#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SPIN_HPP_INCLUDED
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#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SPIN_HPP_INCLUDED
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//
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// boost/detail/atomic_count_spin.hpp
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//
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// Copyright (c) 2013 Peter Dimov
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//
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// Distributed under the Boost Software License, Version 1.0.
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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#include <boost/smart_ptr/detail/spinlock_pool.hpp>
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#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
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#include <boost/config/pragma_message.hpp>
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BOOST_PRAGMA_MESSAGE("Using spinlock-based atomic_count")
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#endif
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namespace boost
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{
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namespace detail
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{
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class atomic_count
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{
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private:
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public:
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explicit atomic_count( long v ): value_( v )
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{
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}
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long operator++()
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{
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spinlock_pool<0>::scoped_lock lock( &value_ );
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return ++value_;
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}
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long operator--()
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{
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spinlock_pool<0>::scoped_lock lock( &value_ );
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return --value_;
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}
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operator long() const
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{
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spinlock_pool<0>::scoped_lock lock( &value_ );
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return value_;
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}
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private:
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atomic_count(atomic_count const &);
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atomic_count & operator=(atomic_count const &);
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long value_;
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};
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} // namespace detail
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} // namespace boost
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#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SPIN_HPP_INCLUDED
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