Merge "Fix batterystat Counter misreporting when charging" into oc-dev (95d00a9a) · Commits · e / os / android_frameworks_base

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

+31 −24

Original line number	Diff line number	Diff line
		@@ -862,21 +862,19 @@ public class BatteryStatsImpl extends BatteryStats {
		final AtomicInteger mCount = new AtomicInteger();
		final TimeBase mTimeBase;
		int mLoadedCount;
		int mLastCount;
		int mUnpluggedCount;
		int mPluggedCount;

		Counter(TimeBase timeBase, Parcel in) {
		public Counter(TimeBase timeBase, Parcel in) {
		mTimeBase = timeBase;
		mPluggedCount = in.readInt();
		mCount.set(mPluggedCount);
		mLoadedCount = in.readInt();
		mLastCount = 0;
		mUnpluggedCount = in.readInt();
		timeBase.add(this);
		}

		Counter(TimeBase timeBase) {
		public Counter(TimeBase timeBase) {
		mTimeBase = timeBase;
		timeBase.add(this);
		}
		@@ -887,11 +885,12 @@ public class BatteryStatsImpl extends BatteryStats {
		out.writeInt(mUnpluggedCount);
		}

		@Override
		public void onTimeStarted(long elapsedRealtime, long baseUptime, long baseRealtime) {
		mUnpluggedCount = mPluggedCount;
		mCount.set(mPluggedCount);
		}

		@Override
		public void onTimeStopped(long elapsedRealtime, long baseUptime, long baseRealtime) {
		mPluggedCount = mCount.get();
		}
		@@ -926,25 +925,30 @@ public class BatteryStatsImpl extends BatteryStats {

		public void logState(Printer pw, String prefix) {
		pw.println(prefix + "mCount=" + mCount.get()
		+ " mLoadedCount=" + mLoadedCount + " mLastCount=" + mLastCount
		+ " mLoadedCount=" + mLoadedCount
		+ " mUnpluggedCount=" + mUnpluggedCount
		+ " mPluggedCount=" + mPluggedCount);
		}

		void stepAtomic() {
		@VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
		public void stepAtomic() {
		if (mTimeBase.isRunning()) {
		mCount.incrementAndGet();
		}
		}

		void addAtomic(int delta) {
		if (mTimeBase.isRunning()) {
		mCount.addAndGet(delta);
		}
		}

		/**
		* Clear state of this counter.
		*/
		void reset(boolean detachIfReset) {
		mCount.set(0);
		mLoadedCount = mLastCount = mPluggedCount = mUnpluggedCount = 0;
		mLoadedCount = mPluggedCount = mUnpluggedCount = 0;
		if (detachIfReset) {
		detach();
		}
		@@ -954,15 +958,16 @@ public class BatteryStatsImpl extends BatteryStats {
		mTimeBase.remove(this);
		}

		void writeSummaryFromParcelLocked(Parcel out) {
		@VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
		public void writeSummaryFromParcelLocked(Parcel out) {
		int count = mCount.get();
		out.writeInt(count);
		}

		void readSummaryFromParcelLocked(Parcel in) {
		@VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
		public void readSummaryFromParcelLocked(Parcel in) {
		mLoadedCount = in.readInt();
		mCount.set(mLoadedCount);
		mLastCount = 0;
		mUnpluggedCount = mPluggedCount = mLoadedCount;
		}
		}
		@@ -998,7 +1003,6 @@ public class BatteryStatsImpl extends BatteryStats {
		@Override
		public void onTimeStarted(long elapsedRealTime, long baseUptime, long baseRealtime) {
		mUnpluggedCounts = copyArray(mPluggedCounts, mUnpluggedCounts);
		mCounts = copyArray(mPluggedCounts, mCounts);
		}

		@Override
		@@ -1029,6 +1033,7 @@ public class BatteryStatsImpl extends BatteryStats {
		if (counts == null) {
		return;
		}
		if (mTimeBase.isRunning()) {
		if (mCounts == null) {
		mCounts = new long[counts.length];
		}
		@@ -1036,6 +1041,7 @@ public class BatteryStatsImpl extends BatteryStats {
		mCounts[i] += counts[i];
		}
		}
		}

		/**
		* Clear state of this counter.
		@@ -1104,13 +1110,13 @@ public class BatteryStatsImpl extends BatteryStats {
		}
		}

		private void fillArray(long[] a, long val) {
		private static void fillArray(long[] a, long val) {
		if (a != null) {
		Arrays.fill(a, val);
		}
		}

		private void subtract(@NonNull long[] val, long[] toSubtract) {
		private static void subtract(@NonNull long[] val, long[] toSubtract) {
		if (toSubtract == null) {
		return;
		}
		@@ -1119,7 +1125,7 @@ public class BatteryStatsImpl extends BatteryStats {
		}
		}

		private long[] copyArray(long[] src, long[] dest) {
		private static long[] copyArray(long[] src, long[] dest) {
		if (src == null) {
		return null;
		} else {
		@@ -1162,7 +1168,6 @@ public class BatteryStatsImpl extends BatteryStats {
		@Override
		public void onTimeStarted(long elapsedRealtime, long baseUptime, long baseRealtime) {
		mUnpluggedCount = mPluggedCount;
		mCount = mPluggedCount;
		}

