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 INTERRUPT_MONITOR_H 17 #define INTERRUPT_MONITOR_H 18 19 #include "interrupt_listener.h" 20 #include <vector> 21 #include <mutex> 22 23 namespace OHOS { 24 25 namespace Media { 26 class InterruptMonitor { 27 public: 28 void SetInterruptState(bool isInterruptNeeded); 29 void RegisterListener(const std::shared_ptr<InterruptListener> listener); 30 void DeregisterListener(const std::shared_ptr<InterruptListener> listener); 31 void CleanUnusedListener(); 32 private: 33 void NotifyInterrupt(bool isInterruptNeeded); 34 std::atomic<bool> interruptState_ = false; 35 std::vector<std::weak_ptr<InterruptListener>> vec_{}; 36 std::mutex mutex_; 37 }; 38 } // namespace Media 39 40 } // namespace OHOS 41 #endif