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");
 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");
 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_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");
 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", 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                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to load engine - %s : result(%d)", g_cur_engine.engine_path, ret);
 607                 return TTSD_ERROR_OPERATION_FAILED;
 608         }
 609
 610         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] engine info : version(%d), size(%d)",g_cur_engine.pefuncs->version, g_cur_engine.pefuncs->size );
 611
 612         /* engine error check */
 613         if (g_cur_engine.pefuncs->size != sizeof(ttspe_funcs_s)) {
 614                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] ttsd_engine_agent_load_current_engine : current engine is not valid");
 615                 return TTSD_ERROR_OPERATION_FAILED;
 616         }
 617
 618         /* initalize engine */
 619         if (NULL == g_cur_engine.pefuncs->initialize) {
 620                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] init function of engine is NULL!!");
 621                 return TTSD_ERROR_OPERATION_FAILED;
 622         }
 623
 624         ret = g_cur_engine.pefuncs->initialize(__result_cb);
 625         if (0 != ret) {
 626                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to initialize current engine : result(%d)", ret);
 627                 return TTSD_ERROR_OPERATION_FAILED;
 628         }
 629
 630         /* select default voice */
 631         bool set_voice = false;
 632         if (NULL != g_cur_engine.default_lang) {
 633                 if (NULL == g_cur_engine.pefuncs->is_valid_voice) {
 634                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] is_valid_voice() of engine is NULL!!");
 635                         return TTSD_ERROR_OPERATION_FAILED;
 636                 }
 637
 638                 if (true == g_cur_engine.pefuncs->is_valid_voice(g_cur_engine.default_lang, g_cur_engine.default_vctype)) {
 639                         set_voice = true;
 640                         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Set origin default voice to current engine : lang(%s), type(%d)",
 641                                 g_cur_engine.default_lang,  g_cur_engine.default_vctype);
 642                 } else {
 643                         SLOG(LOG_WARN, get_tag(), "[Engine Agent WARNING] Fail set origin default voice : lang(%s), type(%d)",
 644                                 g_cur_engine.default_lang, g_cur_engine.default_vctype);
 645                 }
 646         }
 647
 648         if (false == set_voice) {
 649                 if (NULL == g_cur_engine.pefuncs->foreach_voices) {
 650                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] get_voice_list of engine is NULL!!");
 651                         return TTSD_ERROR_OPERATION_FAILED;
 652                 }
 653
 654                 /* get language list */
 655                 int ret;
 656                 GList* voice_list = NULL;
 657
 658                 ret = g_cur_engine.pefuncs->foreach_voices(__supported_voice_cb, &voice_list);
 659
 660                 if (0 == ret && 0 < g_list_length(voice_list)) {
 661                         GList *iter = NULL;
 662                         voice_s* voice = NULL;
 663
 664                         iter = g_list_first(voice_list);
 665
 666                         /* check english */
 667                         while (NULL != iter) {
 668                                 voice = iter->data;
 669
 670                                 if (NULL != voice) {
 671                                         if (0 == strcmp("en_US", voice->language))
 672                                                 break;
 673                                 }
 674
 675                                 iter = g_list_next(iter);
 676                         }
 677                         if (NULL == voice) {
 678                                 SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail to find voice in list");
 679                                 return TTSD_ERROR_OPERATION_FAILED;
 680                         }
 681
 682                         /* Set selected language and type */
 683                         if (true != g_cur_engine.pefuncs->is_valid_voice(voice->language, voice->type)) {
 684                                 SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail voice is NOT valid");
 685                                 return TTSD_ERROR_OPERATION_FAILED;
 686                         }
 687
 688                         ttsd_config_set_default_voice(voice->language, (int)voice->type);
 689
 690                         g_cur_engine.default_lang = g_strdup(voice->language);
 691                         g_cur_engine.default_vctype = voice->type;
 692
 693                         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Select default voice : lang(%s), type(%d)",
 694                                 voice->language,  voice->type);
 695
 696                         __free_voice_list(voice_list);
 697                 } else {
 698                         SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail to get language list : result(%d)", ret);
