TvInputManagerService.java revision e14c3f4fc42e2dc83cf4aba711c5ff52d8bbe3ea
1/* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.tv; 18 19import android.app.ActivityManager; 20import android.content.BroadcastReceiver; 21import android.content.ComponentName; 22import android.content.ContentProviderOperation; 23import android.content.ContentProviderResult; 24import android.content.ContentResolver; 25import android.content.ContentUris; 26import android.content.ContentValues; 27import android.content.Context; 28import android.content.Intent; 29import android.content.IntentFilter; 30import android.content.OperationApplicationException; 31import android.content.ServiceConnection; 32import android.content.pm.PackageManager; 33import android.content.pm.ResolveInfo; 34import android.content.pm.ServiceInfo; 35import android.database.Cursor; 36import android.graphics.Rect; 37import android.media.tv.ITvInputClient; 38import android.media.tv.ITvInputHardware; 39import android.media.tv.ITvInputHardwareCallback; 40import android.media.tv.ITvInputManager; 41import android.media.tv.ITvInputService; 42import android.media.tv.ITvInputServiceCallback; 43import android.media.tv.ITvInputSession; 44import android.media.tv.ITvInputSessionCallback; 45import android.media.tv.TvContract; 46import android.media.tv.TvInputHardwareInfo; 47import android.media.tv.TvInputInfo; 48import android.media.tv.TvInputService; 49import android.net.Uri; 50import android.os.Binder; 51import android.os.Bundle; 52import android.os.Handler; 53import android.os.IBinder; 54import android.os.Looper; 55import android.os.Message; 56import android.os.Process; 57import android.os.RemoteException; 58import android.os.UserHandle; 59import android.util.Slog; 60import android.util.SparseArray; 61import android.view.InputChannel; 62import android.view.Surface; 63 64import com.android.internal.content.PackageMonitor; 65import com.android.internal.os.SomeArgs; 66import com.android.internal.util.IndentingPrintWriter; 67import com.android.server.IoThread; 68import com.android.server.SystemService; 69 70import org.xmlpull.v1.XmlPullParserException; 71 72import java.io.FileDescriptor; 73import java.io.IOException; 74import java.io.PrintWriter; 75import java.util.ArrayList; 76import java.util.HashMap; 77import java.util.HashSet; 78import java.util.List; 79import java.util.Map; 80import java.util.Set; 81 82/** This class provides a system service that manages television inputs. */ 83public final class TvInputManagerService extends SystemService { 84 // STOPSHIP: Turn debugging off. 85 private static final boolean DEBUG = true; 86 private static final String TAG = "TvInputManagerService"; 87 88 private final Context mContext; 89 private final TvInputHardwareManager mTvInputHardwareManager; 90 91 private final ContentResolver mContentResolver; 92 93 // A global lock. 94 private final Object mLock = new Object(); 95 96 // ID of the current user. 97 private int mCurrentUserId = UserHandle.USER_OWNER; 98 99 // A map from user id to UserState. 100 private final SparseArray<UserState> mUserStates = new SparseArray<UserState>(); 101 102 private final Handler mLogHandler; 103 104 public TvInputManagerService(Context context) { 105 super(context); 106 107 mContext = context; 108 mContentResolver = context.getContentResolver(); 109 mLogHandler = new LogHandler(IoThread.get().getLooper()); 110 111 mTvInputHardwareManager = new TvInputHardwareManager(context); 112 113 synchronized (mLock) { 114 mUserStates.put(mCurrentUserId, new UserState()); 115 } 116 } 117 118 @Override 119 public void onStart() { 120 publishBinderService(Context.TV_INPUT_SERVICE, new BinderService()); 121 } 122 123 @Override 124 public void onBootPhase(int phase) { 125 if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { 126 registerBroadcastReceivers(); 127 synchronized (mLock) { 128 buildTvInputListLocked(mCurrentUserId); 129 } 130 } 131 } 132 133 private void registerBroadcastReceivers() { 134 PackageMonitor monitor = new PackageMonitor() { 135 @Override 136 public void onSomePackagesChanged() { 137 synchronized (mLock) { 138 buildTvInputListLocked(mCurrentUserId); 139 } 140 } 141 142 @Override 143 public void onPackageRemoved(String packageName, int uid) { 144 synchronized (mLock) { 145 UserState userState = getUserStateLocked(mCurrentUserId); 146 if (!userState.packageList.contains(packageName)) { 147 // Not a TV input package. 148 return; 149 } 150 } 151 152 ArrayList<ContentProviderOperation> operations = 153 new ArrayList<ContentProviderOperation>(); 154 155 String selection = TvContract.BaseTvColumns.COLUMN_PACKAGE_NAME + "=?"; 156 String[] selectionArgs = { packageName }; 157 158 operations.add(ContentProviderOperation.newDelete(TvContract.Channels.CONTENT_URI) 159 .withSelection(selection, selectionArgs).build()); 160 operations.add(ContentProviderOperation.newDelete(TvContract.Programs.CONTENT_URI) 161 .withSelection(selection, selectionArgs).build()); 162 operations.add(ContentProviderOperation 163 .newDelete(TvContract.WatchedPrograms.CONTENT_URI) 164 .withSelection(selection, selectionArgs).build()); 165 166 ContentProviderResult[] results = null; 167 try { 168 results = mContentResolver.applyBatch(TvContract.AUTHORITY, operations); 169 } catch (RemoteException | OperationApplicationException e) { 170 Slog.e(TAG, "error in applyBatch" + e); 171 } 172 173 if (DEBUG) { 174 Slog.d(TAG, "onPackageRemoved(packageName=" + packageName + ", uid=" + uid 175 + ")"); 176 Slog.d(TAG, "results=" + results); 177 } 178 } 179 }; 180 monitor.register(mContext, null, UserHandle.ALL, true); 181 182 IntentFilter intentFilter = new IntentFilter(); 183 intentFilter.addAction(Intent.ACTION_USER_SWITCHED); 184 intentFilter.addAction(Intent.ACTION_USER_REMOVED); 185 mContext.registerReceiverAsUser(new BroadcastReceiver() { 186 @Override 187 public void onReceive(Context context, Intent intent) { 188 String action = intent.getAction(); 189 if (Intent.ACTION_USER_SWITCHED.equals(action)) { 190 switchUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 191 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 192 removeUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 193 } 194 } 195 }, UserHandle.ALL, intentFilter, null, null); 196 } 197 198 