/*
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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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package com.android.launcher3.util;
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import static android.util.Log.VERBOSE;
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import static android.util.Log.isLoggable;
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import android.os.SystemClock;
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import android.os.Trace;
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import android.util.ArrayMap;
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import android.util.Log;
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import android.util.MutableLong;
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import com.android.launcher3.config.FeatureFlags;
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/**
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* A wrapper around {@link Trace} with some utility information.
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*
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* To enable any tracing log, execute the following command:
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* $ adb shell setprop log.tag.LAUNCHER_TRACE VERBOSE
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* $ adb shell setprop log.tag.TAGNAME VERBOSE
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*/
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public class TraceHelper {
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private static final boolean ENABLED = isLoggable("LAUNCHER_TRACE", VERBOSE);
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private static final boolean SYSTEM_TRACE = ENABLED;
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private static final ArrayMap<String, MutableLong> sUpTimes = ENABLED ? new ArrayMap<>() : null;
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public static void beginSection(String sectionName) {
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if (ENABLED) {
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synchronized (sUpTimes) {
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MutableLong time = sUpTimes.get(sectionName);
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if (time == null) {
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time = new MutableLong(isLoggable(sectionName, VERBOSE) ? 0 : -1);
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sUpTimes.put(sectionName, time);
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}
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if (time.value >= 0) {
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if (SYSTEM_TRACE) {
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Trace.beginSection(sectionName);
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}
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time.value = SystemClock.uptimeMillis();
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}
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}
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}
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}
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public static void partitionSection(String sectionName, String partition) {
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if (ENABLED) {
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synchronized (sUpTimes) {
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MutableLong time = sUpTimes.get(sectionName);
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if (time != null && time.value >= 0) {
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if (SYSTEM_TRACE) {
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Trace.endSection();
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Trace.beginSection(sectionName);
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}
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long now = SystemClock.uptimeMillis();
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Log.d(sectionName, partition + " : " + (now - time.value));
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time.value = now;
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}
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}
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}
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}
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public static void endSection(String sectionName) {
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if (ENABLED) {
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endSection(sectionName, "End");
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}
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}
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public static void endSection(String sectionName, String msg) {
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if (ENABLED) {
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synchronized (sUpTimes) {
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MutableLong time = sUpTimes.get(sectionName);
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if (time != null && time.value >= 0) {
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if (SYSTEM_TRACE) {
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Trace.endSection();
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}
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Log.d(sectionName, msg + " : " + (SystemClock.uptimeMillis() - time.value));
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}
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}
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}
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}
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}
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