SGReferencedData.h

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/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * Copyright (C) 2012 Soeren Sonnenburg
 */
#ifndef __SGREFERENCED_DATA_H__
#define __SGREFERENCED_DATA_H__

#include <shogun/lib/config.h>

#include <shogun/lib/common.h>

namespace shogun
{
class RefCount;

class SGReferencedData
{
    public:
        SGReferencedData(bool ref_counting=true);

        SGReferencedData(const SGReferencedData &orig);

        SGReferencedData& operator= (const SGReferencedData &orig);

        virtual ~SGReferencedData();

        int32_t ref_count();

    protected:
        void copy_refcount(const SGReferencedData &orig);

        int32_t ref();

        int32_t unref();

        virtual void copy_data(const SGReferencedData &orig)=0;

        virtual void init_data()=0;

        virtual void free_data()=0;

    private:

        RefCount* m_refcount;
};
}
#endif // __SGREFERENCED_DATA_H__