TvInputManagerService.java revision 6057102dbb746593a7d59cf377c969b62e38c664
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 static android.media.tv.TvInputManager.INPUT_STATE_CONNECTED; 20import static android.media.tv.TvInputManager.INPUT_STATE_DISCONNECTED; 21 22import android.app.ActivityManager; 23import android.content.BroadcastReceiver; 24import android.content.ComponentName; 25import android.content.ContentProviderOperation; 26import android.content.ContentProviderResult; 27import android.content.ContentResolver; 28import android.content.ContentUris; 29import android.content.ContentValues; 30import android.content.Context; 31import android.content.Intent; 32import android.content.IntentFilter; 33import android.content.OperationApplicationException; 34import android.content.ServiceConnection; 35import android.content.pm.PackageManager; 36import android.content.pm.ResolveInfo; 37import android.content.pm.ServiceInfo; 38import android.database.Cursor; 39import android.graphics.Rect; 40import android.media.tv.ITvInputClient; 41import android.media.tv.ITvInputHardware; 42import android.media.tv.ITvInputHardwareCallback; 43import android.media.tv.ITvInputManager; 44import android.media.tv.ITvInputManagerCallback; 45import android.media.tv.ITvInputService; 46import android.media.tv.ITvInputServiceCallback; 47import android.media.tv.ITvInputSession; 48import android.media.tv.ITvInputSessionCallback; 49import android.media.tv.TvContract; 50import android.media.tv.TvInputHardwareInfo; 51import android.media.tv.TvInputInfo; 52import android.media.tv.TvInputService; 53import android.media.tv.TvTrackInfo; 54import android.net.Uri; 55import android.os.Binder; 56import android.os.Bundle; 57import android.os.Handler; 58import android.os.IBinder; 59import android.os.Looper; 60import android.os.Message; 61import android.os.Process; 62import android.os.RemoteException; 63import android.os.UserHandle; 64import android.util.Slog; 65import android.util.SparseArray; 66import android.view.InputChannel; 67import android.view.Surface; 68 69import com.android.internal.content.PackageMonitor; 70import com.android.internal.os.SomeArgs; 71import com.android.internal.util.IndentingPrintWriter; 72import com.android.server.IoThread; 73import com.android.server.SystemService; 74 75import org.xmlpull.v1.XmlPullParserException; 76 77import java.io.FileDescriptor; 78import java.io.IOException; 79import java.io.PrintWriter; 80import java.util.ArrayList; 81import java.util.HashMap; 82import java.util.HashSet; 83import java.util.List; 84import java.util.Map; 85import java.util.Set; 86 87/** This class provides a system service that manages television inputs. */ 88public final class TvInputManagerService extends SystemService { 89 // STOPSHIP: Turn debugging off. 90 private static final boolean DEBUG = true; 91 private static final String TAG = "TvInputManagerService"; 92 93 private final Context mContext; 94 private final TvInputHardwareManager mTvInputHardwareManager; 95 96 private final ContentResolver mContentResolver; 97 98 // A global lock. 99 private final Object mLock = new Object(); 100 101 // ID of the current user. 102 private int mCurrentUserId = UserHandle.USER_OWNER; 103 104 // A map from user id to UserState. 105 private final SparseArray<UserState> mUserStates = new SparseArray<UserState>(); 106 107 private final Handler mLogHandler; 108 109 public TvInputManagerService(Context context) { 110 super(context); 111 112 mContext = context; 113 mContentResolver = context.getContentResolver(); 114 mLogHandler = new LogHandler(IoThread.get().getLooper()); 115 116 mTvInputHardwareManager = new TvInputHardwareManager(context, new Client()); 117 118 synchronized (mLock) { 119 mUserStates.put(mCurrentUserId, new UserState()); 120 } 121 } 122 123 @Override 124 public void onStart() { 125 publishBinderService(Context.TV_INPUT_SERVICE, new BinderService()); 126 } 127 128 @Override 129 public void onBootPhase(int phase) { 130 if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { 131 registerBroadcastReceivers(); 132 synchronized (mLock) { 133 buildTvInputListLocked(mCurrentUserId); 134 } 135 } 136 mTvInputHardwareManager.onBootPhase(phase); 137 } 138 139 private void registerBroadcastReceivers() { 140 PackageMonitor monitor = new PackageMonitor() { 141 @Override 142 public void onSomePackagesChanged() { 143 synchronized (mLock) { 144 buildTvInputListLocked(mCurrentUserId); 145 } 146 } 147 148 @Override 149 public void onPackageRemoved(String packageName, int uid) { 150 synchronized (mLock) { 151 UserState userState = getUserStateLocked(mCurrentUserId); 152 if (!userState.packageSet.contains(packageName)) { 153 // Not a TV input package. 154 return; 155 } 156 } 157 158 ArrayList<ContentProviderOperation> operations = 159 new ArrayList<ContentProviderOperation>(); 160 161 String selection = TvContract.BaseTvColumns.COLUMN_PACKAGE_NAME + "=?"; 162 String[] selectionArgs = { packageName }; 163 164 operations.add(ContentProviderOperation.newDelete(TvContract.Channels.CONTENT_URI) 165 .withSelection(selection, selectionArgs).build()); 166 operations.add(ContentProviderOperation.newDelete(TvContract.Programs.CONTENT_URI) 167 .withSelection(selection, selectionArgs).build()); 168 operations.add(ContentProviderOperation 169 .newDelete(TvContract.WatchedPrograms.CONTENT_URI) 170 .withSelection(selection, selectionArgs).build()); 171 172 ContentProviderResult[] results = null; 173 try { 174 results = mContentResolver.applyBatch(TvContract.AUTHORITY, operations); 175 } catch (RemoteException | OperationApplicationException e) { 176 Slog.e(TAG, "error in applyBatch" + e); 177 } 178 179 if (DEBUG) { 180 Slog.d(TAG, "onPackageRemoved(packageName=" + packageName + ", uid=" + uid 181 + ")"); 182 Slog.d(TAG, "results=" + results); 183 } 184 } 185 }; 186 monitor.register(mContext, null, UserHandle.ALL, true); 187 188 IntentFilter intentFilter = new IntentFilter(); 189 intentFilter.addAction(Intent.ACTION_USER_SWITCHED); 190 intentFilter.addAction(Intent.ACTION_USER_REMOVED); 191 mContext.registerReceiverAsUser(new BroadcastReceiver() { 192 @Override 193 public void onReceive(Context context, Intent intent) { 194 String action = intent.getAction(); 195 if (Intent.ACTION_USER_SWITCHED.equals(action)) { 196 switchUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 197 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 198 removeUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 199 } 200 } 201 }, UserHandle.ALL, intentFilter, null, null); 202 } 203 204 private void buildTvInputListLocked(int userId) { 205 UserState userState = getUserStateLocked(userId); 206 207 Map<String, TvInputState> oldInputMap = userState.inputMap; 208 userState.inputMap = new