mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-22 17:35:59 +03:00
809 lines
15 KiB
C
809 lines
15 KiB
C
/*
|
|
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
|
|
* Copyright (C) 2004 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 General Public License v.2.
|
|
*
|
|
* You should have received a copy of the GNU 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
|
|
*/
|
|
|
|
#include "lib.h"
|
|
#include "import-export.h"
|
|
#include "metadata.h"
|
|
#include "hash.h"
|
|
#include "pool.h"
|
|
#include "display.h"
|
|
#include "lvm-string.h"
|
|
#include "segtype.h"
|
|
#include "text_export.h"
|
|
|
|
#include <stdarg.h>
|
|
#include <time.h>
|
|
#include <sys/utsname.h>
|
|
|
|
struct formatter;
|
|
typedef int (*out_with_comment_fn) (struct formatter * f, const char *comment,
|
|
const char *fmt, va_list ap);
|
|
typedef void (*nl_fn) (struct formatter * f);
|
|
/*
|
|
* The first half of this file deals with
|
|
* exporting the vg, ie. writing it to a file.
|
|
*/
|
|
struct formatter {
|
|
struct pool *mem; /* pv names allocated from here */
|
|
struct hash_table *pv_names; /* dev_name -> pv_name (eg, pv1) */
|
|
|
|
union {
|
|
FILE *fp; /* where we're writing to */
|
|
struct {
|
|
char *buf;
|
|
uint32_t size;
|
|
uint32_t used;
|
|
} buf;
|
|
} data;
|
|
|
|
out_with_comment_fn out_with_comment;
|
|
nl_fn nl;
|
|
|
|
int indent; /* current level of indentation */
|
|
int error;
|
|
int header; /* 1 => comments at start; 0 => end */
|
|
};
|
|
|
|
static struct utsname _utsname;
|
|
|
|
static void _init(void)
|
|
{
|
|
static int _initialised = 0;
|
|
|
|
if (_initialised)
|
|
return;
|
|
|
|
if (uname(&_utsname)) {
|
|
log_error("uname failed: %s", strerror(errno));
|
|
memset(&_utsname, 0, sizeof(_utsname));
|
|
}
|
|
|
|
_initialised = 1;
|
|
}
|
|
|
|
/*
|
|
* Formatting functions.
|
|
*/
|
|
|
|
#define MAX_INDENT 5
|
|
static void _inc_indent(struct formatter *f)
|
|
{
|
|
if (++f->indent > MAX_INDENT)
|
|
f->indent = MAX_INDENT;
|
|
}
|
|
|
|
static void _dec_indent(struct formatter *f)
|
|
{
|
|
if (!f->indent--) {
|
|
log_error("Internal error tracking indentation");
|
|
f->indent = 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Newline function for prettier layout.
|
|
*/
|
|
static void _nl_file(struct formatter *f)
|
|
{
|
|
fprintf(f->data.fp, "\n");
|
|
}
|
|
|
|
static void _nl_raw(struct formatter *f)
|
|
{
|
|
if (f->data.buf.used >= f->data.buf.size - 1)
|
|
return;
|
|
|
|
*f->data.buf.buf = '\n';
|
|
f->data.buf.buf += 1;
|
|
f->data.buf.used += 1;
|
|
*f->data.buf.buf = '\0';
|
|
|
|
return;
|
|
}
|
|
|
|
#define COMMENT_TAB 6
|
|
static int _out_with_comment_file(struct formatter *f, const char *comment,
|
|
const char *fmt, va_list ap)
|
|
{
|
|
int i;
|
|
char white_space[MAX_INDENT + 1];
|
|
|
|
if (ferror(f->data.fp))
|
|
return 0;
|
|
|
|
for (i = 0; i < f->indent; i++)
|
|
white_space[i] = '\t';
|
|
white_space[i] = '\0';
|
|
fprintf(f->data.fp, white_space);
|
|
i = vfprintf(f->data.fp, fmt, ap);
|
|
|
|
if (comment) {
|
|
/*
|
|
* line comments up if possible.
