Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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 | |
Enrico Granata | 2479034 | 2017-02-15 14:46:34 -0800 | [diff] [blame] | 19 | import android.annotation.NonNull; |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 20 | import android.annotation.Nullable; |
Enrico Granata | 3c7a666 | 2017-02-23 18:07:59 -0800 | [diff] [blame] | 21 | import android.car.Car; |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 22 | import android.car.annotation.FutureFeature; |
| 23 | import android.car.hardware.CarDiagnosticEvent; |
| 24 | import android.car.hardware.CarDiagnosticManager; |
| 25 | import android.car.hardware.ICarDiagnostic; |
| 26 | import android.car.hardware.ICarDiagnosticEventListener; |
| 27 | import android.content.Context; |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 28 | import android.os.IBinder; |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 29 | import android.os.RemoteException; |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 30 | import android.util.ArrayMap; |
| 31 | import android.util.Log; |
Enrico Granata | c239368 | 2017-05-08 18:09:58 -0700 | [diff] [blame] | 32 | import com.android.car.hal.DiagnosticHalService.DiagnosticCapabilities; |
Enrico Granata | 3c7a666 | 2017-02-23 18:07:59 -0800 | [diff] [blame] | 33 | import com.android.car.internal.CarPermission; |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 34 | import com.android.car.Listeners.ClientWithRate; |
| 35 | import com.android.car.hal.DiagnosticHalService; |
| 36 | import com.android.internal.annotations.GuardedBy; |
| 37 | import java.io.PrintWriter; |
| 38 | import java.util.ArrayList; |
| 39 | import java.util.Arrays; |
| 40 | import java.util.ConcurrentModificationException; |
| 41 | import java.util.HashMap; |
| 42 | import java.util.HashSet; |
| 43 | import java.util.LinkedList; |
| 44 | import java.util.List; |
| 45 | import java.util.Objects; |
| 46 | import java.util.Set; |
| 47 | import java.util.concurrent.locks.ReentrantLock; |
| 48 | |
| 49 | @FutureFeature |
| 50 | /** @hide */ |
| 51 | public class CarDiagnosticService extends ICarDiagnostic.Stub |
| 52 | implements CarServiceBase, DiagnosticHalService.DiagnosticListener { |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 53 | /** lock to access diagnostic structures */ |
| 54 | private final ReentrantLock mDiagnosticLock = new ReentrantLock(); |
| 55 | /** hold clients callback */ |
| 56 | @GuardedBy("mDiagnosticLock") |
| 57 | private final LinkedList<DiagnosticClient> mClients = new LinkedList<>(); |
| 58 | |
| 59 | /** key: diagnostic type. */ |
| 60 | @GuardedBy("mDiagnosticLock") |
| 61 | private final HashMap<Integer, Listeners<DiagnosticClient>> mDiagnosticListeners = |
| 62 | new HashMap<>(); |
| 63 | |
| 64 | /** the latest live frame data. */ |
| 65 | @GuardedBy("mDiagnosticLock") |
| 66 | private final LiveFrameRecord mLiveFrameDiagnosticRecord = new LiveFrameRecord(mDiagnosticLock); |
| 67 | |
| 68 | /** the latest freeze frame data (key: DTC) */ |
| 69 | @GuardedBy("mDiagnosticLock") |
| 70 | private final FreezeFrameRecord mFreezeFrameDiagnosticRecords = new FreezeFrameRecord( |
| 71 | mDiagnosticLock); |
| 72 | |
| 73 | private final DiagnosticHalService mDiagnosticHal; |
| 74 | |
| 75 | private final Context mContext; |
| 76 | |
Enrico Granata | 3c7a666 | 2017-02-23 18:07:59 -0800 | [diff] [blame] | 77 | private final CarPermission mDiagnosticReadPermission; |
| 78 | |
| 79 | private final CarPermission mDiagnosticClearPermission; |
| 80 | |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 81 | public CarDiagnosticService(Context context, DiagnosticHalService diagnosticHal) { |
