singleton.h

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/*
    Smacky - Music emulator on speakers
    Copyright (C) 2006 - Nicolas Lermé

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 3 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/

#ifndef __SINGLETON_H__
#define __SINGLETON_H__

#include <cstdio>
#include "singleton_base.h"
#include "singleton_manager.h"


template <typename T> class CSingleton : public CSingletonBase
{
     private :
        static T * m_Instance;

        void _Kill()
        {
                delete m_Instance;
                m_Instance = NULL;
        }

     protected :
        CSingleton(){}
        virtual ~CSingleton(){}

     public :
        static T * Instance()
        {
                if( !m_Instance )
                {
                        m_Instance = new T;
                        CSingletonManager::Add(m_Instance);
                }

                return m_Instance;
        }
};

template <typename T> T * CSingleton<T>::m_Instance = NULL;

#endif //__SINGLETON_H__

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