/*

 * A memory card region accessor.

 *

 * Copyright (C) 2021, 2024 Paul Boddie <paul@boddie.org.uk>

 *

 * 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, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA  02110-1301, USA

 */

#pragma once

#include <stdio.h>

#include <fsserver/accessor.h>

#include "msc_region_operations.h"

/* A memory card region accessor, providing flexpages corresponding to the

   regions within an exposed memory card region or partition. */

class MscRegionAccessor : public Accessor

{

protected:

    MscRegionOperations *_ops;

    uint32_t _start;

    offset_t _size;

    /* Data transfer helper methods. */

    virtual void fill_populated(Flexpage *flexpage);

    virtual void flush_populated(Flexpage *flexpage);

public:

    explicit MscRegionAccessor(MscRegionOperations *ops, uint32_t start_block,

                               uint32_t num_blocks, fileid_t fileid);

    virtual offset_t get_size();

    virtual void set_size(offset_t size);

};

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