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/*
* Copyright (C) 2023 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.
*/
#include "AdaptiveDvfsStateResidencyDataProvider.h"
#include <android-base/logging.h>
#include <android-base/parseint.h>
#include <android-base/strings.h>
#include <string>
#include <utility>
using android::base::Split;
using android::base::Trim;
static const std::string pathSuffix = "/time_in_state";
static const std::string stateSuffix = "MHz";
namespace aidl {
namespace android {
namespace hardware {
namespace power {
namespace stats {
AdaptiveDvfsStateResidencyDataProvider::AdaptiveDvfsStateResidencyDataProvider(
std::string path,
uint64_t clockRate,
std::vector<std::pair<std::string, std::string>> powerEntities)
: DvfsStateResidencyDataProvider(path, clockRate, {}) {
size_t len = 0;
char *line = nullptr;
std::vector<std::pair<std::string, std::string>> states = {};
std::vector<std::string> parts;
for (int32_t i = 0; i < powerEntities.size(); i++) {
std::string freqPath = powerEntities[i].second + pathSuffix;
std::unique_ptr<FILE, decltype(&fclose)> fp(fopen(freqPath.c_str(), "r"), fclose);
if (!fp) {
PLOG(ERROR) << __func__ << ":Failed to open file " << freqPath;
continue;
}
while (getline(&line, &len, fp.get()) != -1) {
parts = Split(Trim(std::string(line)), " ");
if (parts.size() > 0) {
std::string freqStr = Trim(parts[0]);
states.push_back(std::make_pair(
freqStr.substr(0, freqStr.length() - 3) + stateSuffix,
freqStr));
}
}
mPowerEntities.push_back({powerEntities[i].first, std::move(states)});
}
free(line);
}
bool AdaptiveDvfsStateResidencyDataProvider::getStateResidencies(
std::unordered_map<std::string, std::vector<StateResidency>> *residencies) {
return DvfsStateResidencyDataProvider::getStateResidencies(residencies);
}
std::unordered_map<std::string, std::vector<State>>
AdaptiveDvfsStateResidencyDataProvider::getInfo() {
return DvfsStateResidencyDataProvider::getInfo();
}
} // namespace stats
} // namespace power
} // namespace hardware
} // namespace android
} // namespace aidl
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