]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | // |
2 | // detail/atomic_count.hpp | |
3 | // ~~~~~~~~~~~~~~~~~~~~~~~ | |
4 | // | |
b32b8144 | 5 | // Copyright (c) 2003-2017 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
7c673cae FG |
6 | // |
7 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
8 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
9 | // | |
10 | ||
11 | #ifndef BOOST_ASIO_DETAIL_ATOMIC_COUNT_HPP | |
12 | #define BOOST_ASIO_DETAIL_ATOMIC_COUNT_HPP | |
13 | ||
14 | #if defined(_MSC_VER) && (_MSC_VER >= 1200) | |
15 | # pragma once | |
16 | #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) | |
17 | ||
18 | #include <boost/asio/detail/config.hpp> | |
19 | ||
20 | #if !defined(BOOST_ASIO_HAS_THREADS) | |
21 | // Nothing to include. | |
22 | #elif defined(BOOST_ASIO_HAS_STD_ATOMIC) | |
23 | # include <atomic> | |
24 | #else // defined(BOOST_ASIO_HAS_STD_ATOMIC) | |
25 | # include <boost/detail/atomic_count.hpp> | |
26 | #endif // defined(BOOST_ASIO_HAS_STD_ATOMIC) | |
27 | ||
28 | namespace boost { | |
29 | namespace asio { | |
30 | namespace detail { | |
31 | ||
32 | #if !defined(BOOST_ASIO_HAS_THREADS) | |
33 | typedef long atomic_count; | |
34 | inline void increment(atomic_count& a, long b) { a += b; } | |
35 | #elif defined(BOOST_ASIO_HAS_STD_ATOMIC) | |
36 | typedef std::atomic<long> atomic_count; | |
37 | inline void increment(atomic_count& a, long b) { a += b; } | |
38 | #else // defined(BOOST_ASIO_HAS_STD_ATOMIC) | |
39 | typedef boost::detail::atomic_count atomic_count; | |
40 | inline void increment(atomic_count& a, long b) { while (b > 0) ++a, --b; } | |
41 | #endif // defined(BOOST_ASIO_HAS_STD_ATOMIC) | |
42 | ||
43 | } // namespace detail | |
44 | } // namespace asio | |
45 | } // namespace boost | |
46 | ||
47 | #endif // BOOST_ASIO_DETAIL_ATOMIC_COUNT_HPP |