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ara-mdk / platform / external / e2fsprogs / 5032db56bfdaa99311a5fb37e185ce9fc658c6e6 / . / resize / resize2fs.h
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The Android Open Source Project0a84e9c2008-12-17 18:04:13 -0800[diff] [blame]1/*
2 * resize2fs.h --- ext2 resizer header file
3 *
4 * Copyright (C) 1997, 1998 by Theodore Ts'o and
5 * PowerQuest, Inc.
6 *
7 * Copyright (C) 1999, 2000 by Theosore Ts'o
8 *
9 * %Begin-Header%
10 * This file may be redistributed under the terms of the GNU Public
11 * License.
12 * %End-Header%
13 */
14
15#include <stdio.h>
16#include <string.h>
17#ifdef HAVE_UNISTD_H
18#include <unistd.h>
19#endif
20#include <stdlib.h>
21#ifdef HAVE_SYS_TYPES_H
22#include <sys/types.h>
23#endif
24#ifdef HAVE_SYS_TIME_H
25#include <sys/time.h>
26#endif
27#if HAVE_ERRNO_H
28#include <errno.h>
29#endif
30
31#if EXT2_FLAT_INCLUDES
32#include "ext2_fs.h"
33#include "ext2fs.h"
34#include "e2p.h"
35#else
36#include "ext2fs/ext2_fs.h"
37#include "ext2fs/ext2fs.h"
38#include "e2p/e2p.h"
39#endif
40
41#ifdef ENABLE_NLS
42#include <libintl.h>
43#include <locale.h>
44#define _(a) (gettext (a))
45#ifdef gettext_noop
46#define N_(a) gettext_noop (a)
47#else
48#define N_(a) (a)
49#endif
50#ifndef NLS_CAT_NAME
51#define NLS_CAT_NAME "e2fsprogs"
52#endif
53#ifndef LOCALEDIR
54#define LOCALEDIR "/usr/share/locale"
55#endif
56#else
57#define _(a) (a)
58#define N_(a) a
59#endif
60
61
62/*
63 * For the extent map
64 */
65typedef struct _ext2_extent *ext2_extent;
66
67/*
68 * For the simple progress meter
69 */
70typedef struct ext2_sim_progress *ext2_sim_progmeter;
71
72/*
73 * Flags for the resizer; most are debugging flags only
74 */
75#define RESIZE_DEBUG_IO 0x0001
76#define RESIZE_DEBUG_BMOVE 0x0002
77#define RESIZE_DEBUG_INODEMAP 0x0004
78#define RESIZE_DEBUG_ITABLEMOVE 0x0008
79
80#define RESIZE_PERCENT_COMPLETE 0x0100
81#define RESIZE_VERBOSE 0x0200
82
83/*
84 * The core state structure for the ext2 resizer
85 */
86typedef struct ext2_resize_struct *ext2_resize_t;
87
88struct ext2_resize_struct {
89 ext2_filsys old_fs;
90 ext2_filsys new_fs;
91 ext2fs_block_bitmap reserve_blocks;
92 ext2fs_block_bitmap move_blocks;
93 ext2_extent bmap;
94 ext2_extent imap;
95 int needed_blocks;
96 int flags;
97 char *itable_buf;
98
99 /*
100 * For the block allocator
101 */
102 blk_t new_blk;
103 int alloc_state;
104
105 /*
106 * For the progress meter
107 */
108 errcode_t (*progress)(ext2_resize_t rfs, int pass,
109 unsigned long cur,
110 unsigned long max);
111 void *prog_data;
112};
113
114/*
115 * Progress pass numbers...
116 */
117#define E2_RSZ_EXTEND_ITABLE_PASS 1
118#define E2_RSZ_BLOCK_RELOC_PASS 2
119#define E2_RSZ_INODE_SCAN_PASS 3
120#define E2_RSZ_INODE_REF_UPD_PASS 4
121#define E2_RSZ_MOVE_ITABLE_PASS 5
122
123
124/* prototypes */
125extern errcode_t resize_fs(ext2_filsys fs, blk_t *new_size, int flags,
126 errcode_t (*progress)(ext2_resize_t rfs,
127 int pass, unsigned long cur,
128 unsigned long max));
129
130extern errcode_t adjust_fs_info(ext2_filsys fs, ext2_filsys old_fs,
131 blk_t new_size);
132
133
134/* extent.c */
135extern errcode_t ext2fs_create_extent_table(ext2_extent *ret_extent,
136 int size);
137extern void ext2fs_free_extent_table(ext2_extent extent);
138extern errcode_t ext2fs_add_extent_entry(ext2_extent extent,
139 __u32 old_loc, __u32 new_loc);
140extern __u32 ext2fs_extent_translate(ext2_extent extent, __u32 old_loc);
141extern void ext2fs_extent_dump(ext2_extent extent, FILE *out);
142extern errcode_t ext2fs_iterate_extent(ext2_extent extent, __u32 *old_loc,
143 __u32 *new_loc, int *size);
144
145/* online.c */
146extern errcode_t online_resize_fs(ext2_filsys fs, const char *mtpt,
147 blk_t *new_size, int flags);
148
149/* sim_progress.c */
150extern errcode_t ext2fs_progress_init(ext2_sim_progmeter *ret_prog,
151 const char *label,
152 int labelwidth, int barwidth,
153 __u32 maxdone, int flags);
154extern void ext2fs_progress_update(ext2_sim_progmeter prog,
155 __u32 current);
156extern void ext2fs_progress_close(ext2_sim_progmeter prog);
157
158