Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server.am; |
| 18 | |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 19 | import android.annotation.NonNull; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 20 | import android.graphics.Bitmap; |
| 21 | import android.graphics.BitmapFactory; |
| 22 | import android.os.Debug; |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 23 | import android.os.Environment; |
| 24 | import android.os.FileUtils; |
Suprabh Shukla | 09a88f5 | 2015-12-02 14:36:31 -0800 | [diff] [blame] | 25 | import android.os.Process; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 26 | import android.os.SystemClock; |
| 27 | import android.util.ArraySet; |
| 28 | import android.util.AtomicFile; |
| 29 | import android.util.Slog; |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 30 | import android.util.SparseArray; |
| 31 | import android.util.SparseBooleanArray; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 32 | import android.util.Xml; |
Wale Ogunwale | 18795a2 | 2014-12-03 11:38:33 -0800 | [diff] [blame] | 33 | |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 34 | import com.android.internal.annotations.VisibleForTesting; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 35 | import com.android.internal.util.FastXmlSerializer; |
| 36 | import com.android.internal.util.XmlUtils; |
Suprabh Shukla | 09a88f5 | 2015-12-02 14:36:31 -0800 | [diff] [blame] | 37 | import libcore.io.IoUtils; |
| 38 | |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 39 | import org.xmlpull.v1.XmlPullParser; |
| 40 | import org.xmlpull.v1.XmlPullParserException; |
| 41 | import org.xmlpull.v1.XmlSerializer; |
| 42 | |
| 43 | import java.io.BufferedReader; |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 44 | import java.io.BufferedWriter; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 45 | import java.io.File; |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 46 | import java.io.FileNotFoundException; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 47 | import java.io.FileOutputStream; |
| 48 | import java.io.FileReader; |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 49 | import java.io.FileWriter; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 50 | import java.io.IOException; |
| 51 | import java.io.StringWriter; |
| 52 | import java.util.ArrayList; |
Suprabh Shukla | 09a88f5 | 2015-12-02 14:36:31 -0800 | [diff] [blame] | 53 | import java.util.Collections; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 54 | import java.util.Comparator; |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 55 | import java.util.List; |
Wale Ogunwale | 18795a2 | 2014-12-03 11:38:33 -0800 | [diff] [blame] | 56 | |
Wale Ogunwale | 625ed0c | 2016-10-18 08:50:31 -0700 | [diff] [blame] | 57 | import static android.app.ActivityManager.StackId.HOME_STACK_ID; |
Winson Chung | 7900bee | 2017-03-10 08:59:25 -0800 | [diff] [blame^] | 58 | import static android.app.ActivityManager.StackId.INVALID_STACK_ID; |
| 59 | |
| 60 | import static com.android.server.am.ActivityStackSupervisor.MATCH_TASK_IN_STACKS_OR_RECENT_TASKS; |
Wale Ogunwale | 625ed0c | 2016-10-18 08:50:31 -0700 | [diff] [blame] | 61 | |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 62 | public class TaskPersister { |
| 63 | static final String TAG = "TaskPersister"; |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 64 | static final boolean DEBUG = false; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 65 | |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 66 | /** When not flushing don't write out files faster than this */ |
| 67 | private static final long INTER_WRITE_DELAY_MS = 500; |
| 68 | |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 69 | /** |
| 70 | * When not flushing delay this long before writing the first file out. This gives the next task |
| 71 | * being launched a chance to load its resources without this occupying IO bandwidth. |
| 72 | */ |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 73 | private static final long PRE_TASK_DELAY_MS = 3000; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 74 | |
Craig Mautner | 63f1090 | 2014-09-16 23:57:21 -0700 | [diff] [blame] | 75 | /** The maximum number of entries to keep in the queue before draining it automatically. */ |
| 76 | private static final int MAX_WRITE_QUEUE_LENGTH = 6; |
| 77 | |
| 78 | /** Special value for mWriteTime to mean don't wait, just write */ |
| 79 | private static final long FLUSH_QUEUE = -1; |
| 80 | |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 81 | private static final String RECENTS_FILENAME = "_task"; |
| 82 | private static final String TASKS_DIRNAME = "recent_tasks"; |
| 83 | private static final String TASK_EXTENSION = ".xml"; |
| 84 | private static final String IMAGES_DIRNAME = "recent_images"; |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 85 | private static final String PERSISTED_TASK_IDS_FILENAME = "persisted_taskIds.txt"; |
Craig Mautner | c0ffce5 | 2014-07-01 12:38:52 -0700 | [diff] [blame] | 86 | static final String IMAGE_EXTENSION = ".png"; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 87 | |
Winson Chung | 36f3f03 | 2016-09-08 23:29:43 +0000 | [diff] [blame] | 88 | private static final String TAG_TASK = "task"; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 89 | |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 90 | private final ActivityManagerService mService; |
| 91 | private final ActivityStackSupervisor mStackSupervisor; |
Wale Ogunwale | c82f2f5 | 2014-12-09 09:32:50 -0800 | [diff] [blame] | 92 | private final RecentTasks mRecentTasks; |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 93 | private final SparseArray<SparseBooleanArray> mTaskIdsInFile = new SparseArray<>(); |
Suprabh Shukla | f50b458 | 2016-02-23 17:44:22 -0800 | [diff] [blame] | 94 | private final File mTaskIdsDir; |
