TvInputManagerService.java revision 187423c0bc4b27479bc8c23bd86969429094b296
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.hardware.hdmi.HdmiCecDeviceInfo; 41import android.media.tv.ITvInputClient; 42import android.media.tv.ITvInputHardware; 43import android.media.tv.ITvInputHardwareCallback; 44import android.media.tv.ITvInputManager; 45import android.media.tv.ITvInputManagerCallback; 46import android.media.tv.ITvInputService; 47import android.media.tv.ITvInputServiceCallback; 48import android.media.tv.ITvInputSession; 49import android.media.tv.ITvInputSessionCallback; 50import android.media.tv.TvContract; 51import android.media.tv.TvInputHardwareInfo; 52import android.media.tv.TvInputInfo; 53import android.media.tv.TvInputService; 54import android.media.tv.TvTrackInfo; 55import android.net.Uri; 56import android.os.Binder; 57import android.os.Bundle; 58import android.os.Handler; 59import android.os.IBinder; 60import android.os.Looper; 61import android.os.Message; 62import android.os.Process; 63import android.os.RemoteException; 64import android.os.UserHandle; 65import android.util.Slog; 66import android.util.SparseArray; 67import android.view.InputChannel; 68import android.view.Surface; 69 70import com.android.internal.content.PackageMonitor; 71import com.android.internal.os.SomeArgs; 72import com.android.internal.util.IndentingPrintWriter; 73import com.android.server.IoThread; 74import com.android.server.SystemService; 75 76import org.xmlpull.v1.XmlPullParserException; 77 78import java.io.FileDescriptor; 79import java.io.IOException; 80import java.io.PrintWriter; 81import java.util.ArrayList; 82import java.util.HashMap; 83import java.util.HashSet; 84import java.util.Iterator; 85import java.util.List; 86import java.util.Map; 87import java.util.Set; 88 89/** This class provides a system service that manages television inputs. */ 90public final class TvInputManagerService extends SystemService { 91 // STOPSHIP: Turn debugging off. 92 private static final boolean DEBUG = true; 93 private static final String TAG = "TvInputManagerService"; 94 95 private final Context mContext; 96 private final TvInputHardwareManager mTvInputHardwareManager; 97 98 private final ContentResolver mContentResolver; 99 100 // A global lock. 101 private final Object mLock = new Object(); 102 103 // ID of the current user. 104 private int mCurrentUserId = UserHandle.USER_OWNER; 105 106 // A map from user id to UserState. 107 private final SparseArray<UserState> mUserStates = new SparseArray<UserState>(); 108 109 private final Handler mLogHandler; 110 111 public TvInputManagerService(Context context) { 112 super(context); 113 114 mContext = context; 115 mContentResolver = context.getContentResolver(); 116 mLogHandler = new LogHandler(IoThread.get().getLooper()); 117 118 mTvInputHardwareManager = new TvInputHardwareManager(context, new HardwareListener()); 119 120 synchronized (mLock) { 121 mUserStates.put(mCurrentUserId, new UserState()); 122 } 123 } 124 125 @Override 126 public void onStart() { 127 publishBinderService(Context.TV_INPUT_SERVICE, new BinderService()); 128 } 129 130 @Override 131 public void onBootPhase(int phase) { 132 if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { 133 registerBroadcastReceivers(); 134 } else if (phase == SystemService.PHASE_THIRD_PARTY_APPS_CAN_START) { 135 synchronized (mLock) { 136 buildTvInputListLocked(mCurrentUserId); 137 } 138 } 139 mTvInputHardwareManager.onBootPhase(phase); 140 } 141 142 private void registerBroadcastReceivers() { 143 PackageMonitor monitor = new PackageMonitor() { 144 @Override 145 public void onSomePackagesChanged() { 146 synchronized (mLock) { 147 buildTvInputListLocked(mCurrentUserId); 148 } 149 } 150 151 @Override 152 public void onPackageRemoved(String packageName, int uid) { 153 synchronized (mLock) { 154 UserState userState = getUserStateLocked(mCurrentUserId); 155 if (!userState.packageSet.contains(packageName)) { 156 // Not a TV input package. 157 return; 158 } 159 } 160 161 ArrayList<ContentProviderOperation> operations = 162 new ArrayList<ContentProviderOperation>(); 163 164 String selection = TvContract.BaseTvColumns.COLUMN_PACKAGE_NAME + "=?"; 165 String[] selectionArgs = { packageName }; 166 167 operations.add(ContentProviderOperation.newDelete(TvContract.Channels.CONTENT_URI) 168 .withSelection(selection, selectionArgs).build()); 169 operations.add(ContentProviderOperation.newDelete(TvContract.Programs.CONTENT_URI) 170 .withSelection(selection, selectionArgs).build()); 171 operations.add(ContentProviderOperation 172 .newDelete(TvContract.WatchedPrograms.CONTENT_URI) 173 .withSelection(selection, selectionArgs).build()); 174 175 ContentProviderResult[] results = null; 176 try { 177 results = mContentResolver.applyBatch(TvContract.AUTHORITY, operations); 178 } catch (RemoteException | OperationApplicationException e) { 179 Slog.e(TAG, "error in applyBatch" + e); 180 } 181 182 if (DEBUG) { 183 Slog.d(TAG, "onPackageRemoved(packageName=" + packageName + ", uid=" + uid 184 + ")"); 185 Slog.d(TAG, "results=" + results); 186 } 187 } 188 }; 189 monitor.register(mContext, null, UserHandle.ALL, true); 190 191 IntentFilter intentFilter = new IntentFilter(); 192 intentFilter.addAction(Intent.ACTION_USER_SWITCHED); 193 intentFilter.addAction(Intent.ACTION_USER_REMOVED); 194 mContext.registerReceiverAsUser(new BroadcastReceiver() { 195 @Override 196 public void onReceive(Context context, Intent intent) { 197 String action = intent.getAction(); 198 if (Intent.ACTION_USER_SWITCHED.equals(action)) { 199 switchUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 200 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 201 removeUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 202 } 203 } 204 }, UserHandle.ALL, intentFilter, null, null); 205 } 206 207 private static boolean hasHardwarePermission(PackageManager pm, ComponentName name) { 208 return pm.checkPermission(android.Manifest.permission.TV_INPUT_HARDWARE, 209 name.getPackageName()) == PackageManager.PERMISSION_GRANTED; 210 } 211 212 private void buildTvInputListLocked(int userId) { 213 UserState userState = getUserStateLocked(userId); 214 215 Map<String, TvInputState> oldInputMap = userState.inputMap; 216 userState.inputMap = new HashMap<String, TvInputState>(); 217 218 userState.packageSet.clear(); 219 220 if (DEBUG) Slog.d(TAG, "buildTvInputList"); 221 PackageManager pm = mContext.getPackageManager(); 222 List<ResolveInfo> services = pm.queryIntentServices( 223 new Intent(TvInputService.SERVICE_INTERFACE), 224 PackageManager.GET_SERVICES | PackageManager.GET_META_DATA); 225 List<TvInputInfo> infoList = new ArrayList<TvInputInfo>(); 226 for (ResolveInfo ri : services) { 227 ServiceInfo si = ri.serviceInfo; 228 if (!android.Manifest.permission.BIND_TV_INPUT.equals(si.permission)) { 229 Slog.w(TAG, "Skipping TV input " + si.name + ": it does not require the permission " 230 + android.Manifest.permission.BIND_TV_INPUT); 231 continue; 232 } 233 try { 234 infoList.clear(); 235 ComponentName service = new ComponentName(si.packageName, si.name); 236 if (hasHardwarePermission(pm, service)) { 237 ServiceState serviceState = userState.serviceStateMap.get(service); 238 if (serviceState == null) { 239 // We see this hardware TV input service for the first time; we need to 240 // prepare the ServiceState object so that we can connect to the service and 241 // let it add TvInputInfo objects to mInputList if there's any. 242 serviceState = new ServiceState(service, userId); 243 userState.serviceStateMap.put(service, serviceState); 244 } else { 245 infoList.addAll(serviceState.mInputList); 246 } 247 } else { 248 infoList.add(TvInputInfo.createTvInputInfo(mContext, ri)); 249 } 250 251 for (TvInputInfo info : infoList) { 252 if (DEBUG) Slog.d(TAG, "add " + info.getId()); 253 TvInputState state = oldInputMap.get(info.getId()); 254 if (state == null) { 255 state = new TvInputState(); 256 } 257 userState.inputMap.put(info.getId(), state); 258 state.mInfo = info; 259 } 260 261 // Reconnect the service if existing input is updated. 