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/*************************************************************** -*- c++ -*-
* Copyright (c) 2003,2004 by Marcel Wiesweg *
* *
* 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. *
* *
***************************************************************************/
#ifndef __PACKEDSTORAGE_H
#define __PACKEDSTORAGE_H
#include "legacystorage.h"
class PackedStorage : public LegacyStorage {
public:
PackedStorage(int maxMB);
virtual void getFilename(char *buffer, int bufLength, PageID page);
virtual StorageHandle openForWriting(PageID page);
virtual StorageHandle openForReading(PageID page, bool countAsAccess);
protected:
struct PageAddress {
bool operator==(const PageID &id) const
{ return page==id.page && subPage==id.subPage; }
void operator=(const PageID &id)
{ page=id.page; subPage=id.subPage; }
unsigned int page;
unsigned int subPage;
};
bool seekTo(PageID page, int fd, bool create);
void registerFile(PageID page);
};
#endif
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