| /* |
| * Copyright (C) 2021 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.car.watchdog; |
| |
| import static android.automotive.watchdog.internal.ResourceOveruseActionType.KILLED; |
| import static android.automotive.watchdog.internal.ResourceOveruseActionType.KILLED_RECURRING_OVERUSE; |
| import static android.automotive.watchdog.internal.ResourceOveruseActionType.NOT_KILLED; |
| import static android.automotive.watchdog.internal.ResourceOveruseActionType.NOT_KILLED_USER_OPTED; |
| import static android.car.watchdog.CarWatchdogManager.FLAG_RESOURCE_OVERUSE_IO; |
| import static android.car.watchdog.CarWatchdogManager.STATS_PERIOD_CURRENT_DAY; |
| import static android.car.watchdog.CarWatchdogManager.STATS_PERIOD_PAST_15_DAYS; |
| import static android.car.watchdog.CarWatchdogManager.STATS_PERIOD_PAST_30_DAYS; |
| import static android.car.watchdog.CarWatchdogManager.STATS_PERIOD_PAST_3_DAYS; |
| import static android.car.watchdog.CarWatchdogManager.STATS_PERIOD_PAST_7_DAYS; |
| import static android.car.watchdog.PackageKillableState.KILLABLE_STATE_NEVER; |
| import static android.car.watchdog.PackageKillableState.KILLABLE_STATE_NO; |
| import static android.car.watchdog.PackageKillableState.KILLABLE_STATE_YES; |
| import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DISABLED; |
| import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED; |
| import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER; |
| |
| import static com.android.car.watchdog.CarWatchdogService.DEBUG; |
| import static com.android.car.watchdog.CarWatchdogService.SYSTEM_INSTANCE; |
| import static com.android.car.watchdog.CarWatchdogService.TAG; |
| import static com.android.car.watchdog.PackageInfoHandler.SHARED_PACKAGE_PREFIX; |
| import static com.android.car.watchdog.WatchdogStorage.STATS_TEMPORAL_UNIT; |
| import static com.android.car.watchdog.WatchdogStorage.ZONE_OFFSET; |
| |
| import android.annotation.NonNull; |
| import android.annotation.UserIdInt; |
| import android.app.ActivityThread; |
| import android.automotive.watchdog.ResourceType; |
| import android.automotive.watchdog.internal.ApplicationCategoryType; |
| import android.automotive.watchdog.internal.ComponentType; |
| import android.automotive.watchdog.internal.PackageIdentifier; |
| import android.automotive.watchdog.internal.PackageIoOveruseStats; |
| import android.automotive.watchdog.internal.PackageMetadata; |
| import android.automotive.watchdog.internal.PackageResourceOveruseAction; |
| import android.automotive.watchdog.internal.PerStateIoOveruseThreshold; |
| import android.automotive.watchdog.internal.ResourceSpecificConfiguration; |
| import android.car.watchdog.CarWatchdogManager; |
| import android.car.watchdog.IResourceOveruseListener; |
| import android.car.watchdog.IoOveruseAlertThreshold; |
| import android.car.watchdog.IoOveruseConfiguration; |
| import android.car.watchdog.IoOveruseStats; |
| import android.car.watchdog.PackageKillableState; |
| import android.car.watchdog.PackageKillableState.KillableState; |
| import android.car.watchdog.PerStateBytes; |
| import android.car.watchdog.ResourceOveruseConfiguration; |
| import android.car.watchdog.ResourceOveruseStats; |
| import android.car.watchdoglib.CarWatchdogDaemonHelper; |
| import android.content.Context; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.IPackageManager; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.os.Binder; |
| import android.os.Handler; |
| import android.os.HandlerThread; |
| import android.os.IBinder; |
| import android.os.Looper; |
| import android.os.RemoteException; |
| import android.os.SystemClock; |
| import android.os.TransactionTooLargeException; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.util.ArrayMap; |
| import android.util.ArraySet; |
| import android.util.IndentingPrintWriter; |
| import android.util.SparseArray; |
| import android.util.SparseBooleanArray; |
| |
| import com.android.car.CarServiceUtils; |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.util.Preconditions; |
| import com.android.server.utils.Slogf; |
| |
| import java.time.ZoneOffset; |
| import java.time.ZonedDateTime; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Set; |
| import java.util.function.BiFunction; |
| import java.util.function.Consumer; |
| |
| /** |
| * Handles system resource performance monitoring module. |
| */ |
| public final class WatchdogPerfHandler { |
| public static final String INTERNAL_APPLICATION_CATEGORY_TYPE_MAPS = "MAPS"; |
| public static final String INTERNAL_APPLICATION_CATEGORY_TYPE_MEDIA = "MEDIA"; |
| public static final String INTERNAL_APPLICATION_CATEGORY_TYPE_UNKNOWN = "UNKNOWN"; |
| |
| static final long RESOURCE_OVERUSE_KILLING_DELAY_MILLS = 10_000; |
| |
| private static final long MAX_WAIT_TIME_MILLS = 3_000; |
| |
| private final Context mContext; |
| private final CarWatchdogDaemonHelper mCarWatchdogDaemonHelper; |
| private final PackageInfoHandler mPackageInfoHandler; |
| private final Handler mMainHandler; |
| private final HandlerThread mHandlerThread; |
| private final WatchdogStorage mWatchdogStorage; |
| private final Object mLock = new Object(); |
| @GuardedBy("mLock") |
| private final ArrayMap<String, PackageResourceUsage> mUsageByUserPackage = new ArrayMap<>(); |
| @GuardedBy("mLock") |
| private final List<PackageResourceOveruseAction> mOveruseActionsByUserPackage = |
| new ArrayList<>(); |
| @GuardedBy("mLock") |
| private final SparseArray<ArrayList<ResourceOveruseListenerInfo>> mOveruseListenerInfosByUid = |
| new SparseArray<>(); |
| @GuardedBy("mLock") |
| private final SparseArray<ArrayList<ResourceOveruseListenerInfo>> |
| mOveruseSystemListenerInfosByUid = new SparseArray<>(); |
| /* Set of safe-to-kill system and vendor packages. */ |
| @GuardedBy("mLock") |
| public final ArraySet<String> mSafeToKillSystemPackages = new ArraySet<>(); |
| @GuardedBy("mLock") |
| public final ArraySet<String> mSafeToKillVendorPackages = new ArraySet<>(); |
| /* Default killable state for packages when not updated by the user. */ |
| @GuardedBy("mLock") |
| public final ArraySet<String> mDefaultNotKillableGenericPackages = new ArraySet<>(); |
| @GuardedBy("mLock") |
| private ZonedDateTime mLatestStatsReportDate; |
| @GuardedBy("mLock") |
| private List<android.automotive.watchdog.internal.ResourceOveruseConfiguration> |
| mPendingSetResourceOveruseConfigurationsRequest = null; |
| @GuardedBy("mLock") |
| boolean mIsConnectedToDaemon; |
| @GuardedBy("mLock") |
| boolean mIsWrittenToDatabase; |
| @GuardedBy("mLock") |
| private TimeSourceInterface mTimeSource; |
| @GuardedBy("mLock") |
| long mResourceOveruseKillingDelayMills; |
| |
| public WatchdogPerfHandler(Context context, CarWatchdogDaemonHelper daemonHelper, |
| PackageInfoHandler packageInfoHandler, WatchdogStorage watchdogStorage) { |
| mContext = context; |
| mCarWatchdogDaemonHelper = daemonHelper; |
| mPackageInfoHandler = packageInfoHandler; |
| mMainHandler = new Handler(Looper.getMainLooper()); |
| mHandlerThread = CarServiceUtils.getHandlerThread(CarWatchdogService.class.getSimpleName()); |
| mWatchdogStorage = watchdogStorage; |
| mTimeSource = SYSTEM_INSTANCE; |
| mResourceOveruseKillingDelayMills = RESOURCE_OVERUSE_KILLING_DELAY_MILLS; |
| } |
| |
| /** Initializes the handler. */ |
| public void init() { |
| /* First database read is expensive, so post it on a separate handler thread. */ |
| mHandlerThread.getThreadHandler().post(() -> { |
| readFromDatabase(); |
| synchronized (mLock) { |
| checkAndHandleDateChangeLocked(); |
| mIsWrittenToDatabase = false; |
| }}); |
| if (DEBUG) { |
| Slogf.d(TAG, "WatchdogPerfHandler is initialized"); |
| } |
| } |
| |
| /** Dumps its state. */ |
| public void dump(IndentingPrintWriter writer) { |
| /* |
| * TODO(b/183436216): Implement this method. |
| */ |
| } |
| |
| /** Retries any pending requests on re-connecting to the daemon */ |
| public void onDaemonConnectionChange(boolean isConnected) { |
| boolean hasPendingRequest; |
| synchronized (mLock) { |
| mIsConnectedToDaemon = isConnected; |
| hasPendingRequest = mPendingSetResourceOveruseConfigurationsRequest != null; |
| } |
| if (isConnected) { |
| if (hasPendingRequest) { |
| /* |
| * Retry pending set resource overuse configuration request before processing any |
| * new set/get requests. Thus notify the waiting requests only after the retry |
| * completes. |
| */ |
| retryPendingSetResourceOveruseConfigurations(); |
| } else { |
| /* Start fetch/sync configs only when there are no pending set requests because the |
| * above retry starts fetch/sync configs on success. If the retry fails, the daemon |
| * has crashed and shouldn't start fetchAndSyncResourceOveruseConfigurations. |
| */ |
| mMainHandler.post(this::fetchAndSyncResourceOveruseConfigurations); |
| } |
| } |
| synchronized (mLock) { |
| mLock.notifyAll(); |
| } |
| } |
| |
| /** Returns resource overuse stats for the calling package. */ |
| @NonNull |
| public ResourceOveruseStats getResourceOveruseStats( |
| @CarWatchdogManager.ResourceOveruseFlag int resourceOveruseFlag, |
| @CarWatchdogManager.StatsPeriod int maxStatsPeriod) { |
| Preconditions.checkArgument((resourceOveruseFlag > 0), |
| "Must provide valid resource overuse flag"); |
| Preconditions.checkArgument((maxStatsPeriod > 0), |
| "Must provide valid maximum stats period"); |
| // When more resource stats are added, make this as optional. |
