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/*
* Copyright (C) 2022 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 <battery_mitigation/BatteryMitigation.h>
#include <sstream>
#define MAX_BROWNOUT_DATA_AGE_SECONDS 300
namespace android {
namespace hardware {
namespace google {
namespace pixel {
BatteryMitigation::BatteryMitigation(const struct MitigationConfig::Config &cfg) {
mThermalMgr = &MitigationThermalManager::getInstance();
mThermalMgr->updateConfig(cfg);
}
bool BatteryMitigation::isMitigationLogTimeValid(std::chrono::system_clock::time_point startTime,
const char *const logFilePath,
const char *const timestampFormat,
const std::regex pattern) {
std::string logFile;
if (!android::base::ReadFileToString(logFilePath, &logFile)) {
return false;
}
std::istringstream content(logFile);
std::string line;
int counter = 0;
std::smatch pattern_match;
while (std::getline(content, line)) {
if (std::regex_match(line, pattern_match, pattern)) {
std::tm triggeredTimestamp = {};
std::istringstream ss(pattern_match.str());
ss >> std::get_time(&triggeredTimestamp, timestampFormat);
auto logFileTime = std::chrono::system_clock::from_time_t(mktime(&triggeredTimestamp));
auto delta = std::chrono::duration_cast<std::chrono::seconds>(startTime - logFileTime);
if ((delta.count() < MAX_BROWNOUT_DATA_AGE_SECONDS) && (delta.count() > 0)) {
return true;
}
}
counter += 1;
if (counter > 5) {
break;
}
}
return false;
}
} // namespace pixel
} // namespace google
} // namespace hardware
} // namespace android
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