BroadcastQueue.java revision e37520b49da8fc2b7b7501c6dbbe1e6ac984dd9f
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) { 497 int perm = mService.checkComponentPermission(r.requiredPermission, 498 filter.receiverList.pid, filter.receiverList.uid, -1, true); 499 if (perm != PackageManager.PERMISSION_GRANTED) { 500 Slog.w(TAG, "Permission Denial: receiving " 501 + r.intent.toString() 502 + " to " + filter.receiverList.app 503 + " (pid=" + filter.receiverList.pid 504 + ", uid=" + filter.receiverList.uid + ")" 505 + " requires " + r.requiredPermission 506 + " due to sender " + r.callerPackage 507 + " (uid " + r.callingUid + ")"); 508 skip = true; 509 } 510 int appOp = AppOpsManager.OP_NONE; 511 if (r.requiredPermission != null) { 512 appOp = AppOpsManager.permissionToOpCode(r.requiredPermission); 513 if (appOp != AppOpsManager.OP_NONE 514 && mService.mAppOpsService.noteOperation(appOp, 515 filter.receiverList.uid, filter.packageName) 516 != AppOpsManager.MODE_ALLOWED) { 517 Slog.w(TAG, "Appop Denial: receiving " 518 + r.intent.toString() 519 + " to " + filter.receiverList.app 520 + " (pid=" + filter.receiverList.pid 521 + ", uid=" + filter.receiverList.uid + ")" 522 + " requires appop " + AppOpsManager.permissionToOp( 523 r.requiredPermission) 524 + " due to sender " + r.callerPackage 525 + " (uid " + r.callingUid + ")"); 526 skip = true; 527 } 528 } 529 if (!skip && r.appOp != appOp && r.appOp != AppOpsManager.OP_NONE 530 && mService.mAppOpsService.noteOperation(r.appOp, 531 filter.receiverList.uid, filter.packageName) 532 != AppOpsManager.MODE_ALLOWED) { 533 Slog.w(TAG, "Appop Denial: receiving " 534 + r.intent.toString() 535 + " to " + filter.receiverList.app 536 + " (pid=" + filter.receiverList.pid 537 + ", uid=" + filter.receiverList.uid + ")" 538 + " requires appop " + AppOpsManager.permissionToOp( 539 r.requiredPermission) 540 + " due to sender " + r.callerPackage 541 + " (uid " + r.callingUid + ")"); 542 skip = true; 543 } 544 } 545 546 if (!skip) { 547 skip = !mService.mIntentFirewall.checkBroadcast(r.intent, r.callingUid, 548 r.callingPid, r.resolvedType, filter.receiverList.uid); 549 } 550 551 if (filter.receiverList.app == null || filter.receiverList.app.crashing) { 552 Slog.w(TAG, "Skipping deliver [" + mQueueName + "] " + r 553 + " to " + filter.receiverList + ": process crashing"); 554 skip = true; 555 } 556 557 if (!skip) { 558 // If this is not being sent as an ordered broadcast, then we 559 // don't want to touch the fields that keep track of the current 560 // state of ordered broadcasts. 561 if (ordered) { 562 r.receiver = filter.receiverList.receiver.asBinder(); 563 r.curFilter = filter; 564 filter.receiverList.curBroadcast = r; 565 r.state = BroadcastRecord.CALL_IN_RECEIVE; 566 if (filter.receiverList.app != null) { 567 // Bump hosting application to no longer be in background 568 // scheduling class. Note that we can't do that if there 569 // isn't an app... but we can only be in that case for 570 // things that directly call the IActivityManager API, which 571 // are already core system stuff so don't matter for this. 572 r.curApp = filter.receiverList.app; 573 filter.receiverList.app.curReceiver = r; 574 mService.updateOomAdjLocked(r.curApp); 575 } 576 } 577 try { 578 if (DEBUG_BROADCAST_LIGHT) Slog.i(TAG_BROADCAST, 579 "Delivering to " + filter + " : " + r); 580 performReceiveLocked(filter.receiverList.app, filter.receiverList.receiver, 581 new Intent(r.intent), r.resultCode, r.resultData, 582 r.resultExtras, r.ordered, r.initialSticky, r.userId); 583 if (ordered) { 584 r.state = BroadcastRecord.CALL_DONE_RECEIVE; 585 } 586 } catch (RemoteException e) { 587 Slog.w(TAG, "Failure sending broadcast " + r.intent, e); 588 if (ordered) { 589 r.receiver = null; 590 r.curFilter = null; 591 filter.receiverList.curBroadcast = null; 592 if (filter.receiverList.app != null) { 593 filter.receiverList.app.curReceiver = null; 594 } 595 } 596 } 597 } 598 } 599 600 final void scheduleTempWhitelistLocked(int uid, long duration) { 601 if (duration > Integer.MAX_VALUE) { 602 duration = Integer.MAX_VALUE; 603 } 604 // XXX ideally we should pause the broadcast until everything behind this is done, 605 // or else we will likely start dispatching the