Merge "Batterystats track background bad ble scan time" into oc-dev (41e3f147) · Commits · e / os / android_frameworks_base

core/java/android/os/BatteryStats.java

+106 −15

Original line number	Diff line number	Diff line
		@@ -161,6 +161,11 @@ public abstract class BatteryStats implements Parcelable {
		*/
		public static final int AGGREGATED_WAKE_TYPE_PARTIAL = 20;

		/**
		* A constant indicating a bluetooth scan timer for unoptimized scans.
		*/
		public static final int BLUETOOTH_UNOPTIMIZED_SCAN_ON = 21;

		/**
		* Include all of the data in the stats, including previously saved data.
		*/
		@@ -191,8 +196,12 @@ public abstract class BatteryStats implements Parcelable {
		* New in version 21:
		* - Actual (not just apportioned) Wakelock time is also recorded.
		* - Aggregated partial wakelock time (per uid, instead of per wakelock) is recorded.
		* - BLE scan result count
		* - CPU frequency time per uid
		* New in version 22:
		* - BLE scan result background count, BLE unoptimized scan time
		*/
		static final String CHECKIN_VERSION = "21";
		static final String CHECKIN_VERSION = "22";

		/**
		* Old version, we hit 9 and ran out of room, need to remove.
		@@ -565,7 +574,10 @@ public abstract class BatteryStats implements Parcelable {
		public abstract Timer getForegroundActivityTimer();
		public abstract Timer getBluetoothScanTimer();
		public abstract Timer getBluetoothScanBackgroundTimer();
		public abstract Timer getBluetoothUnoptimizedScanTimer();
		public abstract Timer getBluetoothUnoptimizedScanBackgroundTimer();
		public abstract Counter getBluetoothScanResultCounter();
		public abstract Counter getBluetoothScanResultBgCounter();

		public abstract long[] getCpuFreqTimes(int which);
		public abstract long[] getScreenOffCpuFreqTimes(int which);
		@@ -3429,10 +3441,29 @@ public abstract class BatteryStats implements Parcelable {
		final long actualTime = bleTimer.getTotalDurationMsLocked(rawRealtimeMs);
		final long actualTimeBg = bleTimerBg != null ?
		bleTimerBg.getTotalDurationMsLocked(rawRealtimeMs) : 0;
		// Result counters
		final int resultCount = u.getBluetoothScanResultCounter() != null ?
		u.getBluetoothScanResultCounter().getCountLocked(which) : 0;
		final int resultCountBg = u.getBluetoothScanResultBgCounter() != null ?
		u.getBluetoothScanResultBgCounter().getCountLocked(which) : 0;
		// Unoptimized scan timer. Unpooled and since reset (regardless of 'which').
		final Timer unoptimizedScanTimer = u.getBluetoothUnoptimizedScanTimer();
		final long unoptimizedScanTotalTime = unoptimizedScanTimer != null ?
		unoptimizedScanTimer.getTotalDurationMsLocked(rawRealtimeMs) : 0;
		final long unoptimizedScanMaxTime = unoptimizedScanTimer != null ?
		unoptimizedScanTimer.getMaxDurationMsLocked(rawRealtimeMs) : 0;
		// Unoptimized bg scan timer. Unpooled and since reset (regardless of 'which').
		final Timer unoptimizedScanTimerBg =
		u.getBluetoothUnoptimizedScanBackgroundTimer();
		final long unoptimizedScanTotalTimeBg = unoptimizedScanTimerBg != null ?
		unoptimizedScanTimerBg.getTotalDurationMsLocked(rawRealtimeMs) : 0;
		final long unoptimizedScanMaxTimeBg = unoptimizedScanTimerBg != null ?
		unoptimizedScanTimerBg.getMaxDurationMsLocked(rawRealtimeMs) : 0;

		dumpLine(pw, uid, category, BLUETOOTH_MISC_DATA, totalTime, count,
		countBg, actualTime, actualTimeBg, resultCount);
		countBg, actualTime, actualTimeBg, resultCount, resultCountBg,
		unoptimizedScanTotalTime, unoptimizedScanTotalTimeBg,
		unoptimizedScanMaxTime, unoptimizedScanMaxTimeBg);
		}
		}