 699                         return TTSD_ERROR_OPERATION_FAILED;
 700                 }
 701         }
 702
 703         g_cur_engine.is_loaded = true;
 704
 705         return 0;
 706 }
 707
 708 int ttsd_engine_agent_unload_current_engine()
 709 {
 710         if (false == g_agent_init) {
 711                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 712                 return TTSD_ERROR_OPERATION_FAILED;
 713         }
 714
 715         if (false == g_cur_engine.is_set) {
 716                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] No Current Engine ");
 717                 return TTSD_ERROR_OPERATION_FAILED;
 718         }
 719
 720         if (false == g_cur_engine.is_loaded) {
 721                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] Engine has already been unloaded " );
 722                 return 0;
 723         }
 724
 725         /* shutdown engine */
 726         if (NULL == g_cur_engine.pefuncs->deinitialize) {
 727                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] The deinitialize() of engine is NULL!!");
 728         } else {
 729                 int ret = 0;
 730                 ret = g_cur_engine.pefuncs->deinitialize();
 731                 if (0 != ret) {
 732                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent] Fail deinitialize() : result(%d)", ret);
 733                 }
 734         }
 735
 736         /* unload engine */
 737         g_cur_engine.ttsp_unload_engine();
 738
 739         dlclose(g_cur_engine.handle);
 740
 741         /* reset current engine data */
 742         g_cur_engine.handle = NULL;
 743         g_cur_engine.is_loaded = false;
 744
 745         return 0;
 746 }
 747
 748 bool ttsd_engine_agent_need_network()
 749 {
 750         if (false == g_agent_init) {
 751                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 752                 return TTSD_ERROR_OPERATION_FAILED;
 753         }
 754
 755         if (false == g_cur_engine.is_loaded) {
 756                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
 757                 return TTSD_ERROR_OPERATION_FAILED;
 758         }
 759
 760         return g_cur_engine.need_network;
 761 }
 762
 763 bool ttsd_engine_select_valid_voice(const char* lang, int type, char** out_lang, ttsp_voice_type_e* out_type)
 764 {
 765         if (NULL == lang || NULL == out_lang || NULL == out_type) {
 766                 return false;
 767         }
 768
 769         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] Select voice : input lang(%s) , input type(%d), default lang(%s), default type(%d)",
 770                 lang, type, g_cur_engine.default_lang, g_cur_engine.default_vctype);
 771
 772
 773         /* case 1 : Both are default */
 774         if (0 == strncmp(lang, "default", strlen("default")) && 0 == type) {
 775                 *out_lang = strdup(g_cur_engine.default_lang);
 776                 *out_type = g_cur_engine.default_vctype;
 777                 return true;
 778         }
 779
 780         /* Get voice list */
 781         if (NULL == g_cur_engine.pefuncs->foreach_voices) {
 782                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] foreach_voices of engine is NULL!!");
 783                 return TTSD_ERROR_OPERATION_FAILED;
 784         }
 785
 786         GList* voice_list = NULL;
 787         int ret = 0;
 788
 789         ret = g_cur_engine.pefuncs->foreach_voices(__supported_voice_cb, &voice_list);
 790         if (0 != ret || 0 >= g_list_length(voice_list)) {
 791                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to get voice list : result(%d)", ret);
 792                 return false;
 793         }
 794
 795         bool result;
 796         result = false;
 797
 798         GList *iter = NULL;
 799         voice_s* voice;
 800
 801         /* lang and type are not default type */
 802         if (0 != strncmp(lang, "default", strlen("default")) && 0 != type) {
 803                 iter = g_list_first(voice_list);
 804
 805                 while (NULL != iter) {
 806                         /* Get handle data from list */
 807                         voice = iter->data;
 808
 809                         if (0 == strncmp(voice->language, lang, strlen(lang)) &&  voice->type == type) {
 810                                 *out_lang = strdup(voice->language);
 811                                 *out_type = voice->type;
 812                                 result = true;
 813                                 break;
 814                         }
 815
 816                         iter = g_list_next(iter);
 817                 }
 818
 819         } else if (0 != strncmp(lang, "default", strlen("default")) && 0 == type) {
 820                 /* Only type is default */
 821                 if (0 == strncmp(lang, g_cur_engine.default_lang, strlen(g_cur_engine.default_lang))) {
 822                         *out_lang = strdup(g_cur_engine.default_lang);
 823                         *out_type = g_cur_engine.default_vctype;
 824                         result = true;
 825                 } else {
 826                         voice_s* voice_selected = NULL;
 827                         iter = g_list_first(voice_list);
 828                         while (NULL != iter) {
 829                                 /* Get handle data from list */
 830                                 voice = iter->data;
 831
