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
  42         AST_LIST_LOCK(dialed_interface_list);
  43         while ((di = AST_LIST_REMOVE_HEAD(dialed_interface_list, list)))
  44                 ast_free(di);
  45         AST_LIST_UNLOCK(dialed_interface_list);
  46
  47         AST_LIST_HEAD_DESTROY(dialed_interface_list);
  48         ast_free(dialed_interface_list);
  49 }
  50
  51 static void *dialed_interface_duplicate(void *data)
  52 {
  53         struct ast_dialed_interface *di = NULL;
  54         AST_LIST_HEAD(, ast_dialed_interface) *old_list;
  55         AST_LIST_HEAD(, ast_dialed_interface) *new_list = NULL;
  56
  57         if(!(old_list = data)) {
  58                 return NULL;
  59         }
  60
  61         if(!(new_list = ast_calloc(1, sizeof(*new_list)))) {
  62                 return NULL;
  63         }
  64
  65         AST_LIST_HEAD_INIT(new_list);
  66         AST_LIST_LOCK(old_list);
  67         AST_LIST_TRAVERSE(old_list, di, list) {
  68                 struct ast_dialed_interface *di2 = ast_calloc(1, sizeof(*di2) + strlen(di->interface));
  69                 if(!di2) {
  70                         AST_LIST_UNLOCK(old_list);
  71                         dialed_interface_destroy(new_list);
  72                         return NULL;
  73                 }
  74                 strcpy(di2->interface, di->interface);
  75                 AST_LIST_INSERT_TAIL(new_list, di2, list);
  76         }
  77         AST_LIST_UNLOCK(old_list);
  78
  79         return new_list;
  80 }
  81
  82
  83 static void *dial_features_duplicate(void *data)
  84 {
  85         struct ast_dial_features *df = data, *df_copy;
  86
  87         if (!(df_copy = ast_calloc(1, sizeof(*df)))) {
  88                 return NULL;
  89         }
  90
  91         memcpy(df_copy, df, sizeof(*df));
  92
  93         return df_copy;
  94 }
  95
  96 static void dial_features_destroy(void *data) {
  97         struct ast_dial_features *df = data;
  98         if (df) {
  99                 ast_free(df);
 100         }
 101 }
 102
 103 const struct ast_datastore_info dialed_interface_info = {
 104         .type = "dialed-interface",
 105         .destroy = dialed_interface_destroy,
 106         .duplicate = dialed_interface_duplicate,
 107 };
 108
 109 const struct ast_datastore_info dial_features_info = {
 110         .type = "dial-features",
 111         .destroy = dial_features_destroy,
 112         .duplicate = dial_features_duplicate,
 113 };