BroadcastQueue.java revision b4e7283c9afd9fb15ebd63f6ce9b75c9c1af658b
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.content.ComponentName; 31import android.content.IIntentReceiver; 32import android.content.Intent; 33import android.content.pm.ActivityInfo; 34import android.content.pm.PackageManager; 35import android.content.pm.ResolveInfo; 36import android.os.Bundle; 37import android.os.Handler; 38import android.os.IBinder; 39import android.os.Looper; 40import android.os.Message; 41import android.os.Process; 42import android.os.RemoteException; 43import android.os.SystemClock; 44import android.os.UserHandle; 45import android.util.EventLog; 46import android.util.Slog; 47import com.android.server.DeviceIdleController; 48 49import static com.android.server.am.ActivityManagerDebugConfig.*; 50 51/** 52 * BROADCASTS 53 * 54 * We keep two broadcast queues and associated bookkeeping, one for those at 55 * foreground priority, and one for normal (background-priority) broadcasts. 56 */ 57public final class BroadcastQueue { 58 private static final String TAG = "BroadcastQueue"; 59 private static final String TAG_MU = TAG + POSTFIX_MU; 60 private static final String TAG_BROADCAST = TAG + POSTFIX_BROADCAST; 61 62 static final int MAX_BROADCAST_HISTORY = ActivityManager.isLowRamDeviceStatic() ? 10 : 50; 63 static final int MAX_BROADCAST_SUMMARY_HISTORY 64 = ActivityManager.isLowRamDeviceStatic() ? 25 : 300; 65 66 final ActivityManagerService mService; 67 68 /** 69 * Recognizable moniker for this queue 70 */ 71 final String mQueueName; 72 73 /** 74 * Timeout period for this queue's broadcasts 75 */ 76 final long mTimeoutPeriod; 77 78 /** 79 * If true, we can delay broadcasts while waiting services to finish in the previous 80 * receiver's process. 81 */ 82 final boolean mDelayBehindServices; 83 84 /** 85 * Lists of all active broadcasts that are to be executed immediately 86 * (without waiting for another broadcast to finish). Currently this only 87 * contains broadcasts to registered receivers, to avoid spinning up 88 * a bunch of processes to execute IntentReceiver components. Background- 89 * and foreground-priority broadcasts are queued separately. 90 */ 91 final ArrayList<BroadcastRecord> mParallelBroadcasts = new ArrayList<>(); 92 93 /** 94 * List of all active broadcasts that are to be executed one at a time. 95 * The object at the top of the list is the currently activity broadcasts; 96 * those after it are waiting for the top to finish. As with parallel 97 * broadcasts, separate background- and foreground-priority queues are 98 * maintained. 99 */ 100 final ArrayList<BroadcastRecord> mOrderedBroadcasts = new ArrayList<>(); 101 102 /** 103 * Historical data of past broadcasts, for debugging. This is a ring buffer 104 * whose last element is at mHistoryNext. 105 */ 106 final BroadcastRecord[] mBroadcastHistory = new BroadcastRecord[MAX_BROADCAST_HISTORY]; 107 int mHistoryNext = 0; 108 109 /** 110 * Summary of historical data of past broadcasts, for debugging. This is a 111 * ring buffer whose last element is at mSummaryHistoryNext. 112 */ 113 final Intent[] mBroadcastSummaryHistory = new Intent[MAX_BROADCAST_SUMMARY_HISTORY]; 114 int mSummaryHistoryNext = 0; 115 116 /** 117 * Various milestone timestamps of entries in the mBroadcastSummaryHistory ring 118 * buffer, also tracked via the mSummaryHistoryNext index. These are all in wall 119 * clock time, not elapsed. 120 */ 121 final long[] mSummaryHistoryEnqueueTime = new long[MAX_BROADCAST_SUMMARY_HISTORY]; 122 final long[] mSummaryHistoryDispatchTime = new long[MAX_BROADCAST_SUMMARY_HISTORY]; 123 final long[] mSummaryHistoryFinishTime = new long[MAX_BROADCAST_SUMMARY_HISTORY]; 124 125 /** 126 * Set when we current have a BROADCAST_INTENT_MSG in flight. 127 */ 128 boolean mBroadcastsScheduled = false; 129 130 /** 131 * True if we have a pending unexpired BROADCAST_TIMEOUT_MSG posted to our handler. 132 */ 133 boolean mPendingBroadcastTimeoutMessage; 134 135 /** 136 * Intent broadcasts that we have tried to start, but are 137 * waiting for the application's process to be created. We only 138 * need one per scheduling class (instead of a list) because we always 139 * process broadcasts one at a time, so no others can be started while 140 * waiting for this one. 141 */ 142 BroadcastRecord mPendingBroadcast = null; 143 144 /** 145 * The receiver index that is pending, to restart the broadcast if needed. 146 */ 147 int mPendingBroadcastRecvIndex; 148 149 static final int BROADCAST_INTENT_MSG = ActivityManagerService.FIRST_BROADCAST_QUEUE_MSG; 150 static final int BROADCAST_TIMEOUT_MSG = ActivityManagerService.FIRST_BROADCAST_QUEUE_MSG + 1; 151 static final int SCHEDULE_TEMP_WHITELIST_MSG 152 = ActivityManagerService.FIRST_BROADCAST_QUEUE_MSG + 2; 153 154 final BroadcastHandler mHandler; 155 156 private final class BroadcastHandler extends Handler { 157 public BroadcastHandler(Looper looper) { 158 super(looper, null, true); 159 } 160 161 @Override 162 public void handleMessage(Message msg) { 163 switch (msg.what) { 164 case BROADCAST_INTENT_MSG: { 165 if (DEBUG_BROADCAST) Slog.v( 166 TAG_BROADCAST, "Received BROADCAST_INTENT_MSG"); 167 processNextBroadcast(true); 168 } break; 169 case BROADCAST_TIMEOUT_MSG: { 170 synchronized (mService) { 171 broadcastTimeoutLocked(true); 172 } 173 } break; 174 case SCHEDULE_TEMP_WHITELIST_MSG: { 175 DeviceIdleController.LocalService dic = mService.mLocalDeviceIdleController; 176 if (dic != null) { 177 dic.addPowerSaveTempWhitelistAppDirect(UserHandle.getAppId(msg.arg1), 178 msg.arg2); 179 } 180 } break; 181 } 182 } 183 }; 184 185 private final class AppNotResponding implements Runnable { 186 private final ProcessRecord mApp; 187 private final String mAnnotation; 188 189 public AppNotResponding(ProcessRecord app, String annotation) { 190 mApp = app; 191 mAnnotation = annotation; 192 } 193 194 @Override 195 public void run() { 196 mService.appNotResponding(mApp, null, null, false, mAnnotation); 197 } 198 } 199 200 BroadcastQueue(ActivityManagerService service, Handler handler, 201 String name, long timeoutPeriod, boolean allowDelayBehindServices) { 202 mService = service; 203 mHandler = new BroadcastHandler(handler.getLooper()); 204 mQueueName = name; 205 mTimeoutPeriod = timeoutPeriod; 206 mDelayBehindServices = allowDelayBehindServices; 207 } 208 209 public boolean isPendingBroadcastProcessLocked(int pid) { 210 return mPendingBroadcast != null && mPendingBroadcast.curApp.pid == pid; 211 } 212 213 public void enqueueParallelBroadcastLocked(BroadcastRecord r) { 214 mParallelBroadcasts.add(r); 215 r.enqueueClockTime = System.currentTimeMillis(); 216 } 217 218 public void enqueueOrderedBroadcastLocked(BroadcastRecord r) { 219 mOrderedBroadcasts.add(r); 220 r.enqueueClockTime = System.currentTimeMillis(); 221 } 222 223 public final boolean replaceParallelBroadcastLocked(BroadcastRecord r) { 224 for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) { 225 if (r.intent.filterEquals(mParallelBroadcasts.get(i).intent)) { 226 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 227 "***** DROPPING PARALLEL [" 228 + mQueueName + "]: " + r.intent); 229 mParallelBroadcasts.set(i, r); 230 return true; 231 } 232 } 233 return false; 234 } 235 236 public final boolean replaceOrderedBroadcastLocked(BroadcastRecord r) { 237 for (int i = mOrderedBroadcasts.size() - 1; i > 0; i--) { 238 if (r.intent.filterEquals(mOrderedBroadcasts.get(i).intent)) { 239 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 240 "***** DROPPING ORDERED [" 241 + mQueueName + "]: " + r.intent); 242 mOrderedBroadcasts.set(i, r); 243 return true; 244 } 245 } 246 return false; 247 } 248 249 private final void processCurBroadcastLocked(BroadcastRecord r, 250 ProcessRecord app) throws RemoteException { 251 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 252 "Process cur broadcast " + r + " for app " + app); 253 if (app.thread == null) { 254 throw new RemoteException(); 255 } 256 r.receiver = app.thread.asBinder(); 257 r.curApp = app; 258 app.curReceiver = r; 259 app.forceProcessStateUpTo(ActivityManager.PROCESS_STATE_RECEIVER); 260 mService.updateLruProcessLocked(app, false, null); 261 mService.updateOomAdjLocked(); 262 263 // Tell the application to launch this receiver. 264 r.intent.setComponent(r.curComponent); 265 266 boolean started = false; 267 try { 268 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, 269 "Delivering to component " + r.curComponent 270 + ": " + r); 271 mService.ensurePackageDexOpt(r.intent.getComponent().getPackageName()); 272 app.thread.scheduleReceiver(new Intent(r.intent), r.curReceiver, 273 mService.compatibilityInfoForPackageLocked(r.curReceiver.applicationInfo), 274 r.resultCode, r.resultData, r.resultExtras, r.ordered, r.userId, 275 app.repProcState); 276 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 277 "Process cur broadcast " + r + " DELIVERED for app " + app); 278 started = true; 279 } finally { 280 if (!started) { 281 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 282 "Process cur broadcast " + r + ": NOT STARTED!"); 283 r.receiver = null; 284 r.curApp = null; 285 app.curReceiver = null; 286 } 287 } 288 } 289 290 public boolean sendPendingBroadcastsLocked(ProcessRecord app) { 291 boolean didSomething = false; 292 final BroadcastRecord br = mPendingBroadcast; 293 if (br != null && br.curApp.pid == app.pid) { 294 try { 295 mPendingBroadcast = null; 296 processCurBroadcastLocked(br, app); 297 didSomething = true; 298 } catch (Exception e) { 299 Slog.w(TAG, "Exception in new application when starting receiver " 300 + br.curComponent.flattenToShortString(), e); 301 logBroadcastReceiverDiscardLocked(br); 302 finishReceiverLocked(br, br.resultCode, br.resultData, 303 br.resultExtras, br.resultAbort, false); 304 scheduleBroadcastsLocked(); 305 // We need to reset the state if we failed to start the receiver. 306 br.state = BroadcastRecord.IDLE; 307 throw new RuntimeException(e.getMessage()); 308 } 309 } 310 return didSomething; 311 } 312 313 public void skipPendingBroadcastLocked(int pid) { 314 final BroadcastRecord br = mPendingBroadcast; 315 if (br != null && br.curApp.pid == pid) { 316 br.state = BroadcastRecord.IDLE; 317 br.nextReceiver = mPendingBroadcastRecvIndex; 318 mPendingBroadcast = null; 319 scheduleBroadcastsLocked(); 320 } 321 } 322 323 public void skipCurrentReceiverLocked(ProcessRecord app) { 324 BroadcastRecord r = app.curReceiver; 325 if (r != null && r.queue == this) { 326 // The current broadcast is waiting for this app's receiver 327 // to be finished. Looks like that's not going to happen, so 328 // let the broadcast continue. 329 logBroadcastReceiverDiscardLocked(r); 330 finishReceiverLocked(r, r.resultCode, r.resultData, 331 r.resultExtras, r.resultAbort, false); 332 } 333 if (r == null && mPendingBroadcast != null && mPendingBroadcast.curApp == app) { 334 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 335 "[" + mQueueName + "] skip & discard pending app " + r); 336 r = mPendingBroadcast; 337 } 338 339 if (r != null) { 340 logBroadcastReceiverDiscardLocked(r); 341 finishReceiverLocked(r, r.resultCode, r.resultData, 342 r.resultExtras, r.resultAbort, false); 343 scheduleBroadcastsLocked(); 344 } 345 } 346 347 public void scheduleBroadcastsLocked() { 348 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Schedule broadcasts [" 349 + mQueueName + "]: current=" 350 + mBroadcastsScheduled); 351 352 if (mBroadcastsScheduled) { 353 return; 354 } 355 mHandler.sendMessage(mHandler.obtainMessage(BROADCAST_INTENT_MSG, this)); 356 mBroadcastsScheduled = true; 357 } 358 359 public BroadcastRecord getMatchingOrderedReceiver(IBinder receiver) { 360 if (mOrderedBroadcasts.size() > 0) { 361 final BroadcastRecord r = mOrderedBroadcasts.get(0); 362 if (r != null && r.receiver == receiver) { 363 return r; 364 } 365 } 366 return null; 367 } 368 369 public boolean finishReceiverLocked(BroadcastRecord r, int resultCode, 370 String resultData, Bundle resultExtras, boolean resultAbort, boolean waitForServices) { 371 final int state = r.state; 372 final ActivityInfo receiver = r.curReceiver; 373 r.state = BroadcastRecord.IDLE; 374 if (state == BroadcastRecord.IDLE) { 375 Slog.w(TAG, "finishReceiver [" + mQueueName + "] called but state is IDLE"); 376 } 377 r.receiver = null; 378 r.intent.setComponent(null); 379 if (r.curApp != null && r.curApp.curReceiver == r) { 380 r.curApp.curReceiver = null; 381 } 382 if (r.curFilter != null) { 383 r.curFilter.receiverList.curBroadcast = null; 384 } 385 r.curFilter = null; 386 r.curReceiver = null; 387 r.curApp = null; 388 mPendingBroadcast = null; 389 390 r.resultCode = resultCode; 391 r.resultData = resultData; 392 r.resultExtras = resultExtras; 393 if (resultAbort && (r.intent.getFlags()&Intent.FLAG_RECEIVER_NO_ABORT) == 0) { 394 r.resultAbort = resultAbort; 395 } else { 396 r.resultAbort = false; 397 } 398 399 if (waitForServices && r.curComponent != null && r.queue.mDelayBehindServices 400 && r.queue.mOrderedBroadcasts.size() > 0 401 && r.queue.mOrderedBroadcasts.get(0) == r) { 402 ActivityInfo nextReceiver; 403 if (r.nextReceiver < r.receivers.size()) { 404 Object obj = r.receivers.get(r.nextReceiver); 405 nextReceiver = (obj instanceof ActivityInfo) ? (ActivityInfo)obj : null; 406 } else { 407 nextReceiver = null; 408 } 409 // Don't do this if the next receive is in the same process as the current one. 410 if (receiver == null || nextReceiver == null 411 || receiver.applicationInfo.uid != nextReceiver.applicationInfo.uid 412 || !receiver.processName.equals(nextReceiver.processName)) { 413 // In this case, we are ready to process the next receiver for the current broadcast, 414 // but are on a queue that would like to wait for services to finish before moving 415 // on. If there are background services currently starting, then we will go into a 416 // special state where we hold off on continuing this broadcast until they are done. 417 if (mService.mServices.hasBackgroundServices(r.userId)) { 418 Slog.i(TAG, "Delay finish: " + r.curComponent.flattenToShortString()); 419 r.state = BroadcastRecord.WAITING_SERVICES; 420 return false; 421 } 422 } 423 } 424 425 r.curComponent = null; 426 427 // We will process the next receiver right now if this is finishing 428 // an app receiver (which is always asynchronous) or after we have 429 // come back from calling a receiver. 430 return state == BroadcastRecord.APP_RECEIVE 431 || state == BroadcastRecord.CALL_DONE_RECEIVE; 432 } 433 434 public void backgroundServicesFinishedLocked(int userId) { 435 if (mOrderedBroadcasts.size() > 0) { 436 BroadcastRecord br = mOrderedBroadcasts.get(0); 437 if (br.userId == userId && br.state == BroadcastRecord.WAITING_SERVICES) { 438 Slog.i(TAG, "Resuming delayed broadcast"); 439 br.curComponent = null; 440 br.state = BroadcastRecord.IDLE; 441 processNextBroadcast(false); 442 } 443 } 444 } 445 446 private static void performReceiveLocked(ProcessRecord app, IIntentReceiver receiver, 447 Intent intent, int resultCode, String data, Bundle extras, 448 boolean ordered, boolean sticky, int sendingUser) throws RemoteException { 449 // Send the intent to the receiver asynchronously using one-way binder calls. 450 if (app != null) { 451 if (app.thread != null) { 452 // If we have an app thread, do the call through that so it is 453 // correctly ordered with other one-way calls. 454 app.thread.scheduleRegisteredReceiver(receiver, intent, resultCode, 455 data, extras, ordered, sticky, sendingUser, app.repProcState); 456 } else { 457 // Application has died. Receiver doesn't exist. 458 throw new RemoteException("app.thread must not be null"); 459 } 460 } else { 461 receiver.performReceive(intent, resultCode, data, extras, ordered, 462 sticky, sendingUser); 463 } 464 } 465 466 private void deliverToRegisteredReceiverLocked(BroadcastRecord r, 467 BroadcastFilter filter, boolean ordered) { 468 boolean skip = false; 469 if (filter.requiredPermission != null) { 470 int perm = mService.checkComponentPermission(filter.requiredPermission, 471 r.callingPid, r.callingUid, -1, true); 472 if (perm != PackageManager.PERMISSION_GRANTED) { 473 Slog.w(TAG, "Permission Denial: broadcasting " 474 + r.intent.toString() 475 + " from " + r.callerPackage + " (pid=" 476 + r.callingPid + ", uid=" + r.callingUid + ")" 477 + " requires " + filter.requiredPermission 478 + " due to registered receiver " + filter); 479 skip = true; 480 } else { 481 final int opCode = AppOpsManager.permissionToOpCode(filter.requiredPermission); 482 if (opCode != AppOpsManager.OP_NONE 483 && mService.mAppOpsService.noteOperation(opCode, r.callingUid, 484 r.callerPackage) != AppOpsManager.MODE_ALLOWED) { 485 Slog.w(TAG, "Appop Denial: broadcasting " 486 + r.intent.toString() 487 + " from " + r.callerPackage + " (pid=" 488 + r.callingPid + ", uid=" + r.callingUid + ")" 489 + " requires appop " + AppOpsManager.permissionToOp( 490 filter.requiredPermission) 491 + " due to registered receiver " + filter); 492 skip = true; 493 } 494 } 495 } 496 if (!skip && r.requiredPermissions != null && r.requiredPermissions.length > 0) { 497 for (int i = 0; i < r.requiredPermissions.length; i++) { 498 String requiredPermission = r.requiredPermissions[i]; 499 int perm = mService.checkComponentPermission(requiredPermission, 500 filter.receiverList.pid, filter.receiverList.uid, -1, true); 501 if (perm != PackageManager.PERMISSION_GRANTED) { 502 Slog.w(TAG, "Permission Denial: receiving " 503 + r.intent.toString() 504 + " to " + filter.receiverList.app 505 + " (pid=" + filter.receiverList.pid 506 + ", uid=" + filter.receiverList.uid + ")" 507 + " requires " + requiredPermission 508 + " due to sender " + r.callerPackage 509 + " (uid " + r.callingUid + ")"); 510 skip = true; 511 break; 512 } 513 int appOp = AppOpsManager.permissionToOpCode(requiredPermission); 514 if (appOp != r.appOp 515 && mService.mAppOpsService.noteOperation(appOp, 516 filter.receiverList.uid, filter.packageName) 517 != AppOpsManager.MODE_ALLOWED) { 518 Slog.w(TAG, "Appop Denial: receiving " 519 + r.intent.toString() 520 + " to " + filter.receiverList.app 521 + " (pid=" + filter.receiverList.pid 522 + ", uid=" + filter.receiverList.uid + ")" 523 + " requires appop " + AppOpsManager.permissionToOp( 524 requiredPermission) 525 + " due to sender " + r.callerPackage 526 + " (uid " + r.callingUid + ")"); 527 skip = true; 528 break; 529 } 530 } 531 } 532 if (!skip && (r.requiredPermissions == null || r.requiredPermissions.length == 0)) { 533 int perm = mService.checkComponentPermission(null, 534 filter.receiverList.pid, filter.receiverList.uid, -1, true); 535 if (perm != PackageManager.PERMISSION_GRANTED) { 536 Slog.w(TAG, "Permission Denial: security check failed when receiving " 537 + r.intent.toString() 538 + " to " + filter.receiverList.app 539 + " (pid=" + filter.receiverList.pid 540 + ", uid=" + filter.receiverList.uid + ")" 541 + " due to sender " + r.callerPackage 542 + " (uid " + r.callingUid + ")"); 543 skip = true; 544 } 545 } 546 if (!skip && r.appOp != AppOpsManager.OP_NONE 547 && mService.mAppOpsService.noteOperation(r.appOp, 548 filter.receiverList.uid, filter.packageName) 549 != AppOpsManager.MODE_ALLOWED) { 550 Slog.w(TAG, "Appop Denial: receiving " 551 + r.intent.toString() 552 + " to " + filter.receiverList.app 553 + " (pid=" + filter.receiverList.pid 554 + ", uid=" + filter.receiverList.uid + ")" 555 + " requires appop " + AppOpsManager.opToName(r.appOp) 556 + " due to sender " + r.callerPackage 557 + " (uid " + r.callingUid + ")"); 558 skip = true; 559 } 560 561 if (!mService.mIntentFirewall.checkBroadcast(r.intent, r.callingUid, 562 r.callingPid, r.resolvedType, filter.receiverList.uid)) { 563 return; 564 } 565 566 if (filter.receiverList.app == null || filter.receiverList.app.crashing) { 567 Slog.w(TAG, "Skipping deliver [" + mQueueName + "] " + r 568 + " to " + filter.receiverList + ": process crashing"); 569 skip = true; 570 } 571 572 if (!skip) { 573 // If this is not being sent as an ordered broadcast, then we 574 // don't want to touch the fields that keep track of the current 575 // state of ordered broadcasts. 