Log temperature during OTA update (3ee2b9db) · Commits · e / tools / etwrp

install.cpp

+47 −5

Original line number	Diff line number	Diff line
		@@ -26,11 +26,15 @@
		#include <sys/wait.h>
		#include <unistd.h>

		#include <algorithm>
		#include <chrono>
		#include <condition_variable>
		#include <functional>
		#include <limits>
		#include <map>
		#include <mutex>
		#include <string>
		#include <thread>
		#include <vector>

		#include <android-base/file.h>
		@@ -46,10 +50,13 @@
		#include "error_code.h"
		#include "minui/minui.h"
		#include "otautil/SysUtil.h"
		#include "otautil/ThermalUtil.h"
		#include "roots.h"
		#include "ui.h"
		#include "verifier.h"

		using namespace std::chrono_literals;

		#define ASSUMED_UPDATE_BINARY_NAME "META-INF/com/google/android/update-binary"
		static constexpr const char* AB_OTA_PAYLOAD_PROPERTIES = "payload_properties.txt";
		static constexpr const char* AB_OTA_PAYLOAD = "payload.bin";
		@@ -63,6 +70,8 @@ static constexpr float VERIFICATION_PROGRESS_FRACTION = 0.25;
		static constexpr float DEFAULT_FILES_PROGRESS_FRACTION = 0.4;
		static constexpr float DEFAULT_IMAGE_PROGRESS_FRACTION = 0.1;

		static std::condition_variable finish_log_temperature;

		// This function parses and returns the build.version.incremental
		static int parse_build_number(const std::string& str) {
		size_t pos = str.find('=');
		@@ -299,9 +308,19 @@ update_binary_command(const char* path, ZipArchiveHandle zip, int retry_count,
		}
		#endif // !AB_OTA_UPDATER

		static void log_max_temperature(int* max_temperature) {
		CHECK(max_temperature != nullptr);
		std::mutex mtx;
		std::unique_lock<std::mutex> lck(mtx);
		while (finish_log_temperature.wait_for(lck, 20s) == std::cv_status::timeout) {
		max_temperature = std::max(max_temperature, GetMaxValueFromThermalZone());
		}
		}

		// If the package contains an update binary, extract it and run it.
		static int try_update_binary(const char* path, ZipArchiveHandle zip, bool* wipe_cache,
		std::vector<std::string>& log_buffer, int retry_count) {
		std::vector<std::string>& log_buffer, int retry_count,
		int* max_temperature) {
		read_source_target_build(zip, log_buffer);

		int pipefd[2];
		@@ -392,6 +411,8 @@ static int try_update_binary(const char* path, ZipArchiveHandle zip, bool* wipe_
		}
		close(pipefd[1]);

		std::thread temperature_logger(log_max_temperature, max_temperature);

		*wipe_cache = false;
		bool retry_update = false;

		@@ -453,6 +474,10 @@ static int try_update_binary(const char* path, ZipArchiveHandle zip, bool* wipe_

		int status;
		waitpid(pid, &status, 0);

		finish_log_temperature.notify_one();
		temperature_logger.join();

		if (retry_update) {
		return INSTALL_RETRY;
		}
		@@ -466,7 +491,7 @@ static int try_update_binary(const char* path, ZipArchiveHandle zip, bool* wipe_

		static int
		really_install_package(const char path, bool wipe_cache, bool needs_mount,
		std::vector<std::string>& log_buffer, int retry_count)
		std::vector<std::string>& log_buffer, int retry_count, int* max_temperature)
		{
		ui->SetBackground(RecoveryUI::INSTALLING_UPDATE);
		ui->Print("Finding update package...\n");
		@@ -517,7 +542,7 @@ really_install_package(const char path, bool wipe_cache, bool needs_mount,
		ui->Print("Retry attempt: %d\n", retry_count);
		}
		ui->SetEnableReboot(false);
		int result = try_update_binary(path, zip, wipe_cache, log_buffer, retry_count);
		int result = try_update_binary(path, zip, wipe_cache, log_buffer, retry_count, max_temperature);
		ui->SetEnableReboot(true);
		ui->Print("\n");

		@@ -533,13 +558,17 @@ install_package(const char* path, bool* wipe_cache, const char* install_file,
		modified_flash = true;
		auto start = std::chrono::system_clock::now();

		int start_temperature = GetMaxValueFromThermalZone();
		int max_temperature = start_temperature;

		int result;
		std::vector<std::string> log_buffer;
		if (setup_install_mounts() != 0) {
		LOG(ERROR) << "failed to set up expected mounts for install; aborting";
		result = INSTALL_ERROR;
		} else {
		result = really_install_package(path, wipe_cache, needs_mount, log_buffer, retry_count);
		result = really_install_package(path, wipe_cache, needs_mount, log_buffer, retry_count,
		&max_temperature);
		}

