Merge "Log the last GnssMeasurementsEvent summary in dumpsys" into main (de0a2c47) · Commits · e / os / android_frameworks_base

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

+48 −0

Original line number	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.Nullable;
		import android.app.AppOpsManager;
		import android.location.GnssMeasurement;
		import android.location.GnssMeasurementRequest;
		import android.location.GnssMeasurementsEvent;
		import android.location.IGnssMeasurementsListener;
		@@ -33,6 +34,7 @@ import android.os.IBinder;
		import android.stats.location.LocationStatsEnums;
		import android.util.Log;

		import com.android.internal.annotations.GuardedBy;
		import com.android.server.location.gnss.GnssConfiguration.HalInterfaceVersion;
		import com.android.server.location.gnss.hal.GnssNative;
		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.SettingsHelper;

		import java.io.FileDescriptor;
		import java.io.PrintWriter;
		import java.util.Collection;

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

		@GuardedBy("mMultiplexerLock")
		private GnssMeasurementsEvent mLastGnssMeasurementsEvent;

		public GnssMeasurementsProvider(Injector injector, GnssNative gnssNative) {
		super(injector);
		mAppOpsHelper = injector.getAppOpsHelper();
		@@ -264,5 +271,46 @@ public final class GnssMeasurementsProvider extends
		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();
		}
		}
		}