576 if (ordered) { 577 r.receiver = filter.receiverList.receiver.asBinder(); 578 r.curFilter = filter; 579 filter.receiverList.curBroadcast = r; 580 r.state = BroadcastRecord.CALL_IN_RECEIVE; 581 if (filter.receiverList.app != null) { 582 // Bump hosting application to no longer be in background 583 // scheduling class. Note that we can't do that if there 584 // isn't an app... but we can only be in that case for 585 // things that directly call the IActivityManager API, which 586 // are already core system stuff so don't matter for this. 587 r.curApp = filter.receiverList.app; 588 filter.receiverList.app.curReceiver = r; 589 mService.updateOomAdjLocked(r.curApp); 590 } 591 } 592 try { 593 if (DEBUG_BROADCAST_LIGHT) Slog.i(TAG_BROADCAST, 594 "Delivering to " + filter + " : " + r); 595 performReceiveLocked(filter.receiverList.app, filter.receiverList.receiver, 596 new Intent(r.intent), r.resultCode, r.resultData, 597 r.resultExtras, r.ordered, r.initialSticky, r.userId); 598 if (ordered) { 599 r.state = BroadcastRecord.CALL_DONE_RECEIVE; 600 } 601 } catch (RemoteException e) { 602 Slog.w(TAG, "Failure sending broadcast " + r.intent, e); 603 if (ordered) { 604 r.receiver = null; 605 r.curFilter = null; 606 filter.receiverList.curBroadcast = null; 607 if (filter.receiverList.app != null) { 608 filter.receiverList.app.curReceiver = null; 609 } 610 } 611 } 612 } 613 } 614 615 final void scheduleTempWhitelistLocked(int uid, long duration) { 616 if (duration > Integer.MAX_VALUE) { 617 duration = Integer.MAX_VALUE; 618 } 619 // XXX ideally we should pause the broadcast until everything behind this is done, 620 // or else we will likely start dispatching the broadcast before we have opened 621 // access to the app (there is a lot of asynchronicity behind this). It is probably 622 // not that big a deal, however, because the main purpose here is to allow apps 623 // to hold wake locks, and they will be able to acquire their wake lock immediately 624 // it just won't be enabled until we get through this work. 625 mHandler.obtainMessage(SCHEDULE_TEMP_WHITELIST_MSG, uid, (int)duration).sendToTarget(); 626 } 627 628 final void processNextBroadcast(boolean fromMsg) { 629 synchronized(mService) { 630 BroadcastRecord r; 631 632 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "processNextBroadcast [" 633 + mQueueName + "]: " 634 + mParallelBroadcasts.size() + " broadcasts, " 635 + mOrderedBroadcasts.size() + " ordered broadcasts"); 636 637 mService.updateCpuStats(); 638 639 if (fromMsg) { 640 mBroadcastsScheduled = false; 641 } 642 643 // First, deliver any non-serialized broadcasts right away. 644 while (mParallelBroadcasts.size() > 0) { 645 r = mParallelBroadcasts.remove(0); 646 r.dispatchTime = SystemClock.uptimeMillis(); 647 r.dispatchClockTime = System.currentTimeMillis(); 648 final int N = r.receivers.size(); 649 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Processing parallel broadcast [" 650 + mQueueName + "] " + r); 651 for (int i=0; i<N; i++) { 652 Object target = r.receivers.get(i); 653 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 654 "Delivering non-ordered on [" + mQueueName + "] to registered " 655 + target + ": " + r); 656 deliverToRegisteredReceiverLocked(r, (BroadcastFilter)target, false); 657 } 658 addBroadcastToHistoryLocked(r); 659 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Done with parallel broadcast [" 660 + mQueueName + "] " + r); 661 } 662 663 // Now take care of the next serialized one... 664 665 // If we are waiting for a process to come up to handle the next 666 // broadcast, then do nothing at this point. Just in case, we 667 // check that the process we're waiting for still exists. 668 if (mPendingBroadcast != null) { 669 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, 670 "processNextBroadcast [" + mQueueName + "]: waiting for " 671 + mPendingBroadcast.curApp); 672 673 boolean isDead; 674 synchronized (mService.mPidsSelfLocked) { 675 ProcessRecord proc = mService.mPidsSelfLocked.get(mPendingBroadcast.curApp.pid); 676 isDead = proc == null || proc.crashing; 677 } 678 if (!isDead) { 679 // It's still alive, so keep waiting 680 return; 681 } else { 682 Slog.w(TAG, "pending app [" 683 + mQueueName + "]" + mPendingBroadcast.curApp 684 + " died before responding to broadcast"); 685 mPendingBroadcast.state = BroadcastRecord.IDLE; 686 mPendingBroadcast.nextReceiver = mPendingBroadcastRecvIndex; 687 mPendingBroadcast = null; 688 } 689 } 690 691 boolean looped = false; 692 693 do { 694 if (mOrderedBroadcasts.size() == 0) { 695 // No more broadcasts pending, so all done! 696 mService.scheduleAppGcsLocked(); 697 if (looped) { 698 // If we had finished the last ordered broadcast, then 699 // make sure all processes have correct oom and sched 700 // adjustments. 701 mService.updateOomAdjLocked(); 702 } 703 return; 704 } 705 r = mOrderedBroadcasts.get(0); 706 boolean forceReceive = false; 707 708 // Ensure that even if something goes awry with the timeout 709 // detection, we catch "hung" broadcasts here, discard them, 710 // and continue to make progress. 