plugins/wakeup-manager/src/wakeup_engine_manager.cpp

   1 #include <multi_assistant_service.h>
   2
   3 #include "wakeup_engine_manager.h"
   4 #include "wakeup_manager_main.h"
   5
   6 #include <dlfcn.h>
   7 #include <algorithm>
   8 #include <pkgmgr-info.h>
   9 #include <deque>
  10
  11 namespace multiassistant
  12 {
  13 namespace wakeup
  14 {
  15
  16 /* Sound buf save for test */
  17 #if 0
  18 #define BUF_SAVE_MODE
  19 #endif
  20
  21 #ifdef BUF_SAVE_MODE
  22 static char g_temp_file_name[128] = {'\0', };
  23
  24 static FILE* g_pFile = NULL;
  25
  26 static int g_count = 1;
  27 #endif
  28
  29 /* Need to check whether this value needs to be configurable */
  30 static int g_speech_pcm_wait_count = 800;
  31
  32 /* Utility function for checking if an element exists in a container */
  33 template<class C, class T>
  34 static auto contains(const C& v, const T& x) -> decltype(end(v), true)
  35 {
  36         return end(v) != find(begin(v), end(v), x);
  37 }
  38
  39 CWakeupEngineManager::CWakeupEngineManager()
  40 {
  41 }
  42
  43 CWakeupEngineManager::~CWakeupEngineManager()
  44 {
  45         MWR_LOGI("Wakeup Engine Manager is now being destroyed");
  46 }
  47
  48 CWakeupEngineManager::CWakeupEngineManager(IEngineEventObserver *observer) : CWakeupEngineManager()
  49 {
  50         subscribe(observer);
  51 }
  52
  53 void CWakeupEngineManager::initialize()
  54 {
  55         DIR* dp = opendir(MA_WAKEUP_ENGINE_PATH);
  56         if (nullptr == dp) {
  57                 MWR_LOGD("Failed opening directory : %s", (const char*)MA_WAKEUP_ENGINE_PATH);
  58         } else {
  59                 struct dirent *dirp = nullptr;
  60                 char dirpath[_POSIX_PATH_MAX];
  61                 do {
  62                         dirp = readdir(dp);
  63
  64                         if (nullptr != dirp) {
  65                                 const string current_directory{"."};
  66                                 const string parent_directory{".."};
  67                                 if (0 == current_directory.compare(dirp->d_name) ||
  68                                         0 == parent_directory.compare(dirp->d_name))
  69                                         continue;
  70
  71                                 if (DT_DIR != dirp->d_type) /* If not a directory */
  72                                         continue;
  73
  74                                 int dirpath_len = strlen(MA_WAKEUP_ENGINE_PATH) + strlen(dirp->d_name) + 1;
  75                                 if (dirpath_len >= _POSIX_PATH_MAX) {
  76                                         MWR_LOGD("File path is too long : %s", dirp->d_name);
  77                                         closedir(dp);
  78                                         return;
  79                                 }
  80
  81                                 memset(dirpath, '\0', _POSIX_PATH_MAX);
  82                                 snprintf(dirpath, _POSIX_PATH_MAX, "%s/%s",
  83                                         (const char*)(MA_WAKEUP_ENGINE_PATH), dirp->d_name);
  84
  85                                 add_engine_directory(string{dirp->d_name}, dirpath);
  86                         }
  87                 } while (nullptr != dirp);
  88
  89                 closedir(dp);
  90         }
  91 }
  92
  93 void CWakeupEngineManager::deinitialize()
  94 {
  95         MWR_LOGI("[START]");
  96         if (mStreamingThread.joinable()) {
  97                 MWR_LOGD("mStreamingThread is joinable, trying join()");
  98                 mStopStreamingThread.store(true);
  99                 mStreamingThread.join();
 100         }
 101         mStopStreamingThread.store(false);
 102
 103         for (auto& info : mEngineInfo) {
 104                 try {
 105                         if (info.interface.set_wakeup_event_callback) {
 106                                 info.interface.set_wakeup_event_callback(nullptr, nullptr);
 107                         }
 108                         if (info.interface.set_speech_status_callback) {
 109                                 info.interface.set_speech_status_callback(nullptr, nullptr);
 110                         }
 111                         if (info.interface.set_error_callback) {
 112                                 info.interface.set_error_callback(nullptr, nullptr);
 113                         }
 114                         if (info.interface.set_audio_data_require_status_callback) {
 115                                 info.interface.set_audio_data_require_status_callback(nullptr, nullptr);
 116                         }
 117                         if (info.interface.set_wakeup_engine_command_callback) {
 118                                 info.interface.set_wakeup_engine_command_callback(nullptr, nullptr);
 119                         }
 120                         MWR_LOGI("Trying to deinitialize engine : %s", info.engine_name.c_str());
 121                         if (info.interface.deinitialize) {
 122                                 int ret = info.interface.deinitialize();
 123                                 MWR_LOGI("Deinitialization [%s] returned %d", info.engine_name.c_str(), ret);
 124                         }
 125                 } catch (const std::exception& e) {
 126                         MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 127                                 info.engine_name.c_str(), e.what());
 128                 }
 129                 if (info.engine_handle) {
 130                         int ret = dlclose(info.engine_handle);
 131                         MWR_LOGI("Closing [%s] returned %d, [%s]", info.engine_name.c_str(), ret,
 132                                 ((0 == ret) ? "" : dlerror()));
 133                         info.engine_handle = nullptr;
 134                 }
 135         }
 136         mSelectedEngine = nullptr;
 137         mEngineInfo.clear();
 138         MWR_LOGI("[END]");
 139 }
 140
 141 void CWakeupEngineManager::subscribe(IEngineEventObserver *observer)
 142 {
 143         mObservers.push_back(observer);
 144         MWR_LOGD("Added Observer : %p %zu", observer, mObservers.size());
 145 }
 146
 147 void CWakeupEngineManager::unsubscribe(IEngineEventObserver *observer)
 148 {
 149         auto iter = find(mObservers.begin(), mObservers.end(), observer);
