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/*
* Copyright (C) 2017 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 android.content.Context;
import android.os.IDeviceIdleController;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.os.UserHandle;
import android.util.Slog;
import com.android.internal.util.ArrayUtils;
import com.android.server.ForceAppStandbyTracker;
import com.android.server.ForceAppStandbyTracker.Listener;
import com.android.server.job.JobSchedulerService;
import com.android.server.job.JobStore;
import java.io.PrintWriter;
public final class BackgroundJobsController extends StateController {
private static final String LOG_TAG = "BackgroundJobsController";
private static final boolean DEBUG = JobSchedulerService.DEBUG;
// Singleton factory
private static final Object sCreationLock = new Object();
private static volatile BackgroundJobsController sController;
private final JobSchedulerService mJobSchedulerService;
private final IDeviceIdleController mDeviceIdleController;
private final ForceAppStandbyTracker mForceAppStandbyTracker;
public static BackgroundJobsController get(JobSchedulerService service) {
synchronized (sCreationLock) {
if (sController == null) {
sController = new BackgroundJobsController(service, service.getContext(),
service.getLock());
}
return sController;
}
}
private BackgroundJobsController(JobSchedulerService service, Context context, Object lock) {
super(service, context, lock);
mJobSchedulerService = service;
mDeviceIdleController = IDeviceIdleController.Stub.asInterface(
ServiceManager.getService(Context.DEVICE_IDLE_CONTROLLER));
mForceAppStandbyTracker = ForceAppStandbyTracker.getInstance(context);
mForceAppStandbyTracker.addListener(mForceAppStandbyListener);
mForceAppStandbyTracker.start();
}
@Override
public void maybeStartTrackingJobLocked(JobStatus jobStatus, JobStatus lastJob) {
updateSingleJobRestrictionLocked(jobStatus);
}
@Override
public void maybeStopTrackingJobLocked(JobStatus jobStatus, JobStatus incomingJob,
boolean forUpdate) {
}
@Override
public void dumpControllerStateLocked(final PrintWriter pw, final int filterUid) {
pw.println("BackgroundJobsController");
mForceAppStandbyTracker.dump(pw, "");
pw.println("Job state:");
mJobSchedulerService.getJobStore().forEachJob((jobStatus) -> {
if (!jobStatus.shouldDump(filterUid)) {
return;
}
final int uid = jobStatus.getSourceUid();
pw.print(" #");
jobStatus.printUniqueId(pw);
pw.print(" from ");
UserHandle.formatUid(pw, uid);
pw.print(mForceAppStandbyTracker.isInForeground(uid) ? " foreground" : " background");
if (mForceAppStandbyTracker.isUidPowerSaveWhitelisted(uid) ||
mForceAppStandbyTracker.isUidTempPowerSaveWhitelisted(uid)) {
pw.print(", whitelisted");
}
pw.print(": ");
pw.print(jobStatus.getSourcePackageName());
pw.print(" [RUN_ANY_IN_BACKGROUND ");
pw.print(mForceAppStandbyTracker.isRunAnyInBackgroundAppOpsAllowed(
jobStatus.getSourceUid(), jobStatus.getSourcePackageName())
? "allowed]" : "disallowed]");
if ((jobStatus.satisfiedConstraints
& JobStatus.CONSTRAINT_BACKGROUND_NOT_RESTRICTED) != 0) {
pw.println(" RUNNABLE");
} else {
pw.println(" WAITING");
}
});
}
private void updateAllJobRestrictionsLocked() {
updateJobRestrictionsLocked(/*filterUid=*/ -1);
}
private void updateJobRestrictionsForUidLocked(int uid) {
// TODO Use forEachJobForSourceUid() once we have it.
updateJobRestrictionsLocked(/*filterUid=*/ uid);
}
private void updateJobRestrictionsLocked(int filterUid) {
final UpdateJobFunctor updateTrackedJobs =
new UpdateJobFunctor(filterUid);
final long start = DEBUG ? SystemClock.elapsedRealtimeNanos() : 0;
mJobSchedulerService.getJobStore().forEachJob(updateTrackedJobs);
final long time = DEBUG ? (SystemClock.elapsedRealtimeNanos() - start) : 0;
if (DEBUG) {
Slog.d(LOG_TAG, String.format(
"Job status updated: %d/%d checked/total jobs, %d us",
updateTrackedJobs.mCheckedCount,
updateTrackedJobs.mTotalCount,
(time / 1000)
));
}
if (updateTrackedJobs.mChanged) {
mStateChangedListener.onControllerStateChanged();
}
}
boolean updateSingleJobRestrictionLocked(JobStatus jobStatus) {
final int uid = jobStatus.getSourceUid();
final String packageName = jobStatus.getSourcePackageName();
final boolean canRun = !mForceAppStandbyTracker.areJobsRestricted(uid, packageName);
return jobStatus.setBackgroundNotRestrictedConstraintSatisfied(canRun);
}
private final class UpdateJobFunctor implements JobStore.JobStatusFunctor {
private final int mFilterUid;
boolean mChanged = false;
int mTotalCount = 0;
int mCheckedCount = 0;
UpdateJobFunctor(int filterUid) {
mFilterUid = filterUid;
}
@Override
public void process(JobStatus jobStatus) {
mTotalCount++;
if ((mFilterUid > 0) && (mFilterUid != jobStatus.getSourceUid())) {
return;
}
mCheckedCount++;
if (updateSingleJobRestrictionLocked(jobStatus)) {
mChanged = true;
}
}
}
private final Listener mForceAppStandbyListener = new Listener() {
@Override
public void updateAllJobs() {
updateAllJobRestrictionsLocked();
}
@Override
public void updateJobsForUid(int uid) {
updateJobRestrictionsForUidLocked(uid);
}
@Override
public void updateJobsForUidPackage(int uid, String packageName) {
updateJobRestrictionsForUidLocked(uid);
}
};
}
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