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83 lines
2.5 KiB
83 lines
2.5 KiB
4 months ago
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/*
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* Copyright (C) 2021 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 <PowerStats.h>
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#include <android-base/chrono_utils.h>
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#include <chrono>
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#include <random>
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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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class FakeEnergyConsumer : public PowerStats::IEnergyConsumer {
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public:
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FakeEnergyConsumer(EnergyConsumerType type, std::string name) : mType(type), mName(name) {
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mResult.timestampMs = 0;
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mResult.energyUWs = 0;
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mResult.attribution = {};
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}
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~FakeEnergyConsumer() = default;
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std::string getName() override { return mName; }
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EnergyConsumerType getType() override { return mType; }
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std::optional<EnergyConsumerResult> getEnergyConsumed() override {
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mFakeEnergyConsumerResult.update(&mResult);
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return mResult;
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}
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private:
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class FakeEnergyConsumerResult {
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public:
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FakeEnergyConsumerResult() : mDistribution(1, 100) {}
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void update(EnergyConsumerResult* result) {
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// generates number in the range 1..100
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auto randNum = std::bind(mDistribution, mGenerator);
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// Get current time since boot in milliseconds
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uint64_t now = std::chrono::time_point_cast<std::chrono::milliseconds>(
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::android::base::boot_clock::now())
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.time_since_epoch()
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.count();
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result->timestampMs = now;
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result->energyUWs += randNum() * 100;
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}
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private:
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std::default_random_engine mGenerator;
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std::uniform_int_distribution<int> mDistribution;
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};
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EnergyConsumerType mType;
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std::string mName;
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FakeEnergyConsumerResult mFakeEnergyConsumerResult;
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EnergyConsumerResult mResult;
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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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