BroadcastQueue.java revision 9c165d76010d9f79f5cd71978742a335b6b8d1b4
1/* 2 * Copyright (C) 2012 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 17package com.android.server.am; 18 19import java.io.FileDescriptor; 20import java.io.PrintWriter; 21import java.text.SimpleDateFormat; 22import java.util.ArrayList; 23import java.util.Date; 24import java.util.Set; 25 26import android.app.ActivityManager; 27import android.app.AppGlobals; 28import android.app.AppOpsManager; 29import android.app.BroadcastOptions; 30import android.app.PendingIntent; 31import android.content.ComponentName; 32import android.content.IIntentReceiver; 33import android.content.IIntentSender; 34import android.content.Intent; 35import android.content.IntentSender; 36import android.content.pm.ActivityInfo; 37import android.content.pm.PackageManager; 38import android.content.pm.ResolveInfo; 39import android.os.Build; 40import android.os.Bundle; 41import android.os.Handler; 42import android.os.IBinder; 43import android.os.Looper; 44import android.os.Message; 45import android.os.Process; 46import android.os.RemoteException; 47import android.os.SystemClock; 48import android.os.UserHandle; 49import android.util.EventLog; 50import android.util.Slog; 51import android.util.TimeUtils; 52import com.android.server.DeviceIdleController; 53import com.android.server.LocalServices; 54 55import static com.android.server.am.ActivityManagerDebugConfig.*; 56 57/** 58 * BROADCASTS 59 * 60 * We keep two broadcast queues and associated bookkeeping, one for those at 61 * foreground priority, and one for normal (background-priority) broadcasts. 62 */ 63public final class BroadcastQueue { 64 private static final String TAG = "BroadcastQueue"; 65 private static final String TAG_MU = TAG + POSTFIX_MU; 66 private static final String TAG_BROADCAST = TAG + POSTFIX_BROADCAST; 67 68 static final int MAX_BROADCAST_HISTORY = ActivityManager.isLowRamDeviceStatic() ? 10 : 50; 69 static final int MAX_BROADCAST_SUMMARY_HISTORY 70 = ActivityManager.isLowRamDeviceStatic() ? 25 : 300; 71 72 final ActivityManagerService mService; 73 74 /** 75 * Recognizable moniker for this queue 76 */ 77 final String mQueueName; 78 79 /** 80 * Timeout period for this queue's broadcasts 81 */ 82 final long mTimeoutPeriod; 83 84 /** 85 * If true, we can delay broadcasts while waiting services to finish in the previous 86 * receiver's process. 87 */ 88 final boolean mDelayBehindServices; 89 90 /** 91 * Lists of all active broadcasts that are to be executed immediately 92 * (without waiting for another broadcast to finish). Currently this only 93 * contains broadcasts to registered receivers, to avoid spinning up 94 * a bunch of processes to execute IntentReceiver components. Background- 95 * and foreground-priority broadcasts are queued separately. 96 */ 97 final ArrayList<BroadcastRecord> mParallelBroadcasts = new ArrayList<>(); 98 99 /** 100 * List of all active broadcasts that are to be executed one at a time. 101 * The object at the top of the list is the currently activity broadcasts; 102 * those after it are waiting for the top to finish. As with parallel 103 * broadcasts, separate background- and foreground-priority queues are 104 * maintained. 105 */ 106 final ArrayList<BroadcastRecord> mOrderedBroadcasts = new ArrayList<>(); 107 108 /** 109 * Historical data of past broadcasts, for debugging. This is a ring buffer 110 * whose last element is at mHistoryNext. 111 */ 112 final BroadcastRecord[] mBroadcastHistory = new BroadcastRecord[MAX_BROADCAST_HISTORY]; 113 int mHistoryNext = 0; 114 115 /** 116 * Summary of historical data of past broadcasts, for debugging. This is a 117 * ring buffer whose last element is at mSummaryHistoryNext. 118 */ 119 final Intent[] mBroadcastSummaryHistory = new Intent[MAX_BROADCAST_SUMMARY_HISTORY]; 120 int mSummaryHistoryNext = 0; 121 122 /** 123 * Various milestone timestamps of entries in the mBroadcastSummaryHistory ring 124 * buffer, also tracked via the mSummaryHistoryNext index. These are all in wall 125 * clock time, not elapsed. 126 */ 127 final long[] mSummaryHistoryEnqueueTime = new long[MAX_BROADCAST_SUMMARY_HISTORY]; 128 final long[] mSummaryHistoryDispatchTime = new long[MAX_BROADCAST_SUMMARY_HISTORY]; 129 final long[] mSummaryHistoryFinishTime = new long[MAX_BROADCAST_SUMMARY_HISTORY]; 130 131 /** 132 * Set when we current have a BROADCAST_INTENT_MSG in flight. 133 */ 134 boolean mBroadcastsScheduled = false; 135 136 /** 137 * True if we have a pending unexpired BROADCAST_TIMEOUT_MSG posted to our handler. 138 */ 139 boolean mPendingBroadcastTimeoutMessage; 140 141 /** 142 * Intent broadcasts that we have tried to start, but are 143 * waiting for the application's process to be created. We only 144 * need one per scheduling class (instead of a list) because we always 145 * process broadcasts one at a time, so no others can be started while 146 * waiting for this one. 147 */ 148 BroadcastRecord mPendingBroadcast = null; 149 150 /** 151 * The receiver index that is pending, to restart the broadcast if needed. 152 */ 153 int mPendingBroadcastRecvIndex; 154 155 static final int BROADCAST_INTENT_MSG = ActivityManagerService.FIRST_BROADCAST_QUEUE_MSG; 156 static final int BROADCAST_TIMEOUT_MSG = ActivityManagerService.FIRST_BROADCAST_QUEUE_MSG + 1; 157 static final int SCHEDULE_TEMP_WHITELIST_MSG 158 = ActivityManagerService.FIRST_BROADCAST_QUEUE_MSG + 2; 159 160 final BroadcastHandler mHandler; 161 162 private final class BroadcastHandler extends Handler { 163 public BroadcastHandler(Looper looper) { 164 super(looper, null, true); 165 } 166 167 @Override 168 public void handleMessage(Message msg) { 169 switch (msg.what) { 170 case BROADCAST_INTENT_MSG: { 171 if (DEBUG_BROADCAST) Slog.v( 172 TAG_BROADCAST, "Received BROADCAST_INTENT_MSG"); 173 processNextBroadcast(true); 174 } break; 175 case BROADCAST_TIMEOUT_MSG: { 176 synchronized (mService) { 177 broadcastTimeoutLocked(true); 178 } 179 } break; 180 case SCHEDULE_TEMP_WHITELIST_MSG: { 181 DeviceIdleController.LocalService dic = mService.mLocalDeviceIdleController; 182 if (dic != null) { 183 dic.addPowerSaveTempWhitelistAppDirect(UserHandle.getAppId(msg.arg1), 184 msg.arg2, true, (String)msg.obj); 185 } 186 } break; 187 } 188 } 189 } 190 191 private final class AppNotResponding implements Runnable { 192 private final ProcessRecord mApp; 193 private final String mAnnotation; 194 195 public AppNotResponding(ProcessRecord app, String annotation) { 196 mApp = app; 197 mAnnotation = annotation; 198 } 199 200 @Override 201 public void run() { 202 mService.appNotResponding(mApp, null, null, false, mAnnotation); 203 } 204 } 205 206 BroadcastQueue(ActivityManagerService service, Handler handler, 207 String name, long timeoutPeriod, boolean allowDelayBehindServices) { 208 mService = service; 209 mHandler = new BroadcastHandler(handler.getLooper()); 210 mQueueName = name; 211 mTimeoutPeriod = timeoutPeriod; 212 mDelayBehindServices = allowDelayBehindServices; 213 } 214 215 public boolean isPendingBroadcastProcessLocked(int pid) { 216 