cppdb/mutex.h

//                                                                             
//  Copyright (C) 2010-2011  Artyom Beilis (Tonkikh) <artyomtnk@yahoo.com>     
//                                                                             
//  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)
//
//  or (at your opinion) under:
//
//                               The MIT License
//                 (See accompanying file MIT.txt or a copy at
//              http://www.opensource.org/licenses/mit-license.php)
//
#ifndef CPPDB_MUTEX_H
#define CPPDB_MUTEX_H

#include <cppdb/defs.h>

namespace cppdb {

        class CPPDB_API mutex {
                mutex(mutex const &);
                void operator=(mutex const  &);
        public:
                class guard;
                mutex();
                ~mutex();
                void lock();
                void unlock();
        private:
                void *mutex_impl_;
        };

        class mutex::guard {
                guard(guard const &);
                void operator=(guard const &);
        public:
                guard(mutex &m) : m_(&m)
                {
                        m_->lock();
                }
                ~guard()
                {
                        m_->unlock();
                }
        private:
                mutex *m_;
        };
}
#endif