TvInputManagerService.java revision e821d711db1799dc51661a3ed6188f3cd942bae7
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 dispatchSurfaceChanged(IBinder sessionToken, int format, int width, 820 int height, int userId) { 821 final int callingUid = Binder.getCallingUid(); 822 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 823 userId, "dispatchSurfaceChanged"); 824 final long identity = Binder.clearCallingIdentity(); 825 try { 826 synchronized (mLock) { 827 try { 828 getSessionLocked(sessionToken, callingUid, resolvedUserId) 829 .dispatchSurfaceChanged(format, width, height); 830 } catch (RemoteException e) { 831 Slog.e(TAG, "error in dispatchSurfaceChanged", e); 832 } 833 } 834 } finally { 835 Binder.restoreCallingIdentity(identity); 836 } 837 } 838 839 @Override 840 public void setVolume(IBinder sessionToken, float volume, int userId) { 841 final int callingUid = Binder.getCallingUid(); 842 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 843 userId, "setVolume"); 844 final long identity = Binder.clearCallingIdentity(); 845 try { 846 synchronized (mLock) { 847 try { 848 getSessionLocked(sessionToken, callingUid, resolvedUserId).setVolume( 849 volume); 850 } catch (RemoteException e) { 851 Slog.e(TAG, "error in setVolume", e); 852 } 853 } 854 } finally { 855 Binder.restoreCallingIdentity(identity); 856 } 857 } 858 859 @Override 860 public void tune(IBinder sessionToken, final Uri channelUri, int userId) { 861 final int callingUid = Binder.getCallingUid(); 862 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 863 userId, "tune"); 864 final long identity = Binder.clearCallingIdentity(); 865 try { 866 synchronized (mLock) { 867 try { 868 getSessionLocked(sessionToken, callingUid, resolvedUserId).tune(channelUri); 869 870 long currentTime = System.currentTimeMillis(); 871 long channelId = ContentUris.parseId(channelUri); 872 873 // Close the open log entry first, if any. 874 UserState userState = getUserStateLocked(resolvedUserId); 875 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 876 if (sessionState.mLogUri != null) { 877 SomeArgs args = SomeArgs.obtain(); 878 args.arg1 = sessionState.mLogUri; 879 args.arg2 = currentTime; 880 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args) 881 .sendToTarget(); 882 } 883 884 // Create a log entry and fill it later. 885 String packageName = userState.inputMap.get(sessionState.mInputId).mInfo 886 .getServiceInfo().packageName; 887 ContentValues values = new ContentValues(); 888 values.put(TvContract.WatchedPrograms.COLUMN_PACKAGE_NAME, packageName); 889 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 890 currentTime); 891 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 0); 892 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 893 894 sessionState.mLogUri = mContentResolver.insert( 895 TvContract.WatchedPrograms.CONTENT_URI, values); 896 SomeArgs args = SomeArgs.obtain(); 897 args.arg1 = sessionState.mLogUri; 898 args.arg2 = ContentUris.parseId(channelUri); 899 args.arg3 = currentTime; 900 mLogHandler.obtainMessage(LogHandler.MSG_OPEN_ENTRY, args).sendToTarget(); 901 } catch (RemoteException e) { 902 Slog.e(TAG, "error in tune", e); 903 return; 904 } 905 } 906 } finally { 907 Binder.restoreCallingIdentity(identity); 908 } 909 } 910 911 @Override 912 public void setCaptionEnabled(IBinder sessionToken, boolean enabled, int userId) { 913 final int callingUid = Binder.getCallingUid(); 914 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 915 userId, "setCaptionEnabled"); 916 final long identity = Binder.clearCallingIdentity(); 917 try { 918 synchronized (mLock) { 919 try { 920 getSessionLocked(sessionToken, callingUid, resolvedUserId) 921 .setCaptionEnabled(enabled); 922 } catch (RemoteException e) { 923 Slog.e(TAG, "error in setCaptionEnabled", e); 