1 #pragma once 2 3 /* 4 * Copyright (C) 2021 The Android Open Source Project 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 #include <array> 20 #include <sstream> 21 22 #include "Model.h" 23 24 namespace aidl { 25 namespace google { 26 namespace hardware { 27 namespace power { 28 namespace impl { 29 namespace pixel { 30 31 class ICpuLoadReader { 32 public: 33 // Initialize reading, must be done before calling other methods. 34 // Work is not done in constructor as it accesses files. 35 virtual bool Init() = 0; 36 // Get the load of each CPU, since the last time this method was called. 37 virtual bool GetRecentCpuLoads( 38 std::array<double, NUM_CPU_CORES> *cpuCoreIdleTimesPercentage) = 0; 39 // Dump internal state to a string stream. Used for dumpsys. 40 virtual void DumpToStream(std::stringstream &stream) const = 0; ~ICpuLoadReader()41 virtual ~ICpuLoadReader() {} 42 }; 43 44 } // namespace pixel 45 } // namespace impl 46 } // namespace power 47 } // namespace hardware 48 } // namespace google 49 } // namespace aidl 50