TvInputManagerService.java revision 9b08edff236fc68d836eccfaa1a5f028dc390cec
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.media.tv.TvTrackInfo; 50import android.net.Uri; 51import android.os.Binder; 52import android.os.Bundle; 53import android.os.Handler; 54import android.os.IBinder; 55import android.os.Looper; 56import android.os.Message; 57import android.os.Process; 58import android.os.RemoteException; 59import android.os.UserHandle; 60import android.util.Slog; 61import android.util.SparseArray; 62import android.view.InputChannel; 63import android.view.Surface; 64 65import com.android.internal.content.PackageMonitor; 66import com.android.internal.os.SomeArgs; 67import com.android.internal.util.IndentingPrintWriter; 68import com.android.server.IoThread; 69import com.android.server.SystemService; 70 71import org.xmlpull.v1.XmlPullParserException; 72 73import java.io.FileDescriptor; 74import java.io.IOException; 75import java.io.PrintWriter; 76import java.util.ArrayList; 77import java.util.HashMap; 78import java.util.HashSet; 79import java.util.List; 80import java.util.Map; 81import java.util.Set; 82 83/** This class provides a system service that manages television inputs. */ 84public final class TvInputManagerService extends SystemService { 85 // STOPSHIP: Turn debugging off. 86 private static final boolean DEBUG = true; 87 private static final String TAG = "TvInputManagerService"; 88 89 private final Context mContext; 90 private final TvInputHardwareManager mTvInputHardwareManager; 91 92 private final ContentResolver mContentResolver; 93 94 // A global lock. 95 private final Object mLock = new Object(); 96 97 // ID of the current user. 98 private int mCurrentUserId = UserHandle.USER_OWNER; 99 100 // A map from user id to UserState. 101 private final SparseArray<UserState> mUserStates = new SparseArray<UserState>(); 102 103 private final Handler mLogHandler; 104 105 public TvInputManagerService(Context context) { 106 super(context); 107 108 mContext = context; 109 mContentResolver = context.getContentResolver(); 110 mLogHandler = new LogHandler(IoThread.get().getLooper()); 111 112 mTvInputHardwareManager = new TvInputHardwareManager(context); 113 114 synchronized (mLock) { 115 mUserStates.put(mCurrentUserId, new UserState()); 116 } 117 } 118 119 @Override 120 public void onStart() { 121 publishBinderService(Context.TV_INPUT_SERVICE, new BinderService()); 122 } 123 124 @Override 125 public void onBootPhase(int phase) { 126 if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { 127 registerBroadcastReceivers(); 128 synchronized (mLock) { 129 buildTvInputListLocked(mCurrentUserId); 130 } 131 } 132 } 133 134 private void registerBroadcastReceivers() { 135 PackageMonitor monitor = new PackageMonitor() { 136 @Override 137 public void onSomePackagesChanged() { 138 synchronized (mLock) { 139 buildTvInputListLocked(mCurrentUserId); 140 } 141 } 142 143 @Override 144 public void onPackageRemoved(String packageName, int uid) { 145 synchronized (mLock) { 146 UserState userState = getUserStateLocked(mCurrentUserId); 147 if (!userState.packageList.contains(packageName)) { 148 // Not a TV input package. 149 return; 150 } 151 } 152 153 ArrayList<ContentProviderOperation> operations = 154 new ArrayList<ContentProviderOperation>(); 155 156 String selection = TvContract.BaseTvColumns.COLUMN_PACKAGE_NAME + "=?"; 157 String[] selectionArgs = { packageName }; 158 159 operations.add(ContentProviderOperation.newDelete(TvContract.Channels.CONTENT_URI) 160 .withSelection(selection, selectionArgs).build()); 161 operations.add(ContentProviderOperation.newDelete(TvContract.Programs.CONTENT_URI) 162 .withSelection(selection, selectionArgs).build()); 163 operations.add(ContentProviderOperation 164 .newDelete(TvContract.WatchedPrograms.CONTENT_URI) 165 .withSelection(selection, selectionArgs).build()); 166 167 ContentProviderResult[] results = null; 168 try { 169 results = mContentResolver.applyBatch(TvContract.AUTHORITY, operations); 170 } catch (RemoteException | OperationApplicationException e) { 171 Slog.e(TAG, "error in applyBatch" + e); 172 } 173 174 if (DEBUG) { 175 Slog.d(TAG, "onPackageRemoved(packageName=" + packageName + ", uid=" + uid 176 + ")"); 177 Slog.d(TAG, "results=" + results); 178 } 179 } 180 }; 181 monitor.register(mContext, null, UserHandle.ALL, true); 182 183 IntentFilter intentFilter = new IntentFilter(); 184 intentFilter.addAction(Intent.ACTION_USER_SWITCHED); 185 intentFilter.addAction(Intent.ACTION_USER_REMOVED); 186 mContext.registerReceiverAsUser(new BroadcastReceiver() { 187 @Override 188 public void onReceive(Context context, Intent intent) { 189 String action = intent.getAction(); 190 if (Intent.ACTION_USER_SWITCHED.equals(action)) { 191 switchUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 192 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 193 removeUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 194 } 195 } 196 }, UserHandle.ALL, intentFilter, null, null); 197 } 198 199 private void buildTvInputListLocked(int userId) { 200 UserState userState = getUserStateLocked(userId); 201 userState.inputMap.clear(); 202 userState.packageList.clear(); 203 204 if (DEBUG) Slog.d(TAG, "buildTvInputList"); 205 PackageManager pm = mContext.getPackageManager(); 206 List<ResolveInfo> services = pm.queryIntentServices( 207 new Intent(TvInputService.SERVICE_INTERFACE), 208 PackageManager.GET_SERVICES | PackageManager.GET_META_DATA); 209 for (ResolveInfo ri : services) { 210 ServiceInfo si = ri.serviceInfo; 211 if (!android.Manifest.permission.BIND_TV_INPUT.equals(si.permission)) { 212 Slog.w(TAG, "Skipping TV input " + si.name + ": it does not require the permission " 213 + android.Manifest.permission.BIND_TV_INPUT); 214 continue; 215 } 216 try { 217 TvInputInfo info = TvInputInfo.createTvInputInfo(mContext, ri); 218 if (DEBUG) Slog.d(TAG, "add " + info.getId()); 219 userState.inputMap.put(info.getId(), info); 220 userState.packageList.add(si.packageName); 221 222 // Reconnect the service if existing input is updated. 223 updateServiceConnectionLocked(info.getId(), userId); 224 } catch (IOException | XmlPullParserException e) { 225 Slog.e(TAG, "Can't load TV input " + si.name, e); 226 } 227 } 228 } 229 230 private void switchUser(int userId) { 231 synchronized (mLock) { 232 if (mCurrentUserId == userId) { 233 return; 234 } 235 // final int oldUserId = mCurrentUserId; 236 // TODO: Release services and sessions in the old user state, if needed. 