| 82 | mContext = context; |
| 83 | mDiagnosticHal = diagnosticHal; |
Enrico Granata | ae25b92 | 2017-07-07 11:28:15 -0700 | [diff] [blame^] | 84 | mDiagnosticReadPermission = new CarPermission(mContext, |
| 85 | Car.PERMISSION_CAR_DIAGNOSTIC_READ_ALL); |
Enrico Granata | 3c7a666 | 2017-02-23 18:07:59 -0800 | [diff] [blame] | 86 | mDiagnosticClearPermission = new CarPermission(mContext, |
| 87 | Car.PERMISSION_CAR_DIAGNOSTIC_CLEAR); |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | @Override |
| 91 | public void init() { |
| 92 | mDiagnosticLock.lock(); |
| 93 | try { |
| 94 | mDiagnosticHal.setDiagnosticListener(this); |
| 95 | setInitialLiveFrame(); |
| 96 | setInitialFreezeFrames(); |
| 97 | } finally { |
| 98 | mDiagnosticLock.unlock(); |
| 99 | } |
| 100 | } |
| 101 | |
Enrico Granata | 2479034 | 2017-02-15 14:46:34 -0800 | [diff] [blame] | 102 | @Nullable |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 103 | private CarDiagnosticEvent setInitialLiveFrame() { |
Enrico Granata | 2479034 | 2017-02-15 14:46:34 -0800 | [diff] [blame] | 104 | CarDiagnosticEvent liveFrame = null; |
| 105 | if(mDiagnosticHal.getDiagnosticCapabilities().isLiveFrameSupported()) { |
| 106 | liveFrame = setRecentmostLiveFrame(mDiagnosticHal.getCurrentLiveFrame()); |
| 107 | } |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 108 | return liveFrame; |
| 109 | } |
| 110 | |
| 111 | private void setInitialFreezeFrames() { |
Enrico Granata | 2479034 | 2017-02-15 14:46:34 -0800 | [diff] [blame] | 112 | if(mDiagnosticHal.getDiagnosticCapabilities().isFreezeFrameSupported() && |
| 113 | mDiagnosticHal.getDiagnosticCapabilities().isFreezeFrameInfoSupported()) { |
| 114 | long[] timestamps = mDiagnosticHal.getFreezeFrameTimestamps(); |
| 115 | if (timestamps != null) { |
| 116 | for (long timestamp : timestamps) { |
| 117 | setRecentmostFreezeFrame(mDiagnosticHal.getFreezeFrame(timestamp)); |
| 118 | } |
| 119 | } |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 120 | } |
| 121 | } |
| 122 | |
Enrico Granata | 2479034 | 2017-02-15 14:46:34 -0800 | [diff] [blame] | 123 | @Nullable |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 124 | private CarDiagnosticEvent setRecentmostLiveFrame(final CarDiagnosticEvent event) { |
Enrico Granata | 2479034 | 2017-02-15 14:46:34 -0800 | [diff] [blame] | 125 | if (event != null) { |
| 126 | return mLiveFrameDiagnosticRecord.update(event.checkLiveFrame()); |
| 127 | } |
| 128 | return null; |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 129 | } |
| 130 | |
Enrico Granata | 2479034 | 2017-02-15 14:46:34 -0800 | [diff] [blame] | 131 | @Nullable |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 132 | private CarDiagnosticEvent setRecentmostFreezeFrame(final CarDiagnosticEvent event) { |
Enrico Granata | 2479034 | 2017-02-15 14:46:34 -0800 | [diff] [blame] | 133 | if (event != null) { |
| 134 | return mFreezeFrameDiagnosticRecords.update(event.checkFreezeFrame()); |
| 135 | } |
| 136 | return null; |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 137 | } |
| 138 | |
| 139 | @Override |
| 140 | public void release() { |
| 141 | mDiagnosticLock.lock(); |
| 142 | try { |
| 143 | mDiagnosticListeners.forEach( |
| 144 | (Integer frameType, Listeners diagnosticListeners) -> |
| 145 | diagnosticListeners.release()); |
| 146 | mDiagnosticListeners.clear(); |
| 147 | mLiveFrameDiagnosticRecord.disableIfNeeded(); |
| 148 | mFreezeFrameDiagnosticRecords.disableIfNeeded(); |
| 149 | mClients.clear(); |
| 150 | } finally { |
| 151 | mDiagnosticLock.unlock(); |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | private void processDiagnosticData(List<CarDiagnosticEvent> events) { |
