mirror of
git://sourceware.org/git/lvm2.git
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84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
/*
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* Copyright (C) 2001 Sistina Software (UK) Limited.
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*
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* This file is released under the LGPL.
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*/
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#include "lib.h"
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#include "metadata.h"
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#include "import-export.h"
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#include "pool.h"
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#include "display.h"
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#include "hash.h"
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#include "toolcontext.h"
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#include "cache.h"
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/* FIXME Use tidier inclusion method */
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static struct text_vg_version_ops *(_text_vsn_list[2]);
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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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int fd,
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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,
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time_t *when, char **desc)
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{
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struct volume_group *vg = NULL;
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struct config_tree *cf;
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struct text_vg_version_ops **vsn;
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static int _initialised = 0;
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if (!_initialised) {
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_text_vsn_list[0] = text_vg_vsn1_init();
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_text_vsn_list[1] = NULL;
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_initialised = 1;
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}
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*desc = NULL;
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*when = 0;
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if (!(cf = create_config_tree())) {
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stack;
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goto out;
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}
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if ((fd == -1 && !read_config_file(cf, file)) ||
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(fd != -1 && !read_config_fd(cf, fd, file, offset, size,
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offset2, size2, checksum_fn,
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checksum))) {
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log_error("Couldn't read volume group metadata.");
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goto out;
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}
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/*
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* Find a set of version functions that can read this file
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*/
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for (vsn = &_text_vsn_list[0]; *vsn; vsn++) {
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if (!(*vsn)->check_version(cf))
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continue;
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if (!(vg = (*vsn)->read_vg(fid, cf))) {
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stack;
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goto out;
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}
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(*vsn)->read_desc(fid->fmt->cmd->mem, cf, when, desc);
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break;
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}
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out:
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destroy_config_tree(cf);
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return vg;
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}
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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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{
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return text_vg_import_fd(fid, file, -1, 0, 0, 0, 0, NULL, 0,
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when, desc);
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}
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