Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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.wm; |
| 18 | |
Winson Chung | 48b2565 | 2018-10-22 14:04:30 -0700 | [diff] [blame] | 19 | import static android.graphics.Bitmap.CompressFormat.JPEG; |
Tim Murray | af85392 | 2018-10-15 16:50:23 -0700 | [diff] [blame] | 20 | |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 21 | import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME; |
| 22 | import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM; |
| 23 | |
Peter Kalauskas | 84f02a8 | 2020-01-22 16:06:18 -0800 | [diff] [blame] | 24 | import android.annotation.NonNull; |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 25 | import android.annotation.TestApi; |
| 26 | import android.app.ActivityManager.TaskSnapshot; |
| 27 | import android.graphics.Bitmap; |
Jorim Jaggi | 2dae855 | 2017-05-02 14:10:58 +0200 | [diff] [blame] | 28 | import android.graphics.Bitmap.Config; |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 29 | import android.os.Process; |
| 30 | import android.os.SystemClock; |
Guo Li | 2f9987f | 2020-04-23 21:39:01 +0800 | [diff] [blame] | 31 | import android.os.UserManagerInternal; |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 32 | import android.util.ArraySet; |
Al Sutton | 7407e2c | 2019-09-06 09:17:01 +0100 | [diff] [blame] | 33 | import android.util.AtomicFile; |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 34 | import android.util.Slog; |
| 35 | |
| 36 | import com.android.internal.annotations.GuardedBy; |
| 37 | import com.android.internal.annotations.VisibleForTesting; |
Guo Li | 2f9987f | 2020-04-23 21:39:01 +0800 | [diff] [blame] | 38 | import com.android.server.LocalServices; |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 39 | import com.android.server.wm.nano.WindowManagerProtos.TaskSnapshotProto; |
| 40 | |
| 41 | import java.io.File; |
| 42 | import java.io.FileOutputStream; |
| 43 | import java.io.IOException; |
| 44 | import java.util.ArrayDeque; |
Jorim Jaggi | 2b78b1f | 2018-06-18 15:48:06 +0200 | [diff] [blame] | 45 | import java.util.Arrays; |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 46 | |
| 47 | /** |
| 48 | * Persists {@link TaskSnapshot}s to disk. |
| 49 | * <p> |
| 50 | * Test class: {@link TaskSnapshotPersisterLoaderTest} |
| 51 | */ |
| 52 | class TaskSnapshotPersister { |
| 53 | |
| 54 | private static final String TAG = TAG_WITH_CLASS_NAME ? "TaskSnapshotPersister" : TAG_WM; |
| 55 | private static final String SNAPSHOTS_DIRNAME = "snapshots"; |
Peter Kalauskas | 4dc0460 | 2020-02-12 18:49:03 -0800 | [diff] [blame] | 56 | private static final String LOW_RES_FILE_POSTFIX = "_reduced"; |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 57 | private static final long DELAY_MS = 100; |
Jorim Jaggi | 35e3f53 | 2017-03-17 17:06:50 +0100 | [diff] [blame] | 58 | private static final int QUALITY = 95; |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 59 | private static final String PROTO_EXTENSION = ".proto"; |
Jorim Jaggi | 35e3f53 | 2017-03-17 17:06:50 +0100 | [diff] [blame] | 60 | private static final String BITMAP_EXTENSION = ".jpg"; |
Jorim Jaggi | ef3651c | 2017-05-18 23:58:09 +0200 | [diff] [blame] | 61 | private static final int MAX_STORE_QUEUE_DEPTH = 2; |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 62 | |
