server/ttsd_engine_agent.c

   1 /*
   2 *  Copyright (c) 2012, 2013 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
  15 #include <dlfcn.h>
  16 #include <dirent.h>
  17
  18 #include "ttsd_main.h"
  19 #include "ttsd_engine_agent.h"
  20 #include "ttsd_config.h"
  21
  22 #define ENGINE_PATH_SIZE        256
  23
  24 /*
  25 * Internal data structure
  26 */
  27 typedef struct {
  28         /* base info */
  29         char*   engine_uuid;
  30         char*   engine_name;
  31         char*   engine_path;
  32
  33         /* info for using engine load*/
  34         bool    is_set;
  35         bool    is_loaded;
  36         bool    need_network;
  37         void    *handle;
  38
  39         /* engine base setting */
  40         char*   default_lang;
  41         int     default_vctype;
  42         int     default_speed;
  43
  44         ttspe_funcs_s*  pefuncs;
  45         ttspd_funcs_s*  pdfuncs;
  46
  47         int (*ttsp_load_engine)(const ttspd_funcs_s* pdfuncs, ttspe_funcs_s* pefuncs);
  48         int (*ttsp_unload_engine)();
  49 } ttsengine_s;
  50
  51 typedef struct {
  52         char*   engine_uuid;
  53         char*   engine_path;
  54         char*   engine_name;
  55         char*   setting_ug_path;
  56         bool    use_network;
  57 } ttsengine_info_s;
  58
  59
  60 /** Init flag */
  61 static bool g_agent_init;
  62
  63 /** TTS engine list */
  64 static GList *g_engine_list;
  65
  66 /** Current engine information */
  67 static ttsengine_s g_cur_engine;
  68
  69 /** Result callback function */
  70 static synth_result_callback g_result_cb;
  71
  72
  73 /** Set current engine */
  74 int __internal_set_current_engine(const char* engine_uuid);
  75
  76 /** Check engine id */
  77 int __internal_check_engine_id(const char* engine_uuid);
  78
  79 /** Update engine list */
  80 int __internal_update_engine_list();
  81
  82 /** Get engine info */
  83 int __internal_get_engine_info(const char* filepath, ttsengine_info_s** info);
  84
  85 /** Callback function for result */
  86 bool __result_cb(ttsp_result_event_e event, const void* data, unsigned int data_size, void *user_data);
  87
  88 /** Callback function for voice list */
  89 bool __supported_voice_cb(const char* language, ttsp_voice_type_e type, void* user_data);
  90
  91 /** Free voice list */
  92 void __free_voice_list(GList* voice_list);
  93
  94 /** Callback function for engine info */
  95 void __engine_info_cb(const char* engine_uuid, const char* engine_name, const char* setting_ug_name,
  96                       bool use_network, void* user_data);
  97
  98 /** Callback fucntion for engine setting */
  99 bool __engine_setting_cb(const char* key, const char* value, void* user_data);
 100
 101
 102 int ttsd_engine_agent_init(synth_result_callback result_cb)
 103 {
 104         /* initialize static data */
 105         if (result_cb == NULL) {
 106                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] invalid parameter");
 107                 return TTSD_ERROR_INVALID_PARAMETER;
 108         }
 109
 110         g_result_cb = result_cb;
 111
 112         g_cur_engine.engine_uuid = NULL;
 113         g_cur_engine.engine_name = NULL;
 114         g_cur_engine.engine_path = NULL;
 115
 116         g_cur_engine.is_set = false;
 117         g_cur_engine.handle = NULL;
 118         g_cur_engine.pefuncs = (ttspe_funcs_s*)g_malloc0( sizeof(ttspe_funcs_s) );
 119         g_cur_engine.pdfuncs = (ttspd_funcs_s*)g_malloc0( sizeof(ttspd_funcs_s) );
 120
 121         g_agent_init = true;
 122
 123         if (0 != ttsd_config_get_default_voice(&(g_cur_engine.default_lang), &(g_cur_engine.default_vctype))) {
 124                 SLOG(LOG_WARN, get_tag(), "[Server WARNING] There is No default voice in config");
 125                 /* Set default voice */
 126                 g_cur_engine.default_lang = strdup("en_US");
 127                 g_cur_engine.default_vctype = TTSP_VOICE_TYPE_FEMALE;
 128         }
 129
 130         if (0 != ttsd_config_get_default_speed(&(g_cur_engine.default_speed))) {
 131                 SLOG(LOG_WARN, get_tag(), "[Server WARNING] There is No default speed in config");
 132                 ttsd_config_set_default_speed((int)TTSP_SPEED_NORMAL);
 133                 g_cur_engine.default_speed = TTSP_SPEED_NORMAL;
 134         }
 135
 136         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Initialize Engine Agent");
 137
 138         return 0;
 139 }
 140
 141 int ttsd_engine_agent_release()
 142 {
 143         if (false == g_agent_init) {
 144                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized");
 145                 return TTSD_ERROR_OPERATION_FAILED;
 146         }
 147
 148         /* unload current engine */
 149         ttsd_engine_agent_unload_current_engine();
 150
 151         /* release engine list */
 152         GList *iter = NULL;
 153         ttsengine_s *data = NULL;
 154
 155         if (g_list_length(g_engine_list) > 0) {
 156                 /* Get a first item */
 157                 iter = g_list_first(g_engine_list);
 158                 while (NULL != iter) {
 159                         /* Get data from item */
 160                         data = iter->data;
 161                         iter = g_list_remove(iter, data);
 162                 }
 163         }
 164         g_list_free(iter);
 165         /* release current engine data */
 166         if (g_cur_engine.pefuncs != NULL)
 167                 g_free(g_cur_engine.pefuncs);
 168
 169         if (g_cur_engine.pdfuncs != NULL)
 170                 g_free(g_cur_engine.pdfuncs);
 171
 172         g_result_cb = NULL;
 173         g_agent_init = false;
 174
 175         if (g_cur_engine.default_lang != NULL)
 176                 g_free(g_cur_engine.default_lang);
 177
 178
 179         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Release Engine Agent");
 180
 181         return 0;
 182 }
 183
 184 int ttsd_engine_agent_initialize_current_engine()
 185 {
 186         if (false == g_agent_init) {
 187                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 188                 return TTSD_ERROR_OPERATION_FAILED;
 189         }
 190
 191         /* update engine list */
 192         if (0 != __internal_update_engine_list()) {
 193                 SLOG(LOG_WARN, get_tag(), "[Engine Agent WARNING] No engine error");
 194                 return TTSD_ERROR_OPERATION_FAILED;
 195         }
 196
 197         /* 2. get current engine from config */
 198         char* cur_engine_uuid = NULL;
 199         bool is_get_engineid_from_config = false;
 200
 201         if (0 != ttsd_config_get_default_engine(&cur_engine_uuid)) {
 202                 /*not set current engine */
 203                 /*set system default engine*/
 204                 GList *iter = NULL;
 205                 ttsengine_info_s *data = NULL;
 206
 207                 if (g_list_length(g_engine_list) > 0) {
 208                         iter = g_list_first(g_engine_list);
 209                         char* default_engine = "27F277E9-BBC4-4dca-B553-D9884A3CDAA0";
 210
 211                         while (NULL != iter) {
 212                                 data = iter->data;
 213
 214                                 if (0 == strncmp(data->engine_uuid, default_engine, strlen(default_engine))) {
 215                                         /* current data is default engine */
 216                                         break;
 217                                 }
 218
 219                                 iter = g_list_next(iter);
 220                         }
 221                 } else {
 222                         SLOG(LOG_WARN, get_tag(), "[Engine Agent WARNING] Fail to set a engine of engine list\n");
 223                         return TTSD_ERROR_OPERATION_FAILED;
 224                 }
 225
 226                 if (NULL != data->engine_uuid) {
 227                         cur_engine_uuid = strdup(data->engine_uuid);
 228                 } else {
 229                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Data of current engine is corrupt\n");
 230                         return TTSD_ERROR_OPERATION_FAILED;
 231                 }
 232
 233                 is_get_engineid_from_config = false;
 234         } else {
 235                 is_get_engineid_from_config = true;
 236         }
 237
 238         /* check whether cur engine uuid is valid or not. */
