1 /* 2 * Copyright (c) 2020, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef CPP_POWERPOLICY_SERVER_SRC_POWERCOMPONENTHANDLER_H_ 18 #define CPP_POWERPOLICY_SERVER_SRC_POWERCOMPONENTHANDLER_H_ 19 20 #include <android-base/result.h> 21 #include <android/frameworks/automotive/powerpolicy/CarPowerPolicy.h> 22 #include <utils/Mutex.h> 23 24 #include <memory> 25 #include <unordered_map> 26 27 namespace android { 28 namespace frameworks { 29 namespace automotive { 30 namespace powerpolicy { 31 32 using CarPowerPolicyPtr = std::shared_ptr<CarPowerPolicy>; 33 34 class PowerComponentHandler final { 35 public: PowerComponentHandler()36 PowerComponentHandler() {} 37 38 // Sets the initial state of all power components. 39 void init(); 40 // Applies the given power policy and updates the latest state of all power components. 41 void applyPowerPolicy(const CarPowerPolicyPtr& powerPolicy); 42 // Gets the current state of the given power component. 43 android::base::Result<bool> getPowerComponentState(const PowerComponent componentId) const; 44 // Gets the accumulated state of all components after applying power policies. 45 CarPowerPolicyPtr getAccumulatedPolicy() const; 46 // Dumps the internal status. 47 android::base::Result<void> dump(int fd); 48 49 private: 50 mutable android::Mutex mMutex; 51 CarPowerPolicyPtr mAccumulatedPolicy GUARDED_BY(mMutex); 52 }; 53 54 } // namespace powerpolicy 55 } // namespace automotive 56 } // namespace frameworks 57 } // namespace android 58 59 #endif // CPP_POWERPOLICY_SERVER_SRC_POWERCOMPONENTHANDLER_H_ 60