262 updateServiceConnectionLocked(service, userId); 263 264 userState.packageSet.add(si.packageName); 265 } catch (IOException | XmlPullParserException e) { 266 Slog.e(TAG, "Can't load TV input " + si.name, e); 267 } 268 } 269 oldInputMap.clear(); 270 } 271 272 private void switchUser(int userId) { 273 synchronized (mLock) { 274 if (mCurrentUserId == userId) { 275 return; 276 } 277 // final int oldUserId = mCurrentUserId; 278 // TODO: Release services and sessions in the old user state, if needed. 279 mCurrentUserId = userId; 280 281 UserState userState = mUserStates.get(userId); 282 if (userState == null) { 283 userState = new UserState(); 284 } 285 mUserStates.put(userId, userState); 286 buildTvInputListLocked(userId); 287 } 288 } 289 290 private void removeUser(int userId) { 291 synchronized (mLock) { 292 UserState userState = mUserStates.get(userId); 293 if (userState == null) { 294 return; 295 } 296 // Release created sessions. 297 for (SessionState state : userState.sessionStateMap.values()) { 298 if (state.mSession != null) { 299 try { 300 state.mSession.release(); 301 } catch (RemoteException e) { 302 Slog.e(TAG, "error in release", e); 303 } 304 } 305 } 306 userState.sessionStateMap.clear(); 307 308 // Unregister all callbacks and unbind all services. 309 for (ServiceState serviceState : userState.serviceStateMap.values()) { 310 if (serviceState.mCallback != null) { 311 try { 312 serviceState.mService.unregisterCallback(serviceState.mCallback); 313 } catch (RemoteException e) { 314 Slog.e(TAG, "error in unregisterCallback", e); 315 } 316 } 317 serviceState.mClientTokens.clear(); 318 mContext.unbindService(serviceState.mConnection); 319 } 320 userState.serviceStateMap.clear(); 321 322 userState.clientStateMap.clear(); 323 324 mUserStates.remove(userId); 325 } 326 } 327 328 private UserState getUserStateLocked(int userId) { 329 UserState userState = mUserStates.get(userId); 330 if (userState == null) { 331 throw new IllegalStateException("User state not found for user ID " + userId); 332 } 333 return userState; 334 } 335 336 private ServiceState getServiceStateLocked(ComponentName name, int userId) { 337 UserState userState = getUserStateLocked(userId); 338 ServiceState serviceState = userState.serviceStateMap.get(name); 339 if (serviceState == null) { 340 throw new IllegalStateException("Service state not found for " + name + " (userId=" 341 + userId + ")"); 342 } 343 return serviceState; 344 } 345 346 private SessionState getSessionStateLocked(IBinder sessionToken, int callingUid, int userId) { 347 UserState userState = getUserStateLocked(userId); 348 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 349 if (sessionState == null) { 350 throw new IllegalArgumentException("Session state not found for token " + sessionToken); 351 } 352 // Only the application that requested this session or the system can access it. 353 if (callingUid != Process.SYSTEM_UID && callingUid != sessionState.mCallingUid) { 354 throw new SecurityException("Illegal access to the session with token " + sessionToken 355 + " from uid " + callingUid); 356 } 357 return sessionState; 358 } 359 360 private ITvInputSession getSessionLocked(IBinder sessionToken, int callingUid, int userId) { 361 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 362 ITvInputSession session = sessionState.mSession; 363 if (session == null) { 364 throw new IllegalStateException("Session not yet created for token " + sessionToken); 365 } 366 return session; 367 } 368 369 private int resolveCallingUserId(int callingPid, int callingUid, int requestedUserId, 370 String methodName) { 371 return ActivityManager.handleIncomingUser(callingPid, callingUid, requestedUserId, false, 372 false, methodName, null); 373 } 374 375 private static boolean shouldMaintainConnection(ServiceState serviceState) { 376 return !serviceState.mClientTokens.isEmpty() 377 || !serviceState.mSessionTokens.isEmpty() 378 || serviceState.mIsHardware; 379 // TODO: Find a way to maintain connection only when necessary. 380 } 381 382 private void updateServiceConnectionLocked(ComponentName service, int userId) { 383 UserState userState = getUserStateLocked(userId); 384 ServiceState serviceState = userState.serviceStateMap.get(service); 385 if (serviceState == null) { 386 return; 387 } 388 if (serviceState.mReconnecting) { 389 if (!serviceState.mSessionTokens.isEmpty()) { 390 // wait until all the sessions are removed. 391 return; 392 } 393 serviceState.mReconnecting = false; 394 } 395 boolean maintainConnection = shouldMaintainConnection(serviceState); 396 if (serviceState.mService == null && maintainConnection && userId == mCurrentUserId) { 397 // This means that the service is not yet connected but its state indicates that we 398 // have pending requests. Then, connect the service. 399 if (serviceState.mBound) { 400 // We have already bound to the service so we don't try to bind again until after we 401 // unbind later on. 402 return; 403 } 404 if (DEBUG) { 405 Slog.d(TAG, "bindServiceAsUser(service=" + service + ", userId=" + userId + ")"); 406 } 407 408 Intent i = new Intent(TvInputService.SERVICE_INTERFACE).setComponent(service); 409 // Binding service may fail if the service is updating. 410 // In that case, the connection will be revived in buildTvInputListLocked called by 411 // onSomePackagesChanged. 412 serviceState.mBound = mContext.bindServiceAsUser( 413 i, serviceState.mConnection, Context.BIND_AUTO_CREATE, new UserHandle(userId)); 414 } else if (serviceState.mService != null && !maintainConnection) { 415 // This means that the service is already connected but its state indicates that we have 416 // nothing to do with it. Then, disconnect the service. 417 if (DEBUG) { 418 Slog.d(TAG, "unbindService(service=" + service + ")"); 419 } 420 mContext.unbindService(serviceState.mConnection); 421 userState.serviceStateMap.remove(service); 422 } 423 } 424 425 private ClientState createClientStateLocked(IBinder clientToken, int userId) { 426 UserState userState = getUserStateLocked(userId); 427 ClientState clientState = new ClientState(clientToken, userId); 428 try { 429 clientToken.linkToDeath(clientState, 0); 430 } catch (RemoteException e) { 431 Slog.e(TAG, "Client is already died."); 432 } 433 userState.clientStateMap.put(clientToken, clientState); 434 return clientState; 435 } 436 437 private void createSessionInternalLocked(ITvInputService service, final IBinder sessionToken, 438 final int userId) { 439 final UserState userState = getUserStateLocked(userId); 440 final SessionState sessionState = userState.sessionStateMap.get(sessionToken); 441 if (DEBUG) { 442 Slog.d(TAG, "createSessionInternalLocked(inputId=" + sessionState.mInfo.getId() + ")"); 443 } 444 445 final InputChannel[] channels = InputChannel.openInputChannelPair(sessionToken.toString()); 446 447 // Set up a callback to send the session token. 