 832                                 if (0 == strncmp(voice->language, lang, strlen(lang))) {
 833                                         voice_selected = voice;
 834                                         if (voice->type == g_cur_engine.default_vctype) {
 835                                                 voice_selected = voice;
 836                                                 break;
 837                                         }
 838                                 }
 839                                 iter = g_list_next(iter);
 840                         }
 841
 842                         if (NULL != voice_selected) {
 843                                 *out_lang = strdup(voice_selected->language);
 844                                 *out_type = voice_selected->type;
 845                                 result = true;
 846                         }
 847                 }
 848         } else if (0 == strncmp(lang, "default", strlen("default")) && 0 != type) {
 849                 /* Only lang is default */
 850                 if (type == g_cur_engine.default_vctype) {
 851                         *out_lang = strdup(g_cur_engine.default_lang);
 852                         *out_type = g_cur_engine.default_vctype;
 853                         result = true;
 854                 } else {
 855                         voice_s* voice_selected = NULL;
 856                         iter = g_list_first(voice_list);
 857                         while (NULL != iter) {
 858                                 /* Get handle data from list */
 859                                 voice = iter->data;
 860
 861                                 if (0 == strncmp(voice->language, g_cur_engine.default_lang, strlen(g_cur_engine.default_lang)) ) {
 862                                         voice_selected = voice;
 863                                         if (voice->type == type) {
 864                                                 voice_selected = voice;
 865                                                 break;
 866                                         }
 867                                 }
 868                                 iter = g_list_next(iter);
 869                         }
 870
 871                         if (NULL != voice_selected) {
 872                                 *out_lang = strdup(voice->language);
 873                                 *out_type = voice_selected->type;
 874                                 result = true;
 875                         }
 876                 }
 877         }
 878
 879         if (true == result) {
 880                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] Selected voice : lang(%s), type(%d)", *out_lang, *out_type);
 881         }
 882
 883         __free_voice_list(voice_list);
 884
 885         return result;
 886 }
 887
 888 bool ttsd_engine_agent_is_same_engine(const char* engine_id)
 889 {
 890         if (false == g_agent_init) {
 891                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 892                 return false;
 893         }
 894
 895         if (false == g_cur_engine.is_loaded) {
 896                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
 897                 return false;
 898         }
 899
 900         /* compare current engine and engine id.*/
 901         if (0 == strncmp(g_cur_engine.engine_uuid, engine_id, strlen(engine_id))) {
 902                 return true;
 903         }
 904
 905         return false;
 906 }
 907
 908 int ttsd_engine_agent_set_default_voice(const char* language, ttsp_voice_type_e vctype)
 909 {
 910         if (false == g_agent_init) {
 911                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 912                 return TTSD_ERROR_OPERATION_FAILED;
 913         }
 914
 915         if (false == g_cur_engine.is_loaded) {
 916                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
 917                 return TTSD_ERROR_OPERATION_FAILED;
 918         }
 919
 920         if (NULL == g_cur_engine.pefuncs->is_valid_voice) {
 921                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] The function of engine is NULL!!");
 922                 return TTSD_ERROR_OPERATION_FAILED;
 923         }
 924
 925         int ret = -1;
 926         if(false == g_cur_engine.pefuncs->is_valid_voice(language, vctype)) {
 927                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Voice is NOT valid !!");
 928                 return TTSD_ERROR_INVALID_VOICE;
 929         }
 930
 931         if (NULL != g_cur_engine.default_lang)
 932                 free(g_cur_engine.default_lang);
 933
 934         g_cur_engine.default_lang = strdup(language);
 935         g_cur_engine.default_vctype = vctype;
 936
 937         ret = ttsd_config_set_default_voice(language, (int)vctype);
 938         if (0 == ret) {
 939                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Set default voice : lang(%s), type(%d)",
 940                         g_cur_engine.default_lang, g_cur_engine.default_vctype);
 941         } else {
 942                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to write default voice to config (%d)", ret);
 943                 return TTSD_ERROR_OPERATION_FAILED;
 944         }
 945
 946         return 0;
 947 }
 948
 949 /******************************************************************************************
 950 * TTS Engine Interfaces for client