private void buildTvInputListLocked(int userId) { 199 UserState userState = getUserStateLocked(userId); 200 userState.inputMap.clear(); 201 userState.packageList.clear(); 202 203 if (DEBUG) Slog.d(TAG, "buildTvInputList"); 204 PackageManager pm = mContext.getPackageManager(); 205 List<ResolveInfo> services = pm.queryIntentServices( 206 new Intent(TvInputService.SERVICE_INTERFACE), 207 PackageManager.GET_SERVICES | PackageManager.GET_META_DATA); 208 for (ResolveInfo ri : services) { 209 ServiceInfo si = ri.serviceInfo; 210 if (!android.Manifest.permission.BIND_TV_INPUT.equals(si.permission)) { 211 Slog.w(TAG, "Skipping TV input " + si.name + ": it does not require the permission " 212 + android.Manifest.permission.BIND_TV_INPUT); 213 continue; 214 } 215 try { 216 TvInputInfo info = TvInputInfo.createTvInputInfo(mContext, ri); 217 if (DEBUG) Slog.d(TAG, "add " + info.getId()); 218 userState.inputMap.put(info.getId(), info); 219 userState.packageList.add(si.packageName); 220 221 // Reconnect the service if existing input is updated. 222 updateServiceConnectionLocked(info.getId(), userId); 223 } catch (IOException | XmlPullParserException e) { 224 Slog.e(TAG, "Can't load TV input " + si.name, e); 225 } 226 } 227 } 228 229 private void switchUser(int userId) { 230 synchronized (mLock) { 231 if (mCurrentUserId == userId) { 232 return; 233 } 234 // final int oldUserId = mCurrentUserId; 235 // TODO: Release services and sessions in the old user state, if needed. 236 mCurrentUserId = userId; 237 238 UserState userState = mUserStates.get(userId); 239 if (userState == null) { 240 userState = new UserState(); 241 } 242 mUserStates.put(userId, userState); 243 buildTvInputListLocked(userId); 244 } 245 } 246 247 private void removeUser(int userId) { 248 synchronized (mLock) { 249 UserState userState = mUserStates.get(userId); 250 if (userState == null) { 251 return; 252 } 253 // Release created sessions. 254 for (SessionState state : userState.sessionStateMap.values()) { 255 if (state.mSession != null) { 256 try { 257 state.mSession.release(); 258 } catch (RemoteException e) { 259 Slog.e(TAG, "error in release", e); 260 } 261 } 262 } 263 userState.sessionStateMap.clear(); 264 265 // Unregister all callbacks and unbind all services. 266 for (ServiceState serviceState : userState.serviceStateMap.values()) { 267 if (serviceState.mCallback != null) { 268 try { 269 serviceState.mService.unregisterCallback(serviceState.mCallback); 270 } catch (RemoteException e) { 271 Slog.e(TAG, "error in unregisterCallback", e); 272 } 273 } 274 serviceState.mClientTokens.clear(); 275 mContext.unbindService(serviceState.mConnection); 276 } 277 userState.serviceStateMap.clear(); 278 279 userState.clientStateMap.clear(); 280 281 mUserStates.remove(userId); 282 } 283 } 284 285 private UserState getUserStateLocked(int userId) { 286 UserState userState = mUserStates.get(userId); 287 if (userState == null) { 288 throw new IllegalStateException("User state not found for user ID " + userId); 289 } 290 return userState; 291 } 292 293 private ServiceState getServiceStateLocked(String inputId, int userId) { 294 UserState userState = getUserStateLocked(userId); 295 ServiceState serviceState = userState.serviceStateMap.get(inputId); 296 if (serviceState == null) { 297 throw new IllegalStateException("Service state not found for " + inputId + " (userId=" 298 + userId + ")"); 299 } 300 return serviceState; 301 } 302 303 private SessionState getSessionStateLocked(IBinder sessionToken, int callingUid, int userId) { 304 UserState userState = getUserStateLocked(userId); 305 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 306 if (sessionState == null) { 307 throw new IllegalArgumentException("Session state not found for token " + sessionToken); 308 } 309 // Only the application that requested this session or the system can access it. 310 if (callingUid != Process.SYSTEM_UID && callingUid != sessionState.mCallingUid) { 311 throw new SecurityException("Illegal access to the session with token " + sessionToken 312 + " from uid " + callingUid); 313 } 314 return sessionState; 315 } 316 317 private ITvInputSession getSessionLocked(IBinder sessionToken, int callingUid, int userId) { 318 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 319 ITvInputSession session = sessionState.mSession; 320 if (session == null) { 321 throw new IllegalStateException("Session not yet created for token " + sessionToken); 322 } 323 return session; 324 } 325 326 private int resolveCallingUserId(int callingPid, int callingUid, int requestedUserId, 327 String methodName) { 328 return ActivityManager.handleIncomingUser(callingPid, callingUid, requestedUserId, false, 329 false, methodName, null); 330 } 331 332 private void updateServiceConnectionLocked(String inputId, int userId) { 333 UserState userState = getUserStateLocked(userId); 334 ServiceState serviceState = userState.serviceStateMap.get(inputId); 335 if (serviceState == null) { 336 return; 337 } 338 if (serviceState.mReconnecting) { 339 if (!serviceState.mSessionTokens.isEmpty()) { 340 // wait until all the sessions are removed. 341 return; 342 } 343 serviceState.mReconnecting = false; 344 } 345 boolean isStateEmpty = serviceState.mClientTokens.isEmpty() 346 && serviceState.mSessionTokens.isEmpty(); 347 if (serviceState.mService == null && !isStateEmpty && userId == mCurrentUserId) { 348 // This means that the service is not yet connected but its state indicates that we 349 // have pending requests. Then, connect the service. 350 if (serviceState.mBound) { 351 // We have already bound to the service so we don't try to bind again until after we 352 // unbind later on. 353 return; 354 } 355 if (DEBUG) { 356 Slog.d(TAG, "bindServiceAsUser(inputId=" + inputId + ", userId=" + userId 357 + ")"); 358 } 359 360 Intent i = new Intent(TvInputService.SERVICE_INTERFACE).setComponent( 361 userState.inputMap.get(inputId).getComponent()); 362 // Binding service may fail if the service is updating. 363 // In that case, the connection will be revived in buildTvInputListLocked called by 364 // onSomePackagesChanged. 