Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 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 | |
| 17 | package com.android.car; |
| 18 | |
| 19 | import static android.car.settings.CarSettings.Secure.KEY_BLUETOOTH_PROFILES_INHIBITED; |
| 20 | |
| 21 | import android.bluetooth.BluetoothAdapter; |
| 22 | import android.bluetooth.BluetoothDevice; |
| 23 | import android.bluetooth.BluetoothProfile; |
| 24 | import android.car.ICarBluetoothUserService; |
| 25 | import android.content.Context; |
| 26 | import android.os.Binder; |
| 27 | import android.os.Handler; |
| 28 | import android.os.IBinder; |
| 29 | import android.os.Looper; |
| 30 | import android.os.RemoteException; |
| 31 | import android.provider.Settings; |
| 32 | import android.text.TextUtils; |
| 33 | import android.util.Log; |
| 34 | |
| 35 | import com.android.internal.annotations.GuardedBy; |
| 36 | |
| 37 | import java.io.PrintWriter; |
| 38 | import java.util.HashSet; |
| 39 | import java.util.Objects; |
| 40 | import java.util.Set; |
| 41 | import java.util.stream.Collectors; |
| 42 | |
| 43 | /** |
| 44 | * Manages the inhibiting of Bluetooth profile connections to and from specific devices. |
| 45 | */ |
| 46 | public class BluetoothProfileInhibitManager { |
| 47 | private static final String TAG = "BluetoothProfileInhibitManager"; |
| 48 | private static final boolean DBG = Log.isLoggable(TAG, Log.DEBUG); |
| 49 | private static final String SETTINGS_DELIMITER = ","; |
| 50 | private static final Binder RESTORED_PROFILE_INHIBIT_TOKEN = new Binder(); |
| 51 | private static final long RESTORE_BACKOFF_MILLIS = 1000L; |
| 52 | |
| 53 | private final Context mContext; |
| 54 | |
| 55 | // Per-User information |
| 56 | private final int mUserId; |
| 57 | private final ICarBluetoothUserService mBluetoothUserProxies; |
| 58 | |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 59 | private final Object mProfileInhibitsLock = new Object(); |
| 60 | |
| 61 | @GuardedBy("mProfileInhibitsLock") |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 62 | private final SetMultimap<BluetoothConnection, InhibitRecord> mProfileInhibits = |
| 63 | new SetMultimap<>(); |
| 64 | |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 65 | @GuardedBy("mProfileInhibitsLock") |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 66 | private final HashSet<InhibitRecord> mRestoredInhibits = new HashSet<>(); |
| 67 | |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 68 | @GuardedBy("mProfileInhibitsLock") |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 69 | private final HashSet<BluetoothConnection> mAlreadyDisabledProfiles = new HashSet<>(); |
| 70 | |
| 71 | private final Handler mHandler = new Handler(Looper.getMainLooper()); |
| 72 | |
| 73 | /** |
| 74 | * BluetoothConnection - encapsulates the information representing a connection to a device on a |
| 75 | * given profile. This object is hashable, encodable and decodable. |
| 76 | * |
| 77 | * Encodes to the following structure: |
| 78 | * <device>/<profile> |
| 79 | * |
| 80 | * Where, |
| 81 | * device - the device we're connecting to, can be null |
| 82 | * profile - the profile we're connecting on, can be null |
| 83 | */ |
| 84 | public static class BluetoothConnection { |
| 85 | // Examples: |
| 86 | // 01:23:45:67:89:AB/9 |
| 87 | // null/0 |
| 88 | // null/null |
| 89 | private static final String FLATTENED_PATTERN = |
| 90 | "^(([0-9A-F]{2}:){5}[0-9A-F]{2}|null)/([0-9]+|null)$"; |
| 91 | |
| 92 | private final BluetoothDevice mBluetoothDevice; |
