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Unifying various tracing calls

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Change-Id: Iedf6662ad1d7281b850bdc43b3a1e373ce535ac6
This commit is contained in:
Sunny Goyal
2019-10-14 14:06:38 -07:00
parent 4009493f3c
commit 17c72fbb60
17 changed files with 367 additions and 562 deletions
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101
src/com/android/launcher3/util/TraceHelper.java
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@@ -15,19 +15,14 @@
*/
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;
import androidx.annotation.MainThread;
import java.util.function.Supplier;
/**
* A wrapper around {@link Trace} with some utility information.
* A wrapper around {@link Trace} to allow better testing.
*
* To enable any tracing log, execute the following command:
* $ adb shell setprop log.tag.LAUNCHER_TRACE VERBOSE
@@ -35,65 +30,51 @@ import com.android.launcher3.config.FeatureFlags;
*/
public class TraceHelper {
private static final boolean ENABLED = isLoggable("LAUNCHER_TRACE", VERBOSE);
// Track binder class for this trace
public static final int FLAG_ALLOW_BINDER_TRACKING = 1 << 0;
private static final boolean SYSTEM_TRACE = ENABLED;
private static final ArrayMap<String, MutableLong> sUpTimes = ENABLED ? new ArrayMap<>() : null;
// Temporarily ignore blocking binder calls for this trace.
public static final int FLAG_IGNORE_BINDERS = 1 << 1;
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 final int FLAG_CHECK_FOR_RACE_CONDITIONS = 1 << 2;
public static final int FLAG_UI_EVENT =
FLAG_ALLOW_BINDER_TRACKING | FLAG_CHECK_FOR_RACE_CONDITIONS;
/**
* Static instance of Trace helper, overridden in tests.
*/
public static TraceHelper INSTANCE = new TraceHelper();
public void beginSection(String sectionName) {
beginSection(sectionName, 0);
}
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 void beginSection(String sectionName, int flags) {
Trace.beginSection(sectionName);
}
public static void endSection(String sectionName) {
if (ENABLED) {
endSection(sectionName, "End");
}
public void endSection() {
Trace.endSection();
}
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));
}
}
/**
* Similar to {@link #beginSection} but doesn't add a trace section.
*/
public void beginFlagsOverride(int flags) { }
public void endFlagsOverride() { }
/**
* Temporarily ignore blocking binder calls for the duration of this {@link Supplier}.
*/
@MainThread
public static <T> T whitelistIpcs(String rpcName, Supplier<T> supplier) {
INSTANCE.beginSection(rpcName, FLAG_IGNORE_BINDERS);
try {
return supplier.get();
} finally {
INSTANCE.endSection();
}
}
}