Suprabh Shukla | fd0bd4f | 2016-08-24 14:08:29 -0700 | [diff] [blame] | 95 | // To lock file operations in TaskPersister |
| 96 | private final Object mIoLock = new Object(); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 97 | |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 98 | /** |
| 99 | * Value determines write delay mode as follows: < 0 We are Flushing. No delays between writes |
| 100 | * until the image queue is drained and all tasks needing persisting are written to disk. There |
| 101 | * is no delay between writes. == 0 We are Idle. Next writes will be delayed by |
| 102 | * #PRE_TASK_DELAY_MS. > 0 We are Actively writing. Next write will be at this time. Subsequent |
| 103 | * writes will be delayed by #INTER_WRITE_DELAY_MS. |
| 104 | */ |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 105 | private long mNextWriteTime = 0; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 106 | |
| 107 | private final LazyTaskWriterThread mLazyTaskWriterThread; |
| 108 | |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 109 | private static class WriteQueueItem {} |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 110 | |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 111 | private static class TaskWriteQueueItem extends WriteQueueItem { |
| 112 | final TaskRecord mTask; |
Winson | c809cbb | 2015-11-02 12:06:15 -0800 | [diff] [blame] | 113 | |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 114 | TaskWriteQueueItem(TaskRecord task) { |
| 115 | mTask = task; |
| 116 | } |
| 117 | } |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 118 | |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 119 | private static class ImageWriteQueueItem extends WriteQueueItem { |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 120 | final String mFilePath; |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 121 | Bitmap mImage; |
Winson | c809cbb | 2015-11-02 12:06:15 -0800 | [diff] [blame] | 122 | |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 123 | ImageWriteQueueItem(String filePath, Bitmap image) { |
| 124 | mFilePath = filePath; |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 125 | mImage = image; |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | ArrayList<WriteQueueItem> mWriteQueue = new ArrayList<WriteQueueItem>(); |
| 130 | |
Wale Ogunwale | c82f2f5 | 2014-12-09 09:32:50 -0800 | [diff] [blame] | 131 | TaskPersister(File systemDir, ActivityStackSupervisor stackSupervisor, |
Suprabh Shukla | 09a88f5 | 2015-12-02 14:36:31 -0800 | [diff] [blame] | 132 | ActivityManagerService service, RecentTasks recentTasks) { |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 133 | |
| 134 | final File legacyImagesDir = new File(systemDir, IMAGES_DIRNAME); |
| 135 | if (legacyImagesDir.exists()) { |
| 136 | if (!FileUtils.deleteContents(legacyImagesDir) || !legacyImagesDir.delete()) { |
| 137 | Slog.i(TAG, "Failure deleting legacy images directory: " + legacyImagesDir); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 138 | } |
| 139 | } |
| 140 | |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 141 | final File legacyTasksDir = new File(systemDir, TASKS_DIRNAME); |
| 142 | if (legacyTasksDir.exists()) { |
| 143 | if (!FileUtils.deleteContents(legacyTasksDir) || !legacyTasksDir.delete()) { |
| 144 | Slog.i(TAG, "Failure deleting legacy tasks directory: " + legacyTasksDir); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 145 | } |
| 146 | } |
| 147 | |
Suprabh Shukla | f50b458 | 2016-02-23 17:44:22 -0800 | [diff] [blame] | 148 | mTaskIdsDir = new File(Environment.getDataDirectory(), "system_de"); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 149 | mStackSupervisor = stackSupervisor; |
Suprabh Shukla | 09a88f5 | 2015-12-02 14:36:31 -0800 | [diff] [blame] | 150 | mService = service; |
Wale Ogunwale | c82f2f5 | 2014-12-09 09:32:50 -0800 | [diff] [blame] | 151 | mRecentTasks = recentTasks; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 152 | mLazyTaskWriterThread = new LazyTaskWriterThread("LazyTaskWriterThread"); |
| 153 | } |
| 154 | |
Suprabh Shukla | f50b458 | 2016-02-23 17:44:22 -0800 | [diff] [blame] | 155 | @VisibleForTesting |
| 156 | TaskPersister(File workingDir) { |
| 157 | mTaskIdsDir = workingDir; |
| 158 | mStackSupervisor = null; |
| 159 | mService = null; |
| 160 | mRecentTasks = null; |
| 161 | mLazyTaskWriterThread = new LazyTaskWriterThread("LazyTaskWriterThreadTest"); |
| 162 | } |
| 163 | |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 164 | void startPersisting() { |
Wale Ogunwale | c82f2f5 | 2014-12-09 09:32:50 -0800 | [diff] [blame] | 165 | if (!mLazyTaskWriterThread.isAlive()) { |
| 166 | mLazyTaskWriterThread.start(); |
| 167 | } |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 168 | } |
| 169 | |
Craig Mautner | 63f1090 | 2014-09-16 23:57:21 -0700 | [diff] [blame] | 170 | private void removeThumbnails(TaskRecord task) { |
| 171 | final String taskString = Integer.toString(task.taskId); |
| 172 | for (int queueNdx = mWriteQueue.size() - 1; queueNdx >= 0; --queueNdx) { |
| 173 | final WriteQueueItem item = mWriteQueue.get(queueNdx); |
Suprabh Shukla | 09a88f5 | 2015-12-02 14:36:31 -0800 | [diff] [blame] | 174 | if (item instanceof ImageWriteQueueItem) { |
| 175 | final File thumbnailFile = new File(((ImageWriteQueueItem) item).mFilePath); |
| 176 | if (thumbnailFile.getName().startsWith(taskString)) { |
| 177 | if (DEBUG) { |
| 178 | Slog.d(TAG, "Removing " + ((ImageWriteQueueItem) item).mFilePath + |
| 179 | " from write queue"); |
| 180 | } |
| 181 | mWriteQueue.remove(queueNdx); |
| 182 | } |
Craig Mautner | 63f1090 | 2014-09-16 23:57:21 -0700 | [diff] [blame] | 183 | } |
| 184 | } |
| 185 | } |
| 186 | |
| 187 | private void yieldIfQueueTooDeep() { |
| 188 | boolean stall = false; |
| 189 | synchronized (this) { |
| 190 | if (mNextWriteTime == FLUSH_QUEUE) { |
| 191 | stall = true; |
| 192 | } |