 150         if (iter != mObservers.end()) {
 151                 mObservers.erase(iter);
 152         }
 153 }
 154
 155 bool CWakeupEngineManager::get_audio_data_required()
 156 {
 157         return mAudioDataRequired;
 158 }
 159
 160 void CWakeupEngineManager::set_selected_wakeup_info(mas_wakeup_event_info wakeup_info)
 161 {
 162         mSelectedEngine = nullptr;
 163
 164         const auto& iter = find_if(mEngineInfo.begin(), mEngineInfo.end(),
 165                 [wakeup_info](const EngineInfo& info) {
 166                         if (nullptr == wakeup_info.wakeup_engine)
 167                                 return false;
 168
 169                         return (0 == info.engine_name.compare(wakeup_info.wakeup_engine));
 170                 });
 171
 172         if (iter != mEngineInfo.end()) {
 173                 mSelectedEngine = &(*iter);
 174                 MWR_LOGD("Selected : %s", iter->engine_name.c_str());
 175         }
 176 }
 177
 178 bool CWakeupEngineManager::set_language(string language)
 179 {
 180         for (const auto& info : mEngineInfo) {
 181                 if (info.interface.set_language) {
 182                         try {
 183                                 info.interface.set_language(language.c_str());
 184                         } catch (const std::exception& e) {
 185                                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 186                                         info.engine_name.c_str(), e.what());
 187                         }
 188                 }
 189         }
 190         return true;
 191 }
 192
 193 bool CWakeupEngineManager::set_assistant_language(string appid, string language)
 194 {
 195         for (auto& info : mEngineInfo) {
 196                 const auto& iter = find_if(info.assistant_list.begin(), info.assistant_list.end(),
 197                         [appid](const string& assistant) {
 198                                 return (0 == assistant.compare(appid));
 199                         });
 200
 201                 /* If the appid is in the assistant list */
 202                 if (info.assistant_list.end() != iter) {
 203                         try {
 204                                 int ret = info.interface.set_language(language.c_str());
 205                                 MWR_LOGI("set_language returned %d : %s %s %s",
 206                                         ret, appid.c_str(), info.engine_name.c_str(), language.c_str());
 207                         } catch (const std::exception& e) {
 208                                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 209                                         info.engine_name.c_str(), e.what());
 210                         }
 211                 }
 212         }
 213         return true;
 214 }
 215
 216 void CWakeupEngineManager::set_assistant_activated(string appid, bool activated)
 217 {
 218         MWR_LOGI("[ENTER] : %s %d", appid.c_str(), activated);
 219         for (auto& info : mEngineInfo) {
 220                 const auto& iter = find_if(info.assistant_list.begin(), info.assistant_list.end(),
 221                         [appid](const string& assistant) {
 222                                 return (0 == assistant.compare(appid));
 223                         });
 224
 225                 /* If the appid is in the assistant list */
 226                 if (info.assistant_list.end() != iter) {
 227                         bool previously_activated = info.activated;
 228                         if (activated) {
 229                                 info.activated_assistants.insert(appid);
 230                         } else {
 231                                 info.activated_assistants.erase(appid);
 232                         }
 233                         info.activated = (info.activated_assistants.size() > 0);
 234                         if (previously_activated != info.activated) {
 235                                 if (info.activated) {
 236                                         try {
 237                                                 info.interface.activate();
 238                                         } catch (const std::exception& e) {
 239                                                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 240                                                         info.engine_name.c_str(), e.what());
 241                                         }
 242                                 } else {
 243                                         try {
 244                                                 info.interface.deactivate();
 245                                         } catch (const std::exception& e) {
 246                                                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 247                                                         info.engine_name.c_str(), e.what());
 248                                         }
 249                                 }
 250                                 /* Activated status changed, need to update audio_data_require_status too */
 251                                 on_audio_data_require_status(info.engine_name, info.audio_data_require_status);
 252                         }
 253                 }
 254         }
 255 }
 256
 257 void CWakeupEngineManager::set_wake_word_audio_require_flag(bool require)
 258 {
 259         MWR_LOGD("[ENTER]");
 260         mWakeWordAudioRequired = require;
 261         for (const auto& info : mEngineInfo) {
 262                 if (info.interface.set_wake_word_audio_require_flag) {
 263                         try {
 264                                 info.interface.set_wake_word_audio_require_flag(require);
 265                         } catch (const std::exception& e) {
 266                                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 267                                         info.engine_name.c_str(), e.what());
 268                         }
 269                 }
 270         }
 271 }
 272
 273 void CWakeupEngineManager::streaming_speech_data_thread_func()
 274 {
 275         MWR_LOGI("[ENTER]");
 276
 277         if (nullptr == mSelectedEngine) {
 278                 MWR_LOGE("No Engine Selected");
 279                 return;
 280         }
 281
