1/*
2 * lcnalloc.h - Exports for cluster (de)allocation. Originated from the Linux-NTFS
3 *		project.
4 *
5 * Copyright (c) 2002 Anton Altaparmakov
6 * Copyright (c) 2004 Yura Pakhuchiy
7 *
8 * This program/include file is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as published
10 * by the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program/include file is distributed in the hope that it will be
14 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program (in the main directory of the NTFS-3G
20 * distribution in the file COPYING); if not, write to the Free Software
21 * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
22 */
23
24#ifndef _NTFS_LCNALLOC_H
25#define _NTFS_LCNALLOC_H
26
27#include "types.h"
28#include "runlist.h"
29#include "volume.h"
30
31/**
32 * enum NTFS_CLUSTER_ALLOCATION_ZONES -
33 */
34typedef enum {
35	FIRST_ZONE	= 0,	/* For sanity checking. */
36	MFT_ZONE	= 0,	/* Allocate from $MFT zone. */
37	DATA_ZONE	= 1,	/* Allocate from $DATA zone. */
38	LAST_ZONE	= 1,	/* For sanity checking. */
39} NTFS_CLUSTER_ALLOCATION_ZONES;
40
41extern runlist *ntfs_cluster_alloc(ntfs_volume *vol, VCN start_vcn, s64 count,
42		LCN start_lcn, const NTFS_CLUSTER_ALLOCATION_ZONES zone);
43
44extern int ntfs_cluster_free_from_rl(ntfs_volume *vol, runlist *rl);
45extern int ntfs_cluster_free_basic(ntfs_volume *vol, s64 lcn, s64 count);
46
47extern int ntfs_cluster_free(ntfs_volume *vol, ntfs_attr *na, VCN start_vcn,
48		s64 count);
49
50#endif /* defined _NTFS_LCNALLOC_H */
51
52