broadcast before we have opened 606 // access to the app (there is a lot of asynchronicity behind this). It is probably 607 // not that big a deal, however, because the main purpose here is to allow apps 608 // to hold wake locks, and they will be able to acquire their wake lock immediately 609 // it just won't be enabled until we get through this work. 610 mHandler.obtainMessage(SCHEDULE_TEMP_WHITELIST_MSG, uid, (int)duration).sendToTarget(); 611 } 612 613 final void processNextBroadcast(boolean fromMsg) { 614 synchronized(mService) { 615 BroadcastRecord r; 616 617 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "processNextBroadcast [" 618 + mQueueName + "]: " 619 + mParallelBroadcasts.size() + " broadcasts, " 620 + mOrderedBroadcasts.size() + " ordered broadcasts"); 621 622 mService.updateCpuStats(); 623 624 if (fromMsg) { 625 mBroadcastsScheduled = false; 626 } 627 628 // First, deliver any non-serialized broadcasts right away. 629 while (mParallelBroadcasts.size() > 0) { 630 r = mParallelBroadcasts.remove(0); 631 r.dispatchTime = SystemClock.uptimeMillis(); 632 r.dispatchClockTime = System.currentTimeMillis(); 633 final int N = r.receivers.size(); 634 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Processing parallel broadcast [" 635 + mQueueName + "] " + r); 636 for (int i=0; i<N; i++) { 637 Object target = r.receivers.get(i); 638 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 639 "Delivering non-ordered on [" + mQueueName + "] to registered " 640 + target + ": " + r); 641 deliverToRegisteredReceiverLocked(r, (BroadcastFilter)target, false); 642 } 643 addBroadcastToHistoryLocked(r); 644 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Done with parallel broadcast [" 645 + mQueueName + "] " + r); 646 } 647 648 // Now take care of the next serialized one... 649 650 // If we are waiting for a process to come up to handle the next 651 // broadcast, then do nothing at this point. Just in case, we 652 // check that the process we're waiting for still exists. 653 if (mPendingBroadcast != null) { 654 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, 655 "processNextBroadcast [" + mQueueName + "]: waiting for " 656 + mPendingBroadcast.curApp); 657 658 boolean isDead; 659 synchronized (mService.mPidsSelfLocked) { 660 ProcessRecord proc = mService.mPidsSelfLocked.get(mPendingBroadcast.curApp.pid); 661 isDead = proc == null || proc.crashing; 662 } 663 if (!isDead) { 664 // It's still alive, so keep waiting 665 return; 666 } else { 667 Slog.w(TAG, "pending app [" 668 + mQueueName + "]" + mPendingBroadcast.curApp 669 + " died before responding to broadcast"); 670 mPendingBroadcast.state = BroadcastRecord.IDLE; 671 mPendingBroadcast.nextReceiver = mPendingBroadcastRecvIndex; 672 mPendingBroadcast = null; 673 } 674 } 675 676 boolean looped = false; 677 678 do { 679 if (mOrderedBroadcasts.size() == 0) { 680 // No more broadcasts pending, so all done! 681 mService.scheduleAppGcsLocked(); 682 if (looped) { 683 // If we had finished the last ordered broadcast, then 684 // make sure all processes have correct oom and sched 685 // adjustments. 686 mService.updateOomAdjLocked(); 687 } 688 return; 689 } 690 r = mOrderedBroadcasts.get(0); 691 boolean forceReceive = false; 692 693 // Ensure that even if something goes awry with the timeout 694 // detection, we catch "hung" broadcasts here, discard them, 695 // and continue to make progress. 696 // 697 // This is only done if the system is ready so that PRE_BOOT_COMPLETED 698 // receivers don't get executed with timeouts. They're intended for 699 // one time heavy lifting after system upgrades and can take 700 // significant amounts of time. 701 int numReceivers = (r.receivers != null) ? r.receivers.size() : 0; 702 if (mService.mProcessesReady && r.dispatchTime > 0) { 703 long now = SystemClock.uptimeMillis(); 704 if ((numReceivers > 0) && 705 (now > r.dispatchTime + (2*mTimeoutPeriod*numReceivers))) { 706 Slog.w(TAG, "Hung broadcast [" 707 + mQueueName + "] discarded after timeout failure:" 708 + " now=" + now 709 + " dispatchTime=" + r.dispatchTime 710 + " startTime=" + r.receiverTime 711 + " intent=" + r.intent 712 + " numReceivers=" + numReceivers 713 + " nextReceiver=" + r.nextReceiver 714 + " state=" + r.state); 715 broadcastTimeoutLocked(false); // forcibly finish this broadcast 716 forceReceive = true; 717 r.state = BroadcastRecord.IDLE; 718 } 719 } 720 721 if (r.state != BroadcastRecord.IDLE) { 722 if (DEBUG_BROADCAST) Slog.d(TAG_BROADCAST, 723 "processNextBroadcast(" 724 + mQueueName + ") called when not idle (state=" 725 + r.state + ")"); 726 return; 727 } 728 729 if (r.receivers == null || r.nextReceiver >= numReceivers 730 || r.resultAbort || forceReceive) { 731 // No more receivers for this broadcast! Send the final 732 // result if requested... 