| 193 | } |
| 194 | if (stall) { |
| 195 | Thread.yield(); |
| 196 | } |
| 197 | } |
| 198 | |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 199 | @NonNull |
| 200 | SparseBooleanArray loadPersistedTaskIdsForUser(int userId) { |
| 201 | if (mTaskIdsInFile.get(userId) != null) { |
| 202 | return mTaskIdsInFile.get(userId).clone(); |
| 203 | } |
| 204 | final SparseBooleanArray persistedTaskIds = new SparseBooleanArray(); |
Suprabh Shukla | fd0bd4f | 2016-08-24 14:08:29 -0700 | [diff] [blame] | 205 | synchronized (mIoLock) { |
| 206 | BufferedReader reader = null; |
| 207 | String line; |
| 208 | try { |
| 209 | reader = new BufferedReader(new FileReader(getUserPersistedTaskIdsFile(userId))); |
| 210 | while ((line = reader.readLine()) != null) { |
| 211 | for (String taskIdString : line.split("\\s+")) { |
| 212 | int id = Integer.parseInt(taskIdString); |
| 213 | persistedTaskIds.put(id, true); |
| 214 | } |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 215 | } |
Suprabh Shukla | fd0bd4f | 2016-08-24 14:08:29 -0700 | [diff] [blame] | 216 | } catch (FileNotFoundException e) { |
| 217 | // File doesn't exist. Ignore. |
| 218 | } catch (Exception e) { |
| 219 | Slog.e(TAG, "Error while reading taskIds file for user " + userId, e); |
| 220 | } finally { |
| 221 | IoUtils.closeQuietly(reader); |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 222 | } |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 223 | } |
| 224 | mTaskIdsInFile.put(userId, persistedTaskIds); |
| 225 | return persistedTaskIds.clone(); |
| 226 | } |
| 227 | |
Suprabh Shukla | fd0bd4f | 2016-08-24 14:08:29 -0700 | [diff] [blame] | 228 | |
Suprabh Shukla | f50b458 | 2016-02-23 17:44:22 -0800 | [diff] [blame] | 229 | @VisibleForTesting |
Suprabh Shukla | fd0bd4f | 2016-08-24 14:08:29 -0700 | [diff] [blame] | 230 | void writePersistedTaskIdsForUser(@NonNull SparseBooleanArray taskIds, int userId) { |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 231 | if (userId < 0) { |
| 232 | return; |
| 233 | } |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 234 | final File persistedTaskIdsFile = getUserPersistedTaskIdsFile(userId); |
Suprabh Shukla | fd0bd4f | 2016-08-24 14:08:29 -0700 | [diff] [blame] | 235 | synchronized (mIoLock) { |
| 236 | BufferedWriter writer = null; |
| 237 | try { |
| 238 | writer = new BufferedWriter(new FileWriter(persistedTaskIdsFile)); |
| 239 | for (int i = 0; i < taskIds.size(); i++) { |
| 240 | if (taskIds.valueAt(i)) { |
| 241 | writer.write(String.valueOf(taskIds.keyAt(i))); |
| 242 | writer.newLine(); |
| 243 | } |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 244 | } |
Suprabh Shukla | fd0bd4f | 2016-08-24 14:08:29 -0700 | [diff] [blame] | 245 | } catch (Exception e) { |
| 246 | Slog.e(TAG, "Error while writing taskIds file for user " + userId, e); |
| 247 | } finally { |
| 248 | IoUtils.closeQuietly(writer); |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 249 | } |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 250 | } |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 251 | } |
| 252 | |
| 253 | void unloadUserDataFromMemory(int userId) { |
| 254 | mTaskIdsInFile.delete(userId); |
| 255 | } |
| 256 | |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 257 | void wakeup(TaskRecord task, boolean flush) { |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 258 | synchronized (this) { |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 259 | if (task != null) { |
| 260 | int queueNdx; |
| 261 | for (queueNdx = mWriteQueue.size() - 1; queueNdx >= 0; --queueNdx) { |
| 262 | final WriteQueueItem item = mWriteQueue.get(queueNdx); |
| 263 | if (item instanceof TaskWriteQueueItem && |
| 264 | ((TaskWriteQueueItem) item).mTask == task) { |
Craig Mautner | 63f1090 | 2014-09-16 23:57:21 -0700 | [diff] [blame] | 265 | if (!task.inRecents) { |
| 266 | // This task is being removed. |
| 267 | removeThumbnails(task); |
| 268 | } |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 269 | break; |
| 270 | } |
| 271 | } |
Wale Ogunwale | be23ff4 | 2014-10-21 16:29:51 -0700 | [diff] [blame] | 272 | if (queueNdx < 0 && task.isPersistable) { |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 273 | mWriteQueue.add(new TaskWriteQueueItem(task)); |
| 274 | } |
| 275 | } else { |
Suprabh Shukla | 09a88f5 | 2015-12-02 14:36:31 -0800 | [diff] [blame] | 276 | // Dummy. Ensures removeObsoleteFiles is called when LazyTaskThreadWriter is |
| 277 | // notified. |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 278 | mWriteQueue.add(new WriteQueueItem()); |
| 279 | } |
Craig Mautner | 63f1090 | 2014-09-16 23:57:21 -0700 | [diff] [blame] | 280 | if (flush || mWriteQueue.size() > MAX_WRITE_QUEUE_LENGTH) { |
| 281 | mNextWriteTime = FLUSH_QUEUE; |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 282 | } else if (mNextWriteTime == 0) { |
| 283 | mNextWriteTime = SystemClock.uptimeMillis() + PRE_TASK_DELAY_MS; |
| 284 | } |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 285 | if (DEBUG) Slog.d(TAG, "wakeup: task=" + task + " flush=" + flush + " mNextWriteTime=" |
| 286 | + mNextWriteTime + " mWriteQueue.size=" + mWriteQueue.size() |
| 287 | + " Callers=" + Debug.getCallers(4)); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 288 | notifyAll(); |
| 289 | } |
Craig Mautner | 63f1090 | 2014-09-16 23:57:21 -0700 | [diff] [blame] | 290 | |
| 291 | yieldIfQueueTooDeep(); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 292 | } |
| 293 | |
Dianne Hackborn | ce0fd76 | 2014-09-19 12:58:15 -0700 | [diff] [blame] | 294 | void flush() { |
| 295 | synchronized (this) { |
| 296 | mNextWriteTime = FLUSH_QUEUE; |
| 297 | notifyAll(); |
| 298 | do { |
| 299 | try { |
| 300 | wait(); |
| 301 | } catch (InterruptedException e) { |
| 302 | } |
| 303 | } while (mNextWriteTime == FLUSH_QUEUE); |
| 304 | } |
| 305 | } |
