TvInputManagerService.java revision 969167dc05a6485a32d160895871cff46fd81884
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 onSessionEvent(String eventType, Bundle eventArgs) { 524 synchronized (mLock) { 525 if (DEBUG) { 526 Slog.d(TAG, "onEvent(what=" + eventType + ", data=" + eventArgs + ")"); 527 } 528 if (sessionState.mSession == null || sessionState.mClient == null) { 529 return; 530 } 531 try { 532 sessionState.mClient.onSessionEvent(eventType, eventArgs, 533 sessionState.mSeq); 534 } catch (RemoteException e) { 535 Slog.e(TAG, "error in onSessionEvent"); 536 } 537 } 538 } 539 }; 540 541 // Create a session. When failed, send a null token immediately. 542 try { 543 service.createSession(channels[1], callback); 544 } catch (RemoteException e) { 545 Slog.e(TAG, "error in createSession", e); 546 removeSessionStateLocked(sessionToken, userId); 547 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInputId, null, null, 548 sessionState.mSeq); 549 } 550 channels[1].dispose(); 551 } 552 553 private void sendSessionTokenToClientLocked(ITvInputClient client, String inputId, 554 IBinder sessionToken, InputChannel channel, int seq) { 555 try { 556 client.onSessionCreated(inputId, sessionToken, channel, seq); 557 } catch (RemoteException exception) { 558 Slog.e(TAG, "error in onSessionCreated", exception); 559 } 560 } 561 562 private void releaseSessionLocked(IBinder sessionToken, int callingUid, int userId) { 563 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 564 if (sessionState.mSession != null) { 565 try { 566 sessionState.mSession.release(); 567 } catch (RemoteException e) { 568 Slog.w(TAG, "session is already disapeared", e); 569 } 570 sessionState.mSession = null; 571 } 572 removeSessionStateLocked(sessionToken, userId); 573 } 574 575 private void removeSessionStateLocked(IBinder sessionToken, int userId) { 576 // Remove the session state from the global session state map of the current user. 577 UserState userState = getUserStateLocked(userId); 578 SessionState sessionState = userState.sessionStateMap.remove(sessionToken); 579 580 // Close the open log entry, if any. 581 if (sessionState.mLogUri != null) { 582 SomeArgs args = SomeArgs.obtain(); 583 args.arg1 = sessionState.mLogUri; 584 args.arg2 = System.currentTimeMillis(); 585 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args).sendToTarget(); 586 } 587 588 // Also remove the session token from the session token list of the current client and 589 // service. 590 ClientState clientState = userState.clientStateMap.get(sessionState.mClient.asBinder()); 591 if (clientState != null) { 592 clientState.mSessionTokens.remove(sessionToken); 593 if (clientState.isEmpty()) { 594 userState.clientStateMap.remove(sessionState.mClient.asBinder()); 595 } 596 } 597 598 ServiceState serviceState = userState.serviceStateMap.get(sessionState.mInputId); 599 if (serviceState != null) { 600 serviceState.mSessionTokens.remove(sessionToken); 601 } 602 updateServiceConnectionLocked(sessionState.mInputId, userId); 603 } 604 605 private void unregisterClientInternalLocked(IBinder clientToken, String inputId, 606 int userId) { 607 UserState userState = getUserStateLocked(userId); 608 ClientState clientState = userState.clientStateMap.get(clientToken); 609 if (clientState != null) { 610 clientState.mInputIds.remove(inputId); 611 if (clientState.isEmpty()) { 612 userState.clientStateMap.remove(clientToken); 613 } 614 } 615 616 ServiceState serviceState = userState.serviceStateMap.get(inputId); 617 if (serviceState == null) { 618 return; 619 } 620 621 // Remove this client from the client list and unregister the callback. 622 serviceState.mClientTokens.remove(clientToken); 623 if (!serviceState.mClientTokens.isEmpty()) { 624 // We have other clients who want to keep the callback. Do this later. 625 return; 626 } 627 if (serviceState.mService == null || serviceState.mCallback == null) { 628 return; 629 } 630 try { 631 serviceState.mService.unregisterCallback(serviceState.mCallback); 632 } catch (RemoteException e) { 633 Slog.e(TAG, "error in unregisterCallback", e); 634 } finally { 635 serviceState.mCallback = null; 636 updateServiceConnectionLocked(inputId, userId); 637 } 638 } 639 640 private void notifyStateChangedLocked(UserState userState, String inputId, 641 int state, ITvInputManagerCallback targetCallback) { 642 if (DEBUG) { 643 Slog.d(TAG, "notifyStateChangedLocked: inputId = " + inputId 644 + "; state = " + state); 645 } 646 if (targetCallback == null) { 647 for (ITvInputManagerCallback callback : userState.callbackSet) { 648 try { 649 callback.onInputStateChanged(inputId, state); 650 } catch (RemoteException e) { 651 Slog.e(TAG, "Failed to report state change to callback."); 652 } 653 } 654 } else { 655 try { 656 targetCallback.onInputStateChanged(inputId, state); 657 } catch (RemoteException e) { 658 Slog.e(TAG, "Failed to report state change to callback."); 659 } 660 } 661 } 662 663 private void setStateLocked(String inputId, int state, int userId) { 664 UserState userState = getUserStateLocked(userId); 665 TvInputState inputState = userState.inputMap.get(inputId); 666 ServiceState serviceState = userState.serviceStateMap.get(inputId); 667 int oldState = inputState.mState; 668 inputState.mState = state; 669 boolean isStateEmpty = serviceState.mClientTokens.isEmpty() 670 && serviceState.mSessionTokens.isEmpty(); 671 if (serviceState != null && serviceState.mService == null && !isStateEmpty) { 672 // We don't notify state change while reconnecting. It should remain disconnected. 673 return; 674 } 675 if (oldState != state) { 676 notifyStateChangedLocked(userState, inputId, state, null); 677 } 678 } 679 680 private final class BinderService extends ITvInputManager.Stub { 681 @Override 682 public List<TvInputInfo> getTvInputList(int userId) { 683 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 684 Binder.getCallingUid(), userId, "getTvInputList"); 685 final long identity = Binder.clearCallingIdentity(); 686 try { 687 synchronized (mLock) { 688 UserState userState = getUserStateLocked(resolvedUserId); 689 List<TvInputInfo> inputList = new ArrayList<TvInputInfo>(); 690 for (TvInputState state : userState.inputMap.values()) { 691 inputList.add(state.mInfo); 692 } 693 return inputList; 694 } 695 } finally { 696 Binder.restoreCallingIdentity(identity); 697 } 698 } 699 700 @Override 701 public void registerCallback(final ITvInputManagerCallback callback, int userId) { 702 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 703 Binder.getCallingUid(), userId, "registerCallback"); 704 final long identity = Binder.clearCallingIdentity(); 705 try { 706 synchronized (mLock) { 707 UserState userState = getUserStateLocked(resolvedUserId); 708 userState.callbackSet.add(callback); 709 for (TvInputState state : userState.inputMap.values()) { 710 notifyStateChangedLocked(userState, state.mInfo.getId(), 711 state.mState, callback); 712 } 713 } 714 } finally { 715 Binder.restoreCallingIdentity(identity); 716 } 717 } 718 719 @Override 720 public void unregisterCallback(ITvInputManagerCallback callback, int userId) { 721 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 722 Binder.getCallingUid(), userId, "unregisterCallback"); 723 final long identity = Binder.clearCallingIdentity(); 724 try { 725 synchronized (mLock) { 726 UserState userState = getUserStateLocked(resolvedUserId); 727 userState.callbackSet.remove(callback); 728 } 729 } finally { 730 Binder.restoreCallingIdentity(identity); 731 } 732 } 733 734 @Override 735 public void createSession(final ITvInputClient client, final String inputId, 736 int seq, int userId) { 737 final int callingUid = Binder.getCallingUid(); 738 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 739 userId, "createSession"); 740 final long identity = Binder.clearCallingIdentity(); 741 try { 742 synchronized (mLock) { 743 UserState userState = getUserStateLocked(resolvedUserId); 744 ServiceState serviceState = userState.serviceStateMap.get(inputId); 745 if (serviceState == null) { 746 serviceState = new ServiceState( 747 userState.inputMap.get(inputId).mInfo, resolvedUserId); 748 userState.serviceStateMap.put(inputId, serviceState); 749 } 750 // Send a null token immediately while reconnecting. 751 if (serviceState.mReconnecting == true) { 752 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 753 return; 754 } 755 756 // Create a new session token and a session state. 757 IBinder sessionToken = new Binder(); 758 SessionState sessionState = new SessionState(sessionToken, inputId, client, 759 seq, callingUid, resolvedUserId); 760 761 // Add them to the global session state map of the current user. 762 userState.sessionStateMap.put(sessionToken, sessionState); 763 764 // Also, add them to the session state map of the current service. 