 282         const wakeup_engine_interface *interface = &(mSelectedEngine->interface);
 283
 284         if (NULL == interface ||
 285                 NULL == interface->get_utterance_data ||
 286                 NULL == interface->get_utterance_data_count)
 287                 return;
 288
 289         MWR_LOGD("data_count : %d", interface->get_utterance_data_count());
 290
 291 #ifdef BUF_SAVE_MODE
 292         if (g_pFile) {
 293                 fclose(g_pFile);
 294                 g_pFile = NULL;
 295         } else {
 296                 MWR_LOGD("[Recorder Info] File not found!");
 297         }
 298
 299         while (1) {
 300                 snprintf(g_temp_file_name, sizeof(g_temp_file_name), "/tmp/ma_wue_%d_%d", getpid(), g_count);
 301                 int ret = access(g_temp_file_name, 0);
 302
 303                 if (0 == ret) {
 304                         MWR_LOGD("[Recorder ERROR] File is already exist");
 305                         if (0 == remove(g_temp_file_name)) {
 306                                 MWR_LOGD("[Recorder] Remove file");
 307                                 break;
 308                         } else {
 309                                 g_count++;
 310                         }
 311                 } else {
 312                         break;
 313                 }
 314         }
 315
 316         MWR_LOGD("[Recorder] Temp file name=[%s]", g_temp_file_name);
 317
 318         /* open test file */
 319         g_pFile = fopen(g_temp_file_name, "wb+x");
 320         if (!g_pFile) {
 321                 MWR_LOGD("[Recorder ERROR] File not found!");
 322                 return;
 323         }
 324         g_count++;
 325 #endif
 326
 327         mas_speech_data speech_data;
 328         int index = 0;
 329         bool finish_event_sent = false;
 330
 331         if (mWakeWordAudioRequired &&
 332                 NULL != interface->get_wake_word_data &&
 333                 NULL != interface->get_wake_word_data_count) {
 334                 for (const auto& observer : mObservers) {
 335                         if (observer) {
 336                                 if (!observer->on_audio_streaming_data_section(MA_AUDIO_STREAMING_DATA_SECTION_WAKE_WORD)) {
 337                                         LOGE("[Recorder WARNING] One of the observer returned false");
 338                                 }
 339                         }
 340                 }
 341                 int count = interface->get_wake_word_data_count();
 342                 while (!(mStopStreamingThread.load()) && index < count) {
 343                         int ret = interface->get_wake_word_data(index, &speech_data);
 344                         if (0 == ret) {
 345 #ifdef BUF_SAVE_MODE
 346                                 if (g_pFile)
 347                                         fwrite(speech_data.buffer, 1, speech_data.len, g_pFile);
 348 #endif
 349                                 for (const auto& observer : mObservers) {
 350                                         if (observer) {
 351                                                 if (!observer->on_streaming_audio_data(
 352                                                         speech_data.event, speech_data.buffer, speech_data.len)) {
 353                                                         LOGE("[Recorder WARNING] One of the observer returned false");
 354                                                 }
 355                                         }
 356                                 }
 357                         } else {
 358                                 break;
 359                         }
 360                         index++;
 361                 }
 362                 index = 0;
 363                 for (const auto& observer : mObservers) {
 364                         if (observer) {
 365                                 if (!observer->on_audio_streaming_data_section(MA_AUDIO_STREAMING_DATA_SECTION_UTTERANCE)) {
 366                                         LOGE("[Recorder WARNING] One of the observer returned false");
 367                                 }
 368                         }
 369                 }
 370         }
 371
 372         int burst_count = 0;
 373         while (!(mStopStreamingThread.load())) {
 374                 int ret = -1;
 375                 int cnt = 0;
 376
 377                 /* get feedback data */
 378                 if (interface && interface->get_utterance_data) {
 379                         ret = interface->get_utterance_data(index, &speech_data);
 380                         if (0 != ret) {
 381                                 /* empty queue */
 382                                 MWR_LOGD("[DEBUG] No feedback data. Waiting mode : %d", ret);
 383
 384                                 /* waiting */
 385                                 while (!(mStopStreamingThread.load())) {
 386                                         burst_count = 0;
 387                                         this_thread::sleep_for(chrono::milliseconds(10));
 388                                         if (index < interface->get_utterance_data_count()) {
 389                                                 MWR_LOGD("[INFO] Resume thread");
 390                                                 break;
 391                                         }
 392                                         if (g_speech_pcm_wait_count < cnt) {
 393                                                 unsigned char final_buffer[2] = {'\0', };
 394                                                 MWR_LOGE("[ERROR] Wrong request, there's no pcm data");
 395 #ifdef BUF_SAVE_MODE
 396                                                 if (g_pFile) {
 397                                                         fwrite(final_buffer, 1, sizeof(final_buffer), g_pFile);
 398                                                         MWR_LOGE("[Recorder SUCCESS] File Close");
 399                                                         fclose(g_pFile);
 400                                                         g_pFile = NULL;
 401                                                 }
 402 #endif
 403                                                 for (const auto& observer : mObservers) {
 404                                                         if (observer) {
