Merge "Periodic sync and PAST implementation" am: 0a91622046 am: e90c9f8652 (c808a4e4) · Commits · e / os / android_packages_modules_Bluetooth

android/app/jni/com_android_bluetooth_gatt.cpp

+56 −6

Original line number	Diff line number	Diff line
		@@ -184,7 +184,7 @@ static jmethodID method_onPeriodicAdvertisingEnabled;
		static jmethodID method_onSyncLost;
		static jmethodID method_onSyncReport;
		static jmethodID method_onSyncStarted;

		static jmethodID method_onSyncTransferredCallback;
		/**
		* Static variables
		*/
		@@ -2230,6 +2230,8 @@ static void periodicScanClassInitNative(JNIEnv* env, jclass clazz) {
		env->GetMethodID(clazz, "onSyncStarted", "(IIIILjava/lang/String;III)V");
		method_onSyncReport = env->GetMethodID(clazz, "onSyncReport", "(IIII[B)V");
		method_onSyncLost = env->GetMethodID(clazz, "onSyncLost", "(I)V");
		method_onSyncTransferredCallback = env->GetMethodID(
		clazz, "onSyncTransferredCallback", "(IILjava/lang/String;)V");
		}

		static void periodicScanInitializeNative(JNIEnv* env, jobject object) {
		@@ -2254,10 +2256,16 @@ static void onSyncStarted(int reg_id, uint8_t status, uint16_t sync_handle,
		uint8_t phy, uint16_t interval) {
		CallbackEnv sCallbackEnv(__func__);
		if (!sCallbackEnv.valid()) return;
		if (!mPeriodicScanCallbacksObj) {
		ALOGE("mPeriodicScanCallbacksObj is NULL. Return.");
		return;
		}
		ScopedLocalRef<jstring> addr(sCallbackEnv.get(),
		bdaddr2newjstr(sCallbackEnv.get(), &address));

		sCallbackEnv->CallVoidMethod(mPeriodicScanCallbacksObj, method_onSyncStarted,
		reg_id, sync_handle, sid, address_type, address,
		phy, interval, status);
		reg_id, sync_handle, sid, address_type,
		addr.get(), phy, interval, status);
		}

		static void onSyncReport(uint16_t sync_handle, int8_t tx_power, int8_t rssi,
		@@ -2287,19 +2295,56 @@ static void startSyncNative(JNIEnv* env, jobject object, jint sid,
		jstring address, jint skip, jint timeout,
		jint reg_id) {
		if (!sGattIf) return;

		sGattIf->scanner->StartSync(sid, str2addr(env, address), skip, timeout,
		base::Bind(&onSyncStarted, reg_id),
		base::Bind(&onSyncReport),
		base::Bind(&onSyncLost));
		}

		static void stopSyncNative(int sync_handle) {
		static void stopSyncNative(JNIEnv* env, jobject object, jint sync_handle) {
		if (!sGattIf) return;

		sGattIf->scanner->StopSync(sync_handle);
		}

		static void cancelSyncNative(JNIEnv* env, jobject object, jint sid,
		jstring address) {
		if (!sGattIf) return;
		sGattIf->scanner->CancelCreateSync(sid, str2addr(env, address));
		}

		static void onSyncTransferredCb(int pa_source, uint8_t status,
		RawAddress address) {
		CallbackEnv sCallbackEnv(__func__);
		if (!sCallbackEnv.valid()) return;
		if (!mPeriodicScanCallbacksObj) {
		ALOGE("mPeriodicScanCallbacksObj is NULL. Return.");
		return;
		}
		ScopedLocalRef<jstring> addr(sCallbackEnv.get(),
		bdaddr2newjstr(sCallbackEnv.get(), &address));

		sCallbackEnv->CallVoidMethod(mPeriodicScanCallbacksObj,
		method_onSyncTransferredCallback, pa_source,
		status, addr.get());
		}

		static void syncTransferNative(JNIEnv* env, jobject object, jint pa_source,
		jstring addr, jint service_data,
		jint sync_handle) {
		if (!sGattIf) return;
		sGattIf->scanner->TransferSync(str2addr(env, addr), service_data, sync_handle,
		base::Bind(&onSyncTransferredCb, pa_source));
		}

