Collect link status & bandwidth for DataStallRecoveryStats (037253af) · Commits · e / os / android_frameworks_opt_telephony

src/java/com/android/internal/telephony/data/DataStallRecoveryManager.java

+6 −2

Original line number	Diff line number	Diff line
		@@ -187,6 +187,7 @@ public class DataStallRecoveryManager extends Handler {

		private DataStallRecoveryManagerCallback mDataStallRecoveryManagerCallback;

		private final DataStallRecoveryStats mStats;
		/**
		* The data stall recovery manager callback. Note this is only used for passing information
		* internally in the data stack, should not be used externally.
		@@ -248,6 +249,8 @@ public class DataStallRecoveryManager extends Handler {
		updateDataStallRecoveryConfigs();

		registerAllEvents();

		mStats = new DataStallRecoveryStats(mPhone, dataNetworkController);
		}

		/** Register for all events that data stall monitor is interested. */
		@@ -645,8 +648,9 @@ public class DataStallRecoveryManager extends Handler {
		&& !mIsAttemptedAllSteps)
		\|\| mLastAction == RECOVERY_ACTION_RESET_MODEM)
		? (int) getDurationOfCurrentRecoveryMs() : 0;
		DataStallRecoveryStats.onDataStallEvent(
		mLastAction, mPhone, isValid, timeDuration, reason,

		mStats.uploadMetrics(
		mLastAction, isValid, timeDuration, reason,
		isFirstValidationAfterDoRecovery, timeDurationOfCurrentAction);
		logl(
		"data stall: "

src/java/com/android/internal/telephony/metrics/DataStallRecoveryStats.java

+286 −88

Original line number	Diff line number	Diff line
		@@ -16,138 +16,336 @@

		package com.android.internal.telephony.metrics;

		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.net.NetworkCapabilities;
		import android.os.Handler;
		import android.os.HandlerThread;
		import android.telephony.AccessNetworkConstants;
		import android.telephony.Annotation.NetworkType;
		import android.telephony.CellSignalStrength;
		import android.telephony.NetworkRegistrationInfo;
		import android.telephony.ServiceState;
		import android.telephony.TelephonyManager;
		import android.telephony.data.DataCallResponse;
		import android.telephony.data.DataCallResponse.LinkStatus;

		import com.android.internal.telephony.Phone;
		import com.android.internal.telephony.PhoneConstants;
		import com.android.internal.telephony.PhoneFactory;
		import com.android.internal.telephony.ServiceStateTracker;
		import com.android.internal.telephony.TelephonyStatsLog;
		import com.android.internal.telephony.data.DataNetwork;
		import com.android.internal.telephony.data.DataNetworkController;
		import com.android.internal.telephony.data.DataNetworkController.DataNetworkControllerCallback;
		import com.android.internal.telephony.data.DataStallRecoveryManager;
		import com.android.internal.telephony.subscription.SubscriptionInfoInternal;
		import com.android.internal.telephony.subscription.SubscriptionManagerService;
		import com.android.telephony.Rlog;

		/** Generates metrics related to data stall recovery events per phone ID for the pushed atom. */
		import java.util.List;

		/**
		* Generates metrics related to data stall recovery events per phone ID for the pushed atom.
		*/
		public class DataStallRecoveryStats {

		/**
		* Create and push new atom when there is a data stall recovery event
		*
		* @param recoveryAction Data stall recovery action
		* @param phone
		* Value indicating that link bandwidth is unspecified.
		* Copied from {@code NetworkCapabilities#LINK_BANDWIDTH_UNSPECIFIED}
		*/
		private static final int LINK_BANDWIDTH_UNSPECIFIED = 0;

		private static final String TAG = "DSRS-";

		// Handler to upload metrics.
		private final @NonNull Handler mHandler;

		private final @NonNull String mTag;
		private final @NonNull Phone mPhone;

		// The interface name of the internet network.
		private @Nullable String mIfaceName = null;