		@@ -4625,34 +4656,94 @@ public abstract class BatteryStats implements Parcelable {
		final long actualTimeMs = bleTimer.getTotalDurationMsLocked(rawRealtimeMs);
		final long actualTimeMsBg = bleTimerBg != null ?
		bleTimerBg.getTotalDurationMsLocked(rawRealtimeMs) : 0;
		// Result counters
		final int resultCount = u.getBluetoothScanResultCounter() != null ?
		u.getBluetoothScanResultCounter().getCountLocked(which) : 0;
		final int resultCountBg = u.getBluetoothScanResultBgCounter() != null ?
		u.getBluetoothScanResultBgCounter().getCountLocked(which) : 0;
		// Unoptimized scan timer. Unpooled and since reset (regardless of 'which').
		final Timer unoptimizedScanTimer = u.getBluetoothUnoptimizedScanTimer();
		final long unoptimizedScanTotalTime = unoptimizedScanTimer != null ?
		unoptimizedScanTimer.getTotalDurationMsLocked(rawRealtimeMs) : 0;
		final long unoptimizedScanMaxTime = unoptimizedScanTimer != null ?
		unoptimizedScanTimer.getMaxDurationMsLocked(rawRealtimeMs) : 0;
		// Unoptimized bg scan timer. Unpooled and since reset (regardless of 'which').
		final Timer unoptimizedScanTimerBg =
		u.getBluetoothUnoptimizedScanBackgroundTimer();
		final long unoptimizedScanTotalTimeBg = unoptimizedScanTimerBg != null ?
		unoptimizedScanTimerBg.getTotalDurationMsLocked(rawRealtimeMs) : 0;
		final long unoptimizedScanMaxTimeBg = unoptimizedScanTimerBg != null ?
		unoptimizedScanTimerBg.getMaxDurationMsLocked(rawRealtimeMs) : 0;

		sb.setLength(0);
		sb.append(prefix);
		sb.append(" ");
		sb.append("Bluetooth Scan");
		sb.append(": ");
		if (actualTimeMs != totalTimeMs) {
		sb.append(prefix);
		sb.append(" Bluetooth Scan (total blamed realtime): ");
		formatTimeMs(sb, totalTimeMs);
		sb.append("blamed realtime, ");
		sb.append(" (");
		sb.append(count);
		sb.append(" times)");
		if (bleTimer.isRunningLocked()) {
		sb.append(" (currently running)");
		}
		formatTimeMs(sb, actualTimeMs); // since reset, regardless of 'which'
		sb.append("realtime (");
		sb.append("\n");
		}

		sb.append(prefix);
		sb.append(" Bluetooth Scan (total actual realtime): ");
		formatTimeMs(sb, actualTimeMs); // since reset, ignores 'which'
		sb.append(" (");
		sb.append(count);
		sb.append(" times)");
		if (bleTimer.isRunningLocked()) {
		sb.append(" (running)");
		sb.append(" (currently running)");
		}
		if (actualTimeMsBg != 0 \|\| countBg > 0) {
		sb.append(", ");
		formatTimeMs(sb, actualTimeMsBg); // since reset, regardless of 'which'
		sb.append("background (");
		sb.append("\n");
		if (actualTimeMsBg > 0 \|\| countBg > 0) {
		sb.append(prefix);
		sb.append(" Bluetooth Scan (background realtime): ");
		formatTimeMs(sb, actualTimeMsBg); // since reset, ignores 'which'
		sb.append(" (");
		sb.append(countBg);
		sb.append(" times)");
		if (bleTimerBg != null && bleTimerBg.isRunningLocked()) {
		sb.append(" (currently running in background)");
		}
		sb.append("\n");
		}
		sb.append("; Results count ");