		static void transferSetInfoNative(JNIEnv* env, jobject object, jint pa_source,
		jstring addr, jint service_data,
		jint adv_handle) {
		if (!sGattIf) return;
		sGattIf->scanner->TransferSetInfo(
		str2addr(env, addr), service_data, adv_handle,
		base::Bind(&onSyncTransferredCb, pa_source));
		}

		static void gattTestNative(JNIEnv* env, jobject object, jint command,
		jlong uuid1_lsb, jlong uuid1_msb, jstring bda1,
		jint p1, jint p2, jint p3, jint p4, jint p5) {
		@@ -2358,6 +2403,11 @@ static JNINativeMethod sPeriodicScanMethods[] = {
		{"cleanupNative", "()V", (void*)periodicScanCleanupNative},
		{"startSyncNative", "(ILjava/lang/String;III)V", (void*)startSyncNative},
		{"stopSyncNative", "(I)V", (void*)stopSyncNative},
		{"cancelSyncNative", "(ILjava/lang/String;)V", (void*)cancelSyncNative},
		{"syncTransferNative", "(ILjava/lang/String;II)V",
		(void*)syncTransferNative},
		{"transferSetInfoNative", "(ILjava/lang/String;II)V",
		(void*)transferSetInfoNative},
		};

		// JNI functions defined in ScanManager class.

android/app/src/com/android/bluetooth/gatt/GattService.java

+40 −1

Original line number	Diff line number	Diff line
		@@ -1088,12 +1088,32 @@ public class GattService extends ProfileService {
		}

		@Override
		public void unregisterSync(
		public void transferSync(BluetoothDevice bda, int serviceData , int syncHandle,
		AttributionSource attributionSource) {
		GattService service = getService();
		if (service == null) {
		return;
		}
		service.transferSync(bda, serviceData , syncHandle, attributionSource);
		}

		@Override
		public void transferSetInfo(BluetoothDevice bda, int serviceData , int advHandle,
		IPeriodicAdvertisingCallback callback, AttributionSource attributionSource) {
		GattService service = getService();
		if (service == null) {
		return;
		}
		service.transferSetInfo(bda, serviceData , advHandle, callback, attributionSource);
		}

		@Override
		public void unregisterSync(IPeriodicAdvertisingCallback callback,
		AttributionSource attributionSource) {
		GattService service = getService();
		if (service == null) {
		return;
		}
		service.unregisterSync(callback, attributionSource);
		}

		@@ -2621,6 +2641,25 @@ public class GattService extends ProfileService {
		mPeriodicScanManager.stopSync(callback);
		}

		void transferSync(BluetoothDevice bda, int serviceData, int syncHandle,
		AttributionSource attributionSource) {
		if (!Utils.checkScanPermissionForDataDelivery(
		this, attributionSource, "GattService transferSync")) {
		return;
		}
		mPeriodicScanManager.transferSync(bda, serviceData, syncHandle);
		}

		void transferSetInfo(BluetoothDevice bda, int serviceData,
		int advHandle, IPeriodicAdvertisingCallback callback,
		AttributionSource attributionSource) {
		if (!Utils.checkScanPermissionForDataDelivery(
		this, attributionSource, "GattService transferSetInfo")) {
		return;
		}
		mPeriodicScanManager.transferSetInfo(bda, serviceData, advHandle, callback);
		}

		/**************************************************************************
		* ADVERTISING SET
		*************************************************************************/

android/app/src/com/android/bluetooth/gatt/PeriodicScanManager.java

+209 −40

Original line number	Diff line number	Diff line
		@@ -16,6 +16,8 @@

		package com.android.bluetooth.gatt;

		import android.bluetooth.BluetoothAdapter;
		import android.bluetooth.BluetoothDevice;
		import android.bluetooth.le.IPeriodicAdvertisingCallback;
		import android.bluetooth.le.PeriodicAdvertisingReport;
		import android.bluetooth.le.ScanRecord;
		@@ -30,6 +32,7 @@ import com.android.bluetooth.btservice.AdapterService;
		import java.util.Collections;
		import java.util.HashMap;
		import java.util.Map;
		import java.util.concurrent.ConcurrentHashMap;

