Update hello protocol
[platform/core/uifw/tts.git] / client / tts.c
index 1b07804..b7176fc 100644 (file)
@@ -20,6 +20,8 @@
 #include <sys/wait.h>
 #include <system_info.h>
 #include <vconf.h>
+#include <package-manager.h>
+#include <pthread.h>
 
 #include "tts.h"
 #include "tts_client.h"
@@ -27,6 +29,7 @@
 #include "tts_dbus.h"
 #include "tts_main.h"
 
+#include "tts_internal.h"
 
 static bool g_screen_reader;
 
@@ -36,9 +39,29 @@ static bool g_err_callback_status = false;
 
 static int g_max_text_size = -1;
 
+static Ecore_Timer* g_check_state_timer = NULL;
+
+static Ecore_Timer* g_hello_timer;
+
+/* for repetition */
+static char* g_language = NULL;
+
+static int g_voice_type = -1;
+
+static int g_speed = -1;
+
+/* for checking engine update */
+static pkgmgr_client* g_pkgmgr = NULL;
+static char* g_engine_name = NULL;
+static int g_engine_update_status = 0;
+static pthread_mutex_t g_pkgmgr_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+
 /* Function definition */
 static Eina_Bool __tts_notify_state_changed(void *data);
 static Eina_Bool __tts_notify_error(void *data);
+int __tts_cb_error(int uid, tts_error_e reason, int utt_id, char* err_msg);
+
 
 const char* tts_tag()
 {
@@ -108,6 +131,7 @@ static int __tts_convert_config_error_code(tts_config_error_e code)
        return code;
 }
 
+//LCOV_EXCL_START
 void __tts_config_voice_changed_cb(const char* before_lang, int before_voice_type, const char* language, int voice_type, bool auto_voice, void* user_data)
 {
        SLOG(LOG_DEBUG, TAG_TTSC, "Voice changed : Before lang(%s) type(%d) , Current lang(%s), type(%d)",
@@ -131,6 +155,14 @@ void __tts_config_voice_changed_cb(const char* before_lang, int before_voice_typ
                                        language, voice_type, data->default_voice_changed_user_data);
                        }
 
+                       /* Check whether language is changed or not. If it is changed, make 'text_repeat' NULL */
+                       if (0 != strncmp(before_lang, language, strlen(before_lang))) {
+                               if (NULL != data->text_repeat) {
+                                       free(data->text_repeat);
+                                       data->text_repeat = NULL;
+                               }
+                       }
+
                        /* Next item */
                        iter = g_list_next(iter);
                }
@@ -210,6 +242,85 @@ void _tts_config_engine_changed_cb(const char* engine_id, const char* setting, c
        }
        return;
 }
+//LCOV_EXCL_STOP
+
+void __tts_unset_all_callbacks(tts_h tts)
+{
+       SLOG(LOG_INFO, TAG_TTSC, "@@@ unset all callbacks");
+
+       tts_unset_state_changed_cb(tts);
+       tts_unset_utterance_started_cb(tts);
+       tts_unset_utterance_completed_cb(tts);
+       tts_unset_error_cb(tts);
+       tts_unset_default_voice_changed_cb(tts);
+       tts_unset_engine_changed_cb(tts);
+
+       SLOG(LOG_DEBUG, TAG_TTSC, "@@@");
+}
+
+static int __pkgmgr_status_cb(uid_t target_uid, int req_id, const char *type, const char *pkgname, const char *key, const char *val, const void *pmsg, void *data)
+{
+       SLOG(LOG_INFO, TAG_TTSC, "[INFO] pkgmgr status cb is invoked. pkgname(%s), type(%s), key(%s), val(%s)", pkgname, type, key, val);
+
+       if (0 != strncmp(g_engine_name, pkgname, strlen(g_engine_name))) {
+               SLOG(LOG_DEBUG, TAG_TTSC, "[WARN] this is not tts engine");
+               return 0;
+       } else {
+               if (key && 0 == strncmp(key, "start", strlen(key))) {
+                       if (val && (0 == strncmp(val, "update", strlen(val) || 0 == strncmp(val, "uninstall", strlen(val))))) {
+                               SLOG(LOG_INFO, TAG_TTSC, "[INFO] start to install.");
+                               g_engine_update_status = 1;
+                       }
+               } else if (key && 0 == strncmp(key, "end", strlen(key))) {
+                       SLOG(LOG_INFO, TAG_TTSC, "[INFO] finish to install");
+                       g_engine_update_status = 0;
+               }
+       }
+
+       return 0;
+}
+
+static void __create_pkgmgr_thread(void* data, Ecore_Thread* thread)
+{
+       SLOG(LOG_ERROR, TAG_TTSC, "[DEBUG] create pkgmgr thread");
+
+       pthread_mutex_lock(&g_pkgmgr_mutex);
+
+       while (!g_pkgmgr) {
+               g_pkgmgr = pkgmgr_client_new(PC_LISTENING);
+               if (NULL == g_pkgmgr) {
+                       SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to create pkgmgr handle");
+               } else {
+                       if (pkgmgr_client_listen_status(g_pkgmgr, __pkgmgr_status_cb, NULL) < 0) {
+                               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to listen pkgmgr status. remove and recreate client");
+                               pkgmgr_client_free(g_pkgmgr);
+                               g_pkgmgr = NULL;
+                               continue;
+                       } else {
+                               SLOG(LOG_ERROR, TAG_TTSC, "[DEBUG] Succeed to register pkgmgr cb");
+                       }
+               }
+               usleep(10000);
+       }
+
+       pthread_mutex_unlock(&g_pkgmgr_mutex);
+
+       return ;
+}
+
+static void __finish_pkgmgr_thread(void* data, Ecore_Thread* thread)
+{
+       SLOG(LOG_ERROR, TAG_TTSC, "[DEBUG] Finish pkgmgr thread");
+}
+
+static void __pkgmgr_thread(void* data)
+{
+       SLOG(LOG_ERROR, TAG_TTSC, "[DEBUG] call pkgmgr_thread");
+
+       ecore_thread_run(__create_pkgmgr_thread, __finish_pkgmgr_thread, NULL, NULL);
+
+       return ;
+}
 
 int tts_create(tts_h* tts)
 {
@@ -251,13 +362,24 @@ int tts_create(tts_h* tts)
                return __tts_convert_config_error_code(ret);
        }
 
