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