		/**
		* Manages Bluetooth LE Periodic scans
		@@ -40,10 +43,12 @@ class PeriodicScanManager {
		private static final boolean DBG = GattServiceConfig.DBG;
		private static final String TAG = GattServiceConfig.TAG_PREFIX + "SyncManager";

		private final AdapterService mAdapterService;
		Map<IBinder, SyncInfo> mSyncs = Collections.synchronizedMap(new HashMap<>());
		private final BluetoothAdapter mAdapter;
		Map<IBinder, SyncInfo> mSyncs = new ConcurrentHashMap<>();
		Map<IBinder, SyncTransferInfo> mSyncTransfers = Collections.synchronizedMap(new HashMap<>());
		static int sTempRegistrationId = -1;

		private static final int PA_SOURCE_LOCAL = 1;
		private static final int PA_SOURCE_REMOTE = 2;
		/**
		* Constructor of {@link SyncManager}.
		*/
		@@ -51,7 +56,7 @@ class PeriodicScanManager {
		if (DBG) {
		Log.d(TAG, "advertise manager created");
		}
		mAdapterService = adapterService;
		mAdapter = BluetoothAdapter.getDefaultAdapter();
		}

		void start() {
		@@ -67,21 +72,52 @@ class PeriodicScanManager {
		sTempRegistrationId = -1;
		}

		class SyncTransferInfo {
		public String address;
		public SyncDeathRecipient deathRecipient;
		public IPeriodicAdvertisingCallback callback;

		SyncTransferInfo(String address, IPeriodicAdvertisingCallback callback) {
		this.address = address;
		this.callback = callback;
		}
		}

		class SyncInfo {
		/* When id is negative, the registration is ongoing. When the registration finishes, id
		* becomes equal to sync_handle */
		public Integer id;
		public Integer advSid;
		public String address;
		public Integer skip;
		public Integer timeout;
		public SyncDeathRecipient deathRecipient;
		public IPeriodicAdvertisingCallback callback;

		SyncInfo(Integer id, SyncDeathRecipient deathRecipient,
		SyncInfo(Integer id, Integer advSid, String address, Integer skip, Integer timeout,
		SyncDeathRecipient deathRecipient,
		IPeriodicAdvertisingCallback callback) {
		this.id = id;
		this.advSid = advSid;
		this.address = address;
		this.skip = skip;
		this.timeout = timeout;
		this.deathRecipient = deathRecipient;
		this.callback = callback;
		}
		}

		Map.Entry<IBinder, SyncTransferInfo> findSyncTransfer(String address) {
		Map.Entry<IBinder, SyncTransferInfo> entry = null;
		for (Map.Entry<IBinder, SyncTransferInfo> e : mSyncTransfers.entrySet()) {
		if (e.getValue().address.equals(address)) {
		entry = e;
		break;
		}
		}
		return entry;
		}

		IBinder toBinder(IPeriodicAdvertisingCallback e) {
		return ((IInterface) e).asBinder();
		}
		@@ -113,6 +149,33 @@ class PeriodicScanManager {
		return entry;
		}

		Map.Entry<IBinder, SyncInfo> findMatchingSync(int advSid, String address) {
		Map.Entry<IBinder, SyncInfo> entry = null;
		for (Map.Entry<IBinder, SyncInfo> e : mSyncs.entrySet()) {
		if (e.getValue().advSid == advSid && e.getValue().address.equals(address)) {
		return entry = e;
		}
		}
		return entry;
		}

		Map<IBinder, SyncInfo> findAllSync(int syncHandle) {
		Map<IBinder, SyncInfo> syncMap = new HashMap<IBinder, SyncInfo>();
		for (Map.Entry<IBinder, SyncInfo> e : mSyncs.entrySet()) {
		if (e.getValue().id != syncHandle) {
		continue;
		}
		syncMap.put(e.getKey(), new SyncInfo(e.getValue().id,
		e.getValue().advSid,
		e.getValue().address,
		e.getValue().skip,
		e.getValue().timeout,
		e.getValue().deathRecipient,
		e.getValue().callback));
		}
		return syncMap;
		}

		void onSyncStarted(int regId, int syncHandle, int sid, int addressType, String address, int phy,
		int interval, int status) throws Exception {
		if (DBG) {
		@@ -120,26 +183,37 @@ class PeriodicScanManager {
		"onSyncStarted() - regId=" + regId + ", syncHandle=" + syncHandle + ", status="
		+ status);
		}

