| /* |
| * Copyright (C) 2014 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.server.job.controllers; |
| |
| import static com.android.server.job.JobSchedulerService.sElapsedRealtimeClock; |
| |
| import android.annotation.NonNull; |
| import android.app.job.JobInfo; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.os.BatteryManager; |
| import android.os.BatteryManagerInternal; |
| import android.os.UserHandle; |
| import android.util.ArraySet; |
| import android.util.IndentingPrintWriter; |
| import android.util.Log; |
| import android.util.Slog; |
| import android.util.proto.ProtoOutputStream; |
| |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.server.JobSchedulerBackgroundThread; |
| import com.android.server.LocalServices; |
| import com.android.server.job.JobSchedulerService; |
| import com.android.server.job.StateControllerProto; |
| |
| import java.util.function.Predicate; |
| |
| /** |
| * Simple controller that tracks whether the phone is charging or not. The phone is considered to |
| * be charging when it's been plugged in for more than two minutes, and the system has broadcast |
| * ACTION_BATTERY_OK. |
| */ |
| public final class BatteryController extends RestrictingController { |
| private static final String TAG = "JobScheduler.Battery"; |
| private static final boolean DEBUG = JobSchedulerService.DEBUG |
| || Log.isLoggable(TAG, Log.DEBUG); |
| |
| @GuardedBy("mLock") |
| private final ArraySet<JobStatus> mTrackedTasks = new ArraySet<>(); |
| /** |
| * List of jobs that started while the UID was in the TOP state. |
| */ |
| @GuardedBy("mLock") |
| private final ArraySet<JobStatus> mTopStartedJobs = new ArraySet<>(); |
| |
| private final PowerTracker mPowerTracker; |
| |
| /** |
| * Helper set to avoid too much GC churn from frequent calls to |
| * {@link #maybeReportNewChargingStateLocked()}. |
| */ |
| private final ArraySet<JobStatus> mChangedJobs = new ArraySet<>(); |
| |
| public BatteryController(JobSchedulerService service) { |
| super(service); |
| mPowerTracker = new PowerTracker(); |
| mPowerTracker.startTracking(); |
| } |
| |
| @Override |
| public void maybeStartTrackingJobLocked(JobStatus taskStatus, JobStatus lastJob) { |
| if (taskStatus.hasPowerConstraint()) { |
| final long nowElapsed = sElapsedRealtimeClock.millis(); |
| mTrackedTasks.add(taskStatus); |
| taskStatus.setTrackingController(JobStatus.TRACKING_BATTERY); |
| if (taskStatus.hasChargingConstraint()) { |
| if (hasTopExemptionLocked(taskStatus)) { |
| taskStatus.setChargingConstraintSatisfied(nowElapsed, |
| mPowerTracker.isPowerConnected()); |
| } else { |
| taskStatus.setChargingConstraintSatisfied(nowElapsed, |
| mService.isBatteryCharging() && mService.isBatteryNotLow()); |
| } |
| } |
| taskStatus.setBatteryNotLowConstraintSatisfied(nowElapsed, mService.isBatteryNotLow()); |
| } |
| } |
| |
| @Override |
| public void startTrackingRestrictedJobLocked(JobStatus jobStatus) { |
| maybeStartTrackingJobLocked(jobStatus, null); |
| } |
| |
| @Override |
| @GuardedBy("mLock") |
| public void prepareForExecutionLocked(JobStatus jobStatus) { |
| if (DEBUG) { |
| Slog.d(TAG, "Prepping for " + jobStatus.toShortString()); |
| } |
| |
| final int uid = jobStatus.getSourceUid(); |
| if (mService.getUidBias(uid) == JobInfo.BIAS_TOP_APP) { |
| if (DEBUG) { |