765 serviceState.mSessionTokens.add(sessionToken); 766 767 if (serviceState.mService != null) { 768 createSessionInternalLocked(serviceState.mService, sessionToken, 769 resolvedUserId); 770 } else { 771 updateServiceConnectionLocked(inputId, resolvedUserId); 772 } 773 } 774 } finally { 775 Binder.restoreCallingIdentity(identity); 776 } 777 } 778 779 @Override 780 public void releaseSession(IBinder sessionToken, int userId) { 781 final int callingUid = Binder.getCallingUid(); 782 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 783 userId, "releaseSession"); 784 final long identity = Binder.clearCallingIdentity(); 785 try { 786 synchronized (mLock) { 787 releaseSessionLocked(sessionToken, callingUid, resolvedUserId); 788 } 789 } finally { 790 Binder.restoreCallingIdentity(identity); 791 } 792 } 793 794 @Override 795 public void setSurface(IBinder sessionToken, Surface surface, int userId) { 796 final int callingUid = Binder.getCallingUid(); 797 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 798 userId, "setSurface"); 799 final long identity = Binder.clearCallingIdentity(); 800 try { 801 synchronized (mLock) { 802 try { 803 getSessionLocked(sessionToken, callingUid, resolvedUserId).setSurface( 804 surface); 805 } catch (RemoteException e) { 806 Slog.e(TAG, "error in setSurface", e); 807 } 808 } 809 } finally { 810 if (surface != null) { 811 // surface is not used in TvInputManagerService. 812 surface.release(); 813 } 814 Binder.restoreCallingIdentity(identity); 815 } 816 } 817 818 @Override 819 public void setVolume(IBinder sessionToken, float volume, int userId) { 820 final int callingUid = Binder.getCallingUid(); 821 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 822 userId, "setVolume"); 823 final long identity = Binder.clearCallingIdentity(); 824 try { 825 synchronized (mLock) { 826 try { 827 getSessionLocked(sessionToken, callingUid, resolvedUserId).setVolume( 828 volume); 829 } catch (RemoteException e) { 830 Slog.e(TAG, "error in setVolume", e); 831 } 832 } 833 } finally { 834 Binder.restoreCallingIdentity(identity); 835 } 836 } 837 838 @Override 839 public void tune(IBinder sessionToken, final Uri channelUri, int userId) { 840 final int callingUid = Binder.getCallingUid(); 841 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 842 userId, "tune"); 843 final long identity = Binder.clearCallingIdentity(); 844 try { 845 synchronized (mLock) { 846 try { 847 getSessionLocked(sessionToken, callingUid, resolvedUserId).tune(channelUri); 848 849 long currentTime = System.currentTimeMillis(); 850 long channelId = ContentUris.parseId(channelUri); 851 852 // Close the open log entry first, if any. 853 UserState userState = getUserStateLocked(resolvedUserId); 854 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 855 if (sessionState.mLogUri != null) { 856 SomeArgs args = SomeArgs.obtain(); 857 args.arg1 = sessionState.mLogUri; 858 args.arg2 = currentTime; 859 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args) 860 .sendToTarget(); 861 } 862 863 // Create a log entry and fill it later. 864 String packageName = userState.inputMap.get(sessionState.mInputId).mInfo 865 .getServiceInfo().packageName; 866 ContentValues values = new ContentValues(); 867 values.put(TvContract.WatchedPrograms.COLUMN_PACKAGE_NAME, packageName); 868 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 869 currentTime); 870 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 0); 871 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 872 873 sessionState.mLogUri = mContentResolver.insert( 874 TvContract.WatchedPrograms.CONTENT_URI, values); 875 SomeArgs args = SomeArgs.obtain(); 876 args.arg1 = sessionState.mLogUri; 877 args.arg2 = ContentUris.parseId(channelUri); 878 args.arg3 = currentTime; 879 mLogHandler.obtainMessage(LogHandler.MSG_OPEN_ENTRY, args).sendToTarget(); 880 } catch (RemoteException e) { 881 Slog.e(TAG, "error in tune", e); 882 return; 883 } 884 } 885 } finally { 886 Binder.restoreCallingIdentity(identity); 887 } 888 } 889 890 @Override 891 public void setCaptionEnabled(IBinder sessionToken, boolean enabled, int userId) { 892 final int callingUid = Binder.getCallingUid(); 893 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 894 userId, "setCaptionEnabled"); 895 final long identity = Binder.clearCallingIdentity(); 896 try { 897 synchronized (mLock) { 898 try { 899 getSessionLocked(sessionToken, callingUid, resolvedUserId) 900 .setCaptionEnabled(enabled); 901 } catch (RemoteException e) { 902 Slog.e(TAG, "error in setCaptionEnabled", e); 903 } 904 } 905 } finally { 906 Binder.restoreCallingIdentity(identity); 907 } 908 } 909 910 @Override 911 public void selectTrack(IBinder sessionToken, TvTrackInfo track, int userId) { 912 final int callingUid = Binder.getCallingUid(); 913 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 914 userId, "selectTrack"); 915 final long identity = Binder.clearCallingIdentity(); 916 try { 917 synchronized (mLock) { 918 try { 919 getSessionLocked(sessionToken, callingUid, resolvedUserId).selectTrack( 920 track); 921 } catch (RemoteException e) { 922 Slog.e(TAG, "error in selectTrack", e); 923 } 924 } 925 } finally { 926 Binder.restoreCallingIdentity(identity); 927 } 928 } 929 930 @Override 931 public void unselectTrack(IBinder sessionToken, TvTrackInfo track, int userId) { 932 final int callingUid = Binder.getCallingUid(); 933 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 934 userId, "unselectTrack"); 935 final long identity = Binder.clearCallingIdentity(); 936 try { 937 synchronized (mLock) { 938 try { 939 getSessionLocked(sessionToken, callingUid, resolvedUserId).unselectTrack( 940 track); 941 } catch (RemoteException e) { 942 Slog.e(TAG, "error in unselectTrack", e); 943 } 944 } 945 } finally { 946 Binder.restoreCallingIdentity(identity); 947 } 948 } 949 950 @Override 951 public void createOverlayView(IBinder sessionToken, IBinder windowToken, Rect frame, 952 int userId) { 953 final int callingUid = Binder.getCallingUid(); 954 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 955 userId, "createOverlayView"); 956 final long identity = Binder.clearCallingIdentity(); 957 try { 958 synchronized (mLock) { 959 try { 960 getSessionLocked(sessionToken, callingUid, resolvedUserId) 961 .createOverlayView(windowToken, frame); 962 } catch (RemoteException e) { 963 Slog.e(TAG, "error in createOverlayView", e); 964 } 965 } 966 } finally { 967 Binder.restoreCallingIdentity(identity); 968 } 969 } 970 971 @Override 972 public void relayoutOverlayView(IBinder sessionToken, Rect frame, int userId) { 973 final int callingUid = Binder.getCallingUid(); 974 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 975 userId, "relayoutOverlayView"); 976 final long identity = Binder.clearCallingIdentity(); 977 try { 978 synchronized (mLock) { 979 try { 980 getSessionLocked(sessionToken, callingUid, resolvedUserId) 981 .relayoutOverlayView(frame); 982 } catch (RemoteException e) { 983 Slog.e(TAG, "error in relayoutOverlayView", e); 984 } 985 } 986 } finally { 987 Binder.restoreCallingIdentity(identity); 988 } 989 } 990 991 @Override 992 public void removeOverlayView(IBinder sessionToken, int userId) { 993 final int callingUid = Binder.getCallingUid(); 994 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 995 userId, "removeOverlayView"); 996 final long identity = Binder.clearCallingIdentity(); 997 try { 998 synchronized (mLock) { 999 try { 1000 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1001 .removeOverlayView(); 1002 } catch (RemoteException e) { 1003 Slog.e(TAG, "error in removeOverlayView", e); 1004 } 1005 } 1006 } finally { 1007 Binder.restoreCallingIdentity(identity); 1008 } 1009 } 1010 1011 @Override 1012 public List<TvInputHardwareInfo> getHardwareList() throws RemoteException { 1013 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1014 != PackageManager.PERMISSION_GRANTED) { 1015 return null; 1016 } 1017 1018 final long identity = Binder.clearCallingIdentity(); 1019 try { 1020 return mTvInputHardwareManager.getHardwareList(); 1021 } finally { 1022 Binder.restoreCallingIdentity(identity); 1023 } 1024 } 1025 1026 @Override 1027 public void registerTvInputInfo(TvInputInfo info, int deviceId) { 1028 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1029 != PackageManager.PERMISSION_GRANTED) { 1030 return; 1031 } 1032 1033 final long identity = Binder.clearCallingIdentity(); 1034 try { 1035 mTvInputHardwareManager.registerTvInputInfo(info, deviceId); 1036 } finally { 1037 Binder.restoreCallingIdentity(identity); 1038 } 1039 } 1040 1041 @Override 1042 public ITvInputHardware acquireTvInputHardware(int deviceId, 1043 ITvInputHardwareCallback callback, TvInputInfo info, int userId) 1044 throws RemoteException { 1045 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1046 != PackageManager.PERMISSION_GRANTED) { 1047 return null; 1048 } 1049 1050 final long identity = Binder.clearCallingIdentity(); 1051 final int callingUid = Binder.getCallingUid(); 1052 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1053 userId, "acquireTvInputHardware"); 1054 try { 1055 return mTvInputHardwareManager.acquireHardware( 1056 deviceId, callback, info, callingUid, resolvedUserId); 1057 } finally { 1058 Binder.restoreCallingIdentity(identity); 