		Map.Entry<IBinder, SyncInfo> entry = findSync(regId);
		if (entry == null) {
		Log.i(TAG, "onSyncStarted() - no callback found for regId " + regId);
		// Sync was stopped before it was properly registered.
		Map<IBinder, SyncInfo> syncMap = findAllSync(regId);
		if (syncMap.size() == 0) {
		Log.d(TAG, "onSyncStarted() - no callback found for regId " + regId);
		stopSyncNative(syncHandle);
		return;
		}

		IPeriodicAdvertisingCallback callback = entry.getValue().callback;
		synchronized (mSyncs) {
		for (Map.Entry<IBinder, SyncInfo> e : mSyncs.entrySet()) {
		if (e.getValue().id != regId) {
		continue;
		}
		IPeriodicAdvertisingCallback callback = e.getValue().callback;
		if (status == 0) {
		entry.setValue(new SyncInfo(syncHandle, entry.getValue().deathRecipient, callback));
		Log.d(TAG, "onSyncStarted: updating id with syncHandle " + syncHandle);
		e.setValue(new SyncInfo(syncHandle, sid, address, e.getValue().skip,
		e.getValue().timeout, e.getValue().deathRecipient,
		callback));
		callback.onSyncEstablished(syncHandle, mAdapter.getRemoteDevice(address),
		sid, e.getValue().skip, e.getValue().timeout,
		status);
		} else {
		IBinder binder = entry.getKey();
		binder.unlinkToDeath(entry.getValue().deathRecipient, 0);
		callback.onSyncEstablished(syncHandle, mAdapter.getRemoteDevice(address),
		sid, e.getValue().skip, e.getValue().timeout,
		status);
		IBinder binder = e.getKey();
		binder.unlinkToDeath(e.getValue().deathRecipient, 0);
		mSyncs.remove(binder);
		}

		// TODO: fix callback arguments
		// callback.onSyncStarted(syncHandle, tx_power, status);
		}
		}
		}

		void onSyncReport(int syncHandle, int txPower, int rssi, int dataStatus, byte[] data)
		@@ -148,33 +222,38 @@ class PeriodicScanManager {
		Log.d(TAG, "onSyncReport() - syncHandle=" + syncHandle);
		}

		Map.Entry<IBinder, SyncInfo> entry = findSync(syncHandle);
		if (entry == null) {
		Map<IBinder, SyncInfo> syncMap = findAllSync(syncHandle);
		if (syncMap.isEmpty()) {
		Log.i(TAG, "onSyncReport() - no callback found for syncHandle " + syncHandle);
		return;
		}

		IPeriodicAdvertisingCallback callback = entry.getValue().callback;
		for (Map.Entry<IBinder, SyncInfo> e :syncMap.entrySet()) {
		IPeriodicAdvertisingCallback callback = e.getValue().callback;
		PeriodicAdvertisingReport report =
		new PeriodicAdvertisingReport(syncHandle, txPower, rssi, dataStatus,
		ScanRecord.parseFromBytes(data));
		callback.onPeriodicAdvertisingReport(report);
		}
		}

		void onSyncLost(int syncHandle) throws Exception {
		if (DBG) {
		Log.d(TAG, "onSyncLost() - syncHandle=" + syncHandle);
		}

		Map.Entry<IBinder, SyncInfo> entry = findSync(syncHandle);
		if (entry == null) {
		Map<IBinder, SyncInfo> syncMap = findAllSync(syncHandle);
		if (syncMap.isEmpty()) {
		Log.i(TAG, "onSyncLost() - no callback found for syncHandle " + syncHandle);
		return;
		}

		IPeriodicAdvertisingCallback callback = entry.getValue().callback;
		mSyncs.remove(entry);
		for (Map.Entry<IBinder, SyncInfo> e :syncMap.entrySet()) {
		IPeriodicAdvertisingCallback callback = e.getValue().callback;
		IBinder binder = toBinder(callback);
		synchronized (mSyncs) {
		mSyncs.remove(binder);
		}
		callback.onSyncLost(syncHandle);

		}
		}

		void startSync(ScanResult scanResult, int skip, int timeout,
		@@ -189,9 +268,38 @@ class PeriodicScanManager {