| Preconditions.checkArgument((resourceOveruseFlag & FLAG_RESOURCE_OVERUSE_IO) != 0, |
| "Must provide resource I/O overuse flag"); |
| int callingUid = Binder.getCallingUid(); |
| int callingUserId = UserHandle.getUserId(callingUid); |
| UserHandle callingUserHandle = UserHandle.of(callingUserId); |
| String genericPackageName = |
| mPackageInfoHandler.getNamesForUids(new int[]{callingUid}) |
| .get(callingUid, null); |
| if (genericPackageName == null) { |
| Slogf.w(TAG, "Failed to fetch package info for uid %d", callingUid); |
| return new ResourceOveruseStats.Builder("", callingUserHandle).build(); |
| } |
| ResourceOveruseStats.Builder statsBuilder = |
| new ResourceOveruseStats.Builder(genericPackageName, callingUserHandle); |
| statsBuilder.setIoOveruseStats( |
| getIoOveruseStatsForPeriod(callingUserId, genericPackageName, maxStatsPeriod)); |
| if (DEBUG) { |
| Slogf.d(TAG, "Returning all resource overuse stats for calling uid %d [user %d and " |
| + "package '%s']", callingUid, callingUserId, genericPackageName); |
| } |
| return statsBuilder.build(); |
| } |
| |
| /** Returns resource overuse stats for all packages. */ |
| @NonNull |
| public List<ResourceOveruseStats> getAllResourceOveruseStats( |
| @CarWatchdogManager.ResourceOveruseFlag int resourceOveruseFlag, |
| @CarWatchdogManager.MinimumStatsFlag int minimumStatsFlag, |
| @CarWatchdogManager.StatsPeriod int maxStatsPeriod) { |
| Preconditions.checkArgument((resourceOveruseFlag > 0), |
| "Must provide valid resource overuse flag"); |
| Preconditions.checkArgument((maxStatsPeriod > 0), |
| "Must provide valid maximum stats period"); |
| // When more resource types are added, make this as optional. |
| Preconditions.checkArgument((resourceOveruseFlag & FLAG_RESOURCE_OVERUSE_IO) != 0, |
| "Must provide resource I/O overuse flag"); |
| long minimumBytesWritten = getMinimumBytesWritten(minimumStatsFlag); |
| List<ResourceOveruseStats> allStats = new ArrayList<>(); |
| synchronized (mLock) { |
| for (int i = 0; i < mUsageByUserPackage.size(); ++i) { |
| PackageResourceUsage usage = mUsageByUserPackage.valueAt(i); |
| ResourceOveruseStats.Builder statsBuilder = usage.getResourceOveruseStatsBuilder(); |
| IoOveruseStats ioOveruseStats = |
| getIoOveruseStatsLocked(usage, minimumBytesWritten, maxStatsPeriod); |
| if (ioOveruseStats == null) { |
| continue; |
| } |
| allStats.add(statsBuilder.setIoOveruseStats(ioOveruseStats).build()); |
| } |
| } |
| if (DEBUG) { |
| Slogf.d(TAG, "Returning all resource overuse stats"); |
| } |
| return allStats; |
| } |
| |
| /** Returns resource overuse stats for the specified user package. */ |
| @NonNull |
| public ResourceOveruseStats getResourceOveruseStatsForUserPackage( |
| @NonNull String packageName, @NonNull UserHandle userHandle, |
| @CarWatchdogManager.ResourceOveruseFlag int resourceOveruseFlag, |
| @CarWatchdogManager.StatsPeriod int maxStatsPeriod) { |
| Objects.requireNonNull(packageName, "Package name must be non-null"); |
| Objects.requireNonNull(userHandle, "User handle must be non-null"); |
| Preconditions.checkArgument(!userHandle.equals(UserHandle.ALL), |
| "Must provide the user handle for a specific user"); |
| Preconditions.checkArgument((resourceOveruseFlag > 0), |
| "Must provide valid resource overuse flag"); |
| Preconditions.checkArgument((maxStatsPeriod > 0), |
| "Must provide valid maximum stats period"); |
| // When more resource types are added, make this as optional. |
| Preconditions.checkArgument((resourceOveruseFlag & FLAG_RESOURCE_OVERUSE_IO) != 0, |
| "Must provide resource I/O overuse flag"); |
| String genericPackageName = |
| mPackageInfoHandler.getNameForUserPackage(packageName, userHandle.getIdentifier()); |
| if (genericPackageName == null) { |
| throw new IllegalArgumentException("Package '" + packageName + "' not found"); |
| } |
| ResourceOveruseStats.Builder statsBuilder = |
| new ResourceOveruseStats.Builder(genericPackageName, userHandle); |
| statsBuilder.setIoOveruseStats(getIoOveruseStatsForPeriod(userHandle.getIdentifier(), |
| genericPackageName, maxStatsPeriod)); |
| if (DEBUG) { |
| Slogf.d(TAG, "Returning resource overuse stats for user %d, package '%s', " |
| + "generic package '%s'", userHandle.getIdentifier(), packageName, |
| genericPackageName); |
| } |
| return statsBuilder.build(); |
| } |
| |
| /** Adds the resource overuse listener. */ |
| public void addResourceOveruseListener( |
| @CarWatchdogManager.ResourceOveruseFlag int resourceOveruseFlag, |
| @NonNull IResourceOveruseListener listener) { |
| Objects.requireNonNull(listener, "Listener must be non-null"); |
| Preconditions.checkArgument((resourceOveruseFlag > 0), |
| "Must provide valid resource overuse flag"); |
| synchronized (mLock) { |
| addResourceOveruseListenerLocked(resourceOveruseFlag, listener, |
| mOveruseListenerInfosByUid); |
| } |
| } |
| |
| /** Removes the previously added resource overuse listener. */ |
| public void removeResourceOveruseListener(@NonNull IResourceOveruseListener listener) { |
| Objects.requireNonNull(listener, "Listener must be non-null"); |
| synchronized (mLock) { |
| removeResourceOveruseListenerLocked(listener, mOveruseListenerInfosByUid); |
| } |
| } |
| |
| /** Adds the resource overuse system listener. */ |
| public void addResourceOveruseListenerForSystem( |
| @CarWatchdogManager.ResourceOveruseFlag int resourceOveruseFlag, |
| @NonNull IResourceOveruseListener listener) { |
| Objects.requireNonNull(listener, "Listener must be non-null"); |
| Preconditions.checkArgument((resourceOveruseFlag > 0), |
| "Must provide valid resource overuse flag"); |
| synchronized (mLock) { |
| addResourceOveruseListenerLocked(resourceOveruseFlag, listener, |
| mOveruseSystemListenerInfosByUid); |
| } |
| } |
| |
| /** Removes the previously added resource overuse system listener. */ |
| public void removeResourceOveruseListenerForSystem(@NonNull IResourceOveruseListener listener) { |
| Objects.requireNonNull(listener, "Listener must be non-null"); |
| synchronized (mLock) { |
| removeResourceOveruseListenerLocked(listener, mOveruseSystemListenerInfosByUid); |
| } |
| } |
| |
| /** Sets whether or not a package is killable on resource overuse. */ |
| public void setKillablePackageAsUser(String packageName, UserHandle userHandle, |
| boolean isKillable) { |
| Objects.requireNonNull(packageName, "Package name must be non-null"); |
| Objects.requireNonNull(userHandle, "User handle must be non-null"); |
| |
| if (userHandle.equals(UserHandle.ALL)) { |
| setPackageKillableStateForAllUsers(packageName, isKillable); |
| return; |
| } |
| int userId = userHandle.getIdentifier(); |
| String genericPackageName = mPackageInfoHandler.getNameForUserPackage(packageName, userId); |
| if (genericPackageName == null) { |
| throw new IllegalArgumentException("Package '" + packageName + "' not found"); |
| } |
| String key = getUserPackageUniqueId(userId, genericPackageName); |
| synchronized (mLock) { |
| /* |
| * When the queried package is not cached in {@link mUsageByUserPackage}, the set API |
| * will update the killable state even when the package should never be killed. |
| * But the get API will return the correct killable state. This behavior is tolerable |
| * because in production the set API should be called only after the get API. |
| * For instance, when this case happens by mistake and the package overuses resource |
| * between the set and the get API calls, the daemon will provide correct killable |
| * state when pushing the latest stats. Ergo, the invalid killable state doesn't have |
| * any effect. |
| */ |
| PackageResourceUsage usage = mUsageByUserPackage.get(key); |
| if (usage == null) { |
| usage = new PackageResourceUsage(userId, genericPackageName); |
| } |
| if (!usage.verifyAndSetKillableStateLocked(isKillable)) { |
| Slogf.e(TAG, "User %d cannot set killable state for package '%s'", |
| userHandle.getIdentifier(), genericPackageName); |
| throw new IllegalArgumentException("Package killable state is not updatable"); |
| } |
| mUsageByUserPackage.put(key, usage); |
| } |
| if (DEBUG) { |
| Slogf.d(TAG, "Successfully set killable package state for user %d", userId); |
| } |
| } |
| |
| private void setPackageKillableStateForAllUsers(String packageName, boolean isKillable) { |
| int[] userIds = getAliveUserIds(); |
| String genericPackageName = null; |
| synchronized (mLock) { |
| for (int i = 0; i < userIds.length; ++i) { |
| int userId = userIds[i]; |
| String name = mPackageInfoHandler.getNameForUserPackage(packageName, userId); |
| if (name == null) { |
| continue; |
| } |
| genericPackageName = name; |
| String key = getUserPackageUniqueId(userId, genericPackageName); |
| PackageResourceUsage usage = mUsageByUserPackage.get(key); |
| if (usage == null) { |
| continue; |
| } |
| if (!usage.verifyAndSetKillableStateLocked(isKillable)) { |
| Slogf.e(TAG, "Cannot set killable state for package '%s'", packageName); |
| throw new IllegalArgumentException( |
| "Package killable state is not updatable"); |
| } |
| } |
| if (genericPackageName != null) { |
| if (!isKillable) { |
| mDefaultNotKillableGenericPackages.add(genericPackageName); |
| } else { |
| mDefaultNotKillableGenericPackages.remove(genericPackageName); |
| } |
| } |
| } |
| if (DEBUG) { |
| Slogf.d(TAG, "Successfully set killable package state for all users"); |
| } |
| } |
| |