		sb.append(prefix);
		sb.append(" Bluetooth Scan Results: ");
		sb.append(resultCount);
		sb.append(" (");
		sb.append(resultCountBg);
		sb.append(" in background)");

		if (unoptimizedScanTotalTime > 0 \|\| unoptimizedScanTotalTimeBg > 0) {
		sb.append("\n");
		sb.append(prefix);
		sb.append(" Unoptimized Bluetooth Scan (realtime): ");
		formatTimeMs(sb, unoptimizedScanTotalTime); // since reset, ignores 'which'
		sb.append(" (max ");
		formatTimeMs(sb, unoptimizedScanMaxTime); // since reset, ignores 'which'
		sb.append(")");
		if (unoptimizedScanTimer != null
		&& unoptimizedScanTimer.isRunningLocked()) {
		sb.append(" (currently running unoptimized)");
		}
		if (unoptimizedScanTimerBg != null && unoptimizedScanTotalTimeBg > 0) {
		sb.append("\n");
		sb.append(prefix);
		sb.append(" Unoptimized Bluetooth Scan (background realtime): ");
		formatTimeMs(sb, unoptimizedScanTotalTimeBg); // since reset
		sb.append(" (max ");
		formatTimeMs(sb, unoptimizedScanMaxTimeBg); // since reset
		sb.append(")");
		if (unoptimizedScanTimerBg.isRunningLocked()) {
		sb.append(" (currently running unoptimized in background)");
		}
		}
		}
		pw.println(sb.toString());
		uidActivity = true;
		}

core/java/com/android/internal/app/IBatteryStats.aidl

+1 −1

Original line number	Diff line number	Diff line
		@@ -129,7 +129,7 @@ interface IBatteryStats {
		long getAwakeTimeBattery();
		long getAwakeTimePlugged();

		void noteBleScanStarted(in WorkSource ws);
		void noteBleScanStarted(in WorkSource ws, boolean isUnoptimized);
		void noteBleScanStopped(in WorkSource ws);
		void noteResetBleScan();
		void noteBleScanResults(in WorkSource ws, int numNewResults);

core/java/com/android/internal/os/BatteryStatsImpl.java

+109 −5

Original line number	Diff line number	Diff line
		@@ -4821,7 +4821,7 @@ public class BatteryStatsImpl extends BatteryStats {
		}
		}

		private void noteBluetoothScanStartedLocked(int uid) {
		private void noteBluetoothScanStartedLocked(int uid, boolean isUnoptimized) {
		uid = mapUid(uid);
		final long elapsedRealtime = mClocks.elapsedRealtime();
		final long uptime = mClocks.uptimeMillis();
		@@ -4833,13 +4833,13 @@ public class BatteryStatsImpl extends BatteryStats {
		mBluetoothScanTimer.startRunningLocked(elapsedRealtime);
		}
		mBluetoothScanNesting++;
		getUidStatsLocked(uid).noteBluetoothScanStartedLocked(elapsedRealtime);
		getUidStatsLocked(uid).noteBluetoothScanStartedLocked(elapsedRealtime, isUnoptimized);
		}

		public void noteBluetoothScanStartedFromSourceLocked(WorkSource ws) {
		public void noteBluetoothScanStartedFromSourceLocked(WorkSource ws, boolean isUnoptimized) {
		final int N = ws.size();
		for (int i = 0; i < N; i++) {
		noteBluetoothScanStartedLocked(ws.get(i));
		noteBluetoothScanStartedLocked(ws.get(i), isUnoptimized);
		}
		}

