Merge "Give fg apps a chance to handle stop before killing its process" into udc-dev (d2f60406) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/wm/ActivityRecord.java

+1 −0

Original line number	Diff line number	Diff line
		@@ -3978,6 +3978,7 @@ final class ActivityRecord extends WindowToken implements WindowManagerService.A
		"Reported destroyed for activity that is not destroying: r=" + this);
		}

		mTaskSupervisor.killTaskProcessesOnDestroyedIfNeeded(task);
		if (isInRootTaskLocked()) {
		cleanUp(true /* cleanServices /, false / setState */);
		removeFromHistory(reason);

services/core/java/com/android/server/wm/ActivityTaskSupervisor.java

+71 −7

Original line number	Diff line number	Diff line
		@@ -190,12 +190,19 @@ public class ActivityTaskSupervisor implements RecentTasks.Callbacks {
		/** How long we wait until giving up on the activity telling us it released the top state. */
		private static final int TOP_RESUMED_STATE_LOSS_TIMEOUT = 500;

		/**
		* The timeout to kill task processes if its activity didn't complete destruction in time
		* when there is a request to remove the task with killProcess=true.
		*/
		private static final int KILL_TASK_PROCESSES_TIMEOUT_MS = 1000;

		private static final int IDLE_TIMEOUT_MSG = FIRST_SUPERVISOR_TASK_MSG;
		private static final int IDLE_NOW_MSG = FIRST_SUPERVISOR_TASK_MSG + 1;
		private static final int RESUME_TOP_ACTIVITY_MSG = FIRST_SUPERVISOR_TASK_MSG + 2;
		private static final int SLEEP_TIMEOUT_MSG = FIRST_SUPERVISOR_TASK_MSG + 3;
		private static final int LAUNCH_TIMEOUT_MSG = FIRST_SUPERVISOR_TASK_MSG + 4;
		private static final int PROCESS_STOPPING_AND_FINISHING_MSG = FIRST_SUPERVISOR_TASK_MSG + 5;
		private static final int KILL_TASK_PROCESSES_TIMEOUT_MSG = FIRST_SUPERVISOR_TASK_MSG + 6;
		private static final int LAUNCH_TASK_BEHIND_COMPLETE = FIRST_SUPERVISOR_TASK_MSG + 12;
		private static final int RESTART_ACTIVITY_PROCESS_TIMEOUT_MSG = FIRST_SUPERVISOR_TASK_MSG + 13;
		private static final int REPORT_MULTI_WINDOW_MODE_CHANGED_MSG = FIRST_SUPERVISOR_TASK_MSG + 14;
		@@ -1642,10 +1649,32 @@ public class ActivityTaskSupervisor implements RecentTasks.Callbacks {
		return;
		}
		task.mTransitionController.requestCloseTransitionIfNeeded(task);
		// Consume the stopping activities immediately so activity manager won't skip killing
		// the process because it is still foreground state, i.e. RESUMED -> PAUSING set from
		// removeActivities -> finishIfPossible.
		if (killProcess) {
		ArrayList<ActivityRecord> activities = null;
		for (int i = mStoppingActivities.size() - 1; i >= 0; i--) {
		final ActivityRecord r = mStoppingActivities.get(i);
		if (r.getTask() == task) {
		if (activities == null) {
		activities = new ArrayList<>();
		}
		activities.add(r);
		mStoppingActivities.remove(i);
		}
		}
		if (activities != null) {
		// This can update to background state.
		for (int i = activities.size() - 1; i >= 0; i--) {
		activities.get(i).stopIfPossible();
		}
		}
		}
		task.mInRemoveTask = true;
		try {
		task.removeActivities(reason, false /* excludingTaskOverlay */);
		cleanUpRemovedTaskLocked(task, killProcess, removeFromRecents);
		cleanUpRemovedTask(task, killProcess, removeFromRecents);
		mService.getLockTaskController().clearLockedTask(task);
		mService.getTaskChangeNotificationController().notifyTaskStackChanged();
		if (task.isPersistable) {
		@@ -1825,11 +1854,13 @@ public class ActivityTaskSupervisor implements RecentTasks.Callbacks {
		}
		}