924 } 925 } 926 } finally { 927 Binder.restoreCallingIdentity(identity); 928 } 929 } 930 931 @Override 932 public void selectTrack(IBinder sessionToken, TvTrackInfo track, int userId) { 933 final int callingUid = Binder.getCallingUid(); 934 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 935 userId, "selectTrack"); 936 final long identity = Binder.clearCallingIdentity(); 937 try { 938 synchronized (mLock) { 939 try { 940 getSessionLocked(sessionToken, callingUid, resolvedUserId).selectTrack( 941 track); 942 } catch (RemoteException e) { 943 Slog.e(TAG, "error in selectTrack", e); 944 } 945 } 946 } finally { 947 Binder.restoreCallingIdentity(identity); 948 } 949 } 950 951 @Override 952 public void unselectTrack(IBinder sessionToken, TvTrackInfo track, int userId) { 953 final int callingUid = Binder.getCallingUid(); 954 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 955 userId, "unselectTrack"); 956 final long identity = Binder.clearCallingIdentity(); 957 try { 958 synchronized (mLock) { 959 try { 960 getSessionLocked(sessionToken, callingUid, resolvedUserId).unselectTrack( 961 track); 962 } catch (RemoteException e) { 963 Slog.e(TAG, "error in unselectTrack", e); 964 } 965 } 966 } finally { 967 Binder.restoreCallingIdentity(identity); 968 } 969 } 970 971 @Override 972 public void createOverlayView(IBinder sessionToken, IBinder windowToken, Rect frame, 973 int userId) { 974 final int callingUid = Binder.getCallingUid(); 975 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 976 userId, "createOverlayView"); 977 final long identity = Binder.clearCallingIdentity(); 978 try { 979 synchronized (mLock) { 980 try { 981 getSessionLocked(sessionToken, callingUid, resolvedUserId) 982 .createOverlayView(windowToken, frame); 983 } catch (RemoteException e) { 984 Slog.e(TAG, "error in createOverlayView", e); 985 } 986 } 987 } finally { 988 Binder.restoreCallingIdentity(identity); 989 } 990 } 991 992 @Override 993 public void relayoutOverlayView(IBinder sessionToken, Rect frame, int userId) { 994 final int callingUid = Binder.getCallingUid(); 995 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 996 userId, "relayoutOverlayView"); 997 final long identity = Binder.clearCallingIdentity(); 998 try { 999 synchronized (mLock) { 1000 try { 1001 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1002 .relayoutOverlayView(frame); 1003 } catch (RemoteException e) { 1004 Slog.e(TAG, "error in relayoutOverlayView", e); 1005 } 1006 } 1007 } finally { 1008 Binder.restoreCallingIdentity(identity); 1009 } 1010 } 1011 1012 @Override 1013 public void removeOverlayView(IBinder sessionToken, int userId) { 1014 final int callingUid = Binder.getCallingUid(); 1015 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1016 userId, "removeOverlayView"); 1017 final long identity = Binder.clearCallingIdentity(); 1018 try { 1019 synchronized (mLock) { 1020 try { 1021 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1022 .removeOverlayView(); 1023 } catch (RemoteException e) { 1024 Slog.e(TAG, "error in removeOverlayView", e); 1025 } 1026 } 1027 } finally { 1028 Binder.restoreCallingIdentity(identity); 1029 } 1030 } 1031 1032 @Override 1033 public List<TvInputHardwareInfo> getHardwareList() throws RemoteException { 1034 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1035 != PackageManager.PERMISSION_GRANTED) { 1036 return null; 1037 } 1038 1039 final long identity = Binder.clearCallingIdentity(); 1040 try { 1041 return mTvInputHardwareManager.getHardwareList(); 1042 } finally { 1043 Binder.restoreCallingIdentity(identity); 1044 } 1045 } 1046 1047 @Override 1048 public void registerTvInputInfo(TvInputInfo info, int deviceId) { 1049 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1050 != PackageManager.PERMISSION_GRANTED) { 1051 