| 306 | |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 307 | void saveImage(Bitmap image, String filePath) { |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 308 | synchronized (this) { |
| 309 | int queueNdx; |
| 310 | for (queueNdx = mWriteQueue.size() - 1; queueNdx >= 0; --queueNdx) { |
| 311 | final WriteQueueItem item = mWriteQueue.get(queueNdx); |
| 312 | if (item instanceof ImageWriteQueueItem) { |
| 313 | ImageWriteQueueItem imageWriteQueueItem = (ImageWriteQueueItem) item; |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 314 | if (imageWriteQueueItem.mFilePath.equals(filePath)) { |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 315 | // replace the Bitmap with the new one. |
| 316 | imageWriteQueueItem.mImage = image; |
| 317 | break; |
| 318 | } |
| 319 | } |
| 320 | } |
| 321 | if (queueNdx < 0) { |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 322 | mWriteQueue.add(new ImageWriteQueueItem(filePath, image)); |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 323 | } |
Craig Mautner | 63f1090 | 2014-09-16 23:57:21 -0700 | [diff] [blame] | 324 | if (mWriteQueue.size() > MAX_WRITE_QUEUE_LENGTH) { |
| 325 | mNextWriteTime = FLUSH_QUEUE; |
| 326 | } else if (mNextWriteTime == 0) { |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 327 | mNextWriteTime = SystemClock.uptimeMillis() + PRE_TASK_DELAY_MS; |
| 328 | } |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 329 | if (DEBUG) Slog.d(TAG, "saveImage: filePath=" + filePath + " now=" + |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 330 | SystemClock.uptimeMillis() + " mNextWriteTime=" + |
| 331 | mNextWriteTime + " Callers=" + Debug.getCallers(4)); |
| 332 | notifyAll(); |
| 333 | } |
Craig Mautner | 63f1090 | 2014-09-16 23:57:21 -0700 | [diff] [blame] | 334 | |
| 335 | yieldIfQueueTooDeep(); |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 336 | } |
| 337 | |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 338 | Bitmap getTaskDescriptionIcon(String filePath) { |
Craig Mautner | 648f69b | 2014-09-18 14:16:26 -0700 | [diff] [blame] | 339 | // See if it is in the write queue |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 340 | final Bitmap icon = getImageFromWriteQueue(filePath); |
Craig Mautner | 648f69b | 2014-09-18 14:16:26 -0700 | [diff] [blame] | 341 | if (icon != null) { |
| 342 | return icon; |
| 343 | } |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 344 | return restoreImage(filePath); |
Craig Mautner | 648f69b | 2014-09-18 14:16:26 -0700 | [diff] [blame] | 345 | } |
| 346 | |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 347 | Bitmap getImageFromWriteQueue(String filePath) { |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 348 | synchronized (this) { |
| 349 | for (int queueNdx = mWriteQueue.size() - 1; queueNdx >= 0; --queueNdx) { |
| 350 | final WriteQueueItem item = mWriteQueue.get(queueNdx); |
| 351 | if (item instanceof ImageWriteQueueItem) { |
| 352 | ImageWriteQueueItem imageWriteQueueItem = (ImageWriteQueueItem) item; |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 353 | if (imageWriteQueueItem.mFilePath.equals(filePath)) { |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 354 | return imageWriteQueueItem.mImage; |
| 355 | } |
| 356 | } |
| 357 | } |
| 358 | return null; |
| 359 | } |
| 360 | } |
| 361 | |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 362 | private StringWriter saveToXml(TaskRecord task) throws IOException, XmlPullParserException { |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 363 | if (DEBUG) Slog.d(TAG, "saveToXml: task=" + task); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 364 | final XmlSerializer xmlSerializer = new FastXmlSerializer(); |
| 365 | StringWriter stringWriter = new StringWriter(); |
| 366 | xmlSerializer.setOutput(stringWriter); |
| 367 | |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 368 | if (DEBUG) xmlSerializer.setFeature( |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 369 | "http://xmlpull.org/v1/doc/features.html#indent-output", true); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 370 | |
| 371 | // save task |
| 372 | xmlSerializer.startDocument(null, true); |
| 373 | |
| 374 | xmlSerializer.startTag(null, TAG_TASK); |
| 375 | task.saveToXml(xmlSerializer); |
| 376 | xmlSerializer.endTag(null, TAG_TASK); |
| 377 | |
| 378 | xmlSerializer.endDocument(); |
| 379 | xmlSerializer.flush(); |
| 380 | |
| 381 | return stringWriter; |
| 382 | } |
| 383 | |
Craig Mautner | 77b0426 | 2014-06-27 15:22:12 -0700 | [diff] [blame] | 384 | private String fileToString(File file) { |
| 385 | final String newline = System.lineSeparator(); |
| 386 | try { |
| 387 | BufferedReader reader = new BufferedReader(new FileReader(file)); |
| 388 | StringBuffer sb = new StringBuffer((int) file.length() * 2); |
| 389 | String line; |
| 390 | while ((line = reader.readLine()) != null) { |
| 391 | sb.append(line + newline); |
| 392 | } |
| 393 | reader.close(); |
| 394 | return sb.toString(); |
| 395 | } catch (IOException ioe) { |
| 396 | Slog.e(TAG, "Couldn't read file " + file.getName()); |
| 397 | return null; |
| 398 | } |
| 399 | } |
| 400 | |
Craig Mautner | a228ae9 | 2014-07-09 05:44:55 -0700 | [diff] [blame] | 401 | private TaskRecord taskIdToTask(int taskId, ArrayList<TaskRecord> tasks) { |
| 402 | if (taskId < 0) { |
| 403 | return null; |
| 404 | } |
| 405 | for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { |
| 406 | final TaskRecord task = tasks.get(taskNdx); |
| 407 | if (task.taskId == taskId) { |
| 408 | return task; |
| 409 | } |
| 410 | } |
| 411 | Slog.e(TAG, "Restore affiliation error looking for taskId=" + taskId); |
| 412 | return null; |
| 413 | } |
| 414 | |
Suprabh Shukla | 09a88f5 | 2015-12-02 14:36:31 -0800 | [diff] [blame] | 415 | List<TaskRecord> restoreTasksForUserLocked(final int userId) { |
| 416 | final ArrayList<TaskRecord> tasks = new ArrayList<TaskRecord>(); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 417 | ArraySet<Integer> recoveredTaskIds = new ArraySet<Integer>(); |
