TvInputManagerService.java revision b93ccca6139a7ee2dba5c110e5f8213a2bd231e5
1/* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.tv; 18 19import android.app.ActivityManager; 20import android.content.BroadcastReceiver; 21import android.content.ComponentName; 22import android.content.ContentProviderOperation; 23import android.content.ContentProviderResult; 24import android.content.ContentResolver; 25import android.content.ContentUris; 26import android.content.ContentValues; 27import android.content.Context; 28import android.content.Intent; 29import android.content.IntentFilter; 30import android.content.OperationApplicationException; 31import android.content.ServiceConnection; 32import android.content.pm.PackageManager; 33import android.content.pm.ResolveInfo; 34import android.content.pm.ServiceInfo; 35import android.database.Cursor; 36import android.graphics.Rect; 37import android.media.tv.ITvInputClient; 38import android.media.tv.ITvInputHardware; 39import android.media.tv.ITvInputHardwareCallback; 40import android.media.tv.ITvInputManager; 41import android.media.tv.ITvInputService; 42import android.media.tv.ITvInputServiceCallback; 43import android.media.tv.ITvInputSession; 44import android.media.tv.ITvInputSessionCallback; 45import android.media.tv.TvContract; 46import android.media.tv.TvInputHardwareInfo; 47import android.media.tv.TvInputInfo; 48import android.media.tv.TvInputService; 49import android.net.Uri; 50import android.os.Binder; 51import android.os.Bundle; 52import android.os.Handler; 53import android.os.IBinder; 54import android.os.Looper; 55import android.os.Message; 56import android.os.Process; 57import android.os.RemoteException; 58import android.os.UserHandle; 59import android.util.Slog; 60import android.util.SparseArray; 61import android.view.InputChannel; 62import android.view.Surface; 63 64import com.android.internal.content.PackageMonitor; 65import com.android.internal.os.SomeArgs; 66import com.android.internal.util.IndentingPrintWriter; 67import com.android.server.IoThread; 68import com.android.server.SystemService; 69 70import org.xmlpull.v1.XmlPullParserException; 71 72import java.io.FileDescriptor; 73import java.io.IOException; 74import java.io.PrintWriter; 75import java.util.ArrayList; 76import java.util.HashMap; 77import java.util.HashSet; 78import java.util.List; 79import java.util.Map; 80import java.util.Set; 81 82/** This class provides a system service that manages television inputs. */ 83public final class TvInputManagerService extends SystemService { 84 // STOPSHIP: Turn debugging off. 85 private static final boolean DEBUG = true; 86 private static final String TAG = "TvInputManagerService"; 87 88 private final Context mContext; 89 private final TvInputHardwareManager mTvInputHardwareManager; 90 91 private final ContentResolver mContentResolver; 92 93 // A global lock. 94 private final Object mLock = new Object(); 95 96 // ID of the current user. 97 private int mCurrentUserId = UserHandle.USER_OWNER; 98 99 // A map from user id to UserState. 100 private final SparseArray<UserState> mUserStates = new SparseArray<UserState>(); 101 102 private final Handler mLogHandler; 103 104 public TvInputManagerService(Context context) { 105 super(context); 106 107 mContext = context; 108 mContentResolver = context.getContentResolver(); 109 mLogHandler = new LogHandler(IoThread.get().getLooper()); 110 111 mTvInputHardwareManager = new TvInputHardwareManager(context); 112 113 synchronized (mLock) { 114 mUserStates.put(mCurrentUserId, new UserState()); 115 } 116 } 117 118 @Override 119 public void onStart() { 120 publishBinderService(Context.TV_INPUT_SERVICE, new BinderService()); 121 } 122 123 @Override 124 public void onBootPhase(int phase) { 125 if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { 126 registerBroadcastReceivers(); 127 synchronized (mLock) { 128 buildTvInputListLocked(mCurrentUserId); 129 } 130 } 131 } 132 133 private void registerBroadcastReceivers() { 134 PackageMonitor monitor = new PackageMonitor() { 135 @Override 136 public void onSomePackagesChanged() { 137 synchronized (mLock) { 138 buildTvInputListLocked(mCurrentUserId); 139 } 140 } 141 142 @Override 143 public void onPackageRemoved(String packageName, int uid) { 144 synchronized (mLock) { 145 UserState userState = getUserStateLocked(mCurrentUserId); 146 if (!userState.packageList.contains(packageName)) { 147 // Not a TV input package. 148 return; 149 } 150 } 151 152 ArrayList<ContentProviderOperation> operations = 153 new ArrayList<ContentProviderOperation>(); 154 155 String selection = TvContract.BaseTvColumns.COLUMN_PACKAGE_NAME + "=?"; 156 String[] selectionArgs = { packageName }; 157 158 operations.add(ContentProviderOperation.newDelete(TvContract.Channels.CONTENT_URI) 159 .withSelection(selection, selectionArgs).build()); 160 operations.add(ContentProviderOperation.newDelete(TvContract.Programs.CONTENT_URI) 161 .withSelection(selection, selectionArgs).build()); 162 operations.add(ContentProviderOperation 163 .newDelete(TvContract.WatchedPrograms.CONTENT_URI) 164 .withSelection(selection, selectionArgs).build()); 165 166 ContentProviderResult[] results = null; 167 try { 168 results = mContentResolver.applyBatch(TvContract.AUTHORITY, operations); 169 } catch (RemoteException | OperationApplicationException e) { 170 Slog.e(TAG, "error in applyBatch" + e); 171 } 172 173 if (DEBUG) { 174 Slog.d(TAG, "onPackageRemoved(packageName=" + packageName + ", uid=" + uid 175 + ")"); 176 Slog.d(TAG, "results=" + results); 177 } 178 } 179 }; 180 monitor.register(mContext, null, UserHandle.ALL, true); 181 182 IntentFilter intentFilter = new IntentFilter(); 183 intentFilter.addAction(Intent.ACTION_USER_SWITCHED); 184 intentFilter.addAction(Intent.ACTION_USER_REMOVED); 185 mContext.registerReceiverAsUser(new BroadcastReceiver() { 186 @Override 187 public void onReceive(Context context, Intent intent) { 188 String action = intent.getAction(); 189 if (Intent.ACTION_USER_SWITCHED.equals(action)) { 190 switchUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 191 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 192 removeUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 193 } 194 } 195 }, UserHandle.ALL, intentFilter, null, null); 196 } 197 198 private void buildTvInputListLocked(int userId) { 199 UserState userState = getUserStateLocked(userId); 