return; 1052 } 1053 1054 final long identity = Binder.clearCallingIdentity(); 1055 try { 1056 mTvInputHardwareManager.registerTvInputInfo(info, deviceId); 1057 } finally { 1058 Binder.restoreCallingIdentity(identity); 1059 } 1060 } 1061 1062 @Override 1063 public ITvInputHardware acquireTvInputHardware(int deviceId, 1064 ITvInputHardwareCallback callback, TvInputInfo info, int userId) 1065 throws RemoteException { 1066 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1067 != PackageManager.PERMISSION_GRANTED) { 1068 return null; 1069 } 1070 1071 final long identity = Binder.clearCallingIdentity(); 1072 final int callingUid = Binder.getCallingUid(); 1073 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1074 userId, "acquireTvInputHardware"); 1075 try { 1076 return mTvInputHardwareManager.acquireHardware( 1077 deviceId, callback, info, callingUid, resolvedUserId); 1078 } finally { 1079 Binder.restoreCallingIdentity(identity); 1080 } 1081 } 1082 1083 @Override 1084 public void releaseTvInputHardware(int deviceId, ITvInputHardware hardware, int userId) 1085 throws RemoteException { 1086 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1087 != PackageManager.PERMISSION_GRANTED) { 1088 return; 1089 } 1090 1091 final long identity = Binder.clearCallingIdentity(); 1092 final int callingUid = Binder.getCallingUid(); 1093 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1094 userId, "releaseTvInputHardware"); 1095 try { 1096 mTvInputHardwareManager.releaseHardware( 1097 deviceId, hardware, callingUid, resolvedUserId); 1098 } finally { 1099 Binder.restoreCallingIdentity(identity); 1100 } 1101 } 1102 1103 @Override 1104 @SuppressWarnings("resource") 1105 protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) { 1106 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1107 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 1108 != PackageManager.PERMISSION_GRANTED) { 1109 pw.println("Permission Denial: can't dump TvInputManager from pid=" 1110 + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); 1111 return; 1112 } 1113 1114 synchronized (mLock) { 1115 pw.println("User Ids (Current user: " + mCurrentUserId + "):"); 1116 pw.increaseIndent(); 1117 for (int i = 0; i < mUserStates.size(); i++) { 1118 int userId = mUserStates.keyAt(i); 1119 pw.println(Integer.valueOf(userId)); 1120 } 1121 pw.decreaseIndent(); 1122 1123 for (int i = 0; i < mUserStates.size(); i++) { 1124 int userId = mUserStates.keyAt(i); 1125 UserState userState = getUserStateLocked(userId); 1126 pw.println("UserState (" + userId + "):"); 1127 pw.increaseIndent(); 1128 1129 pw.println("inputMap: inputId -> TvInputState"); 1130 pw.increaseIndent(); 1131 for (TvInputState state : userState.inputMap.values()) { 1132 pw.println(state.toString()); 1133 } 1134 pw.decreaseIndent(); 1135 1136 pw.println("packageSet:"); 1137 pw.increaseIndent(); 1138 for (String packageName : userState.packageSet) { 1139 pw.println(packageName); 1140 } 1141 pw.decreaseIndent(); 1142 1143 pw.println("clientStateMap: ITvInputClient -> ClientState"); 1144 pw.increaseIndent(); 1145 for (Map.Entry<IBinder, ClientState> entry : 1146 userState.clientStateMap.entrySet()) { 1147 ClientState client = entry.getValue(); 1148 pw.println(entry.getKey() + ": " + client); 1149 1150 pw.increaseIndent(); 1151 1152 pw.println("mInputIds:"); 1153 pw.increaseIndent(); 1154 for (String inputId : client.mInputIds) { 1155 pw.println(inputId); 1156 } 1157 pw.decreaseIndent(); 1158 1159 pw.println("mSessionTokens:"); 1160 pw.increaseIndent(); 1161 for (IBinder token : client.mSessionTokens) { 1162 pw.println("" + token); 1163 } 1164 pw.decreaseIndent(); 1165 1166 pw.println("mClientTokens: " + client.mClientToken); 1167 pw.println("mUserId: " + client.mUserId); 1168 1169 pw.decreaseIndent(); 1170 } 1171 