-       ret = tts_config_mgr_set_callback(client->uid, _tts_config_engine_changed_cb, __tts_config_voice_changed_cb, NULL, NULL, client->tts);
+       ret = tts_config_mgr_set_callback(client->uid, _tts_config_engine_changed_cb, __tts_config_voice_changed_cb, NULL, NULL, NULL, client->tts);
        if (0 != ret) {
                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to set config changed : %d", ret);
                tts_client_destroy(*tts);
                return __tts_convert_config_error_code(ret);
        }
 
+       ecore_main_loop_thread_safe_call_async(__pkgmgr_thread, NULL);
+
+       SLOG(LOG_INFO, TAG_TTSC, "[INFO] call ecore thread for creating pkgmgr thread");
+
+       g_engine_name = vconf_get_str(TTS_ENGINE_DB_DEFAULT);
+       if (NULL == g_engine_name) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to get engine name");
+       } else {
+               SLOG(LOG_ERROR, TAG_TTSC, "[INFO] Engine name(%s)", g_engine_name);
+       }
+
        SLOG(LOG_DEBUG, TAG_TTSC, "@@@");
        SLOG(LOG_DEBUG, TAG_TTSC, " ");
 
@@ -291,6 +413,14 @@ int tts_destroy(tts_h tts)
                return TTS_ERROR_OPERATION_FAILED;
        }
 
+       pthread_mutex_lock(&g_pkgmgr_mutex);
+       if (g_pkgmgr) {
+               pkgmgr_client_remove_listen_status(g_pkgmgr);
+               pkgmgr_client_free(g_pkgmgr);
+               g_pkgmgr = NULL;
+       }
+       pthread_mutex_unlock(&g_pkgmgr_mutex);
+
        tts_config_mgr_finalize(client->uid);
 
        int ret = -1;
@@ -313,6 +443,7 @@ int tts_destroy(tts_h tts)
                        do {
                                ret = tts_dbus_request_finalize(client->uid);
                                if (0 != ret) {
+                                       //LCOV_EXCL_START
                                        if (TTS_ERROR_TIMED_OUT != ret) {
                                                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
                                                break;
@@ -325,6 +456,7 @@ int tts_destroy(tts_h tts)
                                                        break;
                                                }
                                        }
+                                       //LCOV_EXCL_STOP
                                }
                        } while (0 != ret);
                } else {
@@ -340,6 +472,9 @@ int tts_destroy(tts_h tts)
                        ecore_timer_del(client->conn_timer);
                        client->conn_timer = NULL;
                }
+               /* Unset registered callbacks */
+               __tts_unset_all_callbacks(tts);
+
                /* Free resources */
                tts_client_destroy(tts);
                break;
@@ -354,6 +489,17 @@ int tts_destroy(tts_h tts)
                }
        }
 
+       if (NULL != g_language) {
+               free(g_language);
+               g_language = NULL;
+       }
+
+       /* Delete state timer before destroying handle */
+       if (NULL != g_check_state_timer) {
+               ecore_timer_del(g_check_state_timer);
+               g_check_state_timer = NULL;
+       }
+
        tts = NULL;
 
        SLOG(LOG_DEBUG, TAG_TTSC, "@@@");
@@ -361,10 +507,12 @@ int tts_destroy(tts_h tts)
        return TTS_ERROR_NONE;
 }
 
+//LCOV_EXCL_START
 void __tts_screen_reader_changed_cb(bool value)
 {
        g_screen_reader = value;
 }
+//LCOV_EXCL_STOP
 
 int tts_set_mode(tts_h tts, tts_mode_e mode)
 {
@@ -391,7 +539,7 @@ int tts_set_mode(tts_h tts, tts_mode_e mode)
                return TTS_ERROR_INVALID_STATE;
        }
 
-       if (TTS_MODE_DEFAULT <= mode && mode <= TTS_MODE_SCREEN_READER) {
+       if (TTS_MODE_DEFAULT <= mode && mode <= TTS_MODE_INTERRUPT) {
                client->mode = mode;
        } else {
                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] mode is not valid : %d", mode);
@@ -492,6 +640,7 @@ int tts_set_credential(tts_h tts, const char* credential)
        return TTS_ERROR_NONE;
 }
 
+//LCOV_EXCL_START
 int tts_set_server_tts(tts_h tts, const char* credential)
 {
        if (0 != __tts_get_feature_enabled()) {
@@ -528,6 +677,10 @@ int tts_set_server_tts(tts_h tts, const char* credential)
                client->credential = strdup(credential);
                if (NULL == client->credential) {
                        SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to allocate memory");
+                       if (NULL != key) {
+                               free(key);
+                               key = NULL;
+                       }
                        return TTS_ERROR_OUT_OF_MEMORY;
                }
        } else {
@@ -542,10 +695,14 @@ int tts_set_server_tts(tts_h tts, const char* credential)
        int pid = getpid();
        char* appid = NULL;
        int ret = app_manager_get_app_id(pid, &appid);
-       if (0 != ret) {
+       if (0 != ret || NULL == appid) {
                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to get appid, ret(%d), pid(%d), appid(%s)", ret, pid, appid);
                free(key);
                key = NULL;
+               if (NULL != appid) {
+                       free(appid);
+                       appid = NULL;
+               }
                return TTS_ERROR_OPERATION_FAILED;
        }
 