200 userState.inputMap.clear(); 201 userState.packageList.clear(); 202 203 if (DEBUG) Slog.d(TAG, "buildTvInputList"); 204 PackageManager pm = mContext.getPackageManager(); 205 List<ResolveInfo> services = pm.queryIntentServices( 206 new Intent(TvInputService.SERVICE_INTERFACE), 207 PackageManager.GET_SERVICES | PackageManager.GET_META_DATA); 208 for (ResolveInfo ri : services) { 209 ServiceInfo si = ri.serviceInfo; 210 if (!android.Manifest.permission.BIND_TV_INPUT.equals(si.permission)) { 211 Slog.w(TAG, "Skipping TV input " + si.name + ": it does not require the permission " 212 + android.Manifest.permission.BIND_TV_INPUT); 213 continue; 214 } 215 try { 216 TvInputInfo info = TvInputInfo.createTvInputInfo(mContext, ri); 217 if (DEBUG) Slog.d(TAG, "add " + info.getId()); 218 userState.inputMap.put(info.getId(), info); 219 userState.packageList.add(si.packageName); 220 221 // Reconnect the service if existing input is updated. 222 updateServiceConnectionLocked(info.getId(), userId); 223 } catch (IOException | XmlPullParserException e) { 224 Slog.e(TAG, "Can't load TV input " + si.name, e); 225 } 226 } 227 } 228 229 private void switchUser(int userId) { 230 synchronized (mLock) { 231 if (mCurrentUserId == userId) { 232 return; 233 } 234 // final int oldUserId = mCurrentUserId; 235 // TODO: Release services and sessions in the old user state, if needed. 236 mCurrentUserId = userId; 237 238 UserState userState = mUserStates.get(userId); 239 if (userState == null) { 240 userState = new UserState(); 241 } 242 mUserStates.put(userId, userState); 243 buildTvInputListLocked(userId); 244 } 245 } 246 247 private void removeUser(int userId) { 248 synchronized (mLock) { 249 UserState userState = mUserStates.get(userId); 250 if (userState == null) { 251 return; 252 } 253 // Release created sessions. 254 for (SessionState state : userState.sessionStateMap.values()) { 255 if (state.mSession != null) { 256 try { 257 state.mSession.release(); 258 } catch (RemoteException e) { 259 Slog.e(TAG, "error in release", e); 260 } 261 } 262 } 263 userState.sessionStateMap.clear(); 264 265 // Unregister all callbacks and unbind all services. 266 for (ServiceState serviceState : userState.serviceStateMap.values()) { 267 if (serviceState.mCallback != null) { 268 try { 269 serviceState.mService.unregisterCallback(serviceState.mCallback); 270 } catch (RemoteException e) { 271 Slog.e(TAG, "error in unregisterCallback", e); 272 } 273 } 274 serviceState.mClientTokens.clear(); 275 mContext.unbindService(serviceState.mConnection); 276 } 277 userState.serviceStateMap.clear(); 278 279 userState.clientStateMap.clear(); 280 281 mUserStates.remove(userId); 282 } 283 } 284 285 private UserState getUserStateLocked(int userId) { 286 UserState userState = mUserStates.get(userId); 287 if (userState == null) { 288 throw new IllegalStateException("User state not found for user ID " + userId); 289 } 290 return userState; 291 } 292 293 private ServiceState getServiceStateLocked(String inputId, int userId) { 294 UserState userState = getUserStateLocked(userId); 295 ServiceState serviceState = userState.serviceStateMap.get(inputId); 296 if (serviceState == null) { 297 throw new IllegalStateException("Service state not found for " + inputId + " (userId=" 298 + userId + ")"); 299 } 300 return serviceState; 301 } 302 303 private SessionState getSessionStateLocked(IBinder sessionToken, int callingUid, int userId) { 304 UserState userState = getUserStateLocked(userId); 305 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 306 if (sessionState == null) { 307 throw new IllegalArgumentException("Session state not found for token " + sessionToken); 308 } 309 // Only the application that requested this session or the system can access it. 310 if (callingUid != Process.SYSTEM_UID && callingUid != sessionState.mCallingUid) { 311 throw new SecurityException("Illegal access to the session with token " + sessionToken 312 + " from uid " + callingUid); 313 } 314 return sessionState; 315 } 316 317 private ITvInputSession getSessionLocked(IBinder sessionToken, int callingUid, int userId) { 318 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 319 ITvInputSession session = sessionState.mSession; 320 if (session == null) { 321 throw new IllegalStateException("Session not yet created for token " + sessionToken); 322 } 323 return session; 324 } 325 326 private int resolveCallingUserId(int callingPid, int callingUid, int requestedUserId, 327 String methodName) { 328 return ActivityManager.handleIncomingUser(callingPid, callingUid, requestedUserId, false, 329 false, methodName, null); 330 } 331 332 private void updateServiceConnectionLocked(String inputId, int userId) { 333 UserState userState = getUserStateLocked(userId); 334 ServiceState serviceState = userState.serviceStateMap.get(inputId); 335 if (serviceState == null) { 336 return; 337 } 338 if (serviceState.mReconnecting) { 339 if (!serviceState.mSessionTokens.isEmpty()) { 340 // wait until all the sessions are removed. 341 return; 342 } 343 serviceState.mReconnecting = false; 344 } 345 boolean isStateEmpty = serviceState.mClientTokens.isEmpty() 346 && serviceState.mSessionTokens.isEmpty(); 347 if (serviceState.mService == null && !isStateEmpty && userId == mCurrentUserId) { 348 // This means that the service is not yet connected but its state indicates that we 349 // have pending requests. Then, connect the service. 350 if (serviceState.mBound) { 351 // We have already bound to the service so we don't try to bind again until after we 352 // unbind later on. 353 return; 354 } 355 if (DEBUG) { 356 Slog.d(TAG, "bindServiceAsUser(inputId=" + inputId + ", userId=" + userId 357 + ")"); 358 } 359 360 Intent i = new Intent(TvInputService.SERVICE_INTERFACE).setComponent( 361 userState.inputMap.get(inputId).getComponent()); 362 // Binding service may fail if the service is updating. 363 // In that case, the connection will be revived in buildTvInputListLocked called by 364 // onSomePackagesChanged. 365 serviceState.mBound = mContext.bindServiceAsUser( 366 i, serviceState.mConnection, Context.BIND_AUTO_CREATE, new UserHandle(userId)); 367 } else if (serviceState.mService != null && isStateEmpty) { 368 // This means that the service is already connected but its state indicates that we have 369 // nothing to do with it. Then, disconnect the service. 