		/* Metrics and stats data variables */
		private int mPhoneId = 0;
		private int mCarrierId = TelephonyManager.UNKNOWN_CARRIER_ID;
		private int mSignalStrength = CellSignalStrength.SIGNAL_STRENGTH_NONE_OR_UNKNOWN;
		private int mBand = 0;
		// The RAT used for data (including IWLAN).
		private @NetworkType int mRat = TelephonyManager.NETWORK_TYPE_UNKNOWN;
		private boolean mIsOpportunistic = false;
		private boolean mIsMultiSim = false;
		private int mNetworkRegState = NetworkRegistrationInfo
		.REGISTRATION_STATE_NOT_REGISTERED_OR_SEARCHING;
		// Info of the other device in case of DSDS
		private int mOtherSignalStrength = CellSignalStrength.SIGNAL_STRENGTH_NONE_OR_UNKNOWN;
		private int mOtherNetworkRegState = NetworkRegistrationInfo
		.REGISTRATION_STATE_NOT_REGISTERED_OR_SEARCHING;
		// Link status of the data network
		private @LinkStatus int mInternetLinkStatus = DataCallResponse.LINK_STATUS_UNKNOWN;

		/* Since the Enum has been extended in Android T, we are mapping it to the correct number. */
		private static final int RECOVERY_ACTION_RADIO_RESTART_MAPPING = 3;
		private static final int RECOVERY_ACTION_RESET_MODEM_MAPPING = 4;
		// The link bandwidth of the data network
		private int mLinkDownBandwidthKbps = LINK_BANDWIDTH_UNSPECIFIED;
		private int mLinkUpBandwidthKbps = LINK_BANDWIDTH_UNSPECIFIED;

		/**
		* Called when data stall happened.
		* Constructs a new instance of {@link DataStallRecoveryStats}.
		*/
		public DataStallRecoveryStats(@NonNull final Phone phone,
		@NonNull final DataNetworkController dataNetworkController) {
		mTag = TAG + phone.getPhoneId();
		mPhone = phone;

		HandlerThread handlerThread = new HandlerThread(mTag + "-thread");
		handlerThread.start();
		mHandler = new Handler(handlerThread.getLooper());

		dataNetworkController.registerDataNetworkControllerCallback(
		new DataNetworkControllerCallback(mHandler::post) {
		@Override
		public void onInternetDataNetworkConnected(
		@NonNull List<DataNetwork> internetNetworks) {
		for (DataNetwork dataNetwork : internetNetworks) {
		mIfaceName = dataNetwork.getLinkProperties().getInterfaceName();
		break;
		}
		}

		@Override
		public void onInternetDataNetworkDisconnected() {
		mIfaceName = null;
		}

		@Override
		public void onPhysicalLinkStatusChanged(@LinkStatus int status) {
		mInternetLinkStatus = status;
		}
		});
		}

		/**
		* Create and push new atom when there is a data stall recovery event.
		*
		* @param recoveryAction The recovery action.
		* @param phone The phone instance.
		* @param isRecovered The data stall symptom recovered or not.
		* @param durationMillis The duration from data stall symptom occurred.
		* @param reason The recovered(data resume) reason.
		* @param isFirstValidation The validation status if it's the first come after recovery.
		* @param action The recovery action.
		* @param isRecovered Whether the data stall has been recovered.
		* @param duration The duration from data stall occurred in milliseconds.
		* @param reason The reason for the recovery.
		* @param isFirstValidation Whether this is the first validation after recovery.
		* @param durationOfAction The duration of the current action in milliseconds.
		*/
		public static void onDataStallEvent(
		@DataStallRecoveryManager.RecoveryAction int recoveryAction,
		Phone phone,
		public void uploadMetrics(
		@DataStallRecoveryManager.RecoveryAction int action,
		boolean isRecovered,
		int durationMillis,
		int duration,
		@DataStallRecoveryManager.RecoveredReason int reason,
		boolean isFirstValidation,
		int durationMillisOfCurrentAction) {
		if (phone.getPhoneType() == PhoneConstants.PHONE_TYPE_IMS) {
		phone = phone.getDefaultPhone();
		}

