singleton_manager.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_MANAGER_H__
#define __SINGLETON_MANAGER_H__

#include <stack>
#include "types.h"


class CSingletonBase;


class CSingletonManager
{
     private :
        std::stack<CSingletonBase *> m_InstancesList;

        CSingletonManager(){}

        ~CSingletonManager()
        {
                while( !m_InstancesList.empty() )
                {
                        m_InstancesList.top()->_Kill();
                        m_InstancesList.pop();
                }
        }

     public :
        static void Add( CSingletonBase * Singleton )
        {
                static CSingletonManager Instance;
                Instance.m_InstancesList.push(Singleton);
        }

        static const uint NumberOfInstances()
        {
                static CSingletonManager Instance;
                return Instance.m_InstancesList.size();
        }
};

#endif //__SINGLETON_MANAGER_H__

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