1059 } 1060 } 1061 1062 @Override 1063 public void releaseTvInputHardware(int deviceId, ITvInputHardware hardware, int userId) 1064 throws RemoteException { 1065 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1066 != PackageManager.PERMISSION_GRANTED) { 1067 return; 1068 } 1069 1070 final long identity = Binder.clearCallingIdentity(); 1071 final int callingUid = Binder.getCallingUid(); 1072 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1073 userId, "releaseTvInputHardware"); 1074 try { 1075 mTvInputHardwareManager.releaseHardware( 1076 deviceId, hardware, callingUid, resolvedUserId); 1077 } finally { 1078 Binder.restoreCallingIdentity(identity); 1079 } 1080 } 1081 1082 @Override 1083 @SuppressWarnings("resource") 1084 protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) { 1085 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1086 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 1087 != PackageManager.PERMISSION_GRANTED) { 1088 pw.println("Permission Denial: can't dump TvInputManager from pid=" 1089 + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); 1090 return; 1091 } 1092 1093 synchronized (mLock) { 1094 pw.println("User Ids (Current user: " + mCurrentUserId + "):"); 1095 pw.increaseIndent(); 1096 for (int i = 0; i < mUserStates.size(); i++) { 1097 int userId = mUserStates.keyAt(i); 1098 pw.println(Integer.valueOf(userId)); 1099 } 1100 pw.decreaseIndent(); 1101 1102 for (int i = 0; i < mUserStates.size(); i++) { 1103 int userId = mUserStates.keyAt(i); 1104 UserState userState = getUserStateLocked(userId); 1105 pw.println("UserState (" + userId + "):"); 1106 pw.increaseIndent(); 1107 1108 pw.println("inputMap: inputId -> TvInputState"); 1109 pw.increaseIndent(); 1110 for (TvInputState state : userState.inputMap.values()) { 1111 pw.println(state.toString()); 1112 } 1113 pw.decreaseIndent(); 1114 1115 pw.println("packageSet:"); 1116 pw.increaseIndent(); 1117 for (String packageName : userState.packageSet) { 1118 pw.println(packageName); 1119 } 1120 pw.decreaseIndent(); 1121 1122 pw.println("clientStateMap: ITvInputClient -> ClientState"); 1123 pw.increaseIndent(); 1124 for (Map.Entry<IBinder, ClientState> entry : 1125 userState.clientStateMap.entrySet()) { 1126 ClientState client = entry.getValue(); 1127 pw.println(entry.getKey() + ": " + client); 1128 1129 pw.increaseIndent(); 1130 1131 pw.println("mInputIds:"); 1132 pw.increaseIndent(); 1133 for (String inputId : client.mInputIds) { 1134 pw.println(inputId); 1135 } 1136 pw.decreaseIndent(); 1137 1138 pw.println("mSessionTokens:"); 1139 pw.increaseIndent(); 1140 for (IBinder token : client.mSessionTokens) { 1141 pw.println("" + token); 1142 } 1143 pw.decreaseIndent(); 1144 1145 pw.println("mClientTokens: " + client.mClientToken); 1146 pw.println("mUserId: " + client.mUserId); 1147 1148 pw.decreaseIndent(); 1149 } 1150 pw.decreaseIndent(); 1151 1152 pw.println("serviceStateMap: inputId -> ServiceState"); 1153 pw.increaseIndent(); 1154 for (Map.Entry<String, ServiceState> entry : 1155 userState.serviceStateMap.entrySet()) { 1156 ServiceState service = entry.getValue(); 1157 pw.println(entry.getKey() + ": " + service); 1158 1159 pw.increaseIndent(); 1160 1161 pw.println("mClientTokens:"); 1162 pw.increaseIndent(); 1163 for (IBinder token : service.mClientTokens) { 1164 pw.println("" + token); 1165 } 1166 pw.decreaseIndent(); 1167 1168 pw.println("mSessionTokens:"); 1169 pw.increaseIndent(); 1170 for (IBinder token : service.mSessionTokens) { 1171 pw.println("" + token); 1172 } 1173 pw.decreaseIndent(); 1174 1175 pw.println("mService: " + service.mService); 1176 pw.println("mCallback: " + service.mCallback); 1177 pw.println("mBound: " + service.mBound); 1178 pw.println("mReconnecting: " + service.mReconnecting); 1179 1180 pw.decreaseIndent(); 1181 } 1182 pw.decreaseIndent(); 1183 1184 pw.println("sessionStateMap: ITvInputSession -> SessionState"); 1185 pw.increaseIndent(); 1186 for (Map.Entry<IBinder, SessionState> entry : 1187 userState.sessionStateMap.entrySet()) { 1188 SessionState session = entry.getValue(); 1189 pw.println(entry.getKey() + ": " + session); 1190 1191 pw.increaseIndent(); 1192 pw.println("mInputId: " + session.mInputId); 1193 pw.println("mClient: " + session.mClient); 1194 pw.println("mSeq: " + session.mSeq); 1195 pw.println("mCallingUid: " + session.mCallingUid); 1196 pw.println("mUserId: " + session.mUserId); 1197 pw.println("mSessionToken: " + session.mSessionToken); 1198 pw.println("mSession: " + session.mSession); 1199 pw.println("mLogUri: " + session.mLogUri); 1200 pw.decreaseIndent(); 1201 } 1202 pw.decreaseIndent(); 1203 1204 pw.println("callbackSet:"); 1205 pw.increaseIndent(); 1206 for (ITvInputManagerCallback callback : userState.callbackSet) { 1207 pw.println(callback.toString()); 1208 } 1209 pw.decreaseIndent(); 1210 1211 pw.decreaseIndent(); 1212 } 1213 } 1214 } 1215 } 1216 1217 private static final class TvInputState { 1218 // A TvInputInfo object which represents the TV input. 