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/*
* 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)
*
* (C) Copyright 2012 Vicente J. Botet Escriba
* (C) Copyright 2013 Andrey Semashev
*/
/*!
* \file locks/shared_lock_guard.hpp
*
* \brief This header defines an exclusive lock guard.
*/
#ifndef BOOST_SYNC_LOCKS_SHARED_LOCK_GUARD_HPP_INCLUDED_
#define BOOST_SYNC_LOCKS_SHARED_LOCK_GUARD_HPP_INCLUDED_
#include <boost/sync/detail/config.hpp>
#ifdef BOOST_HAS_PRAGMA_ONCE
#pragma once
#endif
#include <boost/sync/locks/lock_options.hpp>
#include <boost/sync/locks/shared_lock_guard_fwd.hpp>
#include <boost/sync/detail/header.hpp>
namespace boost {
namespace sync {
/*!
* \brief A shared lock scope guard
*/
template< typename Mutex >
class shared_lock_guard
{
public:
typedef Mutex mutex_type;
private:
mutex_type& m_mutex;
public:
explicit shared_lock_guard(mutex_type& m) : m_mutex(m)
{
m.lock_shared();
}
shared_lock_guard(mutex_type& m, adopt_lock_t) : m_mutex(m)
{
}
~shared_lock_guard()
{
m_mutex.unlock_shared();
}
BOOST_DELETED_FUNCTION(shared_lock_guard(shared_lock_guard const&))
BOOST_DELETED_FUNCTION(shared_lock_guard& operator= (shared_lock_guard const&))
};
} // namespace sync
} // namespace boost
#include <boost/sync/detail/footer.hpp>
#endif // BOOST_SYNC_LOCKS_SHARED_LOCK_GUARD_HPP_INCLUDED_
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