 239         if (0 != __internal_check_engine_id(cur_engine_uuid)) {
 240                 SLOG(LOG_WARN, get_tag(), "[Engine Agent WARNING] It is not valid engine id from config");
 241
 242                 GList *iter = NULL;
 243
 244                 if (g_list_length(g_engine_list) > 0)
 245                         iter = g_list_first(g_engine_list);
 246                 else {
 247                         SLOG(LOG_WARN, get_tag(), "[Engine Agent ERROR] NO TTS Engine !!");
 248                         return TTSD_ERROR_OPERATION_FAILED;
 249                 }
 250
 251                 if (cur_engine_uuid != NULL)
 252                         g_free(cur_engine_uuid);
 253
 254                 ttsengine_info_s *data = NULL;
 255                 data = iter->data;
 256
 257                 cur_engine_uuid = g_strdup(data->engine_uuid);
 258
 259                 is_get_engineid_from_config = false;
 260         }
 261
 262         if (NULL != cur_engine_uuid)
 263                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] Current Engine Id : %s", cur_engine_uuid);
 264         else
 265                 return TTSD_ERROR_OPERATION_FAILED;
 266
 267         /* set current engine */
 268         if (0 != __internal_set_current_engine(cur_engine_uuid)) {
 269                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to set current engine ");
 270                 return TTSD_ERROR_OPERATION_FAILED;
 271         }
 272
 273         if (false == is_get_engineid_from_config) {
 274                 if (0 != ttsd_config_set_default_engine(cur_engine_uuid))
 275                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to set id to config");
 276         }
 277
 278         if (NULL != cur_engine_uuid)
 279                 g_free(cur_engine_uuid);
 280
 281         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Set current engine");
 282
 283         return 0;
 284 }
 285
 286 int __internal_check_engine_id(const char* engine_uuid)
 287 {
 288         GList *iter = NULL;
 289         ttsengine_s *data = NULL;
 290
 291         if (g_list_length(g_engine_list) > 0) {
 292                 iter = g_list_first(g_engine_list);
 293
 294                 while (NULL != iter) {
 295                         data = iter->data;
 296
 297                         if (0 == strncmp(engine_uuid, data->engine_uuid, strlen(data->engine_uuid)))
 298                                 return 0;
 299
 300                         iter = g_list_next(iter);
 301                 }
 302         }
 303
 304         return -1;
 305 }
 306
 307 void __engine_info_cb(const char* engine_uuid, const char* engine_name, const char* setting_ug_name,
 308                              bool use_network, void* user_data)
 309 {
 310         ttsengine_info_s* temp = (ttsengine_info_s*)user_data;
 311
 312         temp->engine_uuid = g_strdup(engine_uuid);
 313         temp->engine_name = g_strdup(engine_name);
 314         temp->setting_ug_path = g_strdup(setting_ug_name);
 315         temp->use_network = use_network;
 316 }
 317
 318 int __internal_get_engine_info(const char* filepath, ttsengine_info_s** info)
 319 {
 320         char *error;
 321         void* handle;
 322
 323         handle = dlopen (filepath, RTLD_LAZY );
 324
 325         if (!handle) {
 326                 SLOG(LOG_WARN, get_tag(), "[Engine Agent] Invalid engine : %s", filepath);
 327                 return TTSD_ERROR_OPERATION_FAILED;
 328         }
 329
 330         /* link engine to daemon */
 331         dlsym(handle, "ttsp_load_engine");
 332         if ((error = dlerror()) != NULL) {
 333                 SLOG(LOG_WARN, get_tag(), "[Engine Agent] Invalid engine. Fail to open ttsp_load_engine : %s", filepath);
 334                 dlclose(handle);
 335                 return TTSD_ERROR_OPERATION_FAILED;
 336         }
 337
 338         dlsym(handle, "ttsp_unload_engine");
 339         if ((error = dlerror()) != NULL) {
 340                 SLOG(LOG_WARN, get_tag(), "[Engine Agent] Invalid engine. Fail to open ttsp_unload_engine : %s", filepath);
 341                 dlclose(handle);
 342                 return TTSD_ERROR_OPERATION_FAILED;
 343         }
 344
 345         int (*get_engine_info)(ttsp_engine_info_cb callback, void* user_data);
 346
 347         get_engine_info = (int (*)(ttsp_engine_info_cb, void*))dlsym(handle, "ttsp_get_engine_info");
 348         if (NULL != (error = dlerror()) || NULL == get_engine_info) {
 349                 SLOG(LOG_WARN, get_tag(), "[Engine Agent] ttsp_get_engine_info() link error");
 350                 dlclose(handle);
 351                 return TTSD_ERROR_OPERATION_FAILED;
 352         }
 353
 354         ttsengine_info_s* temp;
 355         temp = (ttsengine_info_s*)g_malloc0(sizeof(ttsengine_info_s));
 356
 357         /* get engine info */
 358         if (0 != get_engine_info(&__engine_info_cb, (void*)temp)) {
 359                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to get engine info");
 360                 dlclose(handle);
 361                 g_free(temp);
 362                 return TTSD_ERROR_OPERATION_FAILED;
 363         }
 364
 365         /* close engine */
 366         dlclose(handle);
 367
 368         if (TTSD_MODE_NOTIFICATION == ttsd_get_mode() || TTSD_MODE_SCREEN_READER == ttsd_get_mode()) {
 369                 if (true == temp->use_network) {
 370                         free(temp);
 371                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent WARNING] %s is invalid because of network based engine.", temp->engine_name);
 372                         return TTSD_ERROR_OPERATION_FAILED;
 373                 }
 374         }
 375
 376         temp->engine_path = g_strdup(filepath);
 377
 378         SLOG(LOG_DEBUG, get_tag(), "----- Valid engine");
 379         SLOG(LOG_DEBUG, get_tag(), "Engine uuid : %s", temp->engine_uuid);
 380         SLOG(LOG_DEBUG, get_tag(), "Engine name : %s", temp->engine_name);
 381         SLOG(LOG_DEBUG, get_tag(), "Setting ug path : %s", temp->setting_ug_path);
 382         SLOG(LOG_DEBUG, get_tag(), "Engine path : %s", temp->engine_path);
 383         SLOG(LOG_DEBUG, get_tag(), "Use network : %s", temp->use_network ? "true":"false");
 384         SLOG(LOG_DEBUG, get_tag(), "-----");
 385         SLOG(LOG_DEBUG, get_tag(), "  ");
 386
 387         *info = temp;
 388
 389         return 0;
 390 }
 391
 392 int __internal_update_engine_list()
 393 {
 394         /* relsease engine list */
 395         GList *iter = NULL;
 396         ttsengine_info_s *data = NULL;
 397
 398         if (g_list_length(g_engine_list) > 0) {
 399                 iter = g_list_first(g_engine_list);
 400
 401                 while (NULL != iter) {
 402                         data = iter->data;
 403
 404                         if (data != NULL)
 405                                 g_free(data);
 406
 407                         g_engine_list = g_list_remove_link(g_engine_list, iter);
 408                         iter = g_list_first(g_engine_list);
 409                 }
 410         }
 411
 412         /* get file name from engine directory and get engine information from each filename */
 413         DIR *dp;
 414         struct dirent *dirp;
 415         dp = opendir(ENGINE_DIRECTORY_DEFAULT);
 416
 417         if (dp != NULL) {
 418                 while ((dirp = readdir(dp)) != NULL) {
 419                         ttsengine_info_s* info;
 420                         char* filepath = NULL;
 421                         int file_size;
 422
 423                         file_size = strlen(ENGINE_DIRECTORY_DEFAULT) + strlen(dirp->d_name) + 5;
 424                         filepath = (char*)g_malloc0( sizeof(char) * file_size);
 425
 426                         if (NULL != filepath) {
 427                                 strncpy(filepath, ENGINE_DIRECTORY_DEFAULT, strlen(ENGINE_DIRECTORY_DEFAULT) );
 428                                 strncat(filepath, "/", strlen("/") );
 429                                 strncat(filepath, dirp->d_name, strlen(dirp->d_name) );
 430                         } else {
 431                                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not enough memory!!" );
 432                                 continue;
 433                         }
 434
 435                         /* get its info and update engine list */
 436                         if (0 == __internal_get_engine_info(filepath, &info)) {