365 serviceState.mBound = mContext.bindServiceAsUser( 366 i, serviceState.mConnection, Context.BIND_AUTO_CREATE, new UserHandle(userId)); 367 } else if (serviceState.mService != null && isStateEmpty) { 368 // This means that the service is already connected but its state indicates that we have 369 // nothing to do with it. Then, disconnect the service. 370 if (DEBUG) { 371 Slog.d(TAG, "unbindService(inputId=" + inputId + ")"); 372 } 373 mContext.unbindService(serviceState.mConnection); 374 userState.serviceStateMap.remove(inputId); 375 } 376 } 377 378 private ClientState createClientStateLocked(IBinder clientToken, int userId) { 379 UserState userState = getUserStateLocked(userId); 380 ClientState clientState = new ClientState(clientToken, userId); 381 try { 382 clientToken.linkToDeath(clientState, 0); 383 } catch (RemoteException e) { 384 Slog.e(TAG, "Client is already died."); 385 } 386 userState.clientStateMap.put(clientToken, clientState); 387 return clientState; 388 } 389 390 private void createSessionInternalLocked(ITvInputService service, final IBinder sessionToken, 391 final int userId) { 392 final UserState userState = getUserStateLocked(userId); 393 final SessionState sessionState = userState.sessionStateMap.get(sessionToken); 394 if (DEBUG) { 395 Slog.d(TAG, "createSessionInternalLocked(inputId=" + sessionState.mInputId + ")"); 396 } 397 398 final InputChannel[] channels = InputChannel.openInputChannelPair(sessionToken.toString()); 399 400 // Set up a callback to send the session token. 401 ITvInputSessionCallback callback = new ITvInputSessionCallback.Stub() { 402 @Override 403 public void onSessionCreated(ITvInputSession session) { 404 if (DEBUG) { 405 Slog.d(TAG, "onSessionCreated(inputId=" + sessionState.mInputId + ")"); 406 } 407 synchronized (mLock) { 408 sessionState.mSession = session; 409 if (session == null) { 410 removeSessionStateLocked(sessionToken, userId); 411 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInputId, 412 null, null, sessionState.mSeq); 413 } else { 414 try { 415 session.asBinder().linkToDeath(sessionState, 0); 416 } catch (RemoteException e) { 417 Slog.e(TAG, "Session is already died."); 418 } 419 420 IBinder clientToken = sessionState.mClient.asBinder(); 421 ClientState clientState = userState.clientStateMap.get(clientToken); 422 if (clientState == null) { 423 clientState = createClientStateLocked(clientToken, userId); 424 } 425 clientState.mSessionTokens.add(sessionState.mSessionToken); 426 427 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInputId, 428 sessionToken, channels[0], sessionState.mSeq); 429 } 430 channels[0].dispose(); 431 } 432 } 433 434 @Override 435 public void onVideoStreamChanged(int width, int height, boolean interlaced) { 436 synchronized (mLock) { 437 if (DEBUG) { 438 Slog.d(TAG, "onVideoStreamChanged(" + width + ", " + height + ")"); 439 } 440 if (sessionState.mSession == null || sessionState.mClient == null) { 441 return; 442 } 443 try { 444 sessionState.mClient.onVideoStreamChanged(width, height, interlaced, 445 sessionState.mSeq); 446 } catch (RemoteException e) { 447 Slog.e(TAG, "error in onVideoStreamChanged"); 448 } 449 } 450 } 451 452 @Override 453 public void onAudioStreamChanged(int channelCount) { 454 synchronized (mLock) { 455 if (DEBUG) { 456 Slog.d(TAG, "onAudioStreamChanged(" + channelCount + ")"); 457 } 458 if (sessionState.mSession == null || sessionState.mClient == null) { 459 return; 460 } 461 try { 462 sessionState.mClient.onAudioStreamChanged(channelCount, sessionState.mSeq); 463 } catch (RemoteException e) { 464 Slog.e(TAG, "error in onAudioStreamChanged"); 465 } 466 } 467 } 468 469 @Override 470 public void onClosedCaptionStreamChanged(boolean hasClosedCaption) { 471 synchronized (mLock) { 472 if (DEBUG) { 473 Slog.d(TAG, "onClosedCaptionStreamChanged(" + hasClosedCaption + ")"); 474 } 475 if (sessionState.mSession == null || sessionState.mClient == null) { 476 return; 477 } 478 try { 479 sessionState.mClient.onClosedCaptionStreamChanged(hasClosedCaption, 480 sessionState.mSeq); 481 } catch (RemoteException e) { 482 Slog.e(TAG, "error in onClosedCaptionStreamChanged"); 483 } 484 } 485 } 486 487 @Override 488 public void onSessionEvent(String eventType, Bundle eventArgs) { 489 synchronized (mLock) { 490 if (DEBUG) { 491 Slog.d(TAG, "onEvent(what=" + eventType + ", data=" + eventArgs + ")"); 492 } 493 if (sessionState.mSession == null || sessionState.mClient == null) { 494 return; 495 } 496 try { 497 sessionState.mClient.onSessionEvent(eventType, eventArgs, 498 sessionState.mSeq); 499 } catch (RemoteException e) { 500 Slog.e(TAG, "error in onSessionEvent"); 501 } 502 } 503 } 504 }; 505 506 // Create a session. When failed, send a null token immediately. 507 try { 508 service.createSession(channels[1], callback); 509 } catch (RemoteException e) { 510 Slog.e(TAG, "error in createSession", e); 511 removeSessionStateLocked(sessionToken, userId); 512 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInputId, null, null, 513 sessionState.mSeq); 514 } 515 channels[1].dispose(); 516 } 517 518 private void sendSessionTokenToClientLocked(ITvInputClient client, String inputId, 519 IBinder sessionToken, InputChannel channel, int seq) { 520 try { 521 client.onSessionCreated(inputId, sessionToken, channel, seq); 522 } catch (RemoteException exception) { 523 Slog.e(TAG, "error in onSessionCreated", exception); 524 } 525 } 526 527 private void releaseSessionLocked(IBinder sessionToken, int callingUid, int userId) { 528 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 529 if (sessionState.mSession != null) { 530 try { 531 sessionState.mSession.release(); 532 } catch (RemoteException e) { 533 Slog.w(TAG, "session is already disapeared", e); 534 } 535 sessionState.mSession = null; 536 } 537 removeSessionStateLocked(sessionToken, userId); 538 } 539 540 private void removeSessionStateLocked(IBinder sessionToken, int userId) { 541 // Remove the session state from the global session state map of the current user. 542 UserState userState = getUserStateLocked(userId); 543 SessionState sessionState = userState.sessionStateMap.remove(sessionToken); 544 545 // Close the open log entry, if any. 546 if (sessionState.mLogUri != null) { 547 SomeArgs args = SomeArgs.obtain(); 548 args.arg1 = sessionState.mLogUri; 549 args.arg2 = System.currentTimeMillis(); 550 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args).sendToTarget(); 551 } 552 553 // Also remove the session token from the session token list of the current client and 554 // service. 