 405                                                                 if (!observer->on_streaming_audio_data(
 406                                                                         MAS_SPEECH_STREAMING_EVENT_FAIL, NULL, 0)) {
 407                                                                         LOGE("[Recorder WARNING] One of the observer returned false");
 408                                                                 }
 409                                                                 if (!observer->on_streaming_audio_data(
 410                                                                         MAS_SPEECH_STREAMING_EVENT_FINISH, final_buffer, sizeof(final_buffer))) {
 411                                                                         LOGE("[Recorder WARNING] One of the observer returned false");
 412                                                                 }
 413                                                         }
 414                                                 }
 415                                                 return;
 416                                         }
 417                                         cnt++;
 418                                 }
 419                                 MWR_LOGD("[INFO] Finish to wait for new feedback data come");
 420
 421                                 /* resume feedback thread */
 422                                 continue;
 423                         }
 424
 425 #ifdef BUF_SAVE_MODE
 426                         if (g_pFile)
 427                                 fwrite(speech_data.buffer, 1, speech_data.len, g_pFile);
 428
 429                         if (MAS_SPEECH_STREAMING_EVENT_FINISH == speech_data.event) {
 430                                 if (g_pFile) {
 431                                         MWR_LOGE("[Recorder SUCCESS] File Close");
 432                                         fclose(g_pFile);
 433                                         g_pFile = NULL;
 434                                 } else {
 435                                         MWR_LOGE("[Recorder ERROR] File not found!");
 436                                 }
 437                         }
 438 #endif
 439                         const int sleep_duration_in_millis = 10;
 440                         const int max_burst_count = 3;
 441                         if (++burst_count >= max_burst_count) {
 442                                 burst_count = 0;
 443                                 this_thread::sleep_for(chrono::milliseconds(sleep_duration_in_millis));
 444                                 MWR_LOGI("[INFO] Streaming data burst transmission detected, forcing sleep");
 445                         }
 446                         for (const auto& observer : mObservers) {
 447                                 if (observer) {
 448                                         if (!observer->on_streaming_audio_data(
 449                                                 speech_data.event, speech_data.buffer, speech_data.len)) {
 450                                                 LOGE("[Recorder WARNING] One of the observer returned false");
 451                                         }
 452                                 }
 453                         }
 454
 455                         if (MAS_SPEECH_STREAMING_EVENT_FINISH == speech_data.event) {
 456                                 MWR_LOGI("[INFO] Finish to get and send speech data");
 457                                 finish_event_sent = true;
 458                                 break;
 459                         }
 460
 461                         index++;
 462                 }
 463         }
 464
 465         if (true != finish_event_sent) {
 466                 unsigned char final_buffer[2] = {'\0', };
 467                 for (const auto& observer : mObservers) {
 468                         if (observer) {
 469                                 if (!observer->on_streaming_audio_data(
 470                                         MAS_SPEECH_STREAMING_EVENT_FINISH, final_buffer, sizeof(final_buffer))) {
 471                                         LOGE("[Recorder WARNING] One of the observer returned false");
 472                                 }
 473                         }
 474                 }
 475 #ifdef BUF_SAVE_MODE
 476                 if (g_pFile) {
 477                         fwrite(final_buffer, 1, sizeof(final_buffer), g_pFile);
 478                         MWR_LOGE("[Recorder SUCCESS] File Close");
 479                         fclose(g_pFile);
 480                         g_pFile = NULL;
 481                 }
 482 #endif
 483         }
 484
 485         MWR_LOGI("[EXIT]");
 486 }
 487
 488 void CWakeupEngineManager::start_streaming_current_utterance_data()
 489 {
 490         if (mStreamingThread.joinable()) {
 491                 MWR_LOGE("ERROR : mStreamingThread is joinable, will not start a new thread");
 492                 return;
 493         }
 494         mStreamingThread = thread(&CWakeupEngineManager::streaming_speech_data_thread_func, this);
 495 }
 496
 497 void CWakeupEngineManager::stop_streaming_current_utterance_data()
 498 {
 499         if (mStreamingThread.joinable()) {
 500                 MWR_LOGD("mStreamingThread is joinable, trying join()");
 501                 mStopStreamingThread.store(true);
 502                 mStreamingThread.join();
 503         }
 504         mStopStreamingThread.store(false);
 505 }
 506
 507 void CWakeupEngineManager::update_manager_state(wakeup_manager_state_e state)
 508 {
 509         for (const auto& info : mEngineInfo) {
 510                 if (info.interface.update_manager_state) {
 511                         try {
 512                                 info.interface.update_manager_state(state);
 513                         } catch (const std::exception& e) {
 514                                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 515                                         info.engine_name.c_str(), e.what());
 516                         }
 517                 }
 518         }
 519         mWakeupManagerState = state;
 520 }
 521
 522 void CWakeupEngineManager::update_recognition_result(string appid, int result)
 523 {
 524         if (mSelectedEngine) {
 525                 if (mSelectedEngine->interface.update_recognition_result) {