| 93 | private final Integer mBluetoothProfile; |
| 94 | |
| 95 | public BluetoothConnection(Integer profile, BluetoothDevice device) { |
| 96 | mBluetoothProfile = profile; |
| 97 | mBluetoothDevice = device; |
| 98 | } |
| 99 | |
| 100 | public BluetoothDevice getDevice() { |
| 101 | return mBluetoothDevice; |
| 102 | } |
| 103 | |
| 104 | public Integer getProfile() { |
| 105 | return mBluetoothProfile; |
| 106 | } |
| 107 | |
| 108 | @Override |
| 109 | public boolean equals(Object other) { |
| 110 | if (this == other) { |
| 111 | return true; |
| 112 | } |
| 113 | if (!(other instanceof BluetoothConnection)) { |
| 114 | return false; |
| 115 | } |
| 116 | BluetoothConnection otherParams = (BluetoothConnection) other; |
| 117 | return Objects.equals(mBluetoothDevice, otherParams.mBluetoothDevice) |
| 118 | && Objects.equals(mBluetoothProfile, otherParams.mBluetoothProfile); |
| 119 | } |
| 120 | |
| 121 | @Override |
| 122 | public int hashCode() { |
| 123 | return Objects.hash(mBluetoothDevice, mBluetoothProfile); |
| 124 | } |
| 125 | |
| 126 | @Override |
| 127 | public String toString() { |
| 128 | return encode(); |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * Converts these {@link BluetoothConnection} to a parseable string representation. |
| 133 | * |
| 134 | * @return A parseable string representation of this BluetoothConnection object. |
| 135 | */ |
| 136 | public String encode() { |
| 137 | return mBluetoothDevice + "/" + mBluetoothProfile; |
| 138 | } |
| 139 | |
| 140 | /** |
| 141 | * Creates a {@link BluetoothConnection} from a previous output of {@link #encode()}. |
| 142 | * |
| 143 | * @param flattenedParams A flattened string representation of a {@link BluetoothConnection} |
| 144 | */ |
| 145 | public static BluetoothConnection decode(String flattenedParams) { |
| 146 | if (!flattenedParams.matches(FLATTENED_PATTERN)) { |
| 147 | throw new IllegalArgumentException("Bad format for flattened BluetoothConnection"); |
| 148 | } |
| 149 | |
| 150 | BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); |
| 151 | if (adapter == null) { |
| 152 | return new BluetoothConnection(null, null); |
| 153 | } |
| 154 | |
| 155 | String[] parts = flattenedParams.split("/"); |
| 156 | |
| 157 | BluetoothDevice device; |
| 158 | if (!"null".equals(parts[0])) { |
| 159 | device = adapter.getRemoteDevice(parts[0]); |
| 160 | } else { |
| 161 | device = null; |
| 162 | } |
| 163 | |
| 164 | Integer profile; |
| 165 | if (!"null".equals(parts[1])) { |
| 166 | profile = Integer.valueOf(parts[1]); |
| 167 | } else { |
| 168 | profile = null; |
| 169 | } |
| 170 | |
| 171 | return new BluetoothConnection(profile, device); |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | private class InhibitRecord implements IBinder.DeathRecipient { |
| 176 | private final BluetoothConnection mParams; |
| 177 | private final IBinder mToken; |
| 178 | |
| 179 | private boolean mRemoved = false; |
| 180 | |
| 181 | InhibitRecord(BluetoothConnection params, IBinder token) { |
| 182 | this.mParams = params; |
| 183 | this.mToken = token; |
| 184 | } |
| 185 | |
| 186 | public BluetoothConnection getParams() { |
| 187 | return mParams; |
| 188 | } |
| 189 | |
| 190 | public IBinder getToken() { |
| 191 | return mToken; |
| 192 | } |
| 193 | |
| 194 | public boolean removeSelf() { |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 195 | synchronized (mProfileInhibitsLock) { |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 196 | if (mRemoved) { |