448 ITvInputSessionCallback callback = new ITvInputSessionCallback.Stub() { 449 @Override 450 public void onSessionCreated(ITvInputSession session) { 451 if (DEBUG) { 452 Slog.d(TAG, "onSessionCreated(inputId=" + sessionState.mInfo.getId() + ")"); 453 } 454 synchronized (mLock) { 455 sessionState.mSession = session; 456 if (session == null) { 457 removeSessionStateLocked(sessionToken, userId); 458 sendSessionTokenToClientLocked(sessionState.mClient, 459 sessionState.mInfo.getId(), null, null, sessionState.mSeq); 460 } else { 461 try { 462 session.asBinder().linkToDeath(sessionState, 0); 463 } catch (RemoteException e) { 464 Slog.e(TAG, "Session is already died."); 465 } 466 467 IBinder clientToken = sessionState.mClient.asBinder(); 468 ClientState clientState = userState.clientStateMap.get(clientToken); 469 if (clientState == null) { 470 clientState = createClientStateLocked(clientToken, userId); 471 } 472 clientState.mSessionTokens.add(sessionState.mSessionToken); 473 474 sendSessionTokenToClientLocked(sessionState.mClient, 475 sessionState.mInfo.getId(), sessionToken, channels[0], 476 sessionState.mSeq); 477 } 478 channels[0].dispose(); 479 } 480 } 481 482 @Override 483 public void onChannelRetuned(Uri channelUri) { 484 synchronized (mLock) { 485 if (DEBUG) { 486 Slog.d(TAG, "onChannelRetuned(" + channelUri + ")"); 487 } 488 if (sessionState.mSession == null || sessionState.mClient == null) { 489 return; 490 } 491 try { 492 // TODO: Consider adding this channel change in the watch log. When we do 493 // that, how we can protect the watch log from malicious tv inputs should 494 // be addressed. e.g. add a field which represents where the channel change 495 // originated from. 496 sessionState.mClient.onChannelRetuned(channelUri, sessionState.mSeq); 497 } catch (RemoteException e) { 498 Slog.e(TAG, "error in onChannelRetuned"); 499 } 500 } 501 } 502 503 @Override 504 public void onTrackInfoChanged(List<TvTrackInfo> tracks) { 505 synchronized (mLock) { 506 if (DEBUG) { 507 Slog.d(TAG, "onTrackInfoChanged(" + tracks + ")"); 508 } 509 if (sessionState.mSession == null || sessionState.mClient == null) { 510 return; 511 } 512 try { 513 sessionState.mClient.onTrackInfoChanged(tracks, 514 sessionState.mSeq); 515 } catch (RemoteException e) { 516 Slog.e(TAG, "error in onTrackInfoChanged"); 517 } 518 } 519 } 520 521 @Override 522 public void onVideoAvailable() { 523 synchronized (mLock) { 524 if (DEBUG) { 525 Slog.d(TAG, "onVideoAvailable()"); 526 } 527 if (sessionState.mSession == null || sessionState.mClient == null) { 528 return; 529 } 530 try { 531 sessionState.mClient.onVideoAvailable(sessionState.mSeq); 532 } catch (RemoteException e) { 533 Slog.e(TAG, "error in onVideoAvailable"); 534 } 535 } 536 } 537 538 @Override 539 public void onVideoUnavailable(int reason) { 540 synchronized (mLock) { 541 if (DEBUG) { 542 Slog.d(TAG, "onVideoUnavailable(" + reason + ")"); 543 } 544 if (sessionState.mSession == null || sessionState.mClient == null) { 545 return; 546 } 547 try { 548 sessionState.mClient.onVideoUnavailable(reason, sessionState.mSeq); 549 } catch (RemoteException e) { 550 Slog.e(TAG, "error in onVideoUnavailable"); 551 } 552 } 553 } 554 555 @Override 556 public void onSessionEvent(String eventType, Bundle eventArgs) { 557 synchronized (mLock) { 558 if (DEBUG) { 559 Slog.d(TAG, "onEvent(what=" + eventType + ", data=" + eventArgs + ")"); 560 } 561 if (sessionState.mSession == null || sessionState.mClient == null) { 562 return; 563 } 564 try { 565 sessionState.mClient.onSessionEvent(eventType, eventArgs, 566 sessionState.mSeq); 567 } catch (RemoteException e) { 568 Slog.e(TAG, "error in onSessionEvent"); 569 } 570 } 571 } 572 }; 573 574 // Create a session. When failed, send a null token immediately. 575 try { 576 service.createSession(channels[1], callback, sessionState.mInfo.getId()); 577 } catch (RemoteException e) { 578 Slog.e(TAG, "error in createSession", e); 579 removeSessionStateLocked(sessionToken, userId); 580 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInfo.getId(), null, 581 null, sessionState.mSeq); 582 } 583 channels[1].dispose(); 584 } 585 586 private void sendSessionTokenToClientLocked(ITvInputClient client, String inputId, 587 IBinder sessionToken, InputChannel channel, int seq) { 588 try { 589 client.onSessionCreated(inputId, sessionToken, channel, seq); 590 } catch (RemoteException exception) { 591 Slog.e(TAG, "error in onSessionCreated", exception); 592 } 593 } 594 595 private void releaseSessionLocked(IBinder sessionToken, int callingUid, int userId) { 596 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 597 if (sessionState.mSession != null) { 598 try { 599 sessionState.mSession.release(); 600 } catch (RemoteException e) { 601 Slog.w(TAG, "session is already disapeared", e); 602 } 603 sessionState.mSession = null; 604 } 605 removeSessionStateLocked(sessionToken, userId); 606 } 607 608 private void removeSessionStateLocked(IBinder sessionToken, int userId) { 609 // Remove the session state from the global session state map of the current user. 610 UserState userState = getUserStateLocked(userId); 611 SessionState sessionState = userState.sessionStateMap.remove(sessionToken); 612 613 // Close the open log entry, if any. 614 if (sessionState.mLogUri != null) { 615 SomeArgs args = SomeArgs.obtain(); 616 args.arg1 = sessionState.mLogUri; 617 args.arg2 = System.currentTimeMillis(); 618 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args).sendToTarget(); 619 } 620 621 // Also remove the session token from the session token list of the current client and 622 // service. 623 ClientState clientState = userState.clientStateMap.get(sessionState.mClient.asBinder()); 624 if (clientState != null) { 625 clientState.mSessionTokens.remove(sessionToken); 626 if (clientState.isEmpty()) { 627 userState.clientStateMap.remove(sessionState.mClient.asBinder()); 628 } 629 } 630 631 TvInputInfo info = sessionState.mInfo; 632 if (info != null) { 633 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 634 if (serviceState != null) { 635 serviceState.mSessionTokens.remove(sessionToken); 636 } 637 } 638 updateServiceConnectionLocked(sessionState.mInfo.getComponent(), userId); 639 } 640 641 private void unregisterClientInternalLocked(IBinder clientToken, String inputId, 642 int userId) { 643 UserState userState = getUserStateLocked(userId); 644 ClientState clientState = userState.clientStateMap.get(clientToken); 645 if (clientState != null) { 646 clientState.mInputIds.remove(inputId); 647 if (clientState.isEmpty()) { 648 userState.clientStateMap.remove(clientToken); 649 } 650 } 651 652 TvInputInfo info = userState.inputMap.get(inputId).mInfo; 653 if (info == null) { 654 return; 655 } 656 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 657 if (serviceState == null) { 658 return; 659 } 660 661 // Remove this client from the client list and unregister the callback. 