HashMap<String, TvInputState>(); 209 210 userState.packageSet.clear(); 211 212 if (DEBUG) Slog.d(TAG, "buildTvInputList"); 213 PackageManager pm = mContext.getPackageManager(); 214 List<ResolveInfo> services = pm.queryIntentServices( 215 new Intent(TvInputService.SERVICE_INTERFACE), 216 PackageManager.GET_SERVICES | PackageManager.GET_META_DATA); 217 for (ResolveInfo ri : services) { 218 ServiceInfo si = ri.serviceInfo; 219 if (!android.Manifest.permission.BIND_TV_INPUT.equals(si.permission)) { 220 Slog.w(TAG, "Skipping TV input " + si.name + ": it does not require the permission " 221 + android.Manifest.permission.BIND_TV_INPUT); 222 continue; 223 } 224 try { 225 TvInputInfo info = TvInputInfo.createTvInputInfo(mContext, ri); 226 if (DEBUG) Slog.d(TAG, "add " + info.getId()); 227 TvInputState state = oldInputMap.get(info.getId()); 228 if (state == null) { 229 state = new TvInputState(); 230 } 231 userState.inputMap.put(info.getId(), state); 232 state.mInfo = info; 233 userState.packageSet.add(si.packageName); 234 235 // Reconnect the service if existing input is updated. 236 updateServiceConnectionLocked(info.getId(), userId); 237 } catch (IOException | XmlPullParserException e) { 238 Slog.e(TAG, "Can't load TV input " + si.name, e); 239 } 240 } 241 oldInputMap.clear(); 242 } 243 244 private void switchUser(int userId) { 245 synchronized (mLock) { 246 if (mCurrentUserId == userId) { 247 return; 248 } 249 // final int oldUserId = mCurrentUserId; 250 // TODO: Release services and sessions in the old user state, if needed. 251 mCurrentUserId = userId; 252 253 UserState userState = mUserStates.get(userId); 254 if (userState == null) { 255 userState = new UserState(); 256 } 257 mUserStates.put(userId, userState); 258 buildTvInputListLocked(userId); 259 } 260 } 261 262 private void removeUser(int userId) { 263 synchronized (mLock) { 264 UserState userState = mUserStates.get(userId); 265 if (userState == null) { 266 return; 267 } 268 // Release created sessions. 269 for (SessionState state : userState.sessionStateMap.values()) { 270 if (state.mSession != null) { 271 try { 272 state.mSession.release(); 273 } catch (RemoteException e) { 274 Slog.e(TAG, "error in release", e); 275 } 276 } 277 } 278 userState.sessionStateMap.clear(); 279 280 // Unregister all callbacks and unbind all services. 281 for (ServiceState serviceState : userState.serviceStateMap.values()) { 282 if (serviceState.mCallback != null) { 283 try { 284 serviceState.mService.unregisterCallback(serviceState.mCallback); 285 } catch (RemoteException e) { 286 Slog.e(TAG, "error in unregisterCallback", e); 287 } 288 } 289 serviceState.mClientTokens.clear(); 290 mContext.unbindService(serviceState.mConnection); 291 } 292 userState.serviceStateMap.clear(); 293 294 userState.clientStateMap.clear(); 295 296 mUserStates.remove(userId); 297 } 298 } 299 300 private UserState getUserStateLocked(int userId) { 301 UserState userState = mUserStates.get(userId); 302 if (userState == null) { 303 throw new IllegalStateException("User state not found for user ID " + userId); 304 } 305 return userState; 306 } 307 308 private ServiceState getServiceStateLocked(String inputId, int userId) { 309 UserState userState = getUserStateLocked(userId); 310 ServiceState serviceState = userState.serviceStateMap.get(inputId); 311 if (serviceState == null) { 312 throw new IllegalStateException("Service state not found for " + inputId + " (userId=" 313 + userId + ")"); 314 } 315 return serviceState; 316 } 317 318 private SessionState getSessionStateLocked(IBinder sessionToken, int callingUid, int userId) { 319 UserState userState = getUserStateLocked(userId); 320 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 321 if (sessionState == null) { 322 throw new IllegalArgumentException("Session state not found for token " + sessionToken); 323 } 324 // Only the application that requested this session or the system can access it. 325 if (callingUid != Process.SYSTEM_UID && callingUid != sessionState.mCallingUid) { 326 throw new SecurityException("Illegal access to the session with token " + sessionToken 327 + " from uid " + callingUid); 328 } 329 return sessionState; 330 } 331 332 private ITvInputSession getSessionLocked(IBinder sessionToken, int callingUid, int userId) { 333 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 334 ITvInputSession session = sessionState.mSession; 335 if (session == null) { 336 throw new IllegalStateException("Session not yet created for token " + sessionToken); 337 } 338 return session; 339 } 340 341 private int resolveCallingUserId(int callingPid, int callingUid, int requestedUserId, 342 String methodName) { 343 return ActivityManager.handleIncomingUser(callingPid, callingUid, requestedUserId, false, 344 false, methodName, null); 345 } 346 347 private void updateServiceConnectionLocked(String inputId, int userId) { 348 UserState userState = getUserStateLocked(userId); 349 ServiceState serviceState = userState.serviceStateMap.get(inputId); 350 if (serviceState == null) { 351 return; 352 } 353 if (serviceState.mReconnecting) { 354 if (!serviceState.mSessionTokens.isEmpty()) { 355 // wait until all the sessions are removed. 356 return; 357 } 358 serviceState.mReconnecting = false; 359 } 360 boolean isStateEmpty = serviceState.mClientTokens.isEmpty() 361 && serviceState.mSessionTokens.isEmpty(); 362 if (serviceState.mService == null && !isStateEmpty && userId == mCurrentUserId) { 363 // This means that the service is not yet connected but its state indicates that we 364 // have pending requests. Then, connect the service. 365 if (serviceState.mBound) { 366 // We have already bound to the service so we don't try to bind again until after we 367 // unbind later on. 368 return; 369 } 370 if (DEBUG) { 371 Slog.d(TAG, "bindServiceAsUser(inputId=" + inputId + ", userId=" + userId 372 + ")"); 373 } 374 375 Intent i = new Intent(TvInputService.SERVICE_INTERFACE).setComponent( 376 userState.inputMap.get(inputId).mInfo.getComponent()); 377 // Binding service may fail if the service is updating. 378 // In that case, the connection will be revived in buildTvInputListLocked called by 379 // onSomePackagesChanged. 380 serviceState.mBound = mContext.bindServiceAsUser( 381 i, serviceState.mConnection, Context.BIND_AUTO_CREATE, new UserHandle(userId)); 382 } else if (serviceState.mService != null && isStateEmpty) { 383 // This means that the service is already connected but its state indicates that we have 384 // nothing to do with it. Then, disconnect the service. 385 if (DEBUG) { 386 Slog.d(TAG, "unbindService(inputId=" + inputId + ")"); 387 } 388 mContext.unbindService(serviceState.mConnection); 389 userState.serviceStateMap.remove(inputId); 390 } 391 } 392 393 private ClientState createClientStateLocked(IBinder clientToken, int userId) { 394 UserState userState = getUserStateLocked(userId); 395 ClientState clientState = new ClientState(clientToken, userId); 396 try { 397 clientToken.linkToDeath(clientState, 0); 398 } catch (RemoteException e) { 399 Slog.e(TAG, "Client is already died."); 400 } 401 userState.clientStateMap.put(clientToken, clientState); 402 return clientState; 403 } 404 405 private void createSessionInternalLocked(ITvInputService service, final IBinder sessionToken, 406 final int userId) { 407 final UserState userState = getUserStateLocked(userId); 408 final SessionState sessionState = userState.sessionStateMap.get(sessionToken); 409 if (DEBUG) { 410 Slog.d(TAG, "createSessionInternalLocked(inputId=" + sessionState.mInputId + ")"); 411 } 412 413 final InputChannel[] channels = InputChannel.openInputChannelPair(sessionToken.toString()); 414 415 // Set up a callback to send the session token. 416 ITvInputSessionCallback callback = new ITvInputSessionCallback.Stub() { 417 @Override 418 public void onSessionCreated(ITvInputSession session) { 419 if (DEBUG) { 420 Slog.d(TAG, "onSessionCreated(inputId=" + sessionState.mInputId + ")"); 421 } 422 synchronized (mLock) { 423 sessionState.mSession = session; 424 if (session == null) { 425 removeSessionStateLocked(sessionToken, userId); 426 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInputId, 427 null, null, sessionState.mSeq); 428 } else { 429 try { 430 session.asBinder().linkToDeath(sessionState, 0); 431 } catch (RemoteException e) { 432 Slog.e(TAG, "Session is already died."); 433 } 434 435 IBinder clientToken = sessionState.mClient.asBinder(); 436 ClientState clientState = userState.clientStateMap.get(clientToken); 437 if (clientState == null) { 438 clientState = createClientStateLocked(clientToken, userId); 439 } 440 clientState.mSessionTokens.add(sessionState.mSessionToken); 441 442 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInputId, 443 sessionToken, channels[0], sessionState.mSeq); 444 } 445 channels[0].dispose(); 446 } 447 } 448 449 @Override 450 public void onChannelRetuned(Uri channelUri) { 451 synchronized (mLock) { 452 if (DEBUG) { 453 Slog.d(TAG, "onChannelRetuned(" + channelUri + ")"); 454 } 455 if (sessionState.mSession == null || sessionState.mClient == null) { 456 return; 457 } 458 try { 459 // TODO: Consider adding this channel change in the watch log. When we do 460 // that, how we can protect the watch log from malicious tv inputs should 461 // be addressed. e.g. add a field which represents where the channel change 462 // originated from. 463 sessionState.mClient.onChannelRetuned(channelUri, sessionState.mSeq); 464 } catch (RemoteException e) { 465 Slog.e(TAG, "error in onChannelRetuned"); 466 } 467 } 468 } 469 470 @Override 471 public void onTrackInfoChanged(List<TvTrackInfo> tracks) { 472 synchronized (mLock) { 473 if (DEBUG) { 474 Slog.d(TAG, "onTrackInfoChanged(" + tracks + ")"); 475 } 476 if (sessionState.mSession == null || sessionState.mClient == null) { 477 return; 478 } 479 try { 480 sessionState.mClient.onTrackInfoChanged(tracks, 481 sessionState.mSeq); 482 } catch (RemoteException e) { 483 Slog.e(TAG, "error in onTrackInfoChanged"); 484 } 485 } 486 } 487 488 @Override 489 public void onVideoAvailable() { 490 synchronized (mLock) { 491 if (DEBUG) { 492 Slog.d(TAG, "onVideoAvailable()"); 493 } 494 if (sessionState.mSession == null || sessionState.mClient == null) { 495 return; 496 } 497 try { 498 sessionState.mClient.onVideoAvailable(sessionState.mSeq); 499 } catch (RemoteException e) { 500 Slog.e(TAG, "error in onVideoAvailable"); 501 } 502 } 503 } 504 505 @Override 506 public void onVideoUnavailable(int reason) { 507 synchronized (mLock) { 508 if (DEBUG) { 509 Slog.d(TAG, "onVideoUnavailable(" + reason + ")"); 510 } 511 if (sessionState.mSession == null || sessionState.mClient == null) { 512 return; 513 } 514 try { 515 sessionState.mClient.onVideoUnavailable(reason, sessionState.mSeq); 516 } catch (RemoteException e) { 517 Slog.e(TAG, "error in onVideoUnavailable"); 518 } 519 } 520 } 521 522 @Override 523 public void onContentBlocked(String rating) { 524 synchronized (mLock) { 525 if (DEBUG) { 526 Slog.d(TAG, "onContentBlocked()"); 527 } 528 if (sessionState.mSession == null || sessionState.mClient == null) { 529 return; 530 } 531 try { 532 sessionState.mClient.onContentBlocked(rating, sessionState.mSeq); 533 } catch (RemoteException e) { 534 Slog.e(TAG, "error in onContentBlocked"); 535 } 536 } 537 } 538 539 @Override 540 public void onSessionEvent(String eventType, Bundle eventArgs) { 541 synchronized (mLock) { 542 if (DEBUG) { 543 Slog.d(TAG, "onEvent(what=" + eventType + ", data=" + eventArgs + ")"); 544 } 545 if (sessionState.mSession == null || sessionState.mClient == null) { 546 return; 547 } 548 try { 549 sessionState.mClient.onSessionEvent(eventType, eventArgs, 550 sessionState.mSeq); 551 } catch (RemoteException e) { 552 Slog.e(TAG, "error in onSessionEvent"); 553 } 554 } 555 } 556 }; 557 558 // Create a session. When failed, send a null token immediately. 559 try { 560 service.createSession(channels[1], callback); 561 } catch (RemoteException e) { 562 Slog.e(TAG, "error in createSession", e); 563 removeSessionStateLocked(sessionToken, userId); 564 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInputId, null, null, 565 sessionState.mSeq); 566 } 567 channels[1].dispose(); 568 } 569 570 private void sendSessionTokenToClientLocked(ITvInputClient client, String inputId, 571 IBinder sessionToken, InputChannel channel, int seq) { 572 try { 573 client.onSessionCreated(inputId, sessionToken, channel, seq); 574 } catch (RemoteException exception) { 575 Slog.e(TAG, "error in onSessionCreated", exception); 576 } 577 } 578 579 private void releaseSessionLocked(IBinder sessionToken, int callingUid, int userId) { 580 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 581 if (sessionState.mSession != null) { 582 try { 583 sessionState.mSession.release(); 584 } catch (RemoteException e) { 585 Slog.w(TAG, "session is already disapeared", e); 586 } 587 sessionState.mSession = null; 588 } 589 removeSessionStateLocked(sessionToken, userId); 590 } 591 592 private void removeSessionStateLocked(IBinder sessionToken, int userId) { 593 // Remove the session state from the global session state map of the current user. 594 UserState userState = getUserStateLocked(userId); 595 SessionState sessionState = userState.sessionStateMap.remove(sessionToken); 596 597 // Close the open log entry, if any. 598 if (sessionState.mLogUri != null) { 599 SomeArgs args = SomeArgs.obtain(); 600 args.arg1 = sessionState.mLogUri; 601 args.arg2 = System.currentTimeMillis(); 602 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args).sendToTarget(); 603 } 604 605 // Also remove the session token from the session token list of the current client and 606 // service. 607 ClientState clientState = userState.clientStateMap.get(sessionState.mClient.asBinder()); 608 if (clientState != null) { 609 clientState.mSessionTokens.remove(sessionToken); 610 if (clientState.isEmpty()) { 611 userState.clientStateMap.remove(sessionState.mClient.asBinder()); 612 } 613 } 614 615 ServiceState serviceState = userState.serviceStateMap.get(sessionState.mInputId); 616 if (serviceState != null) { 617 serviceState.mSessionTokens.remove(sessionToken); 618 } 619 updateServiceConnectionLocked(sessionState.mInputId, userId); 620 } 621 622 private void unregisterClientInternalLocked(IBinder clientToken, String inputId, 623 int userId) { 624 UserState userState = getUserStateLocked(userId); 625 ClientState clientState = userState.clientStateMap.get(clientToken); 626 if (clientState != null) { 627 clientState.mInputIds.remove(inputId); 628 if (clientState.isEmpty()) { 629 userState.clientStateMap.remove(clientToken); 630 } 631 } 632 633 ServiceState serviceState = userState.serviceStateMap.get(inputId); 634 if (serviceState == null) { 635 return; 636 } 637 638 // Remove this client from the client list and unregister the callback. 639 serviceState.mClientTokens.remove(clientToken); 640 if (!serviceState.mClientTokens.isEmpty()) { 641 // We have other clients who want to keep the callback. Do this later. 642 return; 643 } 644 if (serviceState.mService == null || serviceState.mCallback == null) { 645 return; 646 } 647 try { 648 serviceState.mService.unregisterCallback(serviceState.mCallback); 649 } catch (RemoteException e) { 650 Slog.e(TAG, "error in unregisterCallback", e); 651 } finally { 652 serviceState.mCallback = null; 653 updateServiceConnectionLocked(inputId, userId); 654 } 655 } 656 657 private void notifyStateChangedLocked(UserState userState, String inputId, 658 int state, ITvInputManagerCallback targetCallback) { 659 if (DEBUG) { 660 Slog.d(TAG, "notifyStateChangedLocked: inputId = " + inputId 661 + "; state = " + state); 662 } 663 if (targetCallback == null) { 664 for (ITvInputManagerCallback callback : userState.callbackSet) { 665 try { 666 callback.onInputStateChanged(inputId, state); 667 } catch (RemoteException e) { 668 Slog.e(TAG, "Failed to report state change to callback."); 669 } 670 } 671 } else { 672 try { 673 targetCallback.onInputStateChanged(inputId, state); 674 } catch (RemoteException e) { 675 Slog.e(TAG, "Failed to report state change to callback."); 676 } 677 } 678 } 679 680 private void setStateLocked(String inputId, int state, int userId) { 681 UserState userState = getUserStateLocked(userId); 682 TvInputState inputState = userState.inputMap.get(inputId); 683 ServiceState serviceState = userState.serviceStateMap.get(inputId); 684 int oldState = inputState.mState; 685 inputState.mState = state; 686 boolean isStateEmpty = serviceState.mClientTokens.isEmpty() 687 && serviceState.mSessionTokens.isEmpty(); 688 if (serviceState != null && serviceState.mService == null && !isStateEmpty) { 689 // We don't notify state change while reconnecting. It should remain disconnected. 690 return; 691 } 692 if (oldState != state) { 693 notifyStateChangedLocked(userState, inputId, state, null); 694 } 695 } 696 697 private final class BinderService extends ITvInputManager.Stub { 698 @Override 699 public List<TvInputInfo> getTvInputList(int userId) { 700 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 701 Binder.getCallingUid(), userId, "getTvInputList"); 702 final long identity = Binder.clearCallingIdentity(); 703 try { 704 synchronized (mLock) { 705 UserState userState = getUserStateLocked(resolvedUserId); 706 List<TvInputInfo> inputList = new ArrayList<TvInputInfo>(); 707 for (TvInputState state : userState.inputMap.values()) { 708 inputList.add(state.mInfo); 709 } 710 return inputList; 711 } 712 } finally { 713 Binder.restoreCallingIdentity(identity); 714 } 715 } 716 717 @Override 718 public void registerCallback(final ITvInputManagerCallback callback, int userId) { 719 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 720 Binder.getCallingUid(), userId, "registerCallback"); 721 final long identity = Binder.clearCallingIdentity(); 722 try { 723 synchronized (mLock) { 724 UserState userState = getUserStateLocked(resolvedUserId); 725 userState.callbackSet.add(callback); 726 for (TvInputState state : userState.inputMap.values()) { 727 notifyStateChangedLocked(userState, state.mInfo.getId(), 728 state.mState, callback); 729 } 730 } 731 } finally { 732 Binder.restoreCallingIdentity(identity); 733 } 734 } 735 736 @Override 737 public void unregisterCallback(ITvInputManagerCallback callback, int userId) { 738 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 739 Binder.getCallingUid(), userId, "unregisterCallback"); 740 final long identity = Binder.clearCallingIdentity(); 741 try { 742 synchronized (mLock) { 743 UserState userState = getUserStateLocked(resolvedUserId); 744 userState.callbackSet.remove(callback); 745 } 746 } finally { 747 Binder.restoreCallingIdentity(identity); 748 } 749 } 750 751 @Override 752 public void createSession(final ITvInputClient client, final String inputId, 753 int seq, int userId) { 754 final int callingUid = Binder.getCallingUid(); 755 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 756 userId, "createSession"); 757 final long identity = Binder.clearCallingIdentity(); 758 try { 759 synchronized (mLock) { 760 UserState userState = getUserStateLocked(resolvedUserId); 761 ServiceState serviceState = userState.serviceStateMap.get(inputId); 762 if (serviceState == null) { 763 serviceState = new ServiceState( 764 userState.inputMap.get(inputId).mInfo, resolvedUserId); 765 userState.serviceStateMap.put(inputId, serviceState); 766 } 767 // Send a null token immediately while reconnecting. 768 if (serviceState.mReconnecting == true) { 769 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 770 return; 771 } 772 773 // Create a new session token and a session state. 774 IBinder sessionToken = new Binder(); 775 SessionState sessionState = new SessionState(sessionToken, inputId, client, 776 seq, callingUid, resolvedUserId); 777 778 // Add them to the global session state map of the current user. 779 userState.sessionStateMap.put(sessionToken, sessionState); 780 781 // Also, add them to the session state map of the current service. 