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108 lines
3.9 KiB
108 lines
3.9 KiB
/*
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* Copyright (C) 2018 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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// TODO(b/167628903): Delete this file
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#define LOG_TAG "libpixelpowerstats"
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#include <android-base/logging.h>
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#include <android-base/properties.h>
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#include <pixelpowerstats/PowerStatsUtils.h>
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#include <pixelpowerstats/WlanStateResidencyDataProvider.h>
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#include <cstdio>
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#include <cstring>
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namespace android {
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namespace hardware {
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namespace google {
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namespace pixel {
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namespace powerstats {
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const uint32_t ACTIVE_ID = 0;
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const uint32_t DEEPSLEEP_ID = 1;
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WlanStateResidencyDataProvider::WlanStateResidencyDataProvider(uint32_t id, std::string path)
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: mPath(std::move(path)), mPowerEntityId(id) {}
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bool WlanStateResidencyDataProvider::getResults(
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std::unordered_map<uint32_t, PowerEntityStateResidencyResult> &results) {
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PowerEntityStateResidencyResult result = {
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.powerEntityId = mPowerEntityId,
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.stateResidencyData = {{.powerEntityStateId = ACTIVE_ID},
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{.powerEntityStateId = DEEPSLEEP_ID}}};
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std::string wlanDriverStatus = android::base::GetProperty("wlan.driver.status", "unloaded");
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if (wlanDriverStatus != "ok") {
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LOG(DEBUG) << __func__ << ": wlan is " << wlanDriverStatus;
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// Return 0s for Wlan stats, because the driver is unloaded
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results.insert(std::make_pair(mPowerEntityId, result));
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return true;
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}
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// Using FILE* instead of std::ifstream for performance reasons (b/122253123)
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std::unique_ptr<FILE, decltype(&fclose)> fp(fopen(mPath.c_str(), "r"), fclose);
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if (!fp) {
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PLOG(ERROR) << __func__ << ":Failed to open file " << mPath;
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return false;
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}
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size_t numFieldsRead = 0;
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const size_t numFields = 4;
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size_t len = 0;
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char *line = nullptr;
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while ((numFieldsRead < numFields) && (getline(&line, &len, fp.get()) != -1)) {
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uint64_t stat = 0;
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if (utils::extractStat(line, "cumulative_sleep_time_ms:", stat)) {
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result.stateResidencyData[1].totalTimeInStateMs = stat;
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++numFieldsRead;
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} else if (utils::extractStat(line, "cumulative_total_on_time_ms:", stat)) {
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result.stateResidencyData[0].totalTimeInStateMs = stat;
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++numFieldsRead;
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} else if (utils::extractStat(line, "deep_sleep_enter_counter:", stat)) {
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result.stateResidencyData[0].totalStateEntryCount = stat;
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result.stateResidencyData[1].totalStateEntryCount = stat;
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++numFieldsRead;
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} else if (utils::extractStat(line, "last_deep_sleep_enter_tstamp_ms:", stat)) {
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result.stateResidencyData[1].lastEntryTimestampMs = stat;
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++numFieldsRead;
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}
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}
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free(line);
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// End of file was reached and not all state data was parsed. Something
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// went wrong
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if (numFieldsRead != numFields) {
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LOG(ERROR) << __func__ << ": failed to parse stats for wlan";
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return false;
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}
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results.insert(std::make_pair(mPowerEntityId, result));
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return true;
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}
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std::vector<PowerEntityStateSpace> WlanStateResidencyDataProvider::getStateSpaces() {
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return {
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{.powerEntityId = mPowerEntityId,
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.states = {{.powerEntityStateId = ACTIVE_ID, .powerEntityStateName = "Active"},
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{.powerEntityStateId = DEEPSLEEP_ID, .powerEntityStateName = "Deep-Sleep"}}}};
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}
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} // namespace powerstats
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} // namespace pixel
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} // namespace google
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} // namespace hardware
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} // namespace android
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