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/***************************************************************************
* Copyright (C) 2011 by Roberto Maar *
* robi@users.berlios.de *
* *
* 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., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
// The Magic functions for ext4 need a small stack to the cache found extents
// Extent_db.h contains the header for it.
#ifndef EXTENT_DB_H
#define EXTENT_DB_H
/* ext3/4 libraries */
#include <ext2fs/ext2fs.h>
struct extent_area {
blk_t blocknr;
__u16 depth;
blk_t l_start;
blk_t l_end;
blk_t start_b;
blk_t end_b;
__u16 len;
__u64 size;
__u32 b_count;
};
struct extent_db_item {
struct extent_db_item *next;
struct extent_area *entry;
struct extent_db_item *last;
};
struct extent_db_t {
struct extent_db_item *next;
__u32 count;
__u16 max_depth;
ext2fs_block_bitmap d_bmap;
};
struct extent_area* new_extent_area();
struct extent_db_t* extent_db_init(ext2fs_block_bitmap);
int extent_db_add (struct extent_db_t* db, struct extent_area*, int);
int extent_db_del(struct extent_db_t* ,blk_t);
void extent_db_clear(struct extent_db_t*);
__u32 extentd_db_find( struct extent_db_t*, __u32, struct extent_area*);
#endif
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