boost/smart_ptr/detail/atomic_count_spin.hpp

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