data activity reporting on wifi (227bec49) · Commits · e / os / android_frameworks_base

core/java/android/net/TrafficStats.java

+37 −0

Original line number	Diff line number	Diff line
		@@ -68,6 +68,43 @@ public class TrafficStats {
		*/
		public static native long getMobileRxBytes();

		/**
		* Get the total number of packets transmitted through the specified interface.
		*
		* @return number of packets. If the statistics are not supported by this interface,
		* {@link #UNSUPPORTED} will be returned.
		* @hide
		*/
		public static native long getTxPackets(String iface);

		/**
		* Get the total number of packets received through the specified interface.
		*
		* @return number of packets. If the statistics are not supported by this interface,
		* {@link #UNSUPPORTED} will be returned.
		* @hide
		*/
		public static native long getRxPackets(String iface);

		/**
		* Get the total number of bytes transmitted through the specified interface.
		*
		* @return number of bytes. If the statistics are not supported by this interface,
		* {@link #UNSUPPORTED} will be returned.
		* @hide
		*/
		public static native long getTxBytes(String iface);

		/**
		* Get the total number of bytes received through the specified interface.
		*
		* @return number of bytes. If the statistics are not supported by this interface,
		* {@link #UNSUPPORTED} will be returned.
		* @hide
		*/
		public static native long getRxBytes(String iface);


		/**
		* Get the total number of packets sent through all network interfaces.
		*

core/jni/android_net_TrafficStats.cpp

+31 −0

Original line number	Diff line number	Diff line
		@@ -130,6 +130,33 @@ static jlong getMobileRxBytes(JNIEnv* env, jobject clazz) {
		"/sys/class/net/ppp0/statistics/rx_bytes");
		}

		static jlong getData(JNIEnv* env, char *what, jstring interface) {
		char filename[80];
		jboolean isCopy;

		const char *interfaceStr = env->GetStringUTFChars(interface, &isCopy);
		snprintf(filename, sizeof(filename), "/sys/class/net/%s/statistics/%s", interfaceStr, what);

		return readNumber(filename);
		}

		static jlong getTxPackets(JNIEnv* env, jobject clazz, jstring interface) {
		return getData(env, "tx_packets", interface);
		}

		static jlong getRxPackets(JNIEnv* env, jobject clazz, jstring interface) {
		return getData(env, "rx_packets", interface);
		}

		static jlong getTxBytes(JNIEnv* env, jobject clazz, jstring interface) {
		return getData(env, "tx_bytes", interface);
		}

		static jlong getRxBytes(JNIEnv* env, jobject clazz, jstring interface) {
		return getData(env, "rx_bytes", interface);
		}


		// Total stats are read less often, so we're willing to put up
		// with listing the directory and concatenating filenames.

		@@ -288,6 +315,10 @@ static JNINativeMethod gMethods[] = {
		{"getMobileRxPackets", "()J", (void*) getMobileRxPackets},
		{"getMobileTxBytes", "()J", (void*) getMobileTxBytes},
		{"getMobileRxBytes", "()J", (void*) getMobileRxBytes},
		{"getTxPackets", "(Ljava/lang/String;)J", (void*) getTxPackets},
		{"getRxPackets", "(Ljava/lang/String;)J", (void*) getRxPackets},
		{"getTxBytes", "(Ljava/lang/String;)J", (void*) getTxBytes},
		{"getRxBytes", "(Ljava/lang/String;)J", (void*) getRxBytes},
		{"getTotalTxPackets", "()J", (void*) getTotalTxPackets},
		{"getTotalRxPackets", "()J", (void*) getTotalRxPackets},
		{"getTotalTxBytes", "()J", (void*) getTotalTxBytes},

packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkController.java

+53 −0

Original line number	Diff line number	Diff line
		@@ -33,6 +33,11 @@ import android.net.wifi.WifiConfiguration;
		import android.net.wifi.WifiInfo;
		import android.net.wifi.WifiManager;
		import android.os.Binder;
		import android.os.Handler;
		import android.os.HandlerThread;
		import android.os.Looper;
		import android.os.Message;
		import android.os.Messenger;
		import android.os.RemoteException;
		import android.provider.Settings;
		import android.provider.Telephony;
		@@ -50,6 +55,7 @@ import com.android.internal.telephony.IccCard;
		import com.android.internal.telephony.TelephonyIntents;
		import com.android.internal.telephony.cdma.EriInfo;
		import com.android.server.am.BatteryStatsService;
		import com.android.internal.util.AsyncChannel;

		import com.android.systemui.R;