return mPendingBroadcast != null && mPendingBroadcast.curApp.pid == pid; 217 } 218 219 public void enqueueParallelBroadcastLocked(BroadcastRecord r) { 220 mParallelBroadcasts.add(r); 221 r.enqueueClockTime = System.currentTimeMillis(); 222 } 223 224 public void enqueueOrderedBroadcastLocked(BroadcastRecord r) { 225 mOrderedBroadcasts.add(r); 226 r.enqueueClockTime = System.currentTimeMillis(); 227 } 228 229 public final boolean replaceParallelBroadcastLocked(BroadcastRecord r) { 230 for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) { 231 if (r.intent.filterEquals(mParallelBroadcasts.get(i).intent)) { 232 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 233 "***** DROPPING PARALLEL [" 234 + mQueueName + "]: " + r.intent); 235 mParallelBroadcasts.set(i, r); 236 return true; 237 } 238 } 239 return false; 240 } 241 242 public final boolean replaceOrderedBroadcastLocked(BroadcastRecord r) { 243 for (int i = mOrderedBroadcasts.size() - 1; i > 0; i--) { 244 if (r.intent.filterEquals(mOrderedBroadcasts.get(i).intent)) { 245 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 246 "***** DROPPING ORDERED [" 247 + mQueueName + "]: " + r.intent); 248 mOrderedBroadcasts.set(i, r); 249 return true; 250 } 251 } 252 return false; 253 } 254 255 private final void processCurBroadcastLocked(BroadcastRecord r, 256 ProcessRecord app) throws RemoteException { 257 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 258 "Process cur broadcast " + r + " for app " + app); 259 if (app.thread == null) { 260 throw new RemoteException(); 261 } 262 r.receiver = app.thread.asBinder(); 263 r.curApp = app; 264 app.curReceiver = r; 265 app.forceProcessStateUpTo(ActivityManager.PROCESS_STATE_RECEIVER); 266 mService.updateLruProcessLocked(app, false, null); 267 mService.updateOomAdjLocked(); 268 269 // Tell the application to launch this receiver. 270 r.intent.setComponent(r.curComponent); 271 272 boolean started = false; 273 try { 274 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, 275 "Delivering to component " + r.curComponent 276 + ": " + r); 277 mService.notifyPackageUse(r.intent.getComponent().getPackageName()); 278 app.thread.scheduleReceiver(new Intent(r.intent), r.curReceiver, 279 mService.compatibilityInfoForPackageLocked(r.curReceiver.applicationInfo), 280 r.resultCode, r.resultData, r.resultExtras, r.ordered, r.userId, 281 app.repProcState); 282 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 283 "Process cur broadcast " + r + " DELIVERED for app " + app); 284 started = true; 285 } finally { 286 if (!started) { 287 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 288 "Process cur broadcast " + r + ": NOT STARTED!"); 289 r.receiver = null; 290 r.curApp = null; 291 app.curReceiver = null; 292 } 293 } 294 } 295 296 public boolean sendPendingBroadcastsLocked(ProcessRecord app) { 297 boolean didSomething = false; 298 final BroadcastRecord br = mPendingBroadcast; 299 if (br != null && br.curApp.pid == app.pid) { 300 try { 301 mPendingBroadcast = null; 302 processCurBroadcastLocked(br, app); 303 didSomething = true; 304 } catch (Exception e) { 305 Slog.w(TAG, "Exception in new application when starting receiver " 306 + br.curComponent.flattenToShortString(), e); 307 logBroadcastReceiverDiscardLocked(br); 308 finishReceiverLocked(br, br.resultCode, br.resultData, 309 br.resultExtras, br.resultAbort, false); 310 scheduleBroadcastsLocked(); 311 // We need to reset the state if we failed to start the receiver. 312 br.state = BroadcastRecord.IDLE; 313 throw new RuntimeException(e.getMessage()); 314 } 315 } 316 return didSomething; 317 } 318 319 public void skipPendingBroadcastLocked(int pid) { 320 final BroadcastRecord br = mPendingBroadcast; 321 if (br != null && br.curApp.pid == pid) { 322 br.state = BroadcastRecord.IDLE; 323 br.nextReceiver = mPendingBroadcastRecvIndex; 324 mPendingBroadcast = null; 325 scheduleBroadcastsLocked(); 326 } 327 } 328 329 public void skipCurrentReceiverLocked(ProcessRecord app) { 330 BroadcastRecord r = null; 331 if (mOrderedBroadcasts.size() > 0) { 332 BroadcastRecord br = mOrderedBroadcasts.get(0); 333 if (br.curApp == app) { 334 r = br; 335 } 336 } 337 if (r == null && mPendingBroadcast != null && mPendingBroadcast.curApp == app) { 338 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 339 "[" + mQueueName + "] skip & discard pending app " + r); 340 r = mPendingBroadcast; 341 } 342 343 if (r != null) { 344 logBroadcastReceiverDiscardLocked(r); 345 finishReceiverLocked(r, r.resultCode, r.resultData, 346 r.resultExtras, r.resultAbort, false); 347 scheduleBroadcastsLocked(); 348 } 349 } 350 351 public void scheduleBroadcastsLocked() { 352 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Schedule broadcasts [" 353 + mQueueName + "]: current=" 354 + mBroadcastsScheduled); 355 356 if (mBroadcastsScheduled) { 357 return; 358 } 359 mHandler.sendMessage(mHandler.obtainMessage(BROADCAST_INTENT_MSG, this)); 360 mBroadcastsScheduled = true; 361 } 362 363 public BroadcastRecord getMatchingOrderedReceiver(IBinder receiver) { 364 if (mOrderedBroadcasts.size() > 0) { 365 final BroadcastRecord r = mOrderedBroadcasts.get(0); 366 if (r != null && r.receiver == receiver) { 367 return r; 368 } 369 } 370 return null; 371 } 372 373 public boolean finishReceiverLocked(BroadcastRecord r, int resultCode, 374 String resultData, Bundle resultExtras, boolean resultAbort, boolean waitForServices) { 375 final int state = r.state; 376 final ActivityInfo receiver = r.curReceiver; 377 r.state = BroadcastRecord.IDLE; 378 if (state == BroadcastRecord.IDLE) { 379 Slog.w(TAG, "finishReceiver [" + mQueueName + "] called but state is IDLE"); 380 } 381 r.receiver = null; 382 r.intent.setComponent(null); 383 if (r.curApp != null && r.curApp.curReceiver == r) { 384 r.curApp.curReceiver = null; 385 } 386 if (r.curFilter != null) { 387 r.curFilter.receiverList.curBroadcast = null; 388 } 389 r.curFilter = null; 390 r.curReceiver = null; 391 r.curApp = null; 392 mPendingBroadcast = null; 393 394 r.resultCode = resultCode; 395 r.resultData = resultData; 396 r.resultExtras = resultExtras; 397 if (resultAbort && (r.intent.getFlags()&Intent.FLAG_RECEIVER_NO_ABORT) == 0) { 398 r.resultAbort = resultAbort; 399 } else { 400 r.resultAbort = false; 401 } 402 403 if (waitForServices && r.curComponent != null && r.queue.mDelayBehindServices 404 && r.queue.mOrderedBroadcasts.size() > 0 405 && r.queue.mOrderedBroadcasts.get(0) == r) { 406 ActivityInfo nextReceiver; 407 if (r.nextReceiver < r.receivers.size()) { 408 Object obj = r.receivers.get(r.nextReceiver); 409 nextReceiver = (obj instanceof ActivityInfo) ? (ActivityInfo)obj : null; 410 } else { 411 nextReceiver = null; 412 } 413 // Don't do this if the next receive is in the same process as the current one. 414 if (receiver == null || nextReceiver == null 415 || receiver.applicationInfo.uid != nextReceiver.applicationInfo.uid 416 || !receiver.processName.equals(nextReceiver.processName)) { 417 // In this case, we are ready to process the next receiver for the current broadcast, 418 // but are on a queue that would like to wait for services to finish before moving 419 // on. If there are background services currently starting, then we will go into a 420 // special state where we hold off on continuing this broadcast until they are done. 421 if (mService.mServices.hasBackgroundServices(r.userId)) { 422 Slog.i(TAG, "Delay finish: " + r.curComponent.flattenToShortString()); 423 r.state = BroadcastRecord.WAITING_SERVICES; 424 return false; 425 } 426 } 427 } 428 429 r.curComponent = null; 430 431 // We will process the next receiver right now if this is finishing 432 // an app receiver (which is always asynchronous) or after we have 433 // come back from calling a receiver. 