		@@ -5611,7 +5611,9 @@ public class BatteryStatsImpl extends BatteryStats {
		/** Total time spent by the uid holding any partial wakelocks. */
		DualTimer mAggregatedPartialWakelockTimer;
		DualTimer mBluetoothScanTimer;
		DualTimer mBluetoothUnoptimizedScanTimer;
		Counter mBluetoothScanResultCounter;
		Counter mBluetoothScanResultBgCounter;

		int mProcessState = ActivityManager.PROCESS_STATE_NONEXISTENT;
		StopwatchTimer[] mProcessStateTimer;
		@@ -6096,20 +6098,41 @@ public class BatteryStatsImpl extends BatteryStats {
		return mBluetoothScanTimer;
		}

		public void noteBluetoothScanStartedLocked(long elapsedRealtimeMs) {
		public DualTimer createBluetoothUnoptimizedScanTimerLocked() {
		if (mBluetoothUnoptimizedScanTimer == null) {
		mBluetoothUnoptimizedScanTimer = new DualTimer(mBsi.mClocks, Uid.this,
		BLUETOOTH_UNOPTIMIZED_SCAN_ON, null,
		mBsi.mOnBatteryTimeBase, mOnBatteryBackgroundTimeBase);
		}
		return mBluetoothUnoptimizedScanTimer;
		}

		public void noteBluetoothScanStartedLocked(long elapsedRealtimeMs, boolean isUnoptimized) {
		createBluetoothScanTimerLocked().startRunningLocked(elapsedRealtimeMs);
		if (isUnoptimized) {
		createBluetoothUnoptimizedScanTimerLocked().startRunningLocked(elapsedRealtimeMs);
		}
		}

		public void noteBluetoothScanStoppedLocked(long elapsedRealtimeMs) {
		if (mBluetoothScanTimer != null) {
		mBluetoothScanTimer.stopRunningLocked(elapsedRealtimeMs);
		}
		// In the ble code, a scan cannot change types and nested starts are not possible.
		// So if an unoptimizedScan is running, it is now being stopped.
		if (mBluetoothUnoptimizedScanTimer != null
		&& mBluetoothUnoptimizedScanTimer.isRunningLocked()) {
		mBluetoothUnoptimizedScanTimer.stopRunningLocked(elapsedRealtimeMs);
		}
		}

		public void noteResetBluetoothScanLocked(long elapsedRealtimeMs) {
		if (mBluetoothScanTimer != null) {
		mBluetoothScanTimer.stopAllRunningLocked(elapsedRealtimeMs);
		}
		if (mBluetoothUnoptimizedScanTimer != null) {
		mBluetoothUnoptimizedScanTimer.stopAllRunningLocked(elapsedRealtimeMs);
		}
		}

		public Counter createBluetoothScanResultCounterLocked() {
		@@ -6119,8 +6142,17 @@ public class BatteryStatsImpl extends BatteryStats {
		return mBluetoothScanResultCounter;
		}

		public Counter createBluetoothScanResultBgCounterLocked() {
		if (mBluetoothScanResultBgCounter == null) {
		mBluetoothScanResultBgCounter = new Counter(mOnBatteryBackgroundTimeBase);
		}
		return mBluetoothScanResultBgCounter;
		}

		public void noteBluetoothScanResultsLocked(int numNewResults) {
		createBluetoothScanResultCounterLocked().addAtomic(numNewResults);
		// Uses background timebase, so the count will only be incremented if uid in background.
		createBluetoothScanResultBgCounterLocked().addAtomic(numNewResults);
		}

		@Override
		@@ -6276,11 +6308,29 @@ public class BatteryStatsImpl extends BatteryStats {
		return mBluetoothScanTimer.getSubTimer();
		}

		@Override
		public Timer getBluetoothUnoptimizedScanTimer() {
		return mBluetoothUnoptimizedScanTimer;
		}

		@Override
		public Timer getBluetoothUnoptimizedScanBackgroundTimer() {
		if (mBluetoothUnoptimizedScanTimer == null) {
		return null;
		}
		return mBluetoothUnoptimizedScanTimer.getSubTimer();
		}

		@Override
		public Counter getBluetoothScanResultCounter() {
		return mBluetoothScanResultCounter;
		}

