Merge "Do not evict scan results in cold start." into oc-dr1-dev (2a75be2d) · Commits · e / os / android_frameworks_base

packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java

+5 −0

Original line number	Diff line number	Diff line
		@@ -118,6 +118,7 @@ public class AccessPoint implements Comparable<AccessPoint> {
		*/
		private final ConcurrentHashMap<String, ScanResult> mScanResultCache =
		new ConcurrentHashMap<String, ScanResult>(32);
		/ Maximum age of scan results to hold onto while actively scanning. /
		private static final long MAX_SCAN_RESULT_AGE_MS = 15000;

		static final String KEY_NETWORKINFO = "key_networkinfo";
		@@ -441,6 +442,10 @@ public class AccessPoint implements Comparable<AccessPoint> {
		}

		private void evictOldScanResults() {
		if (WifiTracker.sStaleScanResults) {
		// Do not evict old scan results unless we are scanning and have fresh results.
		return;
		}
		long nowMs = SystemClock.elapsedRealtime();
		for (Iterator<ScanResult> iter = mScanResultCache.values().iterator(); iter.hasNext(); ) {
		ScanResult result = iter.next();

packages/SettingsLib/src/com/android/settingslib/wifi/WifiTracker.java

+16 −13

Original line number	Diff line number	Diff line
		@@ -143,7 +143,9 @@ public class WifiTracker {

		@VisibleForTesting
		Scanner mScanner;
		private boolean mStaleScanResults = true;

		@GuardedBy("mLock")
		static boolean sStaleScanResults = true;

		public WifiTracker(Context context, WifiListener wifiListener,
		boolean includeSaved, boolean includeScans) {
		@@ -237,9 +239,7 @@ public class WifiTracker {
		};
		}

		/**
		* Synchronously update the list of access points with the latest information.
		*/
		/** Synchronously update the list of access points with the latest information. */
		@MainThread
		public void forceUpdate() {
		synchronized (mLock) {
		@@ -249,6 +249,7 @@ public class WifiTracker {

		final List<ScanResult> newScanResults = mWifiManager.getScanResults();
		List<WifiConfiguration> configs = mWifiManager.getConfiguredNetworks();
		mInternalAccessPoints.clear();
		updateAccessPointsLocked(newScanResults, configs);

		if (DBG) {
		@@ -353,7 +354,7 @@ public class WifiTracker {
		* <p>This should always be called when done with a WifiTracker (if startTracking was called) to
		* ensure proper cleanup and prevent any further callbacks from occurring.
		*
		* <p>Calling this method will set the {@link #mStaleScanResults} bit, which prevents
		* <p>Calling this method will set the {@link #sStaleScanResults} bit, which prevents
		* {@link WifiListener#onAccessPointsChanged()} callbacks from being invoked (until the bit
		* is unset on the next SCAN_RESULTS_AVAILABLE_ACTION).
		*/
		@@ -371,8 +372,8 @@ public class WifiTracker {

		mWorkHandler.removePendingMessages();
		mMainHandler.removePendingMessages();
		sStaleScanResults = true;
		}
		mStaleScanResults = true;
		}

		private void unregisterScoreCache() {
		@@ -477,14 +478,14 @@ public class WifiTracker {
		/**
		* Safely modify {@link #mInternalAccessPoints} by acquiring {@link #mLock} first.
		*
		* <p>Will not perform the update if {@link #mStaleScanResults} is true
		* <p>Will not perform the update if {@link #sStaleScanResults} is true
		*/
		private void updateAccessPoints() {
		List<WifiConfiguration> configs = mWifiManager.getConfiguredNetworks();
		final List<ScanResult> newScanResults = mWifiManager.getScanResults();

		synchronized (mLock) {
		if(!mStaleScanResults) {
		if(!sStaleScanResults) {
		updateAccessPointsLocked(newScanResults, configs);
		}
		}
		@@ -494,7 +495,7 @@ public class WifiTracker {
		* Update the internal list of access points.
		*
		* <p>Do not called directly (except for forceUpdate), use {@link #updateAccessPoints()} which
		* respects {@link #mStaleScanResults}.
		* respects {@link #sStaleScanResults}.
		*/
		@GuardedBy("mLock")
		private void updateAccessPointsLocked(final List<ScanResult> newScanResults,
		@@ -784,9 +785,11 @@ public class WifiTracker {
		mWorkHandler.sendEmptyMessage(WorkHandler.MSG_UPDATE_ACCESS_POINTS);
		} else if (WifiManager.NETWORK_STATE_CHANGED_ACTION.equals(action)) {
		NetworkInfo info = intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);
		mConnected.set(info.isConnected());