733 if (r.resultTo != null) { 734 try { 735 if (DEBUG_BROADCAST) Slog.i(TAG_BROADCAST, 736 "Finishing broadcast [" + mQueueName + "] " 737 + r.intent.getAction() + " app=" + r.callerApp); 738 performReceiveLocked(r.callerApp, r.resultTo, 739 new Intent(r.intent), r.resultCode, 740 r.resultData, r.resultExtras, false, false, r.userId); 741 // Set this to null so that the reference 742 // (local and remote) isn't kept in the mBroadcastHistory. 743 r.resultTo = null; 744 } catch (RemoteException e) { 745 r.resultTo = null; 746 Slog.w(TAG, "Failure [" 747 + mQueueName + "] sending broadcast result of " 748 + r.intent, e); 749 } 750 } 751 752 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Cancelling BROADCAST_TIMEOUT_MSG"); 753 cancelBroadcastTimeoutLocked(); 754 755 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, 756 "Finished with ordered broadcast " + r); 757 758 // ... and on to the next... 759 addBroadcastToHistoryLocked(r); 760 mOrderedBroadcasts.remove(0); 761 r = null; 762 looped = true; 763 continue; 764 } 765 } while (r == null); 766 767 // Get the next receiver... 768 int recIdx = r.nextReceiver++; 769 770 // Keep track of when this receiver started, and make sure there 771 // is a timeout message pending to kill it if need be. 772 r.receiverTime = SystemClock.uptimeMillis(); 773 if (recIdx == 0) { 774 r.dispatchTime = r.receiverTime; 775 r.dispatchClockTime = System.currentTimeMillis(); 776 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Processing ordered broadcast [" 777 + mQueueName + "] " + r); 778 } 779 if (! mPendingBroadcastTimeoutMessage) { 780 long timeoutTime = r.receiverTime + mTimeoutPeriod; 781 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 782 "Submitting BROADCAST_TIMEOUT_MSG [" 783 + mQueueName + "] for " + r + " at " + timeoutTime); 784 setBroadcastTimeoutLocked(timeoutTime); 785 } 786 787 final BroadcastOptions brOptions = r.options; 788 final Object nextReceiver = r.receivers.get(recIdx); 789 790 if (nextReceiver instanceof BroadcastFilter) { 791 // Simple case: this is a registered receiver who gets 792 // a direct call. 793 BroadcastFilter filter = (BroadcastFilter)nextReceiver; 794 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 795 "Delivering ordered [" 796 + mQueueName + "] to registered " 797 + filter + ": " + r); 798 deliverToRegisteredReceiverLocked(r, filter, r.ordered); 799 if (r.receiver == null || !r.ordered) { 800 // The receiver has already finished, so schedule to 801 // process the next one. 802 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Quick finishing [" 803 + mQueueName + "]: ordered=" 804 + r.ordered + " receiver=" + r.receiver); 805 r.state = BroadcastRecord.IDLE; 806 scheduleBroadcastsLocked(); 807 } else { 808 if (brOptions != null && brOptions.getTemporaryAppWhitelistDuration() > 0) { 809 scheduleTempWhitelistLocked(filter.owningUid, 810 brOptions.getTemporaryAppWhitelistDuration()); 811 } 812 } 813 return; 814 } 815 816 // Hard case: need to instantiate the receiver, possibly 817 // starting its application process to host it. 818 819 ResolveInfo info = 820 (ResolveInfo)nextReceiver; 821 ComponentName component = new ComponentName( 822 info.activityInfo.applicationInfo.packageName, 823 info.activityInfo.name); 824 825 boolean skip = false; 826 int perm = mService.checkComponentPermission(info.activityInfo.permission, 827 r.callingPid, r.callingUid, info.activityInfo.applicationInfo.uid, 828 info.activityInfo.exported); 829 if (perm != PackageManager.PERMISSION_GRANTED) { 830 if (!info.activityInfo.exported) { 831 Slog.w(TAG, "Permission Denial: broadcasting " 832 + r.intent.toString() 833 + " from " + r.callerPackage + " (pid=" + r.callingPid 834 + ", uid=" + r.callingUid + ")" 835 + " is not exported from uid " + info.activityInfo.applicationInfo.uid 836 + " due to receiver " + component.flattenToShortString()); 837 } else { 838 Slog.w(TAG, "Permission Denial: broadcasting " 839 + r.intent.toString() 840 + " from " + r.callerPackage + " (pid=" + r.callingPid 841 + ", uid=" + r.callingUid + ")" 842 + " requires " + info.activityInfo.permission 843 + " due to receiver " + component.flattenToShortString()); 844 } 845 skip = true; 846 } else if (info.activityInfo.permission != null) { 847 final int opCode = AppOpsManager.permissionToOpCode(info.activityInfo.permission); 848 if (opCode != AppOpsManager.OP_NONE 849 && mService.mAppOpsService.noteOperation(opCode, r.callingUid, 850 r.callerPackage) != AppOpsManager.MODE_ALLOWED) { 851 Slog.w(TAG, "Appop Denial: broadcasting " 852 + r.intent.toString() 853 + " from " + r.callerPackage + " (pid=" 854 + r.callingPid + ", uid=" + r.callingUid + ")" 855 + " requires appop " + AppOpsManager.permissionToOp( 856 info.activityInfo.permission) 857 + " due to registered receiver " 858 + component.flattenToShortString()); 859 skip = true; 860 } 861 } 862 if (!skip && info.activityInfo.applicationInfo.uid != Process.SYSTEM_UID && 863 r.requiredPermission != null) { 864 try { 865 perm = AppGlobals.getPackageManager(). 866 checkPermission(r.requiredPermission, 867 info.activityInfo.applicationInfo.packageName, 868 UserHandle.getUserId(info.activityInfo.applicationInfo.uid)); 869 } catch (RemoteException e) { 870 perm = PackageManager.PERMISSION_DENIED; 871 } 872 if (perm != PackageManager.PERMISSION_GRANTED) { 873 Slog.w(TAG, "Permission Denial: receiving " 874 + r.intent + " to " 875 + component.flattenToShortString() 876 + " requires " + r.requiredPermission 877 + " due to sender " + r.callerPackage 878 + " (uid " + r.callingUid + ")"); 879 skip = true; 880 } 881 } 882 int appOp = AppOpsManager.OP_NONE; 883 if (!skip && r.requiredPermission != null) { 884 appOp = AppOpsManager.permissionToOpCode(r.requiredPermission); 885 if (appOp != AppOpsManager.OP_NONE 886 && mService.mAppOpsService.noteOperation(appOp, 887 info.activityInfo.applicationInfo.uid, info.activityInfo.packageName) 888 != AppOpsManager.MODE_ALLOWED) { 889 Slog.w(TAG, "Appop Denial: receiving " 890 + r.intent + " to " 891 + component.flattenToShortString() 892 + " requires appop " + AppOpsManager.permissionToOp( 893 r.requiredPermission) 894 + " due to sender " + r.callerPackage 895 + " (uid " + r.callingUid + ")"); 896 skip = true; 897 } 898 } 899 if (!skip && r.appOp != appOp && r.appOp != AppOpsManager.OP_NONE 900 && mService.mAppOpsService.noteOperation(r.appOp, 901 info.activityInfo.applicationInfo.uid, info.activityInfo.packageName) 902 != AppOpsManager.MODE_ALLOWED) { 903 Slog.w(TAG, "Appop Denial: receiving " 904 + r.intent + " to " 905 + component.flattenToShortString() 906 + " requires appop " + AppOpsManager.permissionToOp( 907 r.requiredPermission) 908 + " due to sender " + r.callerPackage 909 + " (uid " + r.callingUid + ")"); 910 skip = true; 911 } 912 if (!skip) { 913 skip = !mService.mIntentFirewall.checkBroadcast(r.intent, r.callingUid, 914 r.callingPid, r.resolvedType, info.activityInfo.applicationInfo.uid); 915 } 916 boolean isSingleton = false; 917 try { 918 isSingleton = mService.isSingleton(info.activityInfo.processName, 919 info.activityInfo.applicationInfo, 920 info.activityInfo.name, info.activityInfo.flags); 921 } catch (SecurityException e) { 922 Slog.w(TAG, e.getMessage()); 923 skip = true; 924 } 925 if ((info.activityInfo.flags&ActivityInfo.FLAG_SINGLE_USER) != 0) { 926 if (ActivityManager.checkUidPermission( 927 android.Manifest.permission.INTERACT_ACROSS_USERS, 928 info.activityInfo.applicationInfo.uid) 929 != PackageManager.PERMISSION_GRANTED) { 930 Slog.w(TAG, "Permission Denial: Receiver " + component.flattenToShortString() 931 + " requests FLAG_SINGLE_USER, but app does not hold " 932 + android.Manifest.permission.INTERACT_ACROSS_USERS); 933 skip = true; 934 } 935 } 936 if (r.curApp != null && r.curApp.crashing) { 937 // If the target process is crashing, just skip it. 938 Slog.w(TAG, "Skipping deliver ordered [" + mQueueName + "] " + r 