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/*
* resize2fs.h --- ext2 resizer header file
*
* Copyright (C) 1997, 1998 by Theodore Ts'o and
* PowerQuest, Inc.
*
* Copyright (C) 1999, 2000 by Theodore Ts'o
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Public
* License.
* %End-Header%
*/
#include <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdlib.h>
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#if HAVE_ERRNO_H
#include <errno.h>
#endif
#if EXT2_FLAT_INCLUDES
#include "ext2_fs.h"
#include "ext2fs.h"
#include "e2p.h"
#else
#include "ext2fs/ext2_fs.h"
#include "ext2fs/ext2fs.h"
#include "e2p/e2p.h"
#endif
#ifdef ENABLE_NLS
#include <libintl.h>
#include <locale.h>
#define _(a) (gettext (a))
#ifdef gettext_noop
#define N_(a) gettext_noop (a)
#else
#define N_(a) (a)
#endif
#ifndef NLS_CAT_NAME
#define NLS_CAT_NAME "e2fsprogs"
#endif
#ifndef LOCALEDIR
#define LOCALEDIR "/usr/share/locale"
#endif
#else
#define _(a) (a)
#define N_(a) a
#endif
/*
* For the extent map
*/
typedef struct _ext2_extent *ext2_extent;
/*
* For the simple progress meter
*/
typedef struct ext2_sim_progress *ext2_sim_progmeter;
/*
* Flags for the resizer; most are debugging flags only
*/
#define RESIZE_DEBUG_IO 0x0001
#define RESIZE_DEBUG_BMOVE 0x0002
#define RESIZE_DEBUG_INODEMAP 0x0004
#define RESIZE_DEBUG_ITABLEMOVE 0x0008
#define RESIZE_DEBUG_RTRACK 0x0010
#define RESIZE_DEBUG_MIN_CALC 0x0020
#define RESIZE_PERCENT_COMPLETE 0x0100
#define RESIZE_VERBOSE 0x0200
#define RESIZE_ENABLE_64BIT 0x0400
#define RESIZE_DISABLE_64BIT 0x0800
/*
* This structure is used for keeping track of how much resources have
* been used for a particular resize2fs pass.
*/
struct resource_track {
const char *desc;
struct timeval time_start;
struct timeval user_start;
struct timeval system_start;
void *brk_start;
unsigned long long bytes_read;
unsigned long long bytes_written;
};
/*
* The core state structure for the ext2 resizer
*/
typedef struct ext2_resize_struct *ext2_resize_t;
struct ext2_resize_struct {
ext2_filsys old_fs;
ext2_filsys new_fs;
ext2fs_block_bitmap reserve_blocks;
ext2fs_block_bitmap move_blocks;
ext2_extent bmap;
ext2_extent imap;
blk64_t needed_blocks;
int flags;
char *itable_buf;
/*
* For the block allocator
*/
blk64_t new_blk;
int alloc_state;
/*
* For the progress meter
*/
errcode_t (*progress)(ext2_resize_t rfs, int pass,
unsigned long cur,
unsigned long max);
void *prog_data;
};
/*
* Progress pass numbers...
*/
#define E2_RSZ_EXTEND_ITABLE_PASS 1
#define E2_RSZ_BLOCK_RELOC_PASS 2
#define E2_RSZ_INODE_SCAN_PASS 3
#define E2_RSZ_INODE_REF_UPD_PASS 4
#define E2_RSZ_MOVE_ITABLE_PASS 5
/* prototypes */
extern errcode_t resize_fs(ext2_filsys fs, blk64_t *new_size, int flags,
errcode_t (*progress)(ext2_resize_t rfs,
int pass, unsigned long cur,
unsigned long max));
extern errcode_t adjust_fs_info(ext2_filsys fs, ext2_filsys old_fs,
ext2fs_block_bitmap reserve_blocks,
blk64_t new_size);
extern blk64_t calculate_minimum_resize_size(ext2_filsys fs, int flags);
extern void adjust_new_size(ext2_filsys fs, blk64_t *sizep);
/* extent.c */
extern errcode_t ext2fs_create_extent_table(ext2_extent *ret_extent,
__u64 size);
extern void ext2fs_free_extent_table(ext2_extent extent);
extern errcode_t ext2fs_add_extent_entry(ext2_extent extent,
__u64 old_loc, __u64 new_loc);
extern __u64 ext2fs_extent_translate(ext2_extent extent, __u64 old_loc);
extern void ext2fs_extent_dump(ext2_extent extent, FILE *out);
extern errcode_t ext2fs_iterate_extent(ext2_extent extent, __u64 *old_loc,
__u64 *new_loc, __u64 *size);
/* main.c */
extern char *program_name;
/* online.c */
extern errcode_t online_resize_fs(ext2_filsys fs, const char *mtpt,
blk64_t *new_size, int flags);
/* resource_track.c */
extern void init_resource_track(struct resource_track *track, const char *desc,
io_channel channel);
extern void print_resource_track(ext2_resize_t rfs,
struct resource_track *track,
io_channel channel);
/* sim_progress.c */
extern errcode_t ext2fs_progress_init(ext2_sim_progmeter *ret_prog,
const char *label,
int labelwidth, int barwidth,
__u32 maxdone, int flags);
extern void ext2fs_progress_update(ext2_sim_progmeter prog,
__u32 current);
extern void ext2fs_progress_close(ext2_sim_progmeter prog);
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