		// Measure the time spent to apply OTA update in seconds.
		@@ -570,8 +599,21 @@ install_package(const char* path, bool* wipe_cache, const char* install_file,
		"time_total: " + std::to_string(time_total),
		"retry: " + std::to_string(retry_count),
		};

		int end_temperature = GetMaxValueFromThermalZone();
		max_temperature = std::max(end_temperature, max_temperature);
		if (start_temperature > 0) {
		log_buffer.push_back("temperature_start: " + std::to_string(start_temperature));
		}
		if (end_temperature > 0) {
		log_buffer.push_back("temperature_end: " + std::to_string(end_temperature));
		}
		if (max_temperature > 0) {
		log_buffer.push_back("temperature_max: " + std::to_string(max_temperature));
		}

		std::string log_content = android::base::Join(log_header, "\n") + "\n" +
		android::base::Join(log_buffer, "\n");
		android::base::Join(log_buffer, "\n") + "\n";
		if (!android::base::WriteStringToFile(log_content, install_file)) {
		PLOG(ERROR) << "failed to write " << install_file;
		}

otautil/Android.mk

+8 −4

Original line number	Diff line number	Diff line
		@@ -18,12 +18,16 @@ include $(CLEAR_VARS)
		LOCAL_SRC_FILES := \
		SysUtil.cpp \
		DirUtil.cpp \
		ZipUtil.cpp
		ZipUtil.cpp \
		ThermalUtil.cpp

		LOCAL_STATIC_LIBRARIES := libselinux libbase
		LOCAL_STATIC_LIBRARIES := \
		libselinux \
		libbase

		LOCAL_MODULE := libotautil

		LOCAL_CFLAGS += -Werror -Wall
		LOCAL_CFLAGS := \
		-Werror \
		-Wall

		include $(BUILD_STATIC_LIBRARY)

otautil/ThermalUtil.cpp

0 → 100644

+80 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2017 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 "ThermalUtil.h"

		#include <dirent.h>
		#include <stdio.h>

		#include <algorithm>
		#include <string>
		#include <vector>

		#include <android-base/file.h>
		#include <android-base/logging.h>
		#include <android-base/parseint.h>
		#include <android-base/strings.h>

		static constexpr auto THERMAL_PREFIX = "/sys/class/thermal/";

		static int thermal_filter(const dirent* de) {
		if (android::base::StartsWith(de->d_name, "thermal_zone")) {
		return 1;
		}
		return 0;
		}

		static std::vector<std::string> InitThermalPaths() {
		dirent** namelist;
		int n = scandir(THERMAL_PREFIX, &namelist, thermal_filter, alphasort);
		if (n == -1) {
		PLOG(ERROR) << "Failed to scandir " << THERMAL_PREFIX;
		return {};
		}
		if (n == 0) {
		LOG(ERROR) << "Failed to find CPU thermal info in " << THERMAL_PREFIX;
		return {};
		}

		std::vector<std::string> thermal_paths;
		while (n--) {
		thermal_paths.push_back(THERMAL_PREFIX + std::string(namelist[n]->d_name) + "/temp");
		free(namelist[n]);
		}
		free(namelist);
		return thermal_paths;
		}

		int GetMaxValueFromThermalZone() {
		static std::vector<std::string> thermal_paths = InitThermalPaths();
		int max_temperature = -1;
		for (const auto& path : thermal_paths) {
		std::string content;
		if (!android::base::ReadFileToString(path, &content)) {
		PLOG(WARNING) << "Failed to read " << path;
		continue;
		}

		int temperature;
		if (!android::base::ParseInt(android::base::Trim(content), &temperature)) {
		LOG(WARNING) << "Failed to parse integer in " << content;
		continue;
		}
		max_temperature = std::max(temperature, max_temperature);
		}
		LOG(INFO) << "current maximum temperature: " << max_temperature;
		return max_temperature;
		}
		No newline at end of file

otautil/ThermalUtil.h

0 → 100644

+24 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2017 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.
		*/

		#ifndef OTAUTIL_THERMALUTIL_H
		#define OTAUTIL_THERMALUTIL_H

		// We can find the temperature reported by all sensors in /sys/class/thermal/thermal_zone*/temp.
		// Their values are in millidegree Celsius; and we will log the maximum one.
		int GetMaxValueFromThermalZone();

		#endif // OTAUTIL_THERMALUTIL_H