Stops BLE scan when scan only mode is disabled. (e4a744b6) · Commits · e / os / android_frameworks_base

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

+49 −17

Original line number	Diff line number	Diff line
		@@ -21,8 +21,8 @@ import android.app.ActivityManager;
		import android.bluetooth.BluetoothAdapter;
		import android.bluetooth.BluetoothProfile;
		import android.bluetooth.IBluetooth;
		import android.bluetooth.IBluetoothGatt;
		import android.bluetooth.IBluetoothCallback;
		import android.bluetooth.IBluetoothGatt;
		import android.bluetooth.IBluetoothHeadset;
		import android.bluetooth.IBluetoothManager;
		import android.bluetooth.IBluetoothManagerCallback;
		@@ -37,6 +37,7 @@ import android.content.IntentFilter;
		import android.content.ServiceConnection;
		import android.content.pm.PackageManager;
		import android.content.pm.UserInfo;
		import android.database.ContentObserver;
		import android.os.Binder;
		import android.os.Handler;
		import android.os.IBinder;
		@@ -56,11 +57,8 @@ import android.util.Log;
		import java.io.FileDescriptor;
		import java.io.IOException;
		import java.io.PrintWriter;

		import java.util.HashMap;
		import java.util.Map;

		import java.util.*;
		class BluetoothManagerService extends IBluetoothManager.Stub {
		private static final String TAG = "BluetoothManagerService";
		private static final boolean DBG = true;
		@@ -259,6 +257,8 @@ class BluetoothManagerService extends IBluetoothManager.Stub {
		mName = null;
		mErrorRecoveryRetryCounter = 0;
		mContentResolver = context.getContentResolver();
		// Observe BLE scan only mode settings change.
		registerForBleScanModeChange();
		mCallbacks = new RemoteCallbackList<IBluetoothManagerCallback>();
		mStateChangeCallbacks = new RemoteCallbackList<IBluetoothStateChangeCallback>();
		IntentFilter filter = new IntentFilter(Intent.ACTION_BOOT_COMPLETED);
		@@ -458,6 +458,40 @@ class BluetoothManagerService extends IBluetoothManager.Stub {
		return false;
		}

		// Monitor change of BLE scan only mode settings.
		private void registerForBleScanModeChange() {
		ContentObserver contentObserver = new ContentObserver(null) {
		@Override
		public void onChange(boolean selfChange) {
		if (!isBleScanAlwaysAvailable()) {
		disableBleScanMode();
		clearBleApps();
		try {
		if (mBluetooth != null) mBluetooth.onBrEdrDown();
		} catch (RemoteException e) {
		Log.e(TAG, "error when disabling bluetooth", e);
		}
		}
		}
		};

		mContentResolver.registerContentObserver(
		Settings.Global.getUriFor(Settings.Global.BLE_SCAN_ALWAYS_AVAILABLE),
		false, contentObserver);
		}

		// Disable ble scan only mode.
		private void disableBleScanMode() {
		try {
		if (mBluetooth != null && (mBluetooth.getState() != BluetoothAdapter.STATE_ON)) {
		if (DBG) Log.d(TAG, "Reseting the mEnable flag for clean disable");
		mEnable = false;
		}
		} catch (RemoteException e) {
		Log.e(TAG, "getState()", e);
		}
		}

		public int updateBleAppCount(IBinder token, boolean enable) {
		if (enable) {
		ClientDeathRecipient r = mBleApps.get(token);
		@@ -478,11 +512,8 @@ class BluetoothManagerService extends IBluetoothManager.Stub {
		} else {
		ClientDeathRecipient r = mBleApps.get(token);
		if (r != null) {
		try {
		token.linkToDeath(r, 0);
		} catch (RemoteException ex) {
		throw new IllegalArgumentException("Wake lock is already dead.");
		}
		// Unregister death recipient as the app goes away.
		token.unlinkToDeath(r, 0);
		mBleApps.remove(token);
		synchronized (this) {
		if (mBleAppCount > 0) --mBleAppCount;
		@@ -492,16 +523,17 @@ class BluetoothManagerService extends IBluetoothManager.Stub {
		}
		if (DBG) Log.d(TAG, "Updated BleAppCount" + mBleAppCount);
		if (mBleAppCount == 0 && mEnable) {
		try {
		if (mBluetooth != null && (mBluetooth.getState() != BluetoothAdapter.STATE_ON)) {
		if (DBG) Log.d(TAG, "Reseting the mEnable flag for clean disable");
		mEnable = false;
		disableBleScanMode();
		}
		} catch (RemoteException e) {
		Log.e(TAG, "getState()", e);
		return mBleAppCount;
		}

		// Clear all apps using BLE scan only mode.
		private void clearBleApps() {
		synchronized (this) {
		mBleApps.clear();
		mBleAppCount = 0;
		}
		return mBleAppCount;
		}

		/** @hide*/