		int carrierId = phone.getCarrierId();
		int rat = getRat(phone);
		int band =
		(rat == TelephonyManager.NETWORK_TYPE_IWLAN) ? 0 : ServiceStateStats.getBand(phone);
		// the number returned here matches the SignalStrength enum we have
		int signalStrength = phone.getSignalStrength().getLevel();
		boolean isOpportunistic = getIsOpportunistic(phone);
		boolean isMultiSim = SimSlotState.getCurrentState().numActiveSims > 1;

		if (recoveryAction == DataStallRecoveryManager.RECOVERY_ACTION_RADIO_RESTART) {
		recoveryAction = RECOVERY_ACTION_RADIO_RESTART_MAPPING;
		} else if (recoveryAction == DataStallRecoveryManager.RECOVERY_ACTION_RESET_MODEM) {
		recoveryAction = RECOVERY_ACTION_RESET_MODEM_MAPPING;
		}

		// collect info of the other device in case of DSDS
		int otherSignalStrength = CellSignalStrength.SIGNAL_STRENGTH_NONE_OR_UNKNOWN;
		// the number returned here matches the NetworkRegistrationState enum we have
		int otherNetworkRegState = NetworkRegistrationInfo
		int durationOfAction) {

		mHandler.post(() -> {
		// Update data stall stats
		log("Set recovery action to " + action);

		// Refreshes the metrics data.
		try {
		refreshMetricsData();
		} catch (Exception e) {
		loge("The metrics data cannot be refreshed.", e);
		return;
		}

		/**
		* TODO: Extend TelephonyStatsLog.write to upload the TCP information and data
		* networking stats data.
		*/
		TelephonyStatsLog.write(
		TelephonyStatsLog.DATA_STALL_RECOVERY_REPORTED,
		mCarrierId,
		mRat,
		mSignalStrength,
		action,
		mIsOpportunistic,
		mIsMultiSim,
		mBand,
		isRecovered,
		duration,
		reason,
		mOtherSignalStrength,
		mOtherNetworkRegState,
		mNetworkRegState,
		isFirstValidation,
		mPhoneId,
		durationOfAction);

		log("Upload stats: "
		+ "Action:"
		+ action
		+ ", Recovered:"
		+ isRecovered
		+ ", Duration:"
		+ duration
		+ ", Reason:"
		+ reason
		+ ", First validation:"
		+ isFirstValidation
		+ ", Duration of action:"
		+ durationOfAction
		+ ", "
		+ this);
		});
		}

		/**
		* Refreshes the metrics data.
		*/
		private void refreshMetricsData() {
		logd("Refreshes the metrics data.");
		// Update phone id/carrier id and signal strength
		mPhoneId = mPhone.getPhoneId() + 1;
		mCarrierId = mPhone.getCarrierId();
		mSignalStrength = mPhone.getSignalStrength().getLevel();

		// Update the bandwidth.
		updateBandwidths();

		// Update the RAT and band.
		updateRatAndBand();

		// Update the opportunistic state.
		mIsOpportunistic = getIsOpportunistic(mPhone);

		// Update the multi-SIM state.
		mIsMultiSim = SimSlotState.getCurrentState().numActiveSims > 1;

		// Update the network registration state.
		updateNetworkRegState();

		// Update the DSDS information.
		updateDsdsInfo();
		}

		/**
		* Updates the bandwidth for the current data network.
		*/
		private void updateBandwidths() {
		mLinkDownBandwidthKbps = mLinkUpBandwidthKbps = LINK_BANDWIDTH_UNSPECIFIED;

		if (mIfaceName == null) {
		loge("Interface name is null");
		return;
		}

		DataNetworkController dataNetworkController = mPhone.getDataNetworkController();
		if (dataNetworkController == null) {
		loge("DataNetworkController is null");
		return;
		}