555 ClientState clientState = userState.clientStateMap.get(sessionState.mClient.asBinder()); 556 if (clientState != null) { 557 clientState.mSessionTokens.remove(sessionToken); 558 if (clientState.isEmpty()) { 559 userState.clientStateMap.remove(sessionState.mClient.asBinder()); 560 } 561 } 562 563 ServiceState serviceState = userState.serviceStateMap.get(sessionState.mInputId); 564 if (serviceState != null) { 565 serviceState.mSessionTokens.remove(sessionToken); 566 } 567 updateServiceConnectionLocked(sessionState.mInputId, userId); 568 } 569 570 private void unregisterCallbackInternalLocked(IBinder clientToken, String inputId, 571 int userId) { 572 UserState userState = getUserStateLocked(userId); 573 ClientState clientState = userState.clientStateMap.get(clientToken); 574 if (clientState != null) { 575 clientState.mInputIds.remove(inputId); 576 if (clientState.isEmpty()) { 577 userState.clientStateMap.remove(clientToken); 578 } 579 } 580 581 ServiceState serviceState = userState.serviceStateMap.get(inputId); 582 if (serviceState == null) { 583 return; 584 } 585 586 // Remove this client from the client list and unregister the callback. 587 serviceState.mClientTokens.remove(clientToken); 588 if (!serviceState.mClientTokens.isEmpty()) { 589 // We have other clients who want to keep the callback. Do this later. 590 return; 591 } 592 if (serviceState.mService == null || serviceState.mCallback == null) { 593 return; 594 } 595 try { 596 serviceState.mService.unregisterCallback(serviceState.mCallback); 597 } catch (RemoteException e) { 598 Slog.e(TAG, "error in unregisterCallback", e); 599 } finally { 600 serviceState.mCallback = null; 601 updateServiceConnectionLocked(inputId, userId); 602 } 603 } 604 605 private void broadcastServiceAvailabilityChangedLocked(ServiceState serviceState) { 606 for (IBinder clientToken : serviceState.mClientTokens) { 607 try { 608 ITvInputClient.Stub.asInterface(clientToken).onAvailabilityChanged( 609 serviceState.mTvInputInfo.getId(), serviceState.mAvailable); 610 } catch (RemoteException e) { 611 Slog.e(TAG, "error in onAvailabilityChanged", e); 612 } 613 } 614 } 615 616 private final class BinderService extends ITvInputManager.Stub { 617 @Override 618 public List<TvInputInfo> getTvInputList(int userId) { 619 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 620 Binder.getCallingUid(), userId, "getTvInputList"); 621 final long identity = Binder.clearCallingIdentity(); 622 try { 623 synchronized (mLock) { 624 UserState userState = getUserStateLocked(resolvedUserId); 625 return new ArrayList<TvInputInfo>(userState.inputMap.values()); 626 } 627 } finally { 628 Binder.restoreCallingIdentity(identity); 629 } 630 } 631 632 @Override 633 public boolean getAvailability(final ITvInputClient client, final String inputId, 634 int userId) { 635 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 636 Binder.getCallingUid(), userId, "getAvailability"); 637 final long identity = Binder.clearCallingIdentity(); 638 try { 639 synchronized (mLock) { 640 UserState userState = getUserStateLocked(resolvedUserId); 641 ServiceState serviceState = userState.serviceStateMap.get(inputId); 642 if (serviceState != null) { 643 // We already know the status of this input service. Return the cached 644 // status. 645 return serviceState.mAvailable; 646 } 647 } 648 } finally { 649 Binder.restoreCallingIdentity(identity); 650 } 651 // STOPSHIP: Redesign the API around the availability change. For now, the service 652 // will be always available. 653 return true; 654 } 655 656 @Override 657 public void registerCallback(final ITvInputClient client, final String inputId, 658 int userId) { 659 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 660 Binder.getCallingUid(), userId, "registerCallback"); 661 final long identity = Binder.clearCallingIdentity(); 662 try { 663 synchronized (mLock) { 664 // Create a new service callback and add it to the callback map of the current 665 // service. 666 UserState userState = getUserStateLocked(resolvedUserId); 667 ServiceState serviceState = userState.serviceStateMap.get(inputId); 668 if (serviceState == null) { 669 serviceState = new ServiceState( 670 userState.inputMap.get(inputId), resolvedUserId); 671 userState.serviceStateMap.put(inputId, serviceState); 672 } 673 IBinder clientToken = client.asBinder(); 674 if (!serviceState.mClientTokens.contains(clientToken)) { 675 serviceState.mClientTokens.add(clientToken); 676 } 677 678 ClientState clientState = userState.clientStateMap.get(clientToken); 679 if (clientState == null) { 680 clientState = createClientStateLocked(clientToken, resolvedUserId); 681 } 682 if (!clientState.mInputIds.contains(inputId)) { 683 clientState.mInputIds.add(inputId); 684 } 685 686 if (serviceState.mService != null) { 687 if (serviceState.mCallback != null) { 688 // We already handled. 689 return; 690 } 691 serviceState.mCallback = new ServiceCallback(resolvedUserId); 692 try { 693 serviceState.mService.registerCallback(serviceState.mCallback); 694 } catch (RemoteException e) { 695 Slog.e(TAG, "error in registerCallback", e); 696 } 697 } else { 698 updateServiceConnectionLocked(inputId, resolvedUserId); 699 } 700 } 701 } finally { 702 Binder.restoreCallingIdentity(identity); 703 } 704 } 705 706 @Override 707 public void unregisterCallback(ITvInputClient client, String inputId, int userId) { 708 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 709 Binder.getCallingUid(), userId, "unregisterCallback"); 710 final long identity = Binder.clearCallingIdentity(); 711 try { 712 synchronized (mLock) { 713 unregisterCallbackInternalLocked(client.asBinder(), inputId, resolvedUserId); 714 } 715 } finally { 716 Binder.restoreCallingIdentity(identity); 717 } 718 } 719 720 @Override 721 public void createSession(final ITvInputClient client, final String inputId, 722 int seq, int userId) { 723 final int callingUid = Binder.getCallingUid(); 724 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 725 userId, "createSession"); 726 final long identity = Binder.clearCallingIdentity(); 727 try { 728 synchronized (mLock) { 729 UserState userState = getUserStateLocked(resolvedUserId); 730 ServiceState serviceState = userState.serviceStateMap.get(inputId); 731 if (serviceState == null) { 732 serviceState = new ServiceState( 733 userState.inputMap.get(inputId), resolvedUserId); 734 userState.serviceStateMap.put(inputId, serviceState); 735 } 736 // Send a null token immediately while reconnecting. 