bootstat: Refactor init/utils/boot_clock into base/chrono_utils.
Use this for bootstat and init. This replaces the custom uptime parser in bootstat. This is a reland of aosp/332854 with a fix for Darwin. Bug: 34352037 Test: chrono_utils_test Change-Id: Ib2567d8df0e460ab59753ac1c053dd7f9f1008a7
This commit is contained in:
parent
a3e4977325
commit
7c92e48450
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@ -42,21 +42,32 @@ cc_library {
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srcs: [
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"errors_unix.cpp",
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"properties.cpp",
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"chrono_utils.cpp",
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],
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cppflags: ["-Wexit-time-destructors"],
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},
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darwin: {
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srcs: ["errors_unix.cpp"],
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srcs: [
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"chrono_utils.cpp",
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"errors_unix.cpp",
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],
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cppflags: ["-Wexit-time-destructors"],
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},
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linux_bionic: {
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srcs: ["errors_unix.cpp"],
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srcs: [
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"chrono_utils.cpp",
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"errors_unix.cpp",
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],
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cppflags: ["-Wexit-time-destructors"],
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enabled: true,
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},
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linux: {
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srcs: ["errors_unix.cpp"],
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srcs: [
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"chrono_utils.cpp",
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"errors_unix.cpp",
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],
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cppflags: ["-Wexit-time-destructors"],
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host_ldlibs: ["-lrt"],
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},
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windows: {
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srcs: [
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@ -88,7 +99,14 @@ cc_test {
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],
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target: {
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android: {
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srcs: ["properties_test.cpp"],
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srcs: [
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"chrono_utils_test.cpp",
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"properties_test.cpp"
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],
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},
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linux: {
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srcs: ["chrono_utils_test.cpp"],
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host_ldlibs: ["-lrt"],
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},
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windows: {
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srcs: ["utf8_test.cpp"],
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@ -0,0 +1,43 @@
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/*
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* Copyright (C) 2017 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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#include "android-base/chrono_utils.h"
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#include <time.h>
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namespace android {
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namespace base {
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boot_clock::time_point boot_clock::now() {
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timespec ts;
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clockid_t clk_id;
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#ifdef __ANDROID__
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clk_id = CLOCK_BOOTTIME;
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#else
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// Darwin does not support CLOCK_BOOTTIME. CLOCK_MONOTONIC is a sufficient
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// fallback; the only loss of precision is the time duration when the system
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// is suspended.
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clk_id = CLOCK_MONOTONIC;
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#endif // __ANDROID__
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clock_gettime(clk_id, &ts);
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return boot_clock::time_point(std::chrono::seconds(ts.tv_sec) +
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std::chrono::nanoseconds(ts.tv_nsec));
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}
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} // namespace base
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} // namespace android
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@ -0,0 +1,47 @@
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/*
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* Copyright (C) 2017 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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#include "android-base/chrono_utils.h"
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#include <time.h>
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#include <chrono>
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#include <gtest/gtest.h>
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namespace android {
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namespace base {
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std::chrono::seconds GetBootTimeSeconds() {
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struct timespec now;
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clock_gettime(CLOCK_BOOTTIME, &now);
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auto now_tp = boot_clock::time_point(
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std::chrono::seconds(now.tv_sec) + std::chrono::nanoseconds(now.tv_nsec));
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return std::chrono::duration_cast<std::chrono::seconds>(
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now_tp.time_since_epoch());
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}
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// Tests (at least) the seconds accuracy of the boot_clock::now() method.
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TEST(ChronoUtilsTest, BootClockNowSeconds) {
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auto now = GetBootTimeSeconds();
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auto boot_seconds = std::chrono::duration_cast<std::chrono::seconds>(
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boot_clock::now().time_since_epoch());
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EXPECT_EQ(now, boot_seconds);
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}
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} // namespace base
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} // namespace android
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 2016 The Android Open Source Project
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* Copyright (C) 2017 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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@ -14,16 +14,24 @@
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* limitations under the License.