		@Override
		@@ -1189,8 +1194,10 @@ public class BatteryStatsImpl extends BatteryStats {
		}

		void addCountLocked(long count) {
		if (mTimeBase.isRunning()) {
		mCount += count;
		}
		}

		/**
		* Clear state of this counter.

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

0 → 100644

+148 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2017 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License"); you may not
		* use this file except in compliance with the License. You may obtain a copy of
		* the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
		* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
		* License for the specific language governing permissions and limitations under
		* the License.
		*/
		package com.android.internal.os;

		import android.os.BatteryStats;
		import android.os.Parcel;
		import android.support.test.filters.SmallTest;

		import junit.framework.TestCase;

		/**
		* Test BatteryStatsImpl.Counter.
		*/
		public class BatteryStatsCounterTest extends TestCase {

		@SmallTest
		public void testCounter() throws Exception {
		final MockClocks clocks = new MockClocks(); // holds realtime and uptime in ms
		final BatteryStatsImpl.TimeBase timeBase = new BatteryStatsImpl.TimeBase();
		timeBase.init(clocks.uptimeMillis(), clocks.elapsedRealtime());

		final BatteryStatsImpl.Counter counter = new BatteryStatsImpl.Counter(timeBase);

		// timeBase off (i.e. plugged in)
		timeBase.setRunning(false, 1, 1);
		counter.stepAtomic();
		counter.stepAtomic();
		counter.stepAtomic();
		counter.stepAtomic();
		counter.stepAtomic();
		assertEquals(0, counter.getCountLocked(BatteryStats.STATS_SINCE_CHARGED));
		assertEquals(0, counter.getCountLocked(BatteryStats.STATS_CURRENT));
		assertEquals(0, counter.getCountLocked(BatteryStats.STATS_SINCE_UNPLUGGED));

		// timeBase on (i.e. unplugged)
		timeBase.setRunning(true, 2, 2);
		counter.stepAtomic();
		counter.stepAtomic();
		counter.stepAtomic();
		counter.stepAtomic();
		assertEquals(4, counter.getCountLocked(BatteryStats.STATS_SINCE_CHARGED));
		assertEquals(4, counter.getCountLocked(BatteryStats.STATS_CURRENT));
		assertEquals(4, counter.getCountLocked(BatteryStats.STATS_SINCE_UNPLUGGED));

		// timeBase off (i.e. plugged in)
		timeBase.setRunning(false, 3, 3);
		counter.stepAtomic();
		counter.stepAtomic();
		counter.stepAtomic();
		assertEquals(4, counter.getCountLocked(BatteryStats.STATS_SINCE_CHARGED));
		assertEquals(4, counter.getCountLocked(BatteryStats.STATS_CURRENT));
		assertEquals(4, counter.getCountLocked(BatteryStats.STATS_SINCE_UNPLUGGED));

		// timeBase on (i.e. unplugged)
		timeBase.setRunning(true, 4, 4);
		counter.stepAtomic();
		counter.stepAtomic();
		assertEquals(6, counter.getCountLocked(BatteryStats.STATS_SINCE_CHARGED));
		assertEquals(6, counter.getCountLocked(BatteryStats.STATS_CURRENT));
		assertEquals(2, counter.getCountLocked(BatteryStats.STATS_SINCE_UNPLUGGED));
		}


		@SmallTest
		public void testParceling() throws Exception {
		final MockClocks clocks = new MockClocks(); // holds realtime and uptime in ms
		final BatteryStatsImpl.TimeBase timeBase = new BatteryStatsImpl.TimeBase();
		timeBase.init(clocks.uptimeMillis(), clocks.elapsedRealtime());

		final BatteryStatsImpl.Counter origCounter = new BatteryStatsImpl.Counter(timeBase);

		// timeBase on (i.e. unplugged)
		timeBase.setRunning(true, 1, 1);
		origCounter.stepAtomic(); origCounter.stepAtomic(); origCounter.stepAtomic(); // three times
		assertEquals(3, origCounter.getCountLocked(BatteryStats.STATS_SINCE_CHARGED));
		assertEquals(3, origCounter.getCountLocked(BatteryStats.STATS_CURRENT));
		assertEquals(3, origCounter.getCountLocked(BatteryStats.STATS_SINCE_UNPLUGGED));