662 serviceState.mClientTokens.remove(clientToken); 663 if (!serviceState.mClientTokens.isEmpty()) { 664 // We have other clients who want to keep the callback. Do this later. 665 return; 666 } 667 if (serviceState.mService == null || serviceState.mCallback == null) { 668 return; 669 } 670 try { 671 serviceState.mService.unregisterCallback(serviceState.mCallback); 672 } catch (RemoteException e) { 673 Slog.e(TAG, "error in unregisterCallback", e); 674 } finally { 675 serviceState.mCallback = null; 676 updateServiceConnectionLocked(info.getComponent(), userId); 677 } 678 } 679 680 private void notifyStateChangedLocked(UserState userState, String inputId, 681 int state, ITvInputManagerCallback targetCallback) { 682 if (DEBUG) { 683 Slog.d(TAG, "notifyStateChangedLocked: inputId = " + inputId 684 + "; state = " + state); 685 } 686 if (targetCallback == null) { 687 for (ITvInputManagerCallback callback : userState.callbackSet) { 688 try { 689 callback.onInputStateChanged(inputId, state); 690 } catch (RemoteException e) { 691 Slog.e(TAG, "Failed to report state change to callback."); 692 } 693 } 694 } else { 695 try { 696 targetCallback.onInputStateChanged(inputId, state); 697 } catch (RemoteException e) { 698 Slog.e(TAG, "Failed to report state change to callback."); 699 } 700 } 701 } 702 703 private void setStateLocked(String inputId, int state, int userId) { 704 UserState userState = getUserStateLocked(userId); 705 TvInputState inputState = userState.inputMap.get(inputId); 706 ServiceState serviceState = userState.serviceStateMap.get(inputId); 707 int oldState = inputState.mState; 708 inputState.mState = state; 709 if (serviceState != null && serviceState.mService == null 710 && shouldMaintainConnection(serviceState)) { 711 // We don't notify state change while reconnecting. It should remain disconnected. 712 return; 713 } 714 if (oldState != state) { 715 notifyStateChangedLocked(userState, inputId, state, null); 716 } 717 } 718 719 private final class BinderService extends ITvInputManager.Stub { 720 @Override 721 public List<TvInputInfo> getTvInputList(int userId) { 722 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 723 Binder.getCallingUid(), userId, "getTvInputList"); 724 final long identity = Binder.clearCallingIdentity(); 725 try { 726 synchronized (mLock) { 727 UserState userState = getUserStateLocked(resolvedUserId); 728 List<TvInputInfo> inputList = new ArrayList<TvInputInfo>(); 729 for (TvInputState state : userState.inputMap.values()) { 730 inputList.add(state.mInfo); 731 } 732 return inputList; 733 } 734 } finally { 735 Binder.restoreCallingIdentity(identity); 736 } 737 } 738 739 @Override 740 public void registerCallback(final ITvInputManagerCallback callback, int userId) { 741 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 742 Binder.getCallingUid(), userId, "registerCallback"); 743 final long identity = Binder.clearCallingIdentity(); 744 try { 745 synchronized (mLock) { 746 UserState userState = getUserStateLocked(resolvedUserId); 747 userState.callbackSet.add(callback); 748 for (TvInputState state : userState.inputMap.values()) { 749 notifyStateChangedLocked(userState, state.mInfo.getId(), 750 state.mState, callback); 751 } 752 } 753 } finally { 754 Binder.restoreCallingIdentity(identity); 755 } 756 } 757 758 @Override 759 public void unregisterCallback(ITvInputManagerCallback callback, int userId) { 760 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 761 Binder.getCallingUid(), userId, "unregisterCallback"); 762 final long identity = Binder.clearCallingIdentity(); 763 try { 764 synchronized (mLock) { 765 UserState userState = getUserStateLocked(resolvedUserId); 766 userState.callbackSet.remove(callback); 767 } 768 } finally { 769 Binder.restoreCallingIdentity(identity); 770 } 771 } 772 773 @Override 774 public void createSession(final ITvInputClient client, final String inputId, 775 int seq, int userId) { 776 final int callingUid = Binder.getCallingUid(); 777 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 778 userId, "createSession"); 779 final long identity = Binder.clearCallingIdentity(); 780 try { 781 synchronized (mLock) { 782 UserState userState = getUserStateLocked(resolvedUserId); 783 TvInputInfo info = userState.inputMap.get(inputId).mInfo; 784 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 785 if (serviceState == null) { 786 serviceState = new ServiceState(info.getComponent(), resolvedUserId); 787 userState.serviceStateMap.put(info.getComponent(), serviceState); 788 } 789 // Send a null token immediately while reconnecting. 790 if (serviceState.mReconnecting == true) { 791 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 792 return; 793 } 794 795 // Create a new session token and a session state. 796 IBinder sessionToken = new Binder(); 797 SessionState sessionState = new SessionState(sessionToken, info, client, 798 seq, callingUid, resolvedUserId); 799 800 // Add them to the global session state map of the current user. 801 userState.sessionStateMap.put(sessionToken, sessionState); 802 803 // Also, add them to the session state map of the current service. 804 serviceState.mSessionTokens.add(sessionToken); 805 806 if (serviceState.mService != null) { 807 createSessionInternalLocked(serviceState.mService, sessionToken, 808 resolvedUserId); 809 } else { 810 updateServiceConnectionLocked(info.getComponent(), resolvedUserId); 811 } 812 } 813 } finally { 814 Binder.restoreCallingIdentity(identity); 815 } 816 } 817 818 @Override 819 public void releaseSession(IBinder sessionToken, int userId) { 820 final int callingUid = Binder.getCallingUid(); 821 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 822 userId, "releaseSession"); 823 final long identity = Binder.clearCallingIdentity(); 824 try { 825 synchronized (mLock) { 826 releaseSessionLocked(sessionToken, callingUid, resolvedUserId); 827 } 828 } finally { 829 Binder.restoreCallingIdentity(identity); 830 } 831 } 832 833 @Override 834 public void setSurface(IBinder sessionToken, Surface surface, int userId) { 835 final int callingUid = Binder.getCallingUid(); 836 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 837 userId, "setSurface"); 838 final long identity = Binder.clearCallingIdentity(); 839 try { 840 synchronized (mLock) { 841 try { 842 getSessionLocked(sessionToken, callingUid, resolvedUserId).setSurface( 843 surface); 844 } catch (RemoteException e) { 845 Slog.e(TAG, "error in setSurface", e); 846 } 847 } 848 } finally { 849 if (surface != null) { 850 // surface is not used in TvInputManagerService. 851 surface.release(); 852 } 853 Binder.restoreCallingIdentity(identity); 854 } 855 } 856 857 @Override 858 public void setVolume(IBinder sessionToken, float volume, int userId) { 859 final int callingUid = Binder.getCallingUid(); 860 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 861 userId, "setVolume"); 862 final long identity = Binder.clearCallingIdentity(); 863 try { 864 synchronized (mLock) { 865 try { 866 getSessionLocked(sessionToken, callingUid, resolvedUserId).setVolume( 867 volume); 868 } catch (RemoteException e) { 869 Slog.e(TAG, "error in setVolume", e); 870 } 871 } 872 } finally { 873 Binder.restoreCallingIdentity(identity); 874 } 875 } 876 877 @Override 878 public void tune(IBinder sessionToken, final Uri channelUri, int userId) { 879 final int callingUid = Binder.getCallingUid(); 880 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 881 userId, "tune"); 882 final long identity = Binder.clearCallingIdentity(); 883 try { 884 synchronized (mLock) { 885 try { 886 getSessionLocked(sessionToken, callingUid, resolvedUserId).tune(channelUri); 887 888 long currentTime = System.currentTimeMillis(); 889 long channelId = ContentUris.parseId(channelUri); 890 891 // Close the open log entry first, if any. 892 UserState userState = getUserStateLocked(resolvedUserId); 893 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 894 if (sessionState.mLogUri != null) { 895 SomeArgs args = SomeArgs.obtain(); 896 args.arg1 = sessionState.mLogUri; 897 args.arg2 = currentTime; 898 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args) 899 .sendToTarget(); 900 } 901 902 // Create a log entry and fill it later. 903 String packageName = sessionState.mInfo.getServiceInfo().packageName; 904 ContentValues values = new ContentValues(); 905 values.put(TvContract.WatchedPrograms.COLUMN_PACKAGE_NAME, packageName); 906 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 907 currentTime); 908 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 0); 909 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 910 911 sessionState.mLogUri = mContentResolver.insert( 912 TvContract.WatchedPrograms.CONTENT_URI, values); 913 SomeArgs args = SomeArgs.obtain(); 914 args.arg1 = sessionState.mLogUri; 915 args.arg2 = ContentUris.parseId(channelUri); 916 args.arg3 = currentTime; 917 mLogHandler.obtainMessage(LogHandler.MSG_OPEN_ENTRY, args).sendToTarget(); 918 } catch (RemoteException e) { 919 Slog.e(TAG, "error in tune", e); 920 return; 921 } 922 } 923 } finally { 924 Binder.restoreCallingIdentity(identity); 925 } 926 } 927 928 @Override 929 public void setCaptionEnabled(IBinder sessionToken, boolean enabled, int userId) { 930 final int callingUid = Binder.getCallingUid(); 931 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 932 userId, "setCaptionEnabled"); 933 final long identity = Binder.clearCallingIdentity(); 934 try { 935 synchronized (mLock) { 936 try { 937 getSessionLocked(sessionToken, callingUid, resolvedUserId) 938 .setCaptionEnabled(enabled); 939 } catch (RemoteException e) { 940 Slog.e(TAG, "error in setCaptionEnabled", e); 941 } 942 } 943 } finally { 944 Binder.restoreCallingIdentity(identity); 945 } 946 } 947 948 @Override 949 public void selectTrack(IBinder sessionToken, TvTrackInfo track, int userId) { 950 final int callingUid = Binder.getCallingUid(); 951 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 952 userId, "selectTrack"); 953 final long identity = Binder.clearCallingIdentity(); 954 try { 955 synchronized (mLock) { 956 try { 957 getSessionLocked(sessionToken, callingUid, resolvedUserId).selectTrack( 958 track); 959 } catch (RemoteException e) { 960 Slog.e(TAG, "error in selectTrack", e); 961 } 962 } 963 } finally { 964 Binder.restoreCallingIdentity(identity); 965 } 966 } 967 968 @Override 969 public void unselectTrack(IBinder sessionToken, TvTrackInfo track, int userId) { 970 final int callingUid = Binder.getCallingUid(); 971 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 972 userId, "unselectTrack"); 973 final long identity = Binder.clearCallingIdentity(); 974 try { 975 synchronized (mLock) { 976 try { 977 getSessionLocked(sessionToken, callingUid, resolvedUserId).unselectTrack( 978 track); 979 } catch (RemoteException e) { 980 Slog.e(TAG, "error in unselectTrack", e); 981 } 982 } 983 } finally { 984 Binder.restoreCallingIdentity(identity); 985 } 986 } 987 988 @Override 989 public void createOverlayView(IBinder sessionToken, IBinder windowToken, Rect frame, 990 int userId) { 991 final int callingUid = Binder.getCallingUid(); 992 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 993 userId, "createOverlayView"); 994 final long identity = Binder.clearCallingIdentity(); 995 try { 996 synchronized (mLock) { 997 try { 998 getSessionLocked(sessionToken, callingUid, resolvedUserId) 999 .createOverlayView(windowToken, frame); 1000 } catch (RemoteException e) { 1001 Slog.e(TAG, "error in createOverlayView", e); 1002 } 1003 } 1004 } finally { 1005 Binder.restoreCallingIdentity(identity); 1006 } 1007 } 1008 1009 @Override 1010 public void relayoutOverlayView(IBinder sessionToken, Rect frame, int userId) { 1011 final int callingUid = Binder.getCallingUid(); 1012 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1013 userId, "relayoutOverlayView"); 1014 final long identity = Binder.clearCallingIdentity(); 1015 try { 1016 synchronized (mLock) { 1017 try { 1018 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1019 .relayoutOverlayView(frame); 1020 } catch (RemoteException e) { 1021 Slog.e(TAG, "error in relayoutOverlayView", e); 1022 } 1023 } 1024 } finally { 1025 Binder.restoreCallingIdentity(identity); 1026 } 1027 } 1028 1029 @Override 1030 public void removeOverlayView(IBinder sessionToken, int userId) { 1031 final int callingUid = Binder.getCallingUid(); 1032 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1033 userId, "removeOverlayView"); 1034 final long identity = Binder.clearCallingIdentity(); 1035 try { 1036 synchronized (mLock) { 1037 try { 1038 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1039 .removeOverlayView(); 1040 } catch (RemoteException e) { 1041 Slog.e(TAG, "error in removeOverlayView", e); 1042 } 1043 } 1044 } finally { 1045 Binder.restoreCallingIdentity(identity); 1046 } 1047 } 1048 1049 @Override 1050 public List<TvInputHardwareInfo> getHardwareList() throws RemoteException { 1051 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1052 != PackageManager.PERMISSION_GRANTED) { 1053 return null; 1054 } 1055 1056 final long identity = Binder.clearCallingIdentity(); 1057 try { 1058 return mTvInputHardwareManager.getHardwareList(); 1059 } finally { 1060 Binder.restoreCallingIdentity(identity); 1061 } 1062 } 1063 1064 @Override 1065 public void registerTvInputInfo(TvInputInfo info, int deviceId) { 1066 // TODO: Revisit to sort out deviceId ownership. 