434 return state == BroadcastRecord.APP_RECEIVE 435 || state == BroadcastRecord.CALL_DONE_RECEIVE; 436 } 437 438 public void backgroundServicesFinishedLocked(int userId) { 439 if (mOrderedBroadcasts.size() > 0) { 440 BroadcastRecord br = mOrderedBroadcasts.get(0); 441 if (br.userId == userId && br.state == BroadcastRecord.WAITING_SERVICES) { 442 Slog.i(TAG, "Resuming delayed broadcast"); 443 br.curComponent = null; 444 br.state = BroadcastRecord.IDLE; 445 processNextBroadcast(false); 446 } 447 } 448 } 449 450 private static void performReceiveLocked(ProcessRecord app, IIntentReceiver receiver, 451 Intent intent, int resultCode, String data, Bundle extras, 452 boolean ordered, boolean sticky, int sendingUser) throws RemoteException { 453 // Send the intent to the receiver asynchronously using one-way binder calls. 454 if (app != null) { 455 if (app.thread != null) { 456 // If we have an app thread, do the call through that so it is 457 // correctly ordered with other one-way calls. 458 app.thread.scheduleRegisteredReceiver(receiver, intent, resultCode, 459 data, extras, ordered, sticky, sendingUser, app.repProcState); 460 } else { 461 // Application has died. Receiver doesn't exist. 462 throw new RemoteException("app.thread must not be null"); 463 } 464 } else { 465 receiver.performReceive(intent, resultCode, data, extras, ordered, 466 sticky, sendingUser); 467 } 468 } 469 470 private void deliverToRegisteredReceiverLocked(BroadcastRecord r, 471 BroadcastFilter filter, boolean ordered) { 472 boolean skip = false; 473 if (filter.requiredPermission != null) { 474 int perm = mService.checkComponentPermission(filter.requiredPermission, 475 r.callingPid, r.callingUid, -1, true); 476 if (perm != PackageManager.PERMISSION_GRANTED) { 477 Slog.w(TAG, "Permission Denial: broadcasting " 478 + r.intent.toString() 479 + " from " + r.callerPackage + " (pid=" 480 + r.callingPid + ", uid=" + r.callingUid + ")" 481 + " requires " + filter.requiredPermission 482 + " due to registered receiver " + filter); 483 skip = true; 484 } else { 485 final int opCode = AppOpsManager.permissionToOpCode(filter.requiredPermission); 486 if (opCode != AppOpsManager.OP_NONE 487 && mService.mAppOpsService.noteOperation(opCode, r.callingUid, 488 r.callerPackage) != AppOpsManager.MODE_ALLOWED) { 489 Slog.w(TAG, "Appop Denial: broadcasting " 490 + r.intent.toString() 491 + " from " + r.callerPackage + " (pid=" 492 + r.callingPid + ", uid=" + r.callingUid + ")" 493 + " requires appop " + AppOpsManager.permissionToOp( 494 filter.requiredPermission) 495 + " due to registered receiver " + filter); 496 skip = true; 497 } 498 } 499 } 500 if (!skip && r.requiredPermissions != null && r.requiredPermissions.length > 0) { 501 for (int i = 0; i < r.requiredPermissions.length; i++) { 502 String requiredPermission = r.requiredPermissions[i]; 503 int perm = mService.checkComponentPermission(requiredPermission, 504 filter.receiverList.pid, filter.receiverList.uid, -1, true); 505 if (perm != PackageManager.PERMISSION_GRANTED) { 506 Slog.w(TAG, "Permission Denial: receiving " 507 + r.intent.toString() 508 + " to " + filter.receiverList.app 509 + " (pid=" + filter.receiverList.pid 510 + ", uid=" + filter.receiverList.uid + ")" 511 + " requires " + requiredPermission 512 + " due to sender " + r.callerPackage 513 + " (uid " + r.callingUid + ")"); 514 skip = true; 515 break; 516 } 517 int appOp = AppOpsManager.permissionToOpCode(requiredPermission); 518 if (appOp != AppOpsManager.OP_NONE && appOp != r.appOp 519 && mService.mAppOpsService.noteOperation(appOp, 520 filter.receiverList.uid, filter.packageName) 521 != AppOpsManager.MODE_ALLOWED) { 522 Slog.w(TAG, "Appop Denial: receiving " 523 + r.intent.toString() 524 + " to " + filter.receiverList.app 525 + " (pid=" + filter.receiverList.pid 526 + ", uid=" + filter.receiverList.uid + ")" 527 + " requires appop " + AppOpsManager.permissionToOp( 528 requiredPermission) 529 + " due to sender " + r.callerPackage 530 + " (uid " + r.callingUid + ")"); 531 skip = true; 532 break; 533 } 534 } 535 } 536 if (!skip && (r.requiredPermissions == null || r.requiredPermissions.length == 0)) { 537 int perm = mService.checkComponentPermission(null, 538 filter.receiverList.pid, filter.receiverList.uid, -1, true); 539 if (perm != PackageManager.PERMISSION_GRANTED) { 540 Slog.w(TAG, "Permission Denial: security check failed when receiving " 541 + r.intent.toString() 542 + " to " + filter.receiverList.app 543 + " (pid=" + filter.receiverList.pid 544 + ", uid=" + filter.receiverList.uid + ")" 545 + " due to sender " + r.callerPackage 546 + " (uid " + r.callingUid + ")"); 547 skip = true; 548 } 549 } 550 if (!skip && r.appOp != AppOpsManager.OP_NONE 551 && mService.mAppOpsService.noteOperation(r.appOp, 552 filter.receiverList.uid, filter.packageName) 553 != AppOpsManager.MODE_ALLOWED) { 554 Slog.w(TAG, "Appop Denial: receiving " 555 + r.intent.toString() 556 + " to " + filter.receiverList.app 557 + " (pid=" + filter.receiverList.pid 558 + ", uid=" + filter.receiverList.uid + ")" 559 + " requires appop " + AppOpsManager.opToName(r.appOp) 560 + " due to sender " + r.callerPackage 561 + " (uid " + r.callingUid + ")"); 562 skip = true; 563 } 564 if (!skip) { 565 if (!mService.checkAllowBackgroundLocked(filter.receiverList.uid, filter.packageName, 566 -1)) { 567 Slog.w(TAG, "Background execution not allowed: receiving " 568 + r.intent 569 + " to " + filter.receiverList.app 570 + " (pid=" + filter.receiverList.pid 571 + ", uid=" + filter.receiverList.uid + ")"); 572 skip = true; 573 } 574 } 575 576 if (!mService.mIntentFirewall.checkBroadcast(r.intent, r.callingUid, 577 r.callingPid, r.resolvedType, filter.receiverList.uid)) { 578 return; 579 } 580 581 if (filter.receiverList.app == null || filter.receiverList.app.crashing) { 582 Slog.w(TAG, "Skipping deliver [" + mQueueName + "] " + r 583 + " to " + filter.receiverList + ": process crashing"); 584 skip = true; 585 } 586 587 if (!skip) { 588 // If permissions need a review before any of the app components can run, we drop 589 // the broadcast and if the calling app is in the foreground and the broadcast is 590 // explicit we launch the review UI passing it a pending intent to send the skipped 591 // broadcast. 