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                         MWR_LOGI("%s has %s", info.engine_name.c_str(), appid.c_str());
 228                         bool previously_activated = info.activated;
 229                         if (activated) {
 230                                 info.activated_assistants.insert(appid);
 231                         } else {
 232                                 info.activated_assistants.erase(appid);
 233                         }
 234                         info.activated = (info.activated_assistants.size() > 0);
 235                         if (previously_activated != info.activated) {
 236                                 if (info.activated) {
 237                                         try {
 238                                                 info.interface.activate();
 239                                         } catch (const std::exception& e) {
 240                                                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 241                                                         info.engine_name.c_str(), e.what());
 242                                         }
 243                                 } else {
 244                                         try {
 245                                                 info.interface.deactivate();
 246                                         } catch (const std::exception& e) {
 247                                                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 248                                                         info.engine_name.c_str(), e.what());
 249                                         }
 250                                 }
 251                                 /* Activated status changed, need to update audio_data_require_status too */
 252                                 on_audio_data_require_status(info.engine_name, info.audio_data_require_status);
 253                         }
 254                 } else {
 255                         MWR_LOGI("%s does not have %s", info.engine_name.c_str(), appid.c_str());
 256                 }
 257         }
 258 }
 259
 260 void CWakeupEngineManager::set_wake_word_audio_require_flag(bool require)
 261 {
 262         MWR_LOGD("[ENTER]");
 263         mWakeWordAudioRequired = require;
 264         for (const auto& info : mEngineInfo) {
 265                 if (info.interface.set_wake_word_audio_require_flag) {
 266                         try {
 267                                 info.interface.set_wake_word_audio_require_flag(require);
 268                         } catch (const std::exception& e) {
 269                                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 270                                         info.engine_name.c_str(), e.what());
 271                         }
 272                 }
 273         }
 274 }
 275
 276 void CWakeupEngineManager::streaming_speech_data_thread_func()
 277 {
 278         MWR_LOGI("[ENTER]");
 279
 280         if (nullptr == mSelectedEngine) {
 281                 MWR_LOGE("No Engine Selected");
 282                 return;
 283         }
 284
 285         const wakeup_engine_interface *interface = &(mSelectedEngine->interface);
 286
 287         if (NULL == interface ||
 288                 NULL == interface->get_utterance_data ||
 289                 NULL == interface->get_utterance_data_count)
 290                 return;
 291
 292         MWR_LOGD("data_count : %d", interface->get_utterance_data_count());
 293
 294 #ifdef BUF_SAVE_MODE
 295         if (g_pFile) {
 296                 fclose(g_pFile);
 297                 g_pFile = NULL;
 298         } else {
 299                 MWR_LOGD("[Recorder Info] File not found!");
 300         }
 301
 302         while (1) {
 303                 snprintf(g_temp_file_name, sizeof(g_temp_file_name), "/tmp/ma_wue_%d_%d", getpid(), g_count);
 304                 int ret = access(g_temp_file_name, 0);
 305
 306                 if (0 == ret) {
 307                         MWR_LOGD("[Recorder ERROR] File is already exist");
 308                         if (0 == remove(g_temp_file_name)) {
 309                                 MWR_LOGD("[Recorder] Remove file");
 310                                 break;
 311                         } else {
 312                                 g_count++;
 313                         }
 314                 } else {
 315                         break;
 316                 }
 317         }
 318
 319         MWR_LOGD("[Recorder] Temp file name=[%s]", g_temp_file_name);
 320
 321         /* open test file */
 322         g_pFile = fopen(g_temp_file_name, "wb+x");
 323         if (!g_pFile) {
 324                 MWR_LOGD("[Recorder ERROR] File not found!");
 325                 return;
 326         }
 327         g_count++;
 328 #endif
 329
 330         mas_speech_data speech_data;
 331         int index = 0;
 332         bool finish_event_sent = false;
 333
 334         if (mWakeWordAudioRequired &&
 335                 NULL != interface->get_wake_word_data &&
 336                 NULL != interface->get_wake_word_data_count) {
 337                 for (const auto& observer : mObservers) {