711 // 712 // This is only done if the system is ready so that PRE_BOOT_COMPLETED 713 // receivers don't get executed with timeouts. They're intended for 714 // one time heavy lifting after system upgrades and can take 715 // significant amounts of time. 716 int numReceivers = (r.receivers != null) ? r.receivers.size() : 0; 717 if (mService.mProcessesReady && r.dispatchTime > 0) { 718 long now = SystemClock.uptimeMillis(); 719 if ((numReceivers > 0) && 720 (now > r.dispatchTime + (2*mTimeoutPeriod*numReceivers))) { 721 Slog.w(TAG, "Hung broadcast [" 722 + mQueueName + "] discarded after timeout failure:" 723 + " now=" + now 724 + " dispatchTime=" + r.dispatchTime 725 + " startTime=" + r.receiverTime 726 + " intent=" + r.intent 727 + " numReceivers=" + numReceivers 728 + " nextReceiver=" + r.nextReceiver 729 + " state=" + r.state); 730 broadcastTimeoutLocked(false); // forcibly finish this broadcast 731 forceReceive = true; 732 r.state = BroadcastRecord.IDLE; 733 } 734 } 735 736 if (r.state != BroadcastRecord.IDLE) { 737 if (DEBUG_BROADCAST) Slog.d(TAG_BROADCAST, 738 "processNextBroadcast(" 739 + mQueueName + ") called when not idle (state=" 740 + r.state + ")"); 741 return; 742 } 743 744 if (r.receivers == null || r.nextReceiver >= numReceivers 745 || r.resultAbort || forceReceive) { 746 // No more receivers for this broadcast! Send the final 747 // result if requested... 748 if (r.resultTo != null) { 749 try { 750 if (DEBUG_BROADCAST) Slog.i(TAG_BROADCAST, 751 "Finishing broadcast [" + mQueueName + "] " 752 + r.intent.getAction() + " app=" + r.callerApp); 753 performReceiveLocked(r.callerApp, r.resultTo, 754 new Intent(r.intent), r.resultCode, 755 r.resultData, r.resultExtras, false, false, r.userId); 756 // Set this to null so that the reference 757 // (local and remote) isn't kept in the mBroadcastHistory. 758 r.resultTo = null; 759 } catch (RemoteException e) { 760 r.resultTo = null; 761 Slog.w(TAG, "Failure [" 762 + mQueueName + "] sending broadcast result of " 763 + r.intent, e); 764 } 765 } 766 767 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Cancelling BROADCAST_TIMEOUT_MSG"); 768 cancelBroadcastTimeoutLocked(); 769 770 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, 771 "Finished with ordered broadcast " + r); 772 773 // ... and on to the next... 774 addBroadcastToHistoryLocked(r); 775 mOrderedBroadcasts.remove(0); 776 r = null; 777 looped = true; 778 continue; 779 } 780 } while (r == null); 781 782 // Get the next receiver... 783 int recIdx = r.nextReceiver++; 784 785 // Keep track of when this receiver started, and make sure there 786 // is a timeout message pending to kill it if need be. 787 r.receiverTime = SystemClock.uptimeMillis(); 788 if (recIdx == 0) { 789 r.dispatchTime = r.receiverTime; 790 r.dispatchClockTime = System.currentTimeMillis(); 791 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Processing ordered broadcast [" 792 + mQueueName + "] " + r); 793 } 794 if (! mPendingBroadcastTimeoutMessage) { 795 long timeoutTime = r.receiverTime + mTimeoutPeriod; 796 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 797 "Submitting BROADCAST_TIMEOUT_MSG [" 798 + mQueueName + "] for " + r + " at " + timeoutTime); 799 setBroadcastTimeoutLocked(timeoutTime); 800 } 801 802 final BroadcastOptions brOptions = r.options; 803 final Object nextReceiver = r.receivers.get(recIdx); 804 805 if (nextReceiver instanceof BroadcastFilter) { 806 // Simple case: this is a registered receiver who gets 807 // a direct call. 808 BroadcastFilter filter = (BroadcastFilter)nextReceiver; 809 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 810 "Delivering ordered [" 811 + mQueueName + "] to registered " 812 + filter + ": " + r); 813 deliverToRegisteredReceiverLocked(r, filter, r.ordered); 814 if (r.receiver == null || !r.ordered) { 815 // The receiver has already finished, so schedule to 816 // process the next one. 817 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Quick finishing [" 818 + mQueueName + "]: ordered=" 819 + r.ordered + " receiver=" + r.receiver); 820 r.state = BroadcastRecord.IDLE; 821 scheduleBroadcastsLocked(); 822 } else { 823 if (brOptions != null && brOptions.getTemporaryAppWhitelistDuration() > 0) { 824 scheduleTempWhitelistLocked(filter.owningUid, 825 brOptions.getTemporaryAppWhitelistDuration()); 826 } 827 } 828 return; 829 } 830 831 // Hard case: need to instantiate the receiver, possibly 832 // starting its application process to host it. 833 834 ResolveInfo info = 835 (ResolveInfo)nextReceiver; 836 ComponentName component = new ComponentName( 837 info.activityInfo.applicationInfo.packageName, 838 info.activityInfo.name); 839 840 boolean skip = false; 841 int perm = mService.checkComponentPermission(info.activityInfo.permission, 842 r.callingPid, r.callingUid, info.activityInfo.applicationInfo.uid, 843 info.activityInfo.exported); 844 if (perm != PackageManager.PERMISSION_GRANTED) { 845 if (!info.activityInfo.exported) { 846 Slog.w(TAG, "Permission Denial: broadcasting " 847 + r.intent.toString() 848 + " from " + r.callerPackage + " (pid=" + r.callingPid 849 + ", uid=" + r.callingUid + ")" 850 + " is not exported from uid " + info.activityInfo.applicationInfo.uid 851 + " due to receiver " + component.flattenToShortString()); 852 } else { 853 Slog.w(TAG, "Permission Denial: broadcasting " 854 + r.intent.toString() 855 + " from " + r.callerPackage + " (pid=" + r.callingPid 856 + ", uid=" + r.callingUid + ")" 857 + " requires " + info.activityInfo.permission 858 + " due to receiver " + component.flattenToShortString()); 859 } 860 skip = true; 861 } else if (info.activityInfo.permission != null) { 862 final int opCode = AppOpsManager.permissionToOpCode(info.activityInfo.permission); 863 if (opCode != AppOpsManager.OP_NONE 864 && mService.mAppOpsService.noteOperation(opCode, r.callingUid, 865 r.callerPackage) != AppOpsManager.MODE_ALLOWED) { 866 Slog.w(TAG, "Appop Denial: broadcasting " 867 + r.intent.toString() 868 + " from " + r.callerPackage + " (pid=" 869 + r.callingPid + ", uid=" + r.callingUid + ")" 870 + " requires appop " + AppOpsManager.permissionToOp( 871 info.activityInfo.permission) 872 + " due to registered receiver " 873 + component.flattenToShortString()); 874 skip = true; 875 } 876 } 877 if (!skip && info.activityInfo.applicationInfo.uid != Process.SYSTEM_UID && 878 r.requiredPermissions != null && r.requiredPermissions.length > 0) { 879 for (int i = 0; i < r.requiredPermissions.length; i++) { 880 String requiredPermission = r.requiredPermissions[i]; 881 try { 882 perm = AppGlobals.getPackageManager(). 