| 156 | ArrayMap<CarDiagnosticService.DiagnosticClient, List<CarDiagnosticEvent>> eventsByClient = |
| 157 | new ArrayMap<>(); |
| 158 | |
| 159 | Listeners<DiagnosticClient> listeners = null; |
| 160 | |
| 161 | mDiagnosticLock.lock(); |
| 162 | for (CarDiagnosticEvent event : events) { |
| 163 | if (event.isLiveFrame()) { |
| 164 | // record recent-most live frame information |
| 165 | setRecentmostLiveFrame(event); |
Enrico Granata | 5e075da | 2017-04-28 15:15:44 -0700 | [diff] [blame] | 166 | listeners = mDiagnosticListeners.get(CarDiagnosticManager.FRAME_TYPE_LIVE); |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 167 | } else if (event.isFreezeFrame()) { |
| 168 | setRecentmostFreezeFrame(event); |
Enrico Granata | 5e075da | 2017-04-28 15:15:44 -0700 | [diff] [blame] | 169 | listeners = mDiagnosticListeners.get(CarDiagnosticManager.FRAME_TYPE_FREEZE); |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 170 | } else { |
| 171 | Log.w( |
| 172 | CarLog.TAG_DIAGNOSTIC, |
| 173 | String.format("received unknown diagnostic event: %s", event)); |
| 174 | continue; |
| 175 | } |
| 176 | |
| 177 | if (null != listeners) { |
| 178 | for (ClientWithRate<DiagnosticClient> clientWithRate : listeners.getClients()) { |
| 179 | DiagnosticClient client = clientWithRate.getClient(); |
| 180 | List<CarDiagnosticEvent> clientEvents = eventsByClient.computeIfAbsent(client, |
| 181 | (DiagnosticClient diagnosticClient) -> new LinkedList<>()); |
| 182 | clientEvents.add(event); |
| 183 | } |
| 184 | } |
| 185 | } |
| 186 | mDiagnosticLock.unlock(); |
| 187 | |
| 188 | for (ArrayMap.Entry<CarDiagnosticService.DiagnosticClient, List<CarDiagnosticEvent>> entry : |
| 189 | eventsByClient.entrySet()) { |
| 190 | CarDiagnosticService.DiagnosticClient client = entry.getKey(); |
| 191 | List<CarDiagnosticEvent> clientEvents = entry.getValue(); |
| 192 | |
| 193 | client.dispatchDiagnosticUpdate(clientEvents); |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | /** Received diagnostic data from car. */ |
| 198 | @Override |
| 199 | public void onDiagnosticEvents(List<CarDiagnosticEvent> events) { |
| 200 | processDiagnosticData(events); |
| 201 | } |
| 202 | |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 203 | @Override |
| 204 | public boolean registerOrUpdateDiagnosticListener(int frameType, int rate, |
| 205 | ICarDiagnosticEventListener listener) { |
| 206 | boolean shouldStartDiagnostics = false; |
| 207 | CarDiagnosticService.DiagnosticClient diagnosticClient = null; |
| 208 | Integer oldRate = null; |
| 209 | Listeners<DiagnosticClient> diagnosticListeners = null; |
| 210 | mDiagnosticLock.lock(); |
| 211 | try { |
Enrico Granata | 3c7a666 | 2017-02-23 18:07:59 -0800 | [diff] [blame] | 212 | mDiagnosticReadPermission.assertGranted(); |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 213 | diagnosticClient = findDiagnosticClientLocked(listener); |
| 214 | Listeners.ClientWithRate<DiagnosticClient> diagnosticClientWithRate = null; |
| 215 | if (diagnosticClient == null) { |
| 216 | diagnosticClient = new DiagnosticClient(listener); |
| 217 | try { |
| 218 | listener.asBinder().linkToDeath(diagnosticClient, 0); |
| 219 | } catch (RemoteException e) { |
| 220 | Log.w( |
| 221 | CarLog.TAG_DIAGNOSTIC, |
| 222 | String.format( |
| 223 | "received RemoteException trying to register listener for %s", |
| 224 | frameType)); |
| 225 | return false; |
| 226 | } |
| 227 | mClients.add(diagnosticClient); |
| 228 | } |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 229 | diagnosticListeners = mDiagnosticListeners.get(frameType); |
| 230 | if (diagnosticListeners == null) { |
| 231 | diagnosticListeners = new Listeners<>(rate); |
| 232 | mDiagnosticListeners.put(frameType, diagnosticListeners); |