		void cleanUpRemovedTaskLocked(Task task, boolean killProcess, boolean removeFromRecents) {
		/** This method should only be called for leaf task. */
		private void cleanUpRemovedTask(Task task, boolean killProcess, boolean removeFromRecents) {
		if (removeFromRecents) {
		mRecentTasks.remove(task);
		}
		ComponentName component = task.getBaseIntent().getComponent();
		final Intent baseIntent = task.getBaseIntent();
		final ComponentName component = baseIntent != null ? baseIntent.getComponent() : null;
		if (component == null) {
		Slog.w(TAG, "No component for base intent of task: " + task);
		return;
		@@ -1837,16 +1868,38 @@ public class ActivityTaskSupervisor implements RecentTasks.Callbacks {

		// Find any running services associated with this app and stop if needed.
		final Message msg = PooledLambda.obtainMessage(ActivityManagerInternal::cleanUpServices,
		mService.mAmInternal, task.mUserId, component, new Intent(task.getBaseIntent()));
		mService.mAmInternal, task.mUserId, component, new Intent(baseIntent));
		mService.mH.sendMessage(msg);

		if (!killProcess) {
		return;
		}
		// Give a chance for the client to handle Activity#onStop(). The timeout waits for
		// onDestroy because the client defers to report completion of stopped, the callback from
		// DestroyActivityItem may be called first.
		final ActivityRecord top = task.getTopMostActivity();
		if (top != null && top.finishing && !top.mAppStopped && top.lastVisibleTime > 0
		&& !task.mKillProcessesOnDestroyed) {
		task.mKillProcessesOnDestroyed = true;
		mHandler.sendMessageDelayed(
		mHandler.obtainMessage(KILL_TASK_PROCESSES_TIMEOUT_MSG, task),
		KILL_TASK_PROCESSES_TIMEOUT_MS);
		return;
		}
		killTaskProcessesIfPossible(task);
		}

		void killTaskProcessesOnDestroyedIfNeeded(Task task) {
		if (task == null \|\| !task.mKillProcessesOnDestroyed) return;
		mHandler.removeMessages(KILL_TASK_PROCESSES_TIMEOUT_MSG, task);
		killTaskProcessesIfPossible(task);
		}

		// Determine if the process(es) for this task should be killed.
		final String pkg = component.getPackageName();
		ArrayList<Object> procsToKill = new ArrayList<>();
		/** Kills the processes in the task if it doesn't contain perceptible components. */
		private void killTaskProcessesIfPossible(Task task) {
		task.mKillProcessesOnDestroyed = false;
		final String pkg = task.getBasePackageName();
		ArrayList<Object> procsToKill = null;
		ArrayMap<String, SparseArray<WindowProcessController>> pmap =
		mService.mProcessNames.getMap();
		for (int i = 0; i < pmap.size(); i++) {
		@@ -1878,10 +1931,14 @@ public class ActivityTaskSupervisor implements RecentTasks.Callbacks {
		return;
		}

		if (procsToKill == null) {
		procsToKill = new ArrayList<>();
		}
		// Add process to kill list.
		procsToKill.add(proc);
		}
		}
		if (procsToKill == null) return;

		// Kill the running processes. Post on handle since we don't want to hold the service lock
		// while calling into AM.
		@@ -2677,6 +2734,13 @@ public class ActivityTaskSupervisor implements RecentTasks.Callbacks {
		processStoppingAndFinishingActivities(null /* launchedActivity */,
		false /* processPausingActivities */, "transit");
		} break;
		case KILL_TASK_PROCESSES_TIMEOUT_MSG: {
		final Task task = (Task) msg.obj;
		if (task.mKillProcessesOnDestroyed) {
		Slog.i(TAG, "Destroy timeout of remove-task, attempt to kill " + task);
		killTaskProcessesIfPossible(task);
		}
		} break;
		case LAUNCH_TASK_BEHIND_COMPLETE: {
		final ActivityRecord r = ActivityRecord.forTokenLocked((IBinder) msg.obj);
		if (r != null) {

