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lvm2/lib/format_text/import-export.h
Zdenek Kabelac 760d1fac55 Add more strict const pointers around config tree
To have better control were the config tree could be modified use more
const pointers and very carefully downcast them back to non-const
(for config tree merge).
2010-12-20 13:12:55 +00:00

89 lines
2.9 KiB
C

/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser 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
*/
#ifndef _LVM_TEXT_IMPORT_EXPORT_H
#define _LVM_TEXT_IMPORT_EXPORT_H
#include "config.h"
#include "lvm-types.h"
#include "metadata.h"
#include <stdio.h>
/*
* Constants to identify files this code can parse.
*/
#define CONTENTS_FIELD "contents"
#define CONTENTS_VALUE "Text Format Volume Group"
#define FORMAT_VERSION_FIELD "version"
#define FORMAT_VERSION_VALUE 1
/*
* VGs, PVs and LVs all have status bitsets, we gather together
* common code for reading and writing them.
*/
enum {
COMPATIBLE_FLAG = 0x0,
VG_FLAGS,
PV_FLAGS,
LV_FLAGS,
STATUS_FLAG = 0x8,
};
struct text_vg_version_ops {
int (*check_version) (const struct config_tree * cf);
struct volume_group *(*read_vg) (struct format_instance * fid,
const struct config_tree *cf,
unsigned use_cached_pvs);
void (*read_desc) (struct dm_pool * mem, const struct config_tree *cf,
time_t *when, char **desc);
const char *(*read_vgname) (const struct format_type *fmt,
const struct config_tree *cft,
struct id *vgid, uint64_t *vgstatus,
char **creation_host);
};
struct text_vg_version_ops *text_vg_vsn1_init(void);
int print_flags(uint64_t status, int type, char *buffer, size_t size);
int read_flags(uint64_t *status, int type, const struct config_value *cv);
char *alloc_printed_tags(struct dm_list *tags);
int read_tags(struct dm_pool *mem, struct dm_list *tags, const struct config_value *cv);
int text_vg_export_file(struct volume_group *vg, const char *desc, FILE *fp);
int text_vg_export_raw(struct volume_group *vg, const char *desc, char **buf);
struct volume_group *text_vg_import_file(struct format_instance *fid,
const char *file,
time_t *when, char **desc);
struct volume_group *text_vg_import_fd(struct format_instance *fid,
const char *file,
struct device *dev,
off_t offset, uint32_t size,
off_t offset2, uint32_t size2,
checksum_fn_t checksum_fn,
uint32_t checksum,
time_t *when, char **desc);
const char *text_vgname_import(const struct format_type *fmt,
struct device *dev,
off_t offset, uint32_t size,
off_t offset2, uint32_t size2,
checksum_fn_t checksum_fn, uint32_t checksum,
struct id *vgid, uint64_t *vgstatus,
char **creation_host);
#endif