1 /*
2 * Copyright (C) 2022 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <battery_mitigation/BatteryMitigation.h>
18
19 #include <sstream>
20
21 #define MAX_BROWNOUT_DATA_AGE_SECONDS 300
22
23 namespace android {
24 namespace hardware {
25 namespace google {
26 namespace pixel {
27
BatteryMitigation(const struct MitigationConfig::Config & cfg)28 BatteryMitigation::BatteryMitigation(const struct MitigationConfig::Config &cfg) {
29 mThermalMgr = &MitigationThermalManager::getInstance();
30 mThermalMgr->updateConfig(cfg);
31 }
32
isMitigationLogTimeValid(std::chrono::system_clock::time_point startTime,const char * const logFilePath,const char * const timestampFormat,const std::regex pattern)33 bool BatteryMitigation::isMitigationLogTimeValid(std::chrono::system_clock::time_point startTime,
34 const char *const logFilePath,
35 const char *const timestampFormat,
36 const std::regex pattern) {
37 std::string logFile;
38 if (!android::base::ReadFileToString(logFilePath, &logFile)) {
39 return false;
40 }
41 std::istringstream content(logFile);
42 std::string line;
43 int counter = 0;
44 std::smatch pattern_match;
45 while (std::getline(content, line)) {
46 if (std::regex_match(line, pattern_match, pattern)) {
47 std::tm triggeredTimestamp = {};
48 std::istringstream ss(pattern_match.str());
49 ss >> std::get_time(&triggeredTimestamp, timestampFormat);
50 auto logFileTime = std::chrono::system_clock::from_time_t(mktime(&triggeredTimestamp));
51 auto delta = std::chrono::duration_cast<std::chrono::seconds>(startTime - logFileTime);
52 if ((delta.count() < MAX_BROWNOUT_DATA_AGE_SECONDS) && (delta.count() > 0)) {
53 return true;
54 }
55 }
56 counter += 1;
57 if (counter > 5) {
58 break;
59 }
60 }
61 return false;
62 }
63
64 } // namespace pixel
65 } // namespace google
66 } // namespace hardware
67 } // namespace android
68