| 418 | |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 419 | File userTasksDir = getUserTasksDir(userId); |
Winson Chung | 36f3f03 | 2016-09-08 23:29:43 +0000 | [diff] [blame] | 420 | |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 421 | File[] recentFiles = userTasksDir.listFiles(); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 422 | if (recentFiles == null) { |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 423 | Slog.e(TAG, "restoreTasksForUserLocked: Unable to list files from " + userTasksDir); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 424 | return tasks; |
| 425 | } |
| 426 | |
| 427 | for (int taskNdx = 0; taskNdx < recentFiles.length; ++taskNdx) { |
| 428 | File taskFile = recentFiles[taskNdx]; |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 429 | if (DEBUG) { |
| 430 | Slog.d(TAG, "restoreTasksForUserLocked: userId=" + userId |
| 431 | + ", taskFile=" + taskFile.getName()); |
| 432 | } |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 433 | BufferedReader reader = null; |
Craig Mautner | e0129b3 | 2014-05-25 16:41:09 -0700 | [diff] [blame] | 434 | boolean deleteFile = false; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 435 | try { |
| 436 | reader = new BufferedReader(new FileReader(taskFile)); |
| 437 | final XmlPullParser in = Xml.newPullParser(); |
| 438 | in.setInput(reader); |
| 439 | |
| 440 | int event; |
| 441 | while (((event = in.next()) != XmlPullParser.END_DOCUMENT) && |
| 442 | event != XmlPullParser.END_TAG) { |
| 443 | final String name = in.getName(); |
| 444 | if (event == XmlPullParser.START_TAG) { |
Suprabh Shukla | 09a88f5 | 2015-12-02 14:36:31 -0800 | [diff] [blame] | 445 | if (DEBUG) Slog.d(TAG, "restoreTasksForUserLocked: START_TAG name=" + name); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 446 | if (TAG_TASK.equals(name)) { |
Winson Chung | 36f3f03 | 2016-09-08 23:29:43 +0000 | [diff] [blame] | 447 | final TaskRecord task = TaskRecord.restoreFromXml(in, mStackSupervisor); |
Suprabh Shukla | 09a88f5 | 2015-12-02 14:36:31 -0800 | [diff] [blame] | 448 | if (DEBUG) Slog.d(TAG, "restoreTasksForUserLocked: restored task=" |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 449 | + task); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 450 | if (task != null) { |
Winson Chung | 36f3f03 | 2016-09-08 23:29:43 +0000 | [diff] [blame] | 451 | // XXX Don't add to write queue... there is no reason to write |
| 452 | // out the stuff we just read, if we don't write it we will |
| 453 | // read the same thing again. |
| 454 | // mWriteQueue.add(new TaskWriteQueueItem(task)); |
| 455 | |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 456 | final int taskId = task.taskId; |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 457 | if (mStackSupervisor.anyTaskForIdLocked(taskId, |
Winson Chung | 7900bee | 2017-03-10 08:59:25 -0800 | [diff] [blame^] | 458 | MATCH_TASK_IN_STACKS_OR_RECENT_TASKS, |
| 459 | INVALID_STACK_ID) != null) { |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 460 | // Should not happen. |
| 461 | Slog.wtf(TAG, "Existing task with taskId " + taskId + "found"); |
| 462 | } else if (userId != task.userId) { |
| 463 | // Should not happen. |
| 464 | Slog.wtf(TAG, "Task with userId " + task.userId + " found in " |
| 465 | + userTasksDir.getAbsolutePath()); |
| 466 | } else { |
| 467 | // Looks fine. |
| 468 | mStackSupervisor.setNextTaskIdForUserLocked(taskId, userId); |
Amith Yamasani | 515d406 | 2015-09-28 11:30:06 -0700 | [diff] [blame] | 469 | task.isPersistable = true; |
| 470 | tasks.add(task); |
| 471 | recoveredTaskIds.add(taskId); |
| 472 | } |
Craig Mautner | 77b0426 | 2014-06-27 15:22:12 -0700 | [diff] [blame] | 473 | } else { |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 474 | Slog.e(TAG, "restoreTasksForUserLocked: Unable to restore taskFile=" |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 475 | + taskFile + ": " + fileToString(taskFile)); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 476 | } |
| 477 | } else { |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 478 | Slog.wtf(TAG, "restoreTasksForUserLocked: Unknown xml event=" + event |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 479 | + " name=" + name); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 480 | } |
| 481 | } |
| 482 | XmlUtils.skipCurrentTag(in); |
| 483 | } |
Craig Mautner | e0129b3 | 2014-05-25 16:41:09 -0700 | [diff] [blame] | 484 | } catch (Exception e) { |
Craig Mautner | a228ae9 | 2014-07-09 05:44:55 -0700 | [diff] [blame] | 485 | Slog.wtf(TAG, "Unable to parse " + taskFile + ". Error ", e); |
Craig Mautner | 77b0426 | 2014-06-27 15:22:12 -0700 | [diff] [blame] | 486 | Slog.e(TAG, "Failing file: " + fileToString(taskFile)); |
Craig Mautner | e0129b3 | 2014-05-25 16:41:09 -0700 | [diff] [blame] | 487 | deleteFile = true; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 488 | } finally { |
Wale Ogunwale | 18795a2 | 2014-12-03 11:38:33 -0800 | [diff] [blame] | 489 | IoUtils.closeQuietly(reader); |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 490 | if (deleteFile) { |
| 491 | if (DEBUG) Slog.d(TAG, "Deleting file=" + taskFile.getName()); |
Craig Mautner | e0129b3 | 2014-05-25 16:41:09 -0700 | [diff] [blame] | 492 | taskFile.delete(); |
| 493 | } |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 494 | } |
| 495 | } |
| 496 | |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 497 | if (!DEBUG) { |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 498 | removeObsoleteFiles(recoveredTaskIds, userTasksDir.listFiles()); |
| 499 | } |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 500 | |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 501 | // Fix up task affiliation from taskIds |