 338                         if (observer) {
 339                                 if (!observer->on_audio_streaming_data_section(MA_AUDIO_STREAMING_DATA_SECTION_WAKE_WORD)) {
 340                                         LOGE("[Recorder WARNING] One of the observer returned false");
 341                                 }
 342                         }
 343                 }
 344                 int count = interface->get_wake_word_data_count();
 345                 while (!(mStopStreamingThread.load()) && index < count) {
 346                         int ret = interface->get_wake_word_data(index, &speech_data);
 347                         if (0 == ret) {
 348 #ifdef BUF_SAVE_MODE
 349                                 if (g_pFile)
 350                                         fwrite(speech_data.buffer, 1, speech_data.len, g_pFile);
 351 #endif
 352                                 for (const auto& observer : mObservers) {
 353                                         if (observer) {
 354                                                 if (!observer->on_streaming_audio_data(
 355                                                         speech_data.event, speech_data.buffer, speech_data.len)) {
 356                                                         LOGE("[Recorder WARNING] One of the observer returned false");
 357                                                 }
 358                                         }
 359                                 }
 360                         } else {
 361                                 break;
 362                         }
 363                         index++;
 364                 }
 365                 index = 0;
 366                 for (const auto& observer : mObservers) {
 367                         if (observer) {
 368                                 if (!observer->on_audio_streaming_data_section(MA_AUDIO_STREAMING_DATA_SECTION_UTTERANCE)) {
 369                                         LOGE("[Recorder WARNING] One of the observer returned false");
 370                                 }
 371                         }
 372                 }
 373         }
 374
 375         int burst_count = 0;
 376         while (!(mStopStreamingThread.load())) {
 377                 int ret = -1;
 378                 int cnt = 0;
 379
 380                 /* get feedback data */
 381                 if (interface && interface->get_utterance_data) {
 382                         ret = interface->get_utterance_data(index, &speech_data);
 383                         if (0 != ret) {
 384                                 /* empty queue */
 385                                 MWR_LOGD("[DEBUG] No feedback data. Waiting mode : %d", ret);
 386
 387                                 /* waiting */
 388                                 while (!(mStopStreamingThread.load())) {
 389                                         burst_count = 0;
 390                                         this_thread::sleep_for(chrono::milliseconds(10));
 391                                         if (index < interface->get_utterance_data_count()) {
 392                                                 MWR_LOGD("[INFO] Resume thread");
 393                                                 break;
 394                                         }
 395                                         if (g_speech_pcm_wait_count < cnt) {
 396                                                 unsigned char final_buffer[2] = {'\0', };
 397                                                 MWR_LOGE("[ERROR] Wrong request, there's no pcm data");
 398 #ifdef BUF_SAVE_MODE
 399                                                 if (g_pFile) {
 400                                                         fwrite(final_buffer, 1, sizeof(final_buffer), g_pFile);
 401                                                         MWR_LOGE("[Recorder SUCCESS] File Close");
 402                                                         fclose(g_pFile);
 403                                                         g_pFile = NULL;
 404                                                 }
 405 #endif
 406                                                 for (const auto& observer : mObservers) {
 407                                                         if (observer) {
 408                                                                 if (!observer->on_streaming_audio_data(
 409                                                                         MAS_SPEECH_STREAMING_EVENT_FAIL, NULL, 0)) {
 410                                                                         LOGE("[Recorder WARNING] One of the observer returned false");
 411                                                                 }
 412                                                                 if (!observer->on_streaming_audio_data(
 413                                                                         MAS_SPEECH_STREAMING_EVENT_FINISH, final_buffer, sizeof(final_buffer))) {
 414                                                                         LOGE("[Recorder WARNING] One of the observer returned false");
 415                                                                 }