| 197 | return true; |
| 198 | } |
| 199 | |
| 200 | if (removeInhibitRecord(this)) { |
| 201 | mRemoved = true; |
| 202 | return true; |
| 203 | } else { |
| 204 | return false; |
| 205 | } |
| 206 | } |
| 207 | } |
| 208 | |
| 209 | @Override |
| 210 | public void binderDied() { |
| 211 | logd("Releasing inhibit request on profile " |
| 212 | + Utils.getProfileName(mParams.getProfile()) |
| 213 | + " for device " + mParams.getDevice() |
| 214 | + ": requesting process died"); |
| 215 | removeSelf(); |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | /** |
| 220 | * Creates a new instance of a BluetoothProfileInhibitManager |
| 221 | * |
| 222 | * @param context - context of calling code |
| 223 | * @param userId - ID of user we want to manage inhibits for |
| 224 | * @param bluetoothUserProxies - Set of per-user bluetooth proxies for calling into the |
| 225 | * bluetooth stack as the current user. |
| 226 | * @return A new instance of a BluetoothProfileInhibitManager |
| 227 | */ |
| 228 | public BluetoothProfileInhibitManager(Context context, int userId, |
| 229 | ICarBluetoothUserService bluetoothUserProxies) { |
| 230 | mContext = context; |
| 231 | mUserId = userId; |
| 232 | mBluetoothUserProxies = bluetoothUserProxies; |
| 233 | } |
| 234 | |
| 235 | /** |
| 236 | * Create {@link InhibitRecord}s for all profile inhibits written to {@link Settings.Secure}. |
| 237 | */ |
| 238 | private void load() { |
| 239 | String savedBluetoothConnection = Settings.Secure.getStringForUser( |
| 240 | mContext.getContentResolver(), KEY_BLUETOOTH_PROFILES_INHIBITED, mUserId); |
| 241 | |
| 242 | if (TextUtils.isEmpty(savedBluetoothConnection)) { |
| 243 | return; |
| 244 | } |
| 245 | |
| 246 | logd("Restoring profile inhibits: " + savedBluetoothConnection); |
| 247 | |
| 248 | for (String paramsStr : savedBluetoothConnection.split(SETTINGS_DELIMITER)) { |
| 249 | try { |
| 250 | BluetoothConnection params = BluetoothConnection.decode(paramsStr); |
| 251 | InhibitRecord record = new InhibitRecord(params, RESTORED_PROFILE_INHIBIT_TOKEN); |
| 252 | mProfileInhibits.put(params, record); |
| 253 | mRestoredInhibits.add(record); |
| 254 | logd("Restored profile inhibits for " + params); |
| 255 | } catch (IllegalArgumentException e) { |
| 256 | // We won't ever be able to fix a bad parse, so skip it and move on. |
| 257 | loge("Bad format for saved profile inhibit: " + paramsStr + ", " + e); |
| 258 | } |
| 259 | } |
| 260 | } |
| 261 | |
| 262 | /** |
| 263 | * Dump all currently-active profile inhibits to {@link Settings.Secure}. |
| 264 | */ |
| 265 | private void commit() { |
| 266 | Set<BluetoothConnection> inhibitedProfiles = new HashSet<>(mProfileInhibits.keySet()); |
| 267 | // Don't write out profiles that were disabled before a request was made, since |
| 268 | // restoring those profiles is a no-op. |
| 269 | inhibitedProfiles.removeAll(mAlreadyDisabledProfiles); |
| 270 | String savedDisconnects = |
| 271 | inhibitedProfiles |
| 272 | .stream() |
| 273 | .map(BluetoothConnection::encode) |
| 274 | .collect(Collectors.joining(SETTINGS_DELIMITER)); |
| 275 | |
| 276 | Settings.Secure.putStringForUser( |
| 277 | mContext.getContentResolver(), KEY_BLUETOOTH_PROFILES_INHIBITED, |
| 278 | savedDisconnects, mUserId); |
| 279 | |
| 280 | logd("Committed key: " + KEY_BLUETOOTH_PROFILES_INHIBITED + ", value: '" |
| 281 | + savedDisconnects + "'"); |
| 282 | } |
| 283 | |
| 284 | /** |
| 285 | * |
| 286 | */ |
| 287 | public void start() { |
| 288 | load(); |