Craig Mautner | a228ae9 | 2014-07-09 05:44:55 -0700 | [diff] [blame] | 502 | for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) { |
| 503 | final TaskRecord task = tasks.get(taskNdx); |
| 504 | task.setPrevAffiliate(taskIdToTask(task.mPrevAffiliateTaskId, tasks)); |
| 505 | task.setNextAffiliate(taskIdToTask(task.mNextAffiliateTaskId, tasks)); |
| 506 | } |
| 507 | |
Suprabh Shukla | 09a88f5 | 2015-12-02 14:36:31 -0800 | [diff] [blame] | 508 | Collections.sort(tasks, new Comparator<TaskRecord>() { |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 509 | @Override |
| 510 | public int compare(TaskRecord lhs, TaskRecord rhs) { |
Craig Mautner | 43e52ed | 2014-06-16 17:18:52 -0700 | [diff] [blame] | 511 | final long diff = rhs.mLastTimeMoved - lhs.mLastTimeMoved; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 512 | if (diff < 0) { |
| 513 | return -1; |
| 514 | } else if (diff > 0) { |
| 515 | return +1; |
| 516 | } else { |
| 517 | return 0; |
| 518 | } |
| 519 | } |
| 520 | }); |
Suprabh Shukla | 09a88f5 | 2015-12-02 14:36:31 -0800 | [diff] [blame] | 521 | return tasks; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 522 | } |
| 523 | |
Craig Mautner | e0129b3 | 2014-05-25 16:41:09 -0700 | [diff] [blame] | 524 | private static void removeObsoleteFiles(ArraySet<Integer> persistentTaskIds, File[] files) { |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 525 | if (DEBUG) Slog.d(TAG, "removeObsoleteFiles: persistentTaskIds=" + persistentTaskIds + |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 526 | " files=" + files); |
Craig Mautner | a5badf0 | 2014-09-11 12:47:03 -0700 | [diff] [blame] | 527 | if (files == null) { |
Suprabh Shukla | dc4b80d | 2016-04-20 15:24:31 -0700 | [diff] [blame] | 528 | Slog.e(TAG, "File error accessing recents directory (directory doesn't exist?)."); |
Craig Mautner | a5badf0 | 2014-09-11 12:47:03 -0700 | [diff] [blame] | 529 | return; |
| 530 | } |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 531 | for (int fileNdx = 0; fileNdx < files.length; ++fileNdx) { |
| 532 | File file = files[fileNdx]; |
| 533 | String filename = file.getName(); |
Craig Mautner | ffcfcaa | 2014-06-05 09:54:38 -0700 | [diff] [blame] | 534 | final int taskIdEnd = filename.indexOf('_'); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 535 | if (taskIdEnd > 0) { |
| 536 | final int taskId; |
| 537 | try { |
Narayan Kamath | a09b4d2 | 2016-04-15 18:32:45 +0100 | [diff] [blame] | 538 | taskId = Integer.parseInt(filename.substring(0, taskIdEnd)); |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 539 | if (DEBUG) Slog.d(TAG, "removeObsoleteFiles: Found taskId=" + taskId); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 540 | } catch (Exception e) { |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 541 | Slog.wtf(TAG, "removeObsoleteFiles: Can't parse file=" + file.getName()); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 542 | file.delete(); |
| 543 | continue; |
| 544 | } |
| 545 | if (!persistentTaskIds.contains(taskId)) { |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 546 | if (DEBUG) Slog.d(TAG, "removeObsoleteFiles: deleting file=" + file.getName()); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 547 | file.delete(); |
| 548 | } |
| 549 | } |
| 550 | } |
| 551 | } |
| 552 | |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 553 | private void writeTaskIdsFiles() { |
Suprabh Shukla | fd0bd4f | 2016-08-24 14:08:29 -0700 | [diff] [blame] | 554 | SparseArray<SparseBooleanArray> changedTaskIdsPerUser = new SparseArray<>(); |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 555 | synchronized (mService) { |
Suprabh Shukla | fd0bd4f | 2016-08-24 14:08:29 -0700 | [diff] [blame] | 556 | for (int userId : mRecentTasks.usersWithRecentsLoadedLocked()) { |
| 557 | SparseBooleanArray taskIdsToSave = mRecentTasks.mPersistedTaskIds.get(userId); |
| 558 | SparseBooleanArray persistedIdsInFile = mTaskIdsInFile.get(userId); |
| 559 | if (persistedIdsInFile != null && persistedIdsInFile.equals(taskIdsToSave)) { |
| 560 | continue; |
| 561 | } else { |
| 562 | SparseBooleanArray taskIdsToSaveCopy = taskIdsToSave.clone(); |
| 563 | mTaskIdsInFile.put(userId, taskIdsToSaveCopy); |
| 564 | changedTaskIdsPerUser.put(userId, taskIdsToSaveCopy); |
| 565 | } |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 566 | } |
Suprabh Shukla | fd0bd4f | 2016-08-24 14:08:29 -0700 | [diff] [blame] | 567 | } |
| 568 | for (int i = 0; i < changedTaskIdsPerUser.size(); i++) { |
| 569 | writePersistedTaskIdsForUser(changedTaskIdsPerUser.valueAt(i), |
| 570 | changedTaskIdsPerUser.keyAt(i)); |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 571 | } |
| 572 | } |
| 573 | |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 574 | private void removeObsoleteFiles(ArraySet<Integer> persistentTaskIds) { |
Suprabh Shukla | 09a88f5 | 2015-12-02 14:36:31 -0800 | [diff] [blame] | 575 | int[] candidateUserIds; |
| 576 | synchronized (mService) { |
| 577 | // Remove only from directories of the users who have recents in memory synchronized |
| 578 | // with persistent storage. |
| 579 | candidateUserIds = mRecentTasks.usersWithRecentsLoadedLocked(); |
| 580 | } |
| 581 | for (int userId : candidateUserIds) { |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 582 | removeObsoleteFiles(persistentTaskIds, getUserImagesDir(userId).listFiles()); |
| 583 | removeObsoleteFiles(persistentTaskIds, getUserTasksDir(userId).listFiles()); |
| 584 | } |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 585 | } |
| 586 | |
| 587 | static Bitmap restoreImage(String filename) { |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 588 | if (DEBUG) Slog.d(TAG, "restoreImage: restoring " + filename); |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 589 | return BitmapFactory.decodeFile(filename); |
| 590 | } |
| 591 | |
Suprabh Shukla | f50b458 | 2016-02-23 17:44:22 -0800 | [diff] [blame] | 592 | private File getUserPersistedTaskIdsFile(int userId) { |
