124 lines
4.6 KiB
C++
124 lines
4.6 KiB
C++
/*
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* Copyright (C) 2019 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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#define LOG_TAG "pwrstats_util"
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#include "RailEnergyDataProvider.h"
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#include <android-base/logging.h>
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#include <android/hardware/power/stats/1.0/IPowerStats.h>
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using android::sp;
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using android::hardware::Return;
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using android::hardware::power::stats::V1_0::IPowerStats;
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using android::hardware::power::stats::V1_0::Status;
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int RailEnergyDataProvider::getImpl(PowerStatistic* stat) const {
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sp<android::hardware::power::stats::V1_0::IPowerStats> powerStatsService =
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android::hardware::power::stats::V1_0::IPowerStats::getService();
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if (powerStatsService == nullptr) {
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LOG(ERROR) << "unable to get power.stats HAL service";
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return 1;
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}
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std::unordered_map<uint32_t, std::string> railNames;
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Return<void> ret;
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Status retStatus = Status::SUCCESS;
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ret = powerStatsService->getRailInfo([&railNames, &retStatus](auto railInfos, auto status) {
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retStatus = status;
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if (status != Status::SUCCESS) {
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return;
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}
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for (auto const& info : railInfos) {
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railNames.emplace(info.index, info.railName);
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}
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});
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if (retStatus == Status::NOT_SUPPORTED) {
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LOG(WARNING) << __func__ << ": rail energy stats not supported";
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return 0;
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}
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if (!ret.isOk() || retStatus != Status::SUCCESS) {
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LOG(ERROR) << __func__ << ": no rail information available";
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return 1;
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}
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auto railEntries = stat->mutable_rail_energy();
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bool resultSuccess = true;
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ret = powerStatsService->getEnergyData(
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{}, [&railEntries, &railNames, &resultSuccess](auto energyData, auto status) {
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if (status != Status::SUCCESS) {
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LOG(ERROR) << __func__ << ": unable to get rail energy";
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resultSuccess = false;
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return;
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}
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for (auto const& energyDatum : energyData) {
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auto entry = railEntries->add_entry();
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entry->set_rail_name(railNames.at(energyDatum.index));
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entry->set_energy_uws(energyDatum.energy);
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}
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});
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if (!ret.isOk() || !resultSuccess) {
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stat->clear_rail_energy();
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LOG(ERROR) << __func__ << ": failed to get rail energy stats";
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return 1;
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}
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// Sort entries by name. Sorting is needed to make interval processing efficient.
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std::sort(railEntries->mutable_entry()->begin(), railEntries->mutable_entry()->end(),
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[](const auto& a, const auto& b) { return a.rail_name() < b.rail_name(); });
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return 0;
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}
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int RailEnergyDataProvider::getImpl(const PowerStatistic& start, PowerStatistic* interval) const {
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auto startEnergy = start.rail_energy().entry();
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auto intervalEnergy = interval->mutable_rail_energy()->mutable_entry();
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// If start and interval are not the same size then they cannot have matching data
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if (startEnergy.size() != intervalEnergy->size()) {
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LOG(ERROR) << __func__ << ": mismatched data";
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interval->clear_rail_energy();
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return 1;
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}
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for (int i = 0; i < startEnergy.size(); ++i) {
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// Check and make sure each entry matches. Data are in sorted order so if there is a
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// mismatch then we will bail.
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if (startEnergy.Get(i).rail_name() != intervalEnergy->Get(i).rail_name()) {
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LOG(ERROR) << __func__ << ": mismatched data";
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interval->clear_rail_energy();
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return 1;
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}
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auto delta = intervalEnergy->Get(i).energy_uws() - startEnergy.Get(i).energy_uws();
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intervalEnergy->Mutable(i)->set_energy_uws(delta);
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}
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return 0;
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}
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void RailEnergyDataProvider::dumpImpl(const PowerStatistic& stat, std::ostream* output) const {
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*output << "Rail Energy:" << std::endl;
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for (auto const& rail : stat.rail_energy().entry()) {
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*output << rail.rail_name() << "=" << rail.energy_uws() << std::endl;
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}
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*output << std::endl;
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}
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PowerStatCase RailEnergyDataProvider::typeOf() const {
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return PowerStatCase::kRailEnergy;
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}
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