| 289 | removeRestoredProfileInhibits(); |
| 290 | } |
| 291 | |
| 292 | /** |
| 293 | * |
| 294 | */ |
| 295 | public void stop() { |
| 296 | releaseAllInhibitsBeforeUnbind(); |
| 297 | } |
| 298 | |
| 299 | /** |
| 300 | * Request to disconnect the given profile on the given device, and prevent it from reconnecting |
| 301 | * until either the request is released, or the process owning the given token dies. |
| 302 | * |
| 303 | * @param device The device on which to inhibit a profile. |
| 304 | * @param profile The {@link android.bluetooth.BluetoothProfile} to inhibit. |
| 305 | * @param token A {@link IBinder} to be used as an identity for the request. If the process |
| 306 | * owning the token dies, the request will automatically be released |
| 307 | * @return True if the profile was successfully inhibited, false if an error occurred. |
| 308 | */ |
| 309 | boolean requestProfileInhibit(BluetoothDevice device, int profile, IBinder token) { |
| 310 | logd("Request profile inhibit: profile " + Utils.getProfileName(profile) |
| 311 | + ", device " + device.getAddress()); |
| 312 | BluetoothConnection params = new BluetoothConnection(profile, device); |
| 313 | InhibitRecord record = new InhibitRecord(params, token); |
| 314 | return addInhibitRecord(record); |
| 315 | } |
| 316 | |
| 317 | /** |
| 318 | * Undo a previous call to {@link #requestProfileInhibit} with the same parameters, |
| 319 | * and reconnect the profile if no other requests are active. |
| 320 | * |
| 321 | * @param device The device on which to release the inhibit request. |
| 322 | * @param profile The profile on which to release the inhibit request. |
| 323 | * @param token The token provided in the original call to |
| 324 | * {@link #requestBluetoothProfileInhibit}. |
| 325 | * @return True if the request was released, false if an error occurred. |
| 326 | */ |
| 327 | boolean releaseProfileInhibit(BluetoothDevice device, int profile, IBinder token) { |
| 328 | logd("Release profile inhibit: profile " + Utils.getProfileName(profile) |
| 329 | + ", device " + device.getAddress()); |
| 330 | |
| 331 | BluetoothConnection params = new BluetoothConnection(profile, device); |
| 332 | InhibitRecord record; |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 333 | record = findInhibitRecord(params, token); |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 334 | |
| 335 | if (record == null) { |
| 336 | Log.e(TAG, "Record not found"); |
| 337 | return false; |
| 338 | } |
| 339 | |
| 340 | return record.removeSelf(); |
| 341 | } |
| 342 | |
| 343 | /** |
| 344 | * Add a profile inhibit record, disabling the profile if necessary. |
| 345 | */ |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 346 | private boolean addInhibitRecord(InhibitRecord record) { |
| 347 | synchronized (mProfileInhibitsLock) { |
| 348 | BluetoothConnection params = record.getParams(); |
| 349 | if (!isProxyAvailable(params.getProfile())) { |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 350 | return false; |
| 351 | } |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 352 | |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 353 | Set<InhibitRecord> previousRecords = mProfileInhibits.get(params); |
| 354 | if (findInhibitRecord(params, record.getToken()) != null) { |
| 355 | Log.e(TAG, "Inhibit request already registered - skipping duplicate"); |
| 356 | return false; |
| 357 | } |
| 358 | |
| 359 | try { |
| 360 | record.getToken().linkToDeath(record, 0); |
| 361 | } catch (RemoteException e) { |