1219 private TvInputInfo mInfo; 1220 1221 // The state of TV input. Connected by default. 1222 private int mState = INPUT_STATE_CONNECTED; 1223 1224 @Override 1225 public String toString() { 1226 return "mInfo: " + mInfo + "; mState: " + mState; 1227 } 1228 } 1229 1230 private static final class UserState { 1231 // A mapping from the TV input id to its TvInputState. 1232 private Map<String, TvInputState> inputMap = new HashMap<String, TvInputState>(); 1233 1234 // A set of all TV input packages. 1235 private final Set<String> packageSet = new HashSet<String>(); 1236 1237 // A mapping from the token of a client to its state. 1238 private final Map<IBinder, ClientState> clientStateMap = 1239 new HashMap<IBinder, ClientState>(); 1240 1241 // A mapping from the name of a TV input service to its state. 1242 private final Map<String, ServiceState> serviceStateMap = 1243 new HashMap<String, ServiceState>(); 1244 1245 // A mapping from the token of a TV input session to its state. 1246 private final Map<IBinder, SessionState> sessionStateMap = 1247 new HashMap<IBinder, SessionState>(); 1248 1249 // A set of callbacks. 1250 private final Set<ITvInputManagerCallback> callbackSet = 1251 new HashSet<ITvInputManagerCallback>(); 1252 } 1253 1254 private final class ClientState implements IBinder.DeathRecipient { 1255 private final List<String> mInputIds = new ArrayList<String>(); 1256 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1257 1258 private IBinder mClientToken; 1259 private final int mUserId; 1260 1261 ClientState(IBinder clientToken, int userId) { 1262 mClientToken = clientToken; 1263 mUserId = userId; 1264 } 1265 1266 public boolean isEmpty() { 1267 return mInputIds.isEmpty() && mSessionTokens.isEmpty(); 1268 } 1269 1270 @Override 1271 public void binderDied() { 1272 synchronized (mLock) { 1273 UserState userState = getUserStateLocked(mUserId); 1274 // DO NOT remove the client state of clientStateMap in this method. It will be 1275 // removed in releaseSessionLocked() or unregisterClientInternalLocked(). 1276 ClientState clientState = userState.clientStateMap.get(mClientToken); 1277 if (clientState != null) { 1278 while (clientState.mSessionTokens.size() > 0) { 1279 releaseSessionLocked( 1280 clientState.mSessionTokens.get(0), Process.SYSTEM_UID, mUserId); 1281 } 1282 while (clientState.mInputIds.size() > 0) { 1283 unregisterClientInternalLocked( 1284 mClientToken, clientState.mInputIds.get(0), mUserId); 1285 } 1286 } 1287 mClientToken = null; 1288 } 1289 } 1290 } 1291 1292 private final class ServiceState { 1293 private final List<IBinder> mClientTokens = new ArrayList<IBinder>(); 1294 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1295 private final ServiceConnection mConnection; 1296 private final TvInputInfo mTvInputInfo; 1297 1298 private ITvInputService mService; 1299 private ServiceCallback mCallback; 1300 private boolean mBound; 1301 private boolean mReconnecting; 1302 1303 private ServiceState(TvInputInfo inputInfo, int userId) { 1304 mTvInputInfo = inputInfo; 1305 mConnection = new InputServiceConnection(inputInfo, userId); 1306 } 1307 } 1308 1309 private final class SessionState implements IBinder.DeathRecipient { 1310 private final String mInputId; 1311 private final ITvInputClient mClient; 1312 private final int mSeq; 1313 private final int mCallingUid; 1314 private final int mUserId; 1315 private final IBinder mSessionToken; 1316 private ITvInputSession mSession; 1317 private Uri mLogUri; 1318 1319 private SessionState(IBinder sessionToken, String inputId, ITvInputClient client, int seq, 1320 int callingUid, int userId) { 1321 mSessionToken = sessionToken; 1322 mInputId = inputId; 1323 mClient = client; 1324 mSeq = seq; 1325 mCallingUid = callingUid; 1326 mUserId = userId; 1327 } 1328 1329 @Override 1330 public void binderDied() { 1331 synchronized (mLock) { 1332 mSession = null; 1333 if (mClient != null) { 1334 try { 1335 mClient.onSessionReleased(mSeq); 1336 } catch(RemoteException e) { 1337 Slog.e(TAG, "error in onSessionReleased", e); 1338 } 1339 } 1340 removeSessionStateLocked(mSessionToken, mUserId); 1341 } 1342 } 1343 } 1344 1345 private final class InputServiceConnection implements ServiceConnection { 1346 private final TvInputInfo mTvInputInfo; 1347 private final int mUserId; 1348 1349 private InputServiceConnection(TvInputInfo inputInfo, int userId) { 1350 mUserId = userId; 1351 mTvInputInfo = inputInfo; 1352 } 1353 1354 @Override 1355 public void onServiceConnected(ComponentName name, IBinder service) { 1356 String inputId = mTvInputInfo.getId(); 1357 if (DEBUG) { 1358 Slog.d(TAG, "onServiceConnected(inputId=" + inputId + ")"); 1359 } 1360 synchronized (mLock) { 1361 UserState userState = getUserStateLocked(mUserId); 1362 ServiceState serviceState = userState.serviceStateMap.get(inputId); 1363 serviceState.mService = ITvInputService.Stub.asInterface(service); 1364 1365 // Register a callback, if we need to. 1366 if (!serviceState.mClientTokens.isEmpty() && serviceState.mCallback == null) { 1367 serviceState.mCallback = new ServiceCallback(mTvInputInfo.getId(), mUserId); 1368 try { 1369 serviceState.mService.registerCallback(serviceState.mCallback); 1370 } catch (RemoteException e) { 1371 Slog.e(TAG, "error in registerCallback", e); 1372 } 1373 } 1374 1375 // And create sessions, if any. 1376 for (IBinder sessionToken : serviceState.mSessionTokens) { 1377 createSessionInternalLocked(serviceState.mService, sessionToken, mUserId); 1378 } 1379 1380 TvInputState inputState = userState.inputMap.get(inputId); 1381 if (inputState != null && inputState.mState != INPUT_STATE_DISCONNECTED) { 1382 notifyStateChangedLocked(userState, mTvInputInfo.getId(), 1383 inputState.mState, null); 1384 } 1385 } 1386 } 1387 1388 @Override 1389 public void onServiceDisconnected(ComponentName name) { 1390 if (DEBUG) { 1391 Slog.d(TAG, "onServiceDisconnected(inputId=" + mTvInputInfo.getId() + ")"); 1392 } 1393 if (!mTvInputInfo.getComponent().equals(name)) { 1394 throw new IllegalArgumentException("Mismatched ComponentName: " 1395 + mTvInputInfo.getComponent() + " (expected), " + name + " (actual)."); 1396 } 1397 synchronized (mLock) { 1398 UserState userState = getUserStateLocked(mUserId); 1399 ServiceState serviceState = userState.serviceStateMap.get(mTvInputInfo.getId()); 1400 if (serviceState != null) { 1401 serviceState.mReconnecting = true; 1402 serviceState.mBound = false; 1403 serviceState.mService = null; 1404 serviceState.mCallback = null; 1405 1406 // Send null tokens for not finishing create session events. 1407 for (IBinder sessionToken : serviceState.mSessionTokens) { 1408 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1409 if (sessionState.mSession == null) { 1410 removeSessionStateLocked(sessionToken, sessionState.mUserId); 1411 sendSessionTokenToClientLocked(sessionState.mClient, 1412 sessionState.mInputId, null, null, sessionState.mSeq); 1413 } 1414 } 1415 1416 notifyStateChangedLocked(userState, mTvInputInfo.getId(), 1417 INPUT_STATE_DISCONNECTED, null); 1418 updateServiceConnectionLocked(mTvInputInfo.getId(), mUserId); 1419 } 1420 } 1421 } 1422 } 1423 1424 private final class ServiceCallback extends ITvInputServiceCallback.Stub { 1425 private final String mInputId; 1426 private final int mUserId; 1427 1428 ServiceCallback(String inputId, int userId) { 1429 mInputId = inputId; 1430 mUserId = userId; 1431 } 1432 1433 @Override 1434 public void onInputStateChanged(int state) { 1435 if (DEBUG) { 1436 Slog.d(TAG, "onInputStateChanged(inputId=" + mInputId + ", state=" 1437 + state + ")"); 1438 } 1439 synchronized (mLock) { 1440 setStateLocked(mInputId, state, mUserId); 1441 } 1442 } 1443 } 1444 1445 private final class LogHandler extends Handler { 1446 private static final int MSG_OPEN_ENTRY = 1; 1447 private static final int MSG_UPDATE_ENTRY = 2; 1448 private static final int MSG_CLOSE_ENTRY = 3; 1449 1450 public LogHandler(Looper looper) { 1451 super(looper); 1452 } 1453 1454 @Override 1455 public void handleMessage(Message msg) { 1456 switch (msg.what) { 1457 case MSG_OPEN_ENTRY: { 1458 SomeArgs args = (SomeArgs) msg.obj; 1459 Uri uri = (Uri) args.arg1; 1460 long channelId = (long) args.arg2; 1461 long time = (long) args.arg3; 1462 onOpenEntry(uri, channelId, time); 1463 args.recycle(); 1464 return; 1465 } 1466 case MSG_UPDATE_ENTRY: { 1467 SomeArgs args = (SomeArgs) msg.obj; 1468 Uri uri = (Uri) args.arg1; 1469 long channelId = (long) args.arg2; 1470 long time = (long) args.arg3; 1471 onUpdateEntry(uri, channelId, time); 1472 args.recycle(); 1473 return; 1474 } 