@@ -554,6 +711,8 @@ int tts_set_server_tts(tts_h tts, const char* credential)
                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to set private data, ret(%d), pid(%d), appid(%s)", ret, pid, appid);
                free(key);
                key = NULL;
+               free(appid);
+               appid = NULL;
                return ret;
        }
 
@@ -566,6 +725,7 @@ int tts_set_server_tts(tts_h tts, const char* credential)
 
        return TTS_ERROR_NONE;
 }
+// LCOV_EXCL_STOP
 
 static Eina_Bool __tts_connect_daemon(void *data)
 {
@@ -578,8 +738,16 @@ static Eina_Bool __tts_connect_daemon(void *data)
                return EINA_FALSE;
        }
 
+       /* check whether engine is updating or not */
+       if (g_engine_update_status) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[DEBUG] cannot prepare due to engine update");
+               __tts_cb_error(-1, TTS_ERROR_SERVICE_RESET, -1, "Daemon Reset");
+
+               return EINA_FALSE;
+       }
+
        /* Send hello */
-       if (0 != tts_dbus_request_hello(client->uid)) {
+       if (0 != tts_dbus_request_hello_sync(client->uid)) {
                return EINA_TRUE;
        }
 
@@ -598,7 +766,10 @@ static Eina_Bool __tts_connect_daemon(void *data)
                client->utt_id = -1;
 
                ecore_timer_add(0, __tts_notify_error, (void*)client->tts);
-               client->conn_timer = NULL;
+               if (client->conn_timer) {
+                       ecore_timer_del(client->conn_timer);
+                       client->conn_timer = NULL;
+               }
                return EINA_FALSE;
 
        } else if (TTS_ERROR_PERMISSION_DENIED == ret) {
@@ -608,7 +779,10 @@ static Eina_Bool __tts_connect_daemon(void *data)
                client->utt_id = -1;
 
                ecore_timer_add(0, __tts_notify_error, (void*)client->tts);
-               client->conn_timer = NULL;
+               if (client->conn_timer) {
+                       ecore_timer_del(client->conn_timer);
+                       client->conn_timer = NULL;
+               }
                return EINA_FALSE;
 
        } else if (TTS_ERROR_NONE != ret) {
@@ -621,7 +795,10 @@ static Eina_Bool __tts_connect_daemon(void *data)
                SLOG(LOG_ERROR, TAG_TTSC, "Supported options : credential(%s)", credential_needed ? "need" : "no need");
        }
 
-       client->conn_timer = NULL;
+       if (client->conn_timer) {
+               ecore_timer_del(client->conn_timer);
+               client->conn_timer = NULL;
+       }
 
        client = tts_client_get(tts);
        /* check handle */
@@ -646,6 +823,97 @@ static Eina_Bool __tts_connect_daemon(void *data)
        return EINA_FALSE;
 }
 
+int __tts_cb_hello(int uid, int ret, int credential_needed)
+{
+       tts_client_s* client = tts_client_get_by_uid(uid);
+       if (NULL == client) {
+               SLOG(LOG_ERROR, TAG_TTSC, "Fail to get TTS client or ignore this uid(%d)", uid);
+               return TTS_ERROR_OPERATION_FAILED;
+       }
+
+       if (g_hello_timer) {
+               ecore_timer_del(g_hello_timer);
+               g_hello_timer = NULL;
+       }
+
+       if (TTS_STATE_READY == client->current_state) {
+               SLOG(LOG_INFO, TAG_TTSC, "[INFO] tts client is already READY");
+               return TTS_ERROR_NONE;
+       }
+
+       if (TTS_ERROR_ENGINE_NOT_FOUND == ret) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to initialize : %s", __tts_get_error_code(ret));
+
+               client->reason = TTS_ERROR_ENGINE_NOT_FOUND;
+               client->utt_id = -1;
+
+               ecore_timer_add(0, __tts_notify_error, (void*)client->tts);
+               return TTS_ERROR_OPERATION_FAILED;
+
+       } else if (TTS_ERROR_PERMISSION_DENIED == ret) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to initialize : %s", __tts_get_error_code(ret));
+
+               client->reason = TTS_ERROR_PERMISSION_DENIED;
+               client->utt_id = -1;
+
+               ecore_timer_add(0, __tts_notify_error, (void*)client->tts);
+               return TTS_ERROR_PERMISSION_DENIED;
+
+       } else if (TTS_ERROR_NONE != ret) {
+               SLOG(LOG_WARN, TAG_TTSC, "[WARNING] Fail to connection. Retry to connect : %s", __tts_get_error_code(ret));
+               return TTS_ERROR_OPERATION_FAILED;
+
+       } else {
+               /* success to connect tts-daemon */
+               client->credential_needed = credential_needed;
+               SLOG(LOG_ERROR, TAG_TTSC, "Supported options : credential(%s)", credential_needed ? "need" : "no need");
+       }
+
+       client->before_state = client->current_state;
+       client->current_state = TTS_STATE_READY;
+
+       ecore_timer_add(0.0, __tts_notify_state_changed, client->tts);
+
+       SLOG(LOG_DEBUG, TAG_TTSC, "@@@");
+       return TTS_ERROR_NONE;
+}
+
+static Eina_Bool __send_hello(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");
+               g_hello_timer = NULL;
+               return EINA_FALSE;
+       }
+
+       /* check state */
+       if (client->current_state == TTS_STATE_READY) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[INFO] TTS client has been already connected to tts service"); //LCOV_EXCL_LINE
+               SLOG(LOG_DEBUG, TAG_TTSC, "@@@");
+               g_hello_timer = NULL;
+               return EINA_FALSE;
+       }
+
+       /* Send hello */
+       int ret = tts_dbus_request_hello(client->uid);
+       if (0 != ret)  {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to request hello !!"); //LCOV_EXCL_LINE
+       } else {
+               SLOG(LOG_ERROR, TAG_TTSC, "@@@ Send Hello");
+       }
+
+       if (!g_hello_timer) {
+               SLOG(LOG_ERROR, TAG_TTSC, "@@@ Call checking Hello timer callback");
+               g_hello_timer = ecore_timer_add(0.5, __send_hello, tts);
+               return EINA_FALSE;
+       }
+       return EINA_TRUE;
+}
+
 int tts_prepare(tts_h tts)
 {
        if (0 != __tts_get_feature_enabled()) {
@@ -670,13 +938,59 @@ int tts_prepare(tts_h tts)
                return TTS_ERROR_INVALID_STATE;
        }
 