| Slog.d(TAG, jobStatus.toShortString() + " is top started job"); |
| } |
| mTopStartedJobs.add(jobStatus); |
| } |
| } |
| |
| @Override |
| @GuardedBy("mLock") |
| public void unprepareFromExecutionLocked(JobStatus jobStatus) { |
| mTopStartedJobs.remove(jobStatus); |
| } |
| |
| @Override |
| public void maybeStopTrackingJobLocked(JobStatus taskStatus, JobStatus incomingJob, boolean forUpdate) { |
| if (taskStatus.clearTrackingController(JobStatus.TRACKING_BATTERY)) { |
| mTrackedTasks.remove(taskStatus); |
| mTopStartedJobs.remove(taskStatus); |
| } |
| } |
| |
| @Override |
| public void stopTrackingRestrictedJobLocked(JobStatus jobStatus) { |
| if (!jobStatus.hasPowerConstraint()) { |
| maybeStopTrackingJobLocked(jobStatus, null, false); |
| } |
| } |
| |
| @Override |
| @GuardedBy("mLock") |
| public void onBatteryStateChangedLocked() { |
| // Update job bookkeeping out of band. |
| JobSchedulerBackgroundThread.getHandler().post(() -> { |
| synchronized (mLock) { |
| maybeReportNewChargingStateLocked(); |
| } |
| }); |
| } |
| |
| @Override |
| @GuardedBy("mLock") |
| public void onUidBiasChangedLocked(int uid, int prevBias, int newBias) { |
| if (prevBias == JobInfo.BIAS_TOP_APP || newBias == JobInfo.BIAS_TOP_APP) { |
| maybeReportNewChargingStateLocked(); |
| } |
| } |
| |
| @GuardedBy("mLock") |
| private boolean hasTopExemptionLocked(@NonNull JobStatus taskStatus) { |
| return mService.getUidBias(taskStatus.getSourceUid()) == JobInfo.BIAS_TOP_APP |
| || mTopStartedJobs.contains(taskStatus); |
| } |
| |
| @GuardedBy("mLock") |
| private void maybeReportNewChargingStateLocked() { |
| final boolean powerConnected = mPowerTracker.isPowerConnected(); |
| final boolean stablePower = mService.isBatteryCharging() && mService.isBatteryNotLow(); |
| final boolean batteryNotLow = mService.isBatteryNotLow(); |
| if (DEBUG) { |
| Slog.d(TAG, "maybeReportNewChargingStateLocked: " |
| + powerConnected + "/" + stablePower + "/" + batteryNotLow); |
| } |
| final long nowElapsed = sElapsedRealtimeClock.millis(); |
| for (int i = mTrackedTasks.size() - 1; i >= 0; i--) { |
| final JobStatus ts = mTrackedTasks.valueAt(i); |
| if (ts.hasChargingConstraint()) { |
| if (hasTopExemptionLocked(ts) |
| && ts.getEffectivePriority() >= JobInfo.PRIORITY_DEFAULT) { |
| // If the job started while the app was on top or the app is currently on top, |
| // let the job run as long as there's power connected, even if the device isn't |
| // officially charging. |
| // For user requested/initiated jobs, users may be confused when the task stops |
| // running even though the device is plugged in. |
| // Low priority jobs don't need to be exempted. |
| if (ts.setChargingConstraintSatisfied(nowElapsed, powerConnected)) { |
| mChangedJobs.add(ts); |
| } |
| } else if (ts.setChargingConstraintSatisfied(nowElapsed, stablePower)) { |
| mChangedJobs.add(ts); |
| } |
| } |
| if (ts.hasBatteryNotLowConstraint() |
| && ts.setBatteryNotLowConstraintSatisfied(nowElapsed, batteryNotLow)) { |
| mChangedJobs.add(ts); |
| } |
| } |
| if (stablePower || batteryNotLow) { |
| // If one of our conditions has been satisfied, always schedule any newly ready jobs. |
| mStateChangedListener.onRunJobNow(null); |
| } else if (mChangedJobs.size() > 0) { |
| // Otherwise, just let the job scheduler know the state has changed and take care of it |
| // as it thinks is best. |