| 233 | shouldStartDiagnostics = true; |
| 234 | } else { |
| 235 | oldRate = diagnosticListeners.getRate(); |
| 236 | diagnosticClientWithRate = |
| 237 | diagnosticListeners.findClientWithRate(diagnosticClient); |
| 238 | } |
| 239 | if (diagnosticClientWithRate == null) { |
| 240 | diagnosticClientWithRate = |
| 241 | new ClientWithRate<>(diagnosticClient, rate); |
| 242 | diagnosticListeners.addClientWithRate(diagnosticClientWithRate); |
| 243 | } else { |
| 244 | diagnosticClientWithRate.setRate(rate); |
| 245 | } |
| 246 | if (diagnosticListeners.getRate() > rate) { |
| 247 | diagnosticListeners.setRate(rate); |
| 248 | shouldStartDiagnostics = true; |
| 249 | } |
| 250 | diagnosticClient.addDiagnostic(frameType); |
| 251 | } finally { |
| 252 | mDiagnosticLock.unlock(); |
| 253 | } |
| 254 | Log.i( |
| 255 | CarLog.TAG_DIAGNOSTIC, |
| 256 | String.format( |
| 257 | "shouldStartDiagnostics = %s for %s at rate %d", |
| 258 | shouldStartDiagnostics, frameType, rate)); |
| 259 | // start diagnostic outside lock as it can take time. |
| 260 | if (shouldStartDiagnostics) { |
| 261 | if (!startDiagnostic(frameType, rate)) { |
| 262 | // failed. so remove from active diagnostic list. |
| 263 | Log.w(CarLog.TAG_DIAGNOSTIC, "startDiagnostic failed"); |
| 264 | mDiagnosticLock.lock(); |
| 265 | try { |
| 266 | diagnosticClient.removeDiagnostic(frameType); |
| 267 | if (oldRate != null) { |
| 268 | diagnosticListeners.setRate(oldRate); |
| 269 | } else { |
| 270 | mDiagnosticListeners.remove(frameType); |
| 271 | } |
| 272 | } finally { |
| 273 | mDiagnosticLock.unlock(); |
| 274 | } |
| 275 | return false; |
| 276 | } |
| 277 | } |
| 278 | return true; |
| 279 | } |
| 280 | |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 281 | private boolean startDiagnostic(int frameType, int rate) { |
| 282 | Log.i(CarLog.TAG_DIAGNOSTIC, String.format("starting diagnostic %s at rate %d", |
| 283 | frameType, rate)); |
| 284 | DiagnosticHalService diagnosticHal = getDiagnosticHal(); |
| 285 | if (diagnosticHal != null) { |
| 286 | if (!diagnosticHal.isReady()) { |
| 287 | Log.w(CarLog.TAG_DIAGNOSTIC, "diagnosticHal not ready"); |
| 288 | return false; |
| 289 | } |
| 290 | switch (frameType) { |
Enrico Granata | 5e075da | 2017-04-28 15:15:44 -0700 | [diff] [blame] | 291 | case CarDiagnosticManager.FRAME_TYPE_LIVE: |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 292 | if (mLiveFrameDiagnosticRecord.isEnabled()) { |
| 293 | return true; |
| 294 | } |
Enrico Granata | 5e075da | 2017-04-28 15:15:44 -0700 | [diff] [blame] | 295 | if (diagnosticHal.requestSensorStart(CarDiagnosticManager.FRAME_TYPE_LIVE, |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 296 | rate)) { |
| 297 | mLiveFrameDiagnosticRecord.enable(); |
| 298 | return true; |
| 299 | } |
| 300 | break; |
Enrico Granata | 5e075da | 2017-04-28 15:15:44 -0700 | [diff] [blame] | 301 | case CarDiagnosticManager.FRAME_TYPE_FREEZE: |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 302 | if (mFreezeFrameDiagnosticRecords.isEnabled()) { |
| 303 | return true; |
| 304 | } |
Enrico Granata | 5e075da | 2017-04-28 15:15:44 -0700 | [diff] [blame] | 305 | if (diagnosticHal.requestSensorStart(CarDiagnosticManager.FRAME_TYPE_FREEZE, |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 306 | rate)) { |
| 307 | mFreezeFrameDiagnosticRecords.enable(); |
| 308 | return true; |
| 309 | } |
| 310 | break; |
| 311 | } |
| 312 | } |
| 313 | return false; |
| 314 | } |
| 315 | |
| 316 | @Override |
| 317 | public void unregisterDiagnosticListener( |
| 318 | int frameType, ICarDiagnosticEventListener listener) { |
| 319 | boolean shouldStopDiagnostic = false; |
| 320 | boolean shouldRestartDiagnostic = false; |