 437                                 /* add engine info to g_engine_list */
 438                                 g_engine_list = g_list_append(g_engine_list, info);
 439                         }
 440
 441                         if (NULL != filepath)
 442                                 g_free(filepath);
 443                 }
 444
 445                 closedir(dp);
 446         }
 447
 448         dp = opendir(ENGINE_DIRECTORY_DOWNLOAD);
 449
 450         if (dp != NULL) {
 451                 while ((dirp = readdir(dp)) != NULL) {
 452                         ttsengine_info_s* info;
 453                         char* filepath = NULL;
 454                         int file_size;
 455
 456                         file_size = strlen(ENGINE_DIRECTORY_DOWNLOAD) + strlen(dirp->d_name) + 5;
 457                         filepath = (char*)g_malloc0( sizeof(char) * file_size);
 458
 459                         if (NULL != filepath) {
 460                                 strcpy(filepath, ENGINE_DIRECTORY_DOWNLOAD);
 461                                 strcat(filepath, "/");
 462                                 strcat(filepath, dirp->d_name);
 463                         } else {
 464                                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not enough memory!!" );
 465                                 continue;
 466                         }
 467
 468                         /* get its info and update engine list */
 469                         if (0 == __internal_get_engine_info(filepath, &info)) {
 470                                 /* add engine info to g_engine_list */
 471                                 g_engine_list = g_list_append(g_engine_list, info);
 472                         }
 473
 474                         if (NULL != filepath)
 475                                 g_free(filepath);
 476                 }
 477
 478                 closedir(dp);
 479         }
 480
 481         if (g_list_length(g_engine_list) <= 0) {
 482                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] No Engine\n");
 483                 return TTSD_ERROR_OPERATION_FAILED;
 484         }
 485
 486 #ifdef ENGINE_AGENT_DEBUG
 487         ttsd_print_enginelist();
 488 #endif
 489
 490         return 0;
 491 }
 492
 493 int __internal_set_current_engine(const char* engine_uuid)
 494 {
 495         /* check whether engine id is valid or not. */
 496         GList *iter = NULL;
 497         ttsengine_info_s *data = NULL;
 498
 499         bool flag = false;
 500         if (g_list_length(g_engine_list) > 0) {
 501                 iter = g_list_first(g_engine_list);
 502
 503                 while (NULL != iter) {
 504                         data = iter->data;
 505
 506                         if (0 == strncmp(data->engine_uuid, engine_uuid, strlen(engine_uuid))) {
 507                                 flag = true;
 508                                 break;
 509                         }
 510
 511                         /*Get next item*/
 512                         iter = g_list_next(iter);
 513                 }
 514         }
 515
 516         /* If current engine does not exist, return error */
 517         if (false == flag) {
 518                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] __internal_set_current_engine : Cannot find engine id");
 519                 return TTSD_ERROR_OPERATION_FAILED;
 520         } else {
 521                 if (g_cur_engine.engine_uuid != NULL) {
 522                         /*compare current engine uuid */
 523                         if (0 == strncmp(g_cur_engine.engine_uuid, data->engine_uuid, strlen(engine_uuid))) {
 524                                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] tts engine has already been set");
 525                                 return 0;
 526                         }
 527                 }
 528         }
 529
 530         /* set data from g_engine_list */
 531         if (g_cur_engine.engine_uuid != NULL)   g_free(g_cur_engine.engine_uuid);
 532         if (g_cur_engine.engine_name != NULL)   g_free(g_cur_engine.engine_name);
 533         if (g_cur_engine.engine_path != NULL)   g_free(g_cur_engine.engine_path);
 534
 535         if (NULL == data->engine_uuid || NULL == data->engine_name || NULL == data->engine_path) {
 536                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] __internal_set_current_engine : Engine data is NULL");
 537                 return TTSD_ERROR_OPERATION_FAILED;
 538         }
 539
 540         g_cur_engine.engine_uuid = g_strdup(data->engine_uuid);
 541         g_cur_engine.engine_name = g_strdup(data->engine_name);
 542         g_cur_engine.engine_path = g_strdup(data->engine_path);
 543
 544         g_cur_engine.handle = NULL;
 545         g_cur_engine.is_loaded = false;
 546         g_cur_engine.is_set = true;
 547         g_cur_engine.need_network = data->use_network;
 548
 549         SLOG(LOG_DEBUG, get_tag(), "-----");
 550         SLOG(LOG_DEBUG, get_tag(), "Current engine uuid : %s", g_cur_engine.engine_uuid);
 551         SLOG(LOG_DEBUG, get_tag(), "Current engine name : %s", g_cur_engine.engine_name);
 552         SLOG(LOG_DEBUG, get_tag(), "Current engine path : %s", g_cur_engine.engine_path);
 553         SLOG(LOG_DEBUG, get_tag(), "-----");
 554
 555         return 0;
 556 }
 557
 558 int ttsd_engine_agent_load_current_engine()
 559 {
 560         if (false == g_agent_init) {
 561                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 562                 return TTSD_ERROR_OPERATION_FAILED;
 563         }
 564
 565         if (false == g_cur_engine.is_set) {
 566                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] ttsd_engine_agent_load_current_engine : No Current Engine ");
 567                 return TTSD_ERROR_OPERATION_FAILED;
 568         }
 569
 570         /* check whether current engine is loaded or not */
 571         if (true == g_cur_engine.is_loaded ) {
 572                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent] ttsd_engine_agent_load_current_engine : Engine has already been loaded " );
 573                 return 0;
 574         }
 575
 576         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] current engine path : %s\n", g_cur_engine.engine_path);
 577
 578         /* open engine */
 579         char *error = NULL;
 580         g_cur_engine.handle = dlopen(g_cur_engine.engine_path, RTLD_LAZY); /* RTLD_LAZY RTLD_NOW*/
 581
 582         if (NULL != (error = dlerror()) || NULL == g_cur_engine.handle) {
 583                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to get current engine handle : dlopen error ($s)", error);
 584                 return -2;
 585         }
 586
 587         g_cur_engine.ttsp_unload_engine = (int (*)())dlsym(g_cur_engine.handle, "ttsp_unload_engine");
 588         if (NULL != (error = dlerror()) || NULL == g_cur_engine.ttsp_unload_engine) {
 589                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to link daemon to ttsp_unload_engine() of current engine : (%s)", error);
 590                 return -3;
 591         }
 592
 593         g_cur_engine.ttsp_load_engine = (int (*)(const ttspd_funcs_s* , ttspe_funcs_s*) )dlsym(g_cur_engine.handle, "ttsp_load_engine");
 594         if (NULL != (error = dlerror()) || NULL == g_cur_engine.ttsp_load_engine) {
 595                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to link daemon to ttsp_load_engine() of current engine : %s", error);
 596                 return -3;
 597         }
 598
 599         /* load engine */
 600         g_cur_engine.pdfuncs->version = 1;
 601         g_cur_engine.pdfuncs->size = sizeof(ttspd_funcs_s);
 602
 603         int ret = 0;
 604         ret = g_cur_engine.ttsp_load_engine(g_cur_engine.pdfuncs, g_cur_engine.pefuncs);
 605         if (0 != ret) {
 606                 printf("Fail load '%s' engine\n", g_cur_engine.engine_path);
 607                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to load engine : result(%d)");
 608                 return TTSD_ERROR_OPERATION_FAILED;
 609         }
 610
 611         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] engine info : version(%d), size(%d)\n",g_cur_engine.pefuncs->version, g_cur_engine.pefuncs->size );
 612
 613         /* engine error check */
 614         if (g_cur_engine.pefuncs->size != sizeof(ttspe_funcs_s)) {