782 serviceState.mSessionTokens.add(sessionToken); 783 784 if (serviceState.mService != null) { 785 createSessionInternalLocked(serviceState.mService, sessionToken, 786 resolvedUserId); 787 } else { 788 updateServiceConnectionLocked(inputId, resolvedUserId); 789 } 790 } 791 } finally { 792 Binder.restoreCallingIdentity(identity); 793 } 794 } 795 796 @Override 797 public void releaseSession(IBinder sessionToken, int userId) { 798 final int callingUid = Binder.getCallingUid(); 799 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 800 userId, "releaseSession"); 801 final long identity = Binder.clearCallingIdentity(); 802 try { 803 synchronized (mLock) { 804 releaseSessionLocked(sessionToken, callingUid, resolvedUserId); 805 } 806 } finally { 807 Binder.restoreCallingIdentity(identity); 808 } 809 } 810 811 @Override 812 public void setSurface(IBinder sessionToken, Surface surface, int userId) { 813 final int callingUid = Binder.getCallingUid(); 814 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 815 userId, "setSurface"); 816 final long identity = Binder.clearCallingIdentity(); 817 try { 818 synchronized (mLock) { 819 try { 820 getSessionLocked(sessionToken, callingUid, resolvedUserId).setSurface( 821 surface); 822 } catch (RemoteException e) { 823 Slog.e(TAG, "error in setSurface", e); 824 } 825 } 826 } finally { 827 if (surface != null) { 828 // surface is not used in TvInputManagerService. 829 surface.release(); 830 } 831 Binder.restoreCallingIdentity(identity); 832 } 833 } 834 835 @Override 836 public void setVolume(IBinder sessionToken, float volume, int userId) { 837 final int callingUid = Binder.getCallingUid(); 838 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 839 userId, "setVolume"); 840 final long identity = Binder.clearCallingIdentity(); 841 try { 842 synchronized (mLock) { 843 try { 844 getSessionLocked(sessionToken, callingUid, resolvedUserId).setVolume( 845 volume); 846 } catch (RemoteException e) { 847 Slog.e(TAG, "error in setVolume", e); 848 } 849 } 850 } finally { 851 Binder.restoreCallingIdentity(identity); 852 } 853 } 854 855 @Override 856 public void tune(IBinder sessionToken, final Uri channelUri, int userId) { 857 final int callingUid = Binder.getCallingUid(); 858 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 859 userId, "tune"); 860 final long identity = Binder.clearCallingIdentity(); 861 try { 862 synchronized (mLock) { 863 try { 864 getSessionLocked(sessionToken, callingUid, resolvedUserId).tune(channelUri); 865 866 long currentTime = System.currentTimeMillis(); 867 long channelId = ContentUris.parseId(channelUri); 868 869 // Close the open log entry first, if any. 870 UserState userState = getUserStateLocked(resolvedUserId); 871 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 872 if (sessionState.mLogUri != null) { 873 SomeArgs args = SomeArgs.obtain(); 874 args.arg1 = sessionState.mLogUri; 875 args.arg2 = currentTime; 876 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args) 877 .sendToTarget(); 878 } 879 880 // Create a log entry and fill it later. 881 String packageName = userState.inputMap.get(sessionState.mInputId).mInfo 882 .getServiceInfo().packageName; 883 ContentValues values = new ContentValues(); 884 values.put(TvContract.WatchedPrograms.COLUMN_PACKAGE_NAME, packageName); 885 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 886 currentTime); 887 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 0); 888 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 889 890 sessionState.mLogUri = mContentResolver.insert( 891 TvContract.WatchedPrograms.CONTENT_URI, values); 892 SomeArgs args = SomeArgs.obtain(); 893 args.arg1 = sessionState.mLogUri; 894 args.arg2 = ContentUris.parseId(channelUri); 895 args.arg3 = currentTime; 896 mLogHandler.obtainMessage(LogHandler.MSG_OPEN_ENTRY, args).sendToTarget(); 897 } catch (RemoteException e) { 898 Slog.e(TAG, "error in tune", e); 899 return; 900 } 901 } 902 } finally { 903 Binder.restoreCallingIdentity(identity); 904 } 905 } 906 907 @Override 908 public void setCaptionEnabled(IBinder sessionToken, boolean enabled, int userId) { 909 final int callingUid = Binder.getCallingUid(); 910 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 911 userId, "setCaptionEnabled"); 912 final long identity = Binder.clearCallingIdentity(); 913 try { 914 synchronized (mLock) { 915 try { 916 getSessionLocked(sessionToken, callingUid, resolvedUserId) 917 .setCaptionEnabled(enabled); 918 } catch (RemoteException e) { 919 Slog.e(TAG, "error in setCaptionEnabled", e); 920 } 921 } 922 } finally { 923 Binder.restoreCallingIdentity(identity); 924 } 925 } 926 927 @Override 928 public void selectTrack(IBinder sessionToken, TvTrackInfo track, int userId) { 929 final int callingUid = Binder.getCallingUid(); 930 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 931 userId, "selectTrack"); 932 final long identity = Binder.clearCallingIdentity(); 933 try { 934 synchronized (mLock) { 935 try { 936 getSessionLocked(sessionToken, callingUid, resolvedUserId).selectTrack( 937 track); 938 } catch (RemoteException e) { 939 Slog.e(TAG, "error in selectTrack", e); 940 } 941 } 942 } finally { 943 Binder.restoreCallingIdentity(identity); 944 } 945 } 946 947 @Override 948 public void unselectTrack(IBinder sessionToken, TvTrackInfo track, int userId) { 949 final int callingUid = Binder.getCallingUid(); 950 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 951 userId, "unselectTrack"); 952 final long identity = Binder.clearCallingIdentity(); 953 try { 954 synchronized (mLock) { 955 try { 956 getSessionLocked(sessionToken, callingUid, resolvedUserId).unselectTrack( 957 track); 958 } catch (RemoteException e) { 959 Slog.e(TAG, "error in unselectTrack", e); 960 } 961 } 962 } finally { 963 Binder.restoreCallingIdentity(identity); 964 } 965 } 966 967 @Override 968 public void createOverlayView(IBinder sessionToken, IBinder windowToken, Rect frame, 969 int userId) { 970 final int callingUid = Binder.getCallingUid(); 971 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 972 userId, "createOverlayView"); 973 final long identity = Binder.clearCallingIdentity(); 974 try { 975 synchronized (mLock) { 976 try { 977 getSessionLocked(sessionToken, callingUid, resolvedUserId) 978 .createOverlayView(windowToken, frame); 979 } catch (RemoteException e) { 980 Slog.e(TAG, "error in createOverlayView", e); 981 } 982 } 983 } finally { 984 Binder.restoreCallingIdentity(identity); 985 } 986 } 987 988 @Override 989 public void relayoutOverlayView(IBinder sessionToken, Rect frame, int userId) { 990 final int callingUid = Binder.getCallingUid(); 991 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 992 userId, "relayoutOverlayView"); 993 final long identity = Binder.clearCallingIdentity(); 994 try { 995 synchronized (mLock) { 996 try { 997 getSessionLocked(sessionToken, callingUid, resolvedUserId) 998 .relayoutOverlayView(frame); 999 } catch (RemoteException e) { 1000 Slog.e(TAG, "error in relayoutOverlayView", e); 1001 } 1002 } 1003 } finally { 1004 Binder.restoreCallingIdentity(identity); 