| 321 | int newRate = 0; |
| 322 | mDiagnosticLock.lock(); |
| 323 | try { |
| 324 | DiagnosticClient diagnosticClient = findDiagnosticClientLocked(listener); |
| 325 | if (diagnosticClient == null) { |
| 326 | Log.i( |
| 327 | CarLog.TAG_DIAGNOSTIC, |
| 328 | String.format( |
| 329 | "trying to unregister diagnostic client %s for %s which is not registered", |
| 330 | listener, frameType)); |
| 331 | // never registered or already unregistered. |
| 332 | return; |
| 333 | } |
| 334 | diagnosticClient.removeDiagnostic(frameType); |
| 335 | if (diagnosticClient.getNumberOfActiveDiagnostic() == 0) { |
| 336 | diagnosticClient.release(); |
| 337 | mClients.remove(diagnosticClient); |
| 338 | } |
| 339 | Listeners<DiagnosticClient> diagnosticListeners = mDiagnosticListeners.get(frameType); |
| 340 | if (diagnosticListeners == null) { |
| 341 | // diagnostic not active |
| 342 | return; |
| 343 | } |
| 344 | ClientWithRate<DiagnosticClient> clientWithRate = |
| 345 | diagnosticListeners.findClientWithRate(diagnosticClient); |
| 346 | if (clientWithRate == null) { |
| 347 | return; |
| 348 | } |
| 349 | diagnosticListeners.removeClientWithRate(clientWithRate); |
| 350 | if (diagnosticListeners.getNumberOfClients() == 0) { |
| 351 | shouldStopDiagnostic = true; |
| 352 | mDiagnosticListeners.remove(frameType); |
| 353 | } else if (diagnosticListeners.updateRate()) { // rate changed |
| 354 | newRate = diagnosticListeners.getRate(); |
| 355 | shouldRestartDiagnostic = true; |
| 356 | } |
| 357 | } finally { |
| 358 | mDiagnosticLock.unlock(); |
| 359 | } |
| 360 | Log.i( |
| 361 | CarLog.TAG_DIAGNOSTIC, |
| 362 | String.format( |
| 363 | "shouldStopDiagnostic = %s, shouldRestartDiagnostic = %s for type %s", |
| 364 | shouldStopDiagnostic, shouldRestartDiagnostic, frameType)); |
| 365 | if (shouldStopDiagnostic) { |
| 366 | stopDiagnostic(frameType); |
| 367 | } else if (shouldRestartDiagnostic) { |
| 368 | startDiagnostic(frameType, newRate); |
| 369 | } |
| 370 | } |
| 371 | |
| 372 | private void stopDiagnostic(int frameType) { |
| 373 | DiagnosticHalService diagnosticHal = getDiagnosticHal(); |
| 374 | if (diagnosticHal == null || !diagnosticHal.isReady()) { |
| 375 | Log.w(CarLog.TAG_DIAGNOSTIC, "diagnosticHal not ready"); |
| 376 | return; |
| 377 | } |
| 378 | switch (frameType) { |
Enrico Granata | 5e075da | 2017-04-28 15:15:44 -0700 | [diff] [blame] | 379 | case CarDiagnosticManager.FRAME_TYPE_LIVE: |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 380 | if (mLiveFrameDiagnosticRecord.disableIfNeeded()) |
Enrico Granata | 5e075da | 2017-04-28 15:15:44 -0700 | [diff] [blame] | 381 | diagnosticHal.requestSensorStop(CarDiagnosticManager.FRAME_TYPE_LIVE); |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 382 | break; |
Enrico Granata | 5e075da | 2017-04-28 15:15:44 -0700 | [diff] [blame] | 383 | case CarDiagnosticManager.FRAME_TYPE_FREEZE: |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 384 | if (mFreezeFrameDiagnosticRecords.disableIfNeeded()) |
Enrico Granata | 5e075da | 2017-04-28 15:15:44 -0700 | [diff] [blame] | 385 | diagnosticHal.requestSensorStop(CarDiagnosticManager.FRAME_TYPE_FREEZE); |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 386 | break; |
| 387 | } |
| 388 | } |
| 389 | |
| 390 | private DiagnosticHalService getDiagnosticHal() { |
| 391 | return mDiagnosticHal; |
| 392 | } |
| 393 | |
Enrico Granata | c239368 | 2017-05-08 18:09:58 -0700 | [diff] [blame] | 394 | // Expose DiagnosticCapabilities |
| 395 | public boolean isLiveFrameSupported() { |
| 396 | return getDiagnosticHal().getDiagnosticCapabilities().isLiveFrameSupported(); |
| 397 | } |
| 398 | |
| 399 | public boolean isFreezeFrameSupported() { |