		@@ -82,6 +88,7 @@ public class NetworkController extends BroadcastReceiver {

		// wifi
		final WifiManager mWifiManager;
		AsyncChannel mWifiChannel;
		boolean mWifiEnabled, mWifiConnected;
		int mWifiLevel;
		String mWifiSsid;
		@@ -140,6 +147,14 @@ public class NetworkController extends BroadcastReceiver {

		// wifi
		mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
		HandlerThread handlerThread = new HandlerThread("WifiServiceThread");
		handlerThread.start();
		Handler handler = new WifiHandler(handlerThread.getLooper());
		mWifiChannel = new AsyncChannel();
		Messenger wifiMessenger = mWifiManager.getMessenger();
		if (wifiMessenger != null) {
		mWifiChannel.connect(mContext, handler, wifiMessenger);
		}

		// broadcasts
		IntentFilter filter = new IntentFilter();
		@@ -584,6 +599,44 @@ public class NetworkController extends BroadcastReceiver {

		// ===== Wifi ===================================================================

		class WifiHandler extends Handler {

		WifiHandler(Looper looper) {
		super(looper);
		}

		@Override
		public void handleMessage(Message msg) {
		switch (msg.what) {
		case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED:
		if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) {
		mWifiChannel.sendMessage(Message.obtain(this,
		AsyncChannel.CMD_CHANNEL_FULL_CONNECTION));
		} else {
		Slog.e(TAG, "Failed to connect to wifi");
		}
		break;
		case WifiManager.DATA_ACTIVITY_NOTIFICATION:
		int dataActivity = msg.arg1;
		/* TODO: update icons based on data activity */
		switch (dataActivity) {
		case WifiManager.DATA_ACTIVITY_IN:
		break;
		case WifiManager.DATA_ACTIVITY_OUT:
		break;
		case WifiManager.DATA_ACTIVITY_INOUT:
		break;
		case WifiManager.DATA_ACTIVITY_NONE:
		break;
		}
		break;
		default:
		//Ignore
		break;
		}
		}
		}

		private void updateWifiState(Intent intent) {
		final String action = intent.getAction();
		if (action.equals(WifiManager.WIFI_STATE_CHANGED_ACTION)) {

services/java/com/android/server/WifiService.java

+175 −38

Original line number	Diff line number	Diff line
		@@ -42,14 +42,18 @@ import android.net.ConnectivityManager;
		import android.net.DhcpInfo;
		import android.net.NetworkInfo;
		import android.net.NetworkInfo.State;
		import android.net.NetworkInfo.DetailedState;
		import android.net.TrafficStats;
		import android.os.Binder;
		import android.os.Handler;
		import android.os.Messenger;
		import android.os.HandlerThread;
		import android.os.IBinder;
		import android.os.INetworkManagementService;
		import android.os.Message;
		import android.os.RemoteException;
		import android.os.ServiceManager;
		import android.os.SystemProperties;
		import android.os.WorkSource;
		import android.provider.Settings;
		import android.text.TextUtils;
		@@ -111,6 +115,20 @@ public class WifiService extends IWifiManager.Stub {

		private final IBatteryStats mBatteryStats;

		private boolean mEnableTrafficStatsPoll = false;
		private int mTrafficStatsPollToken = 0;
		private long mTxPkts;
		private long mRxPkts;
		/* Tracks last reported data activity */
		private int mDataActivity;
		private String mInterfaceName;

		/**
		* Interval in milliseconds between polling for traffic
		* statistics
		*/
		private static final int POLL_TRAFFIC_STATS_INTERVAL_MSECS = 1000;

		/**
		* See {@link Settings.Secure#WIFI_IDLE_MS}. This is the default value if a
		* Settings.Secure value is not present. This timeout value is chosen as
		@@ -123,6 +141,9 @@ public class WifiService extends IWifiManager.Stub {
		private static final String ACTION_DEVICE_IDLE =
		"com.android.server.WifiManager.action.DEVICE_IDLE";

		private static final int CMD_ENABLE_TRAFFIC_STATS_POLL = 1;
		private static final int CMD_TRAFFIC_STATS_POLL = 2;

		private boolean mIsReceiverRegistered = false;


		@@ -180,18 +201,20 @@ public class WifiService extends IWifiManager.Stub {
		/**
		* Asynchronous channel to WifiStateMachine
		*/
		private AsyncChannel mChannel;
		private AsyncChannel mWifiStateMachineChannel;