| 362 | Log.e(TAG, "Could not link to death on inhibit token (already dead?)", e); |
| 363 | return false; |
| 364 | } |
| 365 | |
| 366 | boolean isNewlyAdded = previousRecords.isEmpty(); |
| 367 | mProfileInhibits.put(params, record); |
| 368 | |
| 369 | if (isNewlyAdded) { |
| 370 | try { |
| 371 | int priority = |
| 372 | mBluetoothUserProxies.getProfilePriority( |
| 373 | params.getProfile(), |
| 374 | params.getDevice()); |
| 375 | if (priority == BluetoothProfile.PRIORITY_OFF) { |
| 376 | // This profile was already disabled (and not as the result of an inhibit). |
| 377 | // Add it to the already-disabled list, and do nothing else. |
| 378 | mAlreadyDisabledProfiles.add(params); |
| 379 | |
| 380 | logd("Profile " + Utils.getProfileName(params.getProfile()) |
| 381 | + " already disabled for device " + params.getDevice() |
| 382 | + " - suppressing re-enable"); |
| 383 | } else { |
| 384 | mBluetoothUserProxies.setProfilePriority( |
| 385 | params.getProfile(), |
| 386 | params.getDevice(), |
| 387 | BluetoothProfile.PRIORITY_OFF); |
| 388 | mBluetoothUserProxies.bluetoothDisconnectFromProfile( |
| 389 | params.getProfile(), |
| 390 | params.getDevice()); |
| 391 | logd("Disabled profile " |
| 392 | + Utils.getProfileName(params.getProfile()) |
| 393 | + " for device " + params.getDevice()); |
| 394 | } |
| 395 | } catch (RemoteException e) { |
| 396 | Log.e(TAG, "Could not disable profile", e); |
| 397 | record.getToken().unlinkToDeath(record, 0); |
| 398 | mProfileInhibits.remove(params, record); |
| 399 | return false; |
| 400 | } |
| 401 | } |
| 402 | |
| 403 | commit(); |
| 404 | return true; |
| 405 | } |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 406 | } |
| 407 | |
| 408 | /** |
| 409 | * Find the inhibit record, if any, corresponding to the given parameters and token. |
| 410 | * |
| 411 | * @param params BluetoothConnection parameter pair that could have an inhibit on it |
| 412 | * @param token The token provided in the call to {@link #requestBluetoothProfileInhibit}. |
| 413 | * @return InhibitRecord for the connection parameters and token if exists, null otherwise. |
| 414 | */ |
| 415 | private InhibitRecord findInhibitRecord(BluetoothConnection params, IBinder token) { |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 416 | synchronized (mProfileInhibitsLock) { |
| 417 | return mProfileInhibits.get(params) |
| 418 | .stream() |
| 419 | .filter(r -> r.getToken() == token) |
| 420 | .findAny() |
| 421 | .orElse(null); |
| 422 | } |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 423 | } |
| 424 | |
| 425 | /** |
| 426 | * Remove a given profile inhibit record, reconnecting if necessary. |
| 427 | */ |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 428 | private boolean removeInhibitRecord(InhibitRecord record) { |
| 429 | synchronized (mProfileInhibitsLock) { |
| 430 | BluetoothConnection params = record.getParams(); |
| 431 | if (!isProxyAvailable(params.getProfile())) { |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 432 | return false; |
| 433 | } |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 434 | if (!mProfileInhibits.containsEntry(params, record)) { |
| 435 | Log.e(TAG, "Record already removed"); |
| 436 | // Removing something a second time vacuously succeeds. |
| 437 | return true; |
| 438 | } |
| 439 | |
| 440 | // Re-enable profile before unlinking and removing the record, in case of error. |
| 441 | // The profile should be re-enabled if this record is the only one left for that |