 416                                                         }
 417                                                 }
 418                                                 return;
 419                                         }
 420                                         cnt++;
 421                                 }
 422                                 MWR_LOGD("[INFO] Finish to wait for new feedback data come");
 423
 424                                 /* resume feedback thread */
 425                                 continue;
 426                         }
 427
 428 #ifdef BUF_SAVE_MODE
 429                         if (g_pFile)
 430                                 fwrite(speech_data.buffer, 1, speech_data.len, g_pFile);
 431
 432                         if (MAS_SPEECH_STREAMING_EVENT_FINISH == speech_data.event) {
 433                                 if (g_pFile) {
 434                                         MWR_LOGE("[Recorder SUCCESS] File Close");
 435                                         fclose(g_pFile);
 436                                         g_pFile = NULL;
 437                                 } else {
 438                                         MWR_LOGE("[Recorder ERROR] File not found!");
 439                                 }
 440                         }
 441 #endif
 442                         const int sleep_duration_in_millis = 10;
 443                         const int max_burst_count = 3;
 444                         if (++burst_count >= max_burst_count) {
 445                                 burst_count = 0;
 446                                 this_thread::sleep_for(chrono::milliseconds(sleep_duration_in_millis));
 447                                 MWR_LOGI("[INFO] Streaming data burst transmission detected, forcing sleep");
 448                         }
 449                         for (const auto& observer : mObservers) {
 450                                 if (observer) {
 451                                         if (!observer->on_streaming_audio_data(
 452                                                 speech_data.event, speech_data.buffer, speech_data.len)) {
 453                                                 LOGE("[Recorder WARNING] One of the observer returned false");
 454                                         }
 455                                 }
 456                         }
 457
 458                         if (MAS_SPEECH_STREAMING_EVENT_FINISH == speech_data.event) {
 459                                 MWR_LOGI("[INFO] Finish to get and send speech data");
 460                                 finish_event_sent = true;
 461                                 break;
 462                         }
 463
 464                         index++;
 465                 }
 466         }
 467
 468         if (true != finish_event_sent) {
 469                 unsigned char final_buffer[2] = {'\0', };
 470                 for (const auto& observer : mObservers) {
 471                         if (observer) {
 472                                 if (!observer->on_streaming_audio_data(
 473                                         MAS_SPEECH_STREAMING_EVENT_FINISH, final_buffer, sizeof(final_buffer))) {
 474                                         LOGE("[Recorder WARNING] One of the observer returned false");
 475                                 }
 476                         }
 477                 }
 478 #ifdef BUF_SAVE_MODE
 479                 if (g_pFile) {
 480                         fwrite(final_buffer, 1, sizeof(final_buffer), g_pFile);
 481                         MWR_LOGE("[Recorder SUCCESS] File Close");
 482                         fclose(g_pFile);
 483                         g_pFile = NULL;
 484                 }
 485 #endif
 486         }
 487
 488         MWR_LOGI("[EXIT]");
 489 }
 490
 491 void CWakeupEngineManager::start_streaming_current_utterance_data()
 492 {
 493         if (mStreamingThread.joinable()) {
 494                 MWR_LOGE("ERROR : mStreamingThread is joinable, will not start a new thread");
 495                 return;
 496         }
 497         mStreamingThread = thread(&CWakeupEngineManager::streaming_speech_data_thread_func, this);
 498 }
 499
 500 void CWakeupEngineManager::stop_streaming_current_utterance_data()
 501 {
 502         if (mStreamingThread.joinable()) {
 503                 MWR_LOGD("mStreamingThread is joinable, trying join()");
 504                 mStopStreamingThread.store(true);
 505                 mStreamingThread.join();
 506         }
 507         mStopStreamingThread.store(false);
 508 }
 509
 510 void CWakeupEngineManager::update_manager_state(wakeup_manager_state_e state)
 511 {
 512         for (const auto& info : mEngineInfo) {
 513                 if (info.interface.update_manager_state) {
 514                         try {
 515                                 info.interface.update_manager_state(state);
 516                         } catch (const std::exception& e) {
 517                                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 518                                         info.engine_name.c_str(), e.what());
 519                         }
 520                 }
 521         }