 951 *******************************************************************************************/
 952
 953 int ttsd_engine_start_synthesis(const char* lang, const ttsp_voice_type_e vctype, const char* text, const int speed, void* user_param)
 954 {
 955         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] start ttsd_engine_start_synthesis()");
 956
 957         if (false == g_agent_init) {
 958                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 959                 return TTSD_ERROR_OPERATION_FAILED;
 960         }
 961
 962         if (false == g_cur_engine.is_loaded) {
 963                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
 964                 return TTSD_ERROR_OPERATION_FAILED;
 965         }
 966
 967         /* select voice for default */
 968         char* temp_lang = NULL;
 969         ttsp_voice_type_e temp_type;
 970         if (true != ttsd_engine_select_valid_voice(lang, vctype, &temp_lang, &temp_type)) {
 971                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Fail to select default voice");
 972                 return TTSD_ERROR_INVALID_VOICE;
 973         } else {
 974                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] Start synthesis : language(%s), type(%d), speed(%d), text(%s)",
 975                         temp_lang, temp_type, speed, text);
 976         }
 977
 978         if (NULL == g_cur_engine.pefuncs->start_synth) {
 979                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] start_synth() of engine is NULL!!");
 980                 return TTSD_ERROR_OPERATION_FAILED;
 981         }
 982
 983         ttsp_speed_e temp_speed;
 984
 985         if (0 == speed) {
 986                 temp_speed = g_cur_engine.default_speed;
 987         } else {
 988                 temp_speed = speed;
 989         }
 990
 991         /* synthesize text */
 992         int ret = 0;
 993         ret = g_cur_engine.pefuncs->start_synth(temp_lang, temp_type, text, temp_speed, user_param);
 994         if (0 != ret) {
 995                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] ***************************************", ret);
 996                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] * synthesize error : result(%6d) *", ret);
 997                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] ***************************************", ret);
 998                 return TTSD_ERROR_OPERATION_FAILED;
 999         }
1000
1001         if (NULL == temp_lang)
1002                 free(temp_lang);
1003
1004         return 0;
1005 }
1006
1007
1008 int ttsd_engine_cancel_synthesis()
1009 {
1010         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] start ttsd_engine_cancel_synthesis()");
1011
1012         if (false == g_agent_init) {
1013                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1014                 return TTSD_ERROR_OPERATION_FAILED;
1015         }
1016
1017         if (false == g_cur_engine.is_loaded) {
1018                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1019                 return TTSD_ERROR_OPERATION_FAILED;
1020         }
1021
1022         if (NULL == g_cur_engine.pefuncs->cancel_synth) {
1023                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] cancel_synth() of engine is NULL!!");
1024                 return TTSD_ERROR_OPERATION_FAILED;
1025         }
1026
1027         /* stop synthesis */
1028         int ret = 0;
1029         ret = g_cur_engine.pefuncs->cancel_synth();
1030         if (0 != ret) {
1031                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail cancel synthesis : result(%d)", ret);
1032                 return TTSD_ERROR_OPERATION_FAILED;
1033         }
1034
1035         return 0;
1036 }
1037
1038 int ttsd_engine_get_audio_format( ttsp_audio_type_e* type, int* rate, int* channels)
1039 {
1040         if (false == g_agent_init) {
1041                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1042                 return TTSD_ERROR_OPERATION_FAILED;
1043         }
1044
1045         if (false == g_cur_engine.is_loaded) {
1046                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1047                 return TTSD_ERROR_OPERATION_FAILED;
1048         }
1049
1050         if (NULL == g_cur_engine.pefuncs->get_audio_format) {
1051                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] get_audio_format() of engine is NULL!!");
1052                 return TTSD_ERROR_OPERATION_FAILED;
1053         }
1054
1055         int ret = 0;
1056         ret = g_cur_engine.pefuncs->get_audio_format(type, rate, channels);
1057         if (0 != ret) {
1058                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to get audio format : result(%d)", ret);
1059                 return TTSD_ERROR_OPERATION_FAILED;
1060         } else
1061                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] get audio format : type(%d), rate(%d), channel(%d)", *type, *rate, *channels);
1062
1063         return 0;
1064 }
1065
1066 bool __supported_voice_cb(const char* language, ttsp_voice_type_e type, void* user_data)
1067 {
1068         GList** voice_list = (GList**)user_data;
1069
1070         if (NULL == language || NULL == voice_list) {
1071                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Input parameter is NULL in voice list callback!!!!");
1072                 return false;
1073         }
1074
