| /* |
| * 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 android.os; |
| |
| import android.app.ActivityManager; |
| import android.app.VrManager; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.pm.PackageManager; |
| import android.provider.Settings; |
| import android.test.ActivityInstrumentationTestCase2; |
| |
| import androidx.test.filters.SmallTest; |
| |
| /** |
| * Tests ActivityManager#setPersistentVrThread and ActivityManager#setVrThread's |
| * interaction with persistent VR mode. |
| */ |
| public class SetPersistentVrThreadTest extends ActivityInstrumentationTestCase2<TestVrActivity> { |
| private TestVrActivity mActivity; |
| private ActivityManager mActivityManager; |
| private VrManager mVrManager; |
| private Context mContext; |
| private String mOldVrListener; |
| private ComponentName mRequestedComponent; |
| private static final int SCHED_OTHER = 0; |
| private static final int SCHED_FIFO = 1; |
| private static final int SCHED_RESET_ON_FORK = 0x40000000; |
| public static final String ENABLED_VR_LISTENERS = "enabled_vr_listeners"; |
| private static final String TAG = "VrSetPersistentFIFOThreadTest"; |
| |
| public SetPersistentVrThreadTest() { |
| super(TestVrActivity.class); |
| } |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| mContext = getInstrumentation().getTargetContext(); |
| mActivityManager = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); |
| mVrManager = (VrManager) mContext.getSystemService(Context.VR_SERVICE); |
| |
| mRequestedComponent = new ComponentName(mContext, |
| TestVrActivity.TestVrListenerService.class); |
| mOldVrListener = Settings.Secure.getString(mContext.getContentResolver(), |
| ENABLED_VR_LISTENERS); |
| Settings.Secure.putString(mContext.getContentResolver(), ENABLED_VR_LISTENERS, |
| mRequestedComponent.flattenToString()); |
| mActivity = getActivity(); |
| } |
| |
| @Override |
| protected void tearDown() throws Exception { |
| try { |
| setPersistentVrModeEnabled(false); |
| } catch (Throwable e) { |
| // pass |
| } |
| Settings.Secure.putString(mContext.getContentResolver(), ENABLED_VR_LISTENERS, |
| mOldVrListener); |
| super.tearDown(); |
| } |
| |
| private void setPersistentVrModeEnabled(boolean enable) throws Throwable { |
| if (mVrManager != null) { |
| mVrManager.setPersistentVrModeEnabled(enable); |
| // Allow the system time to send out callbacks for persistent VR mode. |
| Thread.sleep(200); |
| } |
| } |
| |
| @SmallTest |
| public void testSetPersistentVrThreadAPISuccess() throws Throwable { |
| if (!mActivity.getPackageManager().hasSystemFeature( |
| PackageManager.FEATURE_VR_MODE_HIGH_PERFORMANCE)) { |
| return; |
| } |
| |
| int vr_thread = 0, policy = 0; |
| vr_thread = Process.myTid(); |
| |
| setPersistentVrModeEnabled(true); |
| mActivityManager.setPersistentVrThread(vr_thread); |
| policy = (int) Process.getThreadScheduler(vr_thread); |
| assertEquals((SCHED_FIFO | SCHED_RESET_ON_FORK), policy); |
| |
| // Check that the thread loses priority when persistent mode is disabled. |
| setPersistentVrModeEnabled(false); |
| policy = (int) Process.getThreadScheduler(vr_thread); |
| assertEquals(SCHED_OTHER, policy); |
| |
| // Check that disabling VR mode when in persistent mode does not affect the persistent |
| // thread. |
| mActivity.setVrModeEnabled(true, mRequestedComponent); |
| Thread.sleep(200); |
| setPersistentVrModeEnabled(true); |
| Thread.sleep(200); |
| mActivityManager.setPersistentVrThread(vr_thread); |
| policy = (int) Process.getThreadScheduler(vr_thread); |
| assertEquals((SCHED_FIFO | SCHED_RESET_ON_FORK), policy); |
| mActivity.setVrModeEnabled(false, mRequestedComponent); |
| Thread.sleep(200); |
| assertEquals((SCHED_FIFO | SCHED_RESET_ON_FORK), policy); |
| setPersistentVrModeEnabled(false); |
| policy = (int) Process.getThreadScheduler(vr_thread); |
| assertEquals(SCHED_OTHER, policy); |
| } |
| |
| @SmallTest |
| public void testSetPersistentVrThreadAPIFailure() throws Throwable { |
| if (!mActivity.getPackageManager().hasSystemFeature( |
| PackageManager.FEATURE_VR_MODE_HIGH_PERFORMANCE)) { |
| return; |
| } |
| int vr_thread = 0, policy = 0; |
| vr_thread = Process.myTid(); |
| mActivityManager.setPersistentVrThread(vr_thread); |
| policy = (int) Process.getThreadScheduler(vr_thread); |
| assertEquals(SCHED_OTHER, policy); |
| } |
| |
| @SmallTest |
| public void testSetVrThreadAPIFailsInPersistentMode() throws Throwable { |
| if (!mActivity.getPackageManager().hasSystemFeature( |
| PackageManager.FEATURE_VR_MODE_HIGH_PERFORMANCE)) { |
| return; |
| } |
| int vr_thread = 0, policy = 0; |
| mActivity.setVrModeEnabled(true, mRequestedComponent); |
| vr_thread = Process.myTid(); |
| |
| setPersistentVrModeEnabled(true); |
| mActivityManager.setVrThread(vr_thread); |
| policy = (int) Process.getThreadScheduler(vr_thread); |
| assertEquals(SCHED_OTHER, policy); |
| setPersistentVrModeEnabled(false); |
| |
| // When not in persistent mode the API works again. |
| mActivity.setVrModeEnabled(true, mRequestedComponent); |
| mActivityManager.setVrThread(vr_thread); |
| policy = (int) Process.getThreadScheduler(vr_thread); |
| assertEquals((SCHED_FIFO | SCHED_RESET_ON_FORK), policy); |
| |
| // The thread loses priority when persistent mode is disabled. |
| setPersistentVrModeEnabled(true); |
| policy = (int) Process.getThreadScheduler(vr_thread); |
| assertEquals(SCHED_OTHER, policy); |
| setPersistentVrModeEnabled(false); |
| } |
| } |