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Jeff Thompsonf7d49942013-08-01 16:47:40 -07001#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
2#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
3
4// MS compatible compilers support #pragma once
5
6#if defined(_MSC_VER) && (_MSC_VER >= 1020)
7# pragma once
8#endif
9
10//
Jeff Thompson9939dcd2013-10-15 15:12:24 -070011// ndnboost/detail/atomic_count_win32.hpp
Jeff Thompsonf7d49942013-08-01 16:47:40 -070012//
13// Copyright (c) 2001-2005 Peter Dimov
14//
15// Distributed under the Boost Software License, Version 1.0. (See
16// accompanying file LICENSE_1_0.txt or copy at
17// http://www.boost.org/LICENSE_1_0.txt)
18//
19
Jeff Thompson2277ce52013-08-01 17:34:11 -070020#include <ndnboost/detail/interlocked.hpp>
Jeff Thompsonf7d49942013-08-01 16:47:40 -070021
22namespace ndnboost
23{
24
25namespace detail
26{
27
28class atomic_count
29{
30public:
31
32 explicit atomic_count( long v ): value_( v )
33 {
34 }
35
36 long operator++()
37 {
38 return BOOST_INTERLOCKED_INCREMENT( &value_ );
39 }
40
41 long operator--()
42 {
43 return BOOST_INTERLOCKED_DECREMENT( &value_ );
44 }
45
46 operator long() const
47 {
48 return static_cast<long const volatile &>( value_ );
49 }
50
51private:
52
53 atomic_count( atomic_count const & );
54 atomic_count & operator=( atomic_count const & );
55
56 long value_;
57};
58
59} // namespace detail
60
61} // namespace ndnboost
62
63#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED