Pipe requestSetProviderAllowed through (17d8c838) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/LocationManagerService.java

+2 −2

Original line number	Diff line number	Diff line
		@@ -649,7 +649,7 @@ public class LocationManagerService extends ILocationManager.Stub {
		mEnabled = new SparseArray<>(1);

		// initialize last since this lets our reference escape
		mProvider = new MockableLocationProvider(mContext, mLock, this);
		mProvider = new MockableLocationProvider(mLock, this);

		// we can assume all users start with disabled location state since the initial state
		// of all providers is disabled. no need to initialize mEnabled further.
		@@ -2699,7 +2699,7 @@ public class LocationManagerService extends ILocationManager.Stub {
		mProviderManagers.add(manager);
		}

		manager.setMockProvider(new MockProvider(mContext, properties));
		manager.setMockProvider(new MockProvider(properties));
		}
		}

services/core/java/com/android/server/location/AbstractLocationProvider.java

+8 −11

Original line number	Diff line number	Diff line
		@@ -177,7 +177,6 @@ public abstract class AbstractLocationProvider {
		}
		}

		protected final Context mContext;
		protected final Executor mExecutor;

		// we use a lock-free implementation to update state to ensure atomicity between updating the
		@@ -186,13 +185,11 @@ public abstract class AbstractLocationProvider {
		// before it was set, and should not miss any updates that occur after it was set).
		private final AtomicReference<InternalState> mInternalState;

		protected AbstractLocationProvider(Context context, Executor executor) {
		this(context, executor, Collections.singleton(context.getPackageName()));
		protected AbstractLocationProvider(Executor executor, Context context) {
		this(executor, Collections.singleton(context.getPackageName()));
		}

		protected AbstractLocationProvider(Context context, Executor executor,
		Set<String> packageNames) {
		mContext = context;
		protected AbstractLocationProvider(Executor executor, Set<String> packageNames) {
		mExecutor = executor;
		mInternalState = new AtomicReference<>(
		new InternalState(null, State.EMPTY_STATE.withProviderPackageNames(packageNames)));
		@@ -202,7 +199,7 @@ public abstract class AbstractLocationProvider {
		* Sets the listener and returns the state at the moment the listener was set. The listener can
		* expect to receive all state updates from after this point.
		*/
		State setListener(@Nullable Listener listener) {
		protected State setListener(@Nullable Listener listener) {
		return mInternalState.updateAndGet(
		internalState -> internalState.withListener(listener)).state;
		}
		@@ -210,14 +207,14 @@ public abstract class AbstractLocationProvider {
		/**
		* Retrieves the state of the provider.
		*/
		State getState() {
		public State getState() {
		return mInternalState.get().state;
		}

		/**
		* Sets the state of the provider to the new state.
		*/
		void setState(State newState) {
		protected void setState(State newState) {
		InternalState oldInternalState = mInternalState.getAndUpdate(
		internalState -> internalState.withState(newState));
		if (newState.equals(oldInternalState.state)) {
		@@ -357,7 +354,7 @@ public abstract class AbstractLocationProvider {
		/**
		* Always invoked on the provider executor.
		*/
		protected void onExtraCommand(int uid, int pid, String command, Bundle extras) {}
		protected abstract void onExtraCommand(int uid, int pid, String command, Bundle extras);

		/**
		* Requests a provider to enable itself for the given user id.
		@@ -370,7 +367,7 @@ public abstract class AbstractLocationProvider {
		/**
		* Always invoked on the provider executor.
		*/
		protected void onRequestSetAllowed(boolean allowed) {}
		protected abstract void onRequestSetAllowed(boolean allowed);

		/**
		* Dumps debug or log information. May be invoked from any thread.

services/core/java/com/android/server/location/GnssLocationProvider.java

+8 −2

Original line number	Diff line number	Diff line
		@@ -408,7 +408,7 @@ public class GnssLocationProvider extends AbstractLocationProvider implements
		// Available only on GNSS HAL 2.0 implementations and later.
		private GnssVisibilityControl mGnssVisibilityControl;

		// Handler for processing events
		private final Context mContext;
		private Handler mHandler;

		private final GnssNetworkConnectivityHandler mNetworkConnectivityHandler;
		@@ -625,10 +625,11 @@ public class GnssLocationProvider extends AbstractLocationProvider implements
		}

		public GnssLocationProvider(Context context) {
		super(context, FgThread.getExecutor());
		super(FgThread.getExecutor(), context);

		ensureInitialized();

		mContext = context;
		mLooper = FgThread.getHandler().getLooper();

		// Create a wake lock
		@@ -1212,6 +1213,11 @@ public class GnssLocationProvider extends AbstractLocationProvider implements
		}
		}

		@Override
		protected void onRequestSetAllowed(boolean allowed) {
		// do nothing - the gnss provider is always allowed
		}

		private void deleteAidingData(Bundle extras) {
		int flags;

services/core/java/com/android/server/location/LocationProviderProxy.java

+5 −3

Original line number	Diff line number	Diff line
		@@ -134,6 +134,7 @@ public class LocationProviderProxy extends AbstractLocationProvider {
		// also used to synchronized any state changes (setEnabled, setProperties, setState, etc)
		private final Object mLock = new Object();

		private final Context mContext;
		private final ServiceWatcher mServiceWatcher;

		@GuardedBy("mLock")
		@@ -143,10 +144,11 @@ public class LocationProviderProxy extends AbstractLocationProvider {

		private LocationProviderProxy(Context context, String action, int enableOverlayResId,
		int nonOverlayPackageResId) {
		// safe to use direct executor since none of our callbacks call back into any code above
		// this provider - they simply forward to the proxy service
		super(context, DIRECT_EXECUTOR);
		// safe to use direct executor even though this class has internal locks - all of our
		// callbacks go to oneway binder transactions which cannot possibly be re-entrant
		super(DIRECT_EXECUTOR, Collections.emptySet());

		mContext = context;
		mServiceWatcher = new ServiceWatcher(context, FgThread.getHandler(), action, this::onBind,
		this::onUnbind, enableOverlayResId, nonOverlayPackageResId);

services/core/java/com/android/server/location/MockProvider.java

+10 −5

Original line number	Diff line number	Diff line
		@@ -16,15 +16,18 @@

		package com.android.server.location;

		import static com.android.internal.util.ConcurrentUtils.DIRECT_EXECUTOR;

		import android.annotation.Nullable;
		import android.content.Context;
		import android.location.Location;
		import android.os.Bundle;

		import com.android.internal.location.ProviderProperties;
		import com.android.internal.location.ProviderRequest;

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

		/**
		* A mock location provider used by LocationManagerService to implement test providers.
		@@ -35,10 +38,9 @@ public class MockProvider extends AbstractLocationProvider {

		@Nullable private Location mLocation;

		public MockProvider(Context context, ProviderProperties properties) {
		// using a direct executor is only acceptable because this class is so simple it is trivial
		// to verify that it does not acquire any locks or re-enter LMS from callbacks
		super(context, Runnable::run);
		public MockProvider(ProviderProperties properties) {
		// using a direct executor is ok because this class has no locks that could deadlock
		super(DIRECT_EXECUTOR, Collections.emptySet());
		setProperties(properties);
		}

		@@ -58,6 +60,9 @@ public class MockProvider extends AbstractLocationProvider {
		@Override
		public void onSetRequest(ProviderRequest request) {}

		@Override
		protected void onExtraCommand(int uid, int pid, String command, Bundle extras) {}

		@Override
		protected void onRequestSetAllowed(boolean allowed) {
		setAllowed(allowed);