		if(mConnected.get() != info.isConnected()) {
		mConnected.set(info.isConnected());
		mMainHandler.sendEmptyMessage(MainHandler.MSG_CONNECTED_CHANGED);
		}

		mWorkHandler.obtainMessage(WorkHandler.MSG_UPDATE_NETWORK_INFO, info)
		.sendToTarget();
		@@ -839,7 +842,7 @@ public class WifiTracker {
		// Only notify listeners of changes if we have fresh scan results, otherwise the
		// UI will be updated with stale results. We want to copy the APs regardless,
		// for instances where forceUpdate was invoked by the caller.
		if (mStaleScanResults) {
		if (sStaleScanResults) {
		copyAndNotifyListeners(false /notifyListeners/);
		} else {
		copyAndNotifyListeners(true /notifyListeners/);
		@@ -894,7 +897,7 @@ public class WifiTracker {
		switch (msg.what) {
		case MSG_UPDATE_ACCESS_POINTS:
		if (msg.arg1 == CLEAR_STALE_SCAN_RESULTS) {
		mStaleScanResults = false;
		sStaleScanResults = false;
		}
		updateAccessPoints();
		break;

packages/SettingsLib/tests/integ/src/com/android/settingslib/wifi/WifiTrackerTest.java

+39 −0

Original line number	Diff line number	Diff line
		@@ -135,7 +135,9 @@ public class WifiTrackerTest {
		private HandlerThread mWorkerThread;
		private Looper mWorkerLooper;
		private Looper mMainLooper;

		private int mOriginalScoringUiSettingValue;
		private boolean mOriginalStaleScanResultsValue;

		@Before
		public void setUp() {
		@@ -210,6 +212,8 @@ public class WifiTrackerTest {
		InstrumentationRegistry.getTargetContext().getContentResolver(),
		Settings.Global.NETWORK_SCORING_UI_ENABLED,
		1 /* enabled */);

		mOriginalStaleScanResultsValue = WifiTracker.sStaleScanResults;
		}

		@After
		@@ -218,6 +222,8 @@ public class WifiTrackerTest {
		InstrumentationRegistry.getTargetContext().getContentResolver(),
		Settings.Global.NETWORK_SCORING_UI_ENABLED,
		mOriginalScoringUiSettingValue);

		WifiTracker.sStaleScanResults = mOriginalStaleScanResultsValue;
		}

		private static ScanResult buildScanResult1() {
		@@ -840,4 +846,37 @@ public class WifiTrackerTest {

		assertThat(tracker.getAccessPoints()).isEmpty();
		}

		@Test
		public void onConnectedChangedCallback_shouldNotBeInvokedWhenNoStateChange() throws Exception {
		WifiTracker tracker = createTrackerWithScanResultsAndAccessPoint1Connected();
		verify(mockWifiListener, times(1)).onConnectedChanged();

		NetworkInfo networkInfo = new NetworkInfo(
		ConnectivityManager.TYPE_WIFI, 0, "Type Wifi", "subtype");
		networkInfo.setDetailedState(NetworkInfo.DetailedState.CONNECTED, "connected", "test");

		Intent intent = new Intent(WifiManager.NETWORK_STATE_CHANGED_ACTION);
		intent.putExtra(WifiManager.EXTRA_NETWORK_INFO, networkInfo);
		tracker.mReceiver.onReceive(mContext, intent);

		verify(mockWifiListener, times(1)).onConnectedChanged();
		}

		@Test
		public void onConnectedChangedCallback_shouldNBeInvokedWhenStateChanges() throws Exception {
		WifiTracker tracker = createTrackerWithScanResultsAndAccessPoint1Connected();
		verify(mockWifiListener, times(1)).onConnectedChanged();

		NetworkInfo networkInfo = new NetworkInfo(
		ConnectivityManager.TYPE_WIFI, 0, "Type Wifi", "subtype");
		networkInfo.setDetailedState(
		NetworkInfo.DetailedState.DISCONNECTED, "dicconnected", "test");

		Intent intent = new Intent(WifiManager.NETWORK_STATE_CHANGED_ACTION);
		intent.putExtra(WifiManager.EXTRA_NETWORK_INFO, networkInfo);
		tracker.mReceiver.onReceive(mContext, intent);

		verify(mockWifiListener, times(2)).onConnectedChanged();
		}
		}