737 if (serviceState.mReconnecting == true) { 738 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 739 return; 740 } 741 742 // Create a new session token and a session state. 743 IBinder sessionToken = new Binder(); 744 SessionState sessionState = new SessionState(sessionToken, inputId, client, 745 seq, callingUid, resolvedUserId); 746 747 // Add them to the global session state map of the current user. 748 userState.sessionStateMap.put(sessionToken, sessionState); 749 750 // Also, add them to the session state map of the current service. 751 serviceState.mSessionTokens.add(sessionToken); 752 753 if (serviceState.mService != null) { 754 createSessionInternalLocked(serviceState.mService, sessionToken, 755 resolvedUserId); 756 } else { 757 updateServiceConnectionLocked(inputId, resolvedUserId); 758 } 759 } 760 } finally { 761 Binder.restoreCallingIdentity(identity); 762 } 763 } 764 765 @Override 766 public void releaseSession(IBinder sessionToken, int userId) { 767 final int callingUid = Binder.getCallingUid(); 768 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 769 userId, "releaseSession"); 770 final long identity = Binder.clearCallingIdentity(); 771 try { 772 synchronized (mLock) { 773 releaseSessionLocked(sessionToken, callingUid, resolvedUserId); 774 } 775 } finally { 776 Binder.restoreCallingIdentity(identity); 777 } 778 } 779 780 @Override 781 public void setSurface(IBinder sessionToken, Surface surface, int userId) { 782 final int callingUid = Binder.getCallingUid(); 783 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 784 userId, "setSurface"); 785 final long identity = Binder.clearCallingIdentity(); 786 try { 787 synchronized (mLock) { 788 try { 789 getSessionLocked(sessionToken, callingUid, resolvedUserId).setSurface( 790 surface); 791 } catch (RemoteException e) { 792 Slog.e(TAG, "error in setSurface", e); 793 } 794 } 795 } finally { 796 if (surface != null) { 797 // surface is not used in TvInputManagerService. 798 surface.release(); 799 } 800 Binder.restoreCallingIdentity(identity); 801 } 802 } 803 804 @Override 805 public void setVolume(IBinder sessionToken, float volume, int userId) { 806 final int callingUid = Binder.getCallingUid(); 807 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 808 userId, "setVolume"); 809 final long identity = Binder.clearCallingIdentity(); 810 try { 811 synchronized (mLock) { 812 try { 813 getSessionLocked(sessionToken, callingUid, resolvedUserId).setVolume( 814 volume); 815 } catch (RemoteException e) { 816 Slog.e(TAG, "error in setVolume", e); 817 } 818 } 819 } finally { 820 Binder.restoreCallingIdentity(identity); 821 } 822 } 823 824 @Override 825 public void tune(IBinder sessionToken, final Uri channelUri, int userId) { 826 final int callingUid = Binder.getCallingUid(); 827 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 828 userId, "tune"); 829 final long identity = Binder.clearCallingIdentity(); 830 try { 831 synchronized (mLock) { 832 try { 833 getSessionLocked(sessionToken, callingUid, resolvedUserId).tune(channelUri); 834 835 long currentTime = System.currentTimeMillis(); 836 long channelId = ContentUris.parseId(channelUri); 837 838 // Close the open log entry first, if any. 839 UserState userState = getUserStateLocked(resolvedUserId); 840 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 841 if (sessionState.mLogUri != null) { 842 SomeArgs args = SomeArgs.obtain(); 843 args.arg1 = sessionState.mLogUri; 844 args.arg2 = currentTime; 845 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args) 846 .sendToTarget(); 847 } 848 849 // Create a log entry and fill it later. 850 String packageName = userState.inputMap.get(sessionState.mInputId) 851 .getServiceInfo().packageName; 852 ContentValues values = new ContentValues(); 853 values.put(TvContract.WatchedPrograms.COLUMN_PACKAGE_NAME, packageName); 854 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 855 currentTime); 856 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 0); 857 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 858 859 sessionState.mLogUri = mContentResolver.insert( 860 TvContract.WatchedPrograms.CONTENT_URI, values); 861 SomeArgs args = SomeArgs.obtain(); 862 args.arg1 = sessionState.mLogUri; 863 args.arg2 = ContentUris.parseId(channelUri); 864 args.arg3 = currentTime; 865 mLogHandler.obtainMessage(LogHandler.MSG_OPEN_ENTRY, args).sendToTarget(); 866 } catch (RemoteException e) { 867 Slog.e(TAG, "error in tune", e); 868 return; 869 } 870 } 871 } finally { 872 Binder.restoreCallingIdentity(identity); 873 } 874 } 875 876 @Override 877 public void createOverlayView(IBinder sessionToken, IBinder windowToken, Rect frame, 878 int userId) { 879 final int callingUid = Binder.getCallingUid(); 880 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 881 userId, "createOverlayView"); 882 final long identity = Binder.clearCallingIdentity(); 883 try { 884 synchronized (mLock) { 885 try { 886 getSessionLocked(sessionToken, callingUid, resolvedUserId) 887 .createOverlayView(windowToken, frame); 888 } catch (RemoteException e) { 889 Slog.e(TAG, "error in createOverlayView", e); 890 } 891 } 892 } finally { 893 Binder.restoreCallingIdentity(identity); 894 } 895 } 896 897 @Override 898 public void relayoutOverlayView(IBinder sessionToken, Rect frame, int userId) { 899 final int callingUid = Binder.getCallingUid(); 900 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 901 userId, "relayoutOverlayView"); 902 final long identity = Binder.clearCallingIdentity(); 903 try { 904 synchronized (mLock) { 905 try { 906 getSessionLocked(sessionToken, callingUid, resolvedUserId) 907 .relayoutOverlayView(frame); 908 } catch (RemoteException e) { 909 Slog.e(TAG, "error in relayoutOverlayView", e); 910 } 911 } 912 } finally { 913 Binder.restoreCallingIdentity(identity); 914 } 915 } 916 917 @Override 918 public void removeOverlayView(IBinder sessionToken, int userId) { 919 final