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102 lines
4.2 KiB
102 lines
4.2 KiB
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <PowerStatsAidl.h>
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#include "PowerStatsEnergyAttribution.h"
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#include <utils/RefBase.h>
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#include <map>
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#include <set>
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namespace aidl {
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namespace android {
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namespace hardware {
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namespace power {
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namespace stats {
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using ::android::sp;
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/**
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* PowerStatsEnergyConsumer is an energy consumer that can be represented as
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* EnergyConsumed = SUM_i(E_i) + SUM_j(C_j * T_j)
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* where E_i is the energy of channel i of the EnergyMeter and
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* where C_j is the coefficient (in mW) of state j and T_j is the total time (in ms) in state j
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*
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* Factory functions are provided to create PowerStatsEnergyConsumer of three varieties
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* 1. MeterAndEntityConsumer - number of channels is > 0, and there is at least one C_j != 0
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* 2. MeterConsumer - number of channels is > 0, and all C_j = 0
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* 3. EntityConsumer - number of channels is 0, and there is at least one C_j != 0
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*/
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class PowerStatsEnergyConsumer : public PowerStats::IEnergyConsumer {
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public:
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static std::unique_ptr<PowerStatsEnergyConsumer> createMeterConsumer(
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std::shared_ptr<PowerStats> p, EnergyConsumerType type, std::string name,
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std::set<std::string> channelNames);
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static std::unique_ptr<PowerStatsEnergyConsumer> createEntityConsumer(
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std::shared_ptr<PowerStats> p, EnergyConsumerType type, std::string name,
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std::string powerEntityName, std::map<std::string, int32_t> stateCoeffs);
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static std::unique_ptr<PowerStatsEnergyConsumer> createMeterAndEntityConsumer(
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std::shared_ptr<PowerStats> p, EnergyConsumerType type, std::string name,
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std::set<std::string> channelNames, std::string powerEntityName,
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std::map<std::string, int32_t> stateCoeffs);
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static std::unique_ptr<PowerStatsEnergyConsumer> createMeterAndAttrConsumer(
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std::shared_ptr<PowerStats> p, EnergyConsumerType type, std::string name,
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std::set<std::string> channelNames, std::unordered_map<int32_t, std::string> paths,
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std::map<std::string, int32_t> stateCoeffs);
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std::pair<EnergyConsumerType, std::string> getInfo() override { return {kType, kName}; }
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std::optional<EnergyConsumerResult> getEnergyConsumed() override;
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std::string getConsumerName() override;
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private:
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PowerStatsEnergyConsumer(std::shared_ptr<PowerStats> p, EnergyConsumerType type,
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std::string name, bool attr = false);
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bool addEnergyMeter(std::set<std::string> channelNames);
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bool addPowerEntity(std::string powerEntityName, std::map<std::string, int32_t> stateCoeffs);
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bool addAttribution(std::unordered_map<int32_t, std::string> paths,
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std::map<std::string, int32_t> stateCoeffs);
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const EnergyConsumerType kType;
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const std::string kName;
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std::shared_ptr<PowerStats> mPowerStats;
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std::vector<int32_t> mChannelIds;
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int32_t mPowerEntityId;
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bool mWithAttribution;
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std::unordered_map<int32_t, std::string> mAttrInfoPath;
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PowerStatsEnergyAttribution mEnergyAttribution;
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// Snapshot of each uid's energy, uid_time_in_state and total energy from power meter
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// mUidTimeInStateSS: key = uid, val = {uid_time_in_state}
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// mUidEnergySS: key = uid, val = {uid's energy(UWs)}
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// mTotalEnergySS: total energy from power meter
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std::unordered_map<int32_t, std::vector<long>> mUidTimeInStateSS;
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std::unordered_map<int32_t, int64_t> mUidEnergySS;
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int64_t mTotalEnergySS = 0;
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std::map<int32_t, int32_t> mCoefficients; // key = stateId, val = coefficients (mW)
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};
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} // namespace stats
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} // namespace power
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} // namespace hardware
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} // namespace android
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} // namespace aidl
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