPP_INCLUDED_
52