883 checkPermission(requiredPermission, 884 info.activityInfo.applicationInfo.packageName, 885 UserHandle 886 .getUserId(info.activityInfo.applicationInfo.uid)); 887 } catch (RemoteException e) { 888 perm = PackageManager.PERMISSION_DENIED; 889 } 890 if (perm != PackageManager.PERMISSION_GRANTED) { 891 Slog.w(TAG, "Permission Denial: receiving " 892 + r.intent + " to " 893 + component.flattenToShortString() 894 + " requires " + requiredPermission 895 + " due to sender " + r.callerPackage 896 + " (uid " + r.callingUid + ")"); 897 skip = true; 898 break; 899 } 900 int appOp = AppOpsManager.permissionToOpCode(requiredPermission); 901 if (appOp != AppOpsManager.OP_NONE && appOp != r.appOp 902 && mService.mAppOpsService.noteOperation(appOp, 903 info.activityInfo.applicationInfo.uid, info.activityInfo.packageName) 904 != AppOpsManager.MODE_ALLOWED) { 905 Slog.w(TAG, "Appop Denial: receiving " 906 + r.intent + " to " 907 + component.flattenToShortString() 908 + " requires appop " + AppOpsManager.permissionToOp( 909 requiredPermission) 910 + " due to sender " + r.callerPackage 911 + " (uid " + r.callingUid + ")"); 912 skip = true; 913 break; 914 } 915 } 916 } 917 if (!skip && r.appOp != AppOpsManager.OP_NONE 918 && mService.mAppOpsService.noteOperation(r.appOp, 919 info.activityInfo.applicationInfo.uid, info.activityInfo.packageName) 920 != AppOpsManager.MODE_ALLOWED) { 921 Slog.w(TAG, "Appop Denial: receiving " 922 + r.intent + " to " 923 + component.flattenToShortString() 924 + " requires appop " + AppOpsManager.opToName(r.appOp) 925 + " due to sender " + r.callerPackage 926 + " (uid " + r.callingUid + ")"); 927 skip = true; 928 } 929 if (!skip) { 930 skip = !mService.mIntentFirewall.checkBroadcast(r.intent, r.callingUid, 931 r.callingPid, r.resolvedType, info.activityInfo.applicationInfo.uid); 932 } 933 boolean isSingleton = false; 934 try { 935 isSingleton = mService.isSingleton(info.activityInfo.processName, 936 info.activityInfo.applicationInfo, 937 info.activityInfo.name, info.activityInfo.flags); 938 } catch (SecurityException e) { 939 Slog.w(TAG, e.getMessage()); 940 skip = true; 941 } 942 if ((info.activityInfo.flags&ActivityInfo.FLAG_SINGLE_USER) != 0) { 943 if (ActivityManager.checkUidPermission( 944 android.Manifest.permission.INTERACT_ACROSS_USERS, 945 info.activityInfo.applicationInfo.uid) 946 != PackageManager.PERMISSION_GRANTED) { 947 Slog.w(TAG, "Permission Denial: Receiver " + component.flattenToShortString() 948 + " requests FLAG_SINGLE_USER, but app does not hold " 949 + android.Manifest.permission.INTERACT_ACROSS_USERS); 950 skip = true; 951 } 952 } 953 if (r.curApp != null && r.curApp.crashing) { 954 // If the target process is crashing, just skip it. 955 Slog.w(TAG, "Skipping deliver ordered [" + mQueueName + "] " + r 956 + " to " + r.curApp + ": process crashing"); 957 skip = true; 958 } 959 if (!skip) { 960 boolean isAvailable = false; 961 try { 962 isAvailable = AppGlobals.getPackageManager().isPackageAvailable( 963 info.activityInfo.packageName, 964 UserHandle.getUserId(info.activityInfo.applicationInfo.uid)); 965 } catch (Exception e) { 966 // all such failures mean we skip this receiver 967 Slog.w(TAG, "Exception getting recipient info for " 968 + info.activityInfo.packageName, e); 969 } 970 if (!isAvailable) { 971 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 972 "Skipping delivery to " + info.activityInfo.packageName + " / " 973 + info.activityInfo.applicationInfo.uid 974 + " : package no longer available"); 975 skip = true; 976 } 977 } 978 979 if (skip) { 980 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 981 "Skipping delivery of ordered [" + mQueueName + "] " 982 + r + " for whatever reason"); 983 r.receiver = null; 984 r.curFilter = null; 985 r.state = BroadcastRecord.IDLE; 986 scheduleBroadcastsLocked(); 987 return; 988 } 989 990 r.state = BroadcastRecord.APP_RECEIVE; 991 String targetProcess = info.activityInfo.processName; 992 r.curComponent = component; 993 final int receiverUid = info.activityInfo.applicationInfo.uid; 994 // If it's a singleton, it needs to be the same app or a special app 995 if (r.callingUid != Process.SYSTEM_UID && isSingleton 996 && mService.isValidSingletonCall(r.callingUid, receiverUid)) { 997 info.activityInfo = mService.getActivityInfoForUser(info.activityInfo, 0); 998 } 999 r.curReceiver = info.activityInfo; 1000 if (DEBUG_MU && r.callingUid > UserHandle.PER_USER_RANGE) { 1001 Slog.v(TAG_MU, "Updated broadcast record activity info for secondary user, " 1002 + info.activityInfo + ", callingUid = " + r.callingUid + ", uid = " 1003 + info.activityInfo.applicationInfo.uid); 1004 } 1005 1006 if (brOptions != null && brOptions.getTemporaryAppWhitelistDuration() > 0) { 1007 scheduleTempWhitelistLocked(receiverUid, 1008 brOptions.getTemporaryAppWhitelistDuration()); 1009 } 1010 1011 // Broadcast is being executed, its package can't be stopped. 1012 try { 1013 AppGlobals.getPackageManager().setPackageStoppedState( 1014 r.curComponent.getPackageName(), false, UserHandle.getUserId(r.callingUid)); 1015 } catch (RemoteException e) { 1016 } catch (IllegalArgumentException e) { 1017 Slog.w(TAG, "Failed trying to unstop package " 1018 + r.curComponent.getPackageName() + ": " + e); 1019 } 1020 1021 // Is this receiver's application already running? 1022 ProcessRecord app = mService.getProcessRecordLocked(targetProcess, 1023 info.activityInfo.applicationInfo.uid, false); 1024 if (app != null && app.thread != null) { 1025 try { 1026 app.addPackage(info.activityInfo.packageName, 1027 info.activityInfo.applicationInfo.versionCode, mService.mProcessStats); 1028 processCurBroadcastLocked(r, app); 1029 return; 1030 } catch (RemoteException e) { 1031 Slog.w(TAG, "Exception when sending broadcast to " 1032 + r.curComponent, e); 1033 } catch (RuntimeException e) { 1034 Slog.wtf(TAG, "Failed sending broadcast to " 1035 + r.curComponent + " with " + r.intent, e); 1036 // If some unexpected exception happened, just skip 1037 // this broadcast. At this point we are not in the call 1038 // from a client, so throwing an exception out from here 1039 // will crash the entire system instead of just whoever 1040 // sent the broadcast. 1041 logBroadcastReceiverDiscardLocked(r); 1042 finishReceiverLocked(r, r.resultCode, r.resultData, 1043 r.resultExtras, r.resultAbort, false); 1044 scheduleBroadcastsLocked(); 1045 // We need to reset the state if we failed to start the receiver. 1046 r.state = BroadcastRecord.IDLE; 1047 return; 1048 } 1049 1050 // If a dead object exception was thrown -- fall through to 1051 // restart the application. 