/*
 * Copyright (C) 2020 BfaCore
 *
 * 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 2 of the License, or (at your
 * option) any later version.
 *
 * This program 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 General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _REFMANAGER_H
#define _REFMANAGER_H
//=====================================================

#include "Dynamic/LinkedList.h"
#include "Dynamic/LinkedReference/Reference.h"

template <class TO, class FROM>
class RefManager : public LinkedListHead
{
    public:
        typedef LinkedListHead::Iterator<Reference<TO, FROM>> iterator;
        RefManager() { }

        Reference<TO, FROM>* getFirst()             { return static_cast<Reference<TO, FROM>*>(LinkedListHead::getFirst()); }

        Reference<TO, FROM> const* getFirst() const { return static_cast<Reference<TO, FROM> const*>(LinkedListHead::getFirst()); }

        iterator begin() { return iterator(getFirst()); }
        iterator end()   { return iterator(nullptr); }

        virtual ~RefManager()
        {
            clearReferences();
        }

        void clearReferences()
        {
            while (Reference<TO, FROM>* ref = getFirst())
                ref->invalidate();
        }
};

//=====================================================
#endif