1075         SLOG(LOG_DEBUG, get_tag(), "-- Language(%s), Type(%d)", language, type);
1076
1077         voice_s* voice = g_malloc0(sizeof(voice_s));
1078         voice->language = strdup(language);
1079         voice->type = type;
1080
1081         *voice_list = g_list_append(*voice_list, voice);
1082
1083         return true;
1084 }
1085
1086 int ttsd_engine_get_voice_list(GList** voice_list)
1087 {
1088         if (false == g_agent_init) {
1089                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1090                 return TTSD_ERROR_OPERATION_FAILED;
1091         }
1092
1093         if (false == g_cur_engine.is_loaded) {
1094                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1095                 return TTSD_ERROR_OPERATION_FAILED;
1096         }
1097
1098         if (NULL == g_cur_engine.pefuncs->foreach_voices) {
1099                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] The function of engine is NULL!!");
1100                 return TTSD_ERROR_OPERATION_FAILED;
1101         }
1102
1103         int ret = 0;
1104         ret = g_cur_engine.pefuncs->foreach_voices(__supported_voice_cb, (void*)voice_list);
1105         if (0 != ret) {
1106                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Fail to get voice list : result(%d)", ret);
1107                 return TTSD_ERROR_OPERATION_FAILED;
1108         }
1109
1110         return 0;
1111 }
1112
1113 int ttsd_engine_get_default_voice( char** lang, ttsp_voice_type_e* vctype )
1114 {
1115         if (false == g_agent_init) {
1116                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1117                 return TTSD_ERROR_OPERATION_FAILED;
1118         }
1119
1120         if (false == g_cur_engine.is_loaded) {
1121                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1122                 return TTSD_ERROR_OPERATION_FAILED;
1123         }
1124
1125         if (NULL == lang || NULL == vctype) {
1126                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] BAD Parameter");
1127                 return TTSD_ERROR_INVALID_PARAMETER;
1128         }
1129
1130         if (NULL != g_cur_engine.default_lang) {
1131                 *lang = g_strdup(g_cur_engine.default_lang);
1132                 *vctype = g_cur_engine.default_vctype;
1133
1134                 SLOG(LOG_DEBUG, get_tag(), "[Engine] Get default voice : language(%s), type(%d)", *lang, *vctype);
1135         } else {
1136                 if (NULL == g_cur_engine.pefuncs->foreach_voices) {
1137                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] get_voice_list of engine is NULL!!");
1138                         return TTSD_ERROR_OPERATION_FAILED;
1139                 }
1140
1141                 /* get language list */
1142                 int ret;
1143                 GList* voice_list = NULL;
1144
1145                 ret = g_cur_engine.pefuncs->foreach_voices(__supported_voice_cb, &voice_list);
1146
1147                 if (0 == ret && 0 < g_list_length(voice_list)) {
1148                         GList *iter = NULL;
1149                         voice_s* voice;
1150
1151                         iter = g_list_first(voice_list);
1152
1153                         if (NULL != iter) {
1154                                 voice = iter->data;
1155
1156                                 if (true != g_cur_engine.pefuncs->is_valid_voice(voice->language, voice->type)) {
1157                                         SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail voice is NOT valid ");
1158                                         return TTSD_ERROR_OPERATION_FAILED;
1159                                 }
1160
1161                                 ttsd_config_set_default_voice(voice->language, (int)voice->type);
1162
1163                                 if (NULL != g_cur_engine.default_lang)
1164                                         g_free(g_cur_engine.default_lang);
1165
1166                                 g_cur_engine.default_lang = g_strdup(voice->language);
1167                                 g_cur_engine.default_vctype = voice->type;
1168
1169                                 *lang = g_strdup(g_cur_engine.default_lang);
1170                                 *vctype = g_cur_engine.default_vctype = voice->type;
1171
1172                                 SLOG(LOG_DEBUG, get_tag(), "[Engine] Get default voice (New selected) : language(%s), type(%d)", *lang, *vctype);
1173                         } else {
1174                                 SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail to get language list : result(%d)", ret);
1175                                 return TTSD_ERROR_OPERATION_FAILED;
1176                         }
1177
1178                         __free_voice_list(voice_list);
1179                 } else {
1180                         SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail to get language list : result(%d)", ret);
1181                         return TTSD_ERROR_OPERATION_FAILED;
1182                 }
1183         }
1184
1185         return 0;
1186 }
1187
1188 /*
1189 * TTS Engine Interfaces for setting
1190 */
1191 int ttsd_engine_setting_get_engine_list(GList** engine_list)
1192 {
1193         if (false == g_agent_init) {
1194                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1195                 return TTSD_ERROR_OPERATION_FAILED;
1196         }
1197
