external/gpl2/lvm2/dist/lib/freeseg/freeseg.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
   5  *
   6  * This file is part of LVM2.
   7  *
   8  * This copyrighted material is made available to anyone wishing to use,
   9  * modify, copy, or redistribute it subject to the terms and conditions
  10  * of the GNU Lesser General Public License v.2.1.
  11  *
  12  * You should have received a copy of the GNU Lesser General Public License
  13  * along with this program; if not, write to the Free Software Foundation,
  14  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  15  */
  16
  17 #include "lib.h"
  18 #include "toolcontext.h"
  19 #include "segtype.h"
  20 #include "display.h"
  21 #include "text_export.h"
  22 #include "text_import.h"
  23 #include "config.h"
  24 #include "str_list.h"
  25 #include "targets.h"
  26 #include "lvm-string.h"
  27 #include "activate.h"
  28 #include "str_list.h"
  29 #include "metadata.h"
  30
  31 static const char *_freeseg_name(const struct lv_segment *seg)
  32 {
  33         return seg->segtype->name;
  34 }
  35
  36 static void _freeseg_destroy(const struct segment_type *segtype)
  37 {
  38         dm_free((void *)segtype);
  39 }
  40
  41 static struct segtype_handler _freeseg_ops = {
  42         .name = _freeseg_name,
  43         .destroy = _freeseg_destroy,
  44 };
  45
  46 struct segment_type *init_free_segtype(struct cmd_context *cmd)
  47 {
  48         struct segment_type *segtype = dm_malloc(sizeof(*segtype));
  49
  50         if (!segtype)
  51                 return_NULL;
  52
  53         segtype->cmd = cmd;
  54         segtype->ops = &_freeseg_ops;
  55         segtype->name = "free";
  56         segtype->private = NULL;
  57         segtype->flags = SEG_VIRTUAL | SEG_CANNOT_BE_ZEROED;
  58
  59         log_very_verbose("Initialised segtype: %s", segtype->name);
  60
  61         return segtype;
  62 }