| 63 | @GuardedBy("mLock") |
| 64 | private final ArrayDeque<WriteQueueItem> mWriteQueue = new ArrayDeque<>(); |
| 65 | @GuardedBy("mLock") |
Jorim Jaggi | ef3651c | 2017-05-18 23:58:09 +0200 | [diff] [blame] | 66 | private final ArrayDeque<StoreWriteQueueItem> mStoreQueueItems = new ArrayDeque<>(); |
| 67 | @GuardedBy("mLock") |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 68 | private boolean mQueueIdling; |
Jorim Jaggi | a41b729 | 2017-05-11 23:50:34 +0200 | [diff] [blame] | 69 | @GuardedBy("mLock") |
| 70 | private boolean mPaused; |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 71 | private boolean mStarted; |
| 72 | private final Object mLock = new Object(); |
| 73 | private final DirectoryResolver mDirectoryResolver; |
Peter Kalauskas | 84f02a8 | 2020-01-22 16:06:18 -0800 | [diff] [blame] | 74 | private final float mLowResScaleFactor; |
| 75 | private boolean mEnableLowResSnapshots; |
Chiawei Wang | 02202d1 | 2019-01-03 18:12:13 +0800 | [diff] [blame] | 76 | private final boolean mUse16BitFormat; |
Guo Li | 2f9987f | 2020-04-23 21:39:01 +0800 | [diff] [blame] | 77 | private final UserManagerInternal mUserManagerInternal; |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 78 | |
| 79 | /** |
| 80 | * The list of ids of the tasks that have been persisted since {@link #removeObsoleteFiles} was |
| 81 | * called. |
| 82 | */ |
| 83 | @GuardedBy("mLock") |
| 84 | private final ArraySet<Integer> mPersistedTaskIdsSinceLastRemoveObsolete = new ArraySet<>(); |
| 85 | |
Kevin | 716a9db | 2018-12-18 16:53:39 -0800 | [diff] [blame] | 86 | TaskSnapshotPersister(WindowManagerService service, DirectoryResolver resolver) { |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 87 | mDirectoryResolver = resolver; |
Guo Li | 2f9987f | 2020-04-23 21:39:01 +0800 | [diff] [blame] | 88 | mUserManagerInternal = LocalServices.getService(UserManagerInternal.class); |
| 89 | |
Peter Kalauskas | 84f02a8 | 2020-01-22 16:06:18 -0800 | [diff] [blame] | 90 | final float highResTaskSnapshotScale = service.mContext.getResources().getFloat( |
| 91 | com.android.internal.R.dimen.config_highResTaskSnapshotScale); |
| 92 | final float lowResTaskSnapshotScale = service.mContext.getResources().getFloat( |
| 93 | com.android.internal.R.dimen.config_lowResTaskSnapshotScale); |
Peter Kalauskas | e934da9 | 2020-01-21 15:15:22 -0800 | [diff] [blame] | 94 | |
Peter Kalauskas | 84f02a8 | 2020-01-22 16:06:18 -0800 | [diff] [blame] | 95 | if (lowResTaskSnapshotScale < 0 || 1 <= lowResTaskSnapshotScale) { |
| 96 | throw new RuntimeException("Low-res scale must be between 0 and 1"); |
Peter Kalauskas | e934da9 | 2020-01-21 15:15:22 -0800 | [diff] [blame] | 97 | } |
Peter Kalauskas | 84f02a8 | 2020-01-22 16:06:18 -0800 | [diff] [blame] | 98 | if (highResTaskSnapshotScale <= 0 || 1 < highResTaskSnapshotScale) { |
| 99 | throw new RuntimeException("High-res scale must be between 0 and 1"); |
| 100 | } |
| 101 | if (highResTaskSnapshotScale <= lowResTaskSnapshotScale) { |
| 102 | throw new RuntimeException("High-res scale must be greater than low-res scale"); |
| 103 | } |
| 104 | |
| 105 | if (lowResTaskSnapshotScale > 0) { |
| 106 | mLowResScaleFactor = lowResTaskSnapshotScale / highResTaskSnapshotScale; |