1067 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1068 != PackageManager.PERMISSION_GRANTED) { 1069 return; 1070 } 1071 1072 final long identity = Binder.clearCallingIdentity(); 1073 try { 1074 mTvInputHardwareManager.registerTvInputInfo(info, deviceId); 1075 } finally { 1076 Binder.restoreCallingIdentity(identity); 1077 } 1078 } 1079 1080 @Override 1081 public ITvInputHardware acquireTvInputHardware(int deviceId, 1082 ITvInputHardwareCallback callback, TvInputInfo info, int userId) 1083 throws RemoteException { 1084 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1085 != PackageManager.PERMISSION_GRANTED) { 1086 return null; 1087 } 1088 1089 final long identity = Binder.clearCallingIdentity(); 1090 final int callingUid = Binder.getCallingUid(); 1091 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1092 userId, "acquireTvInputHardware"); 1093 try { 1094 return mTvInputHardwareManager.acquireHardware( 1095 deviceId, callback, info, callingUid, resolvedUserId); 1096 } finally { 1097 Binder.restoreCallingIdentity(identity); 1098 } 1099 } 1100 1101 @Override 1102 public void releaseTvInputHardware(int deviceId, ITvInputHardware hardware, int userId) 1103 throws RemoteException { 1104 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1105 != PackageManager.PERMISSION_GRANTED) { 1106 return; 1107 } 1108 1109 final long identity = Binder.clearCallingIdentity(); 1110 final int callingUid = Binder.getCallingUid(); 1111 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1112 userId, "releaseTvInputHardware"); 1113 try { 1114 mTvInputHardwareManager.releaseHardware( 1115 deviceId, hardware, callingUid, resolvedUserId); 1116 } finally { 1117 Binder.restoreCallingIdentity(identity); 1118 } 1119 } 1120 1121 @Override 1122 @SuppressWarnings("resource") 1123 protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) { 1124 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1125 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 1126 != PackageManager.PERMISSION_GRANTED) { 1127 pw.println("Permission Denial: can't dump TvInputManager from pid=" 1128 + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); 1129 return; 1130 } 1131 1132 synchronized (mLock) { 1133 pw.println("User Ids (Current user: " + mCurrentUserId + "):"); 1134 pw.increaseIndent(); 1135 for (int i = 0; i < mUserStates.size(); i++) { 1136 int userId = mUserStates.keyAt(i); 1137 pw.println(Integer.valueOf(userId)); 1138 } 1139 pw.decreaseIndent(); 1140 1141 for (int i = 0; i < mUserStates.size(); i++) { 1142 int userId = mUserStates.keyAt(i); 1143 UserState userState = getUserStateLocked(userId); 1144 pw.println("UserState (" + userId + "):"); 1145 pw.increaseIndent(); 1146 1147 pw.println("inputMap: inputId -> TvInputState"); 1148 pw.increaseIndent(); 1149 for (TvInputState state : userState.inputMap.values()) { 1150 pw.println(state.toString()); 1151 } 1152 pw.decreaseIndent(); 1153 1154 pw.println("packageSet:"); 1155 pw.increaseIndent(); 1156 for (String packageName : userState.packageSet) { 1157 pw.println(packageName); 1158 } 1159 pw.decreaseIndent(); 1160 1161 pw.println("clientStateMap: ITvInputClient -> ClientState"); 1162 pw.increaseIndent(); 1163 for (Map.Entry<IBinder, ClientState> entry : 1164 userState.clientStateMap.entrySet()) { 1165 ClientState client = entry.getValue(); 1166 pw.println(entry.getKey() + ": " + client); 1167 1168 pw.increaseIndent(); 1169 1170 pw.println("mInputIds:"); 1171 pw.increaseIndent(); 1172 for (String inputId : client.mInputIds) { 1173 pw.println(inputId); 1174 } 1175 pw.decreaseIndent(); 1176 1177 pw.println("mSessionTokens:"); 1178 pw.increaseIndent(); 1179 for (IBinder token : client.mSessionTokens) { 1180 pw.println("" + token); 1181 } 1182 pw.decreaseIndent(); 1183 1184 pw.println("mClientTokens: " + client.mClientToken); 1185 pw.println("mUserId: " + client.mUserId); 1186 1187 pw.decreaseIndent(); 1188 } 1189 pw.decreaseIndent(); 1190 1191 pw.println("serviceStateMap: ComponentName -> ServiceState"); 1192 pw.increaseIndent(); 1193 for (Map.Entry<ComponentName, ServiceState> entry : 1194 userState.serviceStateMap.entrySet()) { 1195 ServiceState service = entry.getValue(); 1196 pw.println(entry.getKey() + ": " + service); 1197 1198 pw.increaseIndent(); 1199 1200 pw.println("mClientTokens:"); 1201 pw.increaseIndent(); 1202 for (IBinder token : service.mClientTokens) { 1203 pw.println("" + token); 1204 } 1205 pw.decreaseIndent(); 1206 1207 pw.println("mSessionTokens:"); 1208 pw.increaseIndent(); 1209 for (IBinder token : service.mSessionTokens) { 1210 pw.println("" + token); 1211 } 1212 pw.decreaseIndent(); 1213 1214 pw.println("mService: " + service.mService); 1215 pw.println("mCallback: " + service.mCallback); 1216 pw.println("mBound: " + service.mBound); 1217 pw.println("mReconnecting: " + service.mReconnecting); 1218 1219 pw.decreaseIndent(); 1220 } 1221 pw.decreaseIndent(); 1222 1223 pw.println("sessionStateMap: ITvInputSession -> SessionState"); 1224 pw.increaseIndent(); 1225 for (Map.Entry<IBinder, SessionState> entry : 1226 userState.sessionStateMap.entrySet()) { 1227 SessionState session = entry.getValue(); 1228 pw.println(entry.getKey() + ": " + session); 1229 1230 pw.increaseIndent(); 1231 pw.println("mInfo: " + session.mInfo); 1232 pw.println("mClient: " + session.mClient); 1233 pw.println("mSeq: " + session.mSeq); 1234 pw.println("mCallingUid: " + session.mCallingUid); 1235 pw.println("mUserId: " + session.mUserId); 1236 pw.println("mSessionToken: " + session.mSessionToken); 1237 pw.println("mSession: " + session.mSession); 1238 pw.println("mLogUri: " + session.mLogUri); 1239 pw.decreaseIndent(); 1240 } 1241 pw.decreaseIndent(); 1242 1243 pw.println("callbackSet:"); 1244 pw.increaseIndent(); 1245 for (ITvInputManagerCallback callback : userState.callbackSet) { 1246 pw.println(callback.toString()); 1247 } 1248 pw.decreaseIndent(); 1249 1250 pw.decreaseIndent(); 1251 } 1252 } 1253 } 1254 } 1255 1256 private static final class TvInputState { 1257 // A TvInputInfo object which represents the TV input. 1258 private TvInputInfo mInfo; 1259 1260 // The state of TV input. Connected by default. 1261 private int mState = INPUT_STATE_CONNECTED; 1262 1263 @Override 1264 public String toString() { 1265 return "mInfo: " + mInfo + "; mState: " + mState; 1266 } 1267 } 1268 1269 private static final class UserState { 1270 // A mapping from the TV input id to its TvInputState. 1271 private Map<String, TvInputState> inputMap = new HashMap<String, TvInputState>(); 1272 1273 // A set of all TV input packages. 1274 private final Set<String> packageSet = new HashSet<String>(); 1275 1276 // A mapping from the token of a client to its state. 1277 private final Map<IBinder, ClientState> clientStateMap = 1278 new HashMap<IBinder, ClientState>(); 1279 1280 // A mapping from the name of a TV input service to its state. 1281 private final Map<ComponentName, ServiceState> serviceStateMap = 1282 new HashMap<ComponentName, ServiceState>(); 1283 1284 // A mapping from the token of a TV input session to its state. 1285 private final Map<IBinder, SessionState> sessionStateMap = 1286 new HashMap<IBinder, SessionState>(); 1287 1288 // A set of callbacks. 1289 private final Set<ITvInputManagerCallback> callbackSet = 1290 new HashSet<ITvInputManagerCallback>(); 1291 } 1292 1293 private final class ClientState implements IBinder.DeathRecipient { 1294 private final List<String> mInputIds = new ArrayList<String>(); 1295 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1296 1297 private IBinder mClientToken; 1298 private final int mUserId; 1299 1300 ClientState(IBinder clientToken, int userId) { 1301 mClientToken = clientToken; 1302 mUserId = userId; 1303 } 1304 1305 public boolean isEmpty() { 1306 return mInputIds.isEmpty() && mSessionTokens.isEmpty(); 1307 } 1308 1309 @Override 1310 public void binderDied() { 1311 synchronized (mLock) { 1312 UserState userState = getUserStateLocked(mUserId); 1313 // DO NOT remove the client state of clientStateMap in this method. It will be 1314 // removed in releaseSessionLocked() or unregisterClientInternalLocked(). 