1475 case MSG_CLOSE_ENTRY: { 1476 SomeArgs args = (SomeArgs) msg.obj; 1477 Uri uri = (Uri) args.arg1; 1478 long time = (long) args.arg2; 1479 onCloseEntry(uri, time); 1480 args.recycle(); 1481 return; 1482 } 1483 default: { 1484 Slog.w(TAG, "Unhandled message code: " + msg.what); 1485 return; 1486 } 1487 } 1488 } 1489 1490 private void onOpenEntry(Uri uri, long channelId, long watchStarttime) { 1491 String[] projection = { 1492 TvContract.Programs.COLUMN_TITLE, 1493 TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS, 1494 TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS, 1495 TvContract.Programs.COLUMN_SHORT_DESCRIPTION 1496 }; 1497 String selection = TvContract.Programs.COLUMN_CHANNEL_ID + "=? AND " 1498 + TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + "<=? AND " 1499 + TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS + ">?"; 1500 String[] selectionArgs = { 1501 String.valueOf(channelId), 1502 String.valueOf(watchStarttime), 1503 String.valueOf(watchStarttime) 1504 }; 1505 String sortOrder = TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + " ASC"; 1506 Cursor cursor = null; 1507 try { 1508 cursor = mContentResolver.query(TvContract.Programs.CONTENT_URI, projection, 1509 selection, selectionArgs, sortOrder); 1510 if (cursor != null && cursor.moveToNext()) { 1511 ContentValues values = new ContentValues(); 1512 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, cursor.getString(0)); 1513 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1514 cursor.getLong(1)); 1515 long endTime = cursor.getLong(2); 1516 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1517 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, cursor.getString(3)); 1518 mContentResolver.update(uri, values, null, null); 1519 1520 // Schedule an update when the current program ends. 1521 SomeArgs args = SomeArgs.obtain(); 1522 args.arg1 = uri; 1523 args.arg2 = channelId; 1524 args.arg3 = endTime; 1525 Message msg = obtainMessage(LogHandler.MSG_UPDATE_ENTRY, args); 1526 sendMessageDelayed(msg, endTime - System.currentTimeMillis()); 1527 } 1528 } finally { 1529 if (cursor != null) { 1530 cursor.close(); 1531 } 1532 } 1533 } 1534 1535 private void onUpdateEntry(Uri uri, long channelId, long time) { 1536 String[] projection = { 1537 TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1538 TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 1539 TvContract.WatchedPrograms.COLUMN_TITLE, 1540 TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1541 TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, 1542 TvContract.WatchedPrograms.COLUMN_DESCRIPTION 1543 }; 1544 Cursor cursor = null; 1545 try { 1546 cursor = mContentResolver.query(uri, projection, null, null, null); 1547 if (cursor != null && cursor.moveToNext()) { 1548 long watchStartTime = cursor.getLong(0); 1549 long watchEndTime = cursor.getLong(1); 1550 String title = cursor.getString(2); 1551 long startTime = cursor.getLong(3); 1552 long endTime = cursor.getLong(4); 1553 String description = cursor.getString(5); 1554 1555 // Do nothing if the current log entry is already closed. 1556 if (watchEndTime > 0) { 1557 return; 1558 } 1559 1560 // The current program has just ended. Create a (complete) log entry off the 1561 // current entry. 1562 ContentValues values = new ContentValues(); 1563 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1564 watchStartTime); 1565 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, time); 1566 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 1567 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, title); 1568 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, startTime); 1569 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1570 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, description); 1571 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 1572 } 1573 } finally { 1574 if (cursor != null) { 1575 cursor.close(); 1576 } 1577 } 1578 // Re-open the current log entry with the next program information. 1579 onOpenEntry(uri, channelId, time); 1580 } 1581 1582 private void onCloseEntry(Uri uri, long watchEndTime) { 1583 ContentValues values = new ContentValues(); 1584 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, watchEndTime); 1585 mContentResolver.update(uri, values, null, null); 1586 } 1587 } 1588 1589 final class Client { 1590 public void setState(String inputId, int state) { 1591 synchronized (mLock) { 1592 setStateLocked(inputId, state, mCurrentUserId); 1593 } 1594 } 1595 } 1596} 1597