592 if (Build.PERMISSIONS_REVIEW_REQUIRED) { 593 if (!requestStartTargetPermissionsReviewIfNeededLocked(r, filter.packageName, 594 filter.owningUserId)) { 595 return; 596 } 597 } 598 599 // If this is not being sent as an ordered broadcast, then we 600 // don't want to touch the fields that keep track of the current 601 // state of ordered broadcasts. 602 if (ordered) { 603 r.receiver = filter.receiverList.receiver.asBinder(); 604 r.curFilter = filter; 605 filter.receiverList.curBroadcast = r; 606 r.state = BroadcastRecord.CALL_IN_RECEIVE; 607 if (filter.receiverList.app != null) { 608 // Bump hosting application to no longer be in background 609 // scheduling class. Note that we can't do that if there 610 // isn't an app... but we can only be in that case for 611 // things that directly call the IActivityManager API, which 612 // are already core system stuff so don't matter for this. 613 r.curApp = filter.receiverList.app; 614 filter.receiverList.app.curReceiver = r; 615 mService.updateOomAdjLocked(r.curApp); 616 } 617 } 618 try { 619 if (DEBUG_BROADCAST_LIGHT) Slog.i(TAG_BROADCAST, 620 "Delivering to " + filter + " : " + r); 621 performReceiveLocked(filter.receiverList.app, filter.receiverList.receiver, 622 new Intent(r.intent), r.resultCode, r.resultData, 623 r.resultExtras, r.ordered, r.initialSticky, r.userId); 624 if (ordered) { 625 r.state = BroadcastRecord.CALL_DONE_RECEIVE; 626 } 627 } catch (RemoteException e) { 628 Slog.w(TAG, "Failure sending broadcast " + r.intent, e); 629 if (ordered) { 630 r.receiver = null; 631 r.curFilter = null; 632 filter.receiverList.curBroadcast = null; 633 if (filter.receiverList.app != null) { 634 filter.receiverList.app.curReceiver = null; 635 } 636 } 637 } 638 } 639 } 640 641 private boolean requestStartTargetPermissionsReviewIfNeededLocked( 642 BroadcastRecord receiverRecord, String receivingPackageName, 643 final int receivingUserId) { 644 if (!mService.getPackageManagerInternalLocked().isPermissionsReviewRequired( 645 receivingPackageName, receivingUserId)) { 646 return true; 647 } 648 649 final boolean callerForeground = receiverRecord.callerApp != null 650 ? receiverRecord.callerApp.setSchedGroup != Process.THREAD_GROUP_BG_NONINTERACTIVE 651 : true; 652 653 // Show a permission review UI only for explicit broadcast from a foreground app 654 if (callerForeground && receiverRecord.intent.getComponent() != null) { 655 IIntentSender target = mService.getIntentSenderLocked( 656 ActivityManager.INTENT_SENDER_BROADCAST, receiverRecord.callerPackage, 657 receiverRecord.callingUid, receiverRecord.userId, null, null, 0, 658 new Intent[]{receiverRecord.intent}, 659 new String[]{receiverRecord.intent.resolveType(mService.mContext 660 .getContentResolver())}, 661 PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT 662 | PendingIntent.FLAG_IMMUTABLE, null); 663 664 final Intent intent = new Intent(Intent.ACTION_REVIEW_PERMISSIONS); 665 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK 666 | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 667 intent.putExtra(Intent.EXTRA_PACKAGE_NAME, receivingPackageName); 668 intent.putExtra(Intent.EXTRA_INTENT, new IntentSender(target)); 669 670 if (DEBUG_PERMISSIONS_REVIEW) { 671 Slog.i(TAG, "u" + receivingUserId + " Launching permission review for package " 672 + receivingPackageName); 673 } 674 675 mHandler.post(new Runnable() { 676 @Override 677 public void run() { 678 mService.mContext.startActivityAsUser(intent, new UserHandle(receivingUserId)); 679 } 680 }); 681 } else { 682 Slog.w(TAG, "u" + receivingUserId + " Receiving a broadcast in package" 683 + receivingPackageName + " requires a permissions review"); 684 } 685 686 return false; 687 } 688 689 final void scheduleTempWhitelistLocked(int uid, long duration, BroadcastRecord r) { 690 if (duration > Integer.MAX_VALUE) { 691 duration = Integer.MAX_VALUE; 692 } 693 // XXX ideally we should pause the broadcast until everything behind this is done, 694 // or else we will likely start dispatching the broadcast before we have opened 695 // access to the app (there is a lot of asynchronicity behind this). It is probably 696 // not that big a deal, however, because the main purpose here is to allow apps 697 // to hold wake locks, and they will be able to acquire their wake lock immediately 698 // it just won't be enabled until we get through this work. 699 StringBuilder b = new StringBuilder(); 700 b.append("broadcast:"); 701 UserHandle.formatUid(b, r.callingUid); 702 b.append(":"); 703 if (r.intent.getAction() != null) { 704 b.append(r.intent.getAction()); 705 } else if (r.intent.getComponent() != null) { 706 b.append(r.intent.getComponent().flattenToShortString()); 707 } else if (r.intent.getData() != null) { 708 b.append(r.intent.getData()); 709 } 710 mHandler.obtainMessage(SCHEDULE_TEMP_WHITELIST_MSG, uid, (int)duration, b.toString()) 711 .sendToTarget(); 712 } 713 714 final void processNextBroadcast(boolean fromMsg) { 715 synchronized(mService) { 716 BroadcastRecord r; 717 718 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "processNextBroadcast [" 719 + mQueueName + "]: " 720 + mParallelBroadcasts.size() + " broadcasts, " 721 + mOrderedBroadcasts.size() + " ordered broadcasts"); 722 723 mService.updateCpuStats(); 724 725 if (fromMsg) { 726 mBroadcastsScheduled = false; 727 } 728 729 // First, deliver any non-serialized broadcasts right away. 730 while (mParallelBroadcasts.size() > 0) { 731 r = mParallelBroadcasts.remove(0); 732 r.dispatchTime = SystemClock.uptimeMillis(); 733 r.dispatchClockTime = System.currentTimeMillis(); 734 final int N = r.receivers.size(); 735 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Processing parallel broadcast [" 736 + mQueueName + "] " + r); 737 for (int i=0; i<N; i++) { 738 Object target = r.receivers.get(i); 739 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 740 "Delivering non-ordered on [" + mQueueName + "] to registered " 741 + target + ": " + r); 742 deliverToRegisteredReceiverLocked(r, (BroadcastFilter)target, false); 743 } 744 addBroadcastToHistoryLocked(r); 745 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Done with parallel broadcast [" 746 + mQueueName + "] " + r); 747 } 748 749 // Now take care of the next serialized one... 750 751 // If we are waiting for a process to come up to handle the next 752 // broadcast, then do nothing at this point. Just in case, we 753 // check that the process we're waiting for still exists. 754 if (mPendingBroadcast != null) { 755 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, 756 "processNextBroadcast [" + mQueueName + "]: waiting for " 757 + mPendingBroadcast.curApp); 758 759 boolean isDead; 760 synchronized (mService.mPidsSelfLocked) { 761 ProcessRecord proc = mService.mPidsSelfLocked.get(mPendingBroadcast.curApp.pid); 762 isDead = proc == null || proc.crashing; 763 } 764 if (!isDead) { 765 // It's still alive, so keep waiting 766 return; 767 } else { 768 Slog.w(TAG, "pending app [" 769 + mQueueName + "]" + mPendingBroadcast.curApp 770 + " died before responding to broadcast"); 771 mPendingBroadcast.state = BroadcastRecord.IDLE; 772 mPendingBroadcast.nextReceiver = mPendingBroadcastRecvIndex; 773 mPendingBroadcast = null; 774 } 775 } 776 777 boolean looped = false; 778 779 do { 780 if (mOrderedBroadcasts.size() == 0) { 781 // No more broadcasts pending, so all done! 782 mService.scheduleAppGcsLocked(); 783 if (looped) { 784 // If we had finished the last ordered broadcast, then 785 // make sure all processes have correct oom and sched 786 // adjustments. 