		@Override
		public Counter getBluetoothScanResultBgCounter() {
		return mBluetoothScanResultBgCounter;
		}

		void makeProcessState(int i, Parcel in) {
		if (i < 0 \|\| i >= NUM_PROCESS_STATE) return;

		@@ -6531,9 +6581,13 @@ public class BatteryStatsImpl extends BatteryStats {
		active \|= !resetTimerIfNotNull(mForegroundActivityTimer, false);
		active \|= !resetTimerIfNotNull(mAggregatedPartialWakelockTimer, false);
		active \|= !resetTimerIfNotNull(mBluetoothScanTimer, false);
		active \|= !resetTimerIfNotNull(mBluetoothUnoptimizedScanTimer, false);
		if (mBluetoothScanResultCounter != null) {
		mBluetoothScanResultCounter.reset(false);
		}
		if (mBluetoothScanResultBgCounter != null) {
		mBluetoothScanResultBgCounter.reset(false);
		}

		if (mProcessStateTimer != null) {
		for (int i = 0; i < NUM_PROCESS_STATE; i++) {
		@@ -6731,10 +6785,18 @@ public class BatteryStatsImpl extends BatteryStats {
		mBluetoothScanTimer.detach();
		mBluetoothScanTimer = null;
		}
		if (mBluetoothUnoptimizedScanTimer != null) {
		mBluetoothUnoptimizedScanTimer.detach();
		mBluetoothUnoptimizedScanTimer = null;
		}
		if (mBluetoothScanResultCounter != null) {
		mBluetoothScanResultCounter.detach();
		mBluetoothScanResultCounter = null;
		}
		if (mBluetoothScanResultBgCounter != null) {
		mBluetoothScanResultBgCounter.detach();
		mBluetoothScanResultBgCounter = null;
		}
		if (mUserActivityCounters != null) {
		for (int i=0; i<NUM_USER_ACTIVITY_TYPES; i++) {
		mUserActivityCounters[i].detach();
		@@ -6919,12 +6981,24 @@ public class BatteryStatsImpl extends BatteryStats {
		} else {
		out.writeInt(0);
		}
		if (mBluetoothUnoptimizedScanTimer != null) {
		out.writeInt(1);
		mBluetoothUnoptimizedScanTimer.writeToParcel(out, elapsedRealtimeUs);
		} else {
		out.writeInt(0);
		}
		if (mBluetoothScanResultCounter != null) {
		out.writeInt(1);
		mBluetoothScanResultCounter.writeToParcel(out);
		} else {
		out.writeInt(0);
		}
		if (mBluetoothScanResultBgCounter != null) {
		out.writeInt(1);
		mBluetoothScanResultBgCounter.writeToParcel(out);
		} else {
		out.writeInt(0);
		}
		for (int i = 0; i < NUM_PROCESS_STATE; i++) {
		if (mProcessStateTimer[i] != null) {
		out.writeInt(1);
		@@ -7167,11 +7241,23 @@ public class BatteryStatsImpl extends BatteryStats {
		} else {
		mBluetoothScanTimer = null;
		}
		if (in.readInt() != 0) {
		mBluetoothUnoptimizedScanTimer = new DualTimer(mBsi.mClocks, Uid.this,
		BLUETOOTH_UNOPTIMIZED_SCAN_ON, null,
		mBsi.mOnBatteryTimeBase, mOnBatteryBackgroundTimeBase, in);
		} else {
		mBluetoothUnoptimizedScanTimer = null;
		}
		if (in.readInt() != 0) {
		mBluetoothScanResultCounter = new Counter(mBsi.mOnBatteryTimeBase, in);
		} else {
		mBluetoothScanResultCounter = null;
		}
		if (in.readInt() != 0) {
		mBluetoothScanResultBgCounter = new Counter(mOnBatteryBackgroundTimeBase, in);
		} else {
		mBluetoothScanResultBgCounter = null;
		}
		mProcessState = ActivityManager.PROCESS_STATE_NONEXISTENT;
		for (int i = 0; i < NUM_PROCESS_STATE; i++) {
		if (in.readInt() != 0) {
		@@ -11379,9 +11465,15 @@ public class BatteryStatsImpl extends BatteryStats {
		if (in.readInt() != 0) {
		u.createBluetoothScanTimerLocked().readSummaryFromParcelLocked(in);
		}
		if (in.readInt() != 0) {
		u.createBluetoothUnoptimizedScanTimerLocked().readSummaryFromParcelLocked(in);
		}
		if (in.readInt() != 0) {
		u.createBluetoothScanResultCounterLocked().readSummaryFromParcelLocked(in);
		}
		if (in.readInt() != 0) {
		u.createBluetoothScanResultBgCounterLocked().readSummaryFromParcelLocked(in);
		}
		u.mProcessState = ActivityManager.PROCESS_STATE_NONEXISTENT;
		for (int i = 0; i < Uid.NUM_PROCESS_STATE; i++) {
		if (in.readInt() != 0) {
		@@ -11789,12 +11881,24 @@ public class BatteryStatsImpl extends BatteryStats {
		} else {
		out.writeInt(0);
		}
		if (u.mBluetoothUnoptimizedScanTimer != null) {
		out.writeInt(1);
		u.mBluetoothUnoptimizedScanTimer.writeSummaryFromParcelLocked(out, NOWREAL_SYS);
		} else {
		out.writeInt(0);
		}
		if (u.mBluetoothScanResultCounter != null) {
		out.writeInt(1);
		u.mBluetoothScanResultCounter.writeSummaryFromParcelLocked(out);
		} else {
		out.writeInt(0);
		}
		if (u.mBluetoothScanResultBgCounter != null) {
		out.writeInt(1);
		u.mBluetoothScanResultBgCounter.writeSummaryFromParcelLocked(out);
		} else {
		out.writeInt(0);
		}
		for (int i = 0; i < Uid.NUM_PROCESS_STATE; i++) {
		if (u.mProcessStateTimer[i] != null) {
		out.writeInt(1);