 615                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] ttsd_engine_agent_load_current_engine : current engine is not valid");
 616                 return TTSD_ERROR_OPERATION_FAILED;
 617         }
 618
 619         /* initalize engine */
 620         if (NULL == g_cur_engine.pefuncs->initialize) {
 621                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] init function of engine is NULL!!");
 622                 return TTSD_ERROR_OPERATION_FAILED;
 623         }
 624
 625         ret = g_cur_engine.pefuncs->initialize(__result_cb);
 626         if (0 != ret) {
 627                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to initialize current engine : result(%d)\n", ret);
 628                 return TTSD_ERROR_OPERATION_FAILED;
 629         }
 630
 631         /* select default voice */
 632         bool set_voice = false;
 633         if (NULL != g_cur_engine.default_lang) {
 634                 if (NULL == g_cur_engine.pefuncs->is_valid_voice) {
 635                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] is_valid_voice() of engine is NULL!!");
 636                         return TTSD_ERROR_OPERATION_FAILED;
 637                 }
 638
 639                 if (true == g_cur_engine.pefuncs->is_valid_voice(g_cur_engine.default_lang, g_cur_engine.default_vctype)) {
 640                         set_voice = true;
 641                         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Set origin default voice to current engine : lang(%s), type(%d)",
 642                                 g_cur_engine.default_lang,  g_cur_engine.default_vctype);
 643                 } else {
 644                         SLOG(LOG_WARN, get_tag(), "[Engine Agent WARNING] Fail set origin default voice : lang(%s), type(%d)\n",
 645                                 g_cur_engine.default_lang, g_cur_engine.default_vctype);
 646                 }
 647         }
 648
 649         if (false == set_voice) {
 650                 if (NULL == g_cur_engine.pefuncs->foreach_voices) {
 651                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] get_voice_list of engine is NULL!!");
 652                         return TTSD_ERROR_OPERATION_FAILED;
 653                 }
 654
 655                 /* get language list */
 656                 int ret;
 657                 GList* voice_list = NULL;
 658
 659                 ret = g_cur_engine.pefuncs->foreach_voices(__supported_voice_cb, &voice_list);
 660
 661                 if (0 == ret && 0 < g_list_length(voice_list)) {
 662                         GList *iter = NULL;
 663                         voice_s* voice;
 664
 665                         iter = g_list_first(voice_list);
 666
 667                         if (NULL != iter) {
 668                                 voice = iter->data;
 669
 670                                 if (true != g_cur_engine.pefuncs->is_valid_voice(voice->language, voice->type)) {
 671                                         SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail voice is NOT valid");
 672                                         return TTSD_ERROR_OPERATION_FAILED;
 673                                 }
 674
 675                                 ttsd_config_set_default_voice(voice->language, (int)voice->type);
 676
 677                                 g_cur_engine.default_lang = g_strdup(voice->language);
 678                                 g_cur_engine.default_vctype = voice->type;
 679
 680                                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Select default voice : lang(%s), type(%d)",
 681                                         voice->language,  voice->type);
 682
 683
 684                         } else {
 685                                 SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail to get language list : result(%d)\n", ret);
 686                                 return TTSD_ERROR_OPERATION_FAILED;
 687                         }
 688
 689                         __free_voice_list(voice_list);
 690                 } else {
 691                         SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail to get language list : result(%d)\n", ret);
 692                         return TTSD_ERROR_OPERATION_FAILED;
 693                 }
 694         }
 695
 696         g_cur_engine.is_loaded = true;
 697
 698         return 0;
 699 }
 700
 701 int ttsd_engine_agent_unload_current_engine()
 702 {
 703         if (false == g_agent_init) {
 704                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 705                 return TTSD_ERROR_OPERATION_FAILED;
 706         }
 707
 708         if (false == g_cur_engine.is_set) {
 709                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] No Current Engine ");
 710                 return TTSD_ERROR_OPERATION_FAILED;
 711         }
 712
 713         if (false == g_cur_engine.is_loaded) {
 714                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] Engine has already been unloaded " );
 715                 return 0;
 716         }
 717
 718         /* shutdown engine */
 719         if (NULL == g_cur_engine.pefuncs->deinitialize) {
 720                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] The deinitialize() of engine is NULL!!");
 721         } else {
 722                 int ret = 0;
 723                 ret = g_cur_engine.pefuncs->deinitialize();
 724                 if (0 != ret) {
 725                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent] Fail deinitialize() : result(%d)\n", ret);
 726                 }
 727         }
 728
 729         /* unload engine */
 730         g_cur_engine.ttsp_unload_engine();
 731
 732         dlclose(g_cur_engine.handle);
 733
 734         /* reset current engine data */
 735         g_cur_engine.handle = NULL;
 736         g_cur_engine.is_loaded = false;
 737
 738         return 0;
 739 }
 740
 741 bool ttsd_engine_agent_need_network()
 742 {
 743         if (false == g_agent_init) {
 744                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 745                 return TTSD_ERROR_OPERATION_FAILED;
 746         }
 747
 748         if (false == g_cur_engine.is_loaded) {
 749                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
 750                 return TTSD_ERROR_OPERATION_FAILED;
 751         }
 752
 753         return g_cur_engine.need_network;
 754 }
 755
 756 bool ttsd_engine_select_valid_voice(const char* lang, int type, char** out_lang, ttsp_voice_type_e* out_type)
 757 {
 758         if (NULL == lang || NULL == out_lang || NULL == out_type) {
 759                 return false;
 760         }
 761
 762         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] Select voice : input lang(%s) , input type(%d), default lang(%s), default type(%d)",
 763                 lang, type, g_cur_engine.default_lang, g_cur_engine.default_vctype);
 764
 765
 766         /* case 1 : Both are default */
 767         if (0 == strncmp(lang, "default", strlen("default")) && 0 == type) {
 768                 *out_lang = strdup(g_cur_engine.default_lang);
 769                 *out_type = g_cur_engine.default_vctype;
 770                 return true;
 771         }
 772
 773         /* Get voice list */
 774         if (NULL == g_cur_engine.pefuncs->foreach_voices) {
 775                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] foreach_voices of engine is NULL!!");
 776                 return TTSD_ERROR_OPERATION_FAILED;
 777         }
 778
 779         GList* voice_list = NULL;
 780         int ret = 0;
 781
 782         ret = g_cur_engine.pefuncs->foreach_voices(__supported_voice_cb, &voice_list);
 783         if (0 != ret || 0 >= g_list_length(voice_list)) {
 784                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to get voice list : result(%d)", ret);
 785                 return false;
 786         }
 787
 788         bool result;
 789         result = false;
 790
 791         GList *iter = NULL;
 792         voice_s* voice;
 793
 794         /* lang and type are not default type */
 795         if (0 != strncmp(lang, "default", strlen("default")) && 0 != type) {
 796                 iter = g_list_first(voice_list);
 797
 798                 while (NULL != iter) {
 799                         /* Get handle data from list */
 800                         voice = iter->data;
 801
 802                         if (0 == strncmp(voice->language, lang, strlen(lang)) &&  voice->type == type) {