 522         mWakeupManagerState = state;
 523 }
 524
 525 void CWakeupEngineManager::update_recognition_result(string appid, int result)
 526 {
 527         if (mSelectedEngine) {
 528                 if (mSelectedEngine->interface.update_recognition_result) {
 529                         mSelectedEngine->interface.update_recognition_result(appid.c_str(), result);
 530                 }
 531         }
 532 }
 533
 534 void CWakeupEngineManager::engine_add_target_assistant(string engine_name, string appid)
 535 {
 536         const auto& iter = find_if(mEngineInfo.begin(), mEngineInfo.end(),
 537                 [engine_name](const EngineInfo& info) {
 538                         return (0 == info.engine_name.compare(engine_name));
 539                 });
 540
 541         if (mEngineInfo.end() == iter) {
 542                 /* Not found, add new library */
 543                 pkgmgrinfo_appinfo_h handle;
 544                 int ret = pkgmgrinfo_appinfo_get_appinfo(engine_name.c_str(), &handle);
 545                 if (PMINFO_R_OK == ret) {
 546                         char *root_path = nullptr;
 547                         ret = pkgmgrinfo_appinfo_get_root_path(handle, &root_path);
 548                         if (PMINFO_R_OK == ret && nullptr != root_path) {
 549                                 string path = root_path;
 550                                 path += "/";
 551                                 path += MA_WAKEUP_DEDICATED_ENGINE_PATH;
 552                                 add_engine(engine_name, path);
 553                         }
 554                         pkgmgrinfo_appinfo_destroy_appinfo(handle);
 555                 }
 556                 /* Find again to add appid to the newly created engine's assistant list */
 557                 const auto &new_iter = find_if(mEngineInfo.begin(), mEngineInfo.end(),
 558                         [engine_name](const EngineInfo& info) {
 559                                 return (0 == info.engine_name.compare(engine_name));
 560                         });
 561                 if (mEngineInfo.end() != new_iter) {
 562                         new_iter->assistant_list.push_back(appid);
 563                 }
 564                 for (const auto assistant : new_iter->assistant_list) {
 565                         MWR_LOGI("Assistant List : %s %s", assistant.c_str(), new_iter->engine_name.c_str());
 566                 }
 567         } else {
 568                 /* If the engine already exists, simply add the appid to the assistant list */
 569                 iter->assistant_list.push_back(appid);
 570                 for (const auto assistant : iter->assistant_list) {
 571                         MWR_LOGI("Assistant List : %s %s", assistant.c_str(), iter->engine_name.c_str());
 572                 }
 573         }
 574 }
 575
 576 void CWakeupEngineManager::engine_add_wakeup_word(string appid, string wakeup_word, string language)
 577 {
 578         for (const auto& info : mEngineInfo) {
 579                 bool found = contains(info.assistant_list, appid);
 580                 if (found) {
 581                         if (info.interface.add_wakeup_word) {
 582                                 try {
 583                                         info.interface.add_wakeup_word(appid.c_str(), wakeup_word.c_str(), language.c_str());
 584                                 } catch (const std::exception& e) {
 585                                         MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 586                                                 info.engine_name.c_str(), e.what());
 587                                 }
 588                         } else {
 589                                 MWR_LOGE("Wakeup Engine does not provide add_wakeup_word");
 590                         }
 591                 }
 592         }
 593 }
 594
 595 void CWakeupEngineManager::engine_remove_wakeup_word(string appid, string wakeup_word, string language)
 596 {
 597         for (const auto& info : mEngineInfo) {
 598                 bool found = contains(info.assistant_list, appid);
 599                 if (found) {
 600                         if (info.interface.remove_wakeup_word) {
 601                                 try {
 602                                         info.interface.remove_wakeup_word(appid.c_str(), wakeup_word.c_str(), language.c_str());
 603                                 } catch (const std::exception& e) {
 604                                         MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 605                                                 info.engine_name.c_str(), e.what());
 606                                 }
 607                         } else {
 608                                 MWR_LOGE("Wakeup Engine does not provide remove_wakeup_word");
 609                         }
 610                 }
 611         }
 612 }
 613
 614 void CWakeupEngineManager::engine_set_assistant_specific_command(string appid, string command)
 615 {
 616         for (const auto& info : mEngineInfo) {
 617                 bool found = contains(info.assistant_list, appid);
 618                 if (found) {
 619                         if (info.interface.set_assistant_specific_command) {