|
|
*/
|
|
i += 8 * f->indent;
|
|
i /= 8;
|
|
i++;
|
|
|
|
do
|
|
fputc('\t', f->data.fp);
|
|
|
|
while (++i < COMMENT_TAB);
|
|
|
|
fprintf(f->data.fp, comment);
|
|
}
|
|
fputc('\n', f->data.fp);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int _out_with_comment_raw(struct formatter *f, const char *comment,
|
|
const char *fmt, va_list ap)
|
|
{
|
|
int n;
|
|
|
|
n = vsnprintf(f->data.buf.buf, f->data.buf.size - f->data.buf.used,
|
|
fmt, ap);
|
|
|
|
if (n < 0 || (n > f->data.buf.size - f->data.buf.used - 1))
|
|
return 0;
|
|
|
|
f->data.buf.buf += n;
|
|
f->data.buf.used += n;
|
|
|
|
f->nl(f);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Formats a string, converting a size specified
|
|
* in 512-byte sectors to a more human readable
|
|
* form (eg, megabytes). We may want to lift this
|
|
* for other code to use.
|
|
*/
|
|
static int _sectors_to_units(uint64_t sectors, char *buffer, size_t s)
|
|
{
|
|
static const char *_units[] = {
|
|
"Kilobytes",
|
|
"Megabytes",
|
|
"Gigabytes",
|
|
"Terabytes",
|
|
NULL
|
|
};
|
|
|
|
int i;
|
|
double d = (double) sectors;
|
|
|
|
/* to convert to K */
|
|
d /= 2.0;
|
|
|
|
for (i = 0; (d > 1024.0) && _units[i]; i++)
|
|
d /= 1024.0;
|
|
|
|
return lvm_snprintf(buffer, s, "# %g %s", d, _units[i]) > 0;
|
|
}
|
|
|
|
/*
|
|
* Appends a comment giving a size in more easily
|
|
* readable form (eg, 4M instead of 8096).
|
|
*/
|
|
int out_size(struct formatter *f, uint64_t size, const char *fmt, ...)
|
|
{
|
|
char buffer[64];
|
|
va_list ap;
|
|
int r;
|
|
|
|
if (!_sectors_to_units(size, buffer, sizeof(buffer)))
|
|
return 0;
|
|
|
|
va_start(ap, fmt);
|
|
r = f->out_with_comment(f, buffer, fmt, ap);
|
|
va_end(ap);
|
|
|
|
return r;
|
|
}
|
|
|
|
/*
|
|
* Appends a comment indicating that the line is
|
|
* only a hint.
|
|
*/
|
|
int out_hint(struct formatter *f, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
int r;
|
|
|
|
va_start(ap, fmt);
|
|
r = f->out_with_comment(f, "# Hint only", fmt, ap);
|
|
va_end(ap);
|
|
|
|
return r;
|
|
}
|
|
|
|
/*
|
|
* The normal output function.