 526                         mSelectedEngine->interface.update_recognition_result(appid.c_str(), result);
 527                 }
 528         }
 529 }
 530
 531 void CWakeupEngineManager::engine_add_target_assistant(string engine_name, string appid)
 532 {
 533         const auto& iter = find_if(mEngineInfo.begin(), mEngineInfo.end(),
 534                 [engine_name](const EngineInfo& info) {
 535                         return (0 == info.engine_name.compare(engine_name));
 536                 });
 537
 538         if (mEngineInfo.end() == iter) {
 539                 /* Not found, add new library */
 540                 pkgmgrinfo_appinfo_h handle;
 541                 int ret = pkgmgrinfo_appinfo_get_appinfo(engine_name.c_str(), &handle);
 542                 if (PMINFO_R_OK == ret) {
 543                         char *root_path = nullptr;
 544                         ret = pkgmgrinfo_appinfo_get_root_path(handle, &root_path);
 545                         if (PMINFO_R_OK == ret && nullptr != root_path) {
 546                                 string path = root_path;
 547                                 path += "/";
 548                                 path += MA_WAKEUP_DEDICATED_ENGINE_PATH;
 549                                 add_engine(engine_name, path);
 550                         }
 551                         pkgmgrinfo_appinfo_destroy_appinfo(handle);
 552                 }
 553                 /* Find again to add appid to the newly created engine's assistant list */
 554                 const auto &new_iter = find_if(mEngineInfo.begin(), mEngineInfo.end(),
 555                         [engine_name](const EngineInfo& info) {
 556                                 return (0 == info.engine_name.compare(engine_name));
 557                         });
 558                 if (mEngineInfo.end() != new_iter) {
 559                         new_iter->assistant_list.push_back(appid);
 560                 }
 561         } else {
 562                 /* If the engine already exists, simply add the appid to the assistant list */
 563                 iter->assistant_list.push_back(appid);
 564         }
 565 }
 566
 567 void CWakeupEngineManager::engine_add_wakeup_word(string appid, string wakeup_word, string language)
 568 {
 569         for (const auto& info : mEngineInfo) {
 570                 bool found = contains(info.assistant_list, appid);
 571                 if (found) {
 572                         if (info.interface.add_wakeup_word) {
 573                                 try {
 574                                         info.interface.add_wakeup_word(appid.c_str(), wakeup_word.c_str(), language.c_str());
 575                                 } catch (const std::exception& e) {
 576                                         MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 577                                                 info.engine_name.c_str(), e.what());
 578                                 }
 579                         } else {
 580                                 MWR_LOGE("Wakeup Engine does not provide add_wakeup_word");
 581                         }
 582                 }
 583         }
 584 }
 585
 586 void CWakeupEngineManager::engine_remove_wakeup_word(string appid, string wakeup_word, string language)
 587 {
 588         for (const auto& info : mEngineInfo) {
 589                 bool found = contains(info.assistant_list, appid);
 590                 if (found) {
 591                         if (info.interface.remove_wakeup_word) {
 592                                 try {
 593                                         info.interface.remove_wakeup_word(appid.c_str(), wakeup_word.c_str(), language.c_str());
 594                                 } catch (const std::exception& e) {
 595                                         MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 596                                                 info.engine_name.c_str(), e.what());
 597                                 }
 598                         } else {
 599                                 MWR_LOGE("Wakeup Engine does not provide remove_wakeup_word");
 600                         }
 601                 }
 602         }
 603 }
 604
 605 void CWakeupEngineManager::engine_set_assistant_specific_command(string appid, string command)
 606 {
 607         for (const auto& info : mEngineInfo) {
 608                 bool found = contains(info.assistant_list, appid);
 609                 if (found) {
 610                         if (info.interface.set_assistant_specific_command) {
 611                                 try {
 612                                         info.interface.set_assistant_specific_command(appid.c_str(), command.c_str());
 613                                 } catch (const std::exception& e) {
 614                                         MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 615                                                 info.engine_name.c_str(), e.what());
 616                                 }
 617                         }
 618                 }
 619         }
 620 }
 621
 622 void CWakeupEngineManager::engine_feed_audio_data(long time, void* data, int len)
 623 {
 624         for (const auto& info : mEngineInfo) {
 625                 if (info.activated &&
 626                         info.audio_data_require_status &&
 627                         info.interface.feed_audio_data) {
 628                         try {
 629                                 bool filtered_out = false;
 630                                 /* After a wakeup event, wakeup engines other than the selected one
 631                                    does not need to receive audio data. */
 632                                 if (WAKEUP_MANAGER_STATE_UTTERANCE == mWakeupManagerState) {
 633                                         if (mSelectedEngine && &info != mSelectedEngine) {
 634                                                 filtered_out = true;
 635                                         }
 636                                 }
 637                                 if (!filtered_out) {
 638                                         int ret = info.interface.feed_audio_data(time, data, len);
 639                                         if (0 != ret) {