Peter Kalauskas | c3cc8b9 | 2020-03-09 18:55:04 -0700 | [diff] [blame] | 107 | mEnableLowResSnapshots = true; |
Peter Kalauskas | 84f02a8 | 2020-01-22 16:06:18 -0800 | [diff] [blame] | 108 | } else { |
| 109 | mLowResScaleFactor = 0; |
Peter Kalauskas | c3cc8b9 | 2020-03-09 18:55:04 -0700 | [diff] [blame] | 110 | mEnableLowResSnapshots = false; |
Peter Kalauskas | 84f02a8 | 2020-01-22 16:06:18 -0800 | [diff] [blame] | 111 | } |
| 112 | |
Chiawei Wang | 02202d1 | 2019-01-03 18:12:13 +0800 | [diff] [blame] | 113 | mUse16BitFormat = service.mContext.getResources().getBoolean( |
| 114 | com.android.internal.R.bool.config_use16BitTaskSnapshotPixelFormat); |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 115 | } |
| 116 | |
| 117 | /** |
| 118 | * Starts persisting. |
| 119 | */ |
| 120 | void start() { |
| 121 | if (!mStarted) { |
| 122 | mStarted = true; |
| 123 | mPersister.start(); |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | /** |
| 128 | * Persists a snapshot of a task to disk. |
| 129 | * |
| 130 | * @param taskId The id of the task that needs to be persisted. |
| 131 | * @param userId The id of the user this tasks belongs to. |
| 132 | * @param snapshot The snapshot to persist. |
| 133 | */ |
| 134 | void persistSnapshot(int taskId, int userId, TaskSnapshot snapshot) { |
| 135 | synchronized (mLock) { |
| 136 | mPersistedTaskIdsSinceLastRemoveObsolete.add(taskId); |
| 137 | sendToQueueLocked(new StoreWriteQueueItem(taskId, userId, snapshot)); |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * Callend when a task has been removed. |
| 143 | * |
| 144 | * @param taskId The id of task that has been removed. |
| 145 | * @param userId The id of the user the task belonged to. |
| 146 | */ |
| 147 | void onTaskRemovedFromRecents(int taskId, int userId) { |
| 148 | synchronized (mLock) { |
| 149 | mPersistedTaskIdsSinceLastRemoveObsolete.remove(taskId); |
| 150 | sendToQueueLocked(new DeleteWriteQueueItem(taskId, userId)); |
| 151 | } |
| 152 | } |
| 153 | |
| 154 | /** |
| 155 | * In case a write/delete operation was lost because the system crashed, this makes sure to |
| 156 | * clean up the directory to remove obsolete files. |
| 157 | * |
| 158 | * @param persistentTaskIds A set of task ids that exist in our in-memory model. |
| 159 | * @param runningUserIds The ids of the list of users that have tasks loaded in our in-memory |
| 160 | * model. |
| 161 | */ |
| 162 | void removeObsoleteFiles(ArraySet<Integer> persistentTaskIds, int[] runningUserIds) { |
| 163 | synchronized (mLock) { |
| 164 | mPersistedTaskIdsSinceLastRemoveObsolete.clear(); |
| 165 | sendToQueueLocked(new RemoveObsoleteFilesQueueItem(persistentTaskIds, runningUserIds)); |
| 166 | } |
| 167 | } |
| 168 | |
Jorim Jaggi | a41b729 | 2017-05-11 23:50:34 +0200 | [diff] [blame] | 169 | void setPaused(boolean paused) { |
| 170 | synchronized (mLock) { |
| 171 | mPaused = paused; |
| 172 | if (!paused) { |
| 173 | mLock.notifyAll(); |
| 174 | } |
| 175 | } |
| 176 | } |
| 177 | |
Peter Kalauskas | 84f02a8 | 2020-01-22 16:06:18 -0800 | [diff] [blame] | 178 | boolean enableLowResSnapshots() { |
| 179 | return mEnableLowResSnapshots; |
| 180 | } |
| 181 | |
Kevin | 716a9db | 2018-12-18 16:53:39 -0800 | [diff] [blame] | 182 | /** |
Chiawei Wang | 02202d1 | 2019-01-03 18:12:13 +0800 | [diff] [blame] | 183 | * Return if task snapshots are stored in 16 bit pixel format. |