237 mCurrentUserId = userId; 238 239 UserState userState = mUserStates.get(userId); 240 if (userState == null) { 241 userState = new UserState(); 242 } 243 mUserStates.put(userId, userState); 244 buildTvInputListLocked(userId); 245 } 246 } 247 248 private void removeUser(int userId) { 249 synchronized (mLock) { 250 UserState userState = mUserStates.get(userId); 251 if (userState == null) { 252 return; 253 } 254 // Release created sessions. 255 for (SessionState state : userState.sessionStateMap.values()) { 256 if (state.mSession != null) { 257 try { 258 state.mSession.release(); 259 } catch (RemoteException e) { 260 Slog.e(TAG, "error in release", e); 261 } 262 } 263 } 264 userState.sessionStateMap.clear(); 265 266 // Unregister all callbacks and unbind all services. 267 for (ServiceState serviceState : userState.serviceStateMap.values()) { 268 if (serviceState.mCallback != null) { 269 try { 270 serviceState.mService.unregisterCallback(serviceState.mCallback); 271 } catch (RemoteException e) { 272 Slog.e(TAG, "error in unregisterCallback", e); 273 } 274 } 275 serviceState.mClientTokens.clear(); 276 mContext.unbindService(serviceState.mConnection); 277 } 278 userState.serviceStateMap.clear(); 279 280 userState.clientStateMap.clear(); 281 282 mUserStates.remove(userId); 283 } 284 } 285 286 private UserState getUserStateLocked(int userId) { 287 UserState userState = mUserStates.get(userId); 288 if (userState == null) { 289 throw new IllegalStateException("User state not found for user ID " + userId); 290 } 291 return userState; 292 } 293 294 private ServiceState getServiceStateLocked(String inputId, int userId) { 295 UserState userState = getUserStateLocked(userId); 296 ServiceState serviceState = userState.serviceStateMap.get(inputId); 297 if (serviceState == null) { 298 throw new IllegalStateException("Service state not found for " + inputId + " (userId=" 299 + userId + ")"); 300 } 301 return serviceState; 302 } 303 304 private SessionState getSessionStateLocked(IBinder sessionToken, int callingUid, int userId) { 305 UserState userState = getUserStateLocked(userId); 306 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 307 if (sessionState == null) { 308 throw new IllegalArgumentException("Session state not found for token " + sessionToken); 309 } 310 // Only the application that requested this session or the system can access it. 311 if (callingUid != Process.SYSTEM_UID && callingUid != sessionState.mCallingUid) { 312 throw new SecurityException("Illegal access to the session with token " + sessionToken 313 + " from uid " + callingUid); 314 } 315 return sessionState; 316 } 317 318 private ITvInputSession getSessionLocked(IBinder sessionToken, int callingUid, int userId) { 319 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 320 ITvInputSession session = sessionState.mSession; 321 if (session == null) { 322 throw new IllegalStateException("Session not yet created for token " + sessionToken); 323 } 324 return session; 325 } 326 327 private int resolveCallingUserId(int callingPid, int callingUid, int requestedUserId, 328 String methodName) { 329 return ActivityManager.handleIncomingUser(callingPid, callingUid, requestedUserId, false, 330 false, methodName, null); 331 } 332 333 private void updateServiceConnectionLocked(String inputId, int userId) { 334 UserState userState = getUserStateLocked(userId); 335 ServiceState serviceState = userState.serviceStateMap.get(inputId); 336 if (serviceState == null) { 337 return; 338 } 339 if (serviceState.mReconnecting) { 340 if (!serviceState.mSessionTokens.isEmpty()) { 341 // wait until all the sessions are removed. 342 return; 343 } 344 serviceState.mReconnecting = false; 345 } 346 boolean isStateEmpty = serviceState.mClientTokens.isEmpty() 347 && serviceState.mSessionTokens.isEmpty(); 348 if (serviceState.mService == null && !isStateEmpty && userId == mCurrentUserId) { 349 // This means that the service is not yet connected but its state indicates that we 350 // have pending requests. Then, connect the service. 351 if (serviceState.mBound) { 352 // We have already bound to the service so we don't try to bind again until after we 353 // unbind later on. 354 return; 355 } 356 if (DEBUG) { 357 Slog.d(TAG, "bindServiceAsUser(inputId=" + inputId + ", userId=" + userId 358 + ")"); 359 } 360 361 Intent i = new Intent(TvInputService.SERVICE_INTERFACE).setComponent( 362 userState.inputMap.get(inputId).getComponent()); 363 // Binding service may fail if the service is updating. 364 // In that case, the connection will be revived in buildTvInputListLocked called by 365 // onSomePackagesChanged. 366 serviceState.mBound = mContext.bindServiceAsUser( 367 i, serviceState.mConnection, Context.BIND_AUTO_CREATE, new UserHandle(userId)); 368 } else if (serviceState.mService != null && isStateEmpty) { 369 // This means that the service is already connected but its state indicates that we have 370 // nothing to do with it. Then, disconnect the service. 371 if (DEBUG) { 372 Slog.d(TAG, "unbindService(inputId=" + inputId + ")"); 373 } 374 mContext.unbindService(serviceState.mConnection); 375 userState.serviceStateMap.remove(inputId); 376 } 377 } 378 379 private ClientState createClientStateLocked(IBinder clientToken, int userId) { 380 UserState userState = getUserStateLocked(userId); 381 ClientState clientState = new ClientState(clientToken, userId); 382 try { 383 clientToken.linkToDeath(clientState, 0); 384 } catch (RemoteException e) { 385 Slog.e(TAG, "Client is already died."); 386 } 387 userState.clientStateMap.put(clientToken, clientState); 388 return clientState; 389 } 390 391 private void createSessionInternalLocked(ITvInputService service, final IBinder sessionToken, 392 final int userId) { 393 final UserState userState = getUserStateLocked(userId); 394 final SessionState sessionState = userState.sessionStateMap.get(sessionToken); 395 if (DEBUG) { 396 Slog.d(TAG, "createSessionInternalLocked(inputId=" + sessionState.mInputId + ")"); 397 } 398 399 final InputChannel[] channels = InputChannel.openInputChannelPair(sessionToken.toString()); 400 401 // Set up a callback to send the session token. 