		DataNetwork dataNetwork = dataNetworkController.getDataNetworkByInterface(mIfaceName);
		if (dataNetwork == null) {
		loge("DataNetwork is null");
		return;
		}
		NetworkCapabilities networkCapabilities = dataNetwork.getNetworkCapabilities();
		if (networkCapabilities == null) {
		loge("NetworkCapabilities is null");
		return;
		}

		mLinkDownBandwidthKbps = networkCapabilities.getLinkDownstreamBandwidthKbps();
		mLinkUpBandwidthKbps = networkCapabilities.getLinkUpstreamBandwidthKbps();
		}

		private void updateRatAndBand() {
		mRat = TelephonyManager.NETWORK_TYPE_UNKNOWN;
		mBand = 0;
		ServiceState serviceState = mPhone.getServiceState();
		if (serviceState == null) {
		loge("ServiceState is null");
		return;
		}

		mRat = serviceState.getDataNetworkType();
		mBand =
		(mRat == TelephonyManager.NETWORK_TYPE_IWLAN) ? 0 : ServiceStateStats.getBand(mPhone);
		}

		private static boolean getIsOpportunistic(@NonNull Phone phone) {
		SubscriptionInfoInternal subInfo = SubscriptionManagerService.getInstance()
		.getSubscriptionInfoInternal(phone.getSubId());
		return subInfo != null && subInfo.isOpportunistic();
		}

		private void updateNetworkRegState() {
		mNetworkRegState = NetworkRegistrationInfo
		.REGISTRATION_STATE_NOT_REGISTERED_OR_SEARCHING;

		NetworkRegistrationInfo phoneRegInfo = mPhone.getServiceState()
		.getNetworkRegistrationInfo(NetworkRegistrationInfo.DOMAIN_PS,
		AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
		if (phoneRegInfo != null) {
		mNetworkRegState = phoneRegInfo.getRegistrationState();
		}
		}

		private void updateDsdsInfo() {
		mOtherSignalStrength = CellSignalStrength.SIGNAL_STRENGTH_NONE_OR_UNKNOWN;
		mOtherNetworkRegState = NetworkRegistrationInfo
		.REGISTRATION_STATE_NOT_REGISTERED_OR_SEARCHING;
		for (Phone otherPhone : PhoneFactory.getPhones()) {
		if (otherPhone.getPhoneId() == phone.getPhoneId()) continue;
		if (otherPhone.getPhoneId() == mPhone.getPhoneId()) continue;
		if (!getIsOpportunistic(otherPhone)) {
		otherSignalStrength = otherPhone.getSignalStrength().getLevel();
		mOtherSignalStrength = otherPhone.getSignalStrength().getLevel();
		NetworkRegistrationInfo regInfo = otherPhone.getServiceState()
		.getNetworkRegistrationInfo(NetworkRegistrationInfo.DOMAIN_PS,
		AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
		if (regInfo != null) {
		otherNetworkRegState = regInfo.getRegistrationState();
		mOtherNetworkRegState = regInfo.getRegistrationState();
		}
		break;
		}
		}
		}

		// the number returned here matches the NetworkRegistrationState enum we have
		int phoneNetworkRegState = NetworkRegistrationInfo
		.REGISTRATION_STATE_NOT_REGISTERED_OR_SEARCHING;

		NetworkRegistrationInfo phoneRegInfo = phone.getServiceState()
		.getNetworkRegistrationInfo(NetworkRegistrationInfo.DOMAIN_PS,
		AccessNetworkConstants.TRANSPORT_TYPE_WWAN);
		if (phoneRegInfo != null) {
		phoneNetworkRegState = phoneRegInfo.getRegistrationState();
		private void log(@NonNull String s) {
		Rlog.i(mTag, s);
		}

		// reserve 0 for default value
		int phoneId = phone.getPhoneId() + 1;
		private void logd(@NonNull String s) {
		Rlog.d(mTag, s);
		}