| 184 | * |
| 185 | * @return true if task snapshots are stored in 16 bit pixel format. |
| 186 | */ |
| 187 | boolean use16BitFormat() { |
| 188 | return mUse16BitFormat; |
| 189 | } |
| 190 | |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 191 | @TestApi |
| 192 | void waitForQueueEmpty() { |
| 193 | while (true) { |
| 194 | synchronized (mLock) { |
| 195 | if (mWriteQueue.isEmpty() && mQueueIdling) { |
| 196 | return; |
| 197 | } |
| 198 | } |
Guo Li | 2f9987f | 2020-04-23 21:39:01 +0800 | [diff] [blame] | 199 | SystemClock.sleep(DELAY_MS); |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 200 | } |
| 201 | } |
| 202 | |
| 203 | @GuardedBy("mLock") |
| 204 | private void sendToQueueLocked(WriteQueueItem item) { |
| 205 | mWriteQueue.offer(item); |
Jorim Jaggi | ef3651c | 2017-05-18 23:58:09 +0200 | [diff] [blame] | 206 | item.onQueuedLocked(); |
| 207 | ensureStoreQueueDepthLocked(); |
Jorim Jaggi | a41b729 | 2017-05-11 23:50:34 +0200 | [diff] [blame] | 208 | if (!mPaused) { |
| 209 | mLock.notifyAll(); |
| 210 | } |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 211 | } |
| 212 | |
Jorim Jaggi | ef3651c | 2017-05-18 23:58:09 +0200 | [diff] [blame] | 213 | @GuardedBy("mLock") |
| 214 | private void ensureStoreQueueDepthLocked() { |
| 215 | while (mStoreQueueItems.size() > MAX_STORE_QUEUE_DEPTH) { |
| 216 | final StoreWriteQueueItem item = mStoreQueueItems.poll(); |
| 217 | mWriteQueue.remove(item); |
| 218 | Slog.i(TAG, "Queue is too deep! Purged item with taskid=" + item.mTaskId); |
| 219 | } |
| 220 | } |
| 221 | |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 222 | private File getDirectory(int userId) { |
| 223 | return new File(mDirectoryResolver.getSystemDirectoryForUser(userId), SNAPSHOTS_DIRNAME); |
| 224 | } |
| 225 | |
| 226 | File getProtoFile(int taskId, int userId) { |
| 227 | return new File(getDirectory(userId), taskId + PROTO_EXTENSION); |
| 228 | } |
| 229 | |
Peter Kalauskas | 4dc0460 | 2020-02-12 18:49:03 -0800 | [diff] [blame] | 230 | File getHighResolutionBitmapFile(int taskId, int userId) { |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 231 | return new File(getDirectory(userId), taskId + BITMAP_EXTENSION); |
| 232 | } |
| 233 | |
Peter Kalauskas | 84f02a8 | 2020-01-22 16:06:18 -0800 | [diff] [blame] | 234 | @NonNull |
Peter Kalauskas | 4dc0460 | 2020-02-12 18:49:03 -0800 | [diff] [blame] | 235 | File getLowResolutionBitmapFile(int taskId, int userId) { |
| 236 | return new File(getDirectory(userId), taskId + LOW_RES_FILE_POSTFIX + BITMAP_EXTENSION); |
Jorim Jaggi | 35e3f53 | 2017-03-17 17:06:50 +0100 | [diff] [blame] | 237 | } |
| 238 | |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 239 | private boolean createDirectory(int userId) { |
| 240 | final File dir = getDirectory(userId); |
Guo Li | 2f9987f | 2020-04-23 21:39:01 +0800 | [diff] [blame] | 241 | return dir.exists() || dir.mkdir(); |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 242 | } |
| 243 | |
| 244 | private void deleteSnapshot(int taskId, int userId) { |
| 245 | final File protoFile = getProtoFile(taskId, userId); |
Peter Kalauskas | 4dc0460 | 2020-02-12 18:49:03 -0800 | [diff] [blame] | 246 | final File bitmapLowResFile = getLowResolutionBitmapFile(taskId, userId); |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 247 | protoFile.delete(); |