402 ITvInputSessionCallback callback = new ITvInputSessionCallback.Stub() { 403 @Override 404 public void onSessionCreated(ITvInputSession session) { 405 if (DEBUG) { 406 Slog.d(TAG, "onSessionCreated(inputId=" + sessionState.mInputId + ")"); 407 } 408 synchronized (mLock) { 409 sessionState.mSession = session; 410 if (session == null) { 411 removeSessionStateLocked(sessionToken, userId); 412 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInputId, 413 null, null, sessionState.mSeq); 414 } else { 415 try { 416 session.asBinder().linkToDeath(sessionState, 0); 417 } catch (RemoteException e) { 418 Slog.e(TAG, "Session is already died."); 419 } 420 421 IBinder clientToken = sessionState.mClient.asBinder(); 422 ClientState clientState = userState.clientStateMap.get(clientToken); 423 if (clientState == null) { 424 clientState = createClientStateLocked(clientToken, userId); 425 } 426 clientState.mSessionTokens.add(sessionState.mSessionToken); 427 428 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInputId, 429 sessionToken, channels[0], sessionState.mSeq); 430 } 431 channels[0].dispose(); 432 } 433 } 434 435 @Override 436 public void onChannelRetuned(Uri channelUri) { 437 synchronized (mLock) { 438 if (DEBUG) { 439 Slog.d(TAG, "onChannelRetuned(" + channelUri + ")"); 440 } 441 if (sessionState.mSession == null || sessionState.mClient == null) { 442 return; 443 } 444 try { 445 // TODO: Consider adding this channel change in the watch log. When we do 446 // that, how we can protect the watch log from malicious tv inputs should 447 // be addressed. e.g. add a field which represents where the channel change 448 // originated from. 449 sessionState.mClient.onChannelRetuned(channelUri, sessionState.mSeq); 450 } catch (RemoteException e) { 451 Slog.e(TAG, "error in onChannelRetuned"); 452 } 453 } 454 } 455 456 @Override 457 public void onTrackInfoChanged(List<TvTrackInfo> tracks) { 458 synchronized (mLock) { 459 if (DEBUG) { 460 Slog.d(TAG, "onTrackInfoChanged(" + tracks + ")"); 461 } 462 if (sessionState.mSession == null || sessionState.mClient == null) { 463 return; 464 } 465 try { 466 sessionState.mClient.onTrackInfoChanged(tracks, 467 sessionState.mSeq); 468 } catch (RemoteException e) { 469 Slog.e(TAG, "error in onTrackInfoChanged"); 470 } 471 } 472 } 473 474 @Override 475 public void onVideoAvailable() { 476 synchronized (mLock) { 477 if (DEBUG) { 478 Slog.d(TAG, "onVideoAvailable()"); 479 } 480 if (sessionState.mSession == null || sessionState.mClient == null) { 481 return; 482 } 483 try { 484 sessionState.mClient.onVideoAvailable(sessionState.mSeq); 485 } catch (RemoteException e) { 486 Slog.e(TAG, "error in onVideoAvailable"); 487 } 488 } 489 } 490 491 @Override 492 public void onVideoUnavailable(int reason) { 493 synchronized (mLock) { 494 if (DEBUG) { 495 Slog.d(TAG, "onVideoUnavailable(" + reason + ")"); 496 } 497 if (sessionState.mSession == null || sessionState.mClient == null) { 498 return; 499 } 500 try { 501 sessionState.mClient.onVideoUnavailable(reason, sessionState.mSeq); 502 } catch (RemoteException e) { 503 Slog.e(TAG, "error in onVideoUnavailable"); 504 } 505 } 506 } 507 508 @Override 509 public void onSessionEvent(String eventType, Bundle eventArgs) { 510 synchronized (mLock) { 511 if (DEBUG) { 512 Slog.d(TAG, "onEvent(what=" + eventType + ", data=" + eventArgs + ")"); 513 } 514 if (sessionState.mSession == null || sessionState.mClient == null) { 515 return; 516 } 517 try { 518 sessionState.mClient.onSessionEvent(eventType, eventArgs, 519 sessionState.mSeq); 520 } catch (RemoteException e) { 521 Slog.e(TAG, "error in onSessionEvent"); 522 } 523 } 524 } 525 }; 526 527 // Create a session. When failed, send a null token immediately. 528 try { 529 service.createSession(channels[1], callback); 530 } catch (RemoteException e) { 531 Slog.e(TAG, "error in createSession", e); 532 removeSessionStateLocked(sessionToken, userId); 533 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInputId, null, null, 534 sessionState.mSeq); 535 } 536 channels[1].dispose(); 537 } 538 539 private void sendSessionTokenToClientLocked(ITvInputClient client, String inputId, 540 IBinder sessionToken, InputChannel channel, int seq) { 541 try { 542 client.onSessionCreated(inputId, sessionToken, channel, seq); 543 } catch (RemoteException exception) { 544 Slog.e(TAG, "error in onSessionCreated", exception); 545 } 546 } 547 548 private void releaseSessionLocked(IBinder sessionToken, int callingUid, int userId) { 549 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 550 if (sessionState.mSession != null) { 551 try { 552 sessionState.mSession.release(); 553 } catch (RemoteException e) { 554 Slog.w(TAG, "session is already disapeared", e); 555 } 556 sessionState.mSession = null; 557 } 558 removeSessionStateLocked(sessionToken, userId); 559 } 560 561 private void removeSessionStateLocked(IBinder sessionToken, int userId) { 562 // Remove the session state from the global session state map of the current user. 563 UserState userState = getUserStateLocked(userId); 564 SessionState sessionState = userState.sessionStateMap.remove(sessionToken); 565 566 // Close the open log entry, if any. 567 if (sessionState.mLogUri != null) { 568 SomeArgs args = SomeArgs.obtain(); 569 args.arg1 = sessionState.mLogUri; 570 args.arg2 = System.currentTimeMillis(); 571 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args).sendToTarget(); 572 } 573 574 // Also remove the session token from the session token list of the current client and 575 // service. 576 ClientState clientState = userState.clientStateMap.get(sessionState.mClient.asBinder()); 577 if (clientState != null) { 578 clientState.mSessionTokens.remove(sessionToken); 579 if (clientState.isEmpty()) { 580 userState.clientStateMap.remove(sessionState.mClient.asBinder()); 581 } 582 } 583 584 ServiceState serviceState = userState.serviceStateMap.get(sessionState.mInputId); 585 if (serviceState != null) { 586 serviceState.mSessionTokens.remove(sessionToken); 587 } 588 updateServiceConnectionLocked(sessionState.mInputId, userId); 589 } 590 591 private void unregisterCallbackInternalLocked(IBinder clientToken, String inputId, 592 int userId) { 593 UserState userState = getUserStateLocked(userId); 594 ClientState clientState = userState.clientStateMap.get(clientToken); 595 if (clientState != null) { 596 clientState.mInputIds.remove(inputId); 597 if (clientState.isEmpty()) { 598 userState.clientStateMap.remove(clientToken); 599 } 600 } 601 602 ServiceState serviceState = userState.serviceStateMap.get(inputId); 603 if (serviceState == null) { 604 return; 605 } 606 607 // Remove this client from the client list and unregister the callback. 