1198         if (NULL == engine_list) {
1199                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Input parameter is NULL" );
1200                 return TTSD_ERROR_INVALID_PARAMETER;
1201         }
1202
1203         /* update engine list */
1204         if (0 != __internal_update_engine_list()) {
1205                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail __internal_update_engine_list()");
1206                 return TTSD_ERROR_OPERATION_FAILED;
1207         }
1208
1209         GList *iter = NULL;
1210         ttsengine_info_s *data = NULL;
1211
1212         iter = g_list_first(g_engine_list);
1213
1214         SLOG(LOG_DEBUG, get_tag(), "----- [Engine Agent] engine list -----");
1215
1216         while (NULL != iter) {
1217                 engine_s* temp_engine;
1218
1219                 temp_engine = (engine_s*)g_malloc0(sizeof(engine_s));
1220
1221                 data = iter->data;
1222
1223                 temp_engine->engine_id = strdup(data->engine_uuid);
1224                 temp_engine->engine_name = strdup(data->engine_name);
1225                 temp_engine->ug_name = strdup(data->setting_ug_path);
1226
1227                 *engine_list = g_list_append(*engine_list, temp_engine);
1228
1229                 iter = g_list_next(iter);
1230
1231                 SLOG(LOG_DEBUG, get_tag(), " -- engine id(%s) engine name(%s) ug name(%s)",
1232                         temp_engine->engine_id, temp_engine->engine_name, temp_engine->ug_name);
1233
1234         }
1235
1236         SLOG(LOG_DEBUG, get_tag(), "--------------------------------------");
1237
1238         return 0;
1239 }
1240
1241 int ttsd_engine_setting_get_engine(char** engine_id)
1242 {
1243         if (false == g_agent_init) {
1244                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1245                 return TTSD_ERROR_OPERATION_FAILED;
1246         }
1247
1248         if (false == g_cur_engine.is_loaded) {
1249                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1250                 return TTSD_ERROR_ENGINE_NOT_FOUND;
1251         }
1252
1253         *engine_id = strdup(g_cur_engine.engine_uuid);
1254
1255         return 0;
1256 }
1257
1258 int ttsd_engine_setting_set_engine(const char* engine_id)
1259 {
1260         if (false == g_agent_init) {
1261                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1262                 return TTSD_ERROR_OPERATION_FAILED;
1263         }
1264
1265         /* compare current engine and new engine.*/
1266         if (0 == strncmp(g_cur_engine.engine_uuid, engine_id, strlen(engine_id))) {
1267                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] new engine(%s) is the same as current engine(%s)", engine_id, g_cur_engine.engine_uuid);
1268                 return 0;
1269         }
1270
1271         char* tmp_uuid = NULL;
1272         tmp_uuid = strdup(g_cur_engine.engine_uuid);
1273
1274         /* unload engine */
1275         if (0 != ttsd_engine_agent_unload_current_engine()) {
1276                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent Error] fail to unload current engine");
1277         } else {
1278                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] unload current engine");
1279         }
1280
1281         /* change current engine */
1282         if (0 != __internal_set_current_engine(engine_id)) {
1283                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail __internal_set_current_engine()");
1284
1285                 /* roll back to old current engine. */
1286                 __internal_set_current_engine(tmp_uuid);
1287                 ttsd_engine_agent_load_current_engine();
1288
1289                 if (tmp_uuid != NULL)
1290                         free(tmp_uuid);
1291
1292                 return TTSD_ERROR_OPERATION_FAILED;
1293         }
1294
1295         /* load engine */
1296         if (0 != ttsd_engine_agent_load_current_engine()) {
1297                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent Error] fail to load new engine");
1298
1299                 if( tmp_uuid != NULL )
1300                         free(tmp_uuid);
1301
1302                 return TTSD_ERROR_OPERATION_FAILED;
1303         } else {
1304                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] load new engine");
1305         }
1306
1307         /* save engine id to config */
1308         if (0 != ttsd_config_set_default_engine(engine_id)) {
1309                 SLOG(LOG_WARN, get_tag(), "[Engine Agent WARNING] Fail to save engine id to config");
1310         }
1311
1312         if (tmp_uuid != NULL)
1313                 free(tmp_uuid);
1314
1315         return 0;
1316 }
1317
1318 int ttsd_engine_setting_get_voice_list(char** engine_id, GList** voice_list)
1319 {
1320         if (false == g_agent_init) {
1321                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1322                 return TTSD_ERROR_OPERATION_FAILED;
1323         }
1324
1325         if (false == g_cur_engine.is_loaded) {
1326                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1327                 return TTSD_ERROR_OPERATION_FAILED;
1328         }
1329
1330         int ret = 0;
1331
1332         /* get language list from engine*/
1333         ret = ttsd_engine_get_voice_list(voice_list);
1334         if (0 != ret) {
1335                 SLOG(LOG_ERROR, get_tag(), "[Server Error] fail ttsd_engine_get_voice_list() ");