Peter Kalauskas | 84f02a8 | 2020-01-22 16:06:18 -0800 | [diff] [blame] | 248 | if (bitmapLowResFile.exists()) { |
| 249 | bitmapLowResFile.delete(); |
| 250 | } |
| 251 | final File bitmapFile = getHighResolutionBitmapFile(taskId, userId); |
| 252 | if (bitmapFile.exists()) { |
Matthew Ng | cb7ac67 | 2017-07-21 17:27:42 -0700 | [diff] [blame] | 253 | bitmapFile.delete(); |
| 254 | } |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 255 | } |
| 256 | |
| 257 | interface DirectoryResolver { |
| 258 | File getSystemDirectoryForUser(int userId); |
| 259 | } |
| 260 | |
| 261 | private Thread mPersister = new Thread("TaskSnapshotPersister") { |
| 262 | public void run() { |
| 263 | android.os.Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); |
| 264 | while (true) { |
| 265 | WriteQueueItem next; |
Guo Li | 2f9987f | 2020-04-23 21:39:01 +0800 | [diff] [blame] | 266 | boolean isReadyToWrite = false; |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 267 | synchronized (mLock) { |
Jorim Jaggi | a41b729 | 2017-05-11 23:50:34 +0200 | [diff] [blame] | 268 | if (mPaused) { |
| 269 | next = null; |
| 270 | } else { |
| 271 | next = mWriteQueue.poll(); |
Jorim Jaggi | ef3651c | 2017-05-18 23:58:09 +0200 | [diff] [blame] | 272 | if (next != null) { |
Guo Li | 2f9987f | 2020-04-23 21:39:01 +0800 | [diff] [blame] | 273 | if (next.isReady()) { |
| 274 | isReadyToWrite = true; |
| 275 | next.onDequeuedLocked(); |
| 276 | } else { |
| 277 | mWriteQueue.addLast(next); |
| 278 | } |
Jorim Jaggi | ef3651c | 2017-05-18 23:58:09 +0200 | [diff] [blame] | 279 | } |
Jorim Jaggi | a41b729 | 2017-05-11 23:50:34 +0200 | [diff] [blame] | 280 | } |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 281 | } |
| 282 | if (next != null) { |
Guo Li | 2f9987f | 2020-04-23 21:39:01 +0800 | [diff] [blame] | 283 | if (isReadyToWrite) { |
| 284 | next.write(); |
| 285 | } |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 286 | SystemClock.sleep(DELAY_MS); |
| 287 | } |
| 288 | synchronized (mLock) { |
Jorim Jaggi | 2f9c7a2 | 2017-05-16 14:03:08 +0200 | [diff] [blame] | 289 | final boolean writeQueueEmpty = mWriteQueue.isEmpty(); |
| 290 | if (!writeQueueEmpty && !mPaused) { |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 291 | continue; |
| 292 | } |
| 293 | try { |
Jorim Jaggi | 2f9c7a2 | 2017-05-16 14:03:08 +0200 | [diff] [blame] | 294 | mQueueIdling = writeQueueEmpty; |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 295 | mLock.wait(); |
| 296 | mQueueIdling = false; |
| 297 | } catch (InterruptedException e) { |
| 298 | } |
| 299 | } |
| 300 | } |
| 301 | } |
| 302 | }; |
| 303 | |
| 304 | private abstract class WriteQueueItem { |
Guo Li | 2f9987f | 2020-04-23 21:39:01 +0800 | [diff] [blame] | 305 | /** |
| 306 | * @return {@code true} if item is ready to have {@link WriteQueueItem#write} called |
| 307 | */ |
| 308 | boolean isReady() { |
| 309 | return true; |
| 310 | } |
| 311 | |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 312 | abstract void write(); |
Jorim Jaggi | ef3651c | 2017-05-18 23:58:09 +0200 | [diff] [blame] | 313 | |
| 314 | /** |
| 315 | * Called when this queue item has been put into the queue. |
| 316 | */ |
| 317 | void onQueuedLocked() { |