939 + " to " + r.curApp + ": process crashing"); 940 skip = true; 941 } 942 if (!skip) { 943 boolean isAvailable = false; 944 try { 945 isAvailable = AppGlobals.getPackageManager().isPackageAvailable( 946 info.activityInfo.packageName, 947 UserHandle.getUserId(info.activityInfo.applicationInfo.uid)); 948 } catch (Exception e) { 949 // all such failures mean we skip this receiver 950 Slog.w(TAG, "Exception getting recipient info for " 951 + info.activityInfo.packageName, e); 952 } 953 if (!isAvailable) { 954 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 955 "Skipping delivery to " + info.activityInfo.packageName + " / " 956 + info.activityInfo.applicationInfo.uid 957 + " : package no longer available"); 958 skip = true; 959 } 960 } 961 962 if (skip) { 963 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 964 "Skipping delivery of ordered [" + mQueueName + "] " 965 + r + " for whatever reason"); 966 r.receiver = null; 967 r.curFilter = null; 968 r.state = BroadcastRecord.IDLE; 969 scheduleBroadcastsLocked(); 970 return; 971 } 972 973 r.state = BroadcastRecord.APP_RECEIVE; 974 String targetProcess = info.activityInfo.processName; 975 r.curComponent = component; 976 final int receiverUid = info.activityInfo.applicationInfo.uid; 977 // If it's a singleton, it needs to be the same app or a special app 978 if (r.callingUid != Process.SYSTEM_UID && isSingleton 979 && mService.isValidSingletonCall(r.callingUid, receiverUid)) { 980 info.activityInfo = mService.getActivityInfoForUser(info.activityInfo, 0); 981 } 982 r.curReceiver = info.activityInfo; 983 if (DEBUG_MU && r.callingUid > UserHandle.PER_USER_RANGE) { 984 Slog.v(TAG_MU, "Updated broadcast record activity info for secondary user, " 985 + info.activityInfo + ", callingUid = " + r.callingUid + ", uid = " 986 + info.activityInfo.applicationInfo.uid); 987 } 988 989 if (brOptions != null && brOptions.getTemporaryAppWhitelistDuration() > 0) { 990 scheduleTempWhitelistLocked(receiverUid, 991 brOptions.getTemporaryAppWhitelistDuration()); 992 } 993 994 // Broadcast is being executed, its package can't be stopped. 995 try { 996 AppGlobals.getPackageManager().setPackageStoppedState( 997 r.curComponent.getPackageName(), false, UserHandle.getUserId(r.callingUid)); 998 } catch (RemoteException e) { 999 } catch (IllegalArgumentException e) { 1000 Slog.w(TAG, "Failed trying to unstop package " 1001 + r.curComponent.getPackageName() + ": " + e); 1002 } 1003 1004 // Is this receiver's application already running? 1005 ProcessRecord app = mService.getProcessRecordLocked(targetProcess, 1006 info.activityInfo.applicationInfo.uid, false); 1007 if (app != null && app.thread != null) { 1008 try { 1009 app.addPackage(info.activityInfo.packageName, 1010 info.activityInfo.applicationInfo.versionCode, mService.mProcessStats); 1011 processCurBroadcastLocked(r, app); 1012 return; 1013 } catch (RemoteException e) { 1014 Slog.w(TAG, "Exception when sending broadcast to " 1015 + r.curComponent, e); 1016 } catch (RuntimeException e) { 1017 Slog.wtf(TAG, "Failed sending broadcast to " 1018 + r.curComponent + " with " + r.intent, e); 1019 // If some unexpected exception happened, just skip 1020 // this broadcast. At this point we are not in the call 1021 // from a client, so throwing an exception out from here 1022 // will crash the entire system instead of just whoever 1023 // sent the broadcast. 1024 logBroadcastReceiverDiscardLocked(r); 1025 finishReceiverLocked(r, r.resultCode, r.resultData, 1026 r.resultExtras, r.resultAbort, false); 1027 scheduleBroadcastsLocked(); 1028 // We need to reset the state if we failed to start the receiver. 1029 r.state = BroadcastRecord.IDLE; 1030 return; 1031 } 1032 1033 // If a dead object exception was thrown -- fall through to 1034 // restart the application. 