608 serviceState.mClientTokens.remove(clientToken); 609 if (!serviceState.mClientTokens.isEmpty()) { 610 // We have other clients who want to keep the callback. Do this later. 611 return; 612 } 613 if (serviceState.mService == null || serviceState.mCallback == null) { 614 return; 615 } 616 try { 617 serviceState.mService.unregisterCallback(serviceState.mCallback); 618 } catch (RemoteException e) { 619 Slog.e(TAG, "error in unregisterCallback", e); 620 } finally { 621 serviceState.mCallback = null; 622 updateServiceConnectionLocked(inputId, userId); 623 } 624 } 625 626 private void broadcastServiceAvailabilityChangedLocked(ServiceState serviceState) { 627 for (IBinder clientToken : serviceState.mClientTokens) { 628 try { 629 ITvInputClient.Stub.asInterface(clientToken).onAvailabilityChanged( 630 serviceState.mTvInputInfo.getId(), serviceState.mAvailable); 631 } catch (RemoteException e) { 632 Slog.e(TAG, "error in onAvailabilityChanged", e); 633 } 634 } 635 } 636 637 private final class BinderService extends ITvInputManager.Stub { 638 @Override 639 public List<TvInputInfo> getTvInputList(int userId) { 640 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 641 Binder.getCallingUid(), userId, "getTvInputList"); 642 final long identity = Binder.clearCallingIdentity(); 643 try { 644 synchronized (mLock) { 645 UserState userState = getUserStateLocked(resolvedUserId); 646 return new ArrayList<TvInputInfo>(userState.inputMap.values()); 647 } 648 } finally { 649 Binder.restoreCallingIdentity(identity); 650 } 651 } 652 653 @Override 654 public boolean getAvailability(final ITvInputClient client, final String inputId, 655 int userId) { 656 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 657 Binder.getCallingUid(), userId, "getAvailability"); 658 final long identity = Binder.clearCallingIdentity(); 659 try { 660 synchronized (mLock) { 661 UserState userState = getUserStateLocked(resolvedUserId); 662 ServiceState serviceState = userState.serviceStateMap.get(inputId); 663 if (serviceState != null) { 664 // We already know the status of this input service. Return the cached 665 // status. 666 return serviceState.mAvailable; 667 } 668 } 669 } finally { 670 Binder.restoreCallingIdentity(identity); 671 } 672 // STOPSHIP: Redesign the API around the availability change. For now, the service 673 // will be always available. 674 return true; 675 } 676 677 @Override 678 public void registerCallback(final ITvInputClient client, final String inputId, 679 int userId) { 680 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 681 Binder.getCallingUid(), userId, "registerCallback"); 682 final long identity = Binder.clearCallingIdentity(); 683 try { 684 synchronized (mLock) { 685 // Create a new service callback and add it to the callback map of the current 686 // service. 687 UserState userState = getUserStateLocked(resolvedUserId); 688 ServiceState serviceState = userState.serviceStateMap.get(inputId); 689 if (serviceState == null) { 690 serviceState = new ServiceState( 691 userState.inputMap.get(inputId), resolvedUserId); 692 userState.serviceStateMap.put(inputId, serviceState); 693 } 694 IBinder clientToken = client.asBinder(); 695 if (!serviceState.mClientTokens.contains(clientToken)) { 696 serviceState.mClientTokens.add(clientToken); 697 } 698 699 ClientState clientState = userState.clientStateMap.get(clientToken); 700 if (clientState == null) { 701 clientState = createClientStateLocked(clientToken, resolvedUserId); 702 } 703 if (!clientState.mInputIds.contains(inputId)) { 704 clientState.mInputIds.add(inputId); 705 } 706 707 if (serviceState.mService != null) { 708 if (serviceState.mCallback != null) { 709 // We already handled. 710 return; 711 } 712 serviceState.mCallback = new ServiceCallback(resolvedUserId); 713 try { 714 serviceState.mService.registerCallback(serviceState.mCallback); 715 } catch (RemoteException e) { 716 Slog.e(TAG, "error in registerCallback", e); 717 } 718 } else { 719 updateServiceConnectionLocked(inputId, resolvedUserId); 720 } 721 } 722 } finally { 723 Binder.restoreCallingIdentity(identity); 724 } 725 } 726 727 @Override 728 public void unregisterCallback(ITvInputClient client, String inputId, int userId) { 729 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 730 Binder.getCallingUid(), userId, "unregisterCallback"); 731 final long identity = Binder.clearCallingIdentity(); 732 try { 733 synchronized (mLock) { 734 unregisterCallbackInternalLocked(client.asBinder(), inputId, resolvedUserId); 735 } 736 } finally { 737 Binder.restoreCallingIdentity(identity); 738 } 739 } 740 741 @Override 742 public void createSession(final ITvInputClient client, final String inputId, 743 int seq, int userId) { 744 final int callingUid = Binder.getCallingUid(); 745 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 746 userId, "createSession"); 747 final long identity = Binder.clearCallingIdentity(); 748 try { 749 synchronized (mLock) { 750 UserState userState = getUserStateLocked(resolvedUserId); 751 ServiceState serviceState = userState.serviceStateMap.get(inputId); 752 if (serviceState == null) { 753 serviceState = new ServiceState( 754 userState.inputMap.get(inputId), resolvedUserId); 755 userState.serviceStateMap.put(inputId, serviceState); 756 } 757 // Send a null token immediately while reconnecting. 758 if (serviceState.mReconnecting == true) { 759 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 760 return; 761 } 762 763 // Create a new session token and a session state. 764 IBinder sessionToken = new Binder(); 765 SessionState sessionState = new SessionState(sessionToken, inputId, client, 766 seq, callingUid, resolvedUserId); 767 768 // Add them to the global session state map of the current user. 769 userState.sessionStateMap.put(sessionToken, sessionState); 770 771 // Also, add them to the session state map of the current service. 