src/plugin.c

   1 /* plugin.c -- generic plugin routines for vlock,
   2  *             the VT locking program for linux
   3  *
   4  * This program is copyright (C) 2007 Frank Benkstein, and is free
   5  * software which is freely distributable under the terms of the
   6  * GNU General Public License version 2, included as the file COPYING in this
   7  * distribution.  It is NOT public domain software, and any
   8  * redistribution not permitted by the GNU General Public License is
   9  * expressly forbidden without prior written permission from
  10  * the author.
  11  *
  12  */
  13
  14 #include <stdlib.h>
  15 #include <string.h>
  16
  17 #include "list.h"
  18
  19 #include "plugin.h"
  20 #include "util.h"
  21
  22 /* Allocate a new plugin struct. */
  23 struct plugin *__allocate_plugin(const char *name)
  24 {
  25   struct plugin *p = ensure_malloc(sizeof *p);
  26
  27   p->name = strdup(name);
  28   p->save_disabled = false;
  29
  30   for (size_t i = 0; i < nr_dependencies; i++)
  31     p->dependencies[i] = list_new();
  32
  33   return p;
  34 }
  35
  36 /* Destroy the given plugin. (Internal version.) */
  37 void __destroy_plugin(struct plugin *p)
  38 {
  39   for (size_t i = 0; i < nr_dependencies; i++) {
  40     list_delete_for_each(p->dependencies[i], dependency_item)
  41       free(dependency_item->data);
  42
  43     list_free(p->dependencies[i]);
  44   }
  45
  46   free(p->name);
  47   free(p);
  48 }
  49
  50 /* Destroy the given plugin. (External version.) */
  51 void destroy_plugin(struct plugin *p)
  52 {
  53   p->close(p);
  54   __destroy_plugin(p);
  55 }