370 if (DEBUG) { 371 Slog.d(TAG, "unbindService(inputId=" + inputId + ")"); 372 } 373 mContext.unbindService(serviceState.mConnection); 374 userState.serviceStateMap.remove(inputId); 375 } 376 } 377 378 private ClientState createClientStateLocked(IBinder clientToken, int userId) { 379 UserState userState = getUserStateLocked(userId); 380 ClientState clientState = new ClientState(clientToken, userId); 381 try { 382 clientToken.linkToDeath(clientState, 0); 383 } catch (RemoteException e) { 384 Slog.e(TAG, "Client is already died."); 385 } 386 userState.clientStateMap.put(clientToken, clientState); 387 return clientState; 388 } 389 390 private void createSessionInternalLocked(ITvInputService service, final IBinder sessionToken, 391 final int userId) { 392 final UserState userState = getUserStateLocked(userId); 393 final SessionState sessionState = userState.sessionStateMap.get(sessionToken); 394 if (DEBUG) { 395 Slog.d(TAG, "createSessionInternalLocked(inputId=" + sessionState.mInputId + ")"); 396 } 397 398 final InputChannel[] channels = InputChannel.openInputChannelPair(sessionToken.toString()); 399 400 // Set up a callback to send the session token. 401 ITvInputSessionCallback callback = new ITvInputSessionCallback.Stub() { 402 @Override 403 public void onSessionCreated(ITvInputSession session) { 404 if (DEBUG) { 405 Slog.d(TAG, "onSessionCreated(inputId=" + sessionState.mInputId + ")"); 406 } 407 synchronized (mLock) { 408 sessionState.mSession = session; 409 if (session == null) { 410 removeSessionStateLocked(sessionToken, userId); 411 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInputId, 412 null, null, sessionState.mSeq); 413 } else { 414 try { 415 session.asBinder().linkToDeath(sessionState, 0); 416 } catch (RemoteException e) { 417 Slog.e(TAG, "Session is already died."); 418 } 419 420 IBinder clientToken = sessionState.mClient.asBinder(); 421 ClientState clientState = userState.clientStateMap.get(clientToken); 422 if (clientState == null) { 423 clientState = createClientStateLocked(clientToken, userId); 424 } 425 clientState.mSessionTokens.add(sessionState.mSessionToken); 426 427 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInputId, 428 sessionToken, channels[0], sessionState.mSeq); 429 } 430 channels[0].dispose(); 431 } 432 } 433 434 @Override 435 public void onVideoStreamChanged(int width, int height, boolean interlaced) { 436 synchronized (mLock) { 437 if (DEBUG) { 438 Slog.d(TAG, "onVideoStreamChanged(" + width + ", " + height + ")"); 439 } 440 if (sessionState.mSession == null || sessionState.mClient == null) { 441 return; 442 } 443 try { 444 sessionState.mClient.onVideoStreamChanged(width, height, interlaced, 445 sessionState.mSeq); 446 } catch (RemoteException e) { 447 Slog.e(TAG, "error in onVideoStreamChanged"); 448 } 449 } 450 } 451 452 @Override 453 public void onAudioStreamChanged(int channelCount) { 454 synchronized (mLock) { 455 if (DEBUG) { 456 Slog.d(TAG, "onAudioStreamChanged(" + channelCount + ")"); 457 } 458 if (sessionState.mSession == null || sessionState.mClient == null) { 459 return; 460 } 461 try { 462 sessionState.mClient.onAudioStreamChanged(channelCount, sessionState.mSeq); 463 } catch (RemoteException e) { 464 Slog.e(TAG, "error in onAudioStreamChanged"); 465 } 466 } 467 } 468 469 @Override 470 public void onClosedCaptionStreamChanged(boolean hasClosedCaption) { 471 synchronized (mLock) { 472 if (DEBUG) { 473 Slog.d(TAG, "onClosedCaptionStreamChanged(" + hasClosedCaption + ")"); 474 } 475 if (sessionState.mSession == null || sessionState.mClient == null) { 476 return; 477 } 478 try { 479 sessionState.mClient.onClosedCaptionStreamChanged(hasClosedCaption, 480 sessionState.mSeq); 481 } catch (RemoteException e) { 482 Slog.e(TAG, "error in onClosedCaptionStreamChanged"); 483 } 484 } 485 } 486 487 @Override 488 public void onChannelRetuned(Uri channelUri) { 489 synchronized (mLock) { 490 if (DEBUG) { 491 Slog.d(TAG, "onChannelRetuned(" + channelUri + ")"); 492 } 493 if (sessionState.mSession == null || sessionState.mClient == null) { 494 return; 495 } 496 try { 497 // TODO: Consider adding this channel change in the watch log. When we do 498 // that, how we can protect the watch log from malicious tv inputs should 499 // be addressed. e.g. add a field which represents where the channel change 500 // originated from. 501 sessionState.mClient.onChannelRetuned(channelUri, sessionState.mSeq); 502 } catch (RemoteException e) { 503 Slog.e(TAG, "error in onChannelRetuned"); 504 } 505 } 506 } 507 508 @Override 509 public void onSessionEvent(String eventType, Bundle eventArgs) { 510 synchronized (mLock) { 511 if (DEBUG) { 512 Slog.d(TAG, "onEvent(what=" + eventType + ", data=" + eventArgs + ")"); 513 } 514 if (sessionState.mSession == null || sessionState.mClient == null) { 515 return; 516 } 517 try { 518 sessionState.mClient.onSessionEvent(eventType, eventArgs, 519 sessionState.mSeq); 520 } catch (RemoteException e) { 521 Slog.e(TAG, "error in onSessionEvent"); 522 } 523 } 524 } 525 }; 526 527 // Create a session. When failed, send a null token immediately. 528 try { 529 service.createSession(channels[1], callback); 530 } catch (RemoteException e) { 531 Slog.e(TAG, "error in createSession", e); 532 removeSessionStateLocked(sessionToken, userId); 533 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInputId, null, null, 534 sessionState.mSeq); 535 } 536 channels[1].dispose(); 537 } 538 539 private void sendSessionTokenToClientLocked(ITvInputClient client, String inputId, 540 IBinder sessionToken, InputChannel channel, int seq) { 541 try { 542 client.onSessionCreated(inputId, sessionToken, channel, seq); 543 } catch (RemoteException exception) { 544 Slog.e(TAG, "error in onSessionCreated", exception); 545 } 546 } 547 548 private void releaseSessionLocked(IBinder sessionToken, int callingUid, int userId) { 549 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 550 if (sessionState.mSession != null) { 551 try { 552 sessionState.mSession.release(); 553 } catch (RemoteException e) { 554 Slog.w(TAG, "session is already disapeared", e); 555 } 556 sessionState.mSession = null; 557 } 558 removeSessionStateLocked(sessionToken, userId); 559 } 560 561 private void removeSessionStateLocked(IBinder sessionToken, int userId) { 562 // Remove the session state from the global session state map of the current user. 563 UserState userState = getUserStateLocked(userId); 564 SessionState sessionState = userState.sessionStateMap.remove(sessionToken); 565 566 // Close the open log entry, if any. 567 if (sessionState.mLogUri != null) { 568 SomeArgs args = SomeArgs.obtain(); 569 args.arg1 = sessionState.mLogUri; 570 args.arg2 = System.currentTimeMillis(); 571 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args).sendToTarget(); 572 } 573 574 // Also remove the session token from the session token list of the current client and 575 // service. 