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*/
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#ifndef UPTIME_PARSER_H_
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#define UPTIME_PARSER_H_
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#ifndef ANDROID_BASE_CHRONO_UTILS_H
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#define ANDROID_BASE_CHRONO_UTILS_H
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#include <time.h>
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#include <chrono>
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namespace bootstat {
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namespace android {
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namespace base {
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// Returns the number of seconds the system has been on since reboot.
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time_t ParseUptime();
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// A std::chrono clock based on CLOCK_BOOTTIME.
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class boot_clock {
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public:
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typedef std::chrono::nanoseconds duration;
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typedef std::chrono::time_point<boot_clock, duration> time_point;
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} // namespace bootstat
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static time_point now();
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};
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#endif // UPTIME_PARSER_H_
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} // namespace base
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} // namespace android
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#endif // ANDROID_BASE_CHRONO_UTILS_H
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@ -16,7 +16,6 @@
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bootstat_lib_src_files = [
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"boot_event_record_store.cpp",
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"uptime_parser.cpp",
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]
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cc_defaults {
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@ -20,13 +20,16 @@
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <utime.h>
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#include <chrono>
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#include <cstdlib>
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#include <string>
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#include <utility>
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#include <android-base/chrono_utils.h>
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#include <android-base/file.h>
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#include <android-base/logging.h>
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#include <android-base/parseint.h>
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#include "uptime_parser.h"
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namespace {
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@ -55,7 +58,9 @@ BootEventRecordStore::BootEventRecordStore() {
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}
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void BootEventRecordStore::AddBootEvent(const std::string& event) {
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AddBootEventWithValue(event, bootstat::ParseUptime());
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auto uptime = std::chrono::duration_cast<std::chrono::seconds>(
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android::base::boot_clock::now().time_since_epoch());
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AddBootEventWithValue(event, uptime.count());
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}
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// The implementation of AddBootEventValue makes use of the mtime file
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@ -21,15 +21,18 @@
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <chrono>
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#include <cstdint>
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#include <cstdlib>
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#include <android-base/chrono_utils.h>
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#include <android-base/file.h>
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#include <android-base/logging.h>
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#include <android-base/test_utils.h>
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#include <android-base/unique_fd.h>
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#include <gtest/gtest.h>
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#include <gmock/gmock.h>
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#include "uptime_parser.h"
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using testing::UnorderedElementsAreArray;
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@ -89,6 +92,12 @@ void DeleteDirectory(const std::string& path) {
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rmdir(path.c_str());
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}
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// Returns the time in seconds since boot.
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time_t GetUptimeSeconds() {
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return std::chrono::duration_cast<std::chrono::seconds>(
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android::base::boot_clock::now().time_since_epoch()).count();
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}
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class BootEventRecordStoreTest : public ::testing::Test {
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public:
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BootEventRecordStoreTest() {
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@ -126,7 +135,7 @@ TEST_F(BootEventRecordStoreTest, AddSingleBootEvent) {
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BootEventRecordStore store;
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store.SetStorePath(GetStorePathForTesting());
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time_t uptime = bootstat::ParseUptime();
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time_t uptime = GetUptimeSeconds();
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ASSERT_NE(-1, uptime);
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store.AddBootEvent("cenozoic");
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BootEventRecordStore store;
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store.SetStorePath(GetStorePathForTesting());
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time_t uptime = bootstat::ParseUptime();
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time_t uptime = GetUptimeSeconds();
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ASSERT_NE(-1, uptime);
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store.AddBootEvent("cretaceous");
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@ -21,6 +21,7 @@
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#include <getopt.h>
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#include <unistd.h>
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#include <chrono>
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#include <cmath>
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#include <cstddef>
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#include <cstdio>
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#include <vector>
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#include <android/log.h>
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#include <android-base/chrono_utils.h>
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#include <android-base/logging.h>
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#include <android-base/parseint.h>
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#include <android-base/strings.h>
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#include <metricslogger/metrics_logger.h>
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#include "boot_event_record_store.h"
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#include "uptime_parser.h"
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namespace {
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@ -247,7 +248,8 @@ void RecordBootComplete() {
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BootEventRecordStore boot_event_store;
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BootEventRecordStore::BootEventRecord record;
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time_t uptime = bootstat::ParseUptime();
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auto uptime = std::chrono::duration_cast<std::chrono::seconds>(
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android::base::boot_clock::now().time_since_epoch());
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time_t current_time_utc = time(nullptr);
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if (boot_event_store.GetBootEvent("last_boot_time_utc", &record)) {
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// Log the amount of time elapsed until the device is decrypted, which
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// includes the variable amount of time the user takes to enter the
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// decryption password.