 620                                 try {
 621                                         info.interface.set_assistant_specific_command(appid.c_str(), command.c_str());
 622                                 } catch (const std::exception& e) {
 623                                         MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 624                                                 info.engine_name.c_str(), e.what());
 625                                 }
 626                         }
 627                 }
 628         }
 629 }
 630
 631 void CWakeupEngineManager::engine_feed_audio_data(long time, void* data, int len)
 632 {
 633         for (const auto& info : mEngineInfo) {
 634                 if (info.activated &&
 635                         info.audio_data_require_status &&
 636                         info.interface.feed_audio_data) {
 637                         try {
 638                                 bool filtered_out = false;
 639                                 /* After a wakeup event, wakeup engines other than the selected one
 640                                    does not need to receive audio data. */
 641                                 if (WAKEUP_MANAGER_STATE_UTTERANCE == mWakeupManagerState) {
 642                                         if (mSelectedEngine && &info != mSelectedEngine) {
 643                                                 filtered_out = true;
 644                                         }
 645                                 }
 646                                 if (!filtered_out) {
 647                                         int ret = info.interface.feed_audio_data(time, data, len);
 648                                         if (0 != ret) {
 649                                                 LOGE("[ERROR] Fail to feed speech data, ret(%d) : %s", ret, info.engine_name.c_str());
 650                                         }
 651                                 }
 652                         } catch (const std::exception& e) {
 653                                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 654                                         info.engine_name.c_str(), e.what());
 655                         }
 656                 }
 657         }
 658 }
 659
 660 void CWakeupEngineManager::engine_set_dependency_module_command(string engine_name, string command)
 661 {
 662         const auto& iter = find_if(mEngineInfo.begin(), mEngineInfo.end(),
 663                 [engine_name](const EngineInfo& info) {
 664                         return (0 == info.engine_name.compare(engine_name));
 665                 });
 666
 667         if (mEngineInfo.end() != iter) {
 668                 if (iter->activated &&
 669                         iter->interface.set_dependency_module_command) {
 670                         try {
 671                                 int ret = iter->interface.set_dependency_module_command(command.c_str());
 672                                 if (0 != ret) {
 673                                         LOGE("[ERROR] Fail to set dependency module command, ret(%d) : %s",
 674                                                 ret, iter->engine_name.c_str());
 675                                 }
 676                         } catch (const std::exception& e) {
 677                                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 678                                         iter->engine_name.c_str(), e.what());
 679                         }
 680                 }
 681         }
 682 }
 683
 684 bool CWakeupEngineManager::on_wakeup_event(string engine_name, mas_wakeup_event_info info)
 685 {
 686         MWR_LOGD("[ENTER]");
 687
 688         for (const auto& observer : mObservers) {
 689                 if (observer) {
 690                         if (!observer->on_wakeup_event(engine_name, info)) {
 691                                 LOGE("[Recorder WARNING] One of the observer returned false");
 692                         }
 693                 }
 694         }
 695
 696         return true;
 697 }
 698
 699 bool CWakeupEngineManager::on_speech_status(string engine_name, mas_speech_status_e status)
 700 {
 701         MWR_LOGD("[ENTER]");
 702
 703         for (const auto& observer : mObservers) {
 704                 if (observer) {
 705                         if (!observer->on_speech_status(engine_name, status)) {
 706                                 LOGE("[Recorder WARNING] One of the observer returned false");
 707                         }
 708                 }
 709         }
 710
 711         return true;
 712 }
 713
 714 bool CWakeupEngineManager::on_error(string engine_name, int error_code, string error_message)
 715 {
 716         MWR_LOGD("[ENTER]");
 717
 718         for (const auto& observer : mObservers) {
 719                 if (observer) {
 720                         if (!observer->on_error(engine_name, error_code, error_message)) {
 721                                 LOGE("[Recorder WARNING] One of the observer returned false");
 722                         }
 723                 }
 724         }
 725
 726         return true;
 727 }
 728
