Updating recent tasks list in response to package events. (Bug 14260718) (8faa342c) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/am/ActivityManagerService.java

+75 −20

Original line number	Diff line number	Diff line
		@@ -41,6 +41,7 @@ import com.android.internal.annotations.GuardedBy;
		import com.android.internal.app.IAppOpsService;
		import com.android.internal.app.ProcessMap;
		import com.android.internal.app.ProcessStats;
		import com.android.internal.content.PackageMonitor;
		import com.android.internal.os.BackgroundThread;
		import com.android.internal.os.BatteryStatsImpl;
		import com.android.internal.os.ProcessCpuTracker;
		@@ -1813,6 +1814,78 @@ public final class ActivityManagerService extends ActivityManagerNative
		}
		};

		/**
		* Monitor for package changes and update our internal state.
		*/
		private final PackageMonitor mPackageMonitor = new PackageMonitor() {
		@Override
		public void onPackageRemoved(String packageName, int uid) {
		// Remove all tasks with activities in the specified package from the list of recent tasks
		synchronized (ActivityManagerService.this) {
		for (int i = mRecentTasks.size() - 1; i >= 0; i--) {
		TaskRecord tr = mRecentTasks.get(i);
		ComponentName cn = tr.intent.getComponent();
		if (cn != null && cn.getPackageName().equals(packageName)) {
		// If the package name matches, remove the task and kill the process
		removeTaskByIdLocked(tr.taskId, ActivityManager.REMOVE_TASK_KILL_PROCESS);
		}
		}
		}
		}

		@Override
		public boolean onPackageChanged(String packageName, int uid, String[] components) {
		final PackageManager pm = mContext.getPackageManager();
		final ArrayList<TaskRecord> recentTasks = new ArrayList<TaskRecord>();
		final ArrayList<TaskRecord> tasksToRemove = new ArrayList<TaskRecord>();
		// Copy the list of recent tasks so that we don't hold onto the lock on
		// ActivityManagerService for long periods while checking if components exist.
		synchronized (ActivityManagerService.this) {
		recentTasks.addAll(mRecentTasks);
		}
		// Check the recent tasks and filter out all tasks with components that no longer exist.
		Intent tmpI = new Intent();
		for (int i = recentTasks.size() - 1; i >= 0; i--) {
		TaskRecord tr = recentTasks.get(i);
		ComponentName cn = tr.intent.getComponent();
		if (cn != null && cn.getPackageName().equals(packageName)) {
		try {
		// Add the task to the list to remove if the component no longer exists
		tmpI.setComponent(cn);
		if (pm.queryIntentActivities(tmpI, PackageManager.MATCH_DEFAULT_ONLY).isEmpty()) {
		tasksToRemove.add(tr);
		}
		} catch (Exception e) {}
		}
		}
		// Prune all the tasks with removed components from the list of recent tasks
		synchronized (ActivityManagerService.this) {
		for (int i = tasksToRemove.size() - 1; i >= 0; i--) {
		TaskRecord tr = tasksToRemove.get(i);
		// Remove the task but don't kill the process
		removeTaskByIdLocked(tr.taskId, 0);
		}
		}
		return true;
		}

		@Override
		public boolean onHandleForceStop(Intent intent, String[] packages, int uid, boolean doit) {
		// Force stop the specified packages
		if (packages != null) {
		for (String pkg : packages) {
		synchronized (ActivityManagerService.this) {
		if (forceStopPackageLocked(pkg, -1, false, false, false, false, false, 0,
		"finished booting")) {
		return true;
		}
		}
		}
		}
		return false;
		}
		};

		public void setSystemProcess() {
		try {
		ServiceManager.addService(Context.ACTIVITY_SERVICE, this, true);
		@@ -5200,26 +5273,8 @@ public final class ActivityManagerService extends ActivityManagerNative
		}

		final void finishBooting() {
		IntentFilter pkgFilter = new IntentFilter();
		pkgFilter.addAction(Intent.ACTION_QUERY_PACKAGE_RESTART);
		pkgFilter.addDataScheme("package");
		mContext.registerReceiver(new BroadcastReceiver() {
		@Override
		public void onReceive(Context context, Intent intent) {
		String[] pkgs = intent.getStringArrayExtra(Intent.EXTRA_PACKAGES);
		if (pkgs != null) {
		for (String pkg : pkgs) {
		synchronized (ActivityManagerService.this) {
		if (forceStopPackageLocked(pkg, -1, false, false, false, false, false, 0,
		"finished booting")) {
		setResultCode(Activity.RESULT_OK);
		return;
		}
		}
		}
		}
		}
		}, pkgFilter);
		// Register receivers to handle package update events
		mPackageMonitor.register(mContext, Looper.getMainLooper(), false);

		synchronized (this) {
		// Ensure that any processes we had put on hold are now started