core/tests/coretests/src/com/android/internal/os/BatteryStatsBackgroundStatsTest.java

+31 −8

Original line number	Diff line number	Diff line
		@@ -205,9 +205,9 @@ public class BatteryStatsBackgroundStatsTest extends TestCase {
		// App in foreground
		bi.noteUidProcessStateLocked(UID, ActivityManager.PROCESS_STATE_IMPORTANT_FOREGROUND);

		// Start timer
		// Start timer (optimized)
		curr = 1000 * (clocks.realtime = clocks.uptime = 202);
		bi.noteBluetoothScanStartedFromSourceLocked(ws);
		bi.noteBluetoothScanStartedFromSourceLocked(ws, false);

		// Move to background
		curr = 1000 * (clocks.realtime = clocks.uptime = 254);
		@@ -221,21 +221,44 @@ public class BatteryStatsBackgroundStatsTest extends TestCase {
		curr = 1000 * (clocks.realtime = clocks.uptime = 409);
		bi.noteBluetoothScanStoppedFromSourceLocked(ws);

		// Start timer (unoptimized)
		curr = 1000 * (clocks.realtime = clocks.uptime = 1000);
		bi.noteBluetoothScanStartedFromSourceLocked(ws, true);

		// On battery
		curr = 1000 * (clocks.realtime = clocks.uptime = 2001);
		bi.updateTimeBasesLocked(true, false, curr, curr); // on battery

		// Move to foreground
		curr = 1000 * (clocks.realtime = clocks.uptime = 3004);
		bi.noteUidProcessStateLocked(UID, ActivityManager.PROCESS_STATE_TOP);

		// Stop timer
		curr = 1000 * (clocks.realtime = clocks.uptime = 4008);
		bi.noteBluetoothScanStoppedFromSourceLocked(ws);