		/**
		* TODO: Possibly change WifiService into an AsyncService.
		* Clients receiving asynchronous messages
		*/
		private class WifiServiceHandler extends Handler {
		private AsyncChannel mWshChannel;
		private List<AsyncChannel> mClients = new ArrayList<AsyncChannel>();

		WifiServiceHandler(android.os.Looper looper, Context context) {
		/**
		* Handles client connections
		*/
		private class AsyncServiceHandler extends Handler {

		AsyncServiceHandler(android.os.Looper looper) {
		super(looper);
		mWshChannel = new AsyncChannel();
		mWshChannel.connect(context, this, mWifiStateMachine.getHandler());
		}

		@Override
		@@ -199,11 +222,33 @@ public class WifiService extends IWifiManager.Stub {
		switch (msg.what) {
		case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: {
		if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) {
		mChannel = mWshChannel;
		Slog.d(TAG, "New client listening to asynchronous messages");
		mClients.add((AsyncChannel) msg.obj);
		} else {
		Slog.d(TAG, "WifiServicehandler.handleMessage could not connect error=" +
		msg.arg1);
		mChannel = null;
		Slog.e(TAG, "Client connection failure, error=" + msg.arg1);
		}
		break;
		}
		case AsyncChannel.CMD_CHANNEL_FULL_CONNECTION: {
		AsyncChannel ac = new AsyncChannel();
		ac.connect(mContext, this, msg.replyTo);
		break;
		}
		case CMD_ENABLE_TRAFFIC_STATS_POLL: {
		mEnableTrafficStatsPoll = (msg.arg1 == 1);
		mTrafficStatsPollToken++;
		if (mEnableTrafficStatsPoll) {
		notifyOnDataActivity();
		sendMessageDelayed(Message.obtain(this, CMD_TRAFFIC_STATS_POLL,
		mTrafficStatsPollToken, 0), POLL_TRAFFIC_STATS_INTERVAL_MSECS);
		}
		break;
		}
		case CMD_TRAFFIC_STATS_POLL: {
		if (msg.arg1 == mTrafficStatsPollToken) {
		notifyOnDataActivity();
		sendMessageDelayed(Message.obtain(this, CMD_TRAFFIC_STATS_POLL,
		mTrafficStatsPollToken, 0), POLL_TRAFFIC_STATS_INTERVAL_MSECS);
		}
		break;
		}
		@@ -214,7 +259,40 @@ public class WifiService extends IWifiManager.Stub {
		}
		}
		}
		WifiServiceHandler mHandler;
		private AsyncServiceHandler mAsyncServiceHandler;

		/**
		* Handles interaction with WifiStateMachine
		*/
		private class WifiStateMachineHandler extends Handler {
		private AsyncChannel mWsmChannel;

		WifiStateMachineHandler(android.os.Looper looper) {
		super(looper);
		mWsmChannel = new AsyncChannel();
		mWsmChannel.connect(mContext, this, mWifiStateMachine.getHandler());
		}

		@Override
		public void handleMessage(Message msg) {
		switch (msg.what) {
		case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: {
		if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) {
		mWifiStateMachineChannel = mWsmChannel;
		} else {
		Slog.e(TAG, "WifiStateMachine connection failure, error=" + msg.arg1);
		mWifiStateMachineChannel = null;
		}
		break;
		}
		default: {
		Slog.d(TAG, "WifiStateMachineHandler.handleMessage ignoring msg=" + msg);
		break;
		}
		}
		}
		}
		WifiStateMachineHandler mWifiStateMachineHandler;

		/**
		* Temporary for computing UIDS that are responsible for starting WIFI.
		@@ -224,7 +302,10 @@ public class WifiService extends IWifiManager.Stub {

		WifiService(Context context) {
		mContext = context;
		mWifiStateMachine = new WifiStateMachine(mContext);

		mInterfaceName = SystemProperties.get("wifi.interface", "wlan0");

		mWifiStateMachine = new WifiStateMachine(mContext, mInterfaceName);
		mWifiStateMachine.enableRssiPolling(true);
		mBatteryStats = BatteryStatsService.getService();

		@@ -232,10 +313,6 @@ public class WifiService extends IWifiManager.Stub {
		Intent idleIntent = new Intent(ACTION_DEVICE_IDLE, null);
		mIdleIntent = PendingIntent.getBroadcast(mContext, IDLE_REQUEST, idleIntent, 0);