 803                                 *out_lang = strdup(voice->language);
 804                                 *out_type = voice->type;
 805                                 result = true;
 806                                 break;
 807                         }
 808
 809                         iter = g_list_next(iter);
 810                 }
 811
 812         } else if (0 != strncmp(lang, "default", strlen("default")) && 0 == type) {
 813                 /* Only type is default */
 814                 if (0 == strncmp(lang, g_cur_engine.default_lang, strlen(g_cur_engine.default_lang))) {
 815                         *out_lang = strdup(g_cur_engine.default_lang);
 816                         *out_type = g_cur_engine.default_vctype;
 817                         result = true;
 818                 } else {
 819                         voice_s* voice_selected = NULL;
 820                         iter = g_list_first(voice_list);
 821                         while (NULL != iter) {
 822                                 /* Get handle data from list */
 823                                 voice = iter->data;
 824
 825                                 if (0 == strncmp(voice->language, lang, strlen(lang))) {
 826                                         voice_selected = voice;
 827                                         if (voice->type == g_cur_engine.default_vctype) {
 828                                                 voice_selected = voice;
 829                                                 break;
 830                                         }
 831                                 }
 832                                 iter = g_list_next(iter);
 833                         }
 834
 835                         if (NULL != voice_selected) {
 836                                 *out_lang = strdup(voice_selected->language);
 837                                 *out_type = voice_selected->type;
 838                                 result = true;
 839                         }
 840                 }
 841         } else if (0 == strncmp(lang, "default", strlen("default")) && 0 != type) {
 842                 /* Only lang is default */
 843                 if (type == g_cur_engine.default_vctype) {
 844                         *out_lang = strdup(g_cur_engine.default_lang);
 845                         *out_type = g_cur_engine.default_vctype;
 846                         result = true;
 847                 } else {
 848                         voice_s* voice_selected = NULL;
 849                         iter = g_list_first(voice_list);
 850                         while (NULL != iter) {
 851                                 /* Get handle data from list */
 852                                 voice = iter->data;
 853
 854                                 if (0 == strncmp(voice->language, g_cur_engine.default_lang, strlen(g_cur_engine.default_lang)) ) {
 855                                         voice_selected = voice;
 856                                         if (voice->type == type) {
 857                                                 voice_selected = voice;
 858                                                 break;
 859                                         }
 860                                 }
 861                                 iter = g_list_next(iter);
 862                         }
 863
 864                         if (NULL != voice_selected) {
 865                                 *out_lang = strdup(voice->language);
 866                                 *out_type = voice_selected->type;
 867                                 result = true;
 868                         }
 869                 }
 870         }
 871
 872         if (true == result) {
 873                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] Selected voice : lang(%s), type(%d)", *out_lang, *out_type);
 874         }
 875
 876         __free_voice_list(voice_list);
 877
 878         return result;
 879 }
 880
 881 bool ttsd_engine_agent_is_same_engine(const char* engine_id)
 882 {
 883         if (false == g_agent_init) {
 884                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 885                 return false;
 886         }
 887
 888         if (false == g_cur_engine.is_loaded) {
 889                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
 890                 return false;
 891         }
 892
 893         /* compare current engine and engine id.*/
 894         if (0 == strncmp(g_cur_engine.engine_uuid, engine_id, strlen(engine_id))) {
 895                 return true;
 896         }
 897
 898         return false;
 899 }
 900
 901 int ttsd_engine_agent_set_default_voice(const char* language, ttsp_voice_type_e vctype)
 902 {
 903         if (false == g_agent_init) {
 904                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 905                 return TTSD_ERROR_OPERATION_FAILED;
 906         }
 907
 908         if (false == g_cur_engine.is_loaded) {
 909                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
 910                 return TTSD_ERROR_OPERATION_FAILED;
 911         }
 912
 913         if (NULL == g_cur_engine.pefuncs->is_valid_voice) {
 914                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] The function of engine is NULL!!");
 915                 return TTSD_ERROR_OPERATION_FAILED;
 916         }
 917
 918         int ret = -1;
 919         if(false == g_cur_engine.pefuncs->is_valid_voice(language, vctype)) {
 920                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Voice is NOT valid !!");
 921                 return TTSD_ERROR_INVALID_VOICE;
 922         }
 923
 924         if (NULL != g_cur_engine.default_lang)
 925                 free(g_cur_engine.default_lang);
 926
 927         g_cur_engine.default_lang = strdup(language);
 928         g_cur_engine.default_vctype = vctype;
 929
 930         ret = ttsd_config_set_default_voice(language, (int)vctype);
 931         if (0 == ret) {
 932                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Set default voice : lang(%s), type(%d)",
 933                         g_cur_engine.default_lang, g_cur_engine.default_vctype);
 934         } else {
 935                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to write default voice to config (%d)", ret);
 936         }
 937 }
 938
 939 /******************************************************************************************
 940 * TTS Engine Interfaces for client
 941 *******************************************************************************************/
 942
 943 int ttsd_engine_start_synthesis(const char* lang, const ttsp_voice_type_e vctype, const char* text, const int speed, void* user_param)
 944 {
 945         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] start ttsd_engine_start_synthesis()");
 946
 947         if (false == g_agent_init) {
 948                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 949                 return TTSD_ERROR_OPERATION_FAILED;
 950         }
 951
 952         if (false == g_cur_engine.is_loaded) {
 953                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
 954                 return TTSD_ERROR_OPERATION_FAILED;
 955         }
 956
 957         /* select voice for default */
 958         char* temp_lang = NULL;
 959         ttsp_voice_type_e temp_type;
 960         if (true != ttsd_engine_select_valid_voice(lang, vctype, &temp_lang, &temp_type)) {
 961                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Fail to select default voice");
 962                 return TTSD_ERROR_INVALID_VOICE;
 963         } else {
 964                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] Start synthesis : language(%s), type(%d), speed(%d), text(%s)",
 965                         temp_lang, temp_type, speed, text);
 966         }
 967
 968         if (NULL == g_cur_engine.pefuncs->start_synth) {
 969                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] start_synth() of engine is NULL!!");
 970                 return TTSD_ERROR_OPERATION_FAILED;
 971         }
 972
 973         ttsp_speed_e temp_speed;
 974
 975         if (0 == speed) {
 976                 temp_speed = g_cur_engine.default_speed;
 977         } else {
 978                 temp_speed = speed;
 979         }
 980
 981         /* synthesize text */
 982         int ret = 0;