-       client->conn_timer = ecore_timer_add(0, __tts_connect_daemon, (void*)tts);
+       if (NULL == g_hello_timer) {
+               SLOG(LOG_ERROR, TAG_TTSC, "@@@ Call checking Hello timer callback");
+               ecore_thread_main_loop_begin();
+               ecore_timer_add(0.0, __send_hello, (void*)tts);
+               ecore_thread_main_loop_end();
+       }
 
        SLOG(LOG_DEBUG, TAG_TTSC, "@@@");
 
        return TTS_ERROR_NONE;
 }
 
+//LCOV_EXCL_START
+int tts_prepare_sync(tts_h tts)
+{
+       if (0 != __tts_get_feature_enabled()) {
+               return TTS_ERROR_NOT_SUPPORTED;
+       }
+
+       SLOG(LOG_INFO, TAG_TTSC, "@@@ Prepare TTS");
+
+       tts_client_s* client = tts_client_get(tts);
+
+       /* check handle */
+       if (NULL == client) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] A handle is not available");
+               SLOG(LOG_DEBUG, TAG_TTSC, "@@@");
+               return TTS_ERROR_INVALID_PARAMETER;
+       }
+
+       /* check state */
+       if (client->current_state != TTS_STATE_CREATED) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Invalid State: Current state is not 'CREATED'");
+               SLOG(LOG_DEBUG, TAG_TTSC, "@@@");
+               return TTS_ERROR_INVALID_STATE;
+       }
+
+       int cnt = 0;
+       while (EINA_TRUE == __tts_connect_daemon((void*)tts) && TTS_CONNECTION_RETRY_COUNT > cnt) {
+               cnt++;
+       }
+
+       SLOG(LOG_DEBUG, TAG_TTSC, "@@@");
+
+       if (TTS_CONNECTION_RETRY_COUNT == cnt) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to connect daemon");
+               return TTS_ERROR_OPERATION_FAILED;
+       }
+
+       return TTS_ERROR_NONE;
+}
+//LCOV_EXCL_STOP
+
 int tts_unprepare(tts_h tts)
 {
        if (0 != __tts_get_feature_enabled()) {
@@ -711,11 +1025,19 @@ int tts_unprepare(tts_h tts)
                g_screen_reader = (bool)screen_reader;
        }
 
+       bool is_prepared = false;
        if (!(false == g_screen_reader && TTS_MODE_SCREEN_READER == client->mode)) {
                do {
                        ret = tts_dbus_request_finalize(client->uid);
                        if (0 != ret) {
-                               if (TTS_ERROR_TIMED_OUT != ret) {
+                               //LCOV_EXCL_START
+                               if (TTS_ERROR_INVALID_PARAMETER == ret && false == is_prepared) {
+                                       client->current_state = TTS_STATE_CREATED;
+                                       if (0 == tts_prepare_sync(tts)) {
+                                               is_prepared = true;
+                                               SLOG(LOG_INFO, TAG_TTSC, "[INFO] Success tts_prepare_sync");
+                                       }
+                               } else if (TTS_ERROR_TIMED_OUT != ret) {
                                        SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
                                        break;
                                } else {
@@ -727,6 +1049,7 @@ int tts_unprepare(tts_h tts)
                                                break;
                                        }
                                }
+                               //LCOV_EXCL_STOP
                        }
                } while (0 != ret);
        } else {
@@ -882,7 +1205,6 @@ int tts_get_max_text_size(tts_h tts, unsigned int* size)
                return TTS_ERROR_INVALID_STATE;
        }
 
-//     *size = TTS_MAX_TEXT_SIZE;
        if (0 != tts_config_mgr_get_max_text_size(size)) {
                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to get max text size");
                return TTS_ERROR_INVALID_PARAMETER;
@@ -1079,6 +1401,28 @@ int tts_add_text(tts_h tts, const char* text, const char* language, int voice_ty
        }
        SLOG(LOG_DEBUG, TAG_TTSC, "Text is valid - text is '%s'", text);
 
+       /* save texts for repetition */
+       if (NULL != client->text_repeat) {
+               free(client->text_repeat);
+               client->text_repeat = NULL;
+       }
+
+       client->text_repeat = strdup(text);
+
+       if (NULL != g_language) {
+               free(g_language);
+               g_language = NULL;
+       }
+       if (NULL == language)
+               g_language = NULL;
+       else
+               g_language = strdup(language);
+
+       g_voice_type = voice_type;
+       g_speed = speed;
+
+       SLOG(LOG_DEBUG, TAG_TTSC, "[DEBUG] repeat: text(%s), language(%s), voice type(%d), speed(%d)", client->text_repeat, (g_language) ? g_language : "NULL", g_voice_type, g_speed);
+
        /* change default language value */
        char* temp = NULL;
 