| 442 | // device and profile combination. |
| 443 | if (mProfileInhibits.get(params).size() == 1) { |
| 444 | if (!restoreProfilePriority(params)) { |
| 445 | return false; |
| 446 | } |
| 447 | } |
| 448 | |
| 449 | record.getToken().unlinkToDeath(record, 0); |
| 450 | mProfileInhibits.remove(params, record); |
| 451 | |
| 452 | commit(); |
| 453 | return true; |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 454 | } |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 455 | } |
| 456 | |
| 457 | /** |
| 458 | * Re-enable and reconnect a given profile for a device. |
| 459 | */ |
| 460 | private boolean restoreProfilePriority(BluetoothConnection params) { |
| 461 | if (!isProxyAvailable(params.getProfile())) { |
| 462 | return false; |
| 463 | } |
| 464 | |
| 465 | if (mAlreadyDisabledProfiles.remove(params)) { |
| 466 | // The profile does not need any state changes, since it was disabled |
| 467 | // before it was inhibited. Leave it disabled. |
| 468 | logd("Not restoring profile " |
| 469 | + Utils.getProfileName(params.getProfile()) + " for device " |
| 470 | + params.getDevice() + " - was manually disabled"); |
| 471 | return true; |
| 472 | } |
| 473 | |
| 474 | try { |
| 475 | mBluetoothUserProxies.setProfilePriority( |
| 476 | params.getProfile(), |
| 477 | params.getDevice(), |
| 478 | BluetoothProfile.PRIORITY_ON); |
| 479 | mBluetoothUserProxies.bluetoothConnectToProfile( |
| 480 | params.getProfile(), |
| 481 | params.getDevice()); |
| 482 | logd("Restored profile " + Utils.getProfileName(params.getProfile()) |
| 483 | + " for device " + params.getDevice()); |
| 484 | return true; |
| 485 | } catch (RemoteException e) { |
| 486 | loge("Could not enable profile: " + e); |
| 487 | return false; |
| 488 | } |
| 489 | } |
| 490 | |
| 491 | /** |
| 492 | * Try once to remove all restored profile inhibits. |
| 493 | * |
| 494 | * If the CarBluetoothUserService is not yet available, or it hasn't yet bound its profile |
| 495 | * proxies, the removal will fail, and will need to be retried later. |
| 496 | */ |
| 497 | private void tryRemoveRestoredProfileInhibits() { |
| 498 | HashSet<InhibitRecord> successfullyRemoved = new HashSet<>(); |
| 499 | |
| 500 | for (InhibitRecord record : mRestoredInhibits) { |
| 501 | if (removeInhibitRecord(record)) { |
| 502 | successfullyRemoved.add(record); |
| 503 | } |
| 504 | } |
| 505 | |
| 506 | mRestoredInhibits.removeAll(successfullyRemoved); |
| 507 | } |
| 508 | |
| 509 | /** |
| 510 | * Keep trying to remove all profile inhibits that were restored from settings |
| 511 | * until all such inhibits have been removed. |
| 512 | */ |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 513 | private void removeRestoredProfileInhibits() { |
| 514 | synchronized (mProfileInhibitsLock) { |
| 515 | tryRemoveRestoredProfileInhibits(); |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 516 | |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 517 | if (!mRestoredInhibits.isEmpty()) { |
| 518 | logd("Could not remove all restored profile inhibits - " |
| 519 | + "trying again in " + RESTORE_BACKOFF_MILLIS + "ms"); |
| 520 | mHandler.postDelayed( |
| 521 | this::removeRestoredProfileInhibits, |
| 522 | RESTORED_PROFILE_INHIBIT_TOKEN, |
| 523 | RESTORE_BACKOFF_MILLIS); |
| 524 | } |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 525 | } |
| 526 | } |
| 527 | |
| 528 | /** |
| 529 | * Release all active inhibit records prior to user switch or shutdown |
