137 lines
4.9 KiB
Java
137 lines
4.9 KiB
Java
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.car;
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import static com.android.car.internal.ExcludeFromCodeCoverageGeneratedReport.DUMP_INFO;
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import android.car.builtin.os.ServiceManagerHelper;
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import android.car.builtin.os.SystemPropertiesHelper;
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import android.car.builtin.os.TraceHelper;
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import android.car.builtin.util.EventLogHelper;
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import android.car.builtin.util.Slogf;
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import android.content.Intent;
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import android.os.IBinder;
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import android.os.Process;
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import com.android.car.internal.ExcludeFromCodeCoverageGeneratedReport;
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import com.android.car.internal.ProxiedService;
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import com.android.car.systeminterface.SystemInterface;
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import com.android.car.util.LimitedTimingsTraceLog;
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import java.io.FileDescriptor;
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import java.io.PrintWriter;
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/** Implementation of CarService */
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public class CarServiceImpl extends ProxiedService {
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public static final String CAR_SERVICE_INIT_TIMING_TAG = "CAR.InitTiming";
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public static final int CAR_SERVICE_INIT_TIMING_MIN_DURATION_MS = 5;
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private ICarImpl mICarImpl;
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private VehicleStub mVehicle;
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private String mVehicleInterfaceName;
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private final VehicleDeathRecipient mVehicleDeathRecipient = new VehicleDeathRecipient();
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@Override
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public void onCreate() {
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LimitedTimingsTraceLog initTiming = new LimitedTimingsTraceLog(CAR_SERVICE_INIT_TIMING_TAG,
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TraceHelper.TRACE_TAG_CAR_SERVICE, CAR_SERVICE_INIT_TIMING_MIN_DURATION_MS);
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initTiming.traceBegin("CarService.onCreate");
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initTiming.traceBegin("getVehicle");
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mVehicle = VehicleStub.newVehicleStub();
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initTiming.traceEnd(); // "getVehicle"
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EventLogHelper.writeCarServiceCreate(/* hasVhal= */ mVehicle.isValid());
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mVehicleInterfaceName = mVehicle.getInterfaceDescriptor();
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Slogf.i(CarLog.TAG_SERVICE, "Connected to " + mVehicleInterfaceName);
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EventLogHelper.writeCarServiceConnected(mVehicleInterfaceName);
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mICarImpl = new ICarImpl(this,
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getBuiltinPackageContext(),
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mVehicle,
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SystemInterface.Builder.defaultSystemInterface(this).build(),
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mVehicleInterfaceName);
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mICarImpl.init();
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mVehicle.linkToDeath(mVehicleDeathRecipient);
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ServiceManagerHelper.addService("car_service", mICarImpl);
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SystemPropertiesHelper.set("boot.car_service_created", "1");
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super.onCreate();
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initTiming.traceEnd(); // "CarService.onCreate"
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}
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// onDestroy is best-effort and might not get called on shutdown/reboot. As such it is not
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// suitable for permanently saving state or other need-to-happen operation. If you have a
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// cleanup task that you want to make sure happens on shutdown/reboot, see OnShutdownReboot.
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@Override
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public void onDestroy() {
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EventLogHelper.writeCarServiceDestroy(/* hasVhal= */ mVehicle.isValid());
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Slogf.i(CarLog.TAG_SERVICE, "Service onDestroy");
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mICarImpl.release();
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mVehicle.unlinkToDeath(mVehicleDeathRecipient);
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mVehicle = null;
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super.onDestroy();
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}
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@Override
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public int onStartCommand(Intent intent, int flags, int startId) {
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// keep it alive.
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return START_STICKY;
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}
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@Override
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public IBinder onBind(Intent intent) {
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return mICarImpl;
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}
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@Override
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@ExcludeFromCodeCoverageGeneratedReport(reason = DUMP_INFO)
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protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) {
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// historically, the way to get a dumpsys from CarService has been to use
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// "dumpsys activity service com.android.car/.CarService" - leaving this
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// as a forward to car_service makes the previously well-known command still work
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mICarImpl.dump(fd, writer, args);
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}
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private static class VehicleDeathRecipient implements IVehicleDeathRecipient {
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@Override
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public void serviceDied(long cookie) {
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EventLogHelper.writeCarServiceVhalDied(cookie);
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Slogf.wtf(CarLog.TAG_SERVICE, "***Vehicle HAL died. Car service will restart***");
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Process.killProcess(Process.myPid());
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}
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@Override
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public void binderDied() {
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EventLogHelper.writeCarServiceVhalDied(/*cookie=*/ 0);
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Slogf.wtf(CarLog.TAG_SERVICE, "***Vehicle HAL died. Car service will restart***");
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Process.killProcess(Process.myPid());
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}
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}
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}
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