787 mService.updateOomAdjLocked(); 788 } 789 return; 790 } 791 r = mOrderedBroadcasts.get(0); 792 boolean forceReceive = false; 793 794 // Ensure that even if something goes awry with the timeout 795 // detection, we catch "hung" broadcasts here, discard them, 796 // and continue to make progress. 797 // 798 // This is only done if the system is ready so that PRE_BOOT_COMPLETED 799 // receivers don't get executed with timeouts. They're intended for 800 // one time heavy lifting after system upgrades and can take 801 // significant amounts of time. 802 int numReceivers = (r.receivers != null) ? r.receivers.size() : 0; 803 if (mService.mProcessesReady && r.dispatchTime > 0) { 804 long now = SystemClock.uptimeMillis(); 805 if ((numReceivers > 0) && 806 (now > r.dispatchTime + (2*mTimeoutPeriod*numReceivers))) { 807 Slog.w(TAG, "Hung broadcast [" 808 + mQueueName + "] discarded after timeout failure:" 809 + " now=" + now 810 + " dispatchTime=" + r.dispatchTime 811 + " startTime=" + r.receiverTime 812 + " intent=" + r.intent 813 + " numReceivers=" + numReceivers 814 + " nextReceiver=" + r.nextReceiver 815 + " state=" + r.state); 816 broadcastTimeoutLocked(false); // forcibly finish this broadcast 817 forceReceive = true; 818 r.state = BroadcastRecord.IDLE; 819 } 820 } 821 822 if (r.state != BroadcastRecord.IDLE) { 823 if (DEBUG_BROADCAST) Slog.d(TAG_BROADCAST, 824 "processNextBroadcast(" 825 + mQueueName + ") called when not idle (state=" 826 + r.state + ")"); 827 return; 828 } 829 830 if (r.receivers == null || r.nextReceiver >= numReceivers 831 || r.resultAbort || forceReceive) { 832 // No more receivers for this broadcast! Send the final 833 // result if requested... 834 if (r.resultTo != null) { 835 try { 836 if (DEBUG_BROADCAST) Slog.i(TAG_BROADCAST, 837 "Finishing broadcast [" + mQueueName + "] " 838 + r.intent.getAction() + " app=" + r.callerApp); 839 performReceiveLocked(r.callerApp, r.resultTo, 840 new Intent(r.intent), r.resultCode, 841 r.resultData, r.resultExtras, false, false, r.userId); 842 // Set this to null so that the reference 843 // (local and remote) isn't kept in the mBroadcastHistory. 844 r.resultTo = null; 845 } catch (RemoteException e) { 846 r.resultTo = null; 847 Slog.w(TAG, "Failure [" 848 + mQueueName + "] sending broadcast result of " 849 + r.intent, e); 850 } 851 } 852 853 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Cancelling BROADCAST_TIMEOUT_MSG"); 854 cancelBroadcastTimeoutLocked(); 855 856 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, 857 "Finished with ordered broadcast " + r); 858 859 // ... and on to the next... 860 addBroadcastToHistoryLocked(r); 861 mOrderedBroadcasts.remove(0); 862 r = null; 863 looped = true; 864 continue; 865 } 866 } while (r == null); 867 868 // Get the next receiver... 869 int recIdx = r.nextReceiver++; 870 871 // Keep track of when this receiver started, and make sure there 872 // is a timeout message pending to kill it if need be. 873 r.receiverTime = SystemClock.uptimeMillis(); 874 if (recIdx == 0) { 875 r.dispatchTime = r.receiverTime; 876 r.dispatchClockTime = System.currentTimeMillis(); 877 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Processing ordered broadcast [" 878 + mQueueName + "] " + r); 879 } 880 if (! mPendingBroadcastTimeoutMessage) { 881 long timeoutTime = r.receiverTime + mTimeoutPeriod; 882 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 883 "Submitting BROADCAST_TIMEOUT_MSG [" 884 + mQueueName + "] for " + r + " at " + timeoutTime); 885 setBroadcastTimeoutLocked(timeoutTime); 886 } 887 888 final BroadcastOptions brOptions = r.options; 889 final Object nextReceiver = r.receivers.get(recIdx); 890 891 if (nextReceiver instanceof BroadcastFilter) { 892 // Simple case: this is a registered receiver who gets 893 // a direct call. 894 BroadcastFilter filter = (BroadcastFilter)nextReceiver; 895 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 896 "Delivering ordered [" 897 + mQueueName + "] to registered " 898 + filter + ": " + r); 899 deliverToRegisteredReceiverLocked(r, filter, r.ordered); 900 if (r.receiver == null || !r.ordered) { 901 // The receiver has already finished, so schedule to 902 // process the next one. 903 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Quick finishing [" 904 + mQueueName + "]: ordered=" 905 + r.ordered + " receiver=" + r.receiver); 906 r.state = BroadcastRecord.IDLE; 907 scheduleBroadcastsLocked(); 908 } else { 909 if (brOptions != null && brOptions.getTemporaryAppWhitelistDuration() > 0) { 910 scheduleTempWhitelistLocked(filter.owningUid, 911 brOptions.getTemporaryAppWhitelistDuration(), r); 912 } 913 } 914 return; 915 } 916 917 // Hard case: need to instantiate the receiver, possibly 918 // starting its application process to host it. 919 920 ResolveInfo info = 921 (ResolveInfo)nextReceiver; 922 ComponentName component = new ComponentName( 923 info.activityInfo.applicationInfo.packageName, 924 info.activityInfo.name); 925 926 boolean skip = false; 927 int perm = mService.checkComponentPermission(info.activityInfo.permission, 928 r.callingPid, r.callingUid, info.activityInfo.applicationInfo.uid, 929 info.activityInfo.exported); 930 if (perm != PackageManager.PERMISSION_GRANTED) { 931 if (!info.activityInfo.exported) { 932 Slog.w(TAG, "Permission Denial: broadcasting " 933 + r.intent.toString() 934 + " from " + r.callerPackage + " (pid=" + r.callingPid 935 + ", uid=" + r.callingUid + ")" 936 + " is not exported from uid " + info.activityInfo.applicationInfo.uid 937 + " due to receiver " + component.flattenToShortString()); 938 } else { 939 Slog.w(TAG, "Permission Denial: broadcasting " 940 + r.intent.toString() 941 + " from " + r.callerPackage + " (pid=" + r.callingPid 942 + ", uid=" + r.callingUid + ")" 943 + " requires " + info.activityInfo.permission 944 + " due to receiver " + component.flattenToShortString()); 945 } 946 skip = true; 947 } else if (info.activityInfo.permission != null) { 948 final int opCode = AppOpsManager.permissionToOpCode(info.activityInfo.permission); 949 if (opCode != AppOpsManager.OP_NONE 950 && mService.mAppOpsService.noteOperation(opCode, r.callingUid, 951 r.callerPackage) != AppOpsManager.MODE_ALLOWED) { 952 Slog.w(TAG, "Appop Denial: broadcasting " 953 + r.intent.toString() 954 + " from " + r.callerPackage + " (pid=" 955 + r.callingPid + ", uid=" + r.callingUid + ")" 956 + " requires appop " + AppOpsManager.permissionToOp( 957 info.activityInfo.permission) 958 + " due to registered receiver " 959 + component.flattenToShortString()); 960 skip = true; 961 } 962 } 963 if (!skip && info.activityInfo.applicationInfo.uid != Process.SYSTEM_UID && 964 r.requiredPermissions != null && r.requiredPermissions.length > 0) { 965 for (int i = 0; i < r.requiredPermissions.length; i++) { 966 String requiredPermission = r.requiredPermissions[i]; 967 try { 968 perm = AppGlobals.getPackageManager(). 