576 ClientState clientState = userState.clientStateMap.get(sessionState.mClient.asBinder()); 577 if (clientState != null) { 578 clientState.mSessionTokens.remove(sessionToken); 579 if (clientState.isEmpty()) { 580 userState.clientStateMap.remove(sessionState.mClient.asBinder()); 581 } 582 } 583 584 ServiceState serviceState = userState.serviceStateMap.get(sessionState.mInputId); 585 if (serviceState != null) { 586 serviceState.mSessionTokens.remove(sessionToken); 587 } 588 updateServiceConnectionLocked(sessionState.mInputId, userId); 589 } 590 591 private void unregisterCallbackInternalLocked(IBinder clientToken, String inputId, 592 int userId) { 593 UserState userState = getUserStateLocked(userId); 594 ClientState clientState = userState.clientStateMap.get(clientToken); 595 if (clientState != null) { 596 clientState.mInputIds.remove(inputId); 597 if (clientState.isEmpty()) { 598 userState.clientStateMap.remove(clientToken); 599 } 600 } 601 602 ServiceState serviceState = userState.serviceStateMap.get(inputId); 603 if (serviceState == null) { 604 return; 605 } 606 607 // Remove this client from the client list and unregister the callback. 608 serviceState.mClientTokens.remove(clientToken); 609 if (!serviceState.mClientTokens.isEmpty()) { 610 // We have other clients who want to keep the callback. Do this later. 611 return; 612 } 613 if (serviceState.mService == null || serviceState.mCallback == null) { 614 return; 615 } 616 try { 617 serviceState.mService.unregisterCallback(serviceState.mCallback); 618 } catch (RemoteException e) { 619 Slog.e(TAG, "error in unregisterCallback", e); 620 } finally { 621 serviceState.mCallback = null; 622 updateServiceConnectionLocked(inputId, userId); 623 } 624 } 625 626 private void broadcastServiceAvailabilityChangedLocked(ServiceState serviceState) { 627 for (IBinder clientToken : serviceState.mClientTokens) { 628 try { 629 ITvInputClient.Stub.asInterface(clientToken).onAvailabilityChanged( 630 serviceState.mTvInputInfo.getId(), serviceState.mAvailable); 631 } catch (RemoteException e) { 632 Slog.e(TAG, "error in onAvailabilityChanged", e); 633 } 634 } 635 } 636 637 private final class BinderService extends ITvInputManager.Stub { 638 @Override 639 public List<TvInputInfo> getTvInputList(int userId) { 640 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 641 Binder.getCallingUid(), userId, "getTvInputList"); 642 final long identity = Binder.clearCallingIdentity(); 643 try { 644 synchronized (mLock) { 645 UserState userState = getUserStateLocked(resolvedUserId); 646 return new ArrayList<TvInputInfo>(userState.inputMap.values()); 647 } 648 } finally { 649 Binder.restoreCallingIdentity(identity); 650 } 651 } 652 653 @Override 654 public boolean getAvailability(final ITvInputClient client, final String inputId, 655 int userId) { 656 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 657 Binder.getCallingUid(), userId, "getAvailability"); 658 final long identity = Binder.clearCallingIdentity(); 659 try { 660 synchronized (mLock) { 661 UserState userState = getUserStateLocked(resolvedUserId); 662 ServiceState serviceState = userState.serviceStateMap.get(inputId); 663 if (serviceState != null) { 664 // We already know the status of this input service. Return the cached 665 // status. 666 return serviceState.mAvailable; 667 } 668 } 669 } finally { 670 Binder.restoreCallingIdentity(identity); 671 } 672 // STOPSHIP: Redesign the API around the availability change. For now, the service 673 // will be always available. 674 return true; 675 } 676 677 @Override 678 public void registerCallback(final ITvInputClient client, final String inputId, 679 int userId) { 680 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 681 Binder.getCallingUid(), userId, "registerCallback"); 682 final long identity = Binder.clearCallingIdentity(); 683 try { 684 synchronized (mLock) { 685 // Create a new service callback and add it to the callback map of the current 686 // service. 687 UserState userState = getUserStateLocked(resolvedUserId); 688 ServiceState serviceState = userState.serviceStateMap.get(inputId); 689 if (serviceState == null) { 690 serviceState = new ServiceState( 691 userState.inputMap.get(inputId), resolvedUserId); 692 userState.serviceStateMap.put(inputId, serviceState); 693 } 694 IBinder clientToken = client.asBinder(); 695 if (!serviceState.mClientTokens.contains(clientToken)) { 696 serviceState.mClientTokens.add(clientToken); 697 } 698 699 ClientState clientState = userState.clientStateMap.get(clientToken); 700 if (clientState == null) { 701 clientState = createClientStateLocked(clientToken, resolvedUserId); 702 } 703 if (!clientState.mInputIds.contains(inputId)) { 704 clientState.mInputIds.add(inputId); 705 } 706 707 if (serviceState.mService != null) { 708 if (serviceState.mCallback != null) { 709 // We already handled. 710 return; 711 } 712 serviceState.mCallback = new ServiceCallback(resolvedUserId); 713 try { 714 serviceState.mService.registerCallback(serviceState.mCallback); 715 } catch (RemoteException e) { 716 Slog.e(TAG, "error in registerCallback", e); 717 } 718 } else { 719 updateServiceConnectionLocked(inputId, resolvedUserId); 720 } 721 } 722 } finally { 723 Binder.restoreCallingIdentity(identity); 724 } 725 } 726 727 @Override 728 public void unregisterCallback(ITvInputClient client, String inputId, int userId) { 729 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 730 Binder.getCallingUid(), userId, "unregisterCallback"); 731 final long identity = Binder.clearCallingIdentity(); 732 try { 733 synchronized (mLock) { 734 unregisterCallbackInternalLocked(client.asBinder(), inputId, resolvedUserId); 735 } 736 } finally { 737 Binder.restoreCallingIdentity(identity); 738 } 739 } 740 741 @Override 742 public void createSession(final ITvInputClient client, final String inputId, 743 int seq, int userId) { 744 final int callingUid = Binder.getCallingUid(); 745 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 746 userId, "createSession"); 747 final long identity = Binder.clearCallingIdentity(); 748 try { 749 synchronized (mLock) { 750 UserState userState = getUserStateLocked(resolvedUserId); 751 ServiceState serviceState = userState.serviceStateMap.get(inputId); 752 if (serviceState == null) { 753 serviceState = new ServiceState( 754 userState.inputMap.get(inputId), resolvedUserId); 755 userState.serviceStateMap.put(inputId, serviceState); 756 } 757 // Send a null token immediately while reconnecting. 