772 serviceState.mSessionTokens.add(sessionToken); 773 774 if (serviceState.mService != null) { 775 createSessionInternalLocked(serviceState.mService, sessionToken, 776 resolvedUserId); 777 } else { 778 updateServiceConnectionLocked(inputId, resolvedUserId); 779 } 780 } 781 } finally { 782 Binder.restoreCallingIdentity(identity); 783 } 784 } 785 786 @Override 787 public void releaseSession(IBinder sessionToken, int userId) { 788 final int callingUid = Binder.getCallingUid(); 789 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 790 userId, "releaseSession"); 791 final long identity = Binder.clearCallingIdentity(); 792 try { 793 synchronized (mLock) { 794 releaseSessionLocked(sessionToken, callingUid, resolvedUserId); 795 } 796 } finally { 797 Binder.restoreCallingIdentity(identity); 798 } 799 } 800 801 @Override 802 public void setSurface(IBinder sessionToken, Surface surface, int userId) { 803 final int callingUid = Binder.getCallingUid(); 804 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 805 userId, "setSurface"); 806 final long identity = Binder.clearCallingIdentity(); 807 try { 808 synchronized (mLock) { 809 try { 810 getSessionLocked(sessionToken, callingUid, resolvedUserId).setSurface( 811 surface); 812 } catch (RemoteException e) { 813 Slog.e(TAG, "error in setSurface", e); 814 } 815 } 816 } finally { 817 if (surface != null) { 818 // surface is not used in TvInputManagerService. 819 surface.release(); 820 } 821 Binder.restoreCallingIdentity(identity); 822 } 823 } 824 825 @Override 826 public void setVolume(IBinder sessionToken, float volume, int userId) { 827 final int callingUid = Binder.getCallingUid(); 828 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 829 userId, "setVolume"); 830 final long identity = Binder.clearCallingIdentity(); 831 try { 832 synchronized (mLock) { 833 try { 834 getSessionLocked(sessionToken, callingUid, resolvedUserId).setVolume( 835 volume); 836 } catch (RemoteException e) { 837 Slog.e(TAG, "error in setVolume", e); 838 } 839 } 840 } finally { 841 Binder.restoreCallingIdentity(identity); 842 } 843 } 844 845 @Override 846 public void tune(IBinder sessionToken, final Uri channelUri, int userId) { 847 final int callingUid = Binder.getCallingUid(); 848 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 849 userId, "tune"); 850 final long identity = Binder.clearCallingIdentity(); 851 try { 852 synchronized (mLock) { 853 try { 854 getSessionLocked(sessionToken, callingUid, resolvedUserId).tune(channelUri); 855 856 long currentTime = System.currentTimeMillis(); 857 long channelId = ContentUris.parseId(channelUri); 858 859 // Close the open log entry first, if any. 860 UserState userState = getUserStateLocked(resolvedUserId); 861 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 862 if (sessionState.mLogUri != null) { 863 SomeArgs args = SomeArgs.obtain(); 864 args.arg1 = sessionState.mLogUri; 865 args.arg2 = currentTime; 866 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args) 867 .sendToTarget(); 868 } 869 870 // Create a log entry and fill it later. 871 String packageName = userState.inputMap.get(sessionState.mInputId) 872 .getServiceInfo().packageName; 873 ContentValues values = new ContentValues(); 874 values.put(TvContract.WatchedPrograms.COLUMN_PACKAGE_NAME, packageName); 875 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 876 currentTime); 877 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 0); 878 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 879 880 sessionState.mLogUri = mContentResolver.insert( 881 TvContract.WatchedPrograms.CONTENT_URI, values); 882 SomeArgs args = SomeArgs.obtain(); 883 args.arg1 = sessionState.mLogUri; 884 args.arg2 = ContentUris.parseId(channelUri); 885 args.arg3 = currentTime; 886 mLogHandler.obtainMessage(LogHandler.MSG_OPEN_ENTRY, args).sendToTarget(); 887 } catch (RemoteException e) { 888 Slog.e(TAG, "error in tune", e); 889 return; 890 } 891 } 892 } finally { 893 Binder.restoreCallingIdentity(identity); 894 } 895 } 896 897 @Override 898 public void setCaptionEnabled(IBinder sessionToken, boolean enabled, int userId) { 899 final int callingUid = Binder.getCallingUid(); 900 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 901 userId, "setCaptionEnabled"); 902 final long identity = Binder.clearCallingIdentity(); 903 try { 904 synchronized (mLock) { 905 try { 906 getSessionLocked(sessionToken, callingUid, resolvedUserId) 907 .setCaptionEnabled(enabled); 908 } catch (RemoteException e) { 909 Slog.e(TAG, "error in setCaptionEnabled", e); 910 } 911 } 912 } finally { 913 Binder.restoreCallingIdentity(identity); 914 } 915 } 916 917 @Override 918 public void selectTrack(IBinder sessionToken, TvTrackInfo track, int userId) { 919 final int callingUid = Binder.getCallingUid(); 920 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 921 userId, "selectTrack"); 922 final long identity = Binder.clearCallingIdentity(); 923 try { 924 synchronized (mLock) { 925 try { 926 getSessionLocked(sessionToken, callingUid, resolvedUserId).selectTrack( 927 track); 928 } catch (RemoteException e) { 929 Slog.e(TAG, "error in selectTrack", e); 930 } 931 } 932 } finally { 933 Binder.restoreCallingIdentity(identity); 934 } 935 } 936 937 @Override 938 public void unselectTrack(IBinder sessionToken, TvTrackInfo track, int userId) { 939 final int callingUid = Binder.getCallingUid(); 940 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 941 userId, "unselectTrack"); 942 final long identity = Binder.clearCallingIdentity(); 943 try { 944 synchronized (mLock) { 945 try { 946 getSessionLocked(sessionToken, callingUid, resolvedUserId).unselectTrack( 947 track); 948 } catch (RemoteException e) { 949 Slog.e(TAG, "error in unselectTrack", e); 950 } 951 } 952 } finally { 953 Binder.restoreCallingIdentity(identity); 954 } 955 } 956 957 @Override 958 public void createOverlayView(IBinder sessionToken, IBinder windowToken, Rect frame, 959 int userId) { 960 final int callingUid = Binder.getCallingUid(); 961 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 962 userId, "createOverlayView"); 963 final long identity = Binder.clearCallingIdentity(); 964 try { 965 synchronized (mLock) { 966 try { 967 getSessionLocked(sessionToken, callingUid, resolvedUserId) 968 .createOverlayView(windowToken, frame); 969 } catch (RemoteException e) { 970 Slog.e(TAG, "error in createOverlayView", e); 971 } 972 } 973 } finally { 974 Binder.restoreCallingIdentity(identity); 975 } 976 } 977 978 @Override 979 public void relayoutOverlayView(IBinder sessionToken, Rect frame, int userId) { 980 final int callingUid = Binder.getCallingUid(); 981 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 982 userId, "relayoutOverlayView"); 983 final long identity = Binder.clearCallingIdentity(); 984 try { 985 synchronized (mLock) { 986 try { 987 