| /** Returns the list of package killable states on resource overuse for the user. */ |
| @NonNull |
| public List<PackageKillableState> getPackageKillableStatesAsUser(UserHandle userHandle) { |
| Objects.requireNonNull(userHandle, "User handle must be non-null"); |
| PackageManager pm = mContext.getPackageManager(); |
| if (!userHandle.equals(UserHandle.ALL)) { |
| if (DEBUG) { |
| Slogf.d(TAG, "Returning all package killable states for user %d", |
| userHandle.getIdentifier()); |
| } |
| return getPackageKillableStatesForUserId(userHandle.getIdentifier(), pm); |
| } |
| List<PackageKillableState> packageKillableStates = new ArrayList<>(); |
| int[] userIds = getAliveUserIds(); |
| for (int i = 0; i < userIds.length; ++i) { |
| packageKillableStates.addAll( |
| getPackageKillableStatesForUserId(userIds[i], pm)); |
| } |
| if (DEBUG) { |
| Slogf.d(TAG, "Returning all package killable states for all users"); |
| } |
| return packageKillableStates; |
| } |
| |
| private List<PackageKillableState> getPackageKillableStatesForUserId(int userId, |
| PackageManager pm) { |
| List<PackageInfo> packageInfos = pm.getInstalledPackagesAsUser(/* flags= */ 0, userId); |
| List<PackageKillableState> states = new ArrayList<>(); |
| synchronized (mLock) { |
| ArrayMap<String, List<ApplicationInfo>> applicationInfosBySharedPackage = |
| new ArrayMap<>(); |
| for (int i = 0; i < packageInfos.size(); ++i) { |
| PackageInfo packageInfo = packageInfos.get(i); |
| String genericPackageName = mPackageInfoHandler.getNameForPackage(packageInfo); |
| if (packageInfo.sharedUserId == null) { |
| int componentType = mPackageInfoHandler.getComponentType( |
| packageInfo.applicationInfo); |
| int killableState = getPackageKillableStateForUserPackageLocked( |
| userId, genericPackageName, componentType, |
| isSafeToKillLocked(genericPackageName, componentType, null)); |
| states.add(new PackageKillableState(packageInfo.packageName, userId, |
| killableState)); |
| continue; |
| } |
| List<ApplicationInfo> applicationInfos = |
| applicationInfosBySharedPackage.get(genericPackageName); |
| if (applicationInfos == null) { |
| applicationInfos = new ArrayList<>(); |
| } |
| applicationInfos.add(packageInfo.applicationInfo); |
| applicationInfosBySharedPackage.put(genericPackageName, applicationInfos); |
| } |
| for (Map.Entry<String, List<ApplicationInfo>> entry : |
| applicationInfosBySharedPackage.entrySet()) { |
| String genericPackageName = entry.getKey(); |
| List<ApplicationInfo> applicationInfos = entry.getValue(); |
| int componentType = mPackageInfoHandler.getSharedComponentType( |
| applicationInfos, genericPackageName); |
| List<String> packageNames = new ArrayList<>(applicationInfos.size()); |
| for (int i = 0; i < applicationInfos.size(); ++i) { |
| packageNames.add(applicationInfos.get(i).packageName); |
| } |
| int killableState = getPackageKillableStateForUserPackageLocked( |
| userId, genericPackageName, componentType, |
| isSafeToKillLocked(genericPackageName, componentType, packageNames)); |
| for (int i = 0; i < applicationInfos.size(); ++i) { |
| states.add(new PackageKillableState( |
| applicationInfos.get(i).packageName, userId, killableState)); |
| } |
| } |
| } |
| if (DEBUG) { |
| Slogf.d(TAG, "Returning the package killable states for user packages"); |
| } |
| return states; |
| } |
| |
| /** Sets the given resource overuse configurations. */ |
| @CarWatchdogManager.ReturnCode |
| public int setResourceOveruseConfigurations( |
| List<ResourceOveruseConfiguration> configurations, |
| @CarWatchdogManager.ResourceOveruseFlag int resourceOveruseFlag) |
| throws RemoteException { |
| Objects.requireNonNull(configurations, "Configurations must be non-null"); |
| Preconditions.checkArgument((configurations.size() > 0), |
| "Must provide at least one configuration"); |
| Preconditions.checkArgument((resourceOveruseFlag > 0), |
| "Must provide valid resource overuse flag"); |
| checkResourceOveruseConfigs(configurations, resourceOveruseFlag); |
| List<android.automotive.watchdog.internal.ResourceOveruseConfiguration> internalConfigs = |
| new ArrayList<>(); |
| for (int i = 0; i < configurations.size(); ++i) { |
| internalConfigs.add(toInternalResourceOveruseConfiguration(configurations.get(i), |
| resourceOveruseFlag)); |
| } |
| synchronized (mLock) { |
| if (!mIsConnectedToDaemon) { |
| setPendingSetResourceOveruseConfigurationsRequestLocked(internalConfigs); |
| return CarWatchdogManager.RETURN_CODE_SUCCESS; |
| } |
| /* Verify no pending request in progress. */ |
| setPendingSetResourceOveruseConfigurationsRequestLocked(null); |
| } |
| return setResourceOveruseConfigurationsInternal(internalConfigs, |
| /* isPendingRequest= */ false); |
| } |
| |
| /** Returns the available resource overuse configurations. */ |
| @NonNull |
| public List<ResourceOveruseConfiguration> getResourceOveruseConfigurations( |
| @CarWatchdogManager.ResourceOveruseFlag int resourceOveruseFlag) { |
| Preconditions.checkArgument((resourceOveruseFlag > 0), |
| "Must provide valid resource overuse flag"); |
| if (!isConnectedToDaemon()) { |
| throw new IllegalStateException("Car watchdog daemon is not connected"); |
| } |
| synchronized (mLock) { |
| /* Verify no pending request in progress. */ |
| setPendingSetResourceOveruseConfigurationsRequestLocked(null); |
| } |
| List<android.automotive.watchdog.internal.ResourceOveruseConfiguration> internalConfigs = |
| new ArrayList<>(); |
| try { |
| internalConfigs = mCarWatchdogDaemonHelper.getResourceOveruseConfigurations(); |
| } catch (RemoteException | RuntimeException e) { |
| Slogf.w(TAG, e, "Failed to fetch resource overuse configurations"); |
| throw new IllegalStateException(e); |
| } |
| List<ResourceOveruseConfiguration> configs = new ArrayList<>(); |
| for (int i = 0; i < internalConfigs.size(); ++i) { |
| configs.add( |
| toResourceOveruseConfiguration(internalConfigs.get(i), resourceOveruseFlag)); |
| } |
| if (DEBUG) { |
| Slogf.d(TAG, "Returning the resource overuse configuration"); |
| } |
| return configs; |
| } |
| |
| /** Processes the latest I/O overuse stats */ |
| public void latestIoOveruseStats(List<PackageIoOveruseStats> packageIoOveruseStats) { |
| SparseBooleanArray recurringIoOverusesByUid = new SparseBooleanArray(); |
| int[] uids = new int[packageIoOveruseStats.size()]; |
| for (int i = 0; i < packageIoOveruseStats.size(); ++i) { |
| uids[i] = packageIoOveruseStats.get(i).uid; |
| } |
| SparseArray<String> genericPackageNamesByUid = mPackageInfoHandler.getNamesForUids(uids); |
| synchronized (mLock) { |
| checkAndHandleDateChangeLocked(); |
| for (int i = 0; i < packageIoOveruseStats.size(); ++i) { |
| PackageIoOveruseStats stats = packageIoOveruseStats.get(i); |
| String genericPackageName = genericPackageNamesByUid.get(stats.uid); |
| if (genericPackageName == null) { |
| continue; |
| } |
| int userId = UserHandle.getUserId(stats.uid); |
| PackageResourceUsage usage = cacheAndFetchUsageLocked(userId, genericPackageName, |
| stats.ioOveruseStats); |
| if (stats.shouldNotify) { |
| /* |
| * Packages that exceed the warn threshold percentage should be notified as well |
| * and only the daemon is aware of such packages. Thus the flag is used to |
| * indicate which packages should be notified. |
| */ |
| ResourceOveruseStats resourceOveruseStats = |
| usage.getResourceOveruseStatsBuilder().setIoOveruseStats( |
| usage.getIoOveruseStatsLocked()).build(); |
| notifyResourceOveruseStatsLocked(stats.uid, resourceOveruseStats); |
| } |
| |
| if (!usage.ioUsage.exceedsThreshold()) { |
| continue; |
| } |
| PackageResourceOveruseAction overuseAction = new PackageResourceOveruseAction(); |
| overuseAction.packageIdentifier = new PackageIdentifier(); |
| overuseAction.packageIdentifier.name = genericPackageName; |
| overuseAction.packageIdentifier.uid = stats.uid; |
| overuseAction.resourceTypes = new int[]{ ResourceType.IO }; |
| overuseAction.resourceOveruseActionType = NOT_KILLED; |
| /* |
| * No action required on I/O overuse on one of the following cases: |
| * #1 The package is not safe to kill as it is critical for system stability. |
| * #2 The package has no recurring overuse behavior and the user opted to not |
| * kill the package so honor the user's decision. |
| */ |
| int killableState = usage.getKillableStateLocked(); |
| if (killableState == KILLABLE_STATE_NEVER) { |
| mOveruseActionsByUserPackage.add(overuseAction); |
| continue; |
| } |
| boolean hasRecurringOveruse = isRecurringOveruseLocked(usage); |
| if (!hasRecurringOveruse && killableState == KILLABLE_STATE_NO) { |
| overuseAction.resourceOveruseActionType = NOT_KILLED_USER_OPTED; |
| mOveruseActionsByUserPackage.add(overuseAction); |
| continue; |
| } |
| recurringIoOverusesByUid.put(stats.uid, hasRecurringOveruse); |
| } |
| if (!mOveruseActionsByUserPackage.isEmpty()) { |
| mMainHandler.post(this::notifyActionsTakenOnOveruse); |
| } |
| if (recurringIoOverusesByUid.size() > 0) { |
| mMainHandler.postDelayed( |
| () -> handleIoOveruseKilling( |
| recurringIoOverusesByUid, genericPackageNamesByUid), |
| mResourceOveruseKillingDelayMills); |
| } |
| } |
| if (DEBUG) { |
| Slogf.d(TAG, "Processed latest I/O overuse stats"); |
| } |
| } |
| |
| /** Notify daemon about the actions take on resource overuse */ |
| public void notifyActionsTakenOnOveruse() { |
| List<PackageResourceOveruseAction> actions; |
| synchronized (mLock) { |