758 if (serviceState.mReconnecting == true) { 759 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 760 return; 761 } 762 763 // Create a new session token and a session state. 764 IBinder sessionToken = new Binder(); 765 SessionState sessionState = new SessionState(sessionToken, inputId, client, 766 seq, callingUid, resolvedUserId); 767 768 // Add them to the global session state map of the current user. 769 userState.sessionStateMap.put(sessionToken, sessionState); 770 771 // Also, add them to the session state map of the current service. 772 serviceState.mSessionTokens.add(sessionToken); 773 774 if (serviceState.mService != null) { 775 createSessionInternalLocked(serviceState.mService, sessionToken, 776 resolvedUserId); 777 } else { 778 updateServiceConnectionLocked(inputId, resolvedUserId); 779 } 780 } 781 } finally { 782 Binder.restoreCallingIdentity(identity); 783 } 784 } 785 786 @Override 787 public void releaseSession(IBinder sessionToken, int userId) { 788 final int callingUid = Binder.getCallingUid(); 789 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 790 userId, "releaseSession"); 791 final long identity = Binder.clearCallingIdentity(); 792 try { 793 synchronized (mLock) { 794 releaseSessionLocked(sessionToken, callingUid, resolvedUserId); 795 } 796 } finally { 797 Binder.restoreCallingIdentity(identity); 798 } 799 } 800 801 @Override 802 public void setSurface(IBinder sessionToken, Surface surface, int userId) { 803 final int callingUid = Binder.getCallingUid(); 804 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 805 userId, "setSurface"); 806 final long identity = Binder.clearCallingIdentity(); 807 try { 808 synchronized (mLock) { 809 try { 810 getSessionLocked(sessionToken, callingUid, resolvedUserId).setSurface( 811 surface); 812 } catch (RemoteException e) { 813 Slog.e(TAG, "error in setSurface", e); 814 } 815 } 816 } finally { 817 if (surface != null) { 818 // surface is not used in TvInputManagerService. 819 surface.release(); 820 } 821 Binder.restoreCallingIdentity(identity); 822 } 823 } 824 825 @Override 826 public void setVolume(IBinder sessionToken, float volume, int userId) { 827 final int callingUid = Binder.getCallingUid(); 828 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 829 userId, "setVolume"); 830 final long identity = Binder.clearCallingIdentity(); 831 try { 832 synchronized (mLock) { 833 try { 834 getSessionLocked(sessionToken, callingUid, resolvedUserId).setVolume( 835 volume); 836 } catch (RemoteException e) { 837 Slog.e(TAG, "error in setVolume", e); 838 } 839 } 840 } finally { 841 Binder.restoreCallingIdentity(identity); 842 } 843 } 844 845 @Override 846 public void tune(IBinder sessionToken, final Uri channelUri, int userId) { 847 final int callingUid = Binder.getCallingUid(); 848 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 849 userId, "tune"); 850 final long identity = Binder.clearCallingIdentity(); 851 try { 852 synchronized (mLock) { 853 try { 854 getSessionLocked(sessionToken, callingUid, resolvedUserId).tune(channelUri); 855 856 long currentTime = System.currentTimeMillis(); 857 long channelId = ContentUris.parseId(channelUri); 858 859 // Close the open log entry first, if any. 860 UserState userState = getUserStateLocked(resolvedUserId); 861 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 862 if (sessionState.mLogUri != null) { 863 SomeArgs args = SomeArgs.obtain(); 864 args.arg1 = sessionState.mLogUri; 865 args.arg2 = currentTime; 866 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args) 867 .sendToTarget(); 868 } 869 870 // Create a log entry and fill it later. 871 String packageName = userState.inputMap.get(sessionState.mInputId) 872 .getServiceInfo().packageName; 873 ContentValues values = new ContentValues(); 874 values.put(TvContract.WatchedPrograms.COLUMN_PACKAGE_NAME, packageName); 875 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 876 currentTime); 877 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 0); 878 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 879 880 sessionState.mLogUri = mContentResolver.insert( 881 TvContract.WatchedPrograms.CONTENT_URI, values); 882 SomeArgs args = SomeArgs.obtain(); 883 args.arg1 = sessionState.mLogUri; 884 args.arg2 = ContentUris.parseId(channelUri); 885 args.arg3 = currentTime; 886 mLogHandler.obtainMessage(LogHandler.MSG_OPEN_ENTRY, args).sendToTarget(); 887 } catch (RemoteException e) { 888 Slog.e(TAG, "error in tune", e); 889 return; 890 } 891 } 892 } finally { 893 Binder.restoreCallingIdentity(identity); 894 } 895 } 896 897 @Override 898 public void createOverlayView(IBinder sessionToken, IBinder windowToken, Rect frame, 899 int userId) { 900 final int callingUid = Binder.getCallingUid(); 901 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 902 userId, "createOverlayView"); 903 final long identity = Binder.clearCallingIdentity(); 904 try { 905 synchronized (mLock) { 906 try { 907 getSessionLocked(sessionToken, callingUid, resolvedUserId) 908 .createOverlayView(windowToken, frame); 909 } catch (RemoteException e) { 910 Slog.e(TAG, "error in createOverlayView", e); 911 } 912 } 913 } finally { 914 Binder.restoreCallingIdentity(identity); 915 } 916 } 917 918 @Override 919 public void relayoutOverlayView(IBinder sessionToken, Rect frame, int userId) { 920 final int callingUid = Binder.getCallingUid(); 921 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 922 userId, "relayoutOverlayView"); 923 final long identity = Binder.clearCallingIdentity(); 924 try { 925 synchronized (mLock) { 926 try { 927 getSessionLocked(sessionToken, callingUid, resolvedUserId) 928 .relayoutOverlayView(frame); 929 } catch (RemoteException e) { 930 Slog.e(TAG, "error in relayoutOverlayView", e); 931 } 932 } 933 } finally { 934 Binder.restoreCallingIdentity(identity); 935 } 936 } 937 938 @Override 939 public void removeOverlayView(IBinder sessionToken, int userId) { 940 final int callingUid = Binder.getCallingUid(); 941 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 942 userId, "removeOverlayView"); 943 final long identity = Binder.clearCallingIdentity(); 944 try { 945 synchronized (mLock) { 946 try { 947 getSessionLocked(sessionToken, callingUid, resolvedUserId) 948 .removeOverlayView(); 949 } catch (RemoteException e) { 950 Slog.e(TAG, "error in removeOverlayView", e); 951 } 952 } 953 } finally { 954 Binder.restoreCallingIdentity(identity); 955 } 956 } 957 958 @Override 959 public List<TvInputHardwareInfo> getHardwareList() throws RemoteException { 960 if (mContext.checkCallingPermission( 961 android.Manifest.permission.TV_INPUT_HARDWARE) 962 != PackageManager.PERMISSION_GRANTED) { 963 return null; 964 } 965 966 final long identity = Binder.clearCallingIdentity(); 967 try { 968 return mTvInputHardwareManager.getHardwareList(); 969 } finally { 970 Binder.restoreCallingIdentity(identity); 971 } 972 } 973 974 @Override 975 public ITvInputHardware acquireTvInputHardware(int deviceId, 976 ITvInputHardwareCallback callback, int userId) throws RemoteException { 977 if (mContext.checkCallingPermission( 978 android.Manifest.permission.TV_INPUT_HARDWARE) 979 != PackageManager.PERMISSION_GRANTED) { 980 return null; 981 } 982 983 final long identity = Binder.clearCallingIdentity(); 984 final int callingUid = Binder.getCallingUid(); 985 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 986 userId, "acquireTvInputHardware"); 987 try { 988 return mTvInputHardwareManager.acquireHardware( 989 deviceId, callback, callingUid, resolvedUserId); 990 } finally { 991 Binder.restoreCallingIdentity(identity); 992 } 993 } 994 995 @Override 996 public void releaseTvInputHardware(int deviceId, ITvInputHardware hardware, int userId) 997 throws RemoteException { 998 if (mContext.checkCallingPermission( 999 android.Manifest.permission.TV_INPUT_HARDWARE) 1000 != PackageManager.PERMISSION_GRANTED) { 1001 return; 1002 } 1003 1004 final long identity = Binder.clearCallingIdentity(); 1005 final int callingUid = Binder.getCallingUid(); 1006 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1007 userId, "releaseTvInputHardware"); 1008 try { 1009 mTvInputHardwareManager.releaseHardware( 1010 deviceId, hardware, callingUid, resolvedUserId); 1011 } finally { 1012 Binder.restoreCallingIdentity(identity); 1013 } 1014 } 1015 1016 @Override 1017 protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) { 1018 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1019 if (mContext.checkCallingOrSelfPermission( 1020 android.Manifest.permission.DUMP) 1021 != PackageManager.PERMISSION_GRANTED) { 1022 pw.println("Permission Denial: can't dump TvInputManager " + 1023 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1024 Binder.getCallingUid()); 1025 return; 1026 } 1027 1028 synchronized (mLock) { 1029 pw.println("User Ids (Current user: " + mCurrentUserId + "):"); 1030 pw.increaseIndent(); 1031 for (int i = 0; i < mUserStates.size(); i++) { 1032 int userId = mUserStates.keyAt(i); 1033 pw.println(Integer.valueOf(userId)); 1034 } 1035 pw.decreaseIndent(); 1036 1037 for (int i = 0; i < mUserStates.size(); i++) { 1038 int userId = mUserStates.keyAt(i); 1039 UserState userState = getUserStateLocked(userId); 1040 1041 pw.println("UserState (" + userId + "):"); 1042 pw.increaseIndent(); 1043 1044 pw.println("inputMap: inputId -> TvInputInfo"); 1045 pw.increaseIndent(); 1046 for (TvInputInfo info : userState.inputMap.values()) { 1047 pw.println(info.toString()); 1048 } 1049 pw.decreaseIndent(); 1050 1051 pw.println("packageList:"); 1052 pw.increaseIndent(); 1053 for (String packageName : userState.packageList) { 1054 pw.println(packageName); 1055 } 1056 pw.decreaseIndent(); 1057 1058 pw.println("clientStateMap: ITvInputClient -> ClientState"); 1059 pw.increaseIndent(); 1060 for (Map.Entry<IBinder, ClientState> entry : 1061 userState.clientStateMap.entrySet()) { 1062 ClientState client = entry.getValue(); 1063 pw.println(entry.getKey() + ": " + client); 1064 1065 pw.increaseIndent(); 1066 1067 pw.println("mInputIds:"); 1068 pw.increaseIndent(); 1069 for (String inputId : client.mInputIds) { 1070 pw.println(inputId); 1071 } 1072 pw.decreaseIndent(); 1073 1074 pw.println("mSessionTokens:"); 1075 pw.increaseIndent(); 1076 for (IBinder token : client.mSessionTokens) { 1077 pw.println("" + token); 1078 } 1079 pw.decreaseIndent(); 1080 1081 pw.println("mClientTokens: " + client.mClientToken); 1082 pw.println("mUserId: " + client.mUserId); 1083 1084 pw.decreaseIndent(); 1085 } 1086 pw.decreaseIndent(); 1087 1088 pw.println("serviceStateMap: inputId -> ServiceState"); 1089 pw.increaseIndent(); 1090 for (Map.Entry<String, ServiceState> entry : 1091 userState.serviceStateMap.entrySet()) { 1092 ServiceState service = entry.getValue(); 1093 pw.println(entry.getKey() + ": " + service); 1094 1095 pw.increaseIndent(); 1096 1097 pw.println("mClientTokens:"); 1098 pw.increaseIndent(); 1099 for (IBinder token : service.mClientTokens) { 1100 pw.println("" + token); 1101 } 1102 pw.decreaseIndent(); 1103 1104 pw.println("mSessionTokens:"); 1105 pw.increaseIndent(); 1106 for (IBinder token : service.mSessionTokens) { 1107 pw.println("" + token); 1108 } 1109 pw.decreaseIndent(); 1110 1111 pw.println("mService: " + service.mService); 1112 pw.println("mCallback: " + service.mCallback); 1113 pw.println("mBound: " + service.mBound); 1114 pw.println("mAvailable: " + service.mAvailable); 1115 pw.println("mReconnecting: " + service.mReconnecting); 1116 1117 pw.decreaseIndent(); 1118 } 1119 pw.decreaseIndent(); 1120 1121 pw.println("sessionStateMap: ITvInputSession -> SessionState"); 1122 pw.increaseIndent(); 1123 for (Map.Entry<IBinder, SessionState> entry : 1124 userState.sessionStateMap.entrySet()) { 1125 SessionState session = entry.getValue(); 1126 pw.println(entry.getKey() + ": " + session); 1127 1128 pw.increaseIndent(); 1129 pw.println("mInputId: " + session.mInputId); 1130 pw.println("mClient: " + session.mClient); 1131 pw.println("mSeq: " + session.mSeq); 1132 pw.println("mCallingUid: " + session.mCallingUid); 1133 pw.println("mUserId: " + session.mUserId); 1134 pw.println("mSessionToken: " + session.mSessionToken); 1135 pw.println("mSession: " + session.mSession); 1136 pw.println("mLogUri: " + session.mLogUri); 1137 pw.decreaseIndent(); 1138 } 1139 pw.decreaseIndent(); 1140 1141 pw.decreaseIndent(); 1142 } 1143 } 1144 } 1145 } 1146 1147 private static final class UserState { 1148 // A mapping from the TV input id to its TvInputInfo. 