+static void __tts_pause_async(void *data)
+{
+ tts_h tts = (tts_h)data;
+ tts_client_s* client = tts_client_get(tts);
+
+ /* check handle */
+ if (NULL == client) {
+ SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] A handle is not valid");
+ return;
+ }
+
+ int ret = -1;
+ int count = 0;
+ while (0 != ret) {
+ ret = tts_dbus_request_pause(client->uid);
+ if (0 != ret) {
+ if (TTS_ERROR_TIMED_OUT != ret) {
+ SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
+ break;
+ } else {
+ SLOG(LOG_WARN, TAG_TTSC, "[WARNING] retry pause : %s", __tts_get_error_code(ret));
+ usleep(10000);
+ count++;
+ if (TTS_RETRY_COUNT == count) {
+ SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to request");
+ break;
+ }
+ }
+ }
+ }
+
+ if (0 != ret) {
+ SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to pause tts : %s", __tts_get_error_code(ret));
+
+ client->reason = ret;
+ client->utt_id = -1;
+
+ ecore_timer_add(0, __tts_notify_error, client->tts);
+ return;
+ }
+
+ client->before_state = client->current_state;
+ client->current_state = TTS_STATE_PAUSED;
+
+ if (NULL != client->state_changed_cb) {
+ tts_client_use_callback(client);
+ client->state_changed_cb(client->tts, client->before_state, client->current_state, client->state_changed_user_data);
+ tts_client_not_use_callback(client);
+ SLOG(LOG_DEBUG, TAG_TTSC, "State changed callback is called");
+ }
+
+ SLOG(LOG_DEBUG, TAG_TTSC, "=====");
+ SLOG(LOG_DEBUG, TAG_TTSC, " ");
+
+ return;
+}
+
+int tts_pause_async(tts_h tts)
+{
+ if (0 != __tts_get_feature_enabled()) {
+ return TTS_ERROR_NOT_SUPPORTED;
+ }
+
+ SLOG(LOG_DEBUG, TAG_TTSC, "===== Pause tts");
+
+ if (NULL == tts) {
+ SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Input handle is null");
+ SLOG(LOG_DEBUG, TAG_TTSC, "=====");
+ SLOG(LOG_DEBUG, TAG_TTSC, " ");
+ return TTS_ERROR_INVALID_PARAMETER;
+ }
+
+ tts_client_s* client = tts_client_get(tts);
+
+ if (NULL == client) {
+ SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] A handle is not valid");
+ SLOG(LOG_DEBUG, TAG_TTSC, "=====");
+ SLOG(LOG_DEBUG, TAG_TTSC, " ");
+ return TTS_ERROR_INVALID_PARAMETER;
+ }
+
+ if (TTS_STATE_PLAYING != client->current_state) {
+ SLOG(LOG_ERROR, TAG_TTSC, "[Error] The Current state is NOT 'playing'. So this request should be not running.");
+ SLOG(LOG_DEBUG, TAG_TTSC, "=====");
+ SLOG(LOG_DEBUG, TAG_TTSC, " ");
+ return TTS_ERROR_INVALID_STATE;
+ }
+
+ if (false == g_screen_reader && TTS_MODE_SCREEN_READER == client->mode) {
+ SLOG(LOG_WARN, TAG_TTSC, "[WARNING] Screen reader option is NOT available. Ignore this request");
+ return TTS_ERROR_INVALID_STATE;
+ }
+
+ ecore_main_loop_thread_safe_call_async(__tts_pause_async, (void*)tts);
+
+ SLOG(LOG_DEBUG, TAG_TTSC, "=====");
+ SLOG(LOG_DEBUG, TAG_TTSC, " ");
+
+ return TTS_ERROR_NONE;
+}