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Commit 97fc6f5e authored by Yu-Han Yang's avatar Yu-Han Yang
Browse files

Log the last GnssMeasurementsEvent summary in dumpsys 

Bug: 319518263
Test: on device
Change-Id: Iee0116b15712838f710aeb6ff72becd0a9ddd1ce
parent 55e27576

services/core/java/com/android/server/location/gnss/GnssMeasurementsProvider.java

+48 −0
Original line number Original line Diff line number Diff line
@@ -25,6 +25,7 @@ import static com.android.server.location.gnss.GnssManagerService.TAG; 
import android.annotation.NonNull;

import android.annotation.NonNull;

import android.annotation.Nullable;

import android.annotation.Nullable;

import android.app.AppOpsManager;

import android.app.AppOpsManager;

import android.location.GnssMeasurement;

import android.location.GnssMeasurementRequest;

import android.location.GnssMeasurementRequest;

import android.location.GnssMeasurementsEvent;

import android.location.GnssMeasurementsEvent;

import android.location.IGnssMeasurementsListener;

import android.location.IGnssMeasurementsListener;
@@ -33,6 +34,7 @@ import android.os.IBinder; 
import android.stats.location.LocationStatsEnums;

import android.stats.location.LocationStatsEnums;

import android.util.Log;

import android.util.Log;





import com.android.internal.annotations.GuardedBy;

import com.android.server.location.gnss.GnssConfiguration.HalInterfaceVersion;

import com.android.server.location.gnss.GnssConfiguration.HalInterfaceVersion;

import com.android.server.location.gnss.hal.GnssNative;

import com.android.server.location.gnss.hal.GnssNative;

import com.android.server.location.injector.AppOpsHelper;

import com.android.server.location.injector.AppOpsHelper;
@@ -40,6 +42,8 @@ import com.android.server.location.injector.Injector; 
import com.android.server.location.injector.LocationUsageLogger;

import com.android.server.location.injector.LocationUsageLogger;

import com.android.server.location.injector.SettingsHelper;

import com.android.server.location.injector.SettingsHelper;





import java.io.FileDescriptor;

import java.io.PrintWriter;

import java.util.Collection;

import java.util.Collection;





/**

/**
@@ -91,6 +95,9 @@ public final class GnssMeasurementsProvider extends 
    private final LocationUsageLogger mLogger;

    private final LocationUsageLogger mLogger;

    private final GnssNative mGnssNative;

    private final GnssNative mGnssNative;





    @GuardedBy("mMultiplexerLock")

    private GnssMeasurementsEvent mLastGnssMeasurementsEvent;



    public GnssMeasurementsProvider(Injector injector, GnssNative gnssNative) {

    public GnssMeasurementsProvider(Injector injector, GnssNative gnssNative) {

        super(injector);

        super(injector);

        mAppOpsHelper = injector.getAppOpsHelper();

        mAppOpsHelper = injector.getAppOpsHelper();
@@ -264,5 +271,46 @@ public final class GnssMeasurementsProvider extends 
                return null;

                return null;

            }

            }

        });

        });

        synchronized (mMultiplexerLock) {

            mLastGnssMeasurementsEvent = event;

        }

    }



    @Override

    public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {

        super.dump(fd, pw, args);

        pw.print("last measurements=");

        pw.println(getLastMeasurementEventSummary());

    }



    /**

     * Returns a string of GnssMeasurementsEvent summary including received time, satellite count

     * and average baseband C/No.

     */

    private String getLastMeasurementEventSummary() {

        synchronized (mMultiplexerLock) {

            if (mLastGnssMeasurementsEvent == null) {

                return null;

            }

            StringBuilder builder = new StringBuilder("[");

            builder.append("elapsedRealtimeNs=").append(

                    mLastGnssMeasurementsEvent.getClock().getElapsedRealtimeNanos());

            builder.append(" measurementCount=").append(

                    mLastGnssMeasurementsEvent.getMeasurements().size());



            float sumBasebandCn0 = 0;

            int countBasebandCn0 = 0;

            for (GnssMeasurement measurement : mLastGnssMeasurementsEvent.getMeasurements()) {

                if (measurement.hasBasebandCn0DbHz()) {

                    sumBasebandCn0 += measurement.getBasebandCn0DbHz();

                    countBasebandCn0++;

                }

            }

            if (countBasebandCn0 > 0) {

                builder.append(" avgBasebandCn0=").append(sumBasebandCn0 / countBasebandCn0);

            }

            builder.append("]");

            return builder.toString();

        }

    }

    }

}
 
}