client/stt_file_client.c

   1 /*
   2 *  Copyright (c) 2011-2016 Samsung Electronics Co., Ltd All Rights Reserved
   3 *  Licensed under the Apache License, Version 2.0 (the "License");
   4 *  you may not use this file except in compliance with the License.
   5 *  You may obtain a copy of the License at
   6 *  http://www.apache.org/licenses/LICENSE-2.0
   7 *  Unless required by applicable law or agreed to in writing, software
   8 *  distributed under the License is distributed on an "AS IS" BASIS,
   9 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  10 *  See the License for the specific language governing permissions and
  11 *  limitations under the License.
  12 */
  13
  14 #include <dlog.h>
  15 #include <stdio.h>
  16 #include <stdlib.h>
  17 #include <unistd.h>
  18
  19 #include "stt_file_client.h"
  20
  21 static stt_file_client_s* g_client_info = NULL;
  22
  23 int stt_file_client_new()
  24 {
  25         if (NULL != g_client_info) {
  26                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Already allocated client info");
  27                 return STT_FILE_ERROR_INVALID_STATE;
  28         }
  29
  30         g_client_info = (stt_file_client_s*)calloc(1, sizeof(stt_file_client_s));
  31         if (!g_client_info) {
  32                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Fail to allocate memory");
  33                 return STT_FILE_ERROR_OUT_OF_MEMORY;
  34         }
  35
  36         /* initialize client data */
  37         g_client_info->recognition_result_cb = NULL;
  38         g_client_info->recognition_result_user_data = NULL;
  39
  40         g_client_info->result_time_cb = NULL;
  41         g_client_info->result_time_user_data = NULL;
  42
  43         g_client_info->state_changed_cb = NULL;
  44         g_client_info->state_changed_user_data = NULL;
  45
  46         g_client_info->supported_lang_cb = NULL;
  47         g_client_info->supported_lang_user_data = NULL;
  48
  49         g_client_info->current_engine_id = -1;
  50
  51         g_client_info->time_info = NULL;
  52
  53         g_client_info->before_state = STT_FILE_STATE_READY;
  54         g_client_info->current_state = STT_FILE_STATE_READY;
  55
  56         g_client_info->cb_ref_count = 0;
  57
  58         return 0;
  59 }
  60
  61 int stt_file_client_destroy()
  62 {
  63         if (NULL == g_client_info) {
  64                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Client info is NULL");
  65                 return STT_FILE_ERROR_INVALID_STATE;
  66         } else {
  67                 while (0 != g_client_info->cb_ref_count) {
  68                         /* wait for release callback function */
  69                 }
  70
  71                 free(g_client_info);
  72
  73                 g_client_info = NULL;
  74         }
  75
  76         return 0;
  77 }
  78
  79 stt_file_client_s* stt_file_client_get()
  80 {
  81         return g_client_info;
  82 }
  83
  84 int stt_file_client_use_callback(stt_file_client_s* client)
  85 {
  86         client->cb_ref_count++;
  87         return 0;
  88 }
  89
  90 int stt_file_client_not_use_callback(stt_file_client_s* client)
  91 {
  92         client->cb_ref_count--;
  93         return 0;
  94 }
  95
  96 int stt_file_client_get_use_callback(stt_file_client_s* client)
  97 {
  98         return client->cb_ref_count;
  99 }