 983         ret = g_cur_engine.pefuncs->start_synth(temp_lang, temp_type, text, temp_speed, user_param);
 984         if (0 != ret) {
 985                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] ***************************************", ret);
 986                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] * synthesize error : result(%6d) *", ret);
 987                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] ***************************************", ret);
 988                 return TTSD_ERROR_OPERATION_FAILED;
 989         }
 990
 991         if (NULL == temp_lang)
 992                 free(temp_lang);
 993
 994         return 0;
 995 }
 996
 997
 998 int ttsd_engine_cancel_synthesis()
 999 {
1000         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] start ttsd_engine_cancel_synthesis()");
1001
1002         if (false == g_agent_init) {
1003                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1004                 return TTSD_ERROR_OPERATION_FAILED;
1005         }
1006
1007         if (false == g_cur_engine.is_loaded) {
1008                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1009                 return TTSD_ERROR_OPERATION_FAILED;
1010         }
1011
1012         if (NULL == g_cur_engine.pefuncs->cancel_synth) {
1013                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] cancel_synth() of engine is NULL!!");
1014                 return TTSD_ERROR_OPERATION_FAILED;
1015         }
1016
1017         /* stop synthesis */
1018         int ret = 0;
1019         ret = g_cur_engine.pefuncs->cancel_synth();
1020         if (0 != ret) {
1021                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail cancel synthesis : result(%d)", ret);
1022                 return TTSD_ERROR_OPERATION_FAILED;
1023         }
1024
1025         return 0;
1026 }
1027
1028 int ttsd_engine_get_audio_format( ttsp_audio_type_e* type, int* rate, int* channels)
1029 {
1030         if (false == g_agent_init) {
1031                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1032                 return TTSD_ERROR_OPERATION_FAILED;
1033         }
1034
1035         if (false == g_cur_engine.is_loaded) {
1036                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1037                 return TTSD_ERROR_OPERATION_FAILED;
1038         }
1039
1040         if (NULL == g_cur_engine.pefuncs->get_audio_format) {
1041                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] get_audio_format() of engine is NULL!!");
1042                 return TTSD_ERROR_OPERATION_FAILED;
1043         }
1044
1045         int ret = 0;
1046         ret = g_cur_engine.pefuncs->get_audio_format(type, rate, channels);
1047         if (0 != ret) {
1048                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to get audio format : result(%d)", ret);
1049                 return TTSD_ERROR_OPERATION_FAILED;
1050         } else
1051                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] get audio format : type(%d), rate(%d), channel(%d)", *type, *rate, *channels);
1052
1053         return 0;
1054 }
1055
1056 bool __supported_voice_cb(const char* language, ttsp_voice_type_e type, void* user_data)
1057 {
1058         GList** voice_list = (GList**)user_data;
1059
1060         if (NULL == language || NULL == voice_list) {
1061                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Input parameter is NULL in voice list callback!!!!");
1062                 return false;
1063         }
1064
1065         SLOG(LOG_DEBUG, get_tag(), "-- Language(%s), Type(%d)", language, type);
1066
1067         voice_s* voice = g_malloc0(sizeof(voice_s));
1068         voice->language = strdup(language);
1069         voice->type = type;
1070
1071         *voice_list = g_list_append(*voice_list, voice);
1072
1073         return true;
1074 }
1075
1076 int ttsd_engine_get_voice_list(GList** voice_list)
1077 {
1078         if (false == g_agent_init) {
1079                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1080                 return TTSD_ERROR_OPERATION_FAILED;
1081         }
1082
1083         if (false == g_cur_engine.is_loaded) {
1084                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1085                 return TTSD_ERROR_OPERATION_FAILED;
1086         }
1087
1088         if (NULL == g_cur_engine.pefuncs->foreach_voices) {
1089                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] The function of engine is NULL!!");
1090                 return TTSD_ERROR_OPERATION_FAILED;
1091         }
1092
1093         int ret = 0;
1094         ret = g_cur_engine.pefuncs->foreach_voices(__supported_voice_cb, (void*)voice_list);
1095         if (0 != ret) {
1096                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Fail to get voice list : result(%d)", ret);
1097                 return TTSD_ERROR_OPERATION_FAILED;
1098         }
1099
1100         return 0;
1101 }
1102
1103 int ttsd_engine_get_default_voice( char** lang, ttsp_voice_type_e* vctype )
1104 {
1105         if (false == g_agent_init) {
1106                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1107                 return TTSD_ERROR_OPERATION_FAILED;
1108         }
1109
1110         if (false == g_cur_engine.is_loaded) {
1111                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1112                 return TTSD_ERROR_OPERATION_FAILED;
1113         }
1114
1115         if (NULL == lang || NULL == vctype) {
1116                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] BAD Parameter");
1117                 return TTSD_ERROR_INVALID_PARAMETER;
1118         }
1119
1120         if (NULL != g_cur_engine.default_lang) {
1121                 *lang = g_strdup(g_cur_engine.default_lang);
1122                 *vctype = g_cur_engine.default_vctype;
1123
1124                 SLOG(LOG_DEBUG, get_tag(), "[Engine] Get default voice : language(%s), type(%d)\n", *lang, *vctype);
1125         } else {
1126                 if (NULL == g_cur_engine.pefuncs->foreach_voices) {
1127                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] get_voice_list of engine is NULL!!");
1128                         return TTSD_ERROR_OPERATION_FAILED;
1129                 }
1130
1131                 /* get language list */
1132                 int ret;
1133                 GList* voice_list = NULL;
1134
1135                 ret = g_cur_engine.pefuncs->foreach_voices(__supported_voice_cb, &voice_list);
1136
1137                 if (0 == ret && 0 < g_list_length(voice_list)) {
1138                         GList *iter = NULL;
1139                         voice_s* voice;
1140
1141                         iter = g_list_first(voice_list);
1142
1143                         if (NULL != iter) {
1144                                 voice = iter->data;
1145
1146                                 if (true != g_cur_engine.pefuncs->is_valid_voice(voice->language, voice->type)) {
1147                                         SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail voice is NOT valid ");
1148                                         return TTSD_ERROR_OPERATION_FAILED;
1149                                 }
1150
1151                                 ttsd_config_set_default_voice(voice->language, (int)voice->type);
1152
1153                                 if (NULL != g_cur_engine.default_lang)
1154                                         g_free(g_cur_engine.default_lang);
1155
1156                                 g_cur_engine.default_lang = g_strdup(voice->language);
1157                                 g_cur_engine.default_vctype = voice->type;
1158
1159                                 *lang = g_strdup(g_cur_engine.default_lang);
1160                                 *vctype = g_cur_engine.default_vctype = voice->type;
1161
1162                                 SLOG(LOG_DEBUG, get_tag(), "[Engine] Get default voice (New selected) : language(%s), type(%d)\n", *lang, *vctype);
1163                         } else {
1164                                 SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail to get language list : result(%d)\n", ret);
1165                                 return TTSD_ERROR_OPERATION_FAILED;
1166                         }
1167
1168                         __free_voice_list(voice_list);
1169                 } else {
