src/cellular-state.c

   1 /*
   2  * Network Configuration Module
   3  *
   4  * Copyright (c) 2000 - 2012 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  */
  19
  20 #include <glib.h>
  21 #include "log.h"
  22 #include "cellular-state.h"
  23
  24 static cellular_service_state_e cellular_service_state = NETCONFIG_CELLULAR_UNKNOWN;
  25
  26 static GSList *notifier_list = NULL;
  27
  28 static void _cellular_state_changed(cellular_service_state_e state)
  29 {
  30         GSList *list;
  31
  32         for (list = notifier_list; list; list = list->next) {
  33                 cellular_state_notifier *notifier = list->data;
  34
  35                 if (notifier->cellular_state_changed != NULL)
  36                         notifier->cellular_state_changed(state, notifier->user_data);
  37         }
  38 }
  39
  40 void cellular_state_set_service_state(cellular_service_state_e new_state)
  41 {
  42         cellular_service_state_e old_state = cellular_service_state;
  43
  44         if (old_state == new_state)
  45                 return;
  46
  47         cellular_service_state = new_state;
  48         DBG("Cellular state %d ==> %d", old_state, new_state);
  49         _cellular_state_changed(new_state);
  50 }
  51
  52 cellular_service_state_e cellular_state_get_service_state(void)
  53 {
  54         return cellular_service_state;
  55 }
  56
  57 void cellular_state_notifier_register(cellular_state_notifier *notifier)
  58 {
  59         DBG("register notifier");
  60
  61         notifier_list = g_slist_append(notifier_list, notifier);
  62 }
  63
  64 void cellular_state_notifier_unregister(cellular_state_notifier *notifier)
  65 {
  66         DBG("un-register notifier");
  67
  68         notifier_list = g_slist_remove_all(notifier_list, notifier);
  69 }
  70
  71 void cellular_state_notifier_cleanup(void)
  72 {
  73         g_slist_free_full(notifier_list, NULL);
  74 }