pw.decreaseIndent(); 1172 1173 pw.println("serviceStateMap: inputId -> ServiceState"); 1174 pw.increaseIndent(); 1175 for (Map.Entry<String, ServiceState> entry : 1176 userState.serviceStateMap.entrySet()) { 1177 ServiceState service = entry.getValue(); 1178 pw.println(entry.getKey() + ": " + service); 1179 1180 pw.increaseIndent(); 1181 1182 pw.println("mClientTokens:"); 1183 pw.increaseIndent(); 1184 for (IBinder token : service.mClientTokens) { 1185 pw.println("" + token); 1186 } 1187 pw.decreaseIndent(); 1188 1189 pw.println("mSessionTokens:"); 1190 pw.increaseIndent(); 1191 for (IBinder token : service.mSessionTokens) { 1192 pw.println("" + token); 1193 } 1194 pw.decreaseIndent(); 1195 1196 pw.println("mService: " + service.mService); 1197 pw.println("mCallback: " + service.mCallback); 1198 pw.println("mBound: " + service.mBound); 1199 pw.println("mReconnecting: " + service.mReconnecting); 1200 1201 pw.decreaseIndent(); 1202 } 1203 pw.decreaseIndent(); 1204 1205 pw.println("sessionStateMap: ITvInputSession -> SessionState"); 1206 pw.increaseIndent(); 1207 for (Map.Entry<IBinder, SessionState> entry : 1208 userState.sessionStateMap.entrySet()) { 1209 SessionState session = entry.getValue(); 1210 pw.println(entry.getKey() + ": " + session); 1211 1212 pw.increaseIndent(); 1213 pw.println("mInputId: " + session.mInputId); 1214 pw.println("mClient: " + session.mClient); 1215 pw.println("mSeq: " + session.mSeq); 1216 pw.println("mCallingUid: " + session.mCallingUid); 1217 pw.println("mUserId: " + session.mUserId); 1218 pw.println("mSessionToken: " + session.mSessionToken); 1219 pw.println("mSession: " + session.mSession); 1220 pw.println("mLogUri: " + session.mLogUri); 1221 pw.decreaseIndent(); 1222 } 1223 pw.decreaseIndent(); 1224 1225 pw.println("callbackSet:"); 1226 pw.increaseIndent(); 1227 for (ITvInputManagerCallback callback : userState.callbackSet) { 1228 pw.println(callback.toString()); 1229 } 1230 pw.decreaseIndent(); 1231 1232 pw.decreaseIndent(); 1233 } 1234 } 1235 } 1236 } 1237 1238 private static final class TvInputState { 1239 // A TvInputInfo object which represents the TV input. 1240 private TvInputInfo mInfo; 1241 1242 // The state of TV input. Connected by default. 1243 private int mState = INPUT_STATE_CONNECTED; 1244 1245 @Override 1246 public String toString() { 1247 return "mInfo: " + mInfo + "; mState: " + mState; 1248 } 1249 } 1250 1251 private static final class UserState { 1252 // A mapping from the TV input id to its TvInputState. 1253 private Map<String, TvInputState> inputMap = new HashMap<String, TvInputState>(); 1254 1255 // A set of all TV input packages. 1256 private final Set<String> packageSet = new HashSet<String>(); 1257 1258 // A mapping from the token of a client to its state. 1259 private final Map<IBinder, ClientState> clientStateMap = 1260 new HashMap<IBinder, ClientState>(); 1261 1262 // A mapping from the name of a TV input service to its state. 1263 private final Map<String, ServiceState> serviceStateMap = 1264 new HashMap<String, ServiceState>(); 1265 1266 // A mapping from the token of a TV input session to its state. 1267 private final Map<IBinder, SessionState> sessionStateMap = 1268 new HashMap<IBinder, SessionState>(); 1269 1270 // A set of callbacks. 1271 private final Set<ITvInputManagerCallback> callbackSet = 1272 new HashSet<ITvInputManagerCallback>(); 1273 } 1274 1275 private final class ClientState implements IBinder.DeathRecipient { 1276 private final List<String> mInputIds = new ArrayList<String>(); 1277 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1278 1279 private IBinder mClientToken; 1280 private final int mUserId; 1281 1282 ClientState(IBinder clientToken, int userId) { 1283 mClientToken = clientToken; 1284 mUserId = userId; 1285 } 1286 1287 public boolean isEmpty() { 1288 return mInputIds.isEmpty() && mSessionTokens.isEmpty(); 1289 } 1290 1291 @Override 1292 public void binderDied() { 1293 synchronized (mLock) { 1294 UserState userState = getUserStateLocked(mUserId); 1295 // DO NOT remove the client state of clientStateMap in this method. It will be 1296 // removed in releaseSessionLocked() or unregisterClientInternalLocked(). 