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Diffstat (limited to 'resize/resize2fs.h')
| -rw-r--r-- | resize/resize2fs.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/resize/resize2fs.h b/resize/resize2fs.h new file mode 100644 index 0000000..96a878a --- /dev/null +++ b/resize/resize2fs.h @@ -0,0 +1,190 @@ +/* + * 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); + + |