| 318 | } |
| 319 | |
| 320 | /** |
| 321 | * Called when this queue item has been taken out of the queue. |
| 322 | */ |
| 323 | void onDequeuedLocked() { |
| 324 | } |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 325 | } |
| 326 | |
| 327 | private class StoreWriteQueueItem extends WriteQueueItem { |
| 328 | private final int mTaskId; |
| 329 | private final int mUserId; |
| 330 | private final TaskSnapshot mSnapshot; |
| 331 | |
| 332 | StoreWriteQueueItem(int taskId, int userId, TaskSnapshot snapshot) { |
| 333 | mTaskId = taskId; |
| 334 | mUserId = userId; |
| 335 | mSnapshot = snapshot; |
| 336 | } |
| 337 | |
Andreas Gampe | a36dc62 | 2018-02-05 17:19:22 -0800 | [diff] [blame] | 338 | @GuardedBy("mLock") |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 339 | @Override |
Jorim Jaggi | ef3651c | 2017-05-18 23:58:09 +0200 | [diff] [blame] | 340 | void onQueuedLocked() { |
| 341 | mStoreQueueItems.offer(this); |
| 342 | } |
| 343 | |
Andreas Gampe | a36dc62 | 2018-02-05 17:19:22 -0800 | [diff] [blame] | 344 | @GuardedBy("mLock") |
Jorim Jaggi | ef3651c | 2017-05-18 23:58:09 +0200 | [diff] [blame] | 345 | @Override |
| 346 | void onDequeuedLocked() { |
| 347 | mStoreQueueItems.remove(this); |
| 348 | } |
| 349 | |
| 350 | @Override |
Guo Li | 2f9987f | 2020-04-23 21:39:01 +0800 | [diff] [blame] | 351 | boolean isReady() { |
| 352 | return mUserManagerInternal.isUserUnlocked(mUserId); |
| 353 | } |
| 354 | |
| 355 | @Override |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 356 | void write() { |
| 357 | if (!createDirectory(mUserId)) { |
| 358 | Slog.e(TAG, "Unable to create snapshot directory for user dir=" |
| 359 | + getDirectory(mUserId)); |
| 360 | } |
| 361 | boolean failed = false; |
| 362 | if (!writeProto()) { |
| 363 | failed = true; |
| 364 | } |
| 365 | if (!writeBuffer()) { |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 366 | failed = true; |
| 367 | } |
| 368 | if (failed) { |
| 369 | deleteSnapshot(mTaskId, mUserId); |
| 370 | } |
| 371 | } |
| 372 | |
| 373 | boolean writeProto() { |
| 374 | final TaskSnapshotProto proto = new TaskSnapshotProto(); |
| 375 | proto.orientation = mSnapshot.getOrientation(); |
Vinit Nayak | ffd9dff | 2019-11-05 15:20:11 -0800 | [diff] [blame] | 376 | proto.rotation = mSnapshot.getRotation(); |
Peter Kalauskas | fe0a413 | 2020-01-31 16:50:42 -0800 | [diff] [blame] | 377 | proto.taskWidth = mSnapshot.getTaskSize().x; |
| 378 | proto.taskHeight = mSnapshot.getTaskSize().y; |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 379 | proto.insetLeft = mSnapshot.getContentInsets().left; |
| 380 | proto.insetTop = mSnapshot.getContentInsets().top; |
| 381 | proto.insetRight = mSnapshot.getContentInsets().right; |
| 382 | proto.insetBottom = mSnapshot.getContentInsets().bottom; |
Winson Chung | f3e412e | 2018-03-08 11:07:40 -0800 | [diff] [blame] | 383 | proto.isRealSnapshot = mSnapshot.isRealSnapshot(); |
Winson Chung | a4fa8d5 | 2018-04-20 15:54:51 -0700 | [diff] [blame] | 384 | proto.windowingMode = mSnapshot.getWindowingMode(); |
Winson Chung | 173020c | 2018-05-04 15:36:47 -0700 | [diff] [blame] | 385 | proto.systemUiVisibility = mSnapshot.getSystemUiVisibility(); |
| 386 | proto.isTranslucent = mSnapshot.isTranslucent(); |
