Add location backed system clock (f113333b) · Commits · e / os / android_frameworks_base

api/current.txt

+1 −0

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		@@ -35419,6 +35419,7 @@ package android.os {
		}

		public final class SystemClock {
		method @NonNull public static java.time.Clock currentGnssTimeClock();
		method public static long currentThreadTimeMillis();
		method public static long elapsedRealtime();
		method public static long elapsedRealtimeNanos();

core/java/android/os/SystemClock.java

+31 −0

Original line number	Diff line number	Diff line
		@@ -19,6 +19,8 @@ package android.os;
		import android.annotation.NonNull;
		import android.app.IAlarmManager;
		import android.content.Context;
		import android.location.ILocationManager;
		import android.location.LocationTime;
		import android.util.Slog;

		import dalvik.annotation.optimization.CriticalNative;
		@@ -313,4 +315,33 @@ public final class SystemClock {
		}
		};
		}

		/**
		* Returns a {@link Clock} that starts at January 1, 1970 00:00:00.0 UTC,
		* synchronized using the device's location provider.
		*
		* @throws DateTimeException when the location provider has not had a location fix since boot.
		*/
		public static @NonNull Clock currentGnssTimeClock() {
		return new SimpleClock(ZoneOffset.UTC) {
		private final ILocationManager mMgr = ILocationManager.Stub
		.asInterface(ServiceManager.getService(Context.LOCATION_SERVICE));
		@Override
		public long millis() {
		LocationTime time;
		try {
		time = mMgr.getGnssTimeMillis();
		} catch (RemoteException e) {
		e.rethrowFromSystemServer();
		return 0;
		}
		if (time == null) {
		throw new DateTimeException("Gnss based time is not available.");
		}
		long currentNanos = elapsedRealtimeNanos();
		long deltaMs = (currentNanos - time.getElapsedRealtimeNanos()) / 1000000L;
		return time.getTime() + deltaMs;
		}
		};
		}
		}

location/java/android/location/ILocationManager.aidl

+2 −0

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		@@ -29,6 +29,7 @@ import android.location.IGnssNavigationMessageListener;
		import android.location.ILocationListener;
		import android.location.Location;
		import android.location.LocationRequest;
		import android.location.LocationTime;
		import android.os.Bundle;

		import com.android.internal.location.ProviderProperties;
		@@ -104,6 +105,7 @@ interface ILocationManager
		void setTestProviderLocation(String provider, in Location loc, String opPackageName);
		void setTestProviderEnabled(String provider, boolean enabled, String opPackageName);
		List<LocationRequest> getTestProviderCurrentRequests(String provider, String opPackageName);
		LocationTime getGnssTimeMillis();

		// --- deprecated ---
		void setTestProviderStatus(String provider, int status, in Bundle extras, long updateTime,

location/java/android/location/LocationTime.aidl

0 → 100644

+19 −0

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		/*
		* Copyright (C) 2019, 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 android.location;

		parcelable LocationTime;

location/java/android/location/LocationTime.java

0 → 100644

+73 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2019 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 android.location;

		import android.annotation.NonNull;
		import android.os.Parcel;
		import android.os.Parcelable;

		/**
		* Data class for passing location derived time.
		* @hide
		*/
		public final class LocationTime implements Parcelable {

		private final long mTime;
		private final long mElapsedRealtimeNanos;

		public LocationTime(long time, long elapsedRealtimeNanos) {
		mTime = time;
		mElapsedRealtimeNanos = elapsedRealtimeNanos;
		}

		/**
		* The current time, according to the Gnss location provider. */
		public long getTime() {
		return mTime;
		}

		/**
		* The elapsed nanos since boot {@link #getTime} was computed at.
		*/
		public long getElapsedRealtimeNanos() {
		return mElapsedRealtimeNanos;
		}

		@Override
		public void writeToParcel(Parcel out, int flags) {
		out.writeLong(mTime);
		out.writeLong(mElapsedRealtimeNanos);
		}

		@Override
		public int describeContents() {
		return 0;
		}

		public static final @NonNull Parcelable.Creator<LocationTime> CREATOR =
		new Parcelable.Creator<LocationTime>() {
		public LocationTime createFromParcel(Parcel in) {
		long time = in.readLong();
		long elapsedRealtimeNanos = in.readLong();
		return new LocationTime(time, elapsedRealtimeNanos);
		}

		public LocationTime[] newArray(int size) {
		return new LocationTime[size];
		}
		};
		}