libblkid-tiny/probe.c

   1 /*
   2  * Low-level libblkid probing API
   3  *
   4  * Copyright (C) 2008-2009 Karel Zak <kzak@redhat.com>
   5  *
   6  * This file may be redistributed under the terms of the
   7  * GNU Lesser General Public License.
   8  */
   9
  10 #include <stdlib.h>
  11
  12 #include "blkidP.h"
  13 #include "libblkid-tiny.h"
  14
  15 static int blkid_probe_reset_buffers(struct blkid_struct_probe *pr);
  16
  17 struct blkid_struct_probe *blkid_new_probe(void)
  18 {
  19         struct blkid_struct_probe *pr;
  20
  21         pr = calloc(1, sizeof(struct blkid_struct_probe));
  22         if (!pr)
  23                 return NULL;
  24
  25         INIT_LIST_HEAD(&pr->buffers);
  26
  27         return pr;
  28 }
  29
  30 void blkid_free_probe(struct blkid_struct_probe *pr)
  31 {
  32         if (!pr)
  33                 return;
  34
  35         blkid_probe_reset_buffers(pr);
  36
  37         free(pr);
  38 }
  39
  40 static int blkid_probe_reset_buffers(struct blkid_struct_probe *pr)
  41 {
  42         if (list_empty(&pr->buffers))
  43                 return 0;
  44
  45         while (!list_empty(&pr->buffers)) {
  46                 struct blkid_bufinfo *bf = list_first_entry(&pr->buffers, struct blkid_bufinfo, bufs);
  47
  48                 list_del(&bf->bufs);
  49
  50                 free(bf);
  51         }
  52
  53         return 0;
  54 }