@@ -1095,10 +1439,18 @@ int tts_add_text(tts_h tts, const char* text, const char* language, int voice_ty
        /* do request */
        int ret = -1;
        int count = 0;
+       bool is_prepared = false;
        while (0 != ret) {
                ret = tts_dbus_request_add_text(client->uid, text, temp, voice_type, speed, client->current_utt_id, client->credential);
                if (0 != ret) {
-                       if (TTS_ERROR_TIMED_OUT != ret) {
+                       //LCOV_EXCL_START
+                       if (TTS_ERROR_INVALID_PARAMETER == ret && false == is_prepared) {
+                               client->current_state = TTS_STATE_CREATED;
+                               if (0 == tts_prepare_sync(tts)) {
+                                       is_prepared = true;
+                                       SLOG(LOG_INFO, TAG_TTSC, "[INFO] Success tts_prepare_sync");
+                               }
+                       } else if (TTS_ERROR_TIMED_OUT != ret) {
                                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
                                break;
                        } else {
@@ -1110,6 +1462,7 @@ int tts_add_text(tts_h tts, const char* text, const char* language, int voice_ty
                                        break;
                                }
                        }
+                       //LCOV_EXCL_STOP
                } else {
                        *utt_id = client->current_utt_id;
                }
@@ -1125,6 +1478,7 @@ int tts_add_text(tts_h tts, const char* text, const char* language, int voice_ty
        return ret;
 }
 
+//LCOV_EXCL_START
 static void __tts_play_async(void *data)
 {
        tts_h tts = (tts_h)data;
@@ -1138,10 +1492,17 @@ static void __tts_play_async(void *data)
 
        int ret = -1;
        int count = 0;
+       bool is_prepared = false;
        while (0 != ret) {
                ret = tts_dbus_request_play(client->uid, client->credential);
                if (0 != ret) {
-                       if (TTS_ERROR_TIMED_OUT != ret) {
+                       if (TTS_ERROR_INVALID_PARAMETER == ret && false == is_prepared) {
+                               client->current_state = TTS_STATE_CREATED;
+                               if (0 == tts_prepare_sync(tts)) {
+                                       is_prepared = true;
+                                       SLOG(LOG_INFO, TAG_TTSC, "[INFO] Success tts_prepare_sync");
+                               }
+                       } else if (TTS_ERROR_TIMED_OUT != ret) {
                                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
                                break;
                        } else {
@@ -1224,7 +1585,7 @@ int tts_play_async(tts_h tts)
 
        return TTS_ERROR_NONE;
 }
-
+//LCOV_EXCL_STOP
 int tts_play(tts_h tts)
 {
        if (0 != __tts_get_feature_enabled()) {
@@ -1265,10 +1626,18 @@ int tts_play(tts_h tts)
 
        int ret = -1;
        int count = 0;
+       bool is_prepared = false;
        while (0 != ret) {
                ret = tts_dbus_request_play(client->uid, client->credential);
                if (0 != ret) {
-                       if (TTS_ERROR_TIMED_OUT != ret) {
+                       //LCOV_EXCL_START
+                       if (TTS_ERROR_INVALID_PARAMETER == ret && false == is_prepared) {
+                               client->current_state = TTS_STATE_CREATED;
+                               if (0 == tts_prepare_sync(tts)) {
+                                       is_prepared = true;
+                                       SLOG(LOG_INFO, TAG_TTSC, "[INFO] Success tts_prepare_sync");
+                               }
+                       } else if (TTS_ERROR_TIMED_OUT != ret) {
                                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
                                return ret;
                        } else {
@@ -1280,6 +1649,7 @@ int tts_play(tts_h tts)
                                        return ret;
                                }
                        }
+                       //LCOV_EXCL_STOP
                }
        }
 
@@ -1297,7 +1667,7 @@ int tts_play(tts_h tts)
 
        return TTS_ERROR_NONE;
 }
-
+//LCOV_EXCL_START
 static void __tts_stop_async(void *data)
 {
        tts_h tts = (tts_h)data;
@@ -1311,10 +1681,17 @@ static void __tts_stop_async(void *data)
 
        int ret = -1;
        int count = 0;
+       bool is_prepared = false;
        while (0 != ret) {
                ret = tts_dbus_request_stop(client->uid);
                if (0 != ret) {
-                       if (TTS_ERROR_TIMED_OUT != ret) {
+                       if (TTS_ERROR_INVALID_PARAMETER == ret && false == is_prepared) {
+                               client->current_state = TTS_STATE_CREATED;
+                               if (0 == tts_prepare_sync(tts)) {
+                                       is_prepared = true;
+                                       SLOG(LOG_INFO, TAG_TTSC, "[INFO] Success tts_prepare_sync");
+                               }
+                       } else if (TTS_ERROR_TIMED_OUT != ret) {
                                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
                                break;
                        } else {
@@ -1392,7 +1769,7 @@ int tts_stop_aync(tts_h tts)
 
        return TTS_ERROR_NONE;
 }
-
+//LCOV_EXCL_STOP
 int tts_stop(tts_h tts)
 {
        if (0 != __tts_get_feature_enabled()) {
@@ -1427,10 +1804,18 @@ int tts_stop(tts_h tts)
 
        int ret = -1;
        int count = 0;
+       bool is_prepared = false;
        while (0 != ret) {
                ret = tts_dbus_request_stop(client->uid);
                if (0 != ret) {
-                       if (TTS_ERROR_TIMED_OUT != ret) {
+                       //LCOV_EXCL_START
+                       if (TTS_ERROR_INVALID_PARAMETER == ret && false == is_prepared) {
+                               client->current_state = TTS_STATE_CREATED;
+                               if (0 == tts_prepare_sync(tts)) {
+                                       is_prepared = true;
+                                       SLOG(LOG_INFO, TAG_TTSC, "[INFO] Success tts_prepare_sync");
+                               }
+                       } else if (TTS_ERROR_TIMED_OUT != ret) {
                                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
                                return ret;
                        } else {
@@ -1442,6 +1827,7 @@ int tts_stop(tts_h tts)
                                        return ret;
                                }
                        }
+                       //LCOV_EXCL_STOP
                }
        }
 