getSessionLocked(sessionToken, callingUid, resolvedUserId) 988 .relayoutOverlayView(frame); 989 } catch (RemoteException e) { 990 Slog.e(TAG, "error in relayoutOverlayView", e); 991 } 992 } 993 } finally { 994 Binder.restoreCallingIdentity(identity); 995 } 996 } 997 998 @Override 999 public void removeOverlayView(IBinder sessionToken, int userId) { 1000 final int callingUid = Binder.getCallingUid(); 1001 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1002 userId, "removeOverlayView"); 1003 final long identity = Binder.clearCallingIdentity(); 1004 try { 1005 synchronized (mLock) { 1006 try { 1007 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1008 .removeOverlayView(); 1009 } catch (RemoteException e) { 1010 Slog.e(TAG, "error in removeOverlayView", e); 1011 } 1012 } 1013 } finally { 1014 Binder.restoreCallingIdentity(identity); 1015 } 1016 } 1017 1018 @Override 1019 public List<TvInputHardwareInfo> getHardwareList() throws RemoteException { 1020 if (mContext.checkCallingPermission( 1021 android.Manifest.permission.TV_INPUT_HARDWARE) 1022 != PackageManager.PERMISSION_GRANTED) { 1023 return null; 1024 } 1025 1026 final long identity = Binder.clearCallingIdentity(); 1027 try { 1028 return mTvInputHardwareManager.getHardwareList(); 1029 } finally { 1030 Binder.restoreCallingIdentity(identity); 1031 } 1032 } 1033 1034 @Override 1035 public ITvInputHardware acquireTvInputHardware(int deviceId, 1036 ITvInputHardwareCallback callback, int userId) throws RemoteException { 1037 if (mContext.checkCallingPermission( 1038 android.Manifest.permission.TV_INPUT_HARDWARE) 1039 != PackageManager.PERMISSION_GRANTED) { 1040 return null; 1041 } 1042 1043 final long identity = Binder.clearCallingIdentity(); 1044 final int callingUid = Binder.getCallingUid(); 1045 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1046 userId, "acquireTvInputHardware"); 1047 try { 1048 return mTvInputHardwareManager.acquireHardware( 1049 deviceId, callback, callingUid, resolvedUserId); 1050 } finally { 1051 Binder.restoreCallingIdentity(identity); 1052 } 1053 } 1054 1055 @Override 1056 public void releaseTvInputHardware(int deviceId, ITvInputHardware hardware, int userId) 1057 throws RemoteException { 1058 if (mContext.checkCallingPermission( 1059 android.Manifest.permission.TV_INPUT_HARDWARE) 1060 != PackageManager.PERMISSION_GRANTED) { 1061 return; 1062 } 1063 1064 final long identity = Binder.clearCallingIdentity(); 1065 final int callingUid = Binder.getCallingUid(); 1066 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1067 userId, "releaseTvInputHardware"); 1068 try { 1069 mTvInputHardwareManager.releaseHardware( 1070 deviceId, hardware, callingUid, resolvedUserId); 1071 } finally { 1072 Binder.restoreCallingIdentity(identity); 1073 } 1074 } 1075 1076 @Override 1077 @SuppressWarnings("resource") 1078 protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) { 1079 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1080 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 1081 != PackageManager.PERMISSION_GRANTED) { 1082 pw.println("Permission Denial: can't dump TvInputManager from pid=" 1083 + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); 1084 return; 1085 } 1086 1087 synchronized (mLock) { 1088 pw.println("User Ids (Current user: " + mCurrentUserId + "):"); 1089 pw.increaseIndent(); 1090 for (int i = 0; i < mUserStates.size(); i++) { 1091 int userId = mUserStates.keyAt(i); 1092 pw.println(Integer.valueOf(userId)); 1093 } 1094 pw.decreaseIndent(); 1095 1096 for (int i = 0; i < mUserStates.size(); i++) { 1097 int userId = mUserStates.keyAt(i); 1098 UserState userState = getUserStateLocked(userId); 1099 pw.println("UserState (" + userId + "):"); 1100 pw.increaseIndent(); 1101 1102 pw.println("inputMap: inputId -> TvInputInfo"); 1103 pw.increaseIndent(); 1104 for (TvInputInfo info : userState.inputMap.values()) { 1105 pw.println(info.toString()); 1106 } 1107 pw.decreaseIndent(); 1108 1109 pw.println("packageList:"); 1110 pw.increaseIndent(); 1111 for (String packageName : userState.packageList) { 1112 pw.println(packageName); 1113 } 1114 pw.decreaseIndent(); 1115 1116 pw.println("clientStateMap: ITvInputClient -> ClientState"); 1117 pw.increaseIndent(); 1118 for (Map.Entry<IBinder, ClientState> entry : 1119 userState.clientStateMap.entrySet()) { 1120 ClientState client = entry.getValue(); 1121 pw.println(entry.getKey() + ": " + client); 1122 1123 pw.increaseIndent(); 1124 1125 pw.println("mInputIds:"); 1126 pw.increaseIndent(); 1127 for (String inputId : client.mInputIds) { 1128 pw.println(inputId); 1129 } 1130 pw.decreaseIndent(); 1131 1132 pw.println("mSessionTokens:"); 1133 pw.increaseIndent(); 1134 for (IBinder token : client.mSessionTokens) { 1135 pw.println("" + token); 1136 } 1137 pw.decreaseIndent(); 1138 1139 pw.println("mClientTokens: " + client.mClientToken); 1140 pw.println("mUserId: " + client.mUserId); 1141 1142 pw.decreaseIndent(); 1143 } 1144 pw.decreaseIndent(); 1145 1146 pw.println("serviceStateMap: inputId -> ServiceState"); 1147 pw.increaseIndent(); 1148 for (Map.Entry<String, ServiceState> entry : 1149 userState.serviceStateMap.entrySet()) { 1150 ServiceState service = entry.getValue(); 1151 pw.println(entry.getKey() + ": " + service); 1152 1153 pw.increaseIndent(); 1154 1155 pw.println("mClientTokens:"); 1156 pw.increaseIndent(); 1157 for (IBinder token : service.mClientTokens) { 1158 pw.println("" + token); 1159 } 1160 pw.decreaseIndent(); 1161 1162 pw.println("mSessionTokens:"); 1163 pw.increaseIndent(); 1164 for (IBinder token : service.mSessionTokens) { 1165 pw.println("" + token); 1166 } 1167 pw.decreaseIndent(); 1168 1169 pw.println("mService: " + service.mService); 1170 pw.println("mCallback: " + service.mCallback); 1171 pw.println("mBound: " + service.mBound); 1172 pw.println("mAvailable: " + service.mAvailable); 1173 pw.println("mReconnecting: " + service.mReconnecting); 1174 1175 pw.decreaseIndent(); 1176 } 1177 pw.decreaseIndent(); 1178 1179 pw.println("sessionStateMap: ITvInputSession -> SessionState"); 1180 pw.increaseIndent(); 1181 for (Map.Entry<IBinder, SessionState> entry : 1182 userState.sessionStateMap.entrySet()) { 1183 SessionState session = entry.getValue(); 1184 pw.println(entry.getKey() + ": " + session); 1185 1186 pw.increaseIndent(); 1187 pw.println("mInputId: " + session.mInputId); 1188 pw.println("mClient: " + session.mClient); 1189 pw.println("mSeq: " + session.mSeq); 1190 pw.println("mCallingUid: " + session.mCallingUid); 1191 pw.println("mUserId: " + session.mUserId); 1192 pw.println("mSessionToken: " + session.mSessionToken); 1193 pw.println("mSession: " + session.mSession); 1194 pw.println("mLogUri: " + session.mLogUri); 1195 pw.decreaseIndent(); 1196 } 1197 pw.decreaseIndent(); 1198 1199 pw.decreaseIndent(); 1200 } 1201 } 1202 } 1203 } 1204 1205 private static final class UserState { 1206 // A mapping from the TV input id to its TvInputInfo. 