| 530 | */ |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 531 | private void releaseAllInhibitsBeforeUnbind() { |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 532 | logd("Unbinding CarBluetoothUserService - releasing all profile inhibits"); |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 533 | |
| 534 | synchronized (mProfileInhibitsLock) { |
| 535 | for (BluetoothConnection params : mProfileInhibits.keySet()) { |
| 536 | for (InhibitRecord record : mProfileInhibits.get(params)) { |
| 537 | record.removeSelf(); |
| 538 | } |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 539 | } |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 540 | |
| 541 | // Some inhibits might be hanging around because they couldn't be cleaned up. |
| 542 | // Make sure they get persisted... |
| 543 | commit(); |
| 544 | |
| 545 | // ...then clear them from the map. |
| 546 | mProfileInhibits.clear(); |
| 547 | |
| 548 | // We don't need to maintain previously-disabled profiles any more - they were already |
| 549 | // skipped in saveProfileInhibitsToSettings() above, and they don't need any |
| 550 | // further handling when the user resumes. |
| 551 | mAlreadyDisabledProfiles.clear(); |
| 552 | |
| 553 | // Clean up bookkeeping for restored inhibits. (If any are still around, they'll be |
| 554 | // restored again when this user restarts.) |
| 555 | mHandler.removeCallbacksAndMessages(RESTORED_PROFILE_INHIBIT_TOKEN); |
| 556 | mRestoredInhibits.clear(); |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 557 | } |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 558 | } |
| 559 | |
| 560 | /** |
| 561 | * Determines if the per-user bluetooth proxy for a given profile is active and usable. |
| 562 | * |
| 563 | * @return True if proxy is available, false otherwise |
| 564 | */ |
| 565 | private boolean isProxyAvailable(int profile) { |
| 566 | try { |
| 567 | return mBluetoothUserProxies.isBluetoothConnectionProxyAvailable(profile); |
| 568 | } catch (RemoteException e) { |
| 569 | loge("Car BT Service Remote Exception. Proxy for " + Utils.getProfileName(profile) |
| 570 | + " not available."); |
| 571 | } |
| 572 | return false; |
| 573 | } |
| 574 | |
| 575 | /** |
| 576 | * Print the verbose status of the object |
| 577 | */ |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 578 | public void dump(PrintWriter writer, String indent) { |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 579 | writer.println(indent + TAG + ":"); |
| 580 | |
| 581 | // User metadata |
| 582 | writer.println(indent + "\tUser: " + mUserId); |
| 583 | |
| 584 | // Current inhibits |
| 585 | String inhibits; |
Sal Savage | 13921c3 | 2019-11-14 15:30:18 -0800 | [diff] [blame] | 586 | synchronized (mProfileInhibitsLock) { |
Sal Savage | 703c46f | 2019-04-15 08:39:25 -0700 | [diff] [blame] | 587 | inhibits = mProfileInhibits.keySet().toString(); |
| 588 | } |
| 589 | writer.println(indent + "\tInhibited profiles: " + inhibits); |
| 590 | } |
| 591 | |
| 592 | /** |
| 593 | * Log a message to Log.DEBUG |
| 594 | */ |
| 595 | private void logd(String msg) { |
| 596 | if (DBG) { |
| 597 | Log.d(TAG, "[User: " + mUserId + "] " + msg); |
| 598 | } |
| 599 | } |
| 600 | |
| 601 | /** |
| 602 | * Log a message to Log.WARN |
| 603 | */ |
| 604 | private void logw(String msg) { |
| 605 | Log.w(TAG, "[User: " + mUserId + "] " + msg); |
| 606 | } |
| 607 | |
| 608 | /** |
| 609 | * Log a message to Log.ERROR |
| 610 | */ |
| 611 | private void loge(String msg) { |
| 612 | Log.e(TAG, "[User: " + mUserId + "] " + msg); |
| 613 | } |
| 614 | } |