1297 ClientState clientState = userState.clientStateMap.get(mClientToken); 1298 if (clientState != null) { 1299 while (clientState.mSessionTokens.size() > 0) { 1300 releaseSessionLocked( 1301 clientState.mSessionTokens.get(0), Process.SYSTEM_UID, mUserId); 1302 } 1303 while (clientState.mInputIds.size() > 0) { 1304 unregisterClientInternalLocked( 1305 mClientToken, clientState.mInputIds.get(0), mUserId); 1306 } 1307 } 1308 mClientToken = null; 1309 } 1310 } 1311 } 1312 1313 private final class ServiceState { 1314 private final List<IBinder> mClientTokens = new ArrayList<IBinder>(); 1315 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1316 private final ServiceConnection mConnection; 1317 private final TvInputInfo mTvInputInfo; 1318 1319 private ITvInputService mService; 1320 private ServiceCallback mCallback; 1321 private boolean mBound; 1322 private boolean mReconnecting; 1323 1324 private ServiceState(TvInputInfo inputInfo, int userId) { 1325 mTvInputInfo = inputInfo; 1326 mConnection = new InputServiceConnection(inputInfo, userId); 1327 } 1328 } 1329 1330 private final class SessionState implements IBinder.DeathRecipient { 1331 private final String mInputId; 1332 private final ITvInputClient mClient; 1333 private final int mSeq; 1334 private final int mCallingUid; 1335 private final int mUserId; 1336 private final IBinder mSessionToken; 1337 private ITvInputSession mSession; 1338 private Uri mLogUri; 1339 1340 private SessionState(IBinder sessionToken, String inputId, ITvInputClient client, int seq, 1341 int callingUid, int userId) { 1342 mSessionToken = sessionToken; 1343 mInputId = inputId; 1344 mClient = client; 1345 mSeq = seq; 1346 mCallingUid = callingUid; 1347 mUserId = userId; 1348 } 1349 1350 @Override 1351 public void binderDied() { 1352 synchronized (mLock) { 1353 mSession = null; 1354 if (mClient != null) { 1355 try { 1356 mClient.onSessionReleased(mSeq); 1357 } catch(RemoteException e) { 1358 Slog.e(TAG, "error in onSessionReleased", e); 1359 } 1360 } 1361 removeSessionStateLocked(mSessionToken, mUserId); 1362 } 1363 } 1364 } 1365 1366 private final class InputServiceConnection implements ServiceConnection { 1367 private final TvInputInfo mTvInputInfo; 1368 private final int mUserId; 1369 1370 private InputServiceConnection(TvInputInfo inputInfo, int userId) { 1371 mUserId = userId; 1372 mTvInputInfo = inputInfo; 1373 } 1374 1375 @Override 1376 public void onServiceConnected(ComponentName name, IBinder service) { 1377 String inputId = mTvInputInfo.getId(); 1378 if (DEBUG) { 1379 Slog.d(TAG, "onServiceConnected(inputId=" + inputId + ")"); 1380 } 1381 synchronized (mLock) { 1382 UserState userState = getUserStateLocked(mUserId); 1383 ServiceState serviceState = userState.serviceStateMap.get(inputId); 1384 serviceState.mService = ITvInputService.Stub.asInterface(service); 1385 1386 // Register a callback, if we need to. 1387 if (!serviceState.mClientTokens.isEmpty() && serviceState.mCallback == null) { 1388 serviceState.mCallback = new ServiceCallback(mTvInputInfo.getId(), mUserId); 1389 try { 1390 serviceState.mService.registerCallback(serviceState.mCallback); 1391 } catch (RemoteException e) { 1392 Slog.e(TAG, "error in registerCallback", e); 1393 } 1394 } 1395 1396 // And create sessions, if any. 1397 for (IBinder sessionToken : serviceState.mSessionTokens) { 1398 createSessionInternalLocked(serviceState.mService, sessionToken, mUserId); 1399 } 1400 1401 TvInputState inputState = userState.inputMap.get(inputId); 1402 if (inputState != null && inputState.mState != INPUT_STATE_DISCONNECTED) { 1403 notifyStateChangedLocked(userState, mTvInputInfo.getId(), 1404 inputState.mState, null); 1405 } 1406 } 1407 } 1408 1409 @Override 1410 public void onServiceDisconnected(ComponentName name) { 1411 if (DEBUG) { 1412 Slog.d(TAG, "onServiceDisconnected(inputId=" + mTvInputInfo.getId() + ")"); 1413 } 1414 if (!mTvInputInfo.getComponent().equals(name)) { 1415 throw new IllegalArgumentException("Mismatched ComponentName: " 1416 + mTvInputInfo.getComponent() + " (expected), " + name + " (actual)."); 1417 } 1418 synchronized (mLock) { 1419 UserState userState = getUserStateLocked(mUserId); 1420 ServiceState serviceState = userState.serviceStateMap.get(mTvInputInfo.getId()); 1421 if (serviceState != null) { 1422 serviceState.mReconnecting = true; 1423 serviceState.mBound = false; 1424 serviceState.mService = null; 1425 serviceState.mCallback = null; 1426 1427 // Send null tokens for not finishing create session events. 1428 for (IBinder sessionToken : serviceState.mSessionTokens) { 1429 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1430 if (sessionState.mSession == null) { 1431 removeSessionStateLocked(sessionToken, sessionState.mUserId); 1432 sendSessionTokenToClientLocked(sessionState.mClient, 1433 sessionState.mInputId, null, null, sessionState.mSeq); 1434 } 1435 } 1436 1437 notifyStateChangedLocked(userState, mTvInputInfo.getId(), 1438 INPUT_STATE_DISCONNECTED, null); 1439 updateServiceConnectionLocked(mTvInputInfo.getId(), mUserId); 1440 } 1441 } 1442 } 1443 } 1444 1445 private final class ServiceCallback extends ITvInputServiceCallback.Stub { 1446 private final String mInputId; 1447 private final int mUserId; 1448 1449 ServiceCallback(String inputId, int userId) { 1450 mInputId = inputId; 1451 mUserId = userId; 1452 } 1453 1454 @Override 1455 public void onInputStateChanged(int state) { 1456 if (DEBUG) { 1457 Slog.d(TAG, "onInputStateChanged(inputId=" + mInputId + ", state=" 1458 + state + ")"); 1459 } 1460 synchronized (mLock) { 1461 setStateLocked(mInputId, state, mUserId); 1462 } 1463 } 1464 } 1465 1466 private final class LogHandler extends Handler { 1467 private static final int MSG_OPEN_ENTRY = 1; 1468 private static final int MSG_UPDATE_ENTRY = 2; 1469 private static final int MSG_CLOSE_ENTRY = 3; 1470 1471 public LogHandler(Looper looper) { 1472 super(looper); 1473 } 1474 1475 @Override 1476 public void handleMessage(Message msg) { 1477 switch (msg.what) { 1478 case MSG_OPEN_ENTRY: { 1479 SomeArgs args = (SomeArgs) msg.obj; 1480 Uri uri = (Uri) args.arg1; 1481 long channelId = (long) args.arg2; 1482 long time = (long) args.arg3; 1483 onOpenEntry(uri, channelId, time); 1484 args.recycle(); 1485 return; 1486 } 1487 case MSG_UPDATE_ENTRY: { 1488 SomeArgs args = (SomeArgs) msg.obj; 1489 Uri uri = (Uri) args.arg1; 1490 long channelId = (long) args.arg2; 1491 long time = (long) args.arg3; 1492 onUpdateEntry(uri, channelId, time); 1493 args.recycle(); 1494 return; 1495 } 1496 case MSG_CLOSE_ENTRY: { 1497 SomeArgs args = (SomeArgs) msg.obj; 1498 Uri uri = (Uri) args.arg1; 1499 long time = (long) args.arg2; 1500 onCloseEntry(uri, time); 1501 args.recycle(); 1502 return; 1503 } 1504 default: { 1505 Slog.w(TAG, "Unhandled message code: " + msg.what); 1506 return; 1507 } 1508 } 1509 } 1510 1511 private void onOpenEntry(Uri uri, long channelId, long watchStarttime) { 1512 String[] projection = { 1513 TvContract.Programs.COLUMN_TITLE, 1514 TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS, 1515 TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS, 1516 TvContract.Programs.COLUMN_SHORT_DESCRIPTION 1517 }; 1518 String selection = TvContract.Programs.COLUMN_CHANNEL_ID + "=? AND " 1519 + TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + "<=? AND " 1520 + TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS + ">?"; 1521 String[] selectionArgs = { 1522 String.valueOf(channelId), 1523 String.valueOf(watchStarttime), 1524 String.valueOf(watchStarttime) 1525 }; 1526 String sortOrder = TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + " ASC"; 1527 Cursor cursor = null; 1528 try { 1529 cursor = mContentResolver.query(TvContract.Programs.CONTENT_URI, projection, 1530 selection, selectionArgs, sortOrder); 1531 if (cursor != null && cursor.moveToNext()) { 1532 ContentValues values = new ContentValues(); 1533 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, cursor.getString(0)); 1534 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1535 cursor.getLong(1)); 1536 long endTime = cursor.getLong(2); 1537 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1538 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, cursor.getString(3)); 1539 mContentResolver.update(uri, values, null, null); 1540 1541 // Schedule an update when the current program ends. 1542 SomeArgs args = SomeArgs.obtain(); 1543 args.arg1 = uri; 1544 args.arg2 = channelId; 1545 args.arg3 = endTime; 1546 Message msg = obtainMessage(LogHandler.MSG_UPDATE_ENTRY, args); 1547 sendMessageDelayed(msg, endTime - System.currentTimeMillis()); 1548 } 1549 } finally { 1550 if (cursor != null) { 1551 cursor.close(); 1552 } 1553 } 1554 } 1555 1556 private void onUpdateEntry(Uri uri, long channelId, long time) { 1557 String[] projection = { 1558 TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1559 TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 1560 TvContract.WatchedPrograms.COLUMN_TITLE, 1561 TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1562 TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, 1563 TvContract.WatchedPrograms.COLUMN_DESCRIPTION 1564 }; 1565 Cursor cursor = null; 1566 try { 1567 cursor = mContentResolver.query(uri, projection, null, null, null); 1568 if (cursor != null && cursor.moveToNext()) { 1569 long watchStartTime = cursor.getLong(0); 1570 long watchEndTime = cursor.getLong(1); 1571 String title = cursor.getString(2); 1572 long startTime = cursor.getLong(3); 1573 long endTime = cursor.getLong(4); 1574 String description = cursor.getString(5); 1575 1576 // Do nothing if the current log entry is already closed. 1577 if (watchEndTime > 0) { 1578 return; 1579 } 1580 1581 // The current program has just ended. Create a (complete) log entry off the 1582 // current entry. 1583 ContentValues values = new ContentValues(); 1584 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1585 watchStartTime); 1586 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, time); 1587 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 1588 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, title); 1589 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, startTime); 1590 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1591 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, description); 1592 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 1593 } 1594 } finally { 1595 if (cursor != null) { 1596 cursor.close(); 1597 } 1598 } 1599 // Re-open the current log entry with the next program information. 1600 onOpenEntry(uri, channelId, time); 1601 } 1602 1603 private void onCloseEntry(Uri uri, long watchEndTime) { 1604 ContentValues values = new ContentValues(); 1605 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, watchEndTime); 1606 mContentResolver.update(uri, values, null, null); 1607 } 1608 } 1609 1610 final class Client { 1611 public void setState(String inputId, int state) { 1612 synchronized (mLock) { 1613 setStateLocked(inputId, state, mCurrentUserId); 1614 } 1615 } 1616 } 1617} 1618