Winson Chung | 48b2565 | 2018-10-22 14:04:30 -0700 | [diff] [blame] | 387 | proto.topActivityComponent = mSnapshot.getTopActivityComponent().flattenToString(); |
Hongwei Wang | 3b9bdcf | 2019-07-15 10:23:03 -0700 | [diff] [blame] | 388 | proto.id = mSnapshot.getId(); |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 389 | final byte[] bytes = TaskSnapshotProto.toByteArray(proto); |
| 390 | final File file = getProtoFile(mTaskId, mUserId); |
| 391 | final AtomicFile atomicFile = new AtomicFile(file); |
| 392 | FileOutputStream fos = null; |
| 393 | try { |
| 394 | fos = atomicFile.startWrite(); |
| 395 | fos.write(bytes); |
| 396 | atomicFile.finishWrite(fos); |
| 397 | } catch (IOException e) { |
| 398 | atomicFile.failWrite(fos); |
| 399 | Slog.e(TAG, "Unable to open " + file + " for persisting. " + e); |
| 400 | return false; |
| 401 | } |
| 402 | return true; |
| 403 | } |
| 404 | |
| 405 | boolean writeBuffer() { |
Peiyong Lin | 9d42740 | 2019-01-23 18:39:06 -0800 | [diff] [blame] | 406 | final Bitmap bitmap = Bitmap.wrapHardwareBuffer( |
Sunny Goyal | 62915b2 | 2019-04-10 12:28:47 -0700 | [diff] [blame] | 407 | mSnapshot.getSnapshot(), mSnapshot.getColorSpace()); |
Winson Chung | dab1673 | 2017-06-19 17:00:40 -0700 | [diff] [blame] | 408 | if (bitmap == null) { |
Winson Chung | 3e13ef8 | 2017-06-29 12:41:14 -0700 | [diff] [blame] | 409 | Slog.e(TAG, "Invalid task snapshot hw bitmap"); |
Winson Chung | dab1673 | 2017-06-19 17:00:40 -0700 | [diff] [blame] | 410 | return false; |
| 411 | } |
| 412 | |
Jorim Jaggi | 2dae855 | 2017-05-02 14:10:58 +0200 | [diff] [blame] | 413 | final Bitmap swBitmap = bitmap.copy(Config.ARGB_8888, false /* isMutable */); |
Peter Kalauskas | 84f02a8 | 2020-01-22 16:06:18 -0800 | [diff] [blame] | 414 | |
| 415 | final File file = getHighResolutionBitmapFile(mTaskId, mUserId); |
| 416 | try { |
| 417 | FileOutputStream fos = new FileOutputStream(file); |
| 418 | swBitmap.compress(JPEG, QUALITY, fos); |
| 419 | fos.close(); |
| 420 | } catch (IOException e) { |
| 421 | Slog.e(TAG, "Unable to open " + file + " for persisting.", e); |
| 422 | return false; |
| 423 | } |
| 424 | |
Peter Kalauskas | c3cc8b9 | 2020-03-09 18:55:04 -0700 | [diff] [blame] | 425 | if (!mEnableLowResSnapshots) { |
Peter Kalauskas | 84f02a8 | 2020-01-22 16:06:18 -0800 | [diff] [blame] | 426 | swBitmap.recycle(); |
| 427 | return true; |
| 428 | } |
| 429 | |
| 430 | final Bitmap lowResBitmap = Bitmap.createScaledBitmap(swBitmap, |
| 431 | (int) (bitmap.getWidth() * mLowResScaleFactor), |
| 432 | (int) (bitmap.getHeight() * mLowResScaleFactor), true /* filter */); |
| 433 | swBitmap.recycle(); |
Winson Chung | ffde2ea | 2019-06-17 17:19:13 -0700 | [diff] [blame] | 434 | |
Peter Kalauskas | 4dc0460 | 2020-02-12 18:49:03 -0800 | [diff] [blame] | 435 | final File lowResFile = getLowResolutionBitmapFile(mTaskId, mUserId); |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 436 | try { |
Peter Kalauskas | 4dc0460 | 2020-02-12 18:49:03 -0800 | [diff] [blame] | 437 | FileOutputStream lowResFos = new FileOutputStream(lowResFile); |
| 438 | lowResBitmap.compress(JPEG, QUALITY, lowResFos); |
| 439 | lowResFos.close(); |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 440 | } catch (IOException e) { |
Peter Kalauskas | 4dc0460 | 2020-02-12 18:49:03 -0800 | [diff] [blame] | 441 | Slog.e(TAG, "Unable to open " + lowResFile + " for persisting.", e); |