 729 bool CWakeupEngineManager::on_audio_data_require_status(string engine_name, bool require)
 730 {
 731         MWR_LOGI("[ENTER] %s, %d", engine_name.c_str(), require);
 732
 733         bool found = false;
 734         // LOCK REQUIRED
 735         int count = 0;
 736         for (auto& info : mEngineInfo) {
 737                 if (info.engine_name.compare(engine_name) == 0) {
 738                         found = true;
 739                         info.audio_data_require_status = require;
 740                 }
 741                 if (info.activated && info.audio_data_require_status) {
 742                         count++;
 743                 }
 744         }
 745         MWR_LOGD("count : %d", count);
 746         if (count > 0) {
 747                 mAudioDataRequired = true;
 748         } else {
 749                 mAudioDataRequired = false;
 750         }
 751
 752         if (found) {
 753                 for (const auto& observer : mObservers) {
 754                         if (observer) {
 755                                 if (!observer->on_audio_data_require_status(engine_name, require)) {
 756                                         LOGE("[Recorder WARNING] One of the observer returned false");
 757                                 }
 758                         }
 759                 }
 760         }
 761         // UNLOCK REQUIRED
 762         return true;
 763 }
 764
 765 bool CWakeupEngineManager::on_wakeup_engine_command(string engine_name, mas_wakeup_engine_command_target_e target, string assistant_name, string command)
 766 {
 767         MWR_LOGI("[ENTER] : %s %d %s %s",
 768                 engine_name.c_str(), target, assistant_name.c_str(), command.c_str());
 769
 770         for (const auto& observer : mObservers) {
 771                 if (observer) {
 772                         if (MAS_WAKEUP_ENGINE_COMMAND_TARGET_DEPENDENCY_MODULE == target) {
 773                                 if (!observer->on_wakeup_engine_command(target, engine_name, assistant_name, command)) {
 774                                         LOGE("[Recorder WARNING] One of the observer returned false");
 775                                 }
 776                         } else {
 777                                 const auto& iter = find_if(mEngineInfo.begin(), mEngineInfo.end(),
 778                                         [engine_name](const EngineInfo& info) {
 779                                                 return (0 == info.engine_name.compare(engine_name));
 780                                         });
 781                                 if (mEngineInfo.end() != iter) {
 782                                         for (const auto& assistant : iter->assistant_list) {
 783                                                 if (0 == assistant_name.compare(assistant) ||
 784                                                         MAS_WAKEUP_ENGINE_COMMAND_TARGET_ALL_ASSISTANTS == target) {
 785                                                                 MWR_LOGI("Calling on_wakeup_engine_command for %s", assistant.c_str());
 786                                                         if (!observer->on_wakeup_engine_command(target, engine_name, assistant, command)) {
 787                                                                 LOGE("[Recorder WARNING] One of the observer returned false");
 788                                                         }
 789                                                 }
 790                                         }
 791                                 }
 792                         }
 793                 }
 794         }
 795
 796         return true;
 797 }
 798
 799 void CWakeupEngineManager::add_engine(string name, string path)
 800 {
 801         MWR_LOGD("Name (%s), Filepath(%s)", name.c_str(), path.c_str());
 802
 803         char* error = NULL;
 804         EngineInfo info;
 805         info.engine_handle = dlopen(path.c_str(), RTLD_LAZY);
 806         if (nullptr != (error = dlerror()) || nullptr == info.engine_handle) {
 807                 MWR_LOGD("[ERROR] Fail to dlopen(%s), error(%s)", path.c_str(), error);
 808                 if (info.engine_handle) dlclose(info.engine_handle);
 809                 return;
 810         }
 811
 812         /* Interfaces without version information */
 813         info.interface.initialize =
 814                 (wakeup_engine_initialize)dlsym(info.engine_handle,
 815                 MA_WAKEUP_ENGINE_FUNC_INITIALIZE);
 816         info.interface.deinitialize =
 817                 (wakeup_engine_deinitialize)dlsym(info.engine_handle,
 818                 MA_WAKEUP_ENGINE_FUNC_DEINITIALIZE);
 819         info.interface.activate =
 820                 (wakeup_engine_activate)dlsym(info.engine_handle,
 821                 MA_WAKEUP_ENGINE_FUNC_ACTIVATE);
 822         info.interface.deactivate =
 823                 (wakeup_engine_deactivate)dlsym(info.engine_handle,
 824                 MA_WAKEUP_ENGINE_FUNC_DEACTIVATE);
 825         info.interface.add_wakeup_word =
 826                 (wakeup_engine_add_wakeup_word)dlsym(info.engine_handle,
 827                 MA_WAKEUP_ENGINE_FUNC_ADD_WAKEUP_WORD);
 828         info.interface.remove_wakeup_word =