| 593 | File userTaskIdsDir = new File(mTaskIdsDir, String.valueOf(userId)); |
| 594 | if (!userTaskIdsDir.exists() && !userTaskIdsDir.mkdirs()) { |
| 595 | Slog.e(TAG, "Error while creating user directory: " + userTaskIdsDir); |
| 596 | } |
| 597 | return new File(userTaskIdsDir, PERSISTED_TASK_IDS_FILENAME); |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 598 | } |
| 599 | |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 600 | static File getUserTasksDir(int userId) { |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 601 | File userTasksDir = new File(Environment.getDataSystemCeDirectory(userId), TASKS_DIRNAME); |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 602 | |
| 603 | if (!userTasksDir.exists()) { |
| 604 | if (!userTasksDir.mkdir()) { |
| 605 | Slog.e(TAG, "Failure creating tasks directory for user " + userId + ": " |
| 606 | + userTasksDir); |
| 607 | } |
| 608 | } |
| 609 | return userTasksDir; |
| 610 | } |
| 611 | |
| 612 | static File getUserImagesDir(int userId) { |
Suprabh Shukla | dc4b80d | 2016-04-20 15:24:31 -0700 | [diff] [blame] | 613 | return new File(Environment.getDataSystemCeDirectory(userId), IMAGES_DIRNAME); |
| 614 | } |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 615 | |
Suprabh Shukla | dc4b80d | 2016-04-20 15:24:31 -0700 | [diff] [blame] | 616 | private static boolean createParentDirectory(String filePath) { |
| 617 | File parentDir = new File(filePath).getParentFile(); |
| 618 | return parentDir.exists() || parentDir.mkdirs(); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 619 | } |
| 620 | |
| 621 | private class LazyTaskWriterThread extends Thread { |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 622 | |
| 623 | LazyTaskWriterThread(String name) { |
| 624 | super(name); |
| 625 | } |
| 626 | |
| 627 | @Override |
| 628 | public void run() { |
Riley Andrews | f16c2e8 | 2015-06-02 18:24:48 -0700 | [diff] [blame] | 629 | Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 630 | ArraySet<Integer> persistentTaskIds = new ArraySet<Integer>(); |
| 631 | while (true) { |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 632 | // We can't lock mService while holding TaskPersister.this, but we don't want to |
| 633 | // call removeObsoleteFiles every time through the loop, only the last time before |
| 634 | // going to sleep. The risk is that we call removeObsoleteFiles() successively. |
| 635 | final boolean probablyDone; |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 636 | synchronized (TaskPersister.this) { |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 637 | probablyDone = mWriteQueue.isEmpty(); |
| 638 | } |
| 639 | if (probablyDone) { |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 640 | if (DEBUG) Slog.d(TAG, "Looking for obsolete files."); |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 641 | persistentTaskIds.clear(); |
| 642 | synchronized (mService) { |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 643 | if (DEBUG) Slog.d(TAG, "mRecents=" + mRecentTasks); |
Wale Ogunwale | c82f2f5 | 2014-12-09 09:32:50 -0800 | [diff] [blame] | 644 | for (int taskNdx = mRecentTasks.size() - 1; taskNdx >= 0; --taskNdx) { |
| 645 | final TaskRecord task = mRecentTasks.get(taskNdx); |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 646 | if (DEBUG) Slog.d(TAG, "LazyTaskWriter: task=" + task + |
Wale Ogunwale | be23ff4 | 2014-10-21 16:29:51 -0700 | [diff] [blame] | 647 | " persistable=" + task.isPersistable); |
Andrii Kulian | 02b7a83 | 2016-10-06 23:11:56 -0700 | [diff] [blame] | 648 | final ActivityStack stack = task.getStack(); |
Wale Ogunwale | be23ff4 | 2014-10-21 16:29:51 -0700 | [diff] [blame] | 649 | if ((task.isPersistable || task.inRecents) |
Matthew Ng | ae1ff4f | 2016-11-10 15:49:14 -0800 | [diff] [blame] | 650 | && (stack == null || !stack.isHomeOrRecentsStack())) { |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 651 | if (DEBUG) Slog.d(TAG, "adding to persistentTaskIds task=" + task); |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 652 | persistentTaskIds.add(task.taskId); |
| 653 | } else { |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 654 | if (DEBUG) Slog.d(TAG, |
Wale Ogunwale | be23ff4 | 2014-10-21 16:29:51 -0700 | [diff] [blame] | 655 | "omitting from persistentTaskIds task=" + task); |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 656 | } |
| 657 | } |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 658 | mService.mWindowManager.removeObsoleteTaskFiles(persistentTaskIds, |
| 659 | mRecentTasks.usersWithRecentsLoadedLocked()); |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 660 | } |
| 661 | removeObsoleteFiles(persistentTaskIds); |
| 662 | } |
Suprabh Shukla | 4bccb46 | 2016-02-10 18:45:12 -0800 | [diff] [blame] | 663 | writeTaskIdsFiles(); |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 664 | |
| 665 | // If mNextWriteTime, then don't delay between each call to saveToXml(). |
| 666 | final WriteQueueItem item; |
| 667 | synchronized (TaskPersister.this) { |
Craig Mautner | 63f1090 | 2014-09-16 23:57:21 -0700 | [diff] [blame] | 668 | if (mNextWriteTime != FLUSH_QUEUE) { |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 669 | // The next write we don't have to wait so long. |
| 670 | mNextWriteTime = SystemClock.uptimeMillis() + INTER_WRITE_DELAY_MS; |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 671 | if (DEBUG) Slog.d(TAG, "Next write time may be in " + |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 672 | INTER_WRITE_DELAY_MS + " msec. (" + mNextWriteTime + ")"); |
| 673 | } |
| 674 | |
| 675 | while (mWriteQueue.isEmpty()) { |
Dianne Hackborn | ce0fd76 | 2014-09-19 12:58:15 -0700 | [diff] [blame] | 676 | if (mNextWriteTime != 0) { |
| 677 | mNextWriteTime = 0; // idle. |
| 678 | TaskPersister.this.notifyAll(); // wake up flush() if needed. |
