Add test api to gc system and sysui (3d5b0124) · Commits · e / os / android_frameworks_base

core/java/com/android/internal/statusbar/IStatusBar.aidl

+5 −0

Original line number	Diff line number	Diff line
		@@ -271,4 +271,9 @@ oneway interface IStatusBar
		* @param enable {@code true} if enable, otherwise set to {@code false}.
		*/
		void setNavigationBarLumaSamplingEnabled(int displayId, boolean enable);

		/**
		* Triggers a GC in the system and status bar.
		*/
		void runGcForTest();
		}

core/java/com/android/internal/util/GcUtils.java

0 → 100644

+72 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2021 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.internal.util;

		import android.util.Slog;

		import java.util.concurrent.CountDownLatch;
		import java.util.concurrent.TimeUnit;

		/**
		* A helper class to handle gc'ing a process, mainly used for testing.
		*
		* @hide
		*/
		public final class GcUtils {
		private static final String TAG = GcUtils.class.getSimpleName();

		/**
		* Runs a GC and attempts to wait for finalization.
		*/
		public static void runGcAndFinalizersSync() {
		Runtime.getRuntime().gc();
		Runtime.getRuntime().runFinalization();

		final CountDownLatch fence = new CountDownLatch(1);
		createFinalizationObserver(fence);
		try {
		do {
		Runtime.getRuntime().gc();
		Runtime.getRuntime().runFinalization();
		} while (!fence.await(100, TimeUnit.MILLISECONDS));
		} catch (InterruptedException ex) {
		throw new RuntimeException(ex);
		}
		Slog.v(TAG, "Running gc and finalizers");
		}

		/**
		* Create the observer in the scope of a method to minimize the chance that
		* it remains live in a DEX/machine register at the point of the fence guard.
		* This must be kept to avoid R8 inlining it.
		*/
		private static void createFinalizationObserver(CountDownLatch fence) {
		new Object() {
		@Override
		protected void finalize() throws Throwable {
		try {
		fence.countDown();
		} finally {
		super.finalize();
		}
		}
		};
		}

		// Uninstantiable
		private GcUtils() {}
		}

packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java

+7 −0

Original line number	Diff line number	Diff line
		@@ -57,6 +57,7 @@ import androidx.annotation.NonNull;
		import com.android.internal.os.SomeArgs;
		import com.android.internal.statusbar.IStatusBar;
		import com.android.internal.statusbar.StatusBarIcon;
		import com.android.internal.util.GcUtils;
		import com.android.internal.view.AppearanceRegion;
		import com.android.systemui.statusbar.CommandQueue.Callbacks;
		import com.android.systemui.statusbar.commandline.CommandRegistry;
		@@ -1086,6 +1087,12 @@ public class CommandQueue extends IStatusBar.Stub implements CallbackController<
		thr.start();
		}

		@Override
		public void runGcForTest() {
		// Gc sysui
		GcUtils.runGcAndFinalizersSync();
		}

		private final class H extends Handler {
		private H(Looper l) {
		super(l);

services/core/java/com/android/server/statusbar/StatusBarManagerService.java

+18 −0

Original line number	Diff line number	Diff line
		@@ -71,6 +71,7 @@ import com.android.internal.statusbar.NotificationVisibility;
		import com.android.internal.statusbar.RegisterStatusBarResult;
		import com.android.internal.statusbar.StatusBarIcon;
		import com.android.internal.util.DumpUtils;
		import com.android.internal.util.GcUtils;
		import com.android.internal.view.AppearanceRegion;
		import com.android.server.LocalServices;
		import com.android.server.UiThread;
		@@ -649,6 +650,7 @@ public class StatusBarManagerService extends IStatusBarService.Stub implements D
		// ================================================================================
		// From IStatusBarService
		// ================================================================================

		@Override
		public void expandNotificationsPanel() {
		enforceExpandStatusBar();
		@@ -971,6 +973,22 @@ public class StatusBarManagerService extends IStatusBarService.Stub implements D
		return new int[] {disable1, disable2};
		}

		void runGcForTest() {
		if (!Build.IS_DEBUGGABLE) {
		throw new SecurityException("runGcForTest requires a debuggable build");
		}

		// Gc the system along the way
		GcUtils.runGcAndFinalizersSync();

		if (mBar != null) {
		try {
		mBar.runGcForTest();
		} catch (RemoteException ex) {
		}
		}
		}

		@Override
		public void setIcon(String slot, String iconPackage, int iconId, int iconLevel,
		String contentDescription) {

services/core/java/com/android/server/statusbar/StatusBarShellCommand.java

+7 −0

Original line number	Diff line number	Diff line
		@@ -75,6 +75,8 @@ public class StatusBarShellCommand extends ShellCommand {
		return runSendDisableFlag();
		case "tracing":
		return runTracing();
		case "run-gc":
		return runGc();
		// Handle everything that would be handled in `handleDefaultCommand()` explicitly,
		// so the default can be to pass all args to StatusBar
		case "-h":
		@@ -213,6 +215,11 @@ public class StatusBarShellCommand extends ShellCommand {
		return 0;
		}

		private int runGc() {
		mInterface.runGcForTest();
		return 0;
		}

		@Override
		public void onHelp() {
		final PrintWriter pw = getOutPrintWriter();