1005 } 1006 } 1007 1008 @Override 1009 public void removeOverlayView(IBinder sessionToken, int userId) { 1010 final int callingUid = Binder.getCallingUid(); 1011 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1012 userId, "removeOverlayView"); 1013 final long identity = Binder.clearCallingIdentity(); 1014 try { 1015 synchronized (mLock) { 1016 try { 1017 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1018 .removeOverlayView(); 1019 } catch (RemoteException e) { 1020 Slog.e(TAG, "error in removeOverlayView", e); 1021 } 1022 } 1023 } finally { 1024 Binder.restoreCallingIdentity(identity); 1025 } 1026 } 1027 1028 @Override 1029 public List<TvInputHardwareInfo> getHardwareList() throws RemoteException { 1030 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1031 != PackageManager.PERMISSION_GRANTED) { 1032 return null; 1033 } 1034 1035 final long identity = Binder.clearCallingIdentity(); 1036 try { 1037 return mTvInputHardwareManager.getHardwareList(); 1038 } finally { 1039 Binder.restoreCallingIdentity(identity); 1040 } 1041 } 1042 1043 @Override 1044 public void registerTvInputInfo(TvInputInfo info, int deviceId) { 1045 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1046 != PackageManager.PERMISSION_GRANTED) { 1047 return; 1048 } 1049 1050 final long identity = Binder.clearCallingIdentity(); 1051 try { 1052 mTvInputHardwareManager.registerTvInputInfo(info, deviceId); 1053 } finally { 1054 Binder.restoreCallingIdentity(identity); 1055 } 1056 } 1057 1058 @Override 1059 public ITvInputHardware acquireTvInputHardware(int deviceId, 1060 ITvInputHardwareCallback callback, TvInputInfo info, int userId) 1061 throws RemoteException { 1062 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1063 != PackageManager.PERMISSION_GRANTED) { 1064 return null; 1065 } 1066 1067 final long identity = Binder.clearCallingIdentity(); 1068 final int callingUid = Binder.getCallingUid(); 1069 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1070 userId, "acquireTvInputHardware"); 1071 try { 1072 return mTvInputHardwareManager.acquireHardware( 1073 deviceId, callback, info, callingUid, resolvedUserId); 1074 } finally { 1075 Binder.restoreCallingIdentity(identity); 1076 } 1077 } 1078 1079 @Override 1080 public void releaseTvInputHardware(int deviceId, ITvInputHardware hardware, int userId) 1081 throws RemoteException { 1082 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1083 != PackageManager.PERMISSION_GRANTED) { 1084 return; 1085 } 1086 1087 final long identity = Binder.clearCallingIdentity(); 1088 final int callingUid = Binder.getCallingUid(); 1089 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1090 userId, "releaseTvInputHardware"); 1091 try { 1092 mTvInputHardwareManager.releaseHardware( 1093 deviceId, hardware, callingUid, resolvedUserId); 1094 } finally { 1095 Binder.restoreCallingIdentity(identity); 1096 } 1097 } 1098 1099 @Override 1100 @SuppressWarnings("resource") 1101 protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) { 1102 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1103 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 1104 != PackageManager.PERMISSION_GRANTED) { 1105 pw.println("Permission Denial: can't dump TvInputManager from pid=" 1106 + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); 1107 return; 1108 } 1109 1110 synchronized (mLock) { 1111 pw.println("User Ids (Current user: " + mCurrentUserId + "):"); 1112 pw.increaseIndent(); 1113 for (int i = 0; i < mUserStates.size(); i++) { 1114 int userId = mUserStates.keyAt(i); 1115 pw.println(Integer.valueOf(userId)); 1116 } 1117 pw.decreaseIndent(); 1118 1119 for (int i = 0; i < mUserStates.size(); i++) { 1120 int userId = mUserStates.keyAt(i); 1121 UserState userState = getUserStateLocked(userId); 1122 pw.println("UserState (" + userId + "):"); 1123 pw.increaseIndent(); 1124 1125 pw.println("inputMap: inputId -> TvInputState"); 1126 pw.increaseIndent(); 1127 for (TvInputState state : userState.inputMap.values()) { 1128 pw.println(state.toString()); 1129 } 1130 pw.decreaseIndent(); 1131 1132 pw.println("packageSet:"); 1133 pw.increaseIndent(); 1134 for (String packageName : userState.packageSet) { 1135 pw.println(packageName); 1136 } 1137 pw.decreaseIndent(); 1138 1139 pw.println("clientStateMap: ITvInputClient -> ClientState"); 1140 pw.increaseIndent(); 1141 for (Map.Entry<IBinder, ClientState> entry : 1142 userState.clientStateMap.entrySet()) { 1143 ClientState client = entry.getValue(); 1144 pw.println(entry.getKey() + ": " + client); 1145 1146 pw.increaseIndent(); 1147 1148 pw.println("mInputIds:"); 1149 pw.increaseIndent(); 1150 for (String inputId : client.mInputIds) { 1151 pw.println(inputId); 1152 } 1153 pw.decreaseIndent(); 1154 1155 pw.println("mSessionTokens:"); 1156 pw.increaseIndent(); 1157 for (IBinder token : client.mSessionTokens) { 1158 pw.println("" + token); 1159 } 1160 pw.decreaseIndent(); 1161 1162 pw.println("mClientTokens: " + client.mClientToken); 1163 pw.println("mUserId: " + client.mUserId); 1164 1165 pw.decreaseIndent(); 1166 } 1167 pw.decreaseIndent(); 1168 1169 pw.println("serviceStateMap: inputId -> ServiceState"); 1170 pw.increaseIndent(); 1171 for (Map.Entry<String, ServiceState> entry : 1172 userState.serviceStateMap.entrySet()) { 1173 ServiceState service = entry.getValue(); 1174 pw.println(entry.getKey() + ": " + service); 1175 1176 pw.increaseIndent(); 1177 1178 pw.println("mClientTokens:"); 1179 pw.increaseIndent(); 1180 for (IBinder token : service.mClientTokens) { 1181 pw.println("" + token); 1182 } 1183 pw.decreaseIndent(); 1184 1185 pw.println("mSessionTokens:"); 1186 pw.increaseIndent(); 1187 for (IBinder token : service.mSessionTokens) { 1188 pw.println("" + token); 1189 } 1190 pw.decreaseIndent(); 1191 1192 pw.println("mService: " + service.mService); 1193 pw.println("mCallback: " + service.mCallback); 1194 pw.println("mBound: " + service.mBound); 1195 pw.println("mReconnecting: " + service.mReconnecting); 1196 1197 pw.decreaseIndent(); 1198 } 1199 pw.decreaseIndent(); 1200 1201 pw.println("sessionStateMap: ITvInputSession -> SessionState"); 1202 pw.increaseIndent(); 1203 for (Map.Entry<IBinder, SessionState> entry : 1204 userState.sessionStateMap.entrySet()) { 1205 SessionState session = entry.getValue(); 1206 pw.println(entry.getKey() + ": " + session); 1207 1208 pw.increaseIndent(); 1209 pw.println("mInputId: " + session.mInputId); 1210 pw.println("mClient: " + session.mClient); 1211 pw.println("mSeq: " + session.mSeq); 1212 pw.println("mCallingUid: " + session.mCallingUid); 1213 pw.println("mUserId: " + session.mUserId); 1214 pw.println("mSessionToken: " + session.mSessionToken); 1215 pw.println("mSession: " + session.mSession); 1216 pw.println("mLogUri: " + session.mLogUri); 1217 pw.decreaseIndent(); 1218 } 1219 pw.decreaseIndent(); 1220 1221 pw.println("callbackSet:"); 1222 pw.increaseIndent(); 1223 for (ITvInputManagerCallback callback : userState.callbackSet) { 1224 pw.println(callback.toString()); 1225 } 1226 pw.decreaseIndent(); 1227 1228 pw.decreaseIndent(); 1229 } 1230 } 1231 } 1232 } 1233 1234 private static final class TvInputState { 1235 // A TvInputInfo object which represents the TV input. 