Chris@16: //
Chris@16: // detail/atomic_count.hpp
Chris@16: // ~~~~~~~~~~~~~~~~~~~~~~~
Chris@16: //
Chris@101: // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: 
Chris@16: #ifndef BOOST_ASIO_DETAIL_ATOMIC_COUNT_HPP
Chris@16: #define BOOST_ASIO_DETAIL_ATOMIC_COUNT_HPP
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: # pragma once
Chris@16: #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: 
Chris@16: #include <boost/asio/detail/config.hpp>
Chris@16: 
Chris@16: #if !defined(BOOST_ASIO_HAS_THREADS)
Chris@16: // Nothing to include.
Chris@16: #elif defined(BOOST_ASIO_HAS_STD_ATOMIC)
Chris@16: # include <atomic>
Chris@16: #else // defined(BOOST_ASIO_HAS_STD_ATOMIC)
Chris@16: # include <boost/detail/atomic_count.hpp>
Chris@16: #endif // defined(BOOST_ASIO_HAS_STD_ATOMIC)
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace asio {
Chris@16: namespace detail {
Chris@16: 
Chris@16: #if !defined(BOOST_ASIO_HAS_THREADS)
Chris@16: typedef long atomic_count;
Chris@16: inline void increment(atomic_count& a, long b) { a += b; }
Chris@16: #elif defined(BOOST_ASIO_HAS_STD_ATOMIC)
Chris@16: typedef std::atomic<long> atomic_count;
Chris@16: inline void increment(atomic_count& a, long b) { a += b; }
Chris@16: #else // defined(BOOST_ASIO_HAS_STD_ATOMIC)
Chris@16: typedef boost::detail::atomic_count atomic_count;
Chris@16: inline void increment(atomic_count& a, long b) { while (b > 0) ++a, --b; }
Chris@16: #endif // defined(BOOST_ASIO_HAS_STD_ATOMIC)
Chris@16: 
Chris@16: } // namespace detail
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif // BOOST_ASIO_DETAIL_ATOMIC_COUNT_HPP