1207 private final Map<String, TvInputInfo> inputMap = new HashMap<String,TvInputInfo>(); 1208 1209 // A list of all TV input packages. 1210 private final Set<String> packageList = new HashSet<String>(); 1211 1212 // A mapping from the token of a client to its state. 1213 private final Map<IBinder, ClientState> clientStateMap = 1214 new HashMap<IBinder, ClientState>(); 1215 1216 // A mapping from the name of a TV input service to its state. 1217 private final Map<String, ServiceState> serviceStateMap = 1218 new HashMap<String, ServiceState>(); 1219 1220 // A mapping from the token of a TV input session to its state. 1221 private final Map<IBinder, SessionState> sessionStateMap = 1222 new HashMap<IBinder, SessionState>(); 1223 } 1224 1225 private final class ClientState implements IBinder.DeathRecipient { 1226 private final List<String> mInputIds = new ArrayList<String>(); 1227 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1228 1229 private IBinder mClientToken; 1230 private final int mUserId; 1231 1232 ClientState(IBinder clientToken, int userId) { 1233 mClientToken = clientToken; 1234 mUserId = userId; 1235 } 1236 1237 public boolean isEmpty() { 1238 return mInputIds.isEmpty() && mSessionTokens.isEmpty(); 1239 } 1240 1241 @Override 1242 public void binderDied() { 1243 synchronized (mLock) { 1244 UserState userState = getUserStateLocked(mUserId); 1245 // DO NOT remove the client state of clientStateMap in this method. It will be 1246 // removed in releaseSessionLocked() or unregisterCallbackInternalLocked(). 1247 ClientState clientState = userState.clientStateMap.get(mClientToken); 1248 if (clientState != null) { 1249 while (clientState.mSessionTokens.size() > 0) { 1250 releaseSessionLocked( 1251 clientState.mSessionTokens.get(0), Process.SYSTEM_UID, mUserId); 1252 } 1253 while (clientState.mInputIds.size() > 0) { 1254 unregisterCallbackInternalLocked( 1255 mClientToken, clientState.mInputIds.get(0), mUserId); 1256 } 1257 } 1258 mClientToken = null; 1259 } 1260 } 1261 } 1262 1263 private final class ServiceState { 1264 private final List<IBinder> mClientTokens = new ArrayList<IBinder>(); 1265 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1266 private final ServiceConnection mConnection; 1267 private final TvInputInfo mTvInputInfo; 1268 1269 private ITvInputService mService; 1270 private ServiceCallback mCallback; 1271 private boolean mBound; 1272 private boolean mAvailable; 1273 private boolean mReconnecting; 1274 1275 private ServiceState(TvInputInfo inputInfo, int userId) { 1276 mTvInputInfo = inputInfo; 1277 mConnection = new InputServiceConnection(inputInfo, userId); 1278 } 1279 } 1280 1281 private final class SessionState implements IBinder.DeathRecipient { 1282 private final String mInputId; 1283 private final ITvInputClient mClient; 1284 private final int mSeq; 1285 private final int mCallingUid; 1286 private final int mUserId; 1287 private final IBinder mSessionToken; 1288 private ITvInputSession mSession; 1289 private Uri mLogUri; 1290 1291 private SessionState(IBinder sessionToken, String inputId, ITvInputClient client, int seq, 1292 int callingUid, int userId) { 1293 mSessionToken = sessionToken; 1294 mInputId = inputId; 1295 mClient = client; 1296 mSeq = seq; 1297 mCallingUid = callingUid; 1298 mUserId = userId; 1299 } 1300 1301 @Override 1302 public void binderDied() { 1303 synchronized (mLock) { 1304 mSession = null; 1305 if (mClient != null) { 1306 try { 1307 mClient.onSessionReleased(mSeq); 1308 } catch(RemoteException e) { 1309 Slog.e(TAG, "error in onSessionReleased", e); 1310 } 1311 } 1312 removeSessionStateLocked(mSessionToken, mUserId); 1313 } 1314 } 1315 } 1316 1317 private final class InputServiceConnection implements ServiceConnection { 1318 private final TvInputInfo mTvInputInfo; 1319 private final int mUserId; 1320 1321 private InputServiceConnection(TvInputInfo inputInfo, int userId) { 1322 mUserId = userId; 1323 mTvInputInfo = inputInfo; 1324 } 1325 1326 @Override 1327 public void onServiceConnected(ComponentName name, IBinder service) { 1328 if (DEBUG) { 1329 Slog.d(TAG, "onServiceConnected(inputId=" + mTvInputInfo.getId() + ")"); 1330 } 1331 synchronized (mLock) { 1332 ServiceState serviceState = getServiceStateLocked(mTvInputInfo.getId(), mUserId); 1333 serviceState.mService = ITvInputService.Stub.asInterface(service); 1334 1335 // Register a callback, if we need to. 1336 if (!serviceState.mClientTokens.isEmpty() && serviceState.mCallback == null) { 1337 serviceState.mCallback = new ServiceCallback(mUserId); 1338 try { 1339 serviceState.mService.registerCallback(serviceState.mCallback); 1340 } catch (RemoteException e) { 1341 Slog.e(TAG, "error in registerCallback", e); 1342 } 1343 } 1344 1345 // And create sessions, if any. 1346 for (IBinder sessionToken : serviceState.mSessionTokens) { 1347 createSessionInternalLocked(serviceState.mService, sessionToken, mUserId); 1348 } 1349 } 1350 } 1351 1352 @Override 1353 public void onServiceDisconnected(ComponentName name) { 1354 if (DEBUG) { 1355 Slog.d(TAG, "onServiceDisconnected(inputId=" + mTvInputInfo.getId() + ")"); 1356 } 1357 if (!mTvInputInfo.getComponent().equals(name)) { 1358 throw new IllegalArgumentException("Mismatched ComponentName: " 1359 + mTvInputInfo.getComponent() + " (expected), " + name + " (actual)."); 1360 } 1361 synchronized (mLock) { 1362 UserState userState = getUserStateLocked(mUserId); 1363 ServiceState serviceState = userState.serviceStateMap.get(mTvInputInfo.getId()); 1364 if (serviceState != null) { 1365 serviceState.mReconnecting = true; 1366 serviceState.mBound = false; 1367 serviceState.mService = null; 1368 serviceState.mCallback = null; 1369 1370 // Send null tokens for not finishing create session events. 