1315 ClientState clientState = userState.clientStateMap.get(mClientToken); 1316 if (clientState != null) { 1317 while (clientState.mSessionTokens.size() > 0) { 1318 releaseSessionLocked( 1319 clientState.mSessionTokens.get(0), Process.SYSTEM_UID, mUserId); 1320 } 1321 while (clientState.mInputIds.size() > 0) { 1322 unregisterClientInternalLocked( 1323 mClientToken, clientState.mInputIds.get(0), mUserId); 1324 } 1325 } 1326 mClientToken = null; 1327 } 1328 } 1329 } 1330 1331 private final class ServiceState { 1332 private final List<IBinder> mClientTokens = new ArrayList<IBinder>(); 1333 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1334 private final ServiceConnection mConnection; 1335 private final ComponentName mName; 1336 private final boolean mIsHardware; 1337 private final List<TvInputInfo> mInputList = new ArrayList<TvInputInfo>(); 1338 1339 private ITvInputService mService; 1340 private ServiceCallback mCallback; 1341 private boolean mBound; 1342 private boolean mReconnecting; 1343 1344 private ServiceState(ComponentName name, int userId) { 1345 mName = name; 1346 mConnection = new InputServiceConnection(name, userId); 1347 mIsHardware = hasHardwarePermission(mContext.getPackageManager(), mName); 1348 } 1349 } 1350 1351 private final class SessionState implements IBinder.DeathRecipient { 1352 private final TvInputInfo mInfo; 1353 private final ITvInputClient mClient; 1354 private final int mSeq; 1355 private final int mCallingUid; 1356 private final int mUserId; 1357 private final IBinder mSessionToken; 1358 private ITvInputSession mSession; 1359 private Uri mLogUri; 1360 1361 private SessionState(IBinder sessionToken, TvInputInfo info, ITvInputClient client, int seq, 1362 int callingUid, int userId) { 1363 mSessionToken = sessionToken; 1364 mInfo = info; 1365 mClient = client; 1366 mSeq = seq; 1367 mCallingUid = callingUid; 1368 mUserId = userId; 1369 } 1370 1371 @Override 1372 public void binderDied() { 1373 synchronized (mLock) { 1374 mSession = null; 1375 if (mClient != null) { 1376 try { 1377 mClient.onSessionReleased(mSeq); 1378 } catch(RemoteException e) { 1379 Slog.e(TAG, "error in onSessionReleased", e); 1380 } 1381 } 1382 removeSessionStateLocked(mSessionToken, mUserId); 1383 } 1384 } 1385 } 1386 1387 private final class InputServiceConnection implements ServiceConnection { 1388 private final ComponentName mName; 1389 private final int mUserId; 1390 1391 private InputServiceConnection(ComponentName name, int userId) { 1392 mName = name; 1393 mUserId = userId; 1394 } 1395 1396 @Override 1397 public void onServiceConnected(ComponentName name, IBinder service) { 1398 if (DEBUG) { 1399 Slog.d(TAG, "onServiceConnected(name=" + name + ")"); 1400 } 1401 synchronized (mLock) { 1402 List<TvInputHardwareInfo> hardwareInfoList = 1403 mTvInputHardwareManager.getHardwareList(); 1404 UserState userState = getUserStateLocked(mUserId); 1405 ServiceState serviceState = userState.serviceStateMap.get(mName); 1406 serviceState.mService = ITvInputService.Stub.asInterface(service); 1407 1408 // Register a callback, if we need to. 1409 if (serviceState.mIsHardware && serviceState.mCallback == null) { 1410 serviceState.mCallback = new ServiceCallback(mName, mUserId); 1411 try { 1412 serviceState.mService.registerCallback(serviceState.mCallback); 1413 } catch (RemoteException e) { 1414 Slog.e(TAG, "error in registerCallback", e); 1415 } 1416 } 1417 1418 // And create sessions, if any. 1419 for (IBinder sessionToken : serviceState.mSessionTokens) { 1420 createSessionInternalLocked(serviceState.mService, sessionToken, mUserId); 1421 } 1422 1423 for (TvInputState inputState : userState.inputMap.values()) { 1424 if (inputState.mInfo.getComponent().equals(name) 1425 && inputState.mState != INPUT_STATE_DISCONNECTED) { 1426 notifyStateChangedLocked(userState, inputState.mInfo.getId(), 1427 inputState.mState, null); 1428 } 1429 } 1430 1431 if (serviceState.mIsHardware) { 1432 for (TvInputHardwareInfo hardwareInfo : hardwareInfoList) { 1433 try { 1434 serviceState.mService.notifyHardwareAdded(hardwareInfo); 1435 } catch (RemoteException e) { 1436 Slog.e(TAG, "error in notifyHardwareAdded", e); 1437 } 1438 } 1439 1440 // TODO: Grab CEC devices and notify them to the service. 1441 } 1442 } 1443 } 1444 1445 @Override 1446 public void onServiceDisconnected(ComponentName name) { 1447 if (DEBUG) { 1448 Slog.d(TAG, "onServiceDisconnected(name=" + name + ")"); 1449 } 1450 if (!mName.equals(name)) { 1451 throw new IllegalArgumentException("Mismatched ComponentName: " 1452 + mName + " (expected), " + name + " (actual)."); 1453 } 1454 synchronized (mLock) { 1455 UserState userState = getUserStateLocked(mUserId); 1456 ServiceState serviceState = userState.serviceStateMap.get(mName); 1457 if (serviceState != null) { 1458 serviceState.mReconnecting = true; 1459 serviceState.mBound = false; 1460 serviceState.mService = null; 1461 serviceState.mCallback = null; 1462 1463 // Send null tokens for not finishing create session events. 1464 for (IBinder sessionToken : serviceState.mSessionTokens) { 1465 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1466 if (sessionState.mSession == null) { 1467 removeSessionStateLocked(sessionToken, sessionState.mUserId); 1468 sendSessionTokenToClientLocked(sessionState.mClient, 1469 sessionState.mInfo.getId(), null, null, sessionState.mSeq); 1470 } 1471 } 1472 1473 for (TvInputState inputState : userState.inputMap.values()) { 1474 if (inputState.mInfo.getComponent().equals(name)) { 1475 notifyStateChangedLocked(userState, inputState.mInfo.getId(), 1476 INPUT_STATE_DISCONNECTED, null); 1477 } 1478 } 1479 updateServiceConnectionLocked(mName, mUserId); 1480 } 1481 } 1482 } 1483 } 1484 1485 private final class ServiceCallback extends ITvInputServiceCallback.Stub { 1486 private final ComponentName mName; 1487 private final int mUserId; 1488 1489 ServiceCallback(ComponentName name, int userId) { 1490 mName = name; 1491 mUserId = userId; 1492 } 1493 1494 @Override 1495 public void addTvInput(TvInputInfo inputInfo) { 1496 synchronized (mLock) { 1497 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1498 != PackageManager.PERMISSION_GRANTED) { 1499 Slog.w(TAG, "The caller does not have permission to add a TV input (" 1500 + inputInfo + ")."); 1501 return; 1502 } 1503 1504 ServiceState serviceState = getServiceStateLocked(mName, mUserId); 1505 serviceState.mInputList.add(inputInfo); 1506 buildTvInputListLocked(mUserId); 1507 } 1508 } 1509 1510 @Override 1511 public void removeTvInput(String inputId) { 1512 synchronized (mLock) { 1513 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1514 != PackageManager.PERMISSION_GRANTED) { 1515 Slog.w(TAG, "The caller does not have permission to remove a TV input (" 1516 + inputId + ")."); 1517 return; 1518 } 1519 1520 ServiceState serviceState = getServiceStateLocked(mName, mUserId); 1521 boolean removed = false; 1522 for (Iterator<TvInputInfo> it = serviceState.mInputList.iterator(); 1523 it.hasNext(); ) { 