1149 private final Map<String, TvInputInfo> inputMap = new HashMap<String,TvInputInfo>(); 1150 1151 // A list of all TV input packages. 1152 private final Set<String> packageList = new HashSet<String>(); 1153 1154 // A mapping from the token of a client to its state. 1155 private final Map<IBinder, ClientState> clientStateMap = 1156 new HashMap<IBinder, ClientState>(); 1157 1158 // A mapping from the name of a TV input service to its state. 1159 private final Map<String, ServiceState> serviceStateMap = 1160 new HashMap<String, ServiceState>(); 1161 1162 // A mapping from the token of a TV input session to its state. 1163 private final Map<IBinder, SessionState> sessionStateMap = 1164 new HashMap<IBinder, SessionState>(); 1165 } 1166 1167 private final class ClientState implements IBinder.DeathRecipient { 1168 private final List<String> mInputIds = new ArrayList<String>(); 1169 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1170 1171 private IBinder mClientToken; 1172 private final int mUserId; 1173 1174 ClientState(IBinder clientToken, int userId) { 1175 mClientToken = clientToken; 1176 mUserId = userId; 1177 } 1178 1179 public boolean isEmpty() { 1180 return mInputIds.isEmpty() && mSessionTokens.isEmpty(); 1181 } 1182 1183 @Override 1184 public void binderDied() { 1185 synchronized (mLock) { 1186 UserState userState = getUserStateLocked(mUserId); 1187 // DO NOT remove the client state of clientStateMap in this method. It will be 1188 // removed in releaseSessionLocked() or unregisterCallbackInternalLocked(). 1189 ClientState clientState = userState.clientStateMap.get(mClientToken); 1190 if (clientState != null) { 1191 while (clientState.mSessionTokens.size() > 0) { 1192 releaseSessionLocked( 1193 clientState.mSessionTokens.get(0), Process.SYSTEM_UID, mUserId); 1194 } 1195 while (clientState.mInputIds.size() > 0) { 1196 unregisterCallbackInternalLocked( 1197 mClientToken, clientState.mInputIds.get(0), mUserId); 1198 } 1199 } 1200 mClientToken = null; 1201 } 1202 } 1203 } 1204 1205 private final class ServiceState { 1206 private final List<IBinder> mClientTokens = new ArrayList<IBinder>(); 1207 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1208 private final ServiceConnection mConnection; 1209 private final TvInputInfo mTvInputInfo; 1210 1211 private ITvInputService mService; 1212 private ServiceCallback mCallback; 1213 private boolean mBound; 1214 private boolean mAvailable; 1215 private boolean mReconnecting; 1216 1217 private ServiceState(TvInputInfo inputInfo, int userId) { 1218 mTvInputInfo = inputInfo; 1219 mConnection = new InputServiceConnection(inputInfo, userId); 1220 } 1221 } 1222 1223 private final class SessionState implements IBinder.DeathRecipient { 1224 private final String mInputId; 1225 private final ITvInputClient mClient; 1226 private final int mSeq; 1227 private final int mCallingUid; 1228 private final int mUserId; 1229 private final IBinder mSessionToken; 1230 private ITvInputSession mSession; 1231 private Uri mLogUri; 1232 1233 private SessionState(IBinder sessionToken, String inputId, ITvInputClient client, int seq, 1234 int callingUid, int userId) { 1235 mSessionToken = sessionToken; 1236 mInputId = inputId; 1237 mClient = client; 1238 mSeq = seq; 1239 mCallingUid = callingUid; 1240 mUserId = userId; 1241 } 1242 1243 @Override 1244 public void binderDied() { 1245 synchronized (mLock) { 1246 mSession = null; 1247 if (mClient != null) { 1248 try { 1249 mClient.onSessionReleased(mSeq); 1250 } catch(RemoteException e) { 1251 Slog.e(TAG, "error in onSessionReleased", e); 1252 } 1253 } 1254 removeSessionStateLocked(mSessionToken, mUserId); 1255 } 1256 } 1257 } 1258 1259 private final class InputServiceConnection implements ServiceConnection { 1260 private final TvInputInfo mTvInputInfo; 1261 private final int mUserId; 1262 1263 private InputServiceConnection(TvInputInfo inputInfo, int userId) { 1264 mUserId = userId; 1265 mTvInputInfo = inputInfo; 1266 } 1267 1268 @Override 1269 public void onServiceConnected(ComponentName name, IBinder service) { 1270 if (DEBUG) { 1271 Slog.d(TAG, "onServiceConnected(inputId=" + mTvInputInfo.getId() + ")"); 1272 } 1273 synchronized (mLock) { 1274 ServiceState serviceState = getServiceStateLocked(mTvInputInfo.getId(), mUserId); 1275 serviceState.mService = ITvInputService.Stub.asInterface(service); 1276 1277 // Register a callback, if we need to. 1278 if (!serviceState.mClientTokens.isEmpty() && serviceState.mCallback == null) { 1279 serviceState.mCallback = new ServiceCallback(mUserId); 1280 try { 1281 serviceState.mService.registerCallback(serviceState.mCallback); 1282 } catch (RemoteException e) { 1283 Slog.e(TAG, "error in registerCallback", e); 1284 } 1285 } 1286 1287 // And create sessions, if any. 1288 for (IBinder sessionToken : serviceState.mSessionTokens) { 1289 createSessionInternalLocked(serviceState.mService, sessionToken, mUserId); 1290 } 1291 } 1292 } 1293 1294 @Override 1295 public void onServiceDisconnected(ComponentName name) { 1296 if (DEBUG) { 1297 Slog.d(TAG, "onServiceDisconnected(inputId=" + mTvInputInfo.getId() + ")"); 1298 } 1299 if (!mTvInputInfo.getComponent().equals(name)) { 1300 throw new IllegalArgumentException("Mismatched ComponentName: " 1301 + mTvInputInfo.getComponent() + " (expected), " + name + " (actual)."); 1302 } 1303 synchronized (mLock) { 1304 UserState userState = getUserStateLocked(mUserId); 1305 ServiceState serviceState = userState.serviceStateMap.get(mTvInputInfo.getId()); 1306 if (serviceState != null) { 1307 serviceState.mReconnecting = true; 1308 serviceState.mBound = false; 1309 serviceState.mService = null; 1310 serviceState.mCallback = null; 1311 1312 // Send null tokens for not finishing create session events. 