1336                 return ret;
1337         }
1338
1339         *engine_id = strdup(g_cur_engine.engine_uuid);
1340
1341         return 0;
1342 }
1343
1344 int ttsd_engine_setting_get_default_voice(char** language, ttsp_voice_type_e* vctype)
1345 {
1346         if (false == g_agent_init) {
1347                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1348                 return TTSD_ERROR_OPERATION_FAILED;
1349         }
1350
1351         if (false == g_cur_engine.is_loaded) {
1352                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1353                 return TTSD_ERROR_OPERATION_FAILED;
1354         }
1355
1356         /* get current language from engine*/
1357         int ret = 0;
1358         char* temp_lang;
1359         ttsp_voice_type_e temp_int;
1360
1361         ret = ttsd_engine_get_default_voice(&temp_lang, &temp_int);
1362         if (0 != ret) {
1363                 SLOG(LOG_ERROR, get_tag(), "[Server Error] fail ttsd_engine_get_default_voice()");
1364                 return ret;
1365         }
1366
1367         if (NULL != temp_lang) {
1368                 *language = strdup(temp_lang);
1369                 *vctype = temp_int;
1370                 free(temp_lang);
1371         } else {
1372                 SLOG(LOG_ERROR, get_tag(), "[Server Error] fail to get default language");
1373                 return TTSD_ERROR_OPERATION_FAILED;
1374         }
1375
1376         return 0;
1377 }
1378
1379 int ttsd_engine_setting_set_default_voice(const char* language, ttsp_voice_type_e vctype)
1380 {
1381         if (false == g_agent_init) {
1382                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1383                 return TTSD_ERROR_OPERATION_FAILED;
1384         }
1385
1386         if (false == g_cur_engine.is_loaded) {
1387                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1388                 return TTSD_ERROR_OPERATION_FAILED;
1389         }
1390
1391         if (NULL == g_cur_engine.pefuncs->is_valid_voice) {
1392                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] The function of engine is NULL!!");
1393                 return TTSD_ERROR_OPERATION_FAILED;
1394         }
1395
1396         int ret = -1;
1397         if(false == g_cur_engine.pefuncs->is_valid_voice(language, vctype)) {
1398                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Voice is NOT valid !!");
1399                 return TTSD_ERROR_INVALID_VOICE;
1400         }
1401
1402         if (NULL != g_cur_engine.default_lang)
1403                 free(g_cur_engine.default_lang);
1404
1405         g_cur_engine.default_lang = strdup(language);
1406         g_cur_engine.default_vctype = vctype;
1407
1408         ret = ttsd_config_set_default_voice(language, (int)vctype);
1409         if (0 == ret) {
1410                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Set default voice : lang(%s), type(%d)",
1411                                 g_cur_engine.default_lang, g_cur_engine.default_vctype);
1412         } else {
1413                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to write default voice to config (%d)", ret);
1414         }
1415
1416         return 0;
1417 }
1418
1419 int ttsd_engine_setting_get_default_speed(ttsp_speed_e* speed)
1420 {
1421         if (false == g_agent_init) {
1422                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1423                 return TTSD_ERROR_OPERATION_FAILED;
1424         }
1425
1426         if (false == g_cur_engine.is_loaded) {
1427                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1428                 return TTSD_ERROR_OPERATION_FAILED;
1429         }
1430
1431         /* get current language */
1432         *speed = g_cur_engine.default_speed;
1433
1434         return 0;
1435 }
1436
1437 int ttsd_engine_setting_set_default_speed(const ttsp_speed_e speed)
1438 {
1439         if (false == g_agent_init) {
1440                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1441                 return TTSD_ERROR_OPERATION_FAILED;
1442         }
1443
1444         if (false == g_cur_engine.is_loaded) {
1445                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1446                 return TTSD_ERROR_OPERATION_FAILED;
1447         }
1448
1449         g_cur_engine.default_speed = speed;
1450
1451         if (0 != ttsd_config_set_default_speed(speed)) {
1452                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to set default speed to config");
1453         }
1454
1455         return 0;
1456 }
1457
1458 bool __engine_setting_cb(const char* key, const char* value, void* user_data)
1459 {
1460         GList** engine_setting_list = (GList**)user_data;
1461
1462         if (NULL == engine_setting_list || NULL == key || NULL == value) {
1463                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Input parameter is NULL in engine setting callback!!!!");
1464                 return false;
1465         }
1466
1467         engine_setting_s* temp = g_malloc0(sizeof(engine_setting_s));
1468         temp->key = g_strdup(key);
1469         temp->value = g_strdup(value);
1470
1471         *engine_setting_list = g_list_append(*engine_setting_list, temp);
1472
1473         return true;
1474 }
1475
1476
1477 int ttsd_engine_setting_get_engine_setting_info(char** engine_id, GList** setting_list)
1478 {
1479         if (false == g_agent_init) {