 829                 (wakeup_engine_remove_wakeup_word)dlsym(info.engine_handle,
 830                 MA_WAKEUP_ENGINE_FUNC_REMOVE_WAKEUP_WORD);
 831         info.interface.add_language =
 832                 (wakeup_engine_add_language)dlsym(info.engine_handle,
 833                 MA_WAKEUP_ENGINE_FUNC_ADD_LANGUAGE);
 834         info.interface.set_language =
 835                 (wakeup_engine_set_language)dlsym(info.engine_handle,
 836                 MA_WAKEUP_ENGINE_FUNC_SET_LANGUAGE);
 837         info.interface.update_manager_state =
 838                 (wakeup_engine_update_manager_state)dlsym(info.engine_handle,
 839                 MA_WAKEUP_ENGINE_FUNC_UPDATE_MANAGER_STATE);
 840         info.interface.update_recognition_result =
 841                 (wakeup_engine_update_recognition_result)dlsym(info.engine_handle,
 842                 MA_WAKEUP_ENGINE_FUNC_UPDATE_RECOGNITION_RESULT);
 843         info.interface.set_audio_format =
 844                 (wakeup_engine_set_audio_format)dlsym(info.engine_handle,
 845                 MA_WAKEUP_ENGINE_FUNC_SET_AUDIO_FORMAT);
 846         info.interface.get_audio_format =
 847                 (wakeup_engine_get_audio_format)dlsym(info.engine_handle,
 848                 MA_WAKEUP_ENGINE_FUNC_GET_AUDIO_FORMAT);
 849         info.interface.feed_audio_data =
 850                 (wakeup_engine_feed_audio_data)dlsym(info.engine_handle,
 851                 MA_WAKEUP_ENGINE_FUNC_FEED_AUDIO_DATA);
 852         info.interface.get_utterance_data_count =
 853                 (wakeup_engine_get_utterance_data_count)dlsym(info.engine_handle,
 854                 MA_WAKEUP_ENGINE_FUNC_GET_UTTERANCE_DATA_COUNT);
 855         info.interface.get_utterance_data =
 856                 (wakeup_engine_get_utterance_data)dlsym(info.engine_handle,
 857                 MA_WAKEUP_ENGINE_FUNC_GET_UTTERANCE_DATA);
 858         info.interface.get_wake_word_data_count =
 859                 (wakeup_engine_get_wake_word_data_count)dlsym(info.engine_handle,
 860                 MA_WAKEUP_ENGINE_FUNC_GET_WAKE_WORD_DATA_COUNT);
 861         info.interface.get_wake_word_data =
 862                 (wakeup_engine_get_wake_word_data)dlsym(info.engine_handle,
 863                 MA_WAKEUP_ENGINE_FUNC_GET_WAKE_WORD_DATA);
 864         info.interface.set_assistant_specific_command =
 865                 (wakeup_engine_set_assistant_specific_command)dlsym(info.engine_handle,
 866                 MA_WAKEUP_ENGINE_FUNC_SET_ASSISTANT_SPECIFIC_COMMAND);
 867         info.interface.set_wake_word_audio_require_flag =
 868                 (wakeup_engine_set_wake_word_audio_require_flag)dlsym(info.engine_handle,
 869                 MA_WAKEUP_ENGINE_FUNC_SET_WAKE_WORD_AUDIO_REQUIRE_FLAG);
 870         info.interface.set_wakeup_event_callback =
 871                 (wakeup_engine_set_wakeup_event_callback)dlsym(info.engine_handle,
 872                 MA_WAKEUP_ENGINE_FUNC_SET_WAKEUP_EVENT_CALLBACK);
 873         info.interface.set_speech_status_callback =
 874                 (wakeup_engine_set_speech_status_callback)dlsym(info.engine_handle,
 875                 MA_WAKEUP_ENGINE_FUNC_SET_SPEECH_STATUS_CALLBACK);
 876         info.interface.set_error_callback =
 877                 (wakeup_engine_set_error_callback)dlsym(info.engine_handle,
 878                 MA_WAKEUP_ENGINE_FUNC_SET_ERROR_CALLBACK);
 879         info.interface.set_audio_data_require_status_callback =
 880                 (wakeup_engine_set_audio_data_require_status_callback)dlsym(info.engine_handle,
 881                 MA_WAKEUP_ENGINE_FUNC_SET_AUDIO_DATA_REQUIRE_STATUS_CALLBACK);
 882         info.interface.set_wakeup_engine_command_callback =
 883                 (wakeup_engine_set_wakeup_engine_command_callback)dlsym(info.engine_handle,
 884                 MA_WAKEUP_ENGINE_FUNC_SET_WAKEUP_ENGINE_COMMAND_CALLBACK);
 885
 886         /* Interfaces after version 1 */
 887         info.interface.get_version =
 888                 (wakeup_engine_get_version)dlsym(info.engine_handle,
 889                 MA_WAKEUP_ENGINE_FUNC_GET_VERSION);
 890         info.interface.set_dependency_module_command =
 891                 (wakeup_engine_set_dependency_module_command)dlsym(info.engine_handle,
 892                 MA_WAKEUP_ENGINE_FUNC_SET_DEPENDENCY_MODULE_COMMAND);
 893
 894         info.version = 0;
 895         info.engine_path = path;
 896         info.engine_name = name;
 897
 898         info.activated = false;
 899         info.audio_data_require_status = false;
 900
 901         /* All the necessary information has already been set properly */
 902         mEngineInfo.push_back(info);
 903
 904         /* Workaround for registering C-style callbacks */
 905         typedef struct {
 906                 CWakeupEngineManager *manager;
 907                 string engine_name;
 908         } CallbackUserData;
 909
 910         static deque<CallbackUserData> callback_user_data;
 911
 912         CallbackUserData user_data;
 913         user_data.manager = this;
 914         user_data.engine_name = info.engine_name;
 915         callback_user_data.push_back(user_data);
 916
 917         MWR_LOGI("Initializing wakeup engine : %s %p %p",