| 400 | return getDiagnosticHal().getDiagnosticCapabilities().isFreezeFrameSupported(); |
| 401 | } |
| 402 | |
| 403 | public boolean isFreezeFrameTimestampSupported() { |
| 404 | DiagnosticCapabilities diagnosticCapabilities = |
| 405 | getDiagnosticHal().getDiagnosticCapabilities(); |
| 406 | return diagnosticCapabilities.isFreezeFrameInfoSupported() && |
| 407 | diagnosticCapabilities.isFreezeFrameSupported(); |
| 408 | } |
| 409 | |
| 410 | public boolean isFreezeFrameClearSupported() { |
| 411 | DiagnosticCapabilities diagnosticCapabilities = |
| 412 | getDiagnosticHal().getDiagnosticCapabilities(); |
| 413 | return diagnosticCapabilities.isFreezeFrameClearSupported() && |
| 414 | diagnosticCapabilities.isFreezeFrameSupported(); |
| 415 | } |
| 416 | |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 417 | // ICarDiagnostic implementations |
| 418 | |
| 419 | @Override |
| 420 | public CarDiagnosticEvent getLatestLiveFrame() { |
| 421 | mLiveFrameDiagnosticRecord.lock(); |
| 422 | CarDiagnosticEvent liveFrame = mLiveFrameDiagnosticRecord.getLastEvent(); |
| 423 | mLiveFrameDiagnosticRecord.unlock(); |
| 424 | return liveFrame; |
| 425 | } |
| 426 | |
| 427 | @Override |
| 428 | public long[] getFreezeFrameTimestamps() { |
| 429 | mFreezeFrameDiagnosticRecords.lock(); |
| 430 | long[] timestamps = mFreezeFrameDiagnosticRecords.getFreezeFrameTimestamps(); |
| 431 | mFreezeFrameDiagnosticRecords.unlock(); |
| 432 | return timestamps; |
| 433 | } |
| 434 | |
| 435 | @Override |
| 436 | @Nullable |
| 437 | public CarDiagnosticEvent getFreezeFrame(long timestamp) { |
| 438 | mFreezeFrameDiagnosticRecords.lock(); |
| 439 | CarDiagnosticEvent freezeFrame = mFreezeFrameDiagnosticRecords.getEvent(timestamp); |
| 440 | mFreezeFrameDiagnosticRecords.unlock(); |
| 441 | return freezeFrame; |
| 442 | } |
| 443 | |
| 444 | @Override |
| 445 | public boolean clearFreezeFrames(long... timestamps) { |
Enrico Granata | 3c7a666 | 2017-02-23 18:07:59 -0800 | [diff] [blame] | 446 | mDiagnosticClearPermission.assertGranted(); |
Enrico Granata | 2479034 | 2017-02-15 14:46:34 -0800 | [diff] [blame] | 447 | if (mDiagnosticHal.getDiagnosticCapabilities().isFreezeFrameClearSupported()) { |
| 448 | mFreezeFrameDiagnosticRecords.lock(); |
| 449 | mDiagnosticHal.clearFreezeFrames(timestamps); |
| 450 | mFreezeFrameDiagnosticRecords.clearEvents(); |
| 451 | mFreezeFrameDiagnosticRecords.unlock(); |
| 452 | return true; |
| 453 | } |
| 454 | return false; |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 455 | } |
| 456 | |
| 457 | /** |
| 458 | * Find DiagnosticClient from client list and return it. This should be called with mClients |
| 459 | * locked. |
| 460 | * |
| 461 | * @param listener |
| 462 | * @return null if not found. |
| 463 | */ |
| 464 | private CarDiagnosticService.DiagnosticClient findDiagnosticClientLocked( |
| 465 | ICarDiagnosticEventListener listener) { |
| 466 | IBinder binder = listener.asBinder(); |
| 467 | for (DiagnosticClient diagnosticClient : mClients) { |
| 468 | if (diagnosticClient.isHoldingListenerBinder(binder)) { |
| 469 | return diagnosticClient; |
| 470 | } |
| 471 | } |
| 472 | return null; |
| 473 | } |
| 474 | |
| 475 | private void removeClient(DiagnosticClient diagnosticClient) { |
| 476 | mDiagnosticLock.lock(); |
| 477 | try { |
| 478 | for (int diagnostic : diagnosticClient.getDiagnosticArray()) { |
| 479 | unregisterDiagnosticListener( |
| 480 | diagnostic, diagnosticClient.getICarDiagnosticEventListener()); |
| 481 | } |
| 482 | mClients.remove(diagnosticClient); |
| 483 | } finally { |
| 484 | mDiagnosticLock.unlock(); |
| 485 | } |
| 486 | } |