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boot_event_store.AddBootEventWithValue("boot_decryption_complete", uptime);
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boot_event_store.AddBootEventWithValue("boot_decryption_complete", uptime.count());
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// Subtract the decryption time to normalize the boot cycle timing.
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time_t boot_complete = uptime - record.second;
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std::chrono::seconds boot_complete = std::chrono::seconds(uptime.count() - record.second);
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boot_event_store.AddBootEventWithValue(boot_complete_prefix + "_post_decrypt",
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boot_complete);
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boot_complete.count());
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} else {
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boot_event_store.AddBootEventWithValue(boot_complete_prefix + "_no_encryption",
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uptime);
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uptime.count());
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}
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// Record the total time from device startup to boot complete, regardless of
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// encryption state.
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boot_event_store.AddBootEventWithValue(boot_complete_prefix, uptime);
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boot_event_store.AddBootEventWithValue(boot_complete_prefix, uptime.count());
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RecordInitBootTimeProp(&boot_event_store, "ro.boottime.init");
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RecordInitBootTimeProp(&boot_event_store, "ro.boottime.init.selinux");
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@ -1,38 +0,0 @@
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/*
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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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#include "uptime_parser.h"
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#include <time.h>
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#include <cstdlib>
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#include <string>
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#include <android-base/file.h>
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#include <android-base/logging.h>
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namespace bootstat {
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time_t ParseUptime() {
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std::string uptime_str;
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if (!android::base::ReadFileToString("/proc/uptime", &uptime_str)) {
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PLOG(ERROR) << "Failed to read /proc/uptime";
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return -1;
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}
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// Cast intentionally rounds down.
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return static_cast<time_t>(strtod(uptime_str.c_str(), NULL));
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}
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} // namespace bootstat
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@ -36,7 +36,7 @@ LOCAL_MODULE := init_parser_tests
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LOCAL_SRC_FILES := \
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parser/tokenizer_test.cpp \
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LOCAL_STATIC_LIBRARIES := libinit_parser
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LOCAL_STATIC_LIBRARIES := libbase libinit_parser
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LOCAL_CLANG := true
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include $(BUILD_HOST_NATIVE_TEST)
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endif
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@ -40,6 +40,7 @@
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#include <selinux/label.h>
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#include <selinux/android.h>
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#include <android-base/chrono_utils.h>
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#include <android-base/file.h>
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#include <android-base/stringprintf.h>
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#include <android-base/strings.h>
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@ -68,6 +69,7 @@
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#include "util.h"
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#include "watchdogd.h"
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using android::base::boot_clock;
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using android::base::StringPrintf;
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struct selabel_handle *sehandle;
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@ -750,7 +752,7 @@ int main(int argc, char** argv) {
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return watchdogd_main(argc, argv);
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}
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boot_clock::time_point start_time = boot_clock::now();
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boot_clock::time_point start_time = android::base::boot_clock::now();
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// Clear the umask.