int callingUid = Binder.getCallingUid(); 920 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 921 userId, "removeOverlayView"); 922 final long identity = Binder.clearCallingIdentity(); 923 try { 924 synchronized (mLock) { 925 try { 926 getSessionLocked(sessionToken, callingUid, resolvedUserId) 927 .removeOverlayView(); 928 } catch (RemoteException e) { 929 Slog.e(TAG, "error in removeOverlayView", e); 930 } 931 } 932 } finally { 933 Binder.restoreCallingIdentity(identity); 934 } 935 } 936 937 @Override 938 public List<TvInputHardwareInfo> getHardwareList() throws RemoteException { 939 if (mContext.checkCallingPermission( 940 android.Manifest.permission.TV_INPUT_HARDWARE) 941 != PackageManager.PERMISSION_GRANTED) { 942 return null; 943 } 944 945 final long identity = Binder.clearCallingIdentity(); 946 try { 947 return mTvInputHardwareManager.getHardwareList(); 948 } finally { 949 Binder.restoreCallingIdentity(identity); 950 } 951 } 952 953 @Override 954 public ITvInputHardware acquireTvInputHardware(int deviceId, 955 ITvInputHardwareCallback callback, int userId) throws RemoteException { 956 if (mContext.checkCallingPermission( 957 android.Manifest.permission.TV_INPUT_HARDWARE) 958 != PackageManager.PERMISSION_GRANTED) { 959 return null; 960 } 961 962 final long identity = Binder.clearCallingIdentity(); 963 final int callingUid = Binder.getCallingUid(); 964 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 965 userId, "acquireTvInputHardware"); 966 try { 967 return mTvInputHardwareManager.acquireHardware( 968 deviceId, callback, callingUid, resolvedUserId); 969 } finally { 970 Binder.restoreCallingIdentity(identity); 971 } 972 } 973 974 @Override 975 public void releaseTvInputHardware(int deviceId, ITvInputHardware hardware, int userId) 976 throws RemoteException { 977 if (mContext.checkCallingPermission( 978 android.Manifest.permission.TV_INPUT_HARDWARE) 979 != PackageManager.PERMISSION_GRANTED) { 980 return; 981 } 982 983 final long identity = Binder.clearCallingIdentity(); 984 final int callingUid = Binder.getCallingUid(); 985 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 986 userId, "releaseTvInputHardware"); 987 try { 988 mTvInputHardwareManager.releaseHardware( 989 deviceId, hardware, callingUid, resolvedUserId); 990 } finally { 991 Binder.restoreCallingIdentity(identity); 992 } 993 } 994 995 @Override 996 protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) { 997 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 998 if (mContext.checkCallingOrSelfPermission( 999 android.Manifest.permission.DUMP) 1000 != PackageManager.PERMISSION_GRANTED) { 1001 pw.println("Permission Denial: can't dump TvInputManager " + 1002 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1003 Binder.getCallingUid()); 1004 return; 1005 } 1006 1007 synchronized (mLock) { 1008 pw.println("User Ids (Current user: " + mCurrentUserId + "):"); 1009 pw.increaseIndent(); 1010 for (int i = 0; i < mUserStates.size(); i++) { 1011 int userId = mUserStates.keyAt(i); 1012 pw.println(Integer.valueOf(userId)); 1013 } 1014 pw.decreaseIndent(); 1015 1016 for (int i = 0; i < mUserStates.size(); i++) { 1017 int userId = mUserStates.keyAt(i); 1018 UserState userState = getUserStateLocked(userId); 1019 1020 pw.println("UserState (" + userId + "):"); 1021 pw.increaseIndent(); 1022 1023 pw.println("inputMap: inputId -> TvInputInfo"); 1024 pw.increaseIndent(); 1025 for (TvInputInfo info : userState.inputMap.values()) { 1026 pw.println(info.toString()); 1027 } 1028 pw.decreaseIndent(); 1029 1030 pw.println("packageList:"); 1031 pw.increaseIndent(); 1032 for (String packageName : userState.packageList) { 1033 pw.println(packageName); 1034 } 1035 pw.decreaseIndent(); 1036 1037 pw.println("clientStateMap: ITvInputClient -> ClientState"); 1038 pw.increaseIndent(); 1039 for (Map.Entry<IBinder, ClientState> entry : 1040 userState.clientStateMap.entrySet()) { 1041 ClientState client = entry.getValue(); 1042 pw.println(entry.getKey() + ": " + client); 1043 1044 pw.increaseIndent(); 1045 1046 pw.println("mInputIds:"); 1047 pw.increaseIndent(); 1048 for (String inputId : client.mInputIds) { 1049 pw.println(inputId); 1050 } 1051 pw.decreaseIndent(); 1052 1053 pw.println("mSessionTokens:"); 1054 pw.increaseIndent(); 1055 for (IBinder token : client.mSessionTokens) { 1056 pw.println("" + token); 1057 } 1058 pw.decreaseIndent(); 1059 1060 pw.println("mClientTokens: " + client.mClientToken); 1061 pw.println("mUserId: " + client.mUserId); 1062 1063 pw.decreaseIndent(); 1064 } 1065 pw.decreaseIndent(); 1066 1067 pw.println("serviceStateMap: inputId -> ServiceState"); 1068 pw.increaseIndent(); 1069 for (Map.Entry<String, ServiceState> entry : 1070 userState.serviceStateMap.entrySet()) { 1071 ServiceState service = entry.getValue(); 1072 pw.println(entry.getKey() + ": " + service); 1073 1074 pw.increaseIndent(); 1075 1076 pw.println("mClientTokens:"); 1077 pw.increaseIndent(); 1078 for (IBinder token : service.mClientTokens) { 1079 pw.println("" + token); 1080 } 1081 pw.decreaseIndent(); 1082 1083 pw.println("mSessionTokens:"); 1084 pw.increaseIndent(); 1085 for (IBinder token : service.mSessionTokens) { 1086 pw.println("" + token); 1087 } 1088 pw.decreaseIndent(); 1089 1090 pw.println("mService: " + service.mService); 1091 pw.println("mCallback: " + service.mCallback); 1092 pw.println("mBound: " + service.mBound); 1093 pw.println("mAvailable: " + service.mAvailable); 1094 pw.println("mReconnecting: " + service.mReconnecting); 1095 1096 pw.decreaseIndent(); 1097 } 1098 pw.decreaseIndent(); 1099 1100 pw.println("sessionStateMap: ITvInputSession -> SessionState"); 1101 pw.increaseIndent(); 1102 for (Map.Entry<IBinder, SessionState> entry : 1103 userState.sessionStateMap.entrySet()) { 1104 SessionState session = entry.getValue(); 1105 pw.println(entry.getKey() + ": " + session); 1106 1107 pw.increaseIndent(); 1108 pw.println("mInputId: " + session.mInputId); 1109 pw.println("mClient: " + session.mClient); 1110 pw.println("mSeq: " + session.mSeq); 1111 pw.println("mCallingUid: " + session.mCallingUid); 1112 pw.println("mUserId: " + session.mUserId); 1113 pw.println("mSessionToken: " + session.mSessionToken); 1114 pw.println("mSession: " + session.mSession); 1115 pw.println("mLogUri: " + session.mLogUri); 1116 pw.decreaseIndent(); 1117 } 1118 pw.decreaseIndent(); 1119 1120 pw.decreaseIndent(); 1121 } 1122 } 1123 } 1124 } 1125 1126 private static final class UserState { 1127 // A mapping from the TV input id to its TvInputInfo. 