145 lines
3.8 KiB
C++
145 lines
3.8 KiB
C++
/*
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* Copyright (C) 2016 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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// The bootstat command provides options to persist boot events with the current
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// timestamp, dump the persisted events, and log all events to EventLog to be
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// uploaded to Android log storage via Tron.
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//#define LOG_TAG "bootstat"
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#include <unistd.h>
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#include <cstddef>
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#include <cstdio>
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#include <memory>
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#include <string>
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#include <android-base/logging.h>
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#include <log/log.h>
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#include "boot_event_record_store.h"
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#include "event_log_list_builder.h"
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namespace {
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// Builds an EventLog buffer named |event| containing |data| and writes
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// the log into the Tron histogram logs.
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void LogBootEvent(const std::string& event, int32_t data) {
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LOG(INFO) << "Logging boot time: " << event << " " << data;
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EventLogListBuilder log_builder;
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log_builder.Append(event);
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log_builder.Append(data);
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std::unique_ptr<uint8_t[]> log;
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size_t size;
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log_builder.Release(&log, &size);
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android_bWriteLog(HISTOGRAM_LOG_TAG, log.get(), size);
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}
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// Scans the boot event record store for record files and logs each boot event
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// via EventLog.
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void LogBootEvents() {
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BootEventRecordStore boot_event_store;
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auto events = boot_event_store.GetAllBootEvents();
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for (auto i = events.cbegin(); i != events.cend(); ++i) {
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LogBootEvent(i->first, i->second);
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}
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}
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void PrintBootEvents() {
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printf("Boot events:\n");
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printf("------------\n");
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BootEventRecordStore boot_event_store;
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auto events = boot_event_store.GetAllBootEvents();
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for (auto i = events.cbegin(); i != events.cend(); ++i) {
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printf("%s\t%d\n", i->first.c_str(), i->second);
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}
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}
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void ShowHelp(const char *cmd) {
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fprintf(stderr, "Usage: %s [options]\n", cmd);
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fprintf(stderr,
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"options include:\n"
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" -d Dump the boot event records to the console.\n"
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" -h Show this help.\n"
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" -l Log all metrics to logstorage.\n"
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" -r Record the timestamp of a named boot event.\n");
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}
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// Constructs a readable, printable string from the givencommand line
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// arguments.
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std::string GetCommandLine(int argc, char **argv) {
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std::string cmd;
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for (int i = 0; i < argc; ++i) {
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cmd += argv[i];
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cmd += " ";
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}
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return cmd;
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}
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} // namespace
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int main(int argc, char **argv) {
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android::base::InitLogging(argv);
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const std::string cmd_line = GetCommandLine(argc, argv);
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LOG(INFO) << "Service started: " << cmd_line;
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int opt = 0;
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while ((opt = getopt(argc, argv, "hlpr:")) != -1) {
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switch (opt) {
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case 'h': {
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ShowHelp(argv[0]);
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break;
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}
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case 'l': {
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LogBootEvents();
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break;
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}
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case 'p': {
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PrintBootEvents();
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break;
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}
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case 'r': {
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// |optarg| is an external variable set by getopt representing
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// the option argument.
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const char* event = optarg;
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BootEventRecordStore boot_event_store;
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boot_event_store.AddBootEvent(event);
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break;
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}
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default: {
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DCHECK_EQ(opt, '?');
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// |optopt| is an external variable set by getopt representing
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// the value of the invalid option.
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LOG(ERROR) << "Invalid option: " << optopt;
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ShowHelp(argv[0]);
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return EXIT_FAILURE;
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}
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}
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}
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return 0;
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}
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