1035 } 1036 1037 // Not running -- get it started, to be executed when the app comes up. 1038 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1039 "Need to start app [" 1040 + mQueueName + "] " + targetProcess + " for broadcast " + r); 1041 if ((r.curApp=mService.startProcessLocked(targetProcess, 1042 info.activityInfo.applicationInfo, true, 1043 r.intent.getFlags() | Intent.FLAG_FROM_BACKGROUND, 1044 "broadcast", r.curComponent, 1045 (r.intent.getFlags()&Intent.FLAG_RECEIVER_BOOT_UPGRADE) != 0, false, false)) 1046 == null) { 1047 // Ah, this recipient is unavailable. Finish it if necessary, 1048 // and mark the broadcast record as ready for the next. 1049 Slog.w(TAG, "Unable to launch app " 1050 + info.activityInfo.applicationInfo.packageName + "/" 1051 + info.activityInfo.applicationInfo.uid + " for broadcast " 1052 + r.intent + ": process is bad"); 1053 logBroadcastReceiverDiscardLocked(r); 1054 finishReceiverLocked(r, r.resultCode, r.resultData, 1055 r.resultExtras, r.resultAbort, false); 1056 scheduleBroadcastsLocked(); 1057 r.state = BroadcastRecord.IDLE; 1058 return; 1059 } 1060 1061 mPendingBroadcast = r; 1062 mPendingBroadcastRecvIndex = recIdx; 1063 } 1064 } 1065 1066 final void setBroadcastTimeoutLocked(long timeoutTime) { 1067 if (! mPendingBroadcastTimeoutMessage) { 1068 Message msg = mHandler.obtainMessage(BROADCAST_TIMEOUT_MSG, this); 1069 mHandler.sendMessageAtTime(msg, timeoutTime); 1070 mPendingBroadcastTimeoutMessage = true; 1071 } 1072 } 1073 1074 final void cancelBroadcastTimeoutLocked() { 1075 if (mPendingBroadcastTimeoutMessage) { 1076 mHandler.removeMessages(BROADCAST_TIMEOUT_MSG, this); 1077 mPendingBroadcastTimeoutMessage = false; 1078 } 1079 } 1080 1081 final void broadcastTimeoutLocked(boolean fromMsg) { 1082 if (fromMsg) { 1083 mPendingBroadcastTimeoutMessage = false; 1084 } 1085 1086 if (mOrderedBroadcasts.size() == 0) { 1087 return; 1088 } 1089 1090 long now = SystemClock.uptimeMillis(); 1091 BroadcastRecord r = mOrderedBroadcasts.get(0); 1092 if (fromMsg) { 1093 if (mService.mDidDexOpt) { 1094 // Delay timeouts until dexopt finishes. 1095 mService.mDidDexOpt = false; 1096 long timeoutTime = SystemClock.uptimeMillis() + mTimeoutPeriod; 1097 setBroadcastTimeoutLocked(timeoutTime); 1098 return; 1099 } 1100 if (!mService.mProcessesReady) { 1101 // Only process broadcast timeouts if the system is ready. That way 1102 // PRE_BOOT_COMPLETED broadcasts can't timeout as they are intended 1103 // to do heavy lifting for system up. 1104 return; 1105 } 1106 1107 long timeoutTime = r.receiverTime + mTimeoutPeriod; 1108 if (timeoutTime > now) { 1109 // We can observe premature timeouts because we do not cancel and reset the 1110 // broadcast timeout message after each receiver finishes. Instead, we set up 1111 // an initial timeout then kick it down the road a little further as needed 1112 // when it expires. 1113 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1114 "Premature timeout [" 1115 + mQueueName + "] @ " + now + ": resetting BROADCAST_TIMEOUT_MSG for " 1116 + timeoutTime); 1117 setBroadcastTimeoutLocked(timeoutTime); 1118 return; 1119 } 1120 } 1121 1122 BroadcastRecord br = mOrderedBroadcasts.get(0); 1123 if (br.state == BroadcastRecord.WAITING_SERVICES) { 1124 // In this case the broadcast had already finished, but we had decided to wait 1125 // for started services to finish as well before going on. So if we have actually 1126 // waited long enough time timeout the broadcast, let's give up on the whole thing 1127 // and just move on to the next. 1128 Slog.i(TAG, "Waited long enough for: " + (br.curComponent != null 1129 ? br.curComponent.flattenToShortString() : "(null)")); 1130 br.curComponent = null; 1131 br.state = BroadcastRecord.IDLE; 1132 processNextBroadcast(false); 1133 return; 1134 } 1135 1136 Slog.w(TAG, "Timeout of broadcast " + r + " - receiver=" + r. receiver 1137 + ", started " + (now - r.receiverTime) + "ms ago"); 1138 r.receiverTime = now; 1139 r.anrCount++; 1140 1141 // Current receiver has passed its expiration date. 1142 if (r.nextReceiver <= 0) { 1143 Slog.w(TAG, "Timeout on receiver with nextReceiver <= 0"); 1144 return; 1145 } 1146 1147 ProcessRecord app = null; 1148 String anrMessage = null; 1149 1150 Object curReceiver = r.receivers.get(r.nextReceiver-1); 1151 Slog.w(TAG, "Receiver during timeout: " + curReceiver); 1152 logBroadcastReceiverDiscardLocked(r); 1153 if (curReceiver instanceof BroadcastFilter) { 1154 BroadcastFilter bf = (BroadcastFilter)curReceiver; 1155 if (bf.receiverList.pid != 0 1156 && bf.receiverList.pid != ActivityManagerService.MY_PID) { 1157 synchronized (mService.mPidsSelfLocked) { 1158 app = mService.mPidsSelfLocked.get( 1159 bf.receiverList.pid); 1160 } 1161 } 1162 } else { 1163 app = r.curApp; 1164 } 1165 1166 if (app != null) { 1167 anrMessage = "Broadcast of " + r.intent.toString(); 1168 } 1169 1170 if (mPendingBroadcast == r) { 1171 mPendingBroadcast = null; 1172 } 1173 1174 // Move on to the next receiver. 