1236 private TvInputInfo mInfo; 1237 1238 // The state of TV input. Connected by default. 1239 private int mState = INPUT_STATE_CONNECTED; 1240 1241 @Override 1242 public String toString() { 1243 return "mInfo: " + mInfo + "; mState: " + mState; 1244 } 1245 } 1246 1247 private static final class UserState { 1248 // A mapping from the TV input id to its TvInputState. 1249 private Map<String, TvInputState> inputMap = new HashMap<String, TvInputState>(); 1250 1251 // A set of all TV input packages. 1252 private final Set<String> packageSet = new HashSet<String>(); 1253 1254 // A mapping from the token of a client to its state. 1255 private final Map<IBinder, ClientState> clientStateMap = 1256 new HashMap<IBinder, ClientState>(); 1257 1258 // A mapping from the name of a TV input service to its state. 1259 private final Map<String, ServiceState> serviceStateMap = 1260 new HashMap<String, ServiceState>(); 1261 1262 // A mapping from the token of a TV input session to its state. 1263 private final Map<IBinder, SessionState> sessionStateMap = 1264 new HashMap<IBinder, SessionState>(); 1265 1266 // A set of callbacks. 1267 private final Set<ITvInputManagerCallback> callbackSet = 1268 new HashSet<ITvInputManagerCallback>(); 1269 } 1270 1271 private final class ClientState implements IBinder.DeathRecipient { 1272 private final List<String> mInputIds = new ArrayList<String>(); 1273 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1274 1275 private IBinder mClientToken; 1276 private final int mUserId; 1277 1278 ClientState(IBinder clientToken, int userId) { 1279 mClientToken = clientToken; 1280 mUserId = userId; 1281 } 1282 1283 public boolean isEmpty() { 1284 return mInputIds.isEmpty() && mSessionTokens.isEmpty(); 1285 } 1286 1287 @Override 1288 public void binderDied() { 1289 synchronized (mLock) { 1290 UserState userState = getUserStateLocked(mUserId); 1291 // DO NOT remove the client state of clientStateMap in this method. It will be 1292 // removed in releaseSessionLocked() or unregisterClientInternalLocked(). 1293 ClientState clientState = userState.clientStateMap.get(mClientToken); 1294 if (clientState != null) { 1295 while (clientState.mSessionTokens.size() > 0) { 1296 releaseSessionLocked( 1297 clientState.mSessionTokens.get(0), Process.SYSTEM_UID, mUserId); 1298 } 1299 while (clientState.mInputIds.size() > 0) { 1300 unregisterClientInternalLocked( 1301 mClientToken, clientState.mInputIds.get(0), mUserId); 1302 } 1303 } 1304 mClientToken = null; 1305 } 1306 } 1307 } 1308 1309 private final class ServiceState { 1310 private final List<IBinder> mClientTokens = new ArrayList<IBinder>(); 1311 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1312 private final ServiceConnection mConnection; 1313 private final TvInputInfo mTvInputInfo; 1314 1315 private ITvInputService mService; 1316 private ServiceCallback mCallback; 1317 private boolean mBound; 1318 private boolean mReconnecting; 1319 1320 private ServiceState(TvInputInfo inputInfo, int userId) { 1321 mTvInputInfo = inputInfo; 1322 mConnection = new InputServiceConnection(inputInfo, userId); 1323 } 1324 } 1325 1326 private final class SessionState implements IBinder.DeathRecipient { 1327 private final String mInputId; 1328 private final ITvInputClient mClient; 1329 private final int mSeq; 1330 private final int mCallingUid; 1331 private final int mUserId; 1332 private final IBinder mSessionToken; 1333 private ITvInputSession mSession; 1334 private Uri mLogUri; 1335 1336 private SessionState(IBinder sessionToken, String inputId, ITvInputClient client, int seq, 1337 int callingUid, int userId) { 1338 mSessionToken = sessionToken; 1339 mInputId = inputId; 1340 mClient = client; 1341 mSeq = seq; 1342 mCallingUid = callingUid; 1343 mUserId = userId; 1344 } 1345 1346 @Override 1347 public void binderDied() { 1348 synchronized (mLock) { 1349 mSession = null; 1350 if (mClient != null) { 1351 try { 1352 mClient.onSessionReleased(mSeq); 1353 } catch(RemoteException e) { 1354 Slog.e(TAG, "error in onSessionReleased", e); 1355 } 1356 } 1357 removeSessionStateLocked(mSessionToken, mUserId); 1358 } 1359 } 1360 } 1361 1362 private final class InputServiceConnection implements ServiceConnection { 1363 private final TvInputInfo mTvInputInfo; 1364 private final int mUserId; 1365 1366 private InputServiceConnection(TvInputInfo inputInfo, int userId) { 1367 mUserId = userId; 1368 mTvInputInfo = inputInfo; 1369 } 1370 1371 @Override 1372 public void onServiceConnected(ComponentName name, IBinder service) { 1373 String inputId = mTvInputInfo.getId(); 1374 if (DEBUG) { 1375 Slog.d(TAG, "onServiceConnected(inputId=" + inputId + ")"); 1376 } 1377 synchronized (mLock) { 1378 UserState userState = getUserStateLocked(mUserId); 1379 ServiceState serviceState = userState.serviceStateMap.get(inputId); 1380 serviceState.mService = ITvInputService.Stub.asInterface(service); 1381 1382 // Register a callback, if we need to. 1383 if (!serviceState.mClientTokens.isEmpty() && serviceState.mCallback == null) { 1384 serviceState.mCallback = new ServiceCallback(mTvInputInfo.getId(), mUserId); 1385 try { 1386 serviceState.mService.registerCallback(serviceState.mCallback); 1387 } catch (RemoteException e) { 1388 Slog.e(TAG, "error in registerCallback", e); 1389 } 1390 } 1391 1392 // And create sessions, if any. 1393 for (IBinder sessionToken : serviceState.mSessionTokens) { 1394 createSessionInternalLocked(serviceState.mService, sessionToken, mUserId); 1395 } 1396 1397 TvInputState inputState = userState.inputMap.get(inputId); 1398 if (inputState != null && inputState.mState != INPUT_STATE_DISCONNECTED) { 1399 notifyStateChangedLocked(userState, mTvInputInfo.getId(), 1400 inputState.mState, null); 1401 } 1402 } 1403 } 1404 1405 @Override 1406 public void onServiceDisconnected(ComponentName name) { 1407 if (DEBUG) { 1408 Slog.d(TAG, "onServiceDisconnected(inputId=" + mTvInputInfo.getId() + ")"); 1409 } 1410 if (!mTvInputInfo.getComponent().equals(name)) { 1411 throw new IllegalArgumentException("Mismatched ComponentName: " 1412 + mTvInputInfo.getComponent() + " (expected), " + name + " (actual)."); 1413 } 1414 synchronized (mLock) { 1415 UserState userState = getUserStateLocked(mUserId); 1416 ServiceState serviceState = userState.serviceStateMap.get(mTvInputInfo.getId()); 1417 if (serviceState != null) { 1418 serviceState.mReconnecting = true; 1419 serviceState.mBound = false; 1420 serviceState.mService = null; 1421 serviceState.mCallback = null; 1422 1423 // Send null tokens for not finishing create session events. 