| mStateChangedListener.onControllerStateChanged(mChangedJobs); |
| } |
| mChangedJobs.clear(); |
| } |
| |
| private final class PowerTracker extends BroadcastReceiver { |
| /** |
| * Track whether there is power connected. It doesn't mean the device is charging. |
| * Use {@link JobSchedulerService#isBatteryCharging()} to determine if the device is |
| * charging. |
| */ |
| private boolean mPowerConnected; |
| |
| PowerTracker() { |
| } |
| |
| void startTracking() { |
| IntentFilter filter = new IntentFilter(); |
| |
| filter.addAction(Intent.ACTION_POWER_CONNECTED); |
| filter.addAction(Intent.ACTION_POWER_DISCONNECTED); |
| mContext.registerReceiver(this, filter); |
| |
| // Initialize tracker state. |
| BatteryManagerInternal batteryManagerInternal = |
| LocalServices.getService(BatteryManagerInternal.class); |
| mPowerConnected = batteryManagerInternal.isPowered(BatteryManager.BATTERY_PLUGGED_ANY); |
| } |
| |
| boolean isPowerConnected() { |
| return mPowerConnected; |
| } |
| |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| synchronized (mLock) { |
| final String action = intent.getAction(); |
| |
| if (Intent.ACTION_POWER_CONNECTED.equals(action)) { |
| if (DEBUG) { |
| Slog.d(TAG, "Power connected @ " + sElapsedRealtimeClock.millis()); |
| } |
| if (mPowerConnected) { |
| return; |
| } |
| mPowerConnected = true; |
| } else if (Intent.ACTION_POWER_DISCONNECTED.equals(action)) { |
| if (DEBUG) { |
| Slog.d(TAG, "Power disconnected @ " + sElapsedRealtimeClock.millis()); |
| } |
| if (!mPowerConnected) { |
| return; |
| } |
| mPowerConnected = false; |
| } |
| |
| maybeReportNewChargingStateLocked(); |
| } |
| } |
| } |
| |
| @Override |
| public void dumpControllerStateLocked(IndentingPrintWriter pw, |
| Predicate<JobStatus> predicate) { |
| pw.println("Power connected: " + mPowerTracker.isPowerConnected()); |
| pw.println("Stable power: " + (mService.isBatteryCharging() && mService.isBatteryNotLow())); |
| pw.println("Not low: " + mService.isBatteryNotLow()); |
| |
| for (int i = 0; i < mTrackedTasks.size(); i++) { |
| final JobStatus js = mTrackedTasks.valueAt(i); |
| if (!predicate.test(js)) { |
| continue; |
| } |
| pw.print("#"); |
| js.printUniqueId(pw); |
| pw.print(" from "); |
| UserHandle.formatUid(pw, js.getSourceUid()); |
| pw.println(); |
| } |
| } |
| |
| @Override |
| public void dumpControllerStateLocked(ProtoOutputStream proto, long fieldId, |
| Predicate<JobStatus> predicate) { |
| final long token = proto.start(fieldId); |
| final long mToken = proto.start(StateControllerProto.BATTERY); |
| |
| proto.write(StateControllerProto.BatteryController.IS_ON_STABLE_POWER, |
| mService.isBatteryCharging() && mService.isBatteryNotLow()); |
| proto.write(StateControllerProto.BatteryController.IS_BATTERY_NOT_LOW, |
| mService.isBatteryNotLow()); |
| |
| for (int i = 0; i < mTrackedTasks.size(); i++) { |
| final JobStatus js = mTrackedTasks.valueAt(i); |
| if (!predicate.test(js)) { |
| continue; |
| } |
| final long jsToken = proto.start(StateControllerProto.BatteryController.TRACKED_JOBS); |
| js.writeToShortProto(proto, StateControllerProto.BatteryController.TrackedJob.INFO); |
| proto.write(StateControllerProto.BatteryController.TrackedJob.SOURCE_UID, |
| js.getSourceUid()); |
| proto.end(jsToken); |
| } |
| |
| proto.end(mToken); |
| proto.end(token); |
| } |
| } |