| if (mOveruseActionsByUserPackage.isEmpty()) { |
| return; |
| } |
| actions = new ArrayList<>(mOveruseActionsByUserPackage); |
| mOveruseActionsByUserPackage.clear(); |
| } |
| try { |
| mCarWatchdogDaemonHelper.actionTakenOnResourceOveruse(actions); |
| } catch (RemoteException | RuntimeException e) { |
| Slogf.w(TAG, e, "Failed to notify car watchdog daemon of actions taken on resource " |
| + "overuse"); |
| } |
| if (DEBUG) { |
| Slogf.d(TAG, "Notified car watchdog daemon of actions taken on resource overuse"); |
| } |
| } |
| |
| /** Handle packages that exceed resource overuse thresholds */ |
| private void handleIoOveruseKilling(SparseBooleanArray recurringIoOverusesByUid, |
| SparseArray<String> genericPackageNamesByUid) { |
| IPackageManager packageManager = ActivityThread.getPackageManager(); |
| synchronized (mLock) { |
| for (int i = 0; i < recurringIoOverusesByUid.size(); i++) { |
| int uid = recurringIoOverusesByUid.keyAt(i); |
| boolean hasRecurringOveruse = recurringIoOverusesByUid.valueAt(i); |
| String genericPackageName = genericPackageNamesByUid.get(uid); |
| int userId = UserHandle.getUserId(uid); |
| |
| PackageResourceOveruseAction overuseAction = new PackageResourceOveruseAction(); |
| overuseAction.packageIdentifier = new PackageIdentifier(); |
| overuseAction.packageIdentifier.name = genericPackageName; |
| overuseAction.packageIdentifier.uid = uid; |
| overuseAction.resourceTypes = new int[]{ ResourceType.IO }; |
| overuseAction.resourceOveruseActionType = NOT_KILLED; |
| |
| String key = getUserPackageUniqueId(userId, genericPackageName); |
| PackageResourceUsage usage = mUsageByUserPackage.get(key); |
| if (usage == null) { |
| /* This case shouldn't happen but placed here as a fail safe. */ |
| mOveruseActionsByUserPackage.add(overuseAction); |
| continue; |
| } |
| List<String> packages = Collections.singletonList(genericPackageName); |
| if (usage.isSharedPackage()) { |
| packages = mPackageInfoHandler.getPackagesForUid(uid, genericPackageName); |
| } |
| for (int pkgIdx = 0; pkgIdx < packages.size(); pkgIdx++) { |
| String packageName = packages.get(pkgIdx); |
| try { |
| if (!hasRecurringOveruse) { |
| int currentEnabledState = packageManager.getApplicationEnabledSetting( |
| packageName, userId); |
| if (currentEnabledState == COMPONENT_ENABLED_STATE_DISABLED |
| || currentEnabledState == COMPONENT_ENABLED_STATE_DISABLED_USER |
| || currentEnabledState |
| == COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { |
| continue; |
| } |
| } |
| packageManager.setApplicationEnabledSetting(packageName, |
| COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED, /* flags= */ 0, userId, |
| mContext.getPackageName()); |
| overuseAction.resourceOveruseActionType = hasRecurringOveruse |
| ? KILLED_RECURRING_OVERUSE : KILLED; |
| } catch (RemoteException e) { |
| Slogf.e(TAG, "Failed to disable application for user %d, package '%s'", |
| userId, packageName); |
| } |
| } |
| if (overuseAction.resourceOveruseActionType == KILLED |
| || overuseAction.resourceOveruseActionType == KILLED_RECURRING_OVERUSE) { |
| usage.ioUsage.killed(); |
| } |
| mOveruseActionsByUserPackage.add(overuseAction); |
| } |
| if (!mOveruseActionsByUserPackage.isEmpty()) { |
| notifyActionsTakenOnOveruse(); |
| } |
| } |
| } |
| |
| /** Resets the resource overuse settings and stats for the given generic package names. */ |
| public void resetResourceOveruseStats(Set<String> genericPackageNames) { |
| synchronized (mLock) { |
| for (int i = 0; i < mUsageByUserPackage.size(); ++i) { |
| PackageResourceUsage usage = mUsageByUserPackage.valueAt(i); |
| if (genericPackageNames.contains(usage.genericPackageName)) { |
| usage.resetStatsLocked(); |
| usage.verifyAndSetKillableStateLocked(/* isKillable= */ true); |
| mWatchdogStorage.deleteUserPackage(usage.userId, usage.genericPackageName); |
| } |
| } |
| } |
| } |
| |
| /** Deletes all data for specific user. */ |
| public void deleteUser(@UserIdInt int userId) { |
| synchronized (mLock) { |
| for (int i = mUsageByUserPackage.size() - 1; i >= 0; --i) { |
| if (userId == mUsageByUserPackage.valueAt(i).userId) { |
| mUsageByUserPackage.removeAt(i); |
| } |
| } |
| mWatchdogStorage.syncUsers(getAliveUserIds()); |
| } |
| if (DEBUG) { |
| Slogf.d(TAG, "Resource usage for user id: %d was deleted.", userId); |
| } |
| } |
| |
| /** Sets the time source. */ |
| public void setTimeSource(TimeSourceInterface timeSource) { |
| synchronized (mLock) { |
| mTimeSource = timeSource; |
| } |
| } |
| |
| /** Sets the delay to kill a package after the package is notified of resource overuse. */ |
| public void setResourceOveruseKillingDelay(long millis) { |
| synchronized (mLock) { |
| mResourceOveruseKillingDelayMills = millis; |
| } |
| } |
| |
| /** Fetches and syncs the resource overuse configurations from watchdog daemon. */ |
| private void fetchAndSyncResourceOveruseConfigurations() { |
| synchronized (mLock) { |
| List<android.automotive.watchdog.internal.ResourceOveruseConfiguration> internalConfigs; |
| try { |
| internalConfigs = mCarWatchdogDaemonHelper.getResourceOveruseConfigurations(); |
| } catch (RemoteException | RuntimeException e) { |
| Slogf.w(TAG, e, "Failed to fetch resource overuse configurations"); |
| return; |
| } |
| if (internalConfigs.isEmpty()) { |
| Slogf.e(TAG, "Fetched resource overuse configurations are empty"); |
| return; |
| } |
| mSafeToKillSystemPackages.clear(); |
| mSafeToKillVendorPackages.clear(); |
| for (int i = 0; i < internalConfigs.size(); i++) { |
| switch (internalConfigs.get(i).componentType) { |
| case ComponentType.SYSTEM: |
| mSafeToKillSystemPackages.addAll(internalConfigs.get(i).safeToKillPackages); |
| break; |
| case ComponentType.VENDOR: |
| mSafeToKillVendorPackages.addAll(internalConfigs.get(i).safeToKillPackages); |
| mPackageInfoHandler.setVendorPackagePrefixes( |
| internalConfigs.get(i).vendorPackagePrefixes); |
| break; |
| default: |
| // All third-party apps are killable. |
| break; |
| } |
| } |
| if (DEBUG) { |
| Slogf.d(TAG, "Fetched and synced resource overuse configs."); |
| } |
| } |
| } |
| |
| private void readFromDatabase() { |
| mWatchdogStorage.syncUsers(getAliveUserIds()); |
| List<WatchdogStorage.UserPackageSettingsEntry> settingsEntries = |
| mWatchdogStorage.getUserPackageSettings(); |
| Slogf.i(TAG, "Read %d user package settings from database", settingsEntries.size()); |
| List<WatchdogStorage.IoUsageStatsEntry> ioStatsEntries = |
| mWatchdogStorage.getTodayIoUsageStats(); |
| Slogf.i(TAG, "Read %d I/O usage stats from database", ioStatsEntries.size()); |
| synchronized (mLock) { |
| for (int i = 0; i < settingsEntries.size(); ++i) { |
| WatchdogStorage.UserPackageSettingsEntry entry = settingsEntries.get(i); |
| if (entry.userId == UserHandle.USER_ALL) { |
| if (entry.killableState != KILLABLE_STATE_YES) { |
| mDefaultNotKillableGenericPackages.add(entry.packageName); |
| } |
| continue; |
| } |
| String key = getUserPackageUniqueId(entry.userId, entry.packageName); |
| PackageResourceUsage usage = mUsageByUserPackage.get(key); |
| if (usage == null) { |
| usage = new PackageResourceUsage(entry.userId, entry.packageName); |
| } |
| usage.setKillableStateLocked(entry.killableState); |
| mUsageByUserPackage.put(key, usage); |
| } |
| ZonedDateTime curReportDate = |
| mTimeSource.now().atZone(ZONE_OFFSET).truncatedTo(STATS_TEMPORAL_UNIT); |
| for (int i = 0; i < ioStatsEntries.size(); ++i) { |
| WatchdogStorage.IoUsageStatsEntry entry = ioStatsEntries.get(i); |
| String key = getUserPackageUniqueId(entry.userId, entry.packageName); |
| PackageResourceUsage usage = mUsageByUserPackage.get(key); |
| if (usage == null) { |
| usage = new PackageResourceUsage(entry.userId, entry.packageName); |
| } |
| /* Overwrite in memory cache as the stats will be merged on the daemon side and |
| * pushed on the next latestIoOveruseStats call. This is tolerable because the next |
| * push should happen soon. |
| */ |
| usage.ioUsage.overwrite(entry.ioUsage); |
| mUsageByUserPackage.put(key, usage); |
| } |
| if (!ioStatsEntries.isEmpty()) { |
| /* When mLatestStatsReportDate is null, the latest stats push from daemon hasn't |
| * happened yet. Thus the cached stats contains only the stats read from database. |
| */ |
| mIsWrittenToDatabase = mLatestStatsReportDate == null; |
| mLatestStatsReportDate = curReportDate; |
| } |
| } |
| } |
| |
| /** Writes user package settings and stats to database. */ |
| public void writeToDatabase() { |
| synchronized (mLock) { |
| if (mIsWrittenToDatabase) { |
| return; |
| } |
| List<WatchdogStorage.UserPackageSettingsEntry> entries = |
| new ArrayList<>(mUsageByUserPackage.size()); |
| for (int i = 0; i < mUsageByUserPackage.size(); ++i) { |
| PackageResourceUsage usage = mUsageByUserPackage.valueAt(i); |
| entries.add(new WatchdogStorage.UserPackageSettingsEntry( |
| usage.userId, usage.genericPackageName, usage.getKillableStateLocked())); |
| } |
| for (String packageName : mDefaultNotKillableGenericPackages) { |
| entries.add(new WatchdogStorage.UserPackageSettingsEntry( |
| UserHandle.USER_ALL, packageName, KILLABLE_STATE_NO)); |
| } |
| if (!mWatchdogStorage.saveUserPackageSettings(entries)) { |
| Slogf.e(TAG, "Failed to write user package settings to database"); |
| } else { |
| Slogf.i(TAG, "Successfully saved %d user package settings to database", |
| entries.size()); |