		// Test
		curr = 1000 * (clocks.realtime = clocks.uptime = 657);
		curr = 1000 * (clocks.realtime = clocks.uptime = 5000);
		BatteryStats.Timer timer = bi.getUidStats().get(UID).getBluetoothScanTimer();
		BatteryStats.Timer bgTimer = bi.getUidStats().get(UID).getBluetoothScanBackgroundTimer();
		BatteryStats.Timer badTimer = bi.getUidStats().get(UID).getBluetoothUnoptimizedScanTimer();
		BatteryStats.Timer badBgTimer = bi.getUidStats().get(UID)
		.getBluetoothUnoptimizedScanBackgroundTimer();

		long time = timer.getTotalTimeLocked(curr, STATS_SINCE_CHARGED);
		int count = timer.getCountLocked(STATS_SINCE_CHARGED);
		int bgCount = bgTimer.getCountLocked(STATS_SINCE_CHARGED);
		long actualTime = timer.getTotalDurationMsLocked(clocks.realtime) * 1000;
		long bgTime = bgTimer.getTotalDurationMsLocked(clocks.realtime) * 1000;
		assertEquals((305 - 202) * 1000, time);
		assertEquals(1, count);
		assertEquals(0, bgCount);
		assertEquals((305 - 202) * 1000, actualTime);
		assertEquals((305 - 254) * 1000, bgTime);
		long badTime = badTimer.getTotalDurationMsLocked(clocks.realtime) * 1000;
		long badBgTime = badBgTimer.getTotalDurationMsLocked(clocks.realtime) * 1000;
		assertEquals((305 - 202 + 4008 - 2001) * 1000, time);
		assertEquals(1, count); // second scan starts off-battery
		assertEquals(0, bgCount); // first scan starts in fg, second starts off-battery
		assertEquals((305 - 202 + 4008 - 2001) * 1000, actualTime);
		assertEquals((305 - 254 + 3004 - 2001) * 1000, bgTime);
		assertEquals((4008 - 2001) * 1000, badTime);
		assertEquals((3004 - 2001) * 1000, badBgTime);
		}

		@SmallTest

core/tests/coretests/src/com/android/internal/os/BatteryStatsNoteTest.java

+16 −0

Original line number	Diff line number	Diff line
		@@ -37,12 +37,28 @@ public class BatteryStatsNoteTest extends TestCase{
		public void testNoteBluetoothScanResultLocked() throws Exception {
		MockBatteryStatsImpl bi = new MockBatteryStatsImpl(new MockClocks());
		bi.updateTimeBasesLocked(true, true, 0, 0);
		bi.noteUidProcessStateLocked(UID, ActivityManager.PROCESS_STATE_TOP);

		bi.noteBluetoothScanResultsFromSourceLocked(WS, 1);
		bi.noteBluetoothScanResultsFromSourceLocked(WS, 100);
		assertEquals(101,
		bi.getUidStats().get(UID).getBluetoothScanResultCounter()
		.getCountLocked(STATS_SINCE_CHARGED));
		// TODO: remove next line when Counter misreporting values when plugged-in bug is fixed.
		bi.noteUidProcessStateLocked(UID, ActivityManager.PROCESS_STATE_IMPORTANT_BACKGROUND);
		BatteryStats.Counter bgCntr = bi.getUidStats().get(UID).getBluetoothScanResultBgCounter();
		if (bgCntr != null) {
		assertEquals(0, bgCntr.getCountLocked(STATS_SINCE_CHARGED));
		}

		bi.noteUidProcessStateLocked(UID, ActivityManager.PROCESS_STATE_IMPORTANT_BACKGROUND);
		bi.noteBluetoothScanResultsFromSourceLocked(WS, 17);
		assertEquals(101 + 17,
		bi.getUidStats().get(UID).getBluetoothScanResultCounter()
		.getCountLocked(STATS_SINCE_CHARGED));
		assertEquals(17,
		bi.getUidStats().get(UID).getBluetoothScanResultBgCounter()
		.getCountLocked(STATS_SINCE_CHARGED));
		}

		/** Test BatteryStatsImpl.Uid.noteStartWakeLocked. */