services/core/java/com/android/server/wm/LockTaskController.java

+1 −3

Original line number	Diff line number	Diff line
		@@ -1014,9 +1014,7 @@ public class LockTaskController {
		*/
		boolean isBaseOfLockedTask(String packageName) {
		for (int i = 0; i < mLockTaskModeTasks.size(); i++) {
		final Intent bi = mLockTaskModeTasks.get(i).getBaseIntent();
		if (bi != null && packageName.equals(bi.getComponent()
		.getPackageName())) {
		if (packageName.equals(mLockTaskModeTasks.get(i).getBasePackageName())) {
		return true;
		}
		}

services/core/java/com/android/server/wm/RecentTasks.java

+2 −5

Original line number	Diff line number	Diff line
		@@ -682,10 +682,8 @@ class RecentTasks {
		void removeTasksByPackageName(String packageName, int userId) {
		for (int i = mTasks.size() - 1; i >= 0; --i) {
		final Task task = mTasks.get(i);
		final String taskPackageName =
		task.getBaseIntent().getComponent().getPackageName();
		if (task.mUserId != userId) continue;
		if (!taskPackageName.equals(packageName)) continue;
		if (!task.getBasePackageName().equals(packageName)) continue;

		mSupervisor.removeTask(task, true, REMOVE_FROM_RECENTS, "remove-package-task");
		}
		@@ -859,8 +857,7 @@ class RecentTasks {
		if (task.effectiveUid != callingUid) {
		continue;
		}
		Intent intent = task.getBaseIntent();
		if (intent == null \|\| !callingPackage.equals(intent.getComponent().getPackageName())) {
		if (!callingPackage.equals(task.getBasePackageName())) {
		continue;
		}
		AppTaskImpl taskImpl = new AppTaskImpl(mService, task.mTaskId, callingUid);

services/core/java/com/android/server/wm/Task.java

+24 −0

Original line number	Diff line number	Diff line
		@@ -374,6 +374,13 @@ class Task extends TaskFragment {
		* determining the order when restoring. */
		long mLastTimeMoved;

		/**
		* If it is set, the processes belong to the task will be killed when one of its activity
		* reports that Activity#onDestroy is done and the task no longer contains perceptible
		* components. This should only be set on a leaf task.
		*/
		boolean mKillProcessesOnDestroyed;

		/** If original intent did not allow relinquishing task identity, save that information */
		private boolean mNeverRelinquishIdentity = true;

		@@ -1325,6 +1332,20 @@ class Task extends TaskFragment {
		return (topTask != this && topTask != null) ? topTask.getBaseIntent() : null;
		}

		/**
		* Returns the package name which stands for this task. It is empty string if no activities
		* have been added to this task.
		*/
		@NonNull
		String getBasePackageName() {
		final Intent intent = getBaseIntent();
		if (intent == null) {
		return "";
		}
		final ComponentName componentName = intent.getComponent();
		return componentName != null ? componentName.getPackageName() : "";
		}

		/** Returns the first non-finishing activity from the bottom. */
		ActivityRecord getRootActivity() {
		// TODO: Figure out why we historical ignore relinquish identity for this case...
		@@ -3679,6 +3700,9 @@ class Task extends TaskFragment {
		if (mSharedStartingData != null) {
		pw.println(prefix + "mSharedStartingData=" + mSharedStartingData);
		}
		if (mKillProcessesOnDestroyed) {
		pw.println(prefix + "mKillProcessesOnDestroyed=true");
		}
		pw.print(prefix); pw.print("taskId=" + mTaskId);
		pw.println(" rootTaskId=" + getRootTaskId());
		pw.print(prefix); pw.println("hasChildPipActivity=" + (mChildPipActivity != null));