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/*
* Copyright (C) 2021 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 <PowerStats.h>
#include <random>
namespace aidl {
namespace android {
namespace hardware {
namespace power {
namespace stats {
class FakeStateResidencyDataProvider : public PowerStats::IStateResidencyDataProvider {
public:
FakeStateResidencyDataProvider(const std::string& name, std::vector<State> states)
: mName(name), mStates(states) {
for (const auto& state : mStates) {
StateResidency r;
r.id = state.id;
r.totalTimeInStateMs = 0;
r.totalStateEntryCount = 0;
r.lastEntryTimestampMs = 0;
mResidencies.push_back(r);
}
}
~FakeStateResidencyDataProvider() = default;
// Methods from PowerStats::IStateResidencyDataProvider
bool getStateResidencies(
std::unordered_map<std::string, std::vector<StateResidency>>* residencies) override {
for (auto& residency : mResidencies) {
mFakeStateResidency.update(&residency);
}
residencies->emplace(mName, mResidencies);
return true;
}
std::unordered_map<std::string, std::vector<State>> getInfo() override {
return {{mName, mStates}};
}
private:
class FakeStateResidency {
public:
FakeStateResidency() : mDistribution(1, 100) {}
void update(StateResidency* residency) {
// generates number in the range 1..100
auto randNum = std::bind(mDistribution, mGenerator);
residency->totalTimeInStateMs += randNum() * 100;
residency->totalStateEntryCount += randNum();
residency->lastEntryTimestampMs += randNum() * 100;
}
private:
std::default_random_engine mGenerator;
std::uniform_int_distribution<int> mDistribution;
};
const std::string mName;
const std::vector<State> mStates;
FakeStateResidency mFakeStateResidency;
std::vector<StateResidency> mResidencies;
};
} // namespace stats
} // namespace power
} // namespace hardware
} // namespace android
} // namespace aidl
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