|
|
*/
|
|
int out_text(struct formatter *f, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
int r;
|
|
|
|
va_start(ap, fmt);
|
|
r = f->out_with_comment(f, NULL, fmt, ap);
|
|
va_end(ap);
|
|
|
|
return r;
|
|
}
|
|
|
|
static int _print_header(struct formatter *f,
|
|
struct volume_group *vg, const char *desc)
|
|
{
|
|
time_t t;
|
|
|
|
t = time(NULL);
|
|
|
|
outf(f, "# Generated by LVM2: %s", ctime(&t));
|
|
outf(f, CONTENTS_FIELD " = \"" CONTENTS_VALUE "\"");
|
|
outf(f, FORMAT_VERSION_FIELD " = %d", FORMAT_VERSION_VALUE);
|
|
f->nl(f);
|
|
|
|
outf(f, "description = \"%s\"", desc);
|
|
f->nl(f);
|
|
outf(f, "creation_host = \"%s\"\t# %s %s %s %s %s", _utsname.nodename,
|
|
_utsname.sysname, _utsname.nodename, _utsname.release,
|
|
_utsname.version, _utsname.machine);
|
|
outf(f, "creation_time = %lu\t# %s", t, ctime(&t));
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int _print_vg(struct formatter *f, struct volume_group *vg)
|
|
{
|
|
char buffer[4096];
|
|
|
|
if (!id_write_format(&vg->id, buffer, sizeof(buffer))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
outf(f, "id = \"%s\"", buffer);
|
|
|
|
outf(f, "seqno = %u", vg->seqno);
|
|
|
|
if (!print_flags(vg->status, VG_FLAGS, buffer, sizeof(buffer))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
outf(f, "status = %s", buffer);
|
|
|
|
if (!list_empty(&vg->tags)) {
|
|
if (!print_tags(&vg->tags, buffer, sizeof(buffer))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
outf(f, "tags = %s", buffer);
|
|
}
|
|
|
|
if (vg->system_id && *vg->system_id)
|
|
outf(f, "system_id = \"%s\"", vg->system_id);
|
|
|
|
if (!out_size(f, (uint64_t) vg->extent_size, "extent_size = %u",
|
|
vg->extent_size)) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
outf(f, "max_lv = %u", vg->max_lv);
|
|
outf(f, "max_pv = %u", vg->max_pv);
|
|
|
|
/* Default policy is NORMAL; INHERIT is meaningless */
|
|
if (vg->alloc != ALLOC_NORMAL && vg->alloc != ALLOC_INHERIT) {
|
|
f->nl(f);
|
|
outf(f, "allocation_policy = \"%s\"",
|
|
get_alloc_string(vg->alloc));
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Get the pv%d name from the formatters hash
|
|
* table.
|
|
*/
|
|
static inline const char *_get_pv_name(struct formatter *f,
|
|
struct physical_volume *pv)
|
|
{
|
|
return (pv) ? (const char *)
|
|
hash_lookup(f->pv_names, dev_name(pv->dev)) : "Missing";
|
|
}
|
|
|
|
static int _print_pvs(struct formatter *f, struct volume_group *vg)
|
|
{
|
|
struct list *pvh;
|
|
struct physical_volume *pv;
|
|
char buffer[4096];
|
|
const char *name;
|
|
|
|
outf(f, "physical_volumes {");
|
|
_inc_indent(f);
|
|
|
|
list_iterate(pvh, &vg->pvs) {
|
|
pv = list_item(pvh, struct pv_list)->pv;
|
|
|
|
if (!(name = _get_pv_name(f, pv))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
f->nl(f);
|
|
outf(f, "%s {", name);
|
|
_inc_indent(f);
|
|
|
|
if (!id_write_format(&pv->id, buffer, sizeof(buffer))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
outf(f, "id = \"%s\"", buffer);
|
|
if (!out_hint(f, "device = \"%s\"", dev_name(pv->dev))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
f->nl(f);
|
|
|
|
if (!print_flags(pv->status, PV_FLAGS, buffer, sizeof(buffer))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
outf(f, "status = %s", buffer);
|
|
|
|
if (!list_empty(&pv->tags)) {
|
|
if (!print_tags(&pv->tags, buffer, sizeof(buffer))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
outf(f, "tags = %s", buffer);
|
|
}
|
|
|
|
outf(f, "pe_start = %" PRIu64, pv->pe_start);
|
|
if (!out_size(f, vg->extent_size * (uint64_t) pv->pe_count,
|
|
"pe_count = %u", pv->pe_count)) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
_dec_indent(f);
|
|
outf(f, "}");
|
|
}
|
|
|
|
_dec_indent(f);
|
|
outf(f, "}");
|
|
return 1;
|
|
}
|
|
|
|