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umask(0);
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@ -32,6 +32,7 @@
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#include <selinux/selinux.h>
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#include <android-base/chrono_utils.h>
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#include <android-base/file.h>
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#include <android-base/parseint.h>
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#include <android-base/stringprintf.h>
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@ -47,6 +48,7 @@
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#include "property_service.h"
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#include "util.h"
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using android::base::boot_clock;
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using android::base::ParseInt;
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using android::base::StringPrintf;
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using android::base::WriteStringToFile;
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@ -25,6 +25,8 @@
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#include <string>
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#include <vector>
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#include <android-base/chrono_utils.h>
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#include "action.h"
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#include "capabilities.h"
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#include "descriptors.h"
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@ -135,8 +137,8 @@ private:
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unsigned flags_;
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pid_t pid_;
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boot_clock::time_point time_started_; // time of last start
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boot_clock::time_point time_crashed_; // first crash within inspection window
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android::base::boot_clock::time_point time_started_; // time of last start
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android::base::boot_clock::time_point time_crashed_; // first crash within inspection window
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int crash_count_; // number of times crashed within window
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uid_t uid_;
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@ -51,6 +51,8 @@
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#include "property_service.h"
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#include "util.h"
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using android::base::boot_clock;
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static unsigned int do_decode_uid(const char *s)
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{
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unsigned int v;
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@ -199,11 +201,16 @@ bool write_file(const char* path, const char* content) {
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return success;
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}
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boot_clock::time_point boot_clock::now() {
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timespec ts;
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clock_gettime(CLOCK_BOOTTIME, &ts);
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return boot_clock::time_point(std::chrono::seconds(ts.tv_sec) +
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std::chrono::nanoseconds(ts.tv_nsec));
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Timer::Timer() : start_(boot_clock::now()) {
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}
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double Timer::duration_s() const {
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typedef std::chrono::duration<double> double_duration;
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return std::chrono::duration_cast<double_duration>(boot_clock::now() - start_).count();
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}
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int64_t Timer::duration_ms() const {
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return std::chrono::duration_cast<std::chrono::milliseconds>(boot_clock::now() - start_).count();
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}
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||||
|
||||
int mkdir_recursive(const char *pathname, mode_t mode)
|
||||
|
|
26
init/util.h
26
init/util.h
|
@ -25,6 +25,8 @@
|
|||
#include <ostream>
|
||||
#include <string>
|
||||
|
||||
#include <android-base/chrono_utils.h>
|
||||
|
||||
#define COLDBOOT_DONE "/dev/.coldboot_done"
|
||||
|
||||
using namespace std::chrono_literals;
|
||||
|
@ -35,32 +37,16 @@ int create_socket(const char *name, int type, mode_t perm,
|
|||
bool read_file(const char* path, std::string* content);
|
||||
bool write_file(const char* path, const char* content);
|
||||
|
||||
// A std::chrono clock based on CLOCK_BOOTTIME.
|
||||
class boot_clock {
|
||||
public:
|
||||
typedef std::chrono::nanoseconds duration;
|
||||
typedef std::chrono::time_point<boot_clock, duration> time_point;
|
||||
static constexpr bool is_steady = true;
|
||||
|
||||
static time_point now();
|
||||
};
|
||||
|
||||
class Timer {
|
||||
public:
|
||||
Timer() : start_(boot_clock::now()) {
|
||||
}
|
||||
Timer();
|
||||
|
||||
double duration_s() const {
|
||||
typedef std::chrono::duration<double> double_duration;
|
||||
return std::chrono::duration_cast<double_duration>(boot_clock::now() - start_).count();
|
||||
}
|
||||
double duration_s() const;
|
||||
|
||||
int64_t duration_ms() const {
|
||||
return std::chrono::duration_cast<std::chrono::milliseconds>(boot_clock::now() - start_).count();
|
||||
}
|
||||
int64_t duration_ms() const;
|
||||
|
||||
private:
|
||||
boot_clock::time_point start_;
|
||||
android::base::boot_clock::time_point start_;
|
||||
};
|
||||
|
||||
std::ostream& operator<<(std::ostream& os, const Timer& t);
|
||||
|
|
Loading…
Reference in New Issue