1480                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1481                 return TTSD_ERROR_OPERATION_FAILED;
1482         }
1483
1484         if (false == g_cur_engine.is_loaded) {
1485                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1486                 return TTSD_ERROR_OPERATION_FAILED;
1487         }
1488
1489         if (NULL == setting_list) {
1490                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Input parameter is NULL");
1491                 return TTSD_ERROR_INVALID_PARAMETER;
1492         }
1493
1494         if (NULL == g_cur_engine.pefuncs->foreach_engine_setting) {
1495                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] foreach_engine_setting() of engine is NULL!!");
1496                 return TTSD_ERROR_OPERATION_FAILED;
1497         }
1498
1499         /* get setting info and move setting info to input parameter */
1500         int result = 0;
1501
1502         result = g_cur_engine.pefuncs->foreach_engine_setting(__engine_setting_cb, setting_list);
1503
1504         if (0 == result && 0 < g_list_length(*setting_list)) {
1505                 *engine_id = strdup(g_cur_engine.engine_uuid);
1506         } else {
1507                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to get setting info : result(%d)", result);
1508                 result = TTSD_ERROR_OPERATION_FAILED;
1509         }
1510
1511         return result;
1512 }
1513
1514 int ttsd_engine_setting_set_engine_setting(const char* key, const char* value)
1515 {
1516         if (false == g_agent_init) {
1517                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1518                 return TTSD_ERROR_OPERATION_FAILED;
1519         }
1520
1521         if (false == g_cur_engine.is_loaded) {
1522                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1523                 return TTSD_ERROR_OPERATION_FAILED;
1524         }
1525
1526         if (NULL == g_cur_engine.pefuncs->set_engine_setting) {
1527                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] set_setting_info of engine is NULL!!");
1528                 return TTSD_ERROR_OPERATION_FAILED;
1529         }
1530
1531         /* get setting info and move setting info to input parameter */
1532         int ret = 0;
1533         ret = g_cur_engine.pefuncs->set_engine_setting(key, value);
1534
1535         if (0 != ret) {
1536                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to set engine setting : result(%d)", ret);
1537                 return TTSD_ERROR_OPERATION_FAILED;
1538         }
1539
1540         return 0;
1541 }
1542
1543 void __free_voice_list(GList* voice_list)
1544 {
1545         GList *iter = NULL;
1546         voice_s* data = NULL;
1547
1548         /* if list have item */
1549         if (g_list_length(voice_list) > 0) {
1550                 /* Get a first item */
1551                 iter = g_list_first(voice_list);
1552
1553                 while (NULL != iter) {
1554                         data = iter->data;
1555
1556                         if (NULL != data) {
1557                                 if (NULL != data->language)
1558                                         g_free(data->language);
1559
1560                                 g_free(data);
1561                         }
1562
1563                         voice_list = g_list_remove_link(voice_list, iter);
1564
1565                         iter = g_list_first(voice_list);
1566                 }
1567         }
1568 }
1569
1570 /*
1571 * TTS Engine Callback Functions                                                                                 `                                 *
1572 */
1573 bool __result_cb(ttsp_result_event_e event, const void* data, unsigned int data_size, void *user_data)
1574 {
1575         g_result_cb(event, data, data_size, user_data);
1576
1577         return true;
1578 }
1579
1580 /* function for debugging */
1581 int ttsd_print_enginelist()
1582 {
1583         GList *iter = NULL;
1584         ttsengine_info_s *data = NULL;
1585
1586         if (g_list_length(g_engine_list) > 0) {
1587                 iter = g_list_first(g_engine_list);
1588
1589                 SLOG(LOG_DEBUG, get_tag(), "----- engine list -----");
1590
1591                 int i = 1;
1592                 while (NULL != iter) {
1593                         data = iter->data;
1594
1595                         SLOG(LOG_DEBUG, get_tag(), "[%dth]", i);
1596                         SLOG(LOG_DEBUG, get_tag(), "engine uuid : %s", data->engine_uuid);
1597                         SLOG(LOG_DEBUG, get_tag(), "engine name : %s", data->engine_name);
1598                         SLOG(LOG_DEBUG, get_tag(), "engine path : %s", data->engine_path);
1599                         SLOG(LOG_DEBUG, get_tag(), "setting ug path : %s", data->setting_ug_path);
1600
1601                         iter = g_list_next(iter);
1602                         i++;
1603                 }
1604                 SLOG(LOG_DEBUG, get_tag(), "-----------------------");
1605                 SLOG(LOG_DEBUG, get_tag(), "  ");
1606         } else {
1607                 SLOG(LOG_DEBUG, get_tag(), "----- engine list -----");
1608                 SLOG(LOG_DEBUG, get_tag(), "No Engine in directory");
1609                 SLOG(LOG_DEBUG, get_tag(), "-----------------------");
1610         }
1611
1612         return 0;
1613 }
1614
1615
1616
1617
1618
1619
1620