static int _print_segment(struct formatter *f, struct volume_group *vg,
|
|
int count, struct lv_segment *seg)
|
|
{
|
|
char buffer[4096];
|
|
|
|
outf(f, "segment%u {", count);
|
|
_inc_indent(f);
|
|
|
|
outf(f, "start_extent = %u", seg->le);
|
|
if (!out_size(f, (uint64_t) seg->len * vg->extent_size,
|
|
"extent_count = %u", seg->len)) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
f->nl(f);
|
|
outf(f, "type = \"%s\"", seg->segtype->name);
|
|
|
|
if (!list_empty(&seg->tags)) {
|
|
if (!print_tags(&seg->tags, buffer, sizeof(buffer))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
outf(f, "tags = %s", buffer);
|
|
}
|
|
|
|
if (seg->segtype->ops->text_export &&
|
|
!seg->segtype->ops->text_export(seg, f)) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
_dec_indent(f);
|
|
outf(f, "}");
|
|
|
|
return 1;
|
|
}
|
|
|
|
int out_areas(struct formatter *f, const struct lv_segment *seg,
|
|
const char *type)
|
|
{
|
|
const char *name;
|
|
unsigned int s;
|
|
|
|
f->nl(f);
|
|
|
|
outf(f, "%ss = [", type);
|
|
_inc_indent(f);
|
|
|
|
for (s = 0; s < seg->area_count; s++) {
|
|
switch (seg->area[s].type) {
|
|
case AREA_PV:
|
|
if (!(name = _get_pv_name(f, seg->area[s].u.pv.pv))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
outf(f, "\"%s\", %u%s", name,
|
|
seg->area[s].u.pv.pe,
|
|
(s == seg->area_count - 1) ? "" : ",");
|
|
break;
|
|
case AREA_LV:
|
|
outf(f, "\"%s\", %u%s",
|
|
seg->area[s].u.lv.lv->name,
|
|
seg->area[s].u.lv.le,
|
|
(s == seg->area_count - 1) ? "" : ",");
|
|
}
|
|
}
|
|
|
|
_dec_indent(f);
|
|
outf(f, "]");
|
|
return 1;
|
|
}
|
|
|
|
static int _count_segments(struct logical_volume *lv)
|
|
{
|
|
int r = 0;
|
|
struct list *segh;
|
|
|
|
list_iterate(segh, &lv->segments)
|
|
r++;
|
|
|
|
return r;
|
|
}
|
|
|
|
static int _print_snapshot(struct formatter *f, struct snapshot *snap,
|
|
unsigned int count)
|
|
{
|
|
char buffer[256];
|
|
struct lv_segment seg;
|
|
|
|
f->nl(f);
|
|
|
|
outf(f, "snapshot%u {", count);
|
|
_inc_indent(f);
|
|
|
|
if (!id_write_format(&snap->lvid.id[1], buffer, sizeof(buffer))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
outf(f, "id = \"%s\"", buffer);
|
|
|
|
seg.status = LVM_READ | LVM_WRITE | VISIBLE_LV;
|
|
if (!print_flags(seg.status, LV_FLAGS, buffer, sizeof(buffer))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
outf(f, "status = %s", buffer);
|
|
outf(f, "segment_count = 1");
|
|
|
|
f->nl(f);
|
|
|
|
if (!(seg.segtype = get_segtype_from_string(snap->origin->vg->cmd,
|
|
"snapshot"))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
seg.le = 0;
|
|
seg.len = snap->le_count;
|
|
seg.origin = snap->origin;
|
|
seg.cow = snap->cow;
|
|
seg.chunk_size = snap->chunk_size;
|
|
|
|
/* FIXME Dummy values */
|
|
list_init(&seg.list);
|
|
seg.lv = snap->cow;
|
|
seg.stripe_size = 0;
|
|
seg.area_count = 0;
|
|
seg.area_len = 0;
|
|
seg.extents_copied = 0;
|
|
|
|
/* Can't tag a snapshot independently of its origin */
|
|
list_init(&seg.tags);
|
|
|
|
if (!_print_segment(f, snap->origin->vg, 1, &seg)) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
_dec_indent(f);
|
|
outf(f, "}");
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int _print_snapshots(struct formatter *f, struct volume_group *vg)
|
|
{
|
|
struct list *sh;
|
|
struct snapshot *s;
|
|
unsigned int count = 0;
|
|
|
|
list_iterate(sh, &vg->snapshots) {
|
|
s = list_item(sh, struct snapshot_list)->snapshot;
|
|
|
|
if (!_print_snapshot(f, s, count++)) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int _print_lvs(struct formatter *f, struct volume_group *vg)
|
|
{
|
|
struct list *lvh;
|
|
struct logical_volume *lv;
|
|
struct lv_segment *seg;
|
|
char buffer[4096];
|
|
int seg_count;
|
|
|
|
/*
|
|
* Don't bother with an lv section if there are no lvs.