| } |
| writeStatsLocked(); |
| mIsWrittenToDatabase = true; |
| } |
| } |
| |
| @GuardedBy("mLock") |
| private void writeStatsLocked() { |
| List<WatchdogStorage.IoUsageStatsEntry> entries = |
| new ArrayList<>(mUsageByUserPackage.size()); |
| for (int i = 0; i < mUsageByUserPackage.size(); ++i) { |
| PackageResourceUsage usage = mUsageByUserPackage.valueAt(i); |
| if (!usage.ioUsage.hasUsage()) { |
| continue; |
| } |
| entries.add(new WatchdogStorage.IoUsageStatsEntry( |
| usage.userId, usage.genericPackageName, usage.ioUsage)); |
| } |
| if (!mWatchdogStorage.saveIoUsageStats(entries)) { |
| Slogf.e(TAG, "Failed to write %d I/O overuse stats to database", entries.size()); |
| } else { |
| Slogf.i(TAG, "Successfully saved %d I/O overuse stats to database", entries.size()); |
| } |
| } |
| |
| @GuardedBy("mLock") |
| private int getPackageKillableStateForUserPackageLocked( |
| int userId, String genericPackageName, int componentType, boolean isSafeToKill) { |
| String key = getUserPackageUniqueId(userId, genericPackageName); |
| PackageResourceUsage usage = mUsageByUserPackage.get(key); |
| if (usage == null) { |
| usage = new PackageResourceUsage(userId, genericPackageName); |
| } |
| int killableState = usage.syncAndFetchKillableStateLocked(componentType, isSafeToKill); |
| mUsageByUserPackage.put(key, usage); |
| return killableState; |
| } |
| |
| @GuardedBy("mLock") |
| private void notifyResourceOveruseStatsLocked(int uid, |
| ResourceOveruseStats resourceOveruseStats) { |
| String genericPackageName = resourceOveruseStats.getPackageName(); |
| ArrayList<ResourceOveruseListenerInfo> listenerInfos = mOveruseListenerInfosByUid.get(uid); |
| if (listenerInfos != null) { |
| for (int i = 0; i < listenerInfos.size(); ++i) { |
| listenerInfos.get(i).notifyListener( |
| FLAG_RESOURCE_OVERUSE_IO, uid, genericPackageName, resourceOveruseStats); |
| } |
| } |
| for (int i = 0; i < mOveruseSystemListenerInfosByUid.size(); ++i) { |
| ArrayList<ResourceOveruseListenerInfo> systemListenerInfos = |
| mOveruseSystemListenerInfosByUid.valueAt(i); |
| for (int j = 0; j < systemListenerInfos.size(); ++j) { |
| systemListenerInfos.get(j).notifyListener( |
| FLAG_RESOURCE_OVERUSE_IO, uid, genericPackageName, resourceOveruseStats); |
| } |
| } |
| if (DEBUG) { |
| Slogf.d(TAG, "Notified resource overuse stats to listening applications"); |
| } |
| } |
| |
| @GuardedBy("mLock") |
| private void checkAndHandleDateChangeLocked() { |
| ZonedDateTime currentDate = mTimeSource.now().atZone(ZoneOffset.UTC) |
| .truncatedTo(STATS_TEMPORAL_UNIT); |
| if (currentDate.equals(mLatestStatsReportDate)) { |
| return; |
| } |
| /* After the first database read or on the first stats sync from the daemon, whichever |
| * happens first, the cached stats would either be empty or initialized from the database. |
| * In either case, don't write to database. |
| */ |
| if (mLatestStatsReportDate != null && !mIsWrittenToDatabase) { |
| writeStatsLocked(); |
| } |
| for (int i = 0; i < mUsageByUserPackage.size(); ++i) { |
| mUsageByUserPackage.valueAt(i).resetStatsLocked(); |
| } |
| mLatestStatsReportDate = currentDate; |
| if (DEBUG) { |
| Slogf.d(TAG, "Handled date change successfully"); |
| } |
| } |
| |
| @GuardedBy("mLock") |
| private PackageResourceUsage cacheAndFetchUsageLocked( |
| @UserIdInt int userId, String genericPackageName, |
| android.automotive.watchdog.IoOveruseStats internalStats) { |
| String key = getUserPackageUniqueId(userId, genericPackageName); |
| PackageResourceUsage usage = mUsageByUserPackage.get(key); |
| if (usage == null) { |
| usage = new PackageResourceUsage(userId, genericPackageName); |
| } |
| usage.updateLocked(internalStats); |
| mUsageByUserPackage.put(key, usage); |
| return usage; |
| } |
| |
| @GuardedBy("mLock") |
| private boolean isRecurringOveruseLocked(PackageResourceUsage ioUsage) { |
| /* |
| * TODO(b/192294393): Look up I/O overuse history and determine whether or not the package |
| * has recurring I/O overuse behavior. |
| */ |
| return false; |
| } |
| |
| private IoOveruseStats getIoOveruseStatsForPeriod(int userId, String genericPackageName, |
| @CarWatchdogManager.StatsPeriod int maxStatsPeriod) { |
| synchronized (mLock) { |
| String key = getUserPackageUniqueId(userId, genericPackageName); |
| PackageResourceUsage usage = mUsageByUserPackage.get(key); |
| if (usage == null) { |
| return null; |
| } |
| return getIoOveruseStatsLocked(usage, /* minimumBytesWritten= */ 0, maxStatsPeriod); |
| } |
| } |
| |
| @GuardedBy("mLock") |
| private IoOveruseStats getIoOveruseStatsLocked(PackageResourceUsage usage, |
| long minimumBytesWritten, @CarWatchdogManager.StatsPeriod int maxStatsPeriod) { |
| if (!usage.ioUsage.hasUsage()) { |
| /* Return I/O overuse stats only when the package has usage for the current day. |
| * Without the current day usage, the returned stats will contain zero remaining |
| * bytes, which is incorrect. |
| */ |
| return null; |
| } |
| IoOveruseStats currentStats = usage.getIoOveruseStatsLocked(); |
| long totalBytesWritten = currentStats.getTotalBytesWritten(); |
| int numDays = toNumDays(maxStatsPeriod); |
| IoOveruseStats historyStats = null; |
| if (numDays > 0) { |
| historyStats = mWatchdogStorage.getHistoricalIoOveruseStats( |
| usage.userId, usage.genericPackageName, numDays - 1); |
| totalBytesWritten += historyStats != null ? historyStats.getTotalBytesWritten() : 0; |
| } |
| if (totalBytesWritten < minimumBytesWritten) { |
| return null; |
| } |
| if (historyStats == null) { |
| return currentStats; |
| } |
| IoOveruseStats.Builder statsBuilder = new IoOveruseStats.Builder( |
| historyStats.getStartTime(), |
| historyStats.getDurationInSeconds() + currentStats.getDurationInSeconds()); |
| statsBuilder.setTotalTimesKilled( |
| historyStats.getTotalTimesKilled() + currentStats.getTotalTimesKilled()); |
| statsBuilder.setTotalOveruses( |
| historyStats.getTotalOveruses() + currentStats.getTotalOveruses()); |
| statsBuilder.setTotalBytesWritten( |
| historyStats.getTotalBytesWritten() + currentStats.getTotalBytesWritten()); |
| statsBuilder.setKillableOnOveruse(currentStats.isKillableOnOveruse()); |
| statsBuilder.setRemainingWriteBytes(currentStats.getRemainingWriteBytes()); |
| return statsBuilder.build(); |
| } |
| |
| @GuardedBy("mLock") |
| private void addResourceOveruseListenerLocked( |
| @CarWatchdogManager.ResourceOveruseFlag int resourceOveruseFlag, |
| @NonNull IResourceOveruseListener listener, |
| SparseArray<ArrayList<ResourceOveruseListenerInfo>> listenerInfosByUid) { |
| int callingPid = Binder.getCallingPid(); |
| int callingUid = Binder.getCallingUid(); |
| boolean isListenerForSystem = listenerInfosByUid == mOveruseSystemListenerInfosByUid; |
| String listenerType = isListenerForSystem ? "resource overuse listener for system" : |
| "resource overuse listener"; |
| |
| IBinder binder = listener.asBinder(); |
| ArrayList<ResourceOveruseListenerInfo> listenerInfos = listenerInfosByUid.get(callingUid); |
| if (listenerInfos == null) { |
| listenerInfos = new ArrayList<>(); |
| listenerInfosByUid.put(callingUid, listenerInfos); |
| } |
| for (int i = 0; i < listenerInfos.size(); ++i) { |
| if (listenerInfos.get(i).listener.asBinder() == binder) { |
| throw new IllegalStateException( |
| "Cannot add " + listenerType + " as it is already added"); |
| } |
| } |
| |
| ResourceOveruseListenerInfo listenerInfo = new ResourceOveruseListenerInfo(listener, |
| resourceOveruseFlag, callingPid, callingUid, isListenerForSystem); |
| try { |
| listenerInfo.linkToDeath(); |
| } catch (RemoteException e) { |
| Slogf.w(TAG, "Cannot add %s: linkToDeath to listener failed", listenerType); |
| return; |
| } |
| listenerInfos.add(listenerInfo); |
| if (DEBUG) { |
| Slogf.d(TAG, "The %s (pid: %d, uid: %d) is added", listenerType, |
| callingPid, callingUid); |
| } |
| } |
| |
| @GuardedBy("mLock") |
| private void removeResourceOveruseListenerLocked(@NonNull IResourceOveruseListener listener, |
| SparseArray<ArrayList<ResourceOveruseListenerInfo>> listenerInfosByUid) { |
| int callingUid = Binder.getCallingUid(); |
| String listenerType = listenerInfosByUid == mOveruseSystemListenerInfosByUid |
| ? "resource overuse system listener" : "resource overuse listener"; |
| ArrayList<ResourceOveruseListenerInfo> listenerInfos = listenerInfosByUid.get(callingUid); |
| if (listenerInfos == null) { |
| Slogf.w(TAG, "Cannot remove the %s: it has not been registered before", listenerType); |
| return; |
| } |
| IBinder binder = listener.asBinder(); |
| ResourceOveruseListenerInfo cachedListenerInfo = null; |
| for (int i = 0; i < listenerInfos.size(); ++i) { |
| if (listenerInfos.get(i).listener.asBinder() == binder) { |
| cachedListenerInfo = listenerInfos.get(i); |
| break; |
| } |
| } |
| if (cachedListenerInfo == null) { |
| Slogf.w(TAG, "Cannot remove the %s: it has not been registered before", listenerType); |
| return; |
| } |
| cachedListenerInfo.unlinkToDeath(); |
| listenerInfos.remove(cachedListenerInfo); |
| if (listenerInfos.isEmpty()) { |
| listenerInfosByUid.remove(callingUid); |
| } |
| if (DEBUG) { |
| Slogf.d(TAG, "The %s (pid: %d, uid: %d) is removed", listenerType, |
| cachedListenerInfo.pid, cachedListenerInfo.uid); |
| } |
| } |
| |
| @GuardedBy("mLock") |
| private void setPendingSetResourceOveruseConfigurationsRequestLocked( |