@@ -1459,7 +1845,7 @@ int tts_stop(tts_h tts)
 
        return TTS_ERROR_NONE;
 }
-
+//LCOV_EXCL_START
 static void __tts_pause_async(void *data)
 {
        tts_h tts = (tts_h)data;
@@ -1473,10 +1859,17 @@ static void __tts_pause_async(void *data)
 
        int ret = -1;
        int count = 0;
+       bool is_prepared = false;
        while (0 != ret) {
                ret = tts_dbus_request_pause(client->uid);
                if (0 != ret) {
-                       if (TTS_ERROR_TIMED_OUT != ret) {
+                       if (TTS_ERROR_INVALID_PARAMETER == ret && false == is_prepared) {
+                               client->current_state = TTS_STATE_CREATED;
+                               if (0 == tts_prepare_sync(tts)) {
+                                       is_prepared = true;
+                                       SLOG(LOG_INFO, TAG_TTSC, "[INFO] Success tts_prepare_sync");
+                               }
+                       } else if (TTS_ERROR_TIMED_OUT != ret) {
                                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
                                break;
                        } else {
@@ -1555,7 +1948,7 @@ int tts_pause_async(tts_h tts)
 
        return TTS_ERROR_NONE;
 }
-
+//LCOV_EXCL_STOP
 int tts_pause(tts_h tts)
 {
        if (0 != __tts_get_feature_enabled()) {
@@ -1591,10 +1984,18 @@ int tts_pause(tts_h tts)
 
        int ret = -1;
        int count = 0;
+       bool is_prepared = false;
        while (0 != ret) {
                ret = tts_dbus_request_pause(client->uid);
                if (0 != ret) {
-                       if (TTS_ERROR_TIMED_OUT != ret) {
+                       //LCOV_EXCL_START
+                       if (TTS_ERROR_INVALID_PARAMETER == ret && false == is_prepared) {
+                               client->current_state = TTS_STATE_CREATED;
+                               if (0 == tts_prepare_sync(tts)) {
+                                       is_prepared = true;
+                                       SLOG(LOG_INFO, TAG_TTSC, "[INFO] Success tts_prepare_sync");
+                               }
+                       } else if (TTS_ERROR_TIMED_OUT != ret) {
                                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
                                return ret;
                        } else {
@@ -1606,6 +2007,7 @@ int tts_pause(tts_h tts)
                                        return ret;
                                }
                        }
+                       //LCOV_EXCL_STOP
                }
        }
 
@@ -1633,7 +2035,7 @@ int tts_set_private_data(tts_h tts, const char* key, const char* data)
        SLOG(LOG_INFO, TAG_TTSC, "@@@ Set private data, key(%s), data(%s)", key, data);
 
        if (NULL == tts) {
-               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Input handle isnull");
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Input handle is null");
                return TTS_ERROR_INVALID_PARAMETER;
        }
 
@@ -1661,10 +2063,18 @@ int tts_set_private_data(tts_h tts, const char* key, const char* data)
 
        int ret = -1;
        int count = 0;
+       bool is_prepared = false;
        while (0 != ret) {
                ret = tts_dbus_request_set_private_data(client->uid, key, data);
                if (0 != ret) {
-                       if (TTS_ERROR_TIMED_OUT != ret) {
+                       //LCOV_EXCL_START
+                       if (TTS_ERROR_INVALID_PARAMETER == ret && false == is_prepared) {
+                               client->current_state = TTS_STATE_CREATED;
+                               if (0 == tts_prepare_sync(tts)) {
+                                       is_prepared = true;
+                                       SLOG(LOG_INFO, TAG_TTSC, "[INFO] Success tts_prepare_sync");
+                               }
+                       } else if (TTS_ERROR_TIMED_OUT != ret) {
                                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
                                return ret;
                        } else {
@@ -1676,6 +2086,7 @@ int tts_set_private_data(tts_h tts, const char* key, const char* data)
                                        return ret;
                                }
                        }
+                       //LCOV_EXCL_STOP
                }
        }
 
@@ -1716,10 +2127,18 @@ int tts_get_private_data(tts_h tts, const char* key, char** data)
 
        int ret = -1;
        int count = 0;
+       bool is_prepared = false;
        while (0 != ret) {
                ret = tts_dbus_request_get_private_data(client->uid, key, data);
                if (0 != ret) {
-                       if (TTS_ERROR_TIMED_OUT != ret) {
+                       //LCOV_EXCL_START
+                       if (TTS_ERROR_INVALID_PARAMETER == ret && false == is_prepared) {
+                               client->current_state = TTS_STATE_CREATED;
+                               if (0 == tts_prepare_sync(tts)) {
+                                       is_prepared = true;
+                                       SLOG(LOG_INFO, TAG_TTSC, "[INFO] Success tts_prepare_sync");
+                               }
+                       } else if (TTS_ERROR_TIMED_OUT != ret) {
                                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
                                return ret;
                        } else {
@@ -1731,6 +2150,7 @@ int tts_get_private_data(tts_h tts, const char* key, char** data)
                                        return ret;
                                }
                        }
+                       //LCOV_EXCL_STOP
                }
        }
 
@@ -1744,6 +2164,7 @@ int tts_get_private_data(tts_h tts, const char* key, char** data)
        return 0;
 }
 
