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