1524 if (it.next().getId().equals(inputId)) { 1525 it.remove(); 1526 removed = true; 1527 break; 1528 } 1529 } 1530 if (removed) { 1531 buildTvInputListLocked(mUserId); 1532 } else { 1533 Slog.e(TAG, "TvInputInfo with inputId=" + inputId + " not found."); 1534 } 1535 } 1536 } 1537 } 1538 1539 private final class LogHandler extends Handler { 1540 private static final int MSG_OPEN_ENTRY = 1; 1541 private static final int MSG_UPDATE_ENTRY = 2; 1542 private static final int MSG_CLOSE_ENTRY = 3; 1543 1544 public LogHandler(Looper looper) { 1545 super(looper); 1546 } 1547 1548 @Override 1549 public void handleMessage(Message msg) { 1550 switch (msg.what) { 1551 case MSG_OPEN_ENTRY: { 1552 SomeArgs args = (SomeArgs) msg.obj; 1553 Uri uri = (Uri) args.arg1; 1554 long channelId = (long) args.arg2; 1555 long time = (long) args.arg3; 1556 onOpenEntry(uri, channelId, time); 1557 args.recycle(); 1558 return; 1559 } 1560 case MSG_UPDATE_ENTRY: { 1561 SomeArgs args = (SomeArgs) msg.obj; 1562 Uri uri = (Uri) args.arg1; 1563 long channelId = (long) args.arg2; 1564 long time = (long) args.arg3; 1565 onUpdateEntry(uri, channelId, time); 1566 args.recycle(); 1567 return; 1568 } 1569 case MSG_CLOSE_ENTRY: { 1570 SomeArgs args = (SomeArgs) msg.obj; 1571 Uri uri = (Uri) args.arg1; 1572 long time = (long) args.arg2; 1573 onCloseEntry(uri, time); 1574 args.recycle(); 1575 return; 1576 } 1577 default: { 1578 Slog.w(TAG, "Unhandled message code: " + msg.what); 1579 return; 1580 } 1581 } 1582 } 1583 1584 private void onOpenEntry(Uri uri, long channelId, long watchStarttime) { 1585 String[] projection = { 1586 TvContract.Programs.COLUMN_TITLE, 1587 TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS, 1588 TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS, 1589 TvContract.Programs.COLUMN_SHORT_DESCRIPTION 1590 }; 1591 String selection = TvContract.Programs.COLUMN_CHANNEL_ID + "=? AND " 1592 + TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + "<=? AND " 1593 + TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS + ">?"; 1594 String[] selectionArgs = { 1595 String.valueOf(channelId), 1596 String.valueOf(watchStarttime), 1597 String.valueOf(watchStarttime) 1598 }; 1599 String sortOrder = TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + " ASC"; 1600 Cursor cursor = null; 1601 try { 1602 cursor = mContentResolver.query(TvContract.Programs.CONTENT_URI, projection, 1603 selection, selectionArgs, sortOrder); 1604 if (cursor != null && cursor.moveToNext()) { 1605 ContentValues values = new ContentValues(); 1606 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, cursor.getString(0)); 1607 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1608 cursor.getLong(1)); 1609 long endTime = cursor.getLong(2); 1610 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1611 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, cursor.getString(3)); 1612 mContentResolver.update(uri, values, null, null); 1613 1614 // Schedule an update when the current program ends. 1615 SomeArgs args = SomeArgs.obtain(); 1616 args.arg1 = uri; 1617 args.arg2 = channelId; 1618 args.arg3 = endTime; 1619 Message msg = obtainMessage(LogHandler.MSG_UPDATE_ENTRY, args); 1620 sendMessageDelayed(msg, endTime - System.currentTimeMillis()); 1621 } 1622 } finally { 1623 if (cursor != null) { 1624 cursor.close(); 1625 } 1626 } 1627 } 1628 1629 private void onUpdateEntry(Uri uri, long channelId, long time) { 1630 String[] projection = { 1631 TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1632 TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 1633 TvContract.WatchedPrograms.COLUMN_TITLE, 1634 TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1635 TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, 1636 TvContract.WatchedPrograms.COLUMN_DESCRIPTION 1637 }; 1638 Cursor cursor = null; 1639 try { 1640 cursor = mContentResolver.query(uri, projection, null, null, null); 1641 if (cursor != null && cursor.moveToNext()) { 1642 long watchStartTime = cursor.getLong(0); 1643 long watchEndTime = cursor.getLong(1); 1644 String title = cursor.getString(2); 1645 long startTime = cursor.getLong(3); 1646 long endTime = cursor.getLong(4); 1647 String description = cursor.getString(5); 1648 1649 // Do nothing if the current log entry is already closed. 1650 if (watchEndTime > 0) { 1651 return; 1652 } 1653 1654 // The current program has just ended. Create a (complete) log entry off the 1655 // current entry. 1656 ContentValues values = new ContentValues(); 1657 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1658 watchStartTime); 1659 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, time); 1660 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 1661 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, title); 1662 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, startTime); 1663 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1664 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, description); 1665 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 1666 } 1667 } finally { 1668 if (cursor != null) { 1669 cursor.close(); 1670 } 1671 } 1672 // Re-open the current log entry with the next program information. 1673 onOpenEntry(uri, channelId, time); 1674 } 1675 1676 private void onCloseEntry(Uri uri, long watchEndTime) { 1677 ContentValues values = new ContentValues(); 1678 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, watchEndTime); 1679 mContentResolver.update(uri, values, null, null); 1680 } 1681 } 1682 1683 final class HardwareListener implements TvInputHardwareManager.Listener { 1684 @Override 1685 public void onStateChanged(String inputId, int state) { 1686 synchronized (mLock) { 1687 setStateLocked(inputId, state, mCurrentUserId); 1688 } 1689 } 1690 1691 @Override 1692 public void onHardwareDeviceAdded(TvInputHardwareInfo info) { 1693 synchronized (mLock) { 1694 UserState userState = getUserStateLocked(mCurrentUserId); 1695 // Broadcast the event to all hardware inputs. 1696 for (ServiceState serviceState : userState.serviceStateMap.values()) { 1697 if (!serviceState.mIsHardware || serviceState.mService == null) continue; 1698 try { 1699 serviceState.mService.notifyHardwareAdded(info); 1700 } catch (RemoteException e) { 1701 Slog.e(TAG, "error in notifyHardwareAdded", e); 1702 } 1703 } 1704 } 1705 } 1706 1707 @Override 1708 public void onHardwareDeviceRemoved(int deviceId) { 1709 synchronized (mLock) { 1710 UserState userState = getUserStateLocked(mCurrentUserId); 1711 // Broadcast the event to all hardware inputs. 1712 for (ServiceState serviceState : userState.serviceStateMap.values()) { 1713 if (!serviceState.mIsHardware || serviceState.mService == null) continue; 1714 try { 1715 serviceState.mService.notifyHardwareRemoved(deviceId); 1716 } catch (RemoteException e) { 1717 Slog.e(TAG, "error in notifyHardwareRemoved", e); 1718 } 1719 } 1720 } 1721 } 1722 1723 @Override 1724 public void onHdmiCecDeviceAdded(HdmiCecDeviceInfo cecDevice) { 1725 synchronized (mLock) { 1726 // TODO 1727 } 1728 } 1729 1730 @Override 1731 public void onHdmiCecDeviceRemoved(HdmiCecDeviceInfo cecDevice) { 1732 synchronized (mLock) { 1733 // TODO 1734 } 1735 } 1736 } 1737} 1738