1170                         SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail to get language list : result(%d)\n", ret);
1171                         return TTSD_ERROR_OPERATION_FAILED;
1172                 }
1173         }
1174
1175         return 0;
1176 }
1177
1178 /*
1179 * TTS Engine Interfaces for setting
1180 */
1181 int ttsd_engine_setting_get_engine_list(GList** engine_list)
1182 {
1183         if (false == g_agent_init) {
1184                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1185                 return TTSD_ERROR_OPERATION_FAILED;
1186         }
1187
1188         if (NULL == engine_list) {
1189                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Input parameter is NULL" );
1190                 return TTSD_ERROR_INVALID_PARAMETER;
1191         }
1192
1193         /* update engine list */
1194         if (0 != __internal_update_engine_list()) {
1195                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail __internal_update_engine_list()");
1196                 return TTSD_ERROR_OPERATION_FAILED;
1197         }
1198
1199         GList *iter = NULL;
1200         ttsengine_info_s *data = NULL;
1201
1202         iter = g_list_first(g_engine_list);
1203
1204         SLOG(LOG_DEBUG, get_tag(), "----- [Engine Agent] engine list -----");
1205
1206         while (NULL != iter) {
1207                 engine_s* temp_engine;
1208
1209                 temp_engine = (engine_s*)g_malloc0(sizeof(engine_s));
1210
1211                 data = iter->data;
1212
1213                 temp_engine->engine_id = strdup(data->engine_uuid);
1214                 temp_engine->engine_name = strdup(data->engine_name);
1215                 temp_engine->ug_name = strdup(data->setting_ug_path);
1216
1217                 *engine_list = g_list_append(*engine_list, temp_engine);
1218
1219                 iter = g_list_next(iter);
1220
1221                 SLOG(LOG_DEBUG, get_tag(), " -- engine id(%s) engine name(%s) ug name(%s)",
1222                         temp_engine->engine_id, temp_engine->engine_name, temp_engine->ug_name);
1223
1224         }
1225
1226         SLOG(LOG_DEBUG, get_tag(), "--------------------------------------");
1227
1228         return 0;
1229 }
1230
1231 int ttsd_engine_setting_get_engine(char** engine_id)
1232 {
1233         if (false == g_agent_init) {
1234                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1235                 return TTSD_ERROR_OPERATION_FAILED;
1236         }
1237
1238         if (false == g_cur_engine.is_loaded) {
1239                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1240                 return TTSD_ERROR_ENGINE_NOT_FOUND;
1241         }
1242
1243         *engine_id = strdup(g_cur_engine.engine_uuid);
1244
1245         return 0;
1246 }
1247
1248 int ttsd_engine_setting_set_engine(const char* engine_id)
1249 {
1250         if (false == g_agent_init) {
1251                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1252                 return TTSD_ERROR_OPERATION_FAILED;
1253         }
1254
1255         /* compare current engine and new engine.*/
1256         if (0 == strncmp(g_cur_engine.engine_uuid, engine_id, strlen(engine_id))) {
1257                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] new engine(%s) is the same as current engine(%s)", engine_id, g_cur_engine.engine_uuid);
1258                 return 0;
1259         }
1260
1261         char* tmp_uuid = NULL;
1262         tmp_uuid = strdup(g_cur_engine.engine_uuid);
1263
1264         /* unload engine */
1265         if (0 != ttsd_engine_agent_unload_current_engine()) {
1266                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent Error] fail to unload current engine");
1267         } else {
1268                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] unload current engine");
1269         }
1270
1271         /* change current engine */
1272         if (0 != __internal_set_current_engine(engine_id)) {
1273                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail __internal_set_current_engine()");
1274
1275                 /* roll back to old current engine. */
1276                 __internal_set_current_engine(tmp_uuid);
1277                 ttsd_engine_agent_load_current_engine();
1278
1279                 if (tmp_uuid != NULL)
1280                         free(tmp_uuid);
1281
1282                 return TTSD_ERROR_OPERATION_FAILED;
1283         }
1284
1285         /* load engine */
1286         if (0 != ttsd_engine_agent_load_current_engine()) {
1287                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent Error] fail to load new engine");
1288
1289                 if( tmp_uuid != NULL )
1290                         free(tmp_uuid);
1291
1292                 return TTSD_ERROR_OPERATION_FAILED;
1293         } else {
1294                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] load new engine");
1295         }
1296
1297         /* save engine id to config */
1298         if (0 != ttsd_config_set_default_engine(engine_id)) {
1299                 SLOG(LOG_WARN, get_tag(), "[Engine Agent WARNING] Fail to save engine id to config");
1300         }
1301
1302         if (tmp_uuid != NULL)
1303                 free(tmp_uuid);
1304
1305         return 0;
1306 }
1307
1308 int ttsd_engine_setting_get_voice_list(char** engine_id, GList** voice_list)
1309 {
1310         if (false == g_agent_init) {
1311                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1312                 return TTSD_ERROR_OPERATION_FAILED;
1313         }
1314
1315         if (false == g_cur_engine.is_loaded) {
1316                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1317                 return TTSD_ERROR_OPERATION_FAILED;
1318         }
1319
1320         int ret = 0;
1321
1322         /* get language list from engine*/
1323         ret = ttsd_engine_get_voice_list(voice_list);
1324         if (0 != ret) {
1325                 SLOG(LOG_ERROR, get_tag(), "[Server Error] fail ttsd_engine_get_voice_list() ");
1326                 return ret;
1327         }
1328
1329         *engine_id = strdup(g_cur_engine.engine_uuid);
1330
1331         return 0;
1332 }
1333
1334 int ttsd_engine_setting_get_default_voice(char** language, ttsp_voice_type_e* vctype)
1335 {
1336         if (false == g_agent_init) {
1337                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1338                 return TTSD_ERROR_OPERATION_FAILED;
1339         }
1340
1341         if (false == g_cur_engine.is_loaded) {
1342                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1343                 return TTSD_ERROR_OPERATION_FAILED;
1344         }
1345
1346         /* get current language from engine*/
1347         int ret = 0;
1348         char* temp_lang;
1349         ttsp_voice_type_e temp_int;
1350
1351         ret = ttsd_engine_get_default_voice(&temp_lang, &temp_int);
1352         if (0 != ret) {
1353                 SLOG(LOG_ERROR, get_tag(), "[Server Error] fail ttsd_engine_get_default_voice()");
1354                 return ret;
1355         }
1356
1357         if (NULL != temp_lang) {
1358                 *language = strdup(temp_lang);
1359                 *vctype = temp_int;
1360                 free(temp_lang);
1361         } else {
1362                 SLOG(LOG_ERROR, get_tag(), "[Server Error] fail to get default language");
1363                 return TTSD_ERROR_OPERATION_FAILED;
1364         }
1365
1366         return 0;
1367 }
1368
1369 int ttsd_engine_setting_set_default_voice(const char* language, ttsp_voice_type_e vctype)
1370 {
1371         if (false == g_agent_init) {
1372                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1373                 return TTSD_ERROR_OPERATION_FAILED;
1374         }
1375
1376         if (false == g_cur_engine.is_loaded) {
1377                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1378                 return TTSD_ERROR_OPERATION_FAILED;
1379         }
1380
1381         if (NULL == g_cur_engine.pefuncs->is_valid_voice) {
1382                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] The function of engine is NULL!!");
1383                 return TTSD_ERROR_OPERATION_FAILED;
1384         }
1385
1386         int ret = -1;
1387         if(false == g_cur_engine.pefuncs->is_valid_voice(language, vctype)) {
1388                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Voice is NOT valid !!");
1389                 return TTSD_ERROR_INVALID_VOICE;