		HandlerThread wifiThread = new HandlerThread("WifiService");
		wifiThread.start();
		mHandler = new WifiServiceHandler(wifiThread.getLooper(), context);

		mContext.registerReceiver(
		new BroadcastReceiver() {
		@Override
		@@ -271,6 +348,7 @@ public class WifiService extends IWifiManager.Stub {
		switch(mNetworkInfo.getDetailedState()) {
		case CONNECTED:
		case DISCONNECTED:
		evaluateTrafficStatsPolling();
		resetNotification();
		break;
		}
		@@ -281,6 +359,11 @@ public class WifiService extends IWifiManager.Stub {
		}
		}, filter);

		HandlerThread wifiThread = new HandlerThread("WifiService");
		wifiThread.start();
		mAsyncServiceHandler = new AsyncServiceHandler(wifiThread.getLooper());
		mWifiStateMachineHandler = new WifiStateMachineHandler(wifiThread.getLooper());

		// Setting is in seconds
		NOTIFICATION_REPEAT_DELAY_MS = Settings.Secure.getInt(context.getContentResolver(),
		Settings.Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY, 900) * 1000l;
		@@ -337,10 +420,10 @@ public class WifiService extends IWifiManager.Stub {
		*/
		public boolean pingSupplicant() {
		enforceAccessPermission();
		if (mChannel != null) {
		return mWifiStateMachine.syncPingSupplicant(mChannel);
		if (mWifiStateMachineChannel != null) {
		return mWifiStateMachine.syncPingSupplicant(mWifiStateMachineChannel);
		} else {
		Slog.e(TAG, "mChannel is not initialized");
		Slog.e(TAG, "mWifiStateMachineChannel is not initialized");
		return false;
		}
		}
		@@ -550,10 +633,10 @@ public class WifiService extends IWifiManager.Stub {
		*/
		public int addOrUpdateNetwork(WifiConfiguration config) {
		enforceChangePermission();
		if (mChannel != null) {
		return mWifiStateMachine.syncAddOrUpdateNetwork(mChannel, config);
		if (mWifiStateMachineChannel != null) {
		return mWifiStateMachine.syncAddOrUpdateNetwork(mWifiStateMachineChannel, config);
		} else {
		Slog.e(TAG, "mChannel is not initialized");
		Slog.e(TAG, "mWifiStateMachineChannel is not initialized");
		return -1;
		}
		}
		@@ -566,10 +649,10 @@ public class WifiService extends IWifiManager.Stub {
		*/
		public boolean removeNetwork(int netId) {
		enforceChangePermission();
		if (mChannel != null) {
		return mWifiStateMachine.syncRemoveNetwork(mChannel, netId);
		if (mWifiStateMachineChannel != null) {
		return mWifiStateMachine.syncRemoveNetwork(mWifiStateMachineChannel, netId);
		} else {
		Slog.e(TAG, "mChannel is not initialized");
		Slog.e(TAG, "mWifiStateMachineChannel is not initialized");
		return false;
		}
		}
		@@ -583,10 +666,11 @@ public class WifiService extends IWifiManager.Stub {
		*/
		public boolean enableNetwork(int netId, boolean disableOthers) {
		enforceChangePermission();
		if (mChannel != null) {
		return mWifiStateMachine.syncEnableNetwork(mChannel, netId, disableOthers);
		if (mWifiStateMachineChannel != null) {
		return mWifiStateMachine.syncEnableNetwork(mWifiStateMachineChannel, netId,
		disableOthers);
		} else {
		Slog.e(TAG, "mChannel is not initialized");
		Slog.e(TAG, "mWifiStateMachineChannel is not initialized");
		return false;
		}
		}
		@@ -599,10 +683,10 @@ public class WifiService extends IWifiManager.Stub {
		*/
		public boolean disableNetwork(int netId) {
		enforceChangePermission();
		if (mChannel != null) {
		return mWifiStateMachine.syncDisableNetwork(mChannel, netId);
		if (mWifiStateMachineChannel != null) {
		return mWifiStateMachine.syncDisableNetwork(mWifiStateMachineChannel, netId);
		} else {
		Slog.e(TAG, "mChannel is not initialized");
		Slog.e(TAG, "mWifiStateMachineChannel is not initialized");
		return false;
		}
		}
		@@ -639,10 +723,10 @@ public class WifiService extends IWifiManager.Stub {
		public boolean saveConfiguration() {
		boolean result = true;
		enforceChangePermission();
		if (mChannel != null) {
		return mWifiStateMachine.syncSaveConfig(mChannel);
		if (mWifiStateMachineChannel != null) {
		return mWifiStateMachine.syncSaveConfig(mWifiStateMachineChannel);
		} else {
		Slog.e(TAG, "mChannel is not initialized");
		Slog.e(TAG, "mWifiStateMachineChannel is not initialized");
		return false;
		}
		}
		@@ -776,14 +860,23 @@ public class WifiService extends IWifiManager.Stub {