		// Test summary parcelling (from origCounter)
		final Parcel summaryParcel = Parcel.obtain();
		origCounter.writeSummaryFromParcelLocked(summaryParcel);
		summaryParcel.setDataPosition(0);
		final BatteryStatsImpl.Counter summaryCounter = new BatteryStatsImpl.Counter(timeBase);
		summaryCounter.stepAtomic(); // occurs before reading the summary, so must not count later
		summaryCounter.readSummaryFromParcelLocked(summaryParcel);

		// timeBase still on (i.e. unplugged)
		summaryCounter.stepAtomic(); // once
		assertEquals(4, summaryCounter.getCountLocked(BatteryStats.STATS_SINCE_CHARGED));
		assertEquals(1, summaryCounter.getCountLocked(BatteryStats.STATS_CURRENT));
		assertEquals(1, summaryCounter.getCountLocked(BatteryStats.STATS_SINCE_UNPLUGGED));

		// timeBase off (i.e. plugged in)
		timeBase.setRunning(false, 3, 3);
		summaryCounter.stepAtomic(); summaryCounter.stepAtomic(); // twice
		assertEquals(4, summaryCounter.getCountLocked(BatteryStats.STATS_SINCE_CHARGED));
		assertEquals(1, summaryCounter.getCountLocked(BatteryStats.STATS_CURRENT));
		assertEquals(1, summaryCounter.getCountLocked(BatteryStats.STATS_SINCE_UNPLUGGED));

		// timeBase on (i.e. unplugged)
		timeBase.setRunning(true, 4, 4);
		summaryCounter.stepAtomic(); summaryCounter.stepAtomic(); // twice
		assertEquals(6, summaryCounter.getCountLocked(BatteryStats.STATS_SINCE_CHARGED));
		assertEquals(3, summaryCounter.getCountLocked(BatteryStats.STATS_CURRENT));
		assertEquals(2, summaryCounter.getCountLocked(BatteryStats.STATS_SINCE_UNPLUGGED));


		// Test full parcelling (from summaryCounter)
		final Parcel fullParcel = Parcel.obtain();
		summaryCounter.writeToParcel(fullParcel);
		fullParcel.setDataPosition(0);
		final BatteryStatsImpl.Counter fullParcelCounter
		= new BatteryStatsImpl.Counter(timeBase, fullParcel);

		// timeBase still on (i.e. unplugged)
		fullParcelCounter.stepAtomic(); // once
		assertEquals(7, fullParcelCounter.getCountLocked(BatteryStats.STATS_SINCE_CHARGED));
		assertEquals(4, fullParcelCounter.getCountLocked(BatteryStats.STATS_CURRENT));
		assertEquals(3, fullParcelCounter.getCountLocked(BatteryStats.STATS_SINCE_UNPLUGGED));

		// timeBase off (i.e. plugged in)
		timeBase.setRunning(false, 5, 5);
		fullParcelCounter.stepAtomic(); fullParcelCounter.stepAtomic(); // twice
		assertEquals(7, fullParcelCounter.getCountLocked(BatteryStats.STATS_SINCE_CHARGED));
		assertEquals(4, fullParcelCounter.getCountLocked(BatteryStats.STATS_CURRENT));
		assertEquals(3, fullParcelCounter.getCountLocked(BatteryStats.STATS_SINCE_UNPLUGGED));

		// timeBase on (i.e. unplugged)
		timeBase.setRunning(true, 6, 6);
		fullParcelCounter.stepAtomic(); fullParcelCounter.stepAtomic(); // twice
		assertEquals(9, fullParcelCounter.getCountLocked(BatteryStats.STATS_SINCE_CHARGED));
		assertEquals(6, fullParcelCounter.getCountLocked(BatteryStats.STATS_CURRENT));
		assertEquals(2, fullParcelCounter.getCountLocked(BatteryStats.STATS_SINCE_UNPLUGGED));
		}
		}

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

+4 −3

Original line number	Diff line number	Diff line
		@@ -5,17 +5,18 @@ import org.junit.runners.Suite;

		@RunWith(Suite.class)
		@Suite.SuiteClasses({
		BatteryStatsBackgroundStatsTest.class,
		BatteryStatsCounterTest.class,
		BatteryStatsDualTimerTest.class,
		BatteryStatsDurationTimerTest.class,
		BatteryStatsNoteTest.class,
		BatteryStatsSamplingTimerTest.class,
		BatteryStatsSensorTest.class,
		BatteryStatsServTest.class,
		BatteryStatsStopwatchTimerTest.class,
		BatteryStatsTimeBaseTest.class,
		BatteryStatsTimerTest.class,
		BatteryStatsUidTest.class,
		BatteryStatsSensorTest.class,
		BatteryStatsBackgroundStatsTest.class,
		BatteryStatsNoteTest.class,
		})
		public class BatteryStatsTests {
		}