| List<android.automotive.watchdog.internal.ResourceOveruseConfiguration> configs) { |
| if (mPendingSetResourceOveruseConfigurationsRequest != null) { |
| if (mPendingSetResourceOveruseConfigurationsRequest == configs) { |
| return; |
| } |
| throw new IllegalStateException( |
| "Pending setResourceOveruseConfigurations request in progress"); |
| } |
| mPendingSetResourceOveruseConfigurationsRequest = configs; |
| } |
| |
| private void retryPendingSetResourceOveruseConfigurations() { |
| List<android.automotive.watchdog.internal.ResourceOveruseConfiguration> configs; |
| synchronized (mLock) { |
| if (mPendingSetResourceOveruseConfigurationsRequest == null) { |
| return; |
| } |
| configs = mPendingSetResourceOveruseConfigurationsRequest; |
| } |
| try { |
| int result = setResourceOveruseConfigurationsInternal(configs, |
| /* isPendingRequest= */ true); |
| if (result != CarWatchdogManager.RETURN_CODE_SUCCESS) { |
| Slogf.e(TAG, "Failed to set pending resource overuse configurations. Return code " |
| + "%d", result); |
| } |
| } catch (Exception e) { |
| Slogf.e(TAG, e, "Exception on set pending resource overuse configurations"); |
| } |
| } |
| |
| private int setResourceOveruseConfigurationsInternal( |
| List<android.automotive.watchdog.internal.ResourceOveruseConfiguration> configs, |
| boolean isPendingRequest) throws RemoteException { |
| boolean doClearPendingRequest = isPendingRequest; |
| try { |
| mCarWatchdogDaemonHelper.updateResourceOveruseConfigurations(configs); |
| mMainHandler.post(this::fetchAndSyncResourceOveruseConfigurations); |
| } catch (RemoteException e) { |
| if (e instanceof TransactionTooLargeException) { |
| throw e; |
| } |
| Slogf.e(TAG, e, "Remote exception on set resource overuse configuration"); |
| synchronized (mLock) { |
| setPendingSetResourceOveruseConfigurationsRequestLocked(configs); |
| } |
| doClearPendingRequest = false; |
| return CarWatchdogManager.RETURN_CODE_SUCCESS; |
| } finally { |
| if (doClearPendingRequest) { |
| synchronized (mLock) { |
| mPendingSetResourceOveruseConfigurationsRequest = null; |
| } |
| } |
| } |
| if (DEBUG) { |
| Slogf.d(TAG, "Set the resource overuse configuration successfully"); |
| } |
| return CarWatchdogManager.RETURN_CODE_SUCCESS; |
| } |
| |
| private boolean isConnectedToDaemon() { |
| synchronized (mLock) { |
| long startTimeMillis = SystemClock.uptimeMillis(); |
| long sleptDurationMillis = SystemClock.uptimeMillis() - startTimeMillis; |
| while (!mIsConnectedToDaemon && sleptDurationMillis < MAX_WAIT_TIME_MILLS) { |
| try { |
| mLock.wait(MAX_WAIT_TIME_MILLS - sleptDurationMillis); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| continue; |
| } finally { |
| sleptDurationMillis = SystemClock.uptimeMillis() - startTimeMillis; |
| } |
| break; |
| } |
| return mIsConnectedToDaemon; |
| } |
| } |
| |
| @GuardedBy("mLock") |
| private boolean isSafeToKillLocked(String genericPackageName, int componentType, |
| List<String> sharedPackages) { |
| BiFunction<List<String>, Set<String>, Boolean> isSafeToKillAnyPackage = |
| (packages, safeToKillPackages) -> { |
| if (packages == null) { |
| return false; |
| } |
| for (int i = 0; i < packages.size(); i++) { |
| if (safeToKillPackages.contains(packages.get(i))) { |
| return true; |
| } |
| } |
| return false; |
| }; |
| |
| switch (componentType) { |
| case ComponentType.SYSTEM: |
| if (mSafeToKillSystemPackages.contains(genericPackageName)) { |
| return true; |
| } |
| return isSafeToKillAnyPackage.apply(sharedPackages, mSafeToKillSystemPackages); |
| case ComponentType.VENDOR: |
| if (mSafeToKillVendorPackages.contains(genericPackageName)) { |
| return true; |
| } |
| /* |
| * Packages under the vendor shared UID may contain system packages because when |
| * CarWatchdogService derives the shared component type it attributes system |
| * packages as vendor packages when there is at least one vendor package. |
| */ |
| return isSafeToKillAnyPackage.apply(sharedPackages, mSafeToKillSystemPackages) |
| || isSafeToKillAnyPackage.apply(sharedPackages, mSafeToKillVendorPackages); |
| default: |
| // Third-party apps are always killable |
| return true; |
| } |
| } |
| |
| private int[] getAliveUserIds() { |
| UserManager userManager = UserManager.get(mContext); |
| List<UserHandle> aliveUsers = userManager.getUserHandles(/* excludeDying= */ true); |
| int userSize = aliveUsers.size(); |
| int[] userIds = new int[userSize]; |
| for (int i = 0; i < userSize; ++i) { |
| userIds[i] = aliveUsers.get(i).getIdentifier(); |
| } |
| return userIds; |
| } |
| |
| private static String getUserPackageUniqueId(int userId, String genericPackageName) { |
| return String.valueOf(userId) + ":" + genericPackageName; |
| } |
| |
| @VisibleForTesting |
| static IoOveruseStats.Builder toIoOveruseStatsBuilder( |
| android.automotive.watchdog.IoOveruseStats internalStats, |
| int totalTimesKilled, boolean isKillableOnOveruses) { |
| return new IoOveruseStats.Builder(internalStats.startTime, internalStats.durationInSeconds) |
| .setTotalOveruses(internalStats.totalOveruses) |
| .setTotalTimesKilled(totalTimesKilled) |
| .setTotalBytesWritten(totalPerStateBytes(internalStats.writtenBytes)) |
| .setKillableOnOveruse(isKillableOnOveruses) |
| .setRemainingWriteBytes(toPerStateBytes(internalStats.remainingWriteBytes)); |
| } |
| |
| private static PerStateBytes toPerStateBytes( |
| android.automotive.watchdog.PerStateBytes internalPerStateBytes) { |
| return new PerStateBytes(internalPerStateBytes.foregroundBytes, |
| internalPerStateBytes.backgroundBytes, internalPerStateBytes.garageModeBytes); |
| } |
| |
| private static long totalPerStateBytes( |
| android.automotive.watchdog.PerStateBytes internalPerStateBytes) { |
| BiFunction<Long, Long, Long> sum = (l, r) -> { |
| return (Long.MAX_VALUE - l > r) ? l + r : Long.MAX_VALUE; |
| }; |
| return sum.apply(sum.apply(internalPerStateBytes.foregroundBytes, |
| internalPerStateBytes.backgroundBytes), internalPerStateBytes.garageModeBytes); |
| } |
| |
| private static long getMinimumBytesWritten( |
| @CarWatchdogManager.MinimumStatsFlag int minimumStatsIoFlag) { |
| switch (minimumStatsIoFlag) { |
| case 0: |
| return 0; |
| case CarWatchdogManager.FLAG_MINIMUM_STATS_IO_1_MB: |
| return 1024 * 1024; |
| case CarWatchdogManager.FLAG_MINIMUM_STATS_IO_100_MB: |
| return 100 * 1024 * 1024; |
| case CarWatchdogManager.FLAG_MINIMUM_STATS_IO_1_GB: |
| return 1024 * 1024 * 1024; |
| default: |
| throw new IllegalArgumentException( |
| "Must provide valid minimum stats flag for I/O resource"); |
| } |
| } |
| |
| private static android.automotive.watchdog.internal.ResourceOveruseConfiguration |
| toInternalResourceOveruseConfiguration(ResourceOveruseConfiguration config, |
| @CarWatchdogManager.ResourceOveruseFlag int resourceOveruseFlag) { |
| android.automotive.watchdog.internal.ResourceOveruseConfiguration internalConfig = |
| new android.automotive.watchdog.internal.ResourceOveruseConfiguration(); |
| internalConfig.componentType = config.getComponentType(); |
| internalConfig.safeToKillPackages = config.getSafeToKillPackages(); |
| internalConfig.vendorPackagePrefixes = config.getVendorPackagePrefixes(); |
| internalConfig.packageMetadata = new ArrayList<>(); |
| for (Map.Entry<String, String> entry : config.getPackagesToAppCategoryTypes().entrySet()) { |
| if (entry.getKey().isEmpty()) { |
| continue; |
| } |
| PackageMetadata metadata = new PackageMetadata(); |
| metadata.packageName = entry.getKey(); |
| switch(entry.getValue()) { |
| case ResourceOveruseConfiguration.APPLICATION_CATEGORY_TYPE_MAPS: |
| metadata.appCategoryType = ApplicationCategoryType.MAPS; |
| break; |
| case ResourceOveruseConfiguration.APPLICATION_CATEGORY_TYPE_MEDIA: |
| metadata.appCategoryType = ApplicationCategoryType.MEDIA; |
| break; |
| default: |
| Slogf.i(TAG, "Invalid application category type: %s skipping package: %s", |
| entry.getValue(), metadata.packageName); |
| continue; |
| } |
| internalConfig.packageMetadata.add(metadata); |
| } |
| internalConfig.resourceSpecificConfigurations = new ArrayList<>(); |
| if ((resourceOveruseFlag & FLAG_RESOURCE_OVERUSE_IO) != 0 |
| && config.getIoOveruseConfiguration() != null) { |
| internalConfig.resourceSpecificConfigurations.add( |
| toResourceSpecificConfiguration(config.getComponentType(), |
| config.getIoOveruseConfiguration())); |
| } |
| return internalConfig; |
| } |
| |
| private static ResourceSpecificConfiguration |
| toResourceSpecificConfiguration(int componentType, IoOveruseConfiguration config) { |
| android.automotive.watchdog.internal.IoOveruseConfiguration internalConfig = |
| new android.automotive.watchdog.internal.IoOveruseConfiguration(); |
| internalConfig.componentLevelThresholds = toPerStateIoOveruseThreshold( |
| toComponentTypeStr(componentType), config.getComponentLevelThresholds()); |
| internalConfig.packageSpecificThresholds = toPerStateIoOveruseThresholds( |
| config.getPackageSpecificThresholds()); |
| internalConfig.categorySpecificThresholds = toPerStateIoOveruseThresholds( |
| config.getAppCategorySpecificThresholds()); |
| for (int i = 0; i < internalConfig.categorySpecificThresholds.size(); ++i) { |
| PerStateIoOveruseThreshold threshold = internalConfig.categorySpecificThresholds.get(i); |
| switch(threshold.name) { |
| case ResourceOveruseConfiguration.APPLICATION_CATEGORY_TYPE_MAPS: |
| threshold.name = INTERNAL_APPLICATION_CATEGORY_TYPE_MAPS; |