		public WpsResult startWps(WpsConfiguration config) {
		enforceChangePermission();
		if (mChannel != null) {
		return mWifiStateMachine.startWps(mChannel, config);
		if (mWifiStateMachineChannel != null) {
		return mWifiStateMachine.startWps(mWifiStateMachineChannel, config);
		} else {
		Slog.e(TAG, "mChannel is not initialized");
		Slog.e(TAG, "mWifiStateMachineChannel is not initialized");
		return new WpsResult(WpsResult.Status.FAILURE);
		}
		}

		/**
		* Get a reference to handler. This is used by a client to establish
		* an AsyncChannel communication with WifiService
		*/
		public Messenger getMessenger() {
		enforceAccessPermission();
		return new Messenger(mAsyncServiceHandler);
		}

		private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
		@Override
		public void onReceive(Context context, Intent intent) {
		@@ -805,6 +898,7 @@ public class WifiService extends IWifiManager.Stub {
		// Once the screen is on, we are not keeping WIFI running
		// because of any locks so clear that tracking immediately.
		reportStartWorkSource();
		evaluateTrafficStatsPolling();
		mWifiStateMachine.enableRssiPolling(true);
		mWifiStateMachine.enableAllNetworks();
		updateWifiState();
		@@ -813,6 +907,7 @@ public class WifiService extends IWifiManager.Stub {
		Slog.d(TAG, "ACTION_SCREEN_OFF");
		}
		mScreenOff = true;
		evaluateTrafficStatsPolling();
		mWifiStateMachine.enableRssiPolling(false);
		/*
		* Set a timer to put Wi-Fi to sleep, but only if the screen is off
		@@ -1416,6 +1511,48 @@ public class WifiService extends IWifiManager.Stub {
		}
		}

		/**
		* Evaluate if traffic stats polling is needed based on
		* connection and screen on status
		*/
		private void evaluateTrafficStatsPolling() {
		Message msg;
		if (mNetworkInfo.getDetailedState() == DetailedState.CONNECTED && !mScreenOff) {
		msg = Message.obtain(mAsyncServiceHandler, CMD_ENABLE_TRAFFIC_STATS_POLL, 1, 0);
		} else {
		msg = Message.obtain(mAsyncServiceHandler, CMD_ENABLE_TRAFFIC_STATS_POLL, 0, 0);
		}
		msg.sendToTarget();
		}

		private void notifyOnDataActivity() {
		long sent, received;
		long preTxPkts = mTxPkts, preRxPkts = mRxPkts;
		int dataActivity = WifiManager.DATA_ACTIVITY_NONE;

		mTxPkts = TrafficStats.getTxPackets(mInterfaceName);
		mRxPkts = TrafficStats.getRxPackets(mInterfaceName);

		if (preTxPkts > 0 \|\| preRxPkts > 0) {
		sent = mTxPkts - preTxPkts;
		received = mRxPkts - preRxPkts;
		if (sent > 0) {
		dataActivity \|= WifiManager.DATA_ACTIVITY_OUT;
		}
		if (received > 0) {
		dataActivity \|= WifiManager.DATA_ACTIVITY_IN;
		}

		if (dataActivity != mDataActivity && !mScreenOff) {
		mDataActivity = dataActivity;
		for (AsyncChannel client : mClients) {
		client.sendMessage(WifiManager.DATA_ACTIVITY_NOTIFICATION, mDataActivity);
		}
		}
		}
		}


		private void checkAndSetNotification() {
		// If we shouldn't place a notification on available networks, then
		// don't bother doing any of the following

wifi/java/android/net/wifi/IWifiManager.aidl

+11 −8

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@ import android.net.wifi.WpsResult;
		import android.net.wifi.ScanResult;
		import android.net.DhcpInfo;

		import android.os.Messenger;
		import android.os.WorkSource;

		/**
		@@ -111,5 +112,7 @@ interface IWifiManager
		void forgetNetwork(int networkId);

		WpsResult startWps(in WpsConfiguration config);

		Messenger getMessenger();
		}