 640                                                 LOGE("[ERROR] Fail to feed speech data, ret(%d) : %s", ret, info.engine_name.c_str());
 641                                         }
 642                                 }
 643                         } catch (const std::exception& e) {
 644                                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 645                                         info.engine_name.c_str(), e.what());
 646                         }
 647                 }
 648         }
 649 }
 650
 651 void CWakeupEngineManager::engine_set_dependency_module_command(string engine_name, string command)
 652 {
 653         const auto& iter = find_if(mEngineInfo.begin(), mEngineInfo.end(),
 654                 [engine_name](const EngineInfo& info) {
 655                         return (0 == info.engine_name.compare(engine_name));
 656                 });
 657
 658         if (mEngineInfo.end() != iter) {
 659                 if (iter->activated &&
 660                         iter->interface.set_dependency_module_command) {
 661                         try {
 662                                 int ret = iter->interface.set_dependency_module_command(command.c_str());
 663                                 if (0 != ret) {
 664                                         LOGE("[ERROR] Fail to set dependency module command, ret(%d) : %s",
 665                                                 ret, iter->engine_name.c_str());
 666                                 }
 667                         } catch (const std::exception& e) {
 668                                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 669                                         iter->engine_name.c_str(), e.what());
 670                         }
 671                 }
 672         }
 673 }
 674
 675 bool CWakeupEngineManager::on_wakeup_event(string engine_name, mas_wakeup_event_info info)
 676 {
 677         MWR_LOGD("[ENTER]");
 678
 679         for (const auto& observer : mObservers) {
 680                 if (observer) {
 681                         if (!observer->on_wakeup_event(engine_name, info)) {
 682                                 LOGE("[Recorder WARNING] One of the observer returned false");
 683                         }
 684                 }
 685         }
 686
 687         return true;
 688 }
 689
 690 bool CWakeupEngineManager::on_speech_status(string engine_name, mas_speech_status_e status)
 691 {
 692         MWR_LOGD("[ENTER]");
 693
 694         for (const auto& observer : mObservers) {
 695                 if (observer) {
 696                         if (!observer->on_speech_status(engine_name, status)) {
 697                                 LOGE("[Recorder WARNING] One of the observer returned false");
 698                         }
 699                 }
 700         }
 701
 702         return true;
 703 }
 704
 705 bool CWakeupEngineManager::on_error(string engine_name, int error_code, string error_message)
 706 {
 707         MWR_LOGD("[ENTER]");
 708
 709         for (const auto& observer : mObservers) {
 710                 if (observer) {
 711                         if (!observer->on_error(engine_name, error_code, error_message)) {
 712                                 LOGE("[Recorder WARNING] One of the observer returned false");
 713                         }
 714                 }
 715         }
 716
 717         return true;
 718 }
 719
 720 bool CWakeupEngineManager::on_audio_data_require_status(string engine_name, bool require)
 721 {
 722         MWR_LOGI("[ENTER] %s, %d", engine_name.c_str(), require);
 723
 724         bool found = false;
 725         // LOCK REQUIRED
 726         int count = 0;
 727         for (auto& info : mEngineInfo) {
 728                 if (info.engine_name.compare(engine_name) == 0) {
 729                         found = true;
 730                         info.audio_data_require_status = require;
 731                 }
 732                 if (info.activated && info.audio_data_require_status) {
 733                         count++;
 734                 }
 735         }
 736         MWR_LOGD("count : %d", count);
 737         if (count > 0) {
 738                 mAudioDataRequired = true;
 739         } else {
 740                 mAudioDataRequired = false;
 741         }
 742
 743         if (found) {
 744                 for (const auto& observer : mObservers) {
 745                         if (observer) {
 746                                 if (!observer->on_audio_data_require_status(engine_name, require)) {
 747                                         LOGE("[Recorder WARNING] One of the observer returned false");
 748                                 }
 749                         }
 750                 }
 751         }
 752         // UNLOCK REQUIRED
 753         return true;
 754 }
 755
 756 bool CWakeupEngineManager::on_wakeup_engine_command(string engine_name, mas_wakeup_engine_command_target_e target, string assistant_name, string command)
 757 {
 758         MWR_LOGI("[ENTER] : %s %d %s %s",
 759                 engine_name.c_str(), target, assistant_name.c_str(), command.c_str());
 760
 761         for (const auto& observer : mObservers) {
 762                 if (observer) {
 763                         if (MAS_WAKEUP_ENGINE_COMMAND_TARGET_DEPENDENCY_MODULE == target) {
 764                                 if (!observer->on_wakeup_engine_command(target, engine_name, assistant_name, command)) {
 765                                         LOGE("[Recorder WARNING] One of the observer returned false");
 766                                 }
 767                         } else {
 768                                 const auto& iter = find_if(mEngineInfo.begin(), mEngineInfo.end(),
 769                                         [engine_name](const EngineInfo& info) {
 770                                                 return (0 == info.engine_name.compare(engine_name));
 771                                         });
 772                                 if (mEngineInfo.end() != iter) {
 773                                         for (const auto& assistant : iter->assistant_list) {
 774                                                 if (0 == assistant_name.compare(assistant) ||
 775                                                         MAS_WAKEUP_ENGINE_COMMAND_TARGET_ALL_ASSISTANTS == target) {