 918                 info.engine_path.c_str(),
 919                 info.interface.initialize,
 920                 &callback_user_data.back());
 921
 922         try {
 923                 if (info.interface.set_wakeup_event_callback) {
 924                         info.interface.set_wakeup_event_callback(
 925                                 [](mas_wakeup_event_info info, void* user_data) {
 926                                         MWR_LOGI("user_data : %p", user_data);
 927                                         CallbackUserData *data = static_cast<CallbackUserData*>(user_data);
 928                                         if (nullptr == data) return;
 929                                         if (nullptr == data->manager) return;
 930                                         info.wakeup_engine = data->engine_name.c_str();
 931                                         data->manager->on_wakeup_event(data->engine_name, info);
 932                                 }, &(callback_user_data.back()));
 933                 }
 934
 935                 if (info.interface.set_audio_data_require_status_callback) {
 936                         info.interface.set_audio_data_require_status_callback(
 937                                 [](bool require, void* user_data) {
 938                                         MWR_LOGI("user_data : %p", user_data);
 939                                         CallbackUserData *data = static_cast<CallbackUserData*>(user_data);
 940                                         if (nullptr == data) return;
 941                                         if (nullptr == data->manager) return;
 942                                         data->manager->on_audio_data_require_status(data->engine_name, require);
 943                                 }, &(callback_user_data.back()));
 944                 }
 945
 946                 if (info.interface.set_wakeup_engine_command_callback) {
 947                         info.interface.set_wakeup_engine_command_callback(
 948                                 [](mas_wakeup_engine_command_target_e target,
 949                                         const char* assistant_name, const char* command, void* user_data) {
 950                                         MWR_LOGI("user_data : %p", user_data);
 951                                         CallbackUserData* data = static_cast<CallbackUserData*>(user_data);
 952                                         if (nullptr == data) return;
 953                                         if (nullptr == data->manager) return;
 954                                         if (nullptr == command) return;
 955                                         data->manager->on_wakeup_engine_command(
 956                                                 data->engine_name, target, (assistant_name ? assistant_name : ""), command);
 957                                 }, &(callback_user_data.back()));
 958                 }
 959
 960                 if (info.interface.initialize) {
 961                         info.interface.initialize();
 962                 }
 963                 if (info.interface.get_version) {
 964                         int version;
 965                         if (0 == info.interface.get_version(&version)) {
 966                                 info.version = version;
 967                         }
 968                 }
 969         } catch (const std::exception& e) {
 970                 MWR_LOGE("[ERROR] wakeup engine %s threw exception : %s",
 971                         info.engine_name.c_str(), e.what());
 972         }
 973 }
 974
 975 void CWakeupEngineManager::add_engine_directory(string name, string path)
 976 {
 977         if (0 == path.size()) return;
 978
 979         DIR* dp = opendir(path.c_str());
 980         if (NULL == dp) {
 981                 MWR_LOGD("Failed opening directory : %s", path.c_str());
 982         } else {
 983                 struct dirent *dirp = NULL;
 984                 string filepath;
 985                 do {
 986                         dirp = readdir(dp);
 987
 988                         if (NULL != dirp) {
 989                                 if (!strcmp(".", dirp->d_name) || !strcmp("..", dirp->d_name))
 990                                         continue;
 991
 992                                 if (DT_REG != dirp->d_type) /* If not a regular file */
 993                                         continue;
 994
 995                                 filepath = path;
 996                                 filepath += "/";
 997                                 filepath += dirp->d_name;
 998
 999                                 if (filepath.length() >= _POSIX_PATH_MAX) {
1000                                         MWR_LOGD("File path is too long : %s", filepath.c_str());
1001                                         closedir(dp);
1002                                         return;
1003                                 }
1004                                 add_engine(name, filepath);
1005                         }
1006                 } while (NULL != dirp);
1007
1008                 closedir(dp);
1009         }
1010 }
1011
1012 } // wakeup
1013 } // multiassistant