1424 for (IBinder sessionToken : serviceState.mSessionTokens) { 1425 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1426 if (sessionState.mSession == null) { 1427 removeSessionStateLocked(sessionToken, sessionState.mUserId); 1428 sendSessionTokenToClientLocked(sessionState.mClient, 1429 sessionState.mInputId, null, null, sessionState.mSeq); 1430 } 1431 } 1432 1433 notifyStateChangedLocked(userState, mTvInputInfo.getId(), 1434 INPUT_STATE_DISCONNECTED, null); 1435 updateServiceConnectionLocked(mTvInputInfo.getId(), mUserId); 1436 } 1437 } 1438 } 1439 } 1440 1441 private final class ServiceCallback extends ITvInputServiceCallback.Stub { 1442 private final String mInputId; 1443 private final int mUserId; 1444 1445 ServiceCallback(String inputId, int userId) { 1446 mInputId = inputId; 1447 mUserId = userId; 1448 } 1449 1450 @Override 1451 public void onInputStateChanged(int state) { 1452 if (DEBUG) { 1453 Slog.d(TAG, "onInputStateChanged(inputId=" + mInputId + ", state=" 1454 + state + ")"); 1455 } 1456 synchronized (mLock) { 1457 setStateLocked(mInputId, state, mUserId); 1458 } 1459 } 1460 } 1461 1462 private final class LogHandler extends Handler { 1463 private static final int MSG_OPEN_ENTRY = 1; 1464 private static final int MSG_UPDATE_ENTRY = 2; 1465 private static final int MSG_CLOSE_ENTRY = 3; 1466 1467 public LogHandler(Looper looper) { 1468 super(looper); 1469 } 1470 1471 @Override 1472 public void handleMessage(Message msg) { 1473 switch (msg.what) { 1474 case MSG_OPEN_ENTRY: { 1475 SomeArgs args = (SomeArgs) msg.obj; 1476 Uri uri = (Uri) args.arg1; 1477 long channelId = (long) args.arg2; 1478 long time = (long) args.arg3; 1479 onOpenEntry(uri, channelId, time); 1480 args.recycle(); 1481 return; 1482 } 1483 case MSG_UPDATE_ENTRY: { 1484 SomeArgs args = (SomeArgs) msg.obj; 1485 Uri uri = (Uri) args.arg1; 1486 long channelId = (long) args.arg2; 1487 long time = (long) args.arg3; 1488 onUpdateEntry(uri, channelId, time); 1489 args.recycle(); 1490 return; 1491 } 1492 case MSG_CLOSE_ENTRY: { 1493 SomeArgs args = (SomeArgs) msg.obj; 1494 Uri uri = (Uri) args.arg1; 1495 long time = (long) args.arg2; 1496 onCloseEntry(uri, time); 1497 args.recycle(); 1498 return; 1499 } 1500 default: { 1501 Slog.w(TAG, "Unhandled message code: " + msg.what); 1502 return; 1503 } 1504 } 1505 } 1506 1507 private void onOpenEntry(Uri uri, long channelId, long watchStarttime) { 1508 String[] projection = { 1509 TvContract.Programs.COLUMN_TITLE, 1510 TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS, 1511 TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS, 1512 TvContract.Programs.COLUMN_SHORT_DESCRIPTION 1513 }; 1514 String selection = TvContract.Programs.COLUMN_CHANNEL_ID + "=? AND " 1515 + TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + "<=? AND " 1516 + TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS + ">?"; 1517 String[] selectionArgs = { 1518 String.valueOf(channelId), 1519 String.valueOf(watchStarttime), 1520 String.valueOf(watchStarttime) 1521 }; 1522 String sortOrder = TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + " ASC"; 1523 Cursor cursor = null; 1524 try { 1525 cursor = mContentResolver.query(TvContract.Programs.CONTENT_URI, projection, 1526 selection, selectionArgs, sortOrder); 1527 if (cursor != null && cursor.moveToNext()) { 1528 ContentValues values = new ContentValues(); 1529 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, cursor.getString(0)); 1530 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1531 cursor.getLong(1)); 1532 long endTime = cursor.getLong(2); 1533 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1534 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, cursor.getString(3)); 1535 mContentResolver.update(uri, values, null, null); 1536 1537 // Schedule an update when the current program ends. 1538 SomeArgs args = SomeArgs.obtain(); 1539 args.arg1 = uri; 1540 args.arg2 = channelId; 1541 args.arg3 = endTime; 1542 Message msg = obtainMessage(LogHandler.MSG_UPDATE_ENTRY, args); 1543 sendMessageDelayed(msg, endTime - System.currentTimeMillis()); 1544 } 1545 } finally { 1546 if (cursor != null) { 1547 cursor.close(); 1548 } 1549 } 1550 } 1551 1552 private void onUpdateEntry(Uri uri, long channelId, long time) { 1553 String[] projection = { 1554 TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1555 TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 1556 TvContract.WatchedPrograms.COLUMN_TITLE, 1557 TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1558 TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, 1559 TvContract.WatchedPrograms.COLUMN_DESCRIPTION 1560 }; 1561 Cursor cursor = null; 1562 try { 1563 cursor = mContentResolver.query(uri, projection, null, null, null); 1564 if (cursor != null && cursor.moveToNext()) { 1565 long watchStartTime = cursor.getLong(0); 1566 long watchEndTime = cursor.getLong(1); 1567 String title = cursor.getString(2); 1568 long startTime = cursor.getLong(3); 1569 long endTime = cursor.getLong(4); 1570 String description = cursor.getString(5); 1571 1572 // Do nothing if the current log entry is already closed. 1573 if (watchEndTime > 0) { 1574 return; 1575 } 1576 1577 // The current program has just ended. Create a (complete) log entry off the 1578 // current entry. 1579 ContentValues values = new ContentValues(); 1580 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1581 watchStartTime); 1582 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, time); 1583 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 1584 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, title); 1585 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, startTime); 1586 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1587 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, description); 1588 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 1589 } 1590 } finally { 1591 if (cursor != null) { 1592 cursor.close(); 1593 } 1594 } 1595 // Re-open the current log entry with the next program information. 1596 onOpenEntry(uri, channelId, time); 1597 } 1598 1599 private void onCloseEntry(Uri uri, long watchEndTime) { 1600 ContentValues values = new ContentValues(); 1601 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, watchEndTime); 1602 mContentResolver.update(uri, values, null, null); 1603 } 1604 } 1605 1606 final class Client { 1607 public void setState(String inputId, int state) { 1608 synchronized (mLock) { 1609 setStateLocked(inputId, state, mCurrentUserId); 1610 } 1611 } 1612 } 1613} 1614