1390         }
1391
1392         if (NULL != g_cur_engine.default_lang)
1393                 free(g_cur_engine.default_lang);
1394
1395         g_cur_engine.default_lang = strdup(language);
1396         g_cur_engine.default_vctype = vctype;
1397
1398         ret = ttsd_config_set_default_voice(language, (int)vctype);
1399         if (0 == ret) {
1400                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Set default voice : lang(%s), type(%d)",
1401                                 g_cur_engine.default_lang, g_cur_engine.default_vctype);
1402         } else {
1403                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to write default voice to config (%d)", ret);
1404         }
1405
1406         return 0;
1407 }
1408
1409 int ttsd_engine_setting_get_default_speed(ttsp_speed_e* speed)
1410 {
1411         if (false == g_agent_init) {
1412                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1413                 return TTSD_ERROR_OPERATION_FAILED;
1414         }
1415
1416         if (false == g_cur_engine.is_loaded) {
1417                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1418                 return TTSD_ERROR_OPERATION_FAILED;
1419         }
1420
1421         /* get current language */
1422         *speed = g_cur_engine.default_speed;
1423
1424         return 0;
1425 }
1426
1427 int ttsd_engine_setting_set_default_speed(const ttsp_speed_e speed)
1428 {
1429         if (false == g_agent_init) {
1430                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1431                 return TTSD_ERROR_OPERATION_FAILED;
1432         }
1433
1434         if (false == g_cur_engine.is_loaded) {
1435                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1436                 return TTSD_ERROR_OPERATION_FAILED;
1437         }
1438
1439         g_cur_engine.default_speed = speed;
1440
1441         if (0 != ttsd_config_set_default_speed(speed)) {
1442                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to set default speed to config");
1443         }
1444
1445         return 0;
1446 }
1447
1448 bool __engine_setting_cb(const char* key, const char* value, void* user_data)
1449 {
1450         GList** engine_setting_list = (GList**)user_data;
1451
1452         if (NULL == engine_setting_list || NULL == key || NULL == value) {
1453                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Input parameter is NULL in engine setting callback!!!!");
1454                 return false;
1455         }
1456
1457         engine_setting_s* temp = g_malloc0(sizeof(engine_setting_s));
1458         temp->key = g_strdup(key);
1459         temp->value = g_strdup(value);
1460
1461         *engine_setting_list = g_list_append(*engine_setting_list, temp);
1462
1463         return true;
1464 }
1465
1466
1467 int ttsd_engine_setting_get_engine_setting_info(char** engine_id, GList** setting_list)
1468 {
1469         if (false == g_agent_init) {
1470                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1471                 return TTSD_ERROR_OPERATION_FAILED;
1472         }
1473
1474         if (false == g_cur_engine.is_loaded) {
1475                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1476                 return TTSD_ERROR_OPERATION_FAILED;
1477         }
1478
1479         if (NULL == setting_list) {
1480                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Input parameter is NULL");
1481                 return TTSD_ERROR_INVALID_PARAMETER;
1482         }
1483
1484         if (NULL == g_cur_engine.pefuncs->foreach_engine_setting) {
1485                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] foreach_engine_setting() of engine is NULL!!");
1486                 return TTSD_ERROR_OPERATION_FAILED;
1487         }
1488
1489         /* get setting info and move setting info to input parameter */
1490         int result = 0;
1491
1492         result = g_cur_engine.pefuncs->foreach_engine_setting(__engine_setting_cb, setting_list);
1493
1494         if (0 == result && 0 < g_list_length(*setting_list)) {
1495                 *engine_id = strdup(g_cur_engine.engine_uuid);
1496         } else {
1497                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to get setting info : result(%d)\n", result);
1498                 result = TTSD_ERROR_OPERATION_FAILED;
1499         }
1500
1501         return result;
1502 }
1503
1504 int ttsd_engine_setting_set_engine_setting(const char* key, const char* value)
1505 {
1506         if (false == g_agent_init) {
1507                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1508                 return TTSD_ERROR_OPERATION_FAILED;
1509         }
1510
1511         if (false == g_cur_engine.is_loaded) {
1512                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1513                 return TTSD_ERROR_OPERATION_FAILED;
1514         }
1515
1516         if (NULL == g_cur_engine.pefuncs->set_engine_setting) {
1517                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] set_setting_info of engine is NULL!!");
1518                 return TTSD_ERROR_OPERATION_FAILED;
1519         }
1520
1521         /* get setting info and move setting info to input parameter */
1522         int ret = 0;
1523         ret = g_cur_engine.pefuncs->set_engine_setting(key, value);
1524
1525         if (0 != ret) {
1526                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to set engine setting : result(%d)\n", ret);
1527                 return TTSD_ERROR_OPERATION_FAILED;
1528         }
1529
1530         return 0;
1531 }
1532
1533 void __free_voice_list(GList* voice_list)
1534 {
1535         GList *iter = NULL;
1536         voice_s* data = NULL;
1537
1538         /* if list have item */
1539         if (g_list_length(voice_list) > 0) {
1540                 /* Get a first item */
1541                 iter = g_list_first(voice_list);
1542
1543                 while (NULL != iter) {
1544                         data = iter->data;
1545
1546                         if (NULL != data) {
1547                                 if (NULL != data->language)
1548                                         g_free(data->language);
1549
1550                                 g_free(data);
1551                         }
1552
1553                         voice_list = g_list_remove_link(voice_list, iter);
1554
1555                         iter = g_list_first(voice_list);
1556                 }
1557         }
1558 }
1559
1560 /*
1561 * TTS Engine Callback Functions                                                                                 `                                 *
1562 */
1563 bool __result_cb(ttsp_result_event_e event, const void* data, unsigned int data_size, void *user_data)
1564 {
1565         g_result_cb(event, data, data_size, user_data);
1566
1567         return true;
1568 }
1569
1570 /* function for debugging */
1571 int ttsd_print_enginelist()
1572 {
1573         GList *iter = NULL;
1574         ttsengine_info_s *data = NULL;
1575
1576         if (g_list_length(g_engine_list) > 0) {
1577                 iter = g_list_first(g_engine_list);
1578
1579                 SLOG(LOG_DEBUG, get_tag(), "----- engine list -----");
1580
1581                 int i = 1;
1582                 while (NULL != iter) {
1583                         data = iter->data;
1584
1585                         SLOG(LOG_DEBUG, get_tag(), "[%dth]\n", i);
1586                         SLOG(LOG_DEBUG, get_tag(), "engine uuid : %s\n", data->engine_uuid);
1587                         SLOG(LOG_DEBUG, get_tag(), "engine name : %s\n", data->engine_name);
1588                         SLOG(LOG_DEBUG, get_tag(), "engine path : %s\n", data->engine_path);
1589                         SLOG(LOG_DEBUG, get_tag(), "setting ug path : %s\n", data->setting_ug_path);
1590
1591                         iter = g_list_next(iter);
1592                         i++;
1593                 }
1594                 SLOG(LOG_DEBUG, get_tag(), "-----------------------");
1595                 SLOG(LOG_DEBUG, get_tag(), "  ");
1596         } else {
1597                 SLOG(LOG_DEBUG, get_tag(), "----- engine list -----");
1598                 SLOG(LOG_DEBUG, get_tag(), "No Engine in directory");
1599                 SLOG(LOG_DEBUG, get_tag(), "-----------------------");
1600         }
1601
1602         return 0;
1603 }
1604
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