969 checkPermission(requiredPermission, 970 info.activityInfo.applicationInfo.packageName, 971 UserHandle 972 .getUserId(info.activityInfo.applicationInfo.uid)); 973 } catch (RemoteException e) { 974 perm = PackageManager.PERMISSION_DENIED; 975 } 976 if (perm != PackageManager.PERMISSION_GRANTED) { 977 Slog.w(TAG, "Permission Denial: receiving " 978 + r.intent + " to " 979 + component.flattenToShortString() 980 + " requires " + requiredPermission 981 + " due to sender " + r.callerPackage 982 + " (uid " + r.callingUid + ")"); 983 skip = true; 984 break; 985 } 986 int appOp = AppOpsManager.permissionToOpCode(requiredPermission); 987 if (appOp != AppOpsManager.OP_NONE && appOp != r.appOp 988 && mService.mAppOpsService.noteOperation(appOp, 989 info.activityInfo.applicationInfo.uid, info.activityInfo.packageName) 990 != AppOpsManager.MODE_ALLOWED) { 991 Slog.w(TAG, "Appop Denial: receiving " 992 + r.intent + " to " 993 + component.flattenToShortString() 994 + " requires appop " + AppOpsManager.permissionToOp( 995 requiredPermission) 996 + " due to sender " + r.callerPackage 997 + " (uid " + r.callingUid + ")"); 998 skip = true; 999 break; 1000 } 1001 } 1002 } 1003 if (!skip && r.appOp != AppOpsManager.OP_NONE 1004 && mService.mAppOpsService.noteOperation(r.appOp, 1005 info.activityInfo.applicationInfo.uid, info.activityInfo.packageName) 1006 != AppOpsManager.MODE_ALLOWED) { 1007 Slog.w(TAG, "Appop Denial: receiving " 1008 + r.intent + " to " 1009 + component.flattenToShortString() 1010 + " requires appop " + AppOpsManager.opToName(r.appOp) 1011 + " due to sender " + r.callerPackage 1012 + " (uid " + r.callingUid + ")"); 1013 skip = true; 1014 } 1015 if (!skip) { 1016 if (!mService.checkAllowBackgroundLocked(info.activityInfo.applicationInfo.uid, 1017 info.activityInfo.packageName, -1)) { 1018 Slog.w(TAG, "Background execution not allowed: receiving " 1019 + r.intent + " to " 1020 + component.flattenToShortString()); 1021 skip = true; 1022 } 1023 } 1024 if (!skip) { 1025 skip = !mService.mIntentFirewall.checkBroadcast(r.intent, r.callingUid, 1026 r.callingPid, r.resolvedType, info.activityInfo.applicationInfo.uid); 1027 } 1028 boolean isSingleton = false; 1029 try { 1030 isSingleton = mService.isSingleton(info.activityInfo.processName, 1031 info.activityInfo.applicationInfo, 1032 info.activityInfo.name, info.activityInfo.flags); 1033 } catch (SecurityException e) { 1034 Slog.w(TAG, e.getMessage()); 1035 skip = true; 1036 } 1037 if ((info.activityInfo.flags&ActivityInfo.FLAG_SINGLE_USER) != 0) { 1038 if (ActivityManager.checkUidPermission( 1039 android.Manifest.permission.INTERACT_ACROSS_USERS, 1040 info.activityInfo.applicationInfo.uid) 1041 != PackageManager.PERMISSION_GRANTED) { 1042 Slog.w(TAG, "Permission Denial: Receiver " + component.flattenToShortString() 1043 + " requests FLAG_SINGLE_USER, but app does not hold " 1044 + android.Manifest.permission.INTERACT_ACROSS_USERS); 1045 skip = true; 1046 } 1047 } 1048 if (r.curApp != null && r.curApp.crashing) { 1049 // If the target process is crashing, just skip it. 1050 Slog.w(TAG, "Skipping deliver ordered [" + mQueueName + "] " + r 1051 + " to " + r.curApp + ": process crashing"); 1052 skip = true; 1053 } 1054 if (!skip) { 1055 boolean isAvailable = false; 1056 try { 1057 isAvailable = AppGlobals.getPackageManager().isPackageAvailable( 1058 info.activityInfo.packageName, 1059 UserHandle.getUserId(info.activityInfo.applicationInfo.uid)); 1060 } catch (Exception e) { 1061 // all such failures mean we skip this receiver 1062 Slog.w(TAG, "Exception getting recipient info for " 1063 + info.activityInfo.packageName, e); 1064 } 1065 if (!isAvailable) { 1066 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1067 "Skipping delivery to " + info.activityInfo.packageName + " / " 1068 + info.activityInfo.applicationInfo.uid 1069 + " : package no longer available"); 1070 skip = true; 1071 } 1072 } 1073 1074 // If permissions need a review before any of the app components can run, we drop 1075 // the broadcast and if the calling app is in the foreground and the broadcast is 1076 // explicit we launch the review UI passing it a pending intent to send the skipped 1077 // broadcast. 1078 if (Build.PERMISSIONS_REVIEW_REQUIRED && !skip) { 1079 if (!requestStartTargetPermissionsReviewIfNeededLocked(r, 1080 info.activityInfo.packageName, UserHandle.getUserId( 1081 info.activityInfo.applicationInfo.uid))) { 1082 skip = true; 1083 } 1084 } 1085 1086 if (skip) { 1087 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1088 "Skipping delivery of ordered [" + mQueueName + "] " 1089 + r + " for whatever reason"); 1090 r.receiver = null; 1091 r.curFilter = null; 1092 r.state = BroadcastRecord.IDLE; 1093 scheduleBroadcastsLocked(); 1094 return; 1095 } 1096 1097 r.state = BroadcastRecord.APP_RECEIVE; 1098 String targetProcess = info.activityInfo.processName; 1099 r.curComponent = component; 1100 final int receiverUid = info.activityInfo.applicationInfo.uid; 1101 // If it's a singleton, it needs to be the same app or a special app 1102 if (r.callingUid != Process.SYSTEM_UID && isSingleton 1103 && mService.isValidSingletonCall(r.callingUid, receiverUid)) { 1104 info.activityInfo = mService.getActivityInfoForUser(info.activityInfo, 0); 1105 } 1106 r.curReceiver = info.activityInfo; 1107 if (DEBUG_MU && r.callingUid > UserHandle.PER_USER_RANGE) { 1108 Slog.v(TAG_MU, "Updated broadcast record activity info for secondary user, " 1109 + info.activityInfo + ", callingUid = " + r.callingUid + ", uid = " 1110 + info.activityInfo.applicationInfo.uid); 1111 } 1112 1113 if (brOptions != null && brOptions.getTemporaryAppWhitelistDuration() > 0) { 1114 scheduleTempWhitelistLocked(receiverUid, 1115 brOptions.getTemporaryAppWhitelistDuration(), r); 1116 } 1117 1118 // Broadcast is being executed, its package can't be stopped. 1119 try { 1120 AppGlobals.getPackageManager().setPackageStoppedState( 1121 r.curComponent.getPackageName(), false, UserHandle.getUserId(r.callingUid)); 1122 } catch (RemoteException e) { 1123 } catch (IllegalArgumentException e) { 1124 Slog.w(TAG, "Failed trying to unstop package " 1125 + r.curComponent.getPackageName() + ": " + e); 1126 } 1127 1128 // Is this receiver's application already running? 1129 ProcessRecord app = mService.getProcessRecordLocked(targetProcess, 1130 info.activityInfo.applicationInfo.uid, false); 1131 if (app != null && app.thread != null) { 1132 try { 1133 app.addPackage(info.activityInfo.packageName, 1134 info.activityInfo.applicationInfo.versionCode, mService.mProcessStats); 1135 processCurBroadcastLocked(r, app); 1136 return; 1137 } catch (RemoteException e) { 1138 Slog.w(TAG, "Exception when sending broadcast to " 1139 + r.curComponent, e); 1140 } catch (RuntimeException e) { 1141 Slog.wtf(TAG, "Failed sending broadcast to " 1142 + r.curComponent + " with " + r.intent, e); 1143 // If some unexpected exception happened, just skip 1144 // this broadcast. At this point we are not in the call 1145 // from a client, so throwing an exception out from here 1146 // will crash the entire system instead of just whoever 1147 // sent the broadcast. 