1313 for (IBinder sessionToken : serviceState.mSessionTokens) { 1314 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1315 if (sessionState.mSession == null) { 1316 removeSessionStateLocked(sessionToken, sessionState.mUserId); 1317 sendSessionTokenToClientLocked(sessionState.mClient, 1318 sessionState.mInputId, null, null, sessionState.mSeq); 1319 } 1320 } 1321 1322 if (serviceState.mAvailable) { 1323 serviceState.mAvailable = false; 1324 broadcastServiceAvailabilityChangedLocked(serviceState); 1325 } 1326 updateServiceConnectionLocked(mTvInputInfo.getId(), mUserId); 1327 } 1328 } 1329 } 1330 } 1331 1332 private final class ServiceCallback extends ITvInputServiceCallback.Stub { 1333 private final int mUserId; 1334 1335 ServiceCallback(int userId) { 1336 mUserId = userId; 1337 } 1338 1339 @Override 1340 public void onAvailabilityChanged(String inputId, boolean isAvailable) { 1341 if (DEBUG) { 1342 Slog.d(TAG, "onAvailabilityChanged(inputId=" + inputId + ", isAvailable=" 1343 + isAvailable + ")"); 1344 } 1345 synchronized (mLock) { 1346 ServiceState serviceState = getServiceStateLocked(inputId, mUserId); 1347 if (serviceState.mAvailable != isAvailable) { 1348 serviceState.mAvailable = isAvailable; 1349 broadcastServiceAvailabilityChangedLocked(serviceState); 1350 } 1351 } 1352 } 1353 } 1354 1355 private final class LogHandler extends Handler { 1356 private static final int MSG_OPEN_ENTRY = 1; 1357 private static final int MSG_UPDATE_ENTRY = 2; 1358 private static final int MSG_CLOSE_ENTRY = 3; 1359 1360 public LogHandler(Looper looper) { 1361 super(looper); 1362 } 1363 1364 @Override 1365 public void handleMessage(Message msg) { 1366 switch (msg.what) { 1367 case MSG_OPEN_ENTRY: { 1368 SomeArgs args = (SomeArgs) msg.obj; 1369 Uri uri = (Uri) args.arg1; 1370 long channelId = (long) args.arg2; 1371 long time = (long) args.arg3; 1372 onOpenEntry(uri, channelId, time); 1373 args.recycle(); 1374 return; 1375 } 1376 case MSG_UPDATE_ENTRY: { 1377 SomeArgs args = (SomeArgs) msg.obj; 1378 Uri uri = (Uri) args.arg1; 1379 long channelId = (long) args.arg2; 1380 long time = (long) args.arg3; 1381 onUpdateEntry(uri, channelId, time); 1382 args.recycle(); 1383 return; 1384 } 1385 case MSG_CLOSE_ENTRY: { 1386 SomeArgs args = (SomeArgs) msg.obj; 1387 Uri uri = (Uri) args.arg1; 1388 long time = (long) args.arg2; 1389 onCloseEntry(uri, time); 1390 args.recycle(); 1391 return; 1392 } 1393 default: { 1394 Slog.w(TAG, "Unhandled message code: " + msg.what); 1395 return; 1396 } 1397 } 1398 } 1399 1400 private void onOpenEntry(Uri uri, long channelId, long watchStarttime) { 1401 String[] projection = { 1402 TvContract.Programs.COLUMN_TITLE, 1403 TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS, 1404 TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS, 1405 TvContract.Programs.COLUMN_SHORT_DESCRIPTION 1406 }; 1407 String selection = TvContract.Programs.COLUMN_CHANNEL_ID + "=? AND " 1408 + TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + "<=? AND " 1409 + TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS + ">?"; 1410 String[] selectionArgs = { 1411 String.valueOf(channelId), 1412 String.valueOf(watchStarttime), 1413 String.valueOf(watchStarttime) 1414 }; 1415 String sortOrder = TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + " ASC"; 1416 Cursor cursor = null; 1417 try { 1418 cursor = mContentResolver.query(TvContract.Programs.CONTENT_URI, projection, 1419 selection, selectionArgs, sortOrder); 1420 if (cursor != null && cursor.moveToNext()) { 1421 ContentValues values = new ContentValues(); 1422 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, cursor.getString(0)); 1423 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1424 cursor.getLong(1)); 1425 long endTime = cursor.getLong(2); 1426 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1427 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, cursor.getString(3)); 1428 mContentResolver.update(uri, values, null, null); 1429 1430 // Schedule an update when the current program ends. 1431 SomeArgs args = SomeArgs.obtain(); 1432 args.arg1 = uri; 1433 args.arg2 = channelId; 1434 args.arg3 = endTime; 1435 Message msg = obtainMessage(LogHandler.MSG_UPDATE_ENTRY, args); 1436 sendMessageDelayed(msg, endTime - System.currentTimeMillis()); 1437 } 1438 } finally { 1439 if (cursor != null) { 1440 cursor.close(); 1441 } 1442 } 1443 } 1444 1445 private void onUpdateEntry(Uri uri, long channelId, long time) { 1446 String[] projection = { 1447 TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1448 TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 1449 TvContract.WatchedPrograms.COLUMN_TITLE, 1450 TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1451 TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, 1452 TvContract.WatchedPrograms.COLUMN_DESCRIPTION 1453 }; 1454 Cursor cursor = null; 1455 try { 1456 cursor = mContentResolver.query(uri, projection, null, null, null); 1457 if (cursor != null && cursor.moveToNext()) { 1458 long watchStartTime = cursor.getLong(0); 1459 long watchEndTime = cursor.getLong(1); 1460 String title = cursor.getString(2); 1461 long startTime = cursor.getLong(3); 1462 long endTime = cursor.getLong(4); 1463 String description = cursor.getString(5); 1464 1465 // Do nothing if the current log entry is already closed. 1466 if (watchEndTime > 0) { 1467 return; 1468 } 1469 1470 // The current program has just ended. Create a (complete) log entry off the 1471 // current entry. 1472 ContentValues values = new ContentValues(); 1473 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1474 watchStartTime); 1475 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, time); 1476 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 1477 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, title); 1478 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, startTime); 1479 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1480 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, description); 1481 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 1482 } 1483 } finally { 1484 if (cursor != null) { 1485 cursor.close(); 1486 } 1487 } 1488 // Re-open the current log entry with the next program information. 1489 onOpenEntry(uri, channelId, time); 1490 } 1491 1492 private void onCloseEntry(Uri uri, long watchEndTime) { 1493 ContentValues values = new ContentValues(); 1494 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, watchEndTime); 1495 mContentResolver.update(uri, values, null, null); 1496 } 1497 } 1498} 1499