1128 private final Map<String, TvInputInfo> inputMap = new HashMap<String,TvInputInfo>(); 1129 1130 // A list of all TV input packages. 1131 private final Set<String> packageList = new HashSet<String>(); 1132 1133 // A mapping from the token of a client to its state. 1134 private final Map<IBinder, ClientState> clientStateMap = 1135 new HashMap<IBinder, ClientState>(); 1136 1137 // A mapping from the name of a TV input service to its state. 1138 private final Map<String, ServiceState> serviceStateMap = 1139 new HashMap<String, ServiceState>(); 1140 1141 // A mapping from the token of a TV input session to its state. 1142 private final Map<IBinder, SessionState> sessionStateMap = 1143 new HashMap<IBinder, SessionState>(); 1144 } 1145 1146 private final class ClientState implements IBinder.DeathRecipient { 1147 private final List<String> mInputIds = new ArrayList<String>(); 1148 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1149 1150 private IBinder mClientToken; 1151 private final int mUserId; 1152 1153 ClientState(IBinder clientToken, int userId) { 1154 mClientToken = clientToken; 1155 mUserId = userId; 1156 } 1157 1158 public boolean isEmpty() { 1159 return mInputIds.isEmpty() && mSessionTokens.isEmpty(); 1160 } 1161 1162 @Override 1163 public void binderDied() { 1164 synchronized (mLock) { 1165 UserState userState = getUserStateLocked(mUserId); 1166 // DO NOT remove the client state of clientStateMap in this method. It will be 1167 // removed in releaseSessionLocked() or unregisterCallbackInternalLocked(). 1168 ClientState clientState = userState.clientStateMap.get(mClientToken); 1169 if (clientState != null) { 1170 while (clientState.mSessionTokens.size() > 0) { 1171 releaseSessionLocked( 1172 clientState.mSessionTokens.get(0), Process.SYSTEM_UID, mUserId); 1173 } 1174 while (clientState.mInputIds.size() > 0) { 1175 unregisterCallbackInternalLocked( 1176 mClientToken, clientState.mInputIds.get(0), mUserId); 1177 } 1178 } 1179 mClientToken = null; 1180 } 1181 } 1182 } 1183 1184 private final class ServiceState { 1185 private final List<IBinder> mClientTokens = new ArrayList<IBinder>(); 1186 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1187 private final ServiceConnection mConnection; 1188 private final TvInputInfo mTvInputInfo; 1189 1190 private ITvInputService mService; 1191 private ServiceCallback mCallback; 1192 private boolean mBound; 1193 private boolean mAvailable; 1194 private boolean mReconnecting; 1195 1196 private ServiceState(TvInputInfo inputInfo, int userId) { 1197 mTvInputInfo = inputInfo; 1198 mConnection = new InputServiceConnection(inputInfo, userId); 1199 } 1200 } 1201 1202 private final class SessionState implements IBinder.DeathRecipient { 1203 private final String mInputId; 1204 private final ITvInputClient mClient; 1205 private final int mSeq; 1206 private final int mCallingUid; 1207 private final int mUserId; 1208 private final IBinder mSessionToken; 1209 private ITvInputSession mSession; 1210 private Uri mLogUri; 1211 1212 private SessionState(IBinder sessionToken, String inputId, ITvInputClient client, int seq, 1213 int callingUid, int userId) { 1214 mSessionToken = sessionToken; 1215 mInputId = inputId; 1216 mClient = client; 1217 mSeq = seq; 1218 mCallingUid = callingUid; 1219 mUserId = userId; 1220 } 1221 1222 @Override 1223 public void binderDied() { 1224 synchronized (mLock) { 1225 mSession = null; 1226 if (mClient != null) { 1227 try { 1228 mClient.onSessionReleased(mSeq); 1229 } catch(RemoteException e) { 1230 Slog.e(TAG, "error in onSessionReleased", e); 1231 } 1232 } 1233 removeSessionStateLocked(mSessionToken, mUserId); 1234 } 1235 } 1236 } 1237 1238 private final class InputServiceConnection implements ServiceConnection { 1239 private final TvInputInfo mTvInputInfo; 1240 private final int mUserId; 1241 1242 private InputServiceConnection(TvInputInfo inputInfo, int userId) { 1243 mUserId = userId; 1244 mTvInputInfo = inputInfo; 1245 } 1246 1247 @Override 1248 public void onServiceConnected(ComponentName name, IBinder service) { 1249 if (DEBUG) { 1250 Slog.d(TAG, "onServiceConnected(inputId=" + mTvInputInfo.getId() + ")"); 1251 } 1252 synchronized (mLock) { 1253 ServiceState serviceState = getServiceStateLocked(mTvInputInfo.getId(), mUserId); 1254 serviceState.mService = ITvInputService.Stub.asInterface(service); 1255 1256 // Register a callback, if we need to. 1257 if (!serviceState.mClientTokens.isEmpty() && serviceState.mCallback == null) { 1258 serviceState.mCallback = new ServiceCallback(mUserId); 1259 try { 1260 serviceState.mService.registerCallback(serviceState.mCallback); 1261 } catch (RemoteException e) { 1262 Slog.e(TAG, "error in registerCallback", e); 1263 } 1264 } 1265 1266 // And create sessions, if any. 1267 for (IBinder sessionToken : serviceState.mSessionTokens) { 1268 createSessionInternalLocked(serviceState.mService, sessionToken, mUserId); 1269 } 1270 } 1271 } 1272 1273 @Override 1274 public void onServiceDisconnected(ComponentName name) { 1275 if (DEBUG) { 1276 Slog.d(TAG, "onServiceDisconnected(inputId=" + mTvInputInfo.getId() + ")"); 1277 } 1278 if (!mTvInputInfo.getComponent().equals(name)) { 1279 throw new IllegalArgumentException("Mismatched ComponentName: " 1280 + mTvInputInfo.getComponent() + " (expected), " + name + " (actual)."); 1281 } 1282 synchronized (mLock) { 1283 UserState userState = getUserStateLocked(mUserId); 1284 ServiceState serviceState = userState.serviceStateMap.get(mTvInputInfo.getId()); 1285 if (serviceState != null) { 1286 serviceState.mReconnecting = true; 1287 serviceState.mBound = false; 1288 serviceState.mService = null; 1289 serviceState.mCallback = null; 1290 1291 // Send null tokens for not finishing create session events. 