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/*
* 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 "toolcontext.h"
#include "segtype.h"
#include "display.h"
#include "text_export.h"
#include "text_import.h"
#include "config.h"
#include "str_list.h"
#include "targets.h"
#include "lvm-string.h"
#include "activate.h"
static const char *_name(const struct lv_segment *seg)
{
return seg->segtype->name;
}
static int _merge_segments(struct lv_segment *seg1, struct lv_segment *seg2)
{
seg1->len += seg2->len;
seg1->area_len += seg2->area_len;
return 1;
}
#ifdef DEVMAPPER_SUPPORT
static int _compose_target_line(struct dev_manager *dm, struct dm_pool *mem,
struct config_tree *cft, void **target_state,
struct lv_segment *seg, char *params,
size_t paramsize, const char **target, int *pos,
uint32_t *pvmove_mirror_count)
{
/* error */
*target = "error";
*params = '\0';
return 1;
}
static int _target_present(void)
{
static int checked = 0;
static int present = 0;
if (!checked)
present = target_present("error");
checked = 1;
return present;
}
#endif
static void _destroy(const struct segment_type *segtype)
{
dm_free((void *) segtype);
}
static struct segtype_handler _error_ops = {
name:_name,
merge_segments:_merge_segments,
#ifdef DEVMAPPER_SUPPORT
compose_target_line:_compose_target_line,
target_present:_target_present,
#endif
destroy:_destroy,
};
struct segment_type *init_error_segtype(struct cmd_context *cmd)
{
struct segment_type *segtype = dm_malloc(sizeof(*segtype));
if (!segtype) {
stack;
return NULL;
}
segtype->cmd = cmd;
segtype->ops = &_error_ops;
segtype->name = "error";
segtype->private = NULL;
segtype->flags = SEG_CAN_SPLIT | SEG_VIRTUAL;
log_very_verbose("Initialised segtype: %s", segtype->name);
return segtype;
}
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