| 487 | |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 488 | /** internal instance for pending client request */ |
| 489 | private class DiagnosticClient implements Listeners.IListener { |
| 490 | /** callback for diagnostic events */ |
| 491 | private final ICarDiagnosticEventListener mListener; |
| 492 | |
| 493 | private final Set<Integer> mActiveDiagnostics = new HashSet<>(); |
| 494 | |
| 495 | /** when false, it is already released */ |
| 496 | private volatile boolean mActive = true; |
| 497 | |
| 498 | DiagnosticClient(ICarDiagnosticEventListener listener) { |
| 499 | this.mListener = listener; |
| 500 | } |
| 501 | |
| 502 | @Override |
| 503 | public boolean equals(Object o) { |
| 504 | if (o instanceof CarDiagnosticService.DiagnosticClient |
| 505 | && mListener.asBinder() |
| 506 | == ((CarDiagnosticService.DiagnosticClient) o).mListener.asBinder()) { |
| 507 | return true; |
| 508 | } |
| 509 | return false; |
| 510 | } |
| 511 | |
| 512 | boolean isHoldingListenerBinder(IBinder listenerBinder) { |
| 513 | return mListener.asBinder() == listenerBinder; |
| 514 | } |
| 515 | |
| 516 | void addDiagnostic(int frameType) { |
| 517 | mActiveDiagnostics.add(frameType); |
| 518 | } |
| 519 | |
| 520 | void removeDiagnostic(int frameType) { |
| 521 | mActiveDiagnostics.remove(frameType); |
| 522 | } |
| 523 | |
| 524 | int getNumberOfActiveDiagnostic() { |
| 525 | return mActiveDiagnostics.size(); |
| 526 | } |
| 527 | |
| 528 | int[] getDiagnosticArray() { |
| 529 | return mActiveDiagnostics.stream().mapToInt(Integer::intValue).toArray(); |
| 530 | } |
| 531 | |
| 532 | ICarDiagnosticEventListener getICarDiagnosticEventListener() { |
| 533 | return mListener; |
| 534 | } |
| 535 | |
| 536 | /** Client dead. should remove all diagnostic requests from client */ |
| 537 | @Override |
| 538 | public void binderDied() { |
| 539 | mListener.asBinder().unlinkToDeath(this, 0); |
| 540 | removeClient(this); |
| 541 | } |
| 542 | |
| 543 | void dispatchDiagnosticUpdate(List<CarDiagnosticEvent> events) { |
| 544 | if (events.size() == 0) { |
| 545 | return; |
| 546 | } |
| 547 | if (mActive) { |
| 548 | try { |
| 549 | mListener.onDiagnosticEvents(events); |
| 550 | } catch (RemoteException e) { |
| 551 | //ignore. crash will be handled by death handler |
| 552 | } |
| 553 | } else { |
| 554 | } |
| 555 | } |
| 556 | |
| 557 | @Override |
| 558 | public void release() { |
| 559 | if (mActive) { |
| 560 | mListener.asBinder().unlinkToDeath(this, 0); |
| 561 | mActiveDiagnostics.clear(); |
| 562 | mActive = false; |
| 563 | } |
| 564 | } |
| 565 | } |
| 566 | |
| 567 | private static abstract class DiagnosticRecord { |
| 568 | private final ReentrantLock mLock; |
| 569 | protected boolean mEnabled = false; |
| 570 | |
| 571 | DiagnosticRecord(ReentrantLock lock) { |
| 572 | mLock = lock; |
| 573 | } |
| 574 | |
| 575 | void lock() { |
| 576 | mLock.lock(); |
| 577 | } |
| 578 | |
| 579 | void unlock() { |
| 580 | mLock.unlock(); |
| 581 | } |
| 582 | |
| 583 | boolean isEnabled() { |
| 584 | return mEnabled; |
| 585 | } |
| 586 | |
| 587 | void enable() { |
| 588 | mEnabled = true; |
| 589 | } |
| 590 | |
| 591 | abstract boolean disableIfNeeded(); |
| 592 | abstract CarDiagnosticEvent update(CarDiagnosticEvent newEvent); |
| 593 | } |
| 594 | |
| 595 | private static class LiveFrameRecord extends DiagnosticRecord { |
| 596 | /** Store the most recent live-frame. */ |
| 597 | CarDiagnosticEvent mLastEvent = null; |
| 598 | |
| 599 | LiveFrameRecord(ReentrantLock lock) { |
| 600 | super(lock); |
| 601 | } |
| 602 | |
| 603 | @Override |
| 604 | boolean disableIfNeeded() { |
| 605 | if (!mEnabled) return false; |
| 606 | mEnabled = false; |
| 607 | mLastEvent = null; |
| 608 | return true; |
