bt-service/bt-service-util.c

   1 /*
   2  * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *              http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 #include <string.h>
  19 #include <glib.h>
  20 #include <dlog.h>
  21 #include <gio/gio.h>
  22 #include <dlfcn.h>
  23
  24 #include "bluetooth-api.h"
  25 #include "bt-service-common.h"
  26 #include "bt-service-util.h"
  27
  28 static GSList *req_list = NULL;
  29
  30 /* available request id : 0 ~ 244 */
  31 #define BT_REQUEST_ID_RANGE_MAX 245
  32
  33 static int assigned_id;
  34 static gboolean req_id_used[BT_REQUEST_ID_RANGE_MAX];
  35
  36 bt_plugin_info_t *headed_plugin_info = NULL;
  37
  38 void _bt_init_request_id(void)
  39 {
  40         assigned_id = 0;
  41         memset(req_id_used, 0x00, BT_REQUEST_ID_RANGE_MAX);
  42 }
  43
  44 int _bt_assign_request_id(void)
  45 {
  46         int index;
  47
  48         index = assigned_id + 1;
  49
  50         if (index >= BT_REQUEST_ID_RANGE_MAX)
  51                 index = 0;
  52
  53         while (req_id_used[index] == TRUE) {
  54                 if (index == assigned_id) {
  55                         /* No available ID */
  56                         BT_ERR("All request ID is used");
  57                         return -1;
  58                 }
  59
  60                 index++;
  61
  62                 if (index >= BT_REQUEST_ID_RANGE_MAX)
  63                         index = 0;
  64         }
  65
  66         assigned_id = index;
  67         req_id_used[index] = TRUE;
  68
  69         return assigned_id;
  70 }
  71
  72 void _bt_delete_request_id(int request_id)
  73 {
  74         ret_if(request_id >= BT_REQUEST_ID_RANGE_MAX);
  75         ret_if(request_id < 0);
  76
  77         req_id_used[request_id] = FALSE;
  78 }
  79
  80 void _bt_init_request_list(void)
  81 {
  82         _bt_clear_request_list();
  83 }
  84
  85 /* insert request next to head */
  86 int _bt_insert_request_list(int req_id, int service_function,
  87                         char *name, GDBusMethodInvocation *context)
  88 {
  89         request_info_t *info;
  90
  91         info = g_malloc0(sizeof(request_info_t));
  92         info->req_id = req_id;
  93         info->service_function = service_function;
  94         info->context = context;
  95
  96         req_list = g_slist_append(req_list, info);
  97
  98         return BLUETOOTH_ERROR_NONE;
  99 }
 100
 101 request_info_t *_bt_get_request_info(int req_id)
 102 {
 103         GSList *l;
 104         request_info_t *info;
 105
 106         for (l = req_list; l != NULL; l = g_slist_next(l)) {
 107                 info = l->data;
 108                 if (info == NULL)
 109                         continue;
 110
 111                 if (info->req_id == req_id)
 112                         return info;
 113         }
 114
 115         return NULL;
 116 }
 117
 118 /* delete request which has the target req_id */
 119 int _bt_delete_request_list(int req_id)
 120 {
 121         GSList *l;
 122         request_info_t *info;
 123
 124         for (l = req_list; l != NULL; l = g_slist_next(l)) {
 125                 info = l->data;
 126                 if (info == NULL)
 127                         continue;
 128
 129                 if (info->req_id == req_id) {
 130                         req_list = g_slist_remove(req_list, info);
 131                         _bt_delete_request_id(info->req_id);
 132                         g_free(info);
 133                         return BLUETOOTH_ERROR_NONE;
 134                 }
 135         }
 136
 137         return BLUETOOTH_ERROR_NOT_FOUND;
 138 }
 139
 140 void _bt_clear_request_list(void)
 141 {
 142         if (req_list) {
 143                 g_slist_foreach(req_list, (GFunc)g_free, NULL);
 144                 g_slist_free(req_list);
 145                 req_list = NULL;
 146         }
 147 }
 148
 149 void bluetooth_plugin_init()
 150 {
 151         headed_plugin_info = g_malloc0(sizeof(bt_plugin_info_t));
 152         if (!headed_plugin_info) {
 153                 BT_ERR("Can not memory alloc headed plugin");
 154                 return;
 155         }
 156
 157         /* check ARCH 64 or 32*/
 158         if (!access(FILEPATH_ARCH_64, 0)) {
 159                 BT_INFO("plugin loading for ARCH 64");
 160                 headed_plugin_info->handle_headed = dlopen(HEADED_PLUGIN_FILEPATH64, RTLD_NOW);
 161         } else {
 162                 BT_INFO("plugin loading for ARCH 32");
 163                 headed_plugin_info->handle_headed = dlopen(HEADED_PLUGIN_FILEPATH, RTLD_NOW);
 164         }
 165
 166         if (!headed_plugin_info->handle_headed) {
 167                 BT_ERR("Can not load plugin %s", dlerror());
 168                 headed_plugin_info->plugin_headed_enabled = FALSE;
 169                 return;
 170         }
 171
 172         headed_plugin_info->headed_plugin = dlsym(headed_plugin_info->handle_headed, "headed_plugin");
 173         if (!headed_plugin_info->headed_plugin) {
 174                 BT_ERR("Can not load symbol : %s", dlerror());
 175                 dlclose(headed_plugin_info->handle_headed);
 176                 headed_plugin_info->plugin_headed_enabled = FALSE;
 177                 return;
 178         }
 179
 180         headed_plugin_info->plugin_headed_enabled = TRUE;
 181         BT_INFO("Bluetooth Headed Plugin Initialized");
 182 }
 183
 184 void bluetooth_plugin_deinit()
 185 {
 186         BT_INFO("Bluetooth Headed Plugin Deintialized");
 187         if (!headed_plugin_info->plugin_headed_enabled) {
 188                 g_free(headed_plugin_info);
 189                 headed_plugin_info = NULL;
 190                 return;
 191         }
 192
 193         dlclose(headed_plugin_info->handle_headed);
 194         headed_plugin_info->plugin_headed_enabled = FALSE;
 195         g_free(headed_plugin_info);
 196         headed_plugin_info = NULL;
 197 }
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