1292 for (IBinder sessionToken : serviceState.mSessionTokens) { 1293 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1294 if (sessionState.mSession == null) { 1295 removeSessionStateLocked(sessionToken, sessionState.mUserId); 1296 sendSessionTokenToClientLocked(sessionState.mClient, 1297 sessionState.mInputId, null, null, sessionState.mSeq); 1298 } 1299 } 1300 1301 if (serviceState.mAvailable) { 1302 serviceState.mAvailable = false; 1303 broadcastServiceAvailabilityChangedLocked(serviceState); 1304 } 1305 updateServiceConnectionLocked(mTvInputInfo.getId(), mUserId); 1306 } 1307 } 1308 } 1309 } 1310 1311 private final class ServiceCallback extends ITvInputServiceCallback.Stub { 1312 private final int mUserId; 1313 1314 ServiceCallback(int userId) { 1315 mUserId = userId; 1316 } 1317 1318 @Override 1319 public void onAvailabilityChanged(String inputId, boolean isAvailable) { 1320 if (DEBUG) { 1321 Slog.d(TAG, "onAvailabilityChanged(inputId=" + inputId + ", isAvailable=" 1322 + isAvailable + ")"); 1323 } 1324 synchronized (mLock) { 1325 ServiceState serviceState = getServiceStateLocked(inputId, mUserId); 1326 if (serviceState.mAvailable != isAvailable) { 1327 serviceState.mAvailable = isAvailable; 1328 broadcastServiceAvailabilityChangedLocked(serviceState); 1329 } 1330 } 1331 } 1332 } 1333 1334 private final class LogHandler extends Handler { 1335 private static final int MSG_OPEN_ENTRY = 1; 1336 private static final int MSG_UPDATE_ENTRY = 2; 1337 private static final int MSG_CLOSE_ENTRY = 3; 1338 1339 public LogHandler(Looper looper) { 1340 super(looper); 1341 } 1342 1343 @Override 1344 public void handleMessage(Message msg) { 1345 switch (msg.what) { 1346 case MSG_OPEN_ENTRY: { 1347 SomeArgs args = (SomeArgs) msg.obj; 1348 Uri uri = (Uri) args.arg1; 1349 long channelId = (long) args.arg2; 1350 long time = (long) args.arg3; 1351 onOpenEntry(uri, channelId, time); 1352 args.recycle(); 1353 return; 1354 } 1355 case MSG_UPDATE_ENTRY: { 1356 SomeArgs args = (SomeArgs) msg.obj; 1357 Uri uri = (Uri) args.arg1; 1358 long channelId = (long) args.arg2; 1359 long time = (long) args.arg3; 1360 onUpdateEntry(uri, channelId, time); 1361 args.recycle(); 1362 return; 1363 } 1364 case MSG_CLOSE_ENTRY: { 1365 SomeArgs args = (SomeArgs) msg.obj; 1366 Uri uri = (Uri) args.arg1; 1367 long time = (long) args.arg2; 1368 onCloseEntry(uri, time); 1369 args.recycle(); 1370 return; 1371 } 1372 default: { 1373 Slog.w(TAG, "Unhandled message code: " + msg.what); 1374 return; 1375 } 1376 } 1377 } 1378 1379 private void onOpenEntry(Uri uri, long channelId, long watchStarttime) { 1380 String[] projection = { 1381 TvContract.Programs.COLUMN_TITLE, 1382 TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS, 1383 TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS, 1384 TvContract.Programs.COLUMN_SHORT_DESCRIPTION 1385 }; 1386 String selection = TvContract.Programs.COLUMN_CHANNEL_ID + "=? AND " 1387 + TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + "<=? AND " 1388 + TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS + ">?"; 1389 String[] selectionArgs = { 1390 String.valueOf(channelId), 1391 String.valueOf(watchStarttime), 1392 String.valueOf(watchStarttime) 1393 }; 1394 String sortOrder = TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + " ASC"; 1395 Cursor cursor = null; 1396 try { 1397 cursor = mContentResolver.query(TvContract.Programs.CONTENT_URI, projection, 1398 selection, selectionArgs, sortOrder); 1399 if (cursor != null && cursor.moveToNext()) { 1400 ContentValues values = new ContentValues(); 1401 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, cursor.getString(0)); 1402 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1403 cursor.getLong(1)); 1404 long endTime = cursor.getLong(2); 1405 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1406 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, cursor.getString(3)); 1407 mContentResolver.update(uri, values, null, null); 1408 1409 // Schedule an update when the current program ends. 1410 SomeArgs args = SomeArgs.obtain(); 1411 args.arg1 = uri; 1412 args.arg2 = channelId; 1413 args.arg3 = endTime; 1414 Message msg = obtainMessage(LogHandler.MSG_UPDATE_ENTRY, args); 1415 sendMessageDelayed(msg, endTime - System.currentTimeMillis()); 1416 } 1417 } finally { 1418 if (cursor != null) { 1419 cursor.close(); 1420 } 1421 } 1422 } 1423 1424 private void onUpdateEntry(Uri uri, long channelId, long time) { 1425 String[] projection = { 1426 TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1427 TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 1428 TvContract.WatchedPrograms.COLUMN_TITLE, 1429 TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1430 TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, 1431 TvContract.WatchedPrograms.COLUMN_DESCRIPTION 1432 }; 1433 Cursor cursor = null; 1434 try { 1435 cursor = mContentResolver.query(uri, projection, null, null, null); 1436 if (cursor != null && cursor.moveToNext()) { 1437 long watchStartTime = cursor.getLong(0); 1438 long watchEndTime = cursor.getLong(1); 1439 String title = cursor.getString(2); 1440 long startTime = cursor.getLong(3); 1441 long endTime = cursor.getLong(4); 1442 String description = cursor.getString(5); 1443 1444 // Do nothing if the current log entry is already closed. 1445 if (watchEndTime > 0) { 1446 return; 1447 } 1448 1449 // The current program has just ended. Create a (complete) log entry off the 1450 // current entry. 1451 ContentValues values = new ContentValues(); 1452 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1453 watchStartTime); 1454 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, time); 1455 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 1456 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, title); 1457 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, startTime); 1458 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1459 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, description); 1460 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 1461 } 1462 } finally { 1463 if (cursor != null) { 1464 cursor.close(); 1465 } 1466 } 1467 // Re-open the current log entry with the next program information. 1468 onOpenEntry(uri, channelId, time); 1469 } 1470 1471 private void onCloseEntry(Uri uri, long watchEndTime) { 1472 ContentValues values = new ContentValues(); 1473 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, watchEndTime); 1474 mContentResolver.update(uri, values, null, null); 1475 } 1476 } 1477} 1478