1052 } 1053 1054 // Not running -- get it started, to be executed when the app comes up. 1055 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1056 "Need to start app [" 1057 + mQueueName + "] " + targetProcess + " for broadcast " + r); 1058 if ((r.curApp=mService.startProcessLocked(targetProcess, 1059 info.activityInfo.applicationInfo, true, 1060 r.intent.getFlags() | Intent.FLAG_FROM_BACKGROUND, 1061 "broadcast", r.curComponent, 1062 (r.intent.getFlags()&Intent.FLAG_RECEIVER_BOOT_UPGRADE) != 0, false, false)) 1063 == null) { 1064 // Ah, this recipient is unavailable. Finish it if necessary, 1065 // and mark the broadcast record as ready for the next. 1066 Slog.w(TAG, "Unable to launch app " 1067 + info.activityInfo.applicationInfo.packageName + "/" 1068 + info.activityInfo.applicationInfo.uid + " for broadcast " 1069 + r.intent + ": process is bad"); 1070 logBroadcastReceiverDiscardLocked(r); 1071 finishReceiverLocked(r, r.resultCode, r.resultData, 1072 r.resultExtras, r.resultAbort, false); 1073 scheduleBroadcastsLocked(); 1074 r.state = BroadcastRecord.IDLE; 1075 return; 1076 } 1077 1078 mPendingBroadcast = r; 1079 mPendingBroadcastRecvIndex = recIdx; 1080 } 1081 } 1082 1083 final void setBroadcastTimeoutLocked(long timeoutTime) { 1084 if (! mPendingBroadcastTimeoutMessage) { 1085 Message msg = mHandler.obtainMessage(BROADCAST_TIMEOUT_MSG, this); 1086 mHandler.sendMessageAtTime(msg, timeoutTime); 1087 mPendingBroadcastTimeoutMessage = true; 1088 } 1089 } 1090 1091 final void cancelBroadcastTimeoutLocked() { 1092 if (mPendingBroadcastTimeoutMessage) { 1093 mHandler.removeMessages(BROADCAST_TIMEOUT_MSG, this); 1094 mPendingBroadcastTimeoutMessage = false; 1095 } 1096 } 1097 1098 final void broadcastTimeoutLocked(boolean fromMsg) { 1099 if (fromMsg) { 1100 mPendingBroadcastTimeoutMessage = false; 1101 } 1102 1103 if (mOrderedBroadcasts.size() == 0) { 1104 return; 1105 } 1106 1107 long now = SystemClock.uptimeMillis(); 1108 BroadcastRecord r = mOrderedBroadcasts.get(0); 1109 if (fromMsg) { 1110 if (mService.mDidDexOpt) { 1111 // Delay timeouts until dexopt finishes. 1112 mService.mDidDexOpt = false; 1113 long timeoutTime = SystemClock.uptimeMillis() + mTimeoutPeriod; 1114 setBroadcastTimeoutLocked(timeoutTime); 1115 return; 1116 } 1117 if (!mService.mProcessesReady) { 1118 // Only process broadcast timeouts if the system is ready. That way 1119 // PRE_BOOT_COMPLETED broadcasts can't timeout as they are intended 1120 // to do heavy lifting for system up. 1121 return; 1122 } 1123 1124 long timeoutTime = r.receiverTime + mTimeoutPeriod; 1125 if (timeoutTime > now) { 1126 // We can observe premature timeouts because we do not cancel and reset the 1127 // broadcast timeout message after each receiver finishes. Instead, we set up 1128 // an initial timeout then kick it down the road a little further as needed 1129 // when it expires. 1130 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1131 "Premature timeout [" 1132 + mQueueName + "] @ " + now + ": resetting BROADCAST_TIMEOUT_MSG for " 1133 + timeoutTime); 1134 setBroadcastTimeoutLocked(timeoutTime); 1135 return; 1136 } 1137 } 1138 1139 BroadcastRecord br = mOrderedBroadcasts.get(0); 1140 if (br.state == BroadcastRecord.WAITING_SERVICES) { 1141 // In this case the broadcast had already finished, but we had decided to wait 1142 // for started services to finish as well before going on. So if we have actually 1143 // waited long enough time timeout the broadcast, let's give up on the whole thing 1144 // and just move on to the next. 1145 Slog.i(TAG, "Waited long enough for: " + (br.curComponent != null 1146 ? br.curComponent.flattenToShortString() : "(null)")); 1147 br.curComponent = null; 1148 br.state = BroadcastRecord.IDLE; 1149 processNextBroadcast(false); 1150 return; 1151 } 1152 1153 Slog.w(TAG, "Timeout of broadcast " + r + " - receiver=" + r. receiver 1154 + ", started " + (now - r.receiverTime) + "ms ago"); 1155 r.receiverTime = now; 1156 r.anrCount++; 1157 1158 // Current receiver has passed its expiration date. 1159 if (r.nextReceiver <= 0) { 1160 Slog.w(TAG, "Timeout on receiver with nextReceiver <= 0"); 1161 return; 1162 } 1163 1164 ProcessRecord app = null; 1165 String anrMessage = null; 1166 1167 Object curReceiver = r.receivers.get(r.nextReceiver-1); 1168 Slog.w(TAG, "Receiver during timeout: " + curReceiver); 1169 logBroadcastReceiverDiscardLocked(r); 1170 if (curReceiver instanceof BroadcastFilter) { 1171 BroadcastFilter bf = (BroadcastFilter)curReceiver; 1172 if (bf.receiverList.pid != 0 1173 && bf.receiverList.pid != ActivityManagerService.MY_PID) { 1174 synchronized (mService.mPidsSelfLocked) { 1175 app = mService.mPidsSelfLocked.get( 1176 bf.receiverList.pid); 1177 } 1178 } 1179 } else { 1180 app = r.curApp; 1181 } 1182 1183 if (app != null) { 1184 anrMessage = "Broadcast of " + r.intent.toString(); 1185 } 1186 1187 if (mPendingBroadcast == r) { 1188 mPendingBroadcast = null; 1189 } 1190 1191 // Move on to the next receiver. 1192 finishReceiverLocked(r, r.resultCode, r.resultData, 1193 r.resultExtras, r.resultAbort, false); 1194 scheduleBroadcastsLocked(); 1195 1196 if (anrMessage != null) { 1197 // Post the ANR to the handler since we do not want to process ANRs while 1198 // potentially holding our lock. 1199 mHandler.post(new AppNotResponding(app, anrMessage)); 1200 } 1201 } 1202 1203 private final int ringAdvance(int x, final int increment, final int ringSize) { 1204 x += increment; 1205 if (x < 0) return (ringSize - 1); 1206 else if (x >= ringSize) return 0; 1207 else return x; 1208 } 1209 1210 private final void addBroadcastToHistoryLocked(BroadcastRecord r) { 1211 if (r.callingUid < 0) { 1212 // This was from a registerReceiver() call; ignore it. 1213 return; 1214 } 1215 r.finishTime = SystemClock.uptimeMillis(); 1216 1217 mBroadcastHistory[mHistoryNext] = r; 1218 mHistoryNext = ringAdvance(mHistoryNext, 1, MAX_BROADCAST_HISTORY); 1219 1220 mBroadcastSummaryHistory[mSummaryHistoryNext] = r.intent; 1221 mSummaryHistoryEnqueueTime[mSummaryHistoryNext] = r.enqueueClockTime; 1222 mSummaryHistoryDispatchTime[mSummaryHistoryNext] = r.dispatchClockTime; 1223 mSummaryHistoryFinishTime[mSummaryHistoryNext] = System.currentTimeMillis(); 1224 mSummaryHistoryNext = ringAdvance(mSummaryHistoryNext, 1, MAX_BROADCAST_SUMMARY_HISTORY); 1225 } 1226 1227 boolean cleanupDisabledPackageReceiversLocked( 1228 String packageName, Set<String> filterByClasses, int userId, boolean doit) { 1229 boolean didSomething = false; 1230 for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) { 1231 didSomething |= mParallelBroadcasts.get(i).cleanupDisabledPackageReceiversLocked( 1232 packageName, filterByClasses, userId, doit); 1233 