|
|
*/
|
|
if (list_empty(&vg->lvs))
|
|
return 1;
|
|
|
|
outf(f, "logical_volumes {");
|
|
_inc_indent(f);
|
|
|
|
list_iterate(lvh, &vg->lvs) {
|
|
lv = list_item(lvh, struct lv_list)->lv;
|
|
|
|
f->nl(f);
|
|
outf(f, "%s {", lv->name);
|
|
_inc_indent(f);
|
|
|
|
/* FIXME: Write full lvid */
|
|
if (!id_write_format(&lv->lvid.id[1], buffer, sizeof(buffer))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
outf(f, "id = \"%s\"", buffer);
|
|
|
|
if (!print_flags(lv->status, LV_FLAGS, buffer, sizeof(buffer))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
outf(f, "status = %s", buffer);
|
|
|
|
if (!list_empty(&lv->tags)) {
|
|
if (!print_tags(&lv->tags, buffer, sizeof(buffer))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
outf(f, "tags = %s", buffer);
|
|
}
|
|
|
|
if (lv->alloc != ALLOC_INHERIT)
|
|
outf(f, "allocation_policy = \"%s\"",
|
|
get_alloc_string(lv->alloc));
|
|
|
|
if (lv->read_ahead)
|
|
outf(f, "read_ahead = %u", lv->read_ahead);
|
|
if (lv->major >= 0)
|
|
outf(f, "major = %d", lv->major);
|
|
if (lv->minor >= 0)
|
|
outf(f, "minor = %d", lv->minor);
|
|
outf(f, "segment_count = %u", _count_segments(lv));
|
|
f->nl(f);
|
|
|
|
seg_count = 1;
|
|
list_iterate_items(seg, &lv->segments) {
|
|
if (!_print_segment(f, vg, seg_count++, seg)) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
_dec_indent(f);
|
|
outf(f, "}");
|
|
}
|
|
|
|
if (!_print_snapshots(f, vg)) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
_dec_indent(f);
|
|
outf(f, "}");
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* In the text format we refer to pv's as 'pv1',
|
|
* 'pv2' etc. This function builds a hash table
|
|
* to enable a quick lookup from device -> name.