| 679 | } |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 680 | try { |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 681 | if (DEBUG) Slog.d(TAG, "LazyTaskWriter: waiting indefinitely."); |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 682 | TaskPersister.this.wait(); |
| 683 | } catch (InterruptedException e) { |
| 684 | } |
Craig Mautner | 63f1090 | 2014-09-16 23:57:21 -0700 | [diff] [blame] | 685 | // Invariant: mNextWriteTime is either FLUSH_QUEUE or PRE_WRITE_DELAY_MS |
| 686 | // from now. |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 687 | } |
| 688 | item = mWriteQueue.remove(0); |
| 689 | |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 690 | long now = SystemClock.uptimeMillis(); |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 691 | if (DEBUG) Slog.d(TAG, "LazyTaskWriter: now=" + now + " mNextWriteTime=" + |
| 692 | mNextWriteTime + " mWriteQueue.size=" + mWriteQueue.size()); |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 693 | while (now < mNextWriteTime) { |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 694 | try { |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 695 | if (DEBUG) Slog.d(TAG, "LazyTaskWriter: waiting " + |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 696 | (mNextWriteTime - now)); |
| 697 | TaskPersister.this.wait(mNextWriteTime - now); |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 698 | } catch (InterruptedException e) { |
| 699 | } |
| 700 | now = SystemClock.uptimeMillis(); |
| 701 | } |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 702 | |
| 703 | // Got something to do. |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 704 | } |
| 705 | |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 706 | if (item instanceof ImageWriteQueueItem) { |
| 707 | ImageWriteQueueItem imageWriteQueueItem = (ImageWriteQueueItem) item; |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 708 | final String filePath = imageWriteQueueItem.mFilePath; |
Suprabh Shukla | dc4b80d | 2016-04-20 15:24:31 -0700 | [diff] [blame] | 709 | if (!createParentDirectory(filePath)) { |
| 710 | Slog.e(TAG, "Error while creating images directory for file: " + filePath); |
| 711 | continue; |
| 712 | } |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 713 | final Bitmap bitmap = imageWriteQueueItem.mImage; |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 714 | if (DEBUG) Slog.d(TAG, "writing bitmap: filename=" + filePath); |
Craig Mautner | c0ffce5 | 2014-07-01 12:38:52 -0700 | [diff] [blame] | 715 | FileOutputStream imageFile = null; |
| 716 | try { |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 717 | imageFile = new FileOutputStream(new File(filePath)); |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 718 | bitmap.compress(Bitmap.CompressFormat.PNG, 100, imageFile); |
Craig Mautner | c0ffce5 | 2014-07-01 12:38:52 -0700 | [diff] [blame] | 719 | } catch (Exception e) { |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 720 | Slog.e(TAG, "saveImage: unable to save " + filePath, e); |
Craig Mautner | c0ffce5 | 2014-07-01 12:38:52 -0700 | [diff] [blame] | 721 | } finally { |
Wale Ogunwale | 18795a2 | 2014-12-03 11:38:33 -0800 | [diff] [blame] | 722 | IoUtils.closeQuietly(imageFile); |
Craig Mautner | c0ffce5 | 2014-07-01 12:38:52 -0700 | [diff] [blame] | 723 | } |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 724 | } else if (item instanceof TaskWriteQueueItem) { |
| 725 | // Write out one task. |
| 726 | StringWriter stringWriter = null; |
| 727 | TaskRecord task = ((TaskWriteQueueItem) item).mTask; |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 728 | if (DEBUG) Slog.d(TAG, "Writing task=" + task); |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 729 | synchronized (mService) { |
Craig Mautner | 63f1090 | 2014-09-16 23:57:21 -0700 | [diff] [blame] | 730 | if (task.inRecents) { |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 731 | // Still there. |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 732 | try { |
Stefan Kuhne | e88d1e5 | 2015-05-18 10:33:45 -0700 | [diff] [blame] | 733 | if (DEBUG) Slog.d(TAG, "Saving task=" + task); |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 734 | stringWriter = saveToXml(task); |
| 735 | } catch (IOException e) { |
| 736 | } catch (XmlPullParserException e) { |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 737 | } |
| 738 | } |
Dianne Hackborn | 852975d | 2014-08-22 17:42:43 -0700 | [diff] [blame] | 739 | } |
| 740 | if (stringWriter != null) { |
| 741 | // Write out xml file while not holding mService lock. |
| 742 | FileOutputStream file = null; |
| 743 | AtomicFile atomicFile = null; |
| 744 | try { |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 745 | atomicFile = new AtomicFile(new File( |
| 746 | getUserTasksDir(task.userId), |
| 747 | String.valueOf(task.taskId) + RECENTS_FILENAME |
| 748 | + TASK_EXTENSION)); |
Dianne Hackborn | 852975d | 2014-08-22 17:42:43 -0700 | [diff] [blame] | 749 | file = atomicFile.startWrite(); |
| 750 | file.write(stringWriter.toString().getBytes()); |
| 751 | file.write('\n'); |
| 752 | atomicFile.finishWrite(file); |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 753 | |
Dianne Hackborn | 852975d | 2014-08-22 17:42:43 -0700 | [diff] [blame] | 754 | } catch (IOException e) { |
| 755 | if (file != null) { |
| 756 | atomicFile.failWrite(file); |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 757 | } |
Suprabh Shukla | 2359314 | 2015-11-03 17:31:15 -0800 | [diff] [blame] | 758 | Slog.e(TAG, |
| 759 | "Unable to open " + atomicFile + " for persisting. " + e); |
Craig Mautner | f4f8bb7 | 2014-07-29 10:41:40 -0700 | [diff] [blame] | 760 | } |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 761 | } |
| 762 | } |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 763 | } |
| 764 | } |
| 765 | } |
Craig Mautner | 21d24a2 | 2014-04-23 11:45:37 -0700 | [diff] [blame] | 766 | } |