Matthew Ng | cb7ac67 | 2017-07-21 17:27:42 -0700 | [diff] [blame] | 442 | return false; |
| 443 | } |
Peter Kalauskas | 4dc0460 | 2020-02-12 18:49:03 -0800 | [diff] [blame] | 444 | lowResBitmap.recycle(); |
Matthew Ng | cb7ac67 | 2017-07-21 17:27:42 -0700 | [diff] [blame] | 445 | |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 446 | return true; |
| 447 | } |
| 448 | } |
| 449 | |
| 450 | private class DeleteWriteQueueItem extends WriteQueueItem { |
| 451 | private final int mTaskId; |
| 452 | private final int mUserId; |
| 453 | |
| 454 | DeleteWriteQueueItem(int taskId, int userId) { |
| 455 | mTaskId = taskId; |
| 456 | mUserId = userId; |
| 457 | } |
| 458 | |
| 459 | @Override |
| 460 | void write() { |
| 461 | deleteSnapshot(mTaskId, mUserId); |
| 462 | } |
| 463 | } |
| 464 | |
| 465 | @VisibleForTesting |
| 466 | class RemoveObsoleteFilesQueueItem extends WriteQueueItem { |
| 467 | private final ArraySet<Integer> mPersistentTaskIds; |
| 468 | private final int[] mRunningUserIds; |
| 469 | |
| 470 | @VisibleForTesting |
| 471 | RemoveObsoleteFilesQueueItem(ArraySet<Integer> persistentTaskIds, |
| 472 | int[] runningUserIds) { |
Jorim Jaggi | 2b78b1f | 2018-06-18 15:48:06 +0200 | [diff] [blame] | 473 | mPersistentTaskIds = new ArraySet<>(persistentTaskIds); |
| 474 | mRunningUserIds = Arrays.copyOf(runningUserIds, runningUserIds.length); |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 475 | } |
| 476 | |
| 477 | @Override |
| 478 | void write() { |
| 479 | final ArraySet<Integer> newPersistedTaskIds; |
| 480 | synchronized (mLock) { |
| 481 | newPersistedTaskIds = new ArraySet<>(mPersistedTaskIdsSinceLastRemoveObsolete); |
| 482 | } |
| 483 | for (int userId : mRunningUserIds) { |
| 484 | final File dir = getDirectory(userId); |
| 485 | final String[] files = dir.list(); |
| 486 | if (files == null) { |
| 487 | continue; |
| 488 | } |
| 489 | for (String file : files) { |
| 490 | final int taskId = getTaskId(file); |
| 491 | if (!mPersistentTaskIds.contains(taskId) |
| 492 | && !newPersistedTaskIds.contains(taskId)) { |
| 493 | new File(dir, file).delete(); |
| 494 | } |
| 495 | } |
| 496 | } |
| 497 | } |
| 498 | |
| 499 | @VisibleForTesting |
| 500 | int getTaskId(String fileName) { |
| 501 | if (!fileName.endsWith(PROTO_EXTENSION) && !fileName.endsWith(BITMAP_EXTENSION)) { |
| 502 | return -1; |
| 503 | } |
| 504 | final int end = fileName.lastIndexOf('.'); |
| 505 | if (end == -1) { |
| 506 | return -1; |
| 507 | } |
Jorim Jaggi | 35e3f53 | 2017-03-17 17:06:50 +0100 | [diff] [blame] | 508 | String name = fileName.substring(0, end); |
Peter Kalauskas | 4dc0460 | 2020-02-12 18:49:03 -0800 | [diff] [blame] | 509 | if (name.endsWith(LOW_RES_FILE_POSTFIX)) { |
| 510 | name = name.substring(0, name.length() - LOW_RES_FILE_POSTFIX.length()); |
Jorim Jaggi | 35e3f53 | 2017-03-17 17:06:50 +0100 | [diff] [blame] | 511 | } |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 512 | try { |
Jorim Jaggi | 35e3f53 | 2017-03-17 17:06:50 +0100 | [diff] [blame] | 513 | return Integer.parseInt(name); |
Jorim Jaggi | f9084ec | 2017-01-16 13:16:59 +0100 | [diff] [blame] | 514 | } catch (NumberFormatException e) { |
| 515 | return -1; |
| 516 | } |
| 517 | } |
| 518 | } |
| 519 | } |