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