 776                                                                 MWR_LOGI("Calling on_wakeup_engine_command for %s", assistant.c_str());
 777                                                         if (!observer->on_wakeup_engine_command(target, engine_name, assistant, command)) {
 778                                                                 LOGE("[Recorder WARNING] One of the observer returned false");
 779                                                         }
 780                                                 }
 781                                         }
 782                                 }
 783                         }
 784                 }
 785         }
 786
 787         return true;
 788 }
 789
 790 void CWakeupEngineManager::add_engine(string name, string path)
 791 {
 792         MWR_LOGD("Name (%s), Filepath(%s)", name.c_str(), path.c_str());
 793
 794         char* error = NULL;
 795         EngineInfo info;
 796         info.engine_handle = dlopen(path.c_str(), RTLD_LAZY);
 797         if (nullptr != (error = dlerror()) || nullptr == info.engine_handle) {
 798                 MWR_LOGD("[ERROR] Fail to dlopen(%s), error(%s)", path.c_str(), error);
 799                 if (info.engine_handle) dlclose(info.engine_handle);
 800                 return;
 801         }
 802
 803         /* Interfaces without version information */
 804         info.interface.initialize =
 805                 (wakeup_engine_initialize)dlsym(info.engine_handle,
 806                 MA_WAKEUP_ENGINE_FUNC_INITIALIZE);
 807         info.interface.deinitialize =
 808                 (wakeup_engine_deinitialize)dlsym(info.engine_handle,
 809                 MA_WAKEUP_ENGINE_FUNC_DEINITIALIZE);
 810         info.interface.activate =
 811                 (wakeup_engine_activate)dlsym(info.engine_handle,
 812                 MA_WAKEUP_ENGINE_FUNC_ACTIVATE);
 813         info.interface.deactivate =
 814                 (wakeup_engine_deactivate)dlsym(info.engine_handle,
 815                 MA_WAKEUP_ENGINE_FUNC_DEACTIVATE);
 816         info.interface.add_wakeup_word =
 817                 (wakeup_engine_add_wakeup_word)dlsym(info.engine_handle,
 818                 MA_WAKEUP_ENGINE_FUNC_ADD_WAKEUP_WORD);
 819         info.interface.remove_wakeup_word =
 820                 (wakeup_engine_remove_wakeup_word)dlsym(info.engine_handle,
 821                 MA_WAKEUP_ENGINE_FUNC_REMOVE_WAKEUP_WORD);
 822         info.interface.add_language =
 823                 (wakeup_engine_add_language)dlsym(info.engine_handle,
 824                 MA_WAKEUP_ENGINE_FUNC_ADD_LANGUAGE);
 825         info.interface.set_language =
 826                 (wakeup_engine_set_language)dlsym(info.engine_handle,
 827                 MA_WAKEUP_ENGINE_FUNC_SET_LANGUAGE);
 828         info.interface.update_manager_state =
 829                 (wakeup_engine_update_manager_state)dlsym(info.engine_handle,
 830                 MA_WAKEUP_ENGINE_FUNC_UPDATE_MANAGER_STATE);
 831         info.interface.update_recognition_result =
 832                 (wakeup_engine_update_recognition_result)dlsym(info.engine_handle,
 833                 MA_WAKEUP_ENGINE_FUNC_UPDATE_RECOGNITION_RESULT);
 834         info.interface.set_audio_format =
 835                 (wakeup_engine_set_audio_format)dlsym(info.engine_handle,
 836                 MA_WAKEUP_ENGINE_FUNC_SET_AUDIO_FORMAT);
 837         info.interface.get_audio_format =
 838                 (wakeup_engine_get_audio_format)dlsym(info.engine_handle,
 839                 MA_WAKEUP_ENGINE_FUNC_GET_AUDIO_FORMAT);
 840         info.interface.feed_audio_data =
 841                 (wakeup_engine_feed_audio_data)dlsym(info.engine_handle,
 842                 MA_WAKEUP_ENGINE_FUNC_FEED_AUDIO_DATA);
 843         info.interface.get_utterance_data_count =
 844                 (wakeup_engine_get_utterance_data_count)dlsym(info.engine_handle,
 845                 MA_WAKEUP_ENGINE_FUNC_GET_UTTERANCE_DATA_COUNT);
 846         info.interface.get_utterance_data =
 847                 (wakeup_engine_get_utterance_data)dlsym(info.engine_handle,
 848                 MA_WAKEUP_ENGINE_FUNC_GET_UTTERANCE_DATA);
 849         info.interface.get_wake_word_data_count =
 850                 (wakeup_engine_get_wake_word_data_count)dlsym(info.engine_handle,
 851                 MA_WAKEUP_ENGINE_FUNC_GET_WAKE_WORD_DATA_COUNT);
 852         info.interface.get_wake_word_data =
 853                 (wakeup_engine_get_wake_word_data)dlsym(info.engine_handle,
 854                 MA_WAKEUP_ENGINE_FUNC_GET_WAKE_WORD_DATA);
 855         info.interface.set_assistant_specific_command =
 856                 (wakeup_engine_set_assistant_specific_command)dlsym(info.engine_handle,
 857                 MA_WAKEUP_ENGINE_FUNC_SET_ASSISTANT_SPECIFIC_COMMAND);
 858         info.interface.set_wake_word_audio_require_flag =
 859                 (wakeup_engine_set_wake_word_audio_require_flag)dlsym(info.engine_handle,
 860                 MA_WAKEUP_ENGINE_FUNC_SET_WAKE_WORD_AUDIO_REQUIRE_FLAG);
 861         info.interface.set_wakeup_event_callback =
 862                 (wakeup_engine_set_wakeup_event_callback)dlsym(info.engine_handle,
 863                 MA_WAKEUP_ENGINE_FUNC_SET_WAKEUP_EVENT_CALLBACK);
 864         info.interface.set_speech_status_callback =
 865                 (wakeup_engine_set_speech_status_callback)dlsym(info.engine_handle,
 866                 MA_WAKEUP_ENGINE_FUNC_SET_SPEECH_STATUS_CALLBACK);
 867         info.interface.set_error_callback =
 868                 (wakeup_engine_set_error_callback)dlsym(info.engine_handle,
 869                 MA_WAKEUP_ENGINE_FUNC_SET_ERROR_CALLBACK);
 870         info.interface.set_audio_data_require_status_callback =
 871                 (wakeup_engine_set_audio_data_require_status_callback)dlsym(info.engine_handle,
 872                 MA_WAKEUP_ENGINE_FUNC_SET_AUDIO_DATA_REQUIRE_STATUS_CALLBACK);
 873         info.interface.set_wakeup_engine_command_callback =
 874                 (wakeup_engine_set_wakeup_engine_command_callback)dlsym(info.engine_handle,
 875                 MA_WAKEUP_ENGINE_FUNC_SET_WAKEUP_ENGINE_COMMAND_CALLBACK);
 876
 877         /* Interfaces after version 1 */
 878         info.interface.get_version =
 879                 (wakeup_engine_get_version)dlsym(info.engine_handle,