| break; |
| case ResourceOveruseConfiguration.APPLICATION_CATEGORY_TYPE_MEDIA: |
| threshold.name = INTERNAL_APPLICATION_CATEGORY_TYPE_MEDIA; |
| break; |
| default: |
| threshold.name = INTERNAL_APPLICATION_CATEGORY_TYPE_UNKNOWN; |
| } |
| } |
| internalConfig.systemWideThresholds = toInternalIoOveruseAlertThresholds( |
| config.getSystemWideThresholds()); |
| |
| ResourceSpecificConfiguration resourceSpecificConfig = new ResourceSpecificConfiguration(); |
| resourceSpecificConfig.setIoOveruseConfiguration(internalConfig); |
| return resourceSpecificConfig; |
| } |
| |
| @VisibleForTesting |
| static String toComponentTypeStr(int componentType) { |
| switch(componentType) { |
| case ComponentType.SYSTEM: |
| return "SYSTEM"; |
| case ComponentType.VENDOR: |
| return "VENDOR"; |
| case ComponentType.THIRD_PARTY: |
| return "THIRD_PARTY"; |
| default: |
| return "UNKNOWN"; |
| } |
| } |
| |
| private static List<PerStateIoOveruseThreshold> toPerStateIoOveruseThresholds( |
| Map<String, PerStateBytes> thresholds) { |
| List<PerStateIoOveruseThreshold> internalThresholds = new ArrayList<>(); |
| for (Map.Entry<String, PerStateBytes> entry : thresholds.entrySet()) { |
| if (!thresholds.isEmpty()) { |
| internalThresholds.add(toPerStateIoOveruseThreshold(entry.getKey(), |
| entry.getValue())); |
| } |
| } |
| return internalThresholds; |
| } |
| |
| private static PerStateIoOveruseThreshold toPerStateIoOveruseThreshold(String name, |
| PerStateBytes perStateBytes) { |
| PerStateIoOveruseThreshold threshold = new PerStateIoOveruseThreshold(); |
| threshold.name = name; |
| threshold.perStateWriteBytes = new android.automotive.watchdog.PerStateBytes(); |
| threshold.perStateWriteBytes.foregroundBytes = perStateBytes.getForegroundModeBytes(); |
| threshold.perStateWriteBytes.backgroundBytes = perStateBytes.getBackgroundModeBytes(); |
| threshold.perStateWriteBytes.garageModeBytes = perStateBytes.getGarageModeBytes(); |
| return threshold; |
| } |
| |
| private static List<android.automotive.watchdog.internal.IoOveruseAlertThreshold> |
| toInternalIoOveruseAlertThresholds(List<IoOveruseAlertThreshold> thresholds) { |
| List<android.automotive.watchdog.internal.IoOveruseAlertThreshold> internalThresholds = |
| new ArrayList<>(); |
| for (int i = 0; i < thresholds.size(); ++i) { |
| if (thresholds.get(i).getDurationInSeconds() == 0 |
| || thresholds.get(i).getWrittenBytesPerSecond() == 0) { |
| continue; |
| } |
| android.automotive.watchdog.internal.IoOveruseAlertThreshold internalThreshold = |
| new android.automotive.watchdog.internal.IoOveruseAlertThreshold(); |
| internalThreshold.durationInSeconds = thresholds.get(i).getDurationInSeconds(); |
| internalThreshold.writtenBytesPerSecond = thresholds.get(i).getWrittenBytesPerSecond(); |
| internalThresholds.add(internalThreshold); |
| } |
| return internalThresholds; |
| } |
| |
| private static ResourceOveruseConfiguration toResourceOveruseConfiguration( |
| android.automotive.watchdog.internal.ResourceOveruseConfiguration internalConfig, |
| @CarWatchdogManager.ResourceOveruseFlag int resourceOveruseFlag) { |
| ArrayMap<String, String> packagesToAppCategoryTypes = new ArrayMap<>(); |
| for (int i = 0; i < internalConfig.packageMetadata.size(); ++i) { |
| String categoryTypeStr; |
| switch (internalConfig.packageMetadata.get(i).appCategoryType) { |
| case ApplicationCategoryType.MAPS: |
| categoryTypeStr = ResourceOveruseConfiguration.APPLICATION_CATEGORY_TYPE_MAPS; |
| break; |
| case ApplicationCategoryType.MEDIA: |
| categoryTypeStr = ResourceOveruseConfiguration.APPLICATION_CATEGORY_TYPE_MEDIA; |
| break; |
| default: |
| continue; |
| } |
| packagesToAppCategoryTypes.put( |
| internalConfig.packageMetadata.get(i).packageName, categoryTypeStr); |
| } |
| ResourceOveruseConfiguration.Builder configBuilder = |
| new ResourceOveruseConfiguration.Builder( |
| internalConfig.componentType, |
| internalConfig.safeToKillPackages, |
| internalConfig.vendorPackagePrefixes, |
| packagesToAppCategoryTypes); |
| for (ResourceSpecificConfiguration resourceSpecificConfig : |
| internalConfig.resourceSpecificConfigurations) { |
| if (resourceSpecificConfig.getTag() |
| == ResourceSpecificConfiguration.ioOveruseConfiguration |
| && (resourceOveruseFlag & FLAG_RESOURCE_OVERUSE_IO) != 0) { |
| configBuilder.setIoOveruseConfiguration(toIoOveruseConfiguration( |
| resourceSpecificConfig.getIoOveruseConfiguration())); |
| } |
| } |
| return configBuilder.build(); |
| } |
| |
| private static IoOveruseConfiguration toIoOveruseConfiguration( |
| android.automotive.watchdog.internal.IoOveruseConfiguration internalConfig) { |
| PerStateBytes componentLevelThresholds = |
| toPerStateBytes(internalConfig.componentLevelThresholds.perStateWriteBytes); |
| ArrayMap<String, PerStateBytes> packageSpecificThresholds = |
| toPerStateBytesMap(internalConfig.packageSpecificThresholds); |
| ArrayMap<String, PerStateBytes> appCategorySpecificThresholds = |
| toPerStateBytesMap(internalConfig.categorySpecificThresholds); |
| replaceKey(appCategorySpecificThresholds, INTERNAL_APPLICATION_CATEGORY_TYPE_MAPS, |
| ResourceOveruseConfiguration.APPLICATION_CATEGORY_TYPE_MAPS); |
| replaceKey(appCategorySpecificThresholds, INTERNAL_APPLICATION_CATEGORY_TYPE_MEDIA, |
| ResourceOveruseConfiguration.APPLICATION_CATEGORY_TYPE_MEDIA); |
| List<IoOveruseAlertThreshold> systemWideThresholds = |
| toIoOveruseAlertThresholds(internalConfig.systemWideThresholds); |
| |
| IoOveruseConfiguration.Builder configBuilder = new IoOveruseConfiguration.Builder( |
| componentLevelThresholds, packageSpecificThresholds, appCategorySpecificThresholds, |
| systemWideThresholds); |
| return configBuilder.build(); |
| } |
| |
| private static ArrayMap<String, PerStateBytes> toPerStateBytesMap( |
| List<PerStateIoOveruseThreshold> thresholds) { |
| ArrayMap<String, PerStateBytes> thresholdsMap = new ArrayMap<>(); |
| for (int i = 0; i < thresholds.size(); ++i) { |
| thresholdsMap.put( |
| thresholds.get(i).name, toPerStateBytes(thresholds.get(i).perStateWriteBytes)); |
| } |
| return thresholdsMap; |
| } |
| |
| private static List<IoOveruseAlertThreshold> toIoOveruseAlertThresholds( |
| List<android.automotive.watchdog.internal.IoOveruseAlertThreshold> internalThresholds) { |
| List<IoOveruseAlertThreshold> thresholds = new ArrayList<>(); |
| for (int i = 0; i < internalThresholds.size(); ++i) { |
| thresholds.add(new IoOveruseAlertThreshold(internalThresholds.get(i).durationInSeconds, |
| internalThresholds.get(i).writtenBytesPerSecond)); |
| } |
| return thresholds; |
| } |
| |
| private static void checkResourceOveruseConfigs( |
| List<ResourceOveruseConfiguration> configurations, |
| @CarWatchdogManager.ResourceOveruseFlag int resourceOveruseFlag) { |
| ArraySet<Integer> seenComponentTypes = new ArraySet<>(); |
| for (int i = 0; i < configurations.size(); ++i) { |
| ResourceOveruseConfiguration config = configurations.get(i); |
| if (seenComponentTypes.contains(config.getComponentType())) { |
| throw new IllegalArgumentException( |
| "Cannot provide duplicate configurations for the same component type"); |
| } |
| checkResourceOveruseConfig(config, resourceOveruseFlag); |
| seenComponentTypes.add(config.getComponentType()); |
| } |
| } |
| |
| private static void checkResourceOveruseConfig(ResourceOveruseConfiguration config, |
| @CarWatchdogManager.ResourceOveruseFlag int resourceOveruseFlag) { |
| int componentType = config.getComponentType(); |
| if (toComponentTypeStr(componentType).equals("UNKNOWN")) { |
| throw new IllegalArgumentException( |
| "Invalid component type in the configuration: " + componentType); |
| } |
| if ((resourceOveruseFlag & FLAG_RESOURCE_OVERUSE_IO) != 0 |
| && config.getIoOveruseConfiguration() == null) { |
| throw new IllegalArgumentException("Must provide I/O overuse configuration"); |
| } |
| checkIoOveruseConfig(config.getIoOveruseConfiguration(), componentType); |
| } |
| |
| private static void checkIoOveruseConfig(IoOveruseConfiguration config, int componentType) { |
| if (config.getComponentLevelThresholds().getBackgroundModeBytes() <= 0 |
| || config.getComponentLevelThresholds().getForegroundModeBytes() <= 0 |
| || config.getComponentLevelThresholds().getGarageModeBytes() <= 0) { |
| throw new IllegalArgumentException( |
| "For component: " + toComponentTypeStr(componentType) |
| + " some thresholds are zero for: " |
| + config.getComponentLevelThresholds().toString()); |
| } |
| if (componentType == ComponentType.SYSTEM) { |
| List<IoOveruseAlertThreshold> systemThresholds = config.getSystemWideThresholds(); |
| if (systemThresholds.isEmpty()) { |
| throw new IllegalArgumentException( |
| "Empty system-wide alert thresholds provided in " |
| + toComponentTypeStr(componentType) |
| + " config."); |
| } |
| for (int i = 0; i < systemThresholds.size(); i++) { |
| checkIoOveruseAlertThreshold(systemThresholds.get(i)); |
| } |
| } |
| } |
| |
| private static void checkIoOveruseAlertThreshold( |
| IoOveruseAlertThreshold ioOveruseAlertThreshold) { |
| if (ioOveruseAlertThreshold.getDurationInSeconds() <= 0) { |
| throw new IllegalArgumentException( |
| "System wide threshold duration must be greater than zero for: " |
| + ioOveruseAlertThreshold); |
| } |
| if (ioOveruseAlertThreshold.getWrittenBytesPerSecond() <= 0) { |
| throw new IllegalArgumentException( |