		String address = scanResult.getDevice().getAddress();
		int sid = scanResult.getAdvertisingSid();
		if (DBG) {
		Log.d(TAG, "startSync for Device: " + address + " sid: " + sid);
		}
		synchronized (mSyncs) {
		Map.Entry<IBinder, SyncInfo> entry = findMatchingSync(sid, address);
		if (entry != null) {
		//Found matching sync. Copy sync handle
		if (DBG) {
		Log.d(TAG, "startSync: Matching entry found");
		}
		mSyncs.put(binder, new SyncInfo(entry.getValue().id, sid, address,
		entry.getValue().skip, entry.getValue().timeout, deathRecipient,
		callback));
		if (entry.getValue().id >= 0) {
		try {
		callback.onSyncEstablished(entry.getValue().id,
		mAdapter.getRemoteDevice(address),
		sid, entry.getValue().skip,
		entry.getValue().timeout, 0 /success/);
		} catch (RemoteException e) {
		throw new IllegalArgumentException("Can't invoke callback");
		}
		} else {
		Log.d(TAG, "startSync(): sync pending for same remote");
		}
		return;
		}
		}

		int cbId = --sTempRegistrationId;
		mSyncs.put(binder, new SyncInfo(cbId, deathRecipient, callback));
		mSyncs.put(binder, new SyncInfo(cbId, sid, address, skip, timeout,
		deathRecipient, callback));

		if (DBG) {
		Log.d(TAG, "startSync() - reg_id=" + cbId + ", callback: " + binder);
		@@ -204,8 +312,10 @@ class PeriodicScanManager {
		if (DBG) {
		Log.d(TAG, "stopSync() " + binder);
		}

		SyncInfo sync = mSyncs.remove(binder);
		SyncInfo sync = null;
		synchronized (mSyncs) {
		sync = mSyncs.remove(binder);
		}
		if (sync == null) {
		Log.e(TAG, "stopSync() - no client found for callback");
		return;
		@@ -213,14 +323,65 @@ class PeriodicScanManager {

		Integer syncHandle = sync.id;
		binder.unlinkToDeath(sync.deathRecipient, 0);
		Log.d(TAG, "stopSync: " + syncHandle);

		synchronized (mSyncs) {
		Map.Entry<IBinder, SyncInfo> entry = findSync(syncHandle);
		if (entry != null) {
		Log.d(TAG, "stopSync() - another app synced to same PA, not stopping sync");
		return;
		}
		}
		Log.d(TAG, "calling stopSyncNative: " + syncHandle.intValue());
		if (syncHandle < 0) {
		Log.i(TAG, "stopSync() - not finished registration yet");
		// Sync will be freed once initiated in onSyncStarted()
		Log.i(TAG, "cancelSync() - sync not established yet");
		cancelSyncNative(sync.advSid, sync.address);
		} else {
		stopSyncNative(syncHandle.intValue());
		}
		}

		void onSyncTransferredCallback(int paSource, int status, String bda) {
		Log.d(TAG, "onSyncTransferredCallback()");
		Map.Entry<IBinder, SyncTransferInfo> entry = findSyncTransfer(bda);
		if (entry != null) {
		mSyncTransfers.remove(entry);
		IPeriodicAdvertisingCallback callback = entry.getValue().callback;
		try {
		callback.onSyncTransferred(mAdapter.getRemoteDevice(bda), status);
		} catch (RemoteException e) {
		throw new IllegalArgumentException("Can't find callback for sync transfer");
		}
		}
		}

		void transferSync(BluetoothDevice bda, int serviceData, int syncHandle) {
		Log.d(TAG, "transferSync()");
		Map.Entry<IBinder, SyncInfo> entry = findSync(syncHandle);
		if (entry == null) {
		Log.d(TAG, "transferSync: callback not registered");
		return;
		}
		//check for duplicate transfers
		mSyncTransfers.put(entry.getKey(), new SyncTransferInfo(bda.getAddress(),
		entry.getValue().callback));
		syncTransferNative(PA_SOURCE_REMOTE, bda.getAddress(), serviceData, syncHandle);
		}

		stopSyncNative(syncHandle);
		void transferSetInfo(BluetoothDevice bda, int serviceData,
		int advHandle, IPeriodicAdvertisingCallback callback) {
		SyncDeathRecipient deathRecipient = new SyncDeathRecipient(callback);
		IBinder binder = toBinder(callback);
		if (DBG) {
		Log.d(TAG, "transferSetInfo() " + binder);
		}
		try {
		binder.linkToDeath(deathRecipient, 0);
		} catch (RemoteException e) {
		throw new IllegalArgumentException("Can't link to periodic scanner death");
		}
		mSyncTransfers.put(binder, new SyncTransferInfo(bda.getAddress(), callback));
		transferSetInfoNative(PA_SOURCE_LOCAL, bda.getAddress(), serviceData, advHandle);
		}