 880                 MA_WAKEUP_ENGINE_FUNC_GET_VERSION);
 881         info.interface.set_dependency_module_command =
 882                 (wakeup_engine_set_dependency_module_command)dlsym(info.engine_handle,
 883                 MA_WAKEUP_ENGINE_FUNC_SET_DEPENDENCY_MODULE_COMMAND);
 884
 885         info.version = 0;
 886         info.engine_path = path;
 887         info.engine_name = name;
 888
 889         info.activated = false;
 890         info.audio_data_require_status = false;
 891
 892         /* All the necessary information has already been set properly */
 893         mEngineInfo.push_back(info);
 894
 895         /* Workaround for registering C-style callbacks */
 896         typedef struct {
 897                 CWakeupEngineManager *manager;
 898                 string engine_name;
 899         } CallbackUserData;
 900
 901         static deque<CallbackUserData> callback_user_data;
 902
 903         CallbackUserData user_data;
 904         user_data.manager = this;
 905         user_data.engine_name = info.engine_name;
 906         callback_user_data.push_back(user_data);
 907
 908         MWR_LOGI("Initializing wakeup engine : %s %p %p",
 909                 info.engine_path.c_str(),
 910                 info.interface.initialize,
 911                 &callback_user_data.back());
 912
 913         try {
 914                 if (info.interface.set_wakeup_event_callback) {
 915                         info.interface.set_wakeup_event_callback(
 916                                 [](mas_wakeup_event_info info, void* user_data) {
 917                                         MWR_LOGI("user_data : %p", user_data);
 918                                         CallbackUserData *data = static_cast<CallbackUserData*>(user_data);
 919                                         if (nullptr == data) return;
 920                                         if (nullptr == data->manager) return;
 921                                         info.wakeup_engine = data->engine_name.c_str();
 922                                         data->manager->on_wakeup_event(data->engine_name, info);
 923                                 }, &(callback_user_data.back()));
 924                 }
 925
 926                 if (info.interface.set_audio_data_require_status_callback) {
 927                         info.interface.set_audio_data_require_status_callback(
 928                                 [](bool require, void* user_data) {
 929                                         MWR_LOGI("user_data : %p", user_data);
 930                                         CallbackUserData *data = static_cast<CallbackUserData*>(user_data);
 931                                         if (nullptr == data) return;
 932                                         if (nullptr == data->manager) return;
 933                                         data->manager->on_audio_data_require_status(data->engine_name, require);
 934                                 }, &(callback_user_data.back()));
 935                 }
 936
 937                 if (info.interface.set_wakeup_engine_command_callback) {
 938                         info.interface.set_wakeup_engine_command_callback(
 939                                 [](mas_wakeup_engine_command_target_e target,
 940                                         const char* assistant_name, const char* command, void* user_data) {
 941                                         MWR_LOGI("user_data : %p", user_data);
 942                                         CallbackUserData* data = static_cast<CallbackUserData*>(user_data);
 943                                         if (nullptr == data) return;
 944                                         if (nullptr == data->manager) return;
 945                                         if (nullptr == command) return;
 946                                         data->manager->on_wakeup_engine_command(
 947                                                 data->engine_name, target, (assistant_name ? assistant_name : ""), command);
 948                                 }, &(callback_user_data.back()));
 949                 }
 950
 951                 if (info.interface.initialize) {
 952                         info.interface.initialize();
 953                 }
 954                 if (info.interface.get_version) {
 955                         int version;
 956                         if (0 == info.interface.get_version(&version)) {
 957                                 info.version = version;
 958                         }
 959                 }
 960         } catch (const std::exception& e) {
 961                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 962                         info.engine_name.c_str(), e.what());
 963         }
 964 }
 965
 966 void CWakeupEngineManager::add_engine_directory(string name, string path)
 967 {
 968         if (0 == path.size()) return;
 969
 970         DIR* dp = opendir(path.c_str());
 971         if (NULL == dp) {
 972                 MWR_LOGD("Failed opening directory : %s", path.c_str());
 973         } else {
 974                 struct dirent *dirp = NULL;
 975                 string filepath;
 976                 do {
 977                         dirp = readdir(dp);
 978
 979                         if (NULL != dirp) {
 980                                 if (!strcmp(".", dirp->d_name) || !strcmp("..", dirp->d_name))
 981                                         continue;
 982
 983                                 if (DT_REG != dirp->d_type) /* If not a regular file */
 984                                         continue;
 985
 986                                 filepath = path;
 987                                 filepath += "/";
 988                                 filepath += dirp->d_name;
 989
 990                                 if (filepath.length() >= _POSIX_PATH_MAX) {
 991                                         MWR_LOGD("File path is too long : %s", filepath.c_str());
 992                                         closedir(dp);
 993                                         return;
 994                                 }
 995                                 add_engine(name, filepath);
 996                         }
 997                 } while (NULL != dirp);
 998
 999                 closedir(dp);
1000         }
1001 }
1002
1003 } // wakeup
1004 } // multiassistant