| 609 | } |
| 610 | |
| 611 | @Override |
Enrico Granata | 2479034 | 2017-02-15 14:46:34 -0800 | [diff] [blame] | 612 | CarDiagnosticEvent update(@NonNull CarDiagnosticEvent newEvent) { |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 613 | newEvent = Objects.requireNonNull(newEvent); |
| 614 | if((null == mLastEvent) || mLastEvent.isEarlierThan(newEvent)) |
| 615 | mLastEvent = newEvent; |
| 616 | return mLastEvent; |
| 617 | } |
| 618 | |
| 619 | CarDiagnosticEvent getLastEvent() { |
| 620 | return mLastEvent; |
| 621 | } |
| 622 | } |
| 623 | |
| 624 | private static class FreezeFrameRecord extends DiagnosticRecord { |
| 625 | /** Store the timestamp --> freeze frame mapping. */ |
| 626 | HashMap<Long, CarDiagnosticEvent> mEvents = new HashMap<>(); |
| 627 | |
| 628 | FreezeFrameRecord(ReentrantLock lock) { |
| 629 | super(lock); |
| 630 | } |
| 631 | |
| 632 | @Override |
| 633 | boolean disableIfNeeded() { |
| 634 | if (!mEnabled) return false; |
| 635 | mEnabled = false; |
| 636 | clearEvents(); |
| 637 | return true; |
| 638 | } |
| 639 | |
| 640 | void clearEvents() { |
| 641 | mEvents.clear(); |
| 642 | } |
| 643 | |
| 644 | @Override |
Enrico Granata | 2479034 | 2017-02-15 14:46:34 -0800 | [diff] [blame] | 645 | CarDiagnosticEvent update(@NonNull CarDiagnosticEvent newEvent) { |
Enrico Granata | 5c56d2a | 2017-02-07 15:38:12 -0800 | [diff] [blame] | 646 | mEvents.put(newEvent.timestamp, newEvent); |
| 647 | return newEvent; |
| 648 | } |
| 649 | |
| 650 | long[] getFreezeFrameTimestamps() { |
| 651 | return mEvents.keySet().stream().mapToLong(Long::longValue).toArray(); |
| 652 | } |
| 653 | |
| 654 | CarDiagnosticEvent getEvent(long timestamp) { |
| 655 | return mEvents.get(timestamp); |
| 656 | } |
| 657 | |
| 658 | Iterable<CarDiagnosticEvent> getEvents() { |
| 659 | return mEvents.values(); |
| 660 | } |
| 661 | } |
| 662 | |
| 663 | @Override |
| 664 | public void dump(PrintWriter writer) { |
| 665 | writer.println("*CarDiagnosticService*"); |
| 666 | writer.println("**last events for diagnostics**"); |
| 667 | if (null != mLiveFrameDiagnosticRecord.getLastEvent()) { |
| 668 | writer.println("last live frame event: "); |
| 669 | writer.println(mLiveFrameDiagnosticRecord.getLastEvent()); |
| 670 | } |
| 671 | writer.println("freeze frame events: "); |
| 672 | mFreezeFrameDiagnosticRecords.getEvents().forEach(writer::println); |
| 673 | writer.println("**clients**"); |
| 674 | try { |
| 675 | for (DiagnosticClient client : mClients) { |
| 676 | if (client != null) { |
| 677 | try { |
| 678 | writer.println( |
| 679 | "binder:" |
| 680 | + client.mListener |
| 681 | + " active diagnostics:" |
| 682 | + Arrays.toString(client.getDiagnosticArray())); |
| 683 | } catch (ConcurrentModificationException e) { |
| 684 | writer.println("concurrent modification happened"); |
| 685 | } |
| 686 | } else { |
| 687 | writer.println("null client"); |
| 688 | } |
| 689 | } |
| 690 | } catch (ConcurrentModificationException e) { |
| 691 | writer.println("concurrent modification happened"); |
| 692 | } |
| 693 | writer.println("**diagnostic listeners**"); |
| 694 | try { |
| 695 | for (int diagnostic : mDiagnosticListeners.keySet()) { |
| 696 | Listeners diagnosticListeners = mDiagnosticListeners.get(diagnostic); |
| 697 | if (diagnosticListeners != null) { |
| 698 | writer.println( |
| 699 | " Diagnostic:" |
| 700 | + diagnostic |
| 701 | + " num client:" |
| 702 | + diagnosticListeners.getNumberOfClients() |
| 703 | + " rate:" |
| 704 | + diagnosticListeners.getRate()); |
| 705 | } |
| 706 | } |
| 707 | } catch (ConcurrentModificationException e) { |
| 708 | writer.println("concurrent modification happened"); |
| 709 | } |
| 710 | } |
| 711 | } |