1175 finishReceiverLocked(r, r.resultCode, r.resultData, 1176 r.resultExtras, r.resultAbort, false); 1177 scheduleBroadcastsLocked(); 1178 1179 if (anrMessage != null) { 1180 // Post the ANR to the handler since we do not want to process ANRs while 1181 // potentially holding our lock. 1182 mHandler.post(new AppNotResponding(app, anrMessage)); 1183 } 1184 } 1185 1186 private final int ringAdvance(int x, final int increment, final int ringSize) { 1187 x += increment; 1188 if (x < 0) return (ringSize - 1); 1189 else if (x >= ringSize) return 0; 1190 else return x; 1191 } 1192 1193 private final void addBroadcastToHistoryLocked(BroadcastRecord r) { 1194 if (r.callingUid < 0) { 1195 // This was from a registerReceiver() call; ignore it. 1196 return; 1197 } 1198 r.finishTime = SystemClock.uptimeMillis(); 1199 1200 mBroadcastHistory[mHistoryNext] = r; 1201 mHistoryNext = ringAdvance(mHistoryNext, 1, MAX_BROADCAST_HISTORY); 1202 1203 mBroadcastSummaryHistory[mSummaryHistoryNext] = r.intent; 1204 mSummaryHistoryEnqueueTime[mSummaryHistoryNext] = r.enqueueClockTime; 1205 mSummaryHistoryDispatchTime[mSummaryHistoryNext] = r.dispatchClockTime; 1206 mSummaryHistoryFinishTime[mSummaryHistoryNext] = System.currentTimeMillis(); 1207 mSummaryHistoryNext = ringAdvance(mSummaryHistoryNext, 1, MAX_BROADCAST_SUMMARY_HISTORY); 1208 } 1209 1210 boolean cleanupDisabledPackageReceiversLocked( 1211 String packageName, Set<String> filterByClasses, int userId, boolean doit) { 1212 boolean didSomething = false; 1213 for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) { 1214 didSomething |= mParallelBroadcasts.get(i).cleanupDisabledPackageReceiversLocked( 1215 packageName, filterByClasses, userId, doit); 1216 if (!doit && didSomething) { 1217 return true; 1218 } 1219 } 1220 1221 for (int i = mOrderedBroadcasts.size() - 1; i >= 0; i--) { 1222 didSomething |= mOrderedBroadcasts.get(i).cleanupDisabledPackageReceiversLocked( 1223 packageName, filterByClasses, userId, doit); 1224 if (!doit && didSomething) { 1225 return true; 1226 } 1227 } 1228 1229 return didSomething; 1230 } 1231 1232 final void logBroadcastReceiverDiscardLocked(BroadcastRecord r) { 1233 final int logIndex = r.nextReceiver - 1; 1234 if (logIndex >= 0 && logIndex < r.receivers.size()) { 1235 Object curReceiver = r.receivers.get(logIndex); 1236 if (curReceiver instanceof BroadcastFilter) { 1237 BroadcastFilter bf = (BroadcastFilter) curReceiver; 1238 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_FILTER, 1239 bf.owningUserId, System.identityHashCode(r), 1240 r.intent.getAction(), logIndex, System.identityHashCode(bf)); 1241 } else { 1242 ResolveInfo ri = (ResolveInfo) curReceiver; 1243 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_APP, 1244 UserHandle.getUserId(ri.activityInfo.applicationInfo.uid), 1245 System.identityHashCode(r), r.intent.getAction(), logIndex, ri.toString()); 1246 } 1247 } else { 1248 if (logIndex < 0) Slog.w(TAG, 1249 "Discarding broadcast before first receiver is invoked: " + r); 1250 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_APP, 1251 -1, System.identityHashCode(r), 1252 r.intent.getAction(), 1253 r.nextReceiver, 1254 "NONE"); 1255 } 1256 } 1257 1258 final boolean dumpLocked(FileDescriptor fd, PrintWriter pw, String[] args, 1259 int opti, boolean dumpAll, String dumpPackage, boolean needSep) { 1260 if (mParallelBroadcasts.size() > 0 || mOrderedBroadcasts.size() > 0 1261 || mPendingBroadcast != null) { 1262 boolean printed = false; 1263 for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) { 1264 BroadcastRecord br = mParallelBroadcasts.get(i); 1265 if (dumpPackage != null && !dumpPackage.equals(br.callerPackage)) { 1266 continue; 1267 } 1268 if (!printed) { 1269 if (needSep) { 1270 pw.println(); 1271 } 1272 needSep = true; 1273 printed = true; 1274 pw.println(" Active broadcasts [" + mQueueName + "]:"); 1275 } 1276 pw.println(" Active Broadcast " + mQueueName + " #" + i + ":"); 1277 br.dump(pw, " "); 1278 } 1279 printed = false; 1280 needSep = true; 1281 for (int i = mOrderedBroadcasts.size() - 1; i >= 0; i--) { 1282 BroadcastRecord br = mOrderedBroadcasts.get(i); 1283 if (dumpPackage != null && !dumpPackage.equals(br.callerPackage)) { 1284 continue; 1285 } 1286 if (!printed) { 1287 if (needSep) { 1288 pw.println(); 1289 } 1290 needSep = true; 1291 printed = true; 1292 pw.println(" Active ordered broadcasts [" + mQueueName + "]:"); 1293 } 1294 pw.println(" Active Ordered Broadcast " + mQueueName + " #" + i + ":"); 1295 mOrderedBroadcasts.get(i).dump(pw, " "); 1296 } 1297 if (dumpPackage == null || (mPendingBroadcast != null 1298 && dumpPackage.equals(mPendingBroadcast.callerPackage))) { 1299 if (needSep) { 1300 pw.println(); 1301 } 1302 pw.println(" Pending broadcast [" + mQueueName + "]:"); 1303 if (mPendingBroadcast != null) { 1304 mPendingBroadcast.dump(pw, " "); 1305 } else { 1306 pw.println(" (null)"); 1307 } 1308 needSep = true; 1309 } 1310 } 1311 1312 int i; 1313 boolean printed = false; 1314 1315 i = -1; 1316 int lastIndex = mHistoryNext; 1317 int ringIndex = lastIndex; 1318 do { 1319 // increasing index = more recent entry, and we want to print the most 1320 // recent first and work backwards, so we roll through the ring backwards. 1321 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_HISTORY); 1322 BroadcastRecord r = mBroadcastHistory[ringIndex]; 1323 if (r == null) { 1324 continue; 1325 } 1326 1327 i++; // genuine record of some sort even if we're filtering it out 1328 if (dumpPackage != null && !dumpPackage.equals(r.callerPackage)) { 1329 continue; 1330 } 1331 if (!printed) { 1332 if (needSep) { 1333 pw.println(); 1334 } 1335 needSep = true; 1336 pw.println(" Historical broadcasts [" + mQueueName + "]:"); 1337 printed = true; 1338 } 1339 if (dumpAll) { 1340 pw.print(" Historical Broadcast " + mQueueName + " #"); 1341 pw.print(i); pw.println(":"); 1342 r.dump(pw, " "); 1343 } else { 1344 pw.print(" #"); pw.print(i); pw.print(": "); pw.println(r); 1345 pw.print(" "); 1346 pw.println(r.intent.toShortString(false, true, true, false)); 1347 if (r.targetComp != null && r.targetComp != r.intent.getComponent()) { 1348 pw.print(" targetComp: "); pw.println(r.targetComp.toShortString()); 1349 } 1350 Bundle bundle = r.intent.getExtras(); 1351 if (bundle != null) { 1352 pw.print(" extras: "); pw.println(bundle.toString()); 1353 } 1354 } 1355 } while (ringIndex != lastIndex); 1356 1357 if (dumpPackage == null) { 1358 lastIndex = ringIndex = mSummaryHistoryNext; 1359 if (dumpAll) { 1360 printed = false; 1361 i = -1; 1362 } else { 1363 // roll over the 'i' full dumps that have already been issued 1364 for (int j = i; 1365 j > 0 && ringIndex != lastIndex;) { 1366 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_SUMMARY_HISTORY); 1367 BroadcastRecord r = mBroadcastHistory[ringIndex]; 1368 if (r == null) { 1369 continue; 1370 } 1371 j--; 1372 } 1373 } 1374 // done skipping; dump the remainder of the ring. 'i' is still the ordinal within 1375 // the overall broadcast history. 1376 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 1377 do { 1378 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_SUMMARY_HISTORY); 1379 Intent intent = mBroadcastSummaryHistory[ringIndex]; 1380 if (intent == null) { 1381 continue; 1382 } 1383 if (!printed) { 1384 if (needSep) { 1385 pw.println(); 1386 } 1387 needSep = true; 1388 pw.println(" Historical broadcasts summary [" + mQueueName + "]:"); 1389 printed = true; 1390 } 1391 if (!dumpAll && i >= 50) { 1392 pw.println(" ..."); 1393 break; 1394 } 1395 i++; 1396 pw.print(" #"); pw.print(i); pw.print(": "); 1397 pw.println(intent.toShortString(false, true, true, false)); 1398 pw.print(" enq="); pw.print(sdf.format(new Date(mSummaryHistoryEnqueueTime[ringIndex]))); 1399 pw.print(" disp="); pw.print(sdf.format(new Date(mSummaryHistoryDispatchTime[ringIndex]))); 1400 pw.print(" fin="); pw.println(sdf.format(new Date(mSummaryHistoryFinishTime[ringIndex]))); 1401 Bundle bundle = intent.getExtras(); 1402 if (bundle != null) { 1403 pw.print(" extras: "); pw.println(bundle.toString()); 1404 } 1405 } while (ringIndex != lastIndex); 1406 } 1407 1408 return needSep; 1409 } 1410} 1411