+//LCOV_EXCL_START
 static Eina_Bool __tts_notify_error(void *data)
 {
        tts_h tts = (tts_h)data;
@@ -1772,6 +2193,44 @@ static Eina_Bool __tts_notify_error(void *data)
        return EINA_FALSE;
 }
 
+static void __start_reprepare_thread(void* data, Ecore_Thread* thread)
+{
+       SLOG(LOG_ERROR, TAG_TTSC, "[DEBUG] start reprepare thread. engine update status(%d)", g_engine_update_status);
+
+       tts_client_s* temp = (tts_client_s*)data;
+       if (NULL == temp) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] data is null");
+               return ;
+       }
+
+       int cnt = 0;
+       while (!g_engine_update_status && (cnt < 10)) {
+               SLOG(LOG_WARN, TAG_TTSC, "[WARNING] wait for starting update");
+               usleep(50000);
+               cnt++;
+       }
+
+       SLOG(LOG_ERROR, TAG_TTSC, "[DEBUG] update status(%d)", g_engine_update_status);
+
+       while (g_engine_update_status && (NULL != g_pkgmgr)) {
+//             SLOG(LOG_WARN, TAG_TTSC, "[WARNING] wait for finishing update");
+               usleep(200000);
+       }
+
+       SLOG(LOG_INFO, TAG_TTSC, "[INFO] finish updating. request to prepare");
+
+       if (0 != tts_prepare(temp->tts)) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to prepare");
+       }
+
+       return ;
+}
+
+static void __end_reprepare_thread(void* data, Ecore_Thread* thread)
+{
+       SLOG(LOG_INFO, TAG_TTSC, "[INFO] end reprepare thread");
+}
+
 int __tts_cb_error(int uid, tts_error_e reason, int utt_id, char* err_msg)
 {
        if (-1 == uid) {
@@ -1808,9 +2267,8 @@ int __tts_cb_error(int uid, tts_error_e reason, int utt_id, char* err_msg)
                                        SLOG(LOG_WARN, TAG_TTSC, "[WARNING] Service Reset");
 
                                        data->current_state = TTS_STATE_CREATED;
-                                       if (0 != tts_prepare(data->tts)) {
-                                               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to prepare");
-                                       }
+                                       data->reason = 0;
+                                       ecore_thread_run(__start_reprepare_thread, __end_reprepare_thread, NULL, data);
                                }
 
                                /* Next item */
@@ -1845,9 +2303,8 @@ int __tts_cb_error(int uid, tts_error_e reason, int utt_id, char* err_msg)
                        SLOG(LOG_WARN, TAG_TTSC, "[WARNING] Service Reset");
 
                        client->current_state = TTS_STATE_CREATED;
-                       if (0 != tts_prepare(client->tts)) {
-                               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to prepare");
-                       }
+                       client->reason = 0;
+                       ecore_thread_run(__start_reprepare_thread, __end_reprepare_thread, NULL, client);
                }
        }
 
@@ -1894,7 +2351,11 @@ int __tts_cb_set_state(int uid, int state)
        }
 
        if (NULL != client->state_changed_cb) {
-               ecore_timer_add(0, __tts_notify_state_changed, client->tts);
+               if (NULL != g_check_state_timer) {
+                       ecore_timer_del(g_check_state_timer);
+                       g_check_state_timer = NULL;
+               }
+               g_check_state_timer = ecore_timer_add(0, __tts_notify_state_changed, client->tts);
        } else {
                SLOG(LOG_WARN, TAG_TTSC, "[WARNING] State changed callback is null");
        }
@@ -1904,6 +2365,7 @@ int __tts_cb_set_state(int uid, int state)
 
        return 0;
 }
+//LCOV_EXCL_STOP
 
 int __tts_cb_utt_started(int uid, int utt_id)
 {
@@ -2014,6 +2476,11 @@ int tts_unset_state_changed_cb(tts_h tts)
        client->state_changed_cb = NULL;
        client->state_changed_user_data = NULL;
 
+       if (NULL != g_check_state_timer) {
+               ecore_timer_del(g_check_state_timer);
+               g_check_state_timer = NULL;
+       }
+
        SLOG(LOG_DEBUG, TAG_TTSC, "[SUCCESS] Unset state changed cb");
 
        return 0;
@@ -2328,6 +2795,7 @@ int tts_unset_engine_changed_cb(tts_h tts)
        return 0;
 }
 
+//LCOV_EXCL_START
 int tts_add_pcm(tts_h tts, int event, const void* data, unsigned int data_size, int audio_type, int rate)
 {
        if (0 != __tts_get_feature_enabled()) {
@@ -2350,7 +2818,7 @@ int tts_add_pcm(tts_h tts, int event, const void* data, unsigned int data_size,
                return TTS_ERROR_INVALID_PARAMETER;
        }
 
-       if (TTS_STATE_PLAYING != client->current_state) {
+       if (TTS_STATE_CREATED == client->current_state) {
                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] The current state is invalid.");
                return TTS_ERROR_INVALID_STATE;
        }
@@ -2362,10 +2830,17 @@ int tts_add_pcm(tts_h tts, int event, const void* data, unsigned int data_size,
 
        int ret = -1;
        int count = 0;
+       bool is_prepared = false;
        while (0 != ret) {
                ret = tts_dbus_request_add_pcm(client->uid, event, data, data_size, audio_type, rate);
                if (0 != ret) {
-                       if (TTS_ERROR_TIMED_OUT != ret) {
+                       if (TTS_ERROR_INVALID_PARAMETER == ret && false == is_prepared) {
+                               client->current_state = TTS_STATE_CREATED;
+                               if (0 == tts_prepare_sync(tts)) {
+                                       is_prepared = true;
+                                       SLOG(LOG_INFO, TAG_TTSC, "[INFO] Success tts_prepare_sync");
+                               }
+                       } else if (TTS_ERROR_TIMED_OUT != ret) {
                                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
                                return ret;
                        } else {
@@ -2419,10 +2894,17 @@ int tts_play_pcm(tts_h tts)
 