1148 logBroadcastReceiverDiscardLocked(r); 1149 finishReceiverLocked(r, r.resultCode, r.resultData, 1150 r.resultExtras, r.resultAbort, false); 1151 scheduleBroadcastsLocked(); 1152 // We need to reset the state if we failed to start the receiver. 1153 r.state = BroadcastRecord.IDLE; 1154 return; 1155 } 1156 1157 // If a dead object exception was thrown -- fall through to 1158 // restart the application. 1159 } 1160 1161 // Not running -- get it started, to be executed when the app comes up. 1162 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1163 "Need to start app [" 1164 + mQueueName + "] " + targetProcess + " for broadcast " + r); 1165 if ((r.curApp=mService.startProcessLocked(targetProcess, 1166 info.activityInfo.applicationInfo, true, 1167 r.intent.getFlags() | Intent.FLAG_FROM_BACKGROUND, 1168 "broadcast", r.curComponent, 1169 (r.intent.getFlags()&Intent.FLAG_RECEIVER_BOOT_UPGRADE) != 0, false, false)) 1170 == null) { 1171 // Ah, this recipient is unavailable. Finish it if necessary, 1172 // and mark the broadcast record as ready for the next. 1173 Slog.w(TAG, "Unable to launch app " 1174 + info.activityInfo.applicationInfo.packageName + "/" 1175 + info.activityInfo.applicationInfo.uid + " for broadcast " 1176 + r.intent + ": process is bad"); 1177 logBroadcastReceiverDiscardLocked(r); 1178 finishReceiverLocked(r, r.resultCode, r.resultData, 1179 r.resultExtras, r.resultAbort, false); 1180 scheduleBroadcastsLocked(); 1181 r.state = BroadcastRecord.IDLE; 1182 return; 1183 } 1184 1185 mPendingBroadcast = r; 1186 mPendingBroadcastRecvIndex = recIdx; 1187 } 1188 } 1189 1190 final void setBroadcastTimeoutLocked(long timeoutTime) { 1191 if (! mPendingBroadcastTimeoutMessage) { 1192 Message msg = mHandler.obtainMessage(BROADCAST_TIMEOUT_MSG, this); 1193 mHandler.sendMessageAtTime(msg, timeoutTime); 1194 mPendingBroadcastTimeoutMessage = true; 1195 } 1196 } 1197 1198 final void cancelBroadcastTimeoutLocked() { 1199 if (mPendingBroadcastTimeoutMessage) { 1200 mHandler.removeMessages(BROADCAST_TIMEOUT_MSG, this); 1201 mPendingBroadcastTimeoutMessage = false; 1202 } 1203 } 1204 1205 final void broadcastTimeoutLocked(boolean fromMsg) { 1206 if (fromMsg) { 1207 mPendingBroadcastTimeoutMessage = false; 1208 } 1209 1210 if (mOrderedBroadcasts.size() == 0) { 1211 return; 1212 } 1213 1214 long now = SystemClock.uptimeMillis(); 1215 BroadcastRecord r = mOrderedBroadcasts.get(0); 1216 if (fromMsg) { 1217 if (mService.mDidDexOpt) { 1218 // Delay timeouts until dexopt finishes. 1219 mService.mDidDexOpt = false; 1220 long timeoutTime = SystemClock.uptimeMillis() + mTimeoutPeriod; 1221 setBroadcastTimeoutLocked(timeoutTime); 1222 return; 1223 } 1224 if (!mService.mProcessesReady) { 1225 // Only process broadcast timeouts if the system is ready. That way 1226 // PRE_BOOT_COMPLETED broadcasts can't timeout as they are intended 1227 // to do heavy lifting for system up. 1228 return; 1229 } 1230 1231 long timeoutTime = r.receiverTime + mTimeoutPeriod; 1232 if (timeoutTime > now) { 1233 // We can observe premature timeouts because we do not cancel and reset the 1234 // broadcast timeout message after each receiver finishes. Instead, we set up 1235 // an initial timeout then kick it down the road a little further as needed 1236 // when it expires. 1237 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1238 "Premature timeout [" 1239 + mQueueName + "] @ " + now + ": resetting BROADCAST_TIMEOUT_MSG for " 1240 + timeoutTime); 1241 setBroadcastTimeoutLocked(timeoutTime); 1242 return; 1243 } 1244 } 1245 1246 BroadcastRecord br = mOrderedBroadcasts.get(0); 1247 if (br.state == BroadcastRecord.WAITING_SERVICES) { 1248 // In this case the broadcast had already finished, but we had decided to wait 1249 // for started services to finish as well before going on. So if we have actually 1250 // waited long enough time timeout the broadcast, let's give up on the whole thing 1251 // and just move on to the next. 1252 Slog.i(TAG, "Waited long enough for: " + (br.curComponent != null 1253 ? br.curComponent.flattenToShortString() : "(null)")); 1254 br.curComponent = null; 1255 br.state = BroadcastRecord.IDLE; 1256 processNextBroadcast(false); 1257 return; 1258 } 1259 1260 Slog.w(TAG, "Timeout of broadcast " + r + " - receiver=" + r. receiver 1261 + ", started " + (now - r.receiverTime) + "ms ago"); 1262 r.receiverTime = now; 1263 r.anrCount++; 1264 1265 // Current receiver has passed its expiration date. 1266 if (r.nextReceiver <= 0) { 1267 Slog.w(TAG, "Timeout on receiver with nextReceiver <= 0"); 1268 return; 1269 } 1270 1271 ProcessRecord app = null; 1272 String anrMessage = null; 1273 1274 Object curReceiver = r.receivers.get(r.nextReceiver-1); 1275 Slog.w(TAG, "Receiver during timeout: " + curReceiver); 1276 logBroadcastReceiverDiscardLocked(r); 1277 if (curReceiver instanceof BroadcastFilter) { 1278 BroadcastFilter bf = (BroadcastFilter)curReceiver; 1279 if (bf.receiverList.pid != 0 1280 && bf.receiverList.pid != ActivityManagerService.MY_PID) { 1281 synchronized (mService.mPidsSelfLocked) { 1282 app = mService.mPidsSelfLocked.get( 1283 bf.receiverList.pid); 1284 } 1285 } 1286 } else { 1287 app = r.curApp; 1288 } 1289 1290 if (app != null) { 1291 anrMessage = "Broadcast of " + r.intent.toString(); 1292 } 1293 1294 if (mPendingBroadcast == r) { 1295 mPendingBroadcast = null; 1296 } 1297 1298 // Move on to the next receiver. 1299 finishReceiverLocked(r, r.resultCode, r.resultData, 1300 r.resultExtras, r.resultAbort, false); 1301 scheduleBroadcastsLocked(); 1302 1303 if (anrMessage != null) { 1304 // Post the ANR to the handler since we do not want to process ANRs while 1305 // potentially holding our lock. 1306 mHandler.post(new AppNotResponding(app, anrMessage)); 1307 } 1308 } 1309 1310 private final int ringAdvance(int x, final int increment, final int ringSize) { 1311 x += increment; 1312 if (x < 0) return (ringSize - 1); 1313 else if (x >= ringSize) return 0; 1314 else return x; 1315 } 1316 1317 private final void addBroadcastToHistoryLocked(BroadcastRecord r) { 1318 if (r.callingUid < 0) { 1319 // This was from a registerReceiver() call; ignore it. 1320 return; 1321 } 1322 r.finishTime = SystemClock.uptimeMillis(); 1323 1324 mBroadcastHistory[mHistoryNext] = r; 1325 mHistoryNext = ringAdvance(mHistoryNext, 1, MAX_BROADCAST_HISTORY); 1326 1327 mBroadcastSummaryHistory[mSummaryHistoryNext] = r.intent; 1328 mSummaryHistoryEnqueueTime[mSummaryHistoryNext] = r.enqueueClockTime; 1329 mSummaryHistoryDispatchTime[mSummaryHistoryNext] = r.dispatchClockTime; 1330 mSummaryHistoryFinishTime[mSummaryHistoryNext] = System.currentTimeMillis(); 1331 mSummaryHistoryNext = ringAdvance(mSummaryHistoryNext, 1, MAX_BROADCAST_SUMMARY_HISTORY); 1332 } 1333 1334 boolean cleanupDisabledPackageReceiversLocked( 1335 String packageName, Set<String> filterByClasses, int