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9194610f42
Flags are set on the initial I/O and passed to any callbacks that may in turn issue further I/O using the inherited flags.
97 lines
3.2 KiB
C
97 lines
3.2 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _LVM_TEXT_IMPORT_EXPORT_H
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#define _LVM_TEXT_IMPORT_EXPORT_H
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#include "config.h"
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#include "metadata.h"
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#include "lvmcache.h"
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#include <stdio.h>
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/*
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* Constants to identify files this code can parse.
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*/
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#define CONTENTS_FIELD "contents"
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#define CONTENTS_VALUE "Text Format Volume Group"
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#define FORMAT_VERSION_FIELD "version"
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#define FORMAT_VERSION_VALUE 1
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/*
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* VGs, PVs and LVs all have status bitsets, we gather together
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* common code for reading and writing them.
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*/
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enum pv_vg_lv_e {
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PV_FLAGS = 1,
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VG_FLAGS,
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LV_FLAGS,
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};
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#define COMPATIBLE_FLAG 0x01
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#define STATUS_FLAG 0x02
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#define SEGTYPE_FLAG 0x04
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struct text_vg_version_ops {
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int (*check_version) (const struct dm_config_tree * cf);
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struct volume_group *(*read_vg) (struct format_instance * fid,
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const struct dm_config_tree *cf,
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unsigned use_cached_pvs,
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unsigned allow_lvmetad_extensions);
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void (*read_desc) (struct dm_pool * mem, const struct dm_config_tree *cf,
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time_t *when, char **desc);
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int (*read_vgsummary) (const struct format_type *fmt,
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const struct dm_config_tree *cft,
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struct lvmcache_vgsummary *vgsummary);
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};
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struct text_vg_version_ops *text_vg_vsn1_init(void);
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int print_flags(char *buffer, size_t size, enum pv_vg_lv_e type, int mask, uint64_t status);
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int read_flags(uint64_t *status, enum pv_vg_lv_e type, int mask, const struct dm_config_value *cv);
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int print_segtype_lvflags(char *buffer, size_t size, uint64_t status);
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int read_segtype_lvflags(uint64_t *status, char *segtype_str);
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int text_vg_export_file(struct volume_group *vg, const char *desc, FILE *fp);
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size_t text_vg_export_raw(struct volume_group *vg, const char *desc, char **buf);
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struct volume_group *text_vg_import_file(struct format_instance *fid,
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const char *file,
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time_t *when, char **desc);
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struct volume_group *text_vg_import_fd(struct format_instance *fid,
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const char *file,
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struct cached_vg_fmtdata **vg_fmtdata,
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unsigned *use_previous_vg,
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int single_device,
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struct device *dev, int primary_mda,
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off_t offset, uint32_t size,
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off_t offset2, uint32_t size2,
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checksum_fn_t checksum_fn,
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uint32_t checksum, unsigned ioflags,
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time_t *when, char **desc);
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int text_vgsummary_import(const struct format_type *fmt,
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struct device *dev, dev_io_reason_t reason,
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off_t offset, uint32_t size,
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off_t offset2, uint32_t size2,
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checksum_fn_t checksum_fn,
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int checksum_only, unsigned ioflags,
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struct lvmcache_vgsummary *vgsummary,
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lvm_callback_fn_t process_vgsummary_fn,
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void *process_vgsummary_context);
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#endif
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