        int ret = -1;
        int count = 0;
+       bool is_prepared = false;
        while (0 != ret) {
                ret = tts_dbus_request_play_pcm(client->uid);
                if (0 != ret) {
-                       if (TTS_ERROR_TIMED_OUT != ret) {
+                       if (TTS_ERROR_INVALID_PARAMETER == ret && false == is_prepared) {
+                               client->current_state = TTS_STATE_CREATED;
+                               if (0 == tts_prepare_sync(tts)) {
+                                       is_prepared = true;
+                                       SLOG(LOG_INFO, TAG_TTSC, "[INFO] Success tts_prepare_sync");
+                               }
+                       } else if (TTS_ERROR_TIMED_OUT != ret) {
                                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
                                return ret;
                        } else {
@@ -2474,7 +2956,7 @@ int tts_stop_pcm(tts_h tts)
                return TTS_ERROR_INVALID_PARAMETER;
        }
 
-       if (TTS_STATE_PLAYING != client->current_state) {
+       if (TTS_STATE_CREATED == client->current_state) {
                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] The current state is invalid.");
                return TTS_ERROR_INVALID_STATE;
        }
@@ -2486,10 +2968,17 @@ int tts_stop_pcm(tts_h tts)
 
        int ret = -1;
        int count = 0;
+       bool is_prepared = false;
        while (0 != ret) {
                ret = tts_dbus_request_stop_pcm(client->uid);
                if (0 != ret) {
-                       if (TTS_ERROR_TIMED_OUT != ret) {
+                       if (TTS_ERROR_INVALID_PARAMETER == ret && false == is_prepared) {
+                               client->current_state = TTS_STATE_CREATED;
+                               if (0 == tts_prepare_sync(tts)) {
+                                       is_prepared = true;
+                                       SLOG(LOG_INFO, TAG_TTSC, "[INFO] Success tts_prepare_sync");
+                               }
+                       } else if (TTS_ERROR_TIMED_OUT != ret) {
                                SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] result : %s", __tts_get_error_code(ret));
                                return ret;
                        } else {
@@ -2518,3 +3007,97 @@ int tts_stop_pcm(tts_h tts)
 
        return TTS_ERROR_NONE;
 }
+//LCOV_EXCL_STOP
+
+int tts_repeat(tts_h tts, char** text_repeat, int* utt_id)
+{
+       if (0 != __tts_get_feature_enabled()) {
+               return TTS_ERROR_NOT_SUPPORTED;
+       }
+
+       SLOG(LOG_INFO, TAG_TTSC, "@@@ Repeat TTS");
+
+       if (NULL == tts) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Input handle is null.");
+               SLOG(LOG_DEBUG, TAG_TTSC, "@@@");
+               return TTS_ERROR_INVALID_PARAMETER;
+       }
+
+       if (NULL == text_repeat || NULL == utt_id) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Input parameter is null.");
+               SLOG(LOG_DEBUG, TAG_TTSC, "@@@");
+               return TTS_ERROR_INVALID_PARAMETER;
+       }
+
+       *text_repeat = NULL;
+       *utt_id = -1;
+
+       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, "@@@");
+               return TTS_ERROR_INVALID_PARAMETER;
+       }
+
+       if (TTS_STATE_READY != client->current_state) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] The current state is invalid. (%d)", client->current_state);
+               return TTS_ERROR_INVALID_STATE;
+       }
+
+       /* Clear the legacy and Add texts to be played repeatedly */
+       int ret = -1;
+       ret = tts_stop(tts);
+       if (TTS_ERROR_NONE != ret) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to clear the legacy");
+               return ret;
+       }
+
+       if (NULL != client->text_repeat) {
+               char* tmp_text = strdup(client->text_repeat);
+               char* tmp_lang = NULL;
+               if (NULL != g_language) {
+                       tmp_lang = strdup(g_language);
+               }
+               ret = tts_add_text(tts, tmp_text, tmp_lang, g_voice_type, g_speed, utt_id);
+               if (TTS_ERROR_NONE != ret) {
+                       SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to add texts for repetition.");
+                       if (NULL != tmp_text) {
+                               free(tmp_text);
+                               tmp_text = NULL;
+                       }
+                       if (NULL != tmp_lang) {
+                               free(tmp_lang);
+                               tmp_lang = NULL;
+                       }
+                       return ret;
+               }
+               *text_repeat = strdup(client->text_repeat);
+               SLOG(LOG_DEBUG, TAG_TTSC, "[DEBUG] text to repeat(%s), utt_id(%d)", (*text_repeat) ? *text_repeat : "NULL", *utt_id);
+               if (NULL != tmp_text) {
+                       free(tmp_text);
+                       tmp_text = NULL;
+               }
+               if (NULL != tmp_lang) {
+                       free(tmp_lang);
+                       tmp_lang = NULL;
+               }
+       } else {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] There is no previous added texts. Please add texts");
+               return TTS_ERROR_OPERATION_FAILED;
+       }
+
+       /* Play added texts */
+       ret = tts_play(tts);
+       if (TTS_ERROR_NONE != ret) {
+               SLOG(LOG_ERROR, TAG_TTSC, "[ERROR] Fail to play texts for repetition.");
+               if (NULL != *text_repeat) {
+                       free(*text_repeat);
+                       *text_repeat = NULL;
+               }
+               *utt_id = -1;
+               return ret;
+       }
+
+       return TTS_ERROR_NONE;
+}