		TelephonyStatsLog.write(
		TelephonyStatsLog.DATA_STALL_RECOVERY_REPORTED,
		carrierId,
		rat,
		signalStrength,
		recoveryAction,
		isOpportunistic,
		isMultiSim,
		band,
		isRecovered,
		durationMillis,
		reason,
		otherSignalStrength,
		otherNetworkRegState,
		phoneNetworkRegState,
		isFirstValidation,
		phoneId,
		durationMillisOfCurrentAction);
		private void loge(@NonNull String s) {
		Rlog.e(mTag, s);
		}

		/** Returns the RAT used for data (including IWLAN). */
		private static @NetworkType int getRat(Phone phone) {
		ServiceStateTracker serviceStateTracker = phone.getServiceStateTracker();
		ServiceState serviceState =
		serviceStateTracker != null ? serviceStateTracker.getServiceState() : null;
		return serviceState != null
		? serviceState.getDataNetworkType()
		: TelephonyManager.NETWORK_TYPE_UNKNOWN;
		private void loge(@NonNull String s, Throwable tr) {
		Rlog.e(mTag, s, tr);
		}

		private static boolean getIsOpportunistic(Phone phone) {
		SubscriptionInfoInternal subInfo = SubscriptionManagerService.getInstance()
		.getSubscriptionInfoInternal(phone.getSubId());
		return subInfo != null && subInfo.isOpportunistic();
		@Override
		public String toString() {
		return "DataStallRecoveryStats {"
		+ "Phone id:"
		+ mPhoneId
		+ ", Signal strength:"
		+ mSignalStrength
		+ ", Band:" + mBand
		+ ", RAT:" + mRat
		+ ", Opportunistic:"
		+ mIsOpportunistic
		+ ", Multi-SIM:"
		+ mIsMultiSim
		+ ", Network reg state:"
		+ mNetworkRegState
		+ ", Other signal strength:"
		+ mOtherSignalStrength
		+ ", Other network reg state:"
		+ mOtherNetworkRegState
		+ ", Link status:"
		+ mInternetLinkStatus
		+ ", Link down bandwidth:"
		+ mLinkDownBandwidthKbps
		+ ", Link up bandwidth:"
		+ mLinkUpBandwidthKbps
		+ "}";
		}
		}

tests/telephonytests/src/com/android/internal/telephony/data/DataStallRecoveryManagerTest.java

+4 −4

Original line number	Diff line number	Diff line
		@@ -93,22 +93,22 @@ public class DataStallRecoveryManagerTest extends TelephonyTest {
		private void sendValidationStatusCallback(@ValidationStatus int status) {
		ArgumentCaptor<DataNetworkControllerCallback> dataNetworkControllerCallbackCaptor =
		ArgumentCaptor.forClass(DataNetworkControllerCallback.class);
		verify(mDataNetworkController)
		verify(mDataNetworkController, times(2))
		.registerDataNetworkControllerCallback(
		dataNetworkControllerCallbackCaptor.capture());
		DataNetworkControllerCallback dataNetworkControllerCallback =
		dataNetworkControllerCallbackCaptor.getValue();
		dataNetworkControllerCallbackCaptor.getAllValues().get(0);
		dataNetworkControllerCallback.onInternetDataNetworkValidationStatusChanged(status);
		}

		private void sendOnInternetDataNetworkCallback(boolean isConnected) {
		ArgumentCaptor<DataNetworkControllerCallback> dataNetworkControllerCallbackCaptor =
		ArgumentCaptor.forClass(DataNetworkControllerCallback.class);
		verify(mDataNetworkController)
		verify(mDataNetworkController, times(2))
		.registerDataNetworkControllerCallback(
		dataNetworkControllerCallbackCaptor.capture());
		DataNetworkControllerCallback dataNetworkControllerCallback =
		dataNetworkControllerCallbackCaptor.getValue();
		dataNetworkControllerCallbackCaptor.getAllValues().get(0);

		if (isConnected) {
		List<DataNetwork> dataprofile = new ArrayList<>();