|
|
*/
|
|
static int _build_pv_names(struct formatter *f, struct volume_group *vg)
|
|
{
|
|
int count = 0;
|
|
struct list *pvh;
|
|
struct physical_volume *pv;
|
|
char buffer[32], *name;
|
|
|
|
if (!(f->mem = pool_create("text pv_names", 512))) {
|
|
stack;
|
|
goto bad;
|
|
}
|
|
|
|
if (!(f->pv_names = hash_create(128))) {
|
|
stack;
|
|
goto bad;
|
|
}
|
|
|
|
list_iterate(pvh, &vg->pvs) {
|
|
pv = list_item(pvh, struct pv_list)->pv;
|
|
|
|
/* FIXME But skip if there's already an LV called pv%d ! */
|
|
if (lvm_snprintf(buffer, sizeof(buffer), "pv%d", count++) < 0) {
|
|
stack;
|
|
goto bad;
|
|
}
|
|
|
|
if (!(name = pool_strdup(f->mem, buffer))) {
|
|
stack;
|
|
goto bad;
|
|
}
|
|
|
|
if (!hash_insert(f->pv_names, dev_name(pv->dev), name)) {
|
|
stack;
|
|
goto bad;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
|
|
bad:
|
|
if (f->mem)
|
|
pool_destroy(f->mem);
|
|
|
|
if (f->pv_names)
|
|
hash_destroy(f->pv_names);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int _text_vg_export(struct formatter *f,
|
|
struct volume_group *vg, const char *desc)
|
|
{
|
|
int r = 0;
|
|
|
|
if (!_build_pv_names(f, vg)) {
|
|
stack;
|
|
goto out;
|
|
}
|
|
#define fail do {stack; goto out;} while(0)
|
|
|
|
if (f->header && !_print_header(f, vg, desc))
|
|
fail;
|
|
|
|
if (!out_text(f, "%s {", vg->name))
|
|
fail;
|
|
|
|
_inc_indent(f);
|
|
|
|
if (!_print_vg(f, vg))
|
|
fail;
|
|
|
|
f->nl(f);
|
|
if (!_print_pvs(f, vg))
|
|
fail;
|
|
|
|
f->nl(f);
|
|
if (!_print_lvs(f, vg))
|
|
fail;
|
|
|
|
_dec_indent(f);
|
|
if (!out_text(f, "}"))
|
|
fail;
|
|
|
|
if (!f->header && !_print_header(f, vg, desc))
|
|
fail;
|
|
|
|
#undef fail
|
|
r = 1;
|
|
|
|
out:
|
|
if (f->mem)
|
|
pool_destroy(f->mem);
|
|
|
|
if (f->pv_names)
|
|
hash_destroy(f->pv_names);
|
|
|
|
return r;
|
|
}
|
|
|
|
int text_vg_export_file(struct volume_group *vg, const char *desc, FILE *fp)
|
|
{
|
|
struct formatter *f;
|
|
int r;
|
|
|
|
_init();
|
|
|
|
if (!(f = dbg_malloc(sizeof(*f)))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
memset(f, 0, sizeof(*f));
|
|
f->data.fp = fp;
|
|
f->indent = 0;
|
|
f->header = 1;
|
|
f->out_with_comment = &_out_with_comment_file;
|
|
f->nl = &_nl_file;
|
|
|
|
r = _text_vg_export(f, vg, desc);
|
|
if (r)
|
|
r = !ferror(f->data.fp);
|
|
dbg_free(f);
|
|
return r;
|
|
}
|
|
|
|
/* Returns amount of buffer used incl. terminating NUL */
|
|
int text_vg_export_raw(struct volume_group *vg, const char *desc, char *buf,
|
|
uint32_t size)
|
|
{
|
|
struct formatter *f;
|
|
int r;
|
|
|
|
_init();
|
|
|
|
if (!(f = dbg_malloc(sizeof(*f)))) {
|
|
stack;
|
|
return 0;
|
|
}
|
|
|
|
memset(f, 0, sizeof(*f));
|
|
f->data.buf.buf = buf;
|
|
f->data.buf.size = size;
|
|
f->indent = 0;
|
|
f->header = 0;
|
|
f->out_with_comment = &_out_with_comment_raw;
|
|
f->nl = &_nl_raw;
|
|
|
|
if (!_text_vg_export(f, vg, desc)) {
|
|
stack;
|
|
r = 0;
|
|
goto out;
|
|
}
|
|
|
|
r = f->data.buf.used + 1;
|
|
|
|
out:
|
|
dbg_free(f);
|
|
return r;
|
|
}
|
|
|
|
#undef outf
|