1371 for (IBinder sessionToken : serviceState.mSessionTokens) { 1372 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1373 if (sessionState.mSession == null) { 1374 removeSessionStateLocked(sessionToken, sessionState.mUserId); 1375 sendSessionTokenToClientLocked(sessionState.mClient, 1376 sessionState.mInputId, null, null, sessionState.mSeq); 1377 } 1378 } 1379 1380 if (serviceState.mAvailable) { 1381 serviceState.mAvailable = false; 1382 broadcastServiceAvailabilityChangedLocked(serviceState); 1383 } 1384 updateServiceConnectionLocked(mTvInputInfo.getId(), mUserId); 1385 } 1386 } 1387 } 1388 } 1389 1390 private final class ServiceCallback extends ITvInputServiceCallback.Stub { 1391 private final int mUserId; 1392 1393 ServiceCallback(int userId) { 1394 mUserId = userId; 1395 } 1396 1397 @Override 1398 public void onAvailabilityChanged(String inputId, boolean isAvailable) { 1399 if (DEBUG) { 1400 Slog.d(TAG, "onAvailabilityChanged(inputId=" + inputId + ", isAvailable=" 1401 + isAvailable + ")"); 1402 } 1403 synchronized (mLock) { 1404 ServiceState serviceState = getServiceStateLocked(inputId, mUserId); 1405 if (serviceState.mAvailable != isAvailable) { 1406 serviceState.mAvailable = isAvailable; 1407 broadcastServiceAvailabilityChangedLocked(serviceState); 1408 } 1409 } 1410 } 1411 } 1412 1413 private final class LogHandler extends Handler { 1414 private static final int MSG_OPEN_ENTRY = 1; 1415 private static final int MSG_UPDATE_ENTRY = 2; 1416 private static final int MSG_CLOSE_ENTRY = 3; 1417 1418 public LogHandler(Looper looper) { 1419 super(looper); 1420 } 1421 1422 @Override 1423 public void handleMessage(Message msg) { 1424 switch (msg.what) { 1425 case MSG_OPEN_ENTRY: { 1426 SomeArgs args = (SomeArgs) msg.obj; 1427 Uri uri = (Uri) args.arg1; 1428 long channelId = (long) args.arg2; 1429 long time = (long) args.arg3; 1430 onOpenEntry(uri, channelId, time); 1431 args.recycle(); 1432 return; 1433 } 1434 case MSG_UPDATE_ENTRY: { 1435 SomeArgs args = (SomeArgs) msg.obj; 1436 Uri uri = (Uri) args.arg1; 1437 long channelId = (long) args.arg2; 1438 long time = (long) args.arg3; 1439 onUpdateEntry(uri, channelId, time); 1440 args.recycle(); 1441 return; 1442 } 1443 case MSG_CLOSE_ENTRY: { 1444 SomeArgs args = (SomeArgs) msg.obj; 1445 Uri uri = (Uri) args.arg1; 1446 long time = (long) args.arg2; 1447 onCloseEntry(uri, time); 1448 args.recycle(); 1449 return; 1450 } 1451 default: { 1452 Slog.w(TAG, "Unhandled message code: " + msg.what); 1453 return; 1454 } 1455 } 1456 } 1457 1458 private void onOpenEntry(Uri uri, long channelId, long watchStarttime) { 1459 String[] projection = { 1460 TvContract.Programs.COLUMN_TITLE, 1461 TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS, 1462 TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS, 1463 TvContract.Programs.COLUMN_SHORT_DESCRIPTION 1464 }; 1465 String selection = TvContract.Programs.COLUMN_CHANNEL_ID + "=? AND " 1466 + TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + "<=? AND " 1467 + TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS + ">?"; 1468 String[] selectionArgs = { 1469 String.valueOf(channelId), 1470 String.valueOf(watchStarttime), 1471 String.valueOf(watchStarttime) 1472 }; 1473 String sortOrder = TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + " ASC"; 1474 Cursor cursor = null; 1475 try { 1476 cursor = mContentResolver.query(TvContract.Programs.CONTENT_URI, projection, 1477 selection, selectionArgs, sortOrder); 1478 if (cursor != null && cursor.moveToNext()) { 1479 ContentValues values = new ContentValues(); 1480 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, cursor.getString(0)); 1481 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1482 cursor.getLong(1)); 1483 long endTime = cursor.getLong(2); 1484 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1485 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, cursor.getString(3)); 1486 mContentResolver.update(uri, values, null, null); 1487 1488 // Schedule an update when the current program ends. 1489 SomeArgs args = SomeArgs.obtain(); 1490 args.arg1 = uri; 1491 args.arg2 = channelId; 1492 args.arg3 = endTime; 1493 Message msg = obtainMessage(LogHandler.MSG_UPDATE_ENTRY, args); 1494 sendMessageDelayed(msg, endTime - System.currentTimeMillis()); 1495 } 1496 } finally { 1497 if (cursor != null) { 1498 cursor.close(); 1499 } 1500 } 1501 } 1502 1503 private void onUpdateEntry(Uri uri, long channelId, long time) { 1504 String[] projection = { 1505 TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1506 TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 1507 TvContract.WatchedPrograms.COLUMN_TITLE, 1508 TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1509 TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, 1510 TvContract.WatchedPrograms.COLUMN_DESCRIPTION 1511 }; 1512 Cursor cursor = null; 1513 try { 1514 cursor = mContentResolver.query(uri, projection, null, null, null); 1515 if (cursor != null && cursor.moveToNext()) { 1516 long watchStartTime = cursor.getLong(0); 1517 long watchEndTime = cursor.getLong(1); 1518 String title = cursor.getString(2); 1519 long startTime = cursor.getLong(3); 1520 long endTime = cursor.getLong(4); 1521 String description = cursor.getString(5); 1522 1523 // Do nothing if the current log entry is already closed. 1524 if (watchEndTime > 0) { 1525 return; 1526 } 1527 1528 // The current program has just ended. Create a (complete) log entry off the 1529 // current entry. 1530 ContentValues values = new ContentValues(); 1531 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1532 watchStartTime); 1533 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, time); 1534 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 1535 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, title); 1536 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, startTime); 1537 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1538 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, description); 1539 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 1540 } 1541 } finally { 1542 if (cursor != null) { 1543 cursor.close(); 1544 } 1545 } 1546 // Re-open the current log entry with the next program information. 1547 onOpenEntry(uri, channelId, time); 1548 } 1549 1550 private void onCloseEntry(Uri uri, long watchEndTime) { 1551 ContentValues values = new ContentValues(); 1552 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, watchEndTime); 1553 mContentResolver.update(uri, values, null, null); 1554 } 1555 } 1556} 1557