1 /* 2 * Copyright (c) 2025 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef DRIVER_STATE_MANAGER_H 17 #define DRIVER_STATE_MANAGER_H 18 19 #include <mutex> 20 #include <optional> 21 22 #include "iservstat_listener_hdi.h" 23 #include "system_ability_listener.h" 24 25 namespace OHOS { 26 namespace UserIam { 27 namespace UserAuth { 28 using ServStatListenerStub = HDI::ServiceManager::V1_0::ServStatListenerStub; 29 class DriverStateManager { 30 public: 31 static DriverStateManager &GetInstance(); 32 using DriverUpdateCallback = std::function<void()>; 33 34 void OnDriverManagerAdd(); 35 void OnDriverManagerRemove(); 36 void OnDriverStart(); 37 void OnDriverStop(); 38 void RegisterDriverStartCallback(const DriverUpdateCallback &callback); 39 void RegisterDriverStopCallback(const DriverUpdateCallback &callback); 40 void StartSubscribe(); 41 42 private: 43 DriverStateManager() = default; 44 ~DriverStateManager() = default; 45 46 bool isSubscribed_ = false; 47 std::recursive_mutex mutex_; 48 sptr<SystemAbilityListener> driverManagerStatusListener_ = nullptr; 49 sptr<ServStatListenerStub> driverStatusListener_ = nullptr; 50 std::optional<bool> isDriverRunning_ {std::nullopt}; 51 std::vector<DriverUpdateCallback> startCallbacks_; 52 std::vector<DriverUpdateCallback> stopCallbacks_; 53 }; 54 } // namespace UserAuth 55 } // namespace UserIam 56 } // namespace OHOS 57 #endif // DRIVER_STATE_MANAGER_H