if (!doit && didSomething) { 1234 return true; 1235 } 1236 } 1237 1238 for (int i = mOrderedBroadcasts.size() - 1; i >= 0; i--) { 1239 didSomething |= mOrderedBroadcasts.get(i).cleanupDisabledPackageReceiversLocked( 1240 packageName, filterByClasses, userId, doit); 1241 if (!doit && didSomething) { 1242 return true; 1243 } 1244 } 1245 1246 return didSomething; 1247 } 1248 1249 final void logBroadcastReceiverDiscardLocked(BroadcastRecord r) { 1250 final int logIndex = r.nextReceiver - 1; 1251 if (logIndex >= 0 && logIndex < r.receivers.size()) { 1252 Object curReceiver = r.receivers.get(logIndex); 1253 if (curReceiver instanceof BroadcastFilter) { 1254 BroadcastFilter bf = (BroadcastFilter) curReceiver; 1255 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_FILTER, 1256 bf.owningUserId, System.identityHashCode(r), 1257 r.intent.getAction(), logIndex, System.identityHashCode(bf)); 1258 } else { 1259 ResolveInfo ri = (ResolveInfo) curReceiver; 1260 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_APP, 1261 UserHandle.getUserId(ri.activityInfo.applicationInfo.uid), 1262 System.identityHashCode(r), r.intent.getAction(), logIndex, ri.toString()); 1263 } 1264 } else { 1265 if (logIndex < 0) Slog.w(TAG, 1266 "Discarding broadcast before first receiver is invoked: " + r); 1267 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_APP, 1268 -1, System.identityHashCode(r), 1269 r.intent.getAction(), 1270 r.nextReceiver, 1271 "NONE"); 1272 } 1273 } 1274 1275 final boolean dumpLocked(FileDescriptor fd, PrintWriter pw, String[] args, 1276 int opti, boolean dumpAll, String dumpPackage, boolean needSep) { 1277 if (mParallelBroadcasts.size() > 0 || mOrderedBroadcasts.size() > 0 1278 || mPendingBroadcast != null) { 1279 boolean printed = false; 1280 for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) { 1281 BroadcastRecord br = mParallelBroadcasts.get(i); 1282 if (dumpPackage != null && !dumpPackage.equals(br.callerPackage)) { 1283 continue; 1284 } 1285 if (!printed) { 1286 if (needSep) { 1287 pw.println(); 1288 } 1289 needSep = true; 1290 printed = true; 1291 pw.println(" Active broadcasts [" + mQueueName + "]:"); 1292 } 1293 pw.println(" Active Broadcast " + mQueueName + " #" + i + ":"); 1294 br.dump(pw, " "); 1295 } 1296 printed = false; 1297 needSep = true; 1298 for (int i = mOrderedBroadcasts.size() - 1; i >= 0; i--) { 1299 BroadcastRecord br = mOrderedBroadcasts.get(i); 1300 if (dumpPackage != null && !dumpPackage.equals(br.callerPackage)) { 1301 continue; 1302 } 1303 if (!printed) { 1304 if (needSep) { 1305 pw.println(); 1306 } 1307 needSep = true; 1308 printed = true; 1309 pw.println(" Active ordered broadcasts [" + mQueueName + "]:"); 1310 } 1311 pw.println(" Active Ordered Broadcast " + mQueueName + " #" + i + ":"); 1312 mOrderedBroadcasts.get(i).dump(pw, " "); 1313 } 1314 if (dumpPackage == null || (mPendingBroadcast != null 1315 && dumpPackage.equals(mPendingBroadcast.callerPackage))) { 1316 if (needSep) { 1317 pw.println(); 1318 } 1319 pw.println(" Pending broadcast [" + mQueueName + "]:"); 1320 if (mPendingBroadcast != null) { 1321 mPendingBroadcast.dump(pw, " "); 1322 } else { 1323 pw.println(" (null)"); 1324 } 1325 needSep = true; 1326 } 1327 } 1328 1329 int i; 1330 boolean printed = false; 1331 1332 i = -1; 1333 int lastIndex = mHistoryNext; 1334 int ringIndex = lastIndex; 1335 do { 1336 // increasing index = more recent entry, and we want to print the most 1337 // recent first and work backwards, so we roll through the ring backwards. 1338 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_HISTORY); 1339 BroadcastRecord r = mBroadcastHistory[ringIndex]; 1340 if (r == null) { 1341 continue; 1342 } 1343 1344 i++; // genuine record of some sort even if we're filtering it out 1345 if (dumpPackage != null && !dumpPackage.equals(r.callerPackage)) { 1346 continue; 1347 } 1348 if (!printed) { 1349 if (needSep) { 1350 pw.println(); 1351 } 1352 needSep = true; 1353 pw.println(" Historical broadcasts [" + mQueueName + "]:"); 1354 printed = true; 1355 } 1356 if (dumpAll) { 1357 pw.print(" Historical Broadcast " + mQueueName + " #"); 1358 pw.print(i); pw.println(":"); 1359 r.dump(pw, " "); 1360 } else { 1361 pw.print(" #"); pw.print(i); pw.print(": "); pw.println(r); 1362 pw.print(" "); 1363 pw.println(r.intent.toShortString(false, true, true, false)); 1364 if (r.targetComp != null && r.targetComp != r.intent.getComponent()) { 1365 pw.print(" targetComp: "); pw.println(r.targetComp.toShortString()); 1366 } 1367 Bundle bundle = r.intent.getExtras(); 1368 if (bundle != null) { 1369 pw.print(" extras: "); pw.println(bundle.toString()); 1370 } 1371 } 1372 } while (ringIndex != lastIndex); 1373 1374 if (dumpPackage == null) { 1375 lastIndex = ringIndex = mSummaryHistoryNext; 1376 if (dumpAll) { 1377 printed = false; 1378 i = -1; 1379 } else { 1380 // roll over the 'i' full dumps that have already been issued 1381 for (int j = i; 1382 j > 0 && ringIndex != lastIndex;) { 1383 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_SUMMARY_HISTORY); 1384 BroadcastRecord r = mBroadcastHistory[ringIndex]; 1385 if (r == null) { 1386 continue; 1387 } 1388 j--; 1389 } 1390 } 1391 // done skipping; dump the remainder of the ring. 'i' is still the ordinal within 1392 // the overall broadcast history. 1393 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 1394 do { 1395 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_SUMMARY_HISTORY); 1396 Intent intent = mBroadcastSummaryHistory[ringIndex]; 1397 if (intent == null) { 1398 continue; 1399 } 1400 if (!printed) { 1401 if (needSep) { 1402 pw.println(); 1403 } 1404 needSep = true; 1405 pw.println(" Historical broadcasts summary [" + mQueueName + "]:"); 1406 printed = true; 1407 } 1408 if (!dumpAll && i >= 50) { 1409 pw.println(" ..."); 1410 break; 1411 } 1412 i++; 1413 pw.print(" #"); pw.print(i); pw.print(": "); 1414 pw.println(intent.toShortString(false, true, true, false)); 1415 pw.print(" enq="); pw.print(sdf.format(new Date(mSummaryHistoryEnqueueTime[ringIndex]))); 1416 pw.print(" disp="); pw.print(sdf.format(new Date(mSummaryHistoryDispatchTime[ringIndex]))); 1417 pw.print(" fin="); pw.println(sdf.format(new Date(mSummaryHistoryFinishTime[ringIndex]))); 1418 Bundle bundle = intent.getExtras(); 1419 if (bundle != null) { 1420 pw.print(" extras: "); pw.println(bundle.toString()); 1421 } 1422 } while (ringIndex != lastIndex); 1423 } 1424 1425 return needSep; 1426 } 1427} 1428