1 /* 2 * Copyright (C) 2019 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 #ifndef POWERSTATSCOLLECTOR_H 17 #define POWERSTATSCOLLECTOR_H 18 19 #include <memory> 20 #include <unordered_map> 21 #include <vector> 22 23 #include <pwrstatsutil.pb.h> 24 25 using com::google::android::pwrstatsutil::PowerStatistic; 26 using PowerStatCase = com::google::android::pwrstatsutil::PowerStatistic::PowerStatCase; 27 28 /** 29 * Classes that inherit from this can be used to provide stats in the form of key/value 30 * pairs to PwrStatsUtil. 31 **/ 32 class IPowerStatProvider { 33 public: 34 virtual ~IPowerStatProvider() = default; 35 int get(PowerStatistic* stat) const; 36 int get(const PowerStatistic& start, PowerStatistic* interval) const; 37 void dump(const PowerStatistic& stat, std::ostream* output) const; 38 virtual PowerStatCase typeOf() const = 0; 39 40 private: 41 virtual int getImpl(PowerStatistic* stat) const = 0; 42 virtual int getImpl(const PowerStatistic& start, PowerStatistic* interval) const = 0; 43 virtual void dumpImpl(const PowerStatistic& stat, std::ostream* output) const = 0; 44 }; 45 46 /** 47 * This class is used to return stats in the form of key/value pairs for all registered classes 48 * that implement IPowerStatProvider. 49 **/ 50 class PowerStatsCollector { 51 public: 52 PowerStatsCollector() = default; 53 int get(std::vector<PowerStatistic>* stats) const; 54 int get(const std::vector<PowerStatistic>& start, std::vector<PowerStatistic>* interval) const; 55 void dump(const std::vector<PowerStatistic>& stats, std::ostream* output) const; 56 void addDataProvider(std::unique_ptr<IPowerStatProvider> statProvider); 57 58 private: 59 std::unordered_map<PowerStatCase, std::unique_ptr<IPowerStatProvider>> mStatProviders; 60 }; 61 62 int run(int argc, char** argv, const PowerStatsCollector& collector); 63 64 #endif // POWERSTATSCOLLECTOR_H 65