main/global_datastores.c

   1 /*
   2  * Asterisk -- An open source telephony toolkit.
   3  *
   4  * Copyright (C) 1999 - 2007, Digium, Inc.
   5  *
   6  * Mark Michelson <mmichelson@digium.com>
   7  *
   8  * See http://www.asterisk.org for more information about
   9  * the Asterisk project. Please do not directly contact
  10  * any of the maintainers of this project for assistance;
  11  * the project provides a web site, mailing lists and IRC
  12  * channels for your use.
  13  *
  14  * This program is free software, distributed under the terms of
  15  * the GNU General Public License Version 2. See the LICENSE file
  16  * at the top of the source tree.
  17  */
  18
  19 /*! \file
  20  *
  21  * \brief globally-accessible datastore information and callbacks
  22  *
  23  * \author Mark Michelson <mmichelson@digium.com>
  24  */
  25
  26 #include "asterisk.h"
  27
  28 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
  29
  30 #include "asterisk/global_datastores.h"
  31 #include "asterisk/linkedlists.h"
  32
  33 static void dialed_interface_destroy(void *data)
  34 {
  35         struct ast_dialed_interface *di = NULL;
  36         AST_LIST_HEAD(, ast_dialed_interface) *dialed_interface_list = data;
  37
  38         if (!dialed_interface_list)
  39                 return;
  40
  41         AST_LIST_LOCK(dialed_interface_list);
  42         while ((di = AST_LIST_REMOVE_HEAD(dialed_interface_list, list)))
  43                 ast_free(di);
  44         AST_LIST_UNLOCK(dialed_interface_list);
  45
  46         AST_LIST_HEAD_DESTROY(dialed_interface_list);
  47         ast_free(dialed_interface_list);
  48 }
  49
  50 static void *dialed_interface_duplicate(void *data)
  51 {
  52         struct ast_dialed_interface *di = NULL;
  53         AST_LIST_HEAD(, ast_dialed_interface) *old_list;
  54         AST_LIST_HEAD(, ast_dialed_interface) *new_list = NULL;
  55
  56         if(!(old_list = data))
  57                 return NULL;
  58
  59         if(!(new_list = ast_calloc(1, sizeof(*new_list))))
  60                 return NULL;
  61
  62         AST_LIST_HEAD_INIT(new_list);
  63         AST_LIST_LOCK(old_list);
  64         AST_LIST_TRAVERSE(old_list, di, list) {
  65                 struct ast_dialed_interface *di2 = ast_calloc(1, sizeof(*di2) + strlen(di->interface));
  66                 if(!di2) {
  67                         AST_LIST_UNLOCK(old_list);
  68                         dialed_interface_destroy(new_list);
  69                         return NULL;
  70                 }
  71                 strcpy(di2->interface, di->interface);
  72                 AST_LIST_INSERT_TAIL(new_list, di2, list);
  73         }
  74         AST_LIST_UNLOCK(old_list);
  75
  76         return new_list;
  77 }
  78
  79 const struct ast_datastore_info dialed_interface_info = {
  80         .type ="dialed-interface",
  81         .destroy = dialed_interface_destroy,
  82         .duplicate = dialed_interface_duplicate,
  83 };