| "System wide threshold written bytes per second must be greater than zero for: " |
| + ioOveruseAlertThreshold); |
| } |
| } |
| |
| private static void replaceKey(Map<String, PerStateBytes> map, String oldKey, String newKey) { |
| PerStateBytes perStateBytes = map.get(oldKey); |
| if (perStateBytes != null) { |
| map.put(newKey, perStateBytes); |
| map.remove(oldKey); |
| } |
| } |
| |
| private static int toNumDays(@CarWatchdogManager.StatsPeriod int maxStatsPeriod) { |
| switch(maxStatsPeriod) { |
| case STATS_PERIOD_CURRENT_DAY: |
| return 0; |
| case STATS_PERIOD_PAST_3_DAYS: |
| return 3; |
| case STATS_PERIOD_PAST_7_DAYS: |
| return 7; |
| case STATS_PERIOD_PAST_15_DAYS: |
| return 15; |
| case STATS_PERIOD_PAST_30_DAYS: |
| return 30; |
| default: |
| throw new IllegalArgumentException( |
| "Invalid max stats period provided: " + maxStatsPeriod); |
| } |
| } |
| |
| private final class PackageResourceUsage { |
| public final String genericPackageName; |
| public @UserIdInt final int userId; |
| @GuardedBy("mLock") |
| public final PackageIoUsage ioUsage = new PackageIoUsage(); |
| @GuardedBy("mLock") |
| private @KillableState int mKillableState; |
| |
| /** Must be called only after acquiring {@link mLock} */ |
| PackageResourceUsage(@UserIdInt int userId, String genericPackageName) { |
| this.genericPackageName = genericPackageName; |
| this.userId = userId; |
| this.mKillableState = mDefaultNotKillableGenericPackages.contains(genericPackageName) |
| ? KILLABLE_STATE_NO : KILLABLE_STATE_YES; |
| } |
| |
| public boolean isSharedPackage() { |
| return this.genericPackageName.startsWith(SHARED_PACKAGE_PREFIX); |
| } |
| |
| @GuardedBy("mLock") |
| public void updateLocked(android.automotive.watchdog.IoOveruseStats internalStats) { |
| if (!internalStats.killableOnOveruse) { |
| /* |
| * Killable value specified in the internal stats is provided by the native daemon. |
| * This value reflects whether or not an application is safe-to-kill on overuse. |
| * This setting is from the I/O overuse configuration specified by the system and |
| * vendor services and doesn't reflect the user choices. Thus if the internal stats |
| * specify the application is not killable, the application is not safe-to-kill. |
| */ |
| mKillableState = KILLABLE_STATE_NEVER; |
| } else if (mKillableState == KILLABLE_STATE_NEVER) { |
| /* |
| * This case happens when a previously unsafe to kill system/vendor package was |
| * recently marked as safe-to-kill so update the old state to the default value. |
| */ |
| mKillableState = mDefaultNotKillableGenericPackages.contains(genericPackageName) |
| ? KILLABLE_STATE_NO : KILLABLE_STATE_YES; |
| } |
| ioUsage.update(internalStats); |
| } |
| |
| public ResourceOveruseStats.Builder getResourceOveruseStatsBuilder() { |
| return new ResourceOveruseStats.Builder(genericPackageName, UserHandle.of(userId)); |
| } |
| |
| @GuardedBy("mLock") |
| public IoOveruseStats getIoOveruseStatsLocked() { |
| if (!ioUsage.hasUsage()) { |
| return null; |
| } |
| return ioUsage.getIoOveruseStats(mKillableState != KILLABLE_STATE_NEVER); |
| } |
| |
| @GuardedBy("mLock") |
| public @KillableState int getKillableStateLocked() { |
| return mKillableState; |
| } |
| |
| @GuardedBy("mLock") |
| public void setKillableStateLocked(@KillableState int killableState) { |
| mKillableState = killableState; |
| } |
| |
| @GuardedBy("mLock") |
| public boolean verifyAndSetKillableStateLocked(boolean isKillable) { |
| if (mKillableState == KILLABLE_STATE_NEVER) { |
| return false; |
| } |
| mKillableState = isKillable ? KILLABLE_STATE_YES : KILLABLE_STATE_NO; |
| return true; |
| } |
| |
| @GuardedBy("mLock") |
| public int syncAndFetchKillableStateLocked(int myComponentType, boolean isSafeToKill) { |
| /* |
| * The killable state goes out-of-sync: |
| * 1. When the on-device safe-to-kill list was recently updated and the user package |
| * didn't have any resource usage so the native daemon didn't update the killable state. |
| * 2. When a package has no resource usage and is initialized outside of processing the |
| * latest resource usage stats. |
| */ |
| if (myComponentType != ComponentType.THIRD_PARTY && !isSafeToKill) { |
| mKillableState = KILLABLE_STATE_NEVER; |
| } else if (mKillableState == KILLABLE_STATE_NEVER) { |
| mKillableState = mDefaultNotKillableGenericPackages.contains(genericPackageName) |
| ? KILLABLE_STATE_NO : KILLABLE_STATE_YES; |
| } |
| return mKillableState; |
| } |
| |
| @GuardedBy("mLock") |
| public void resetStatsLocked() { |
| ioUsage.resetStats(); |
| } |
| } |
| /** Defines I/O usage fields for a package. */ |
| public static final class PackageIoUsage { |
| private static final android.automotive.watchdog.PerStateBytes DEFAULT_PER_STATE_BYTES = |
| new android.automotive.watchdog.PerStateBytes(); |
| private android.automotive.watchdog.IoOveruseStats mIoOveruseStats; |
| private android.automotive.watchdog.PerStateBytes mForgivenWriteBytes; |
| private int mTotalTimesKilled; |
| |
| private PackageIoUsage() { |
| mForgivenWriteBytes = DEFAULT_PER_STATE_BYTES; |
| mTotalTimesKilled = 0; |
| } |
| |
| public PackageIoUsage(android.automotive.watchdog.IoOveruseStats ioOveruseStats, |
| android.automotive.watchdog.PerStateBytes forgivenWriteBytes, |
| int totalTimesKilled) { |
| mIoOveruseStats = ioOveruseStats; |
| mForgivenWriteBytes = forgivenWriteBytes; |
| mTotalTimesKilled = totalTimesKilled; |
| } |
| |
| public android.automotive.watchdog.IoOveruseStats getInternalIoOveruseStats() { |
| return mIoOveruseStats; |
| } |
| |
| public android.automotive.watchdog.PerStateBytes getForgivenWriteBytes() { |
| return mForgivenWriteBytes; |
| } |
| |
| public int getTotalTimesKilled() { |
| return mTotalTimesKilled; |
| } |
| |
| boolean hasUsage() { |
| return mIoOveruseStats != null; |
| } |
| |
| void overwrite(PackageIoUsage ioUsage) { |
| mIoOveruseStats = ioUsage.mIoOveruseStats; |
| mForgivenWriteBytes = ioUsage.mForgivenWriteBytes; |
| mTotalTimesKilled = ioUsage.mTotalTimesKilled; |
| } |
| |
| void update(android.automotive.watchdog.IoOveruseStats internalStats) { |
| mIoOveruseStats = internalStats; |
| if (exceedsThreshold()) { |
| /* |
| * Forgive written bytes on overuse as the package is either forgiven or killed on |
| * overuse. When the package is killed, the user may opt to open the corresponding |
| * app and the package should be forgiven anyways. |
| * NOTE: If this logic is updated, update the daemon side logic as well. |
| */ |
| mForgivenWriteBytes = internalStats.writtenBytes; |
| } |
| } |
| |
| IoOveruseStats getIoOveruseStats(boolean isKillable) { |
| return toIoOveruseStatsBuilder(mIoOveruseStats, mTotalTimesKilled, isKillable).build(); |
| } |
| |
| boolean exceedsThreshold() { |
| if (!hasUsage()) { |
| return false; |
| } |
| android.automotive.watchdog.PerStateBytes remaining = |
| mIoOveruseStats.remainingWriteBytes; |
| return remaining.foregroundBytes == 0 || remaining.backgroundBytes == 0 |
| || remaining.garageModeBytes == 0; |
| } |
| |
| void killed() { |
| ++mTotalTimesKilled; |
| } |
| |
| void resetStats() { |
| mIoOveruseStats = null; |
| mForgivenWriteBytes = DEFAULT_PER_STATE_BYTES; |
| mTotalTimesKilled = 0; |
| } |
| } |
| |
| private final class ResourceOveruseListenerInfo implements IBinder.DeathRecipient { |
| public final IResourceOveruseListener listener; |
| public final @CarWatchdogManager.ResourceOveruseFlag int flag; |
| public final int pid; |
| public final int uid; |
| public final boolean isListenerForSystem; |
| |
| ResourceOveruseListenerInfo(IResourceOveruseListener listener, |
| @CarWatchdogManager.ResourceOveruseFlag int flag, int pid, int uid, |
| boolean isListenerForSystem) { |
| this.listener = listener; |
| this.flag = flag; |
| this.pid = pid; |
| this.uid = uid; |
| this.isListenerForSystem = isListenerForSystem; |
| } |
| |
| @Override |
| public void binderDied() { |
| Slogf.w(TAG, "Resource overuse listener%s (pid: %d) died", |
| isListenerForSystem ? " for system" : "", pid); |
| Consumer<SparseArray<ArrayList<ResourceOveruseListenerInfo>>> removeListenerInfo = |
| listenerInfosByUid -> { |
| ArrayList<ResourceOveruseListenerInfo> listenerInfos = |
| listenerInfosByUid.get(uid); |
| if (listenerInfos == null) { |
| return; |
| } |
| listenerInfos.remove(this); |
| if (listenerInfos.isEmpty()) { |
| listenerInfosByUid.remove(uid); |
| } |
| }; |
| if (isListenerForSystem) { |
| removeListenerInfo.accept(mOveruseSystemListenerInfosByUid); |
| } else { |
| removeListenerInfo.accept(mOveruseListenerInfosByUid); |
| } |
| unlinkToDeath(); |
| } |
| |
| public void notifyListener(@CarWatchdogManager.ResourceOveruseFlag int resourceType, |
| int overusingUid, String overusingGenericPackageName, |
| ResourceOveruseStats resourceOveruseStats) { |
| if ((flag & resourceType) == 0) { |
| return; |
| } |
| try { |
| listener.onOveruse(resourceOveruseStats); |
| } catch (RemoteException e) { |
| Slogf.e(TAG, "Failed to notify %s (uid %d, pid: %d) of resource overuse by " |
| + "package(uid %d, generic package name '%s'): %s", |
| (isListenerForSystem ? "system listener" : "listener"), uid, pid, |
| overusingUid, overusingGenericPackageName, e); |
| } |
| } |
| |
| private void linkToDeath() throws RemoteException { |
| listener.asBinder().linkToDeath(this, 0); |
| } |
| |
| private void unlinkToDeath() { |
| listener.asBinder().unlinkToDeath(this, 0); |
| } |
| } |
| } |