		static {
		@@ -236,4 +397,12 @@ class PeriodicScanManager {
		private native void startSyncNative(int sid, String address, int skip, int timeout, int regId);

		private native void stopSyncNative(int syncHandle);

		private native void cancelSyncNative(int sid, String address);

		private native void syncTransferNative(int paSource, String address, int serviceData,
		int syncHandle);

		private native void transferSetInfoNative(int paSource, String address, int serviceData,
		int advHandle);
		}

framework/java/android/bluetooth/le/PeriodicAdvertisingCallback.java

+9 −0

Original line number	Diff line number	Diff line
		@@ -78,4 +78,13 @@ public abstract class PeriodicAdvertisingCallback {
		*/
		public void onSyncLost(int syncHandle) {
		}

		/**
		* Callback when periodic sync transferred.
		*
		* @param device
		* @param status
		*/
		public void onSyncTransferred(BluetoothDevice device, int status) {
		}
		}

framework/java/android/bluetooth/le/PeriodicAdvertisingManager.java

+83 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@

		package android.bluetooth.le;

		import android.annotation.Nullable;
		import android.annotation.RequiresPermission;
		import android.annotation.SuppressLint;
		import android.bluetooth.Attributable;
		@@ -215,6 +216,79 @@ public final class PeriodicAdvertisingManager {
		}
		}

		/**
		* Transfer periodic sync
		*
		* @hide
		*/
		public void transferSync(BluetoothDevice bda, int serviceData, int syncHandle) {
		IBluetoothGatt gatt;
		try {
		gatt = mBluetoothManager.getBluetoothGatt();
		} catch (RemoteException e) {
		Log.e(TAG, "Failed to get Bluetooth gatt - ", e);
		PeriodicAdvertisingCallback callback = null;
		for (PeriodicAdvertisingCallback cb : mCallbackWrappers.keySet()) {
		callback = cb;
		}
		if (callback != null) {
		callback.onSyncTransferred(bda,
		PeriodicAdvertisingCallback.SYNC_NO_RESOURCES);
		}
		return;
		}
		try {
		gatt.transferSync(bda, serviceData , syncHandle, mAttributionSource);
		} catch (RemoteException e) {
		Log.e(TAG, "Failed to register sync - ", e);
		return;
		}
		}

		/**
		* Transfer set info
		*
		* @hide
		*/
		public void transferSetInfo(BluetoothDevice bda, int serviceData,
		int advHandle, PeriodicAdvertisingCallback callback) {
		transferSetInfo(bda, serviceData, advHandle, callback, null);
		}

		/**
		* Transfer set info
		*
		* @hide
		*/
		public void transferSetInfo(BluetoothDevice bda, int serviceData,
		int advHandle, PeriodicAdvertisingCallback callback,
		@Nullable Handler handler) {
		if (callback == null) {
		throw new IllegalArgumentException("callback can't be null");
		}
		IBluetoothGatt gatt;
		try {
		gatt = mBluetoothManager.getBluetoothGatt();
		} catch (RemoteException e) {
		Log.e(TAG, "Failed to get Bluetooth gatt - ", e);
		return;
		}
		if (handler == null) {
		handler = new Handler(Looper.getMainLooper());
		}
		IPeriodicAdvertisingCallback wrapper = wrap(callback, handler);
		if (wrapper == null) {
		throw new IllegalArgumentException("callback was not properly registered");
		}
		try {
		gatt.transferSetInfo(bda, serviceData , advHandle, wrapper, mAttributionSource);
		} catch (RemoteException e) {
		Log.e(TAG, "Failed to register sync - ", e);
		return;
		}

		}

		@SuppressLint("AndroidFrameworkBluetoothPermission")
		private IPeriodicAdvertisingCallback wrap(PeriodicAdvertisingCallback callback,
		Handler handler) {
		@@ -259,6 +333,15 @@ public final class PeriodicAdvertisingManager {
		}
		});
		}

		public void onSyncTransferred(BluetoothDevice device, int status) {
		handler.post(new Runnable() {
		@Override
		public void run() {
		callback.onSyncTransferred(device, status);
		}
		});
		}
		};
		}
		}