userId, boolean doit) { 1336 boolean didSomething = false; 1337 for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) { 1338 didSomething |= mParallelBroadcasts.get(i).cleanupDisabledPackageReceiversLocked( 1339 packageName, filterByClasses, userId, doit); 1340 if (!doit && didSomething) { 1341 return true; 1342 } 1343 } 1344 1345 for (int i = mOrderedBroadcasts.size() - 1; i >= 0; i--) { 1346 didSomething |= mOrderedBroadcasts.get(i).cleanupDisabledPackageReceiversLocked( 1347 packageName, filterByClasses, userId, doit); 1348 if (!doit && didSomething) { 1349 return true; 1350 } 1351 } 1352 1353 return didSomething; 1354 } 1355 1356 final void logBroadcastReceiverDiscardLocked(BroadcastRecord r) { 1357 final int logIndex = r.nextReceiver - 1; 1358 if (logIndex >= 0 && logIndex < r.receivers.size()) { 1359 Object curReceiver = r.receivers.get(logIndex); 1360 if (curReceiver instanceof BroadcastFilter) { 1361 BroadcastFilter bf = (BroadcastFilter) curReceiver; 1362 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_FILTER, 1363 bf.owningUserId, System.identityHashCode(r), 1364 r.intent.getAction(), logIndex, System.identityHashCode(bf)); 1365 } else { 1366 ResolveInfo ri = (ResolveInfo) curReceiver; 1367 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_APP, 1368 UserHandle.getUserId(ri.activityInfo.applicationInfo.uid), 1369 System.identityHashCode(r), r.intent.getAction(), logIndex, ri.toString()); 1370 } 1371 } else { 1372 if (logIndex < 0) Slog.w(TAG, 1373 "Discarding broadcast before first receiver is invoked: " + r); 1374 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_APP, 1375 -1, System.identityHashCode(r), 1376 r.intent.getAction(), 1377 r.nextReceiver, 1378 "NONE"); 1379 } 1380 } 1381 1382 final boolean dumpLocked(FileDescriptor fd, PrintWriter pw, String[] args, 1383 int opti, boolean dumpAll, String dumpPackage, boolean needSep) { 1384 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 1385 if (mParallelBroadcasts.size() > 0 || mOrderedBroadcasts.size() > 0 1386 || mPendingBroadcast != null) { 1387 boolean printed = false; 1388 for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) { 1389 BroadcastRecord br = mParallelBroadcasts.get(i); 1390 if (dumpPackage != null && !dumpPackage.equals(br.callerPackage)) { 1391 continue; 1392 } 1393 if (!printed) { 1394 if (needSep) { 1395 pw.println(); 1396 } 1397 needSep = true; 1398 printed = true; 1399 pw.println(" Active broadcasts [" + mQueueName + "]:"); 1400 } 1401 pw.println(" Active Broadcast " + mQueueName + " #" + i + ":"); 1402 br.dump(pw, " ", sdf); 1403 } 1404 printed = false; 1405 needSep = true; 1406 for (int i = mOrderedBroadcasts.size() - 1; i >= 0; i--) { 1407 BroadcastRecord br = mOrderedBroadcasts.get(i); 1408 if (dumpPackage != null && !dumpPackage.equals(br.callerPackage)) { 1409 continue; 1410 } 1411 if (!printed) { 1412 if (needSep) { 1413 pw.println(); 1414 } 1415 needSep = true; 1416 printed = true; 1417 pw.println(" Active ordered broadcasts [" + mQueueName + "]:"); 1418 } 1419 pw.println(" Active Ordered Broadcast " + mQueueName + " #" + i + ":"); 1420 mOrderedBroadcasts.get(i).dump(pw, " ", sdf); 1421 } 1422 if (dumpPackage == null || (mPendingBroadcast != null 1423 && dumpPackage.equals(mPendingBroadcast.callerPackage))) { 1424 if (needSep) { 1425 pw.println(); 1426 } 1427 pw.println(" Pending broadcast [" + mQueueName + "]:"); 1428 if (mPendingBroadcast != null) { 1429 mPendingBroadcast.dump(pw, " ", sdf); 1430 } else { 1431 pw.println(" (null)"); 1432 } 1433 needSep = true; 1434 } 1435 } 1436 1437 int i; 1438 boolean printed = false; 1439 1440 i = -1; 1441 int lastIndex = mHistoryNext; 1442 int ringIndex = lastIndex; 1443 do { 1444 // increasing index = more recent entry, and we want to print the most 1445 // recent first and work backwards, so we roll through the ring backwards. 1446 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_HISTORY); 1447 BroadcastRecord r = mBroadcastHistory[ringIndex]; 1448 if (r == null) { 1449 continue; 1450 } 1451 1452 i++; // genuine record of some sort even if we're filtering it out 1453 if (dumpPackage != null && !dumpPackage.equals(r.callerPackage)) { 1454 continue; 1455 } 1456 if (!printed) { 1457 if (needSep) { 1458 pw.println(); 1459 } 1460 needSep = true; 1461 pw.println(" Historical broadcasts [" + mQueueName + "]:"); 1462 printed = true; 1463 } 1464 if (dumpAll) { 1465 pw.print(" Historical Broadcast " + mQueueName + " #"); 1466 pw.print(i); pw.println(":"); 1467 r.dump(pw, " ", sdf); 1468 } else { 1469 pw.print(" #"); pw.print(i); pw.print(": "); pw.println(r); 1470 pw.print(" "); 1471 pw.println(r.intent.toShortString(false, true, true, false)); 1472 if (r.targetComp != null && r.targetComp != r.intent.getComponent()) { 1473 pw.print(" targetComp: "); pw.println(r.targetComp.toShortString()); 1474 } 1475 Bundle bundle = r.intent.getExtras(); 1476 if (bundle != null) { 1477 pw.print(" extras: "); pw.println(bundle.toString()); 1478 } 1479 } 1480 } while (ringIndex != lastIndex); 1481 1482 if (dumpPackage == null) { 1483 lastIndex = ringIndex = mSummaryHistoryNext; 1484 if (dumpAll) { 1485 printed = false; 1486 i = -1; 1487 } else { 1488 // roll over the 'i' full dumps that have already been issued 1489 for (int j = i; 1490 j > 0 && ringIndex != lastIndex;) { 1491 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_SUMMARY_HISTORY); 1492 BroadcastRecord r = mBroadcastHistory[ringIndex]; 1493 if (r == null) { 1494 continue; 1495 } 1496 j--; 1497 } 1498 } 1499 // done skipping; dump the remainder of the ring. 'i' is still the ordinal within 1500 // the overall broadcast history. 1501 do { 1502 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_SUMMARY_HISTORY); 1503 Intent intent = mBroadcastSummaryHistory[ringIndex]; 1504 if (intent == null) { 1505 continue; 1506 } 1507 if (!printed) { 1508 if (needSep) { 1509 pw.println(); 1510 } 1511 needSep = true; 1512 pw.println(" Historical broadcasts summary [" + mQueueName + "]:"); 1513 printed = true; 1514 } 1515 if (!dumpAll && i >= 50) { 1516 pw.println(" ..."); 1517 break; 1518 } 1519 i++; 1520 pw.print(" #"); pw.print(i); pw.print(": "); 1521 pw.println(intent.toShortString(false, true, true, false)); 1522 pw.print(" "); 1523 TimeUtils.formatDuration(mSummaryHistoryDispatchTime[ringIndex] 1524 - mSummaryHistoryEnqueueTime[ringIndex], pw); 1525 pw.print(" dispatch "); 1526 TimeUtils.formatDuration(mSummaryHistoryFinishTime[ringIndex] 1527 - mSummaryHistoryDispatchTime[ringIndex], pw); 1528 pw.println(" finish"); 1529 pw.print(" enq="); 1530 pw.print(sdf.format(new Date(mSummaryHistoryEnqueueTime[ringIndex]))); 1531 pw.print(" disp="); 1532 pw.print(sdf.format(new Date(mSummaryHistoryDispatchTime[ringIndex]))); 1533 pw.print(" fin="); 1534 pw.println(sdf.format(new Date(mSummaryHistoryFinishTime[ringIndex]))); 1535 Bundle bundle = intent.getExtras(); 1536 if (bundle != null) { 1537 pw.print(" extras: "); pw.println(bundle.toString()); 1538 } 1539 } while (ringIndex != lastIndex); 1540 } 1541 1542 return needSep; 1543 } 1544} 1545