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Merge "Fix recording of battery history tags" into tm-dev

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This commit is contained in:
Dmitri Plotnikov
2022-05-09 17:56:17 +00:00
committed by Android (Google) Code Review
parent 75577e9421 44cb0c4e31
commit f19925afc9
2 changed files with 21 additions and 5 deletions
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5
core/java/com/android/internal/os/BatteryStatsImpl.java
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@@ -167,7 +167,7 @@ public class BatteryStatsImpl extends BatteryStats {
private static final int MAGIC = 0xBA757475; // 'BATSTATS'
// Current on-disk Parcel version
static final int VERSION = 207;
static final int VERSION = 208;
// The maximum number of names wakelocks we will keep track of
// per uid; once the limit is reached, we batch the remaining wakelocks
@@ -3981,8 +3981,7 @@ public class BatteryStatsImpl extends BatteryStats {
if (idxObj != null) {
idx = idxObj;
if ((idx & TAG_FIRST_OCCURRENCE_FLAG) != 0) {
idx &= ~TAG_FIRST_OCCURRENCE_FLAG;
mHistoryTagPool.put(tag, idx);
mHistoryTagPool.put(tag, idx & ~TAG_FIRST_OCCURRENCE_FLAG);
}
return idx;
} else if (mNextHistoryTagIdx < HISTORY_TAG_INDEX_LIMIT) {

21
core/tests/coretests/src/com/android/internal/os/BatteryStatsHistoryIteratorTest.java
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@@ -35,6 +35,7 @@ import java.io.File;
@RunWith(AndroidJUnit4.class)
@SmallTest
@SuppressWarnings("GuardedBy")
public class BatteryStatsHistoryIteratorTest {
private static final int APP_UID = Process.FIRST_APPLICATION_UID + 42;
@@ -124,7 +125,10 @@ public class BatteryStatsHistoryIteratorTest {
// More than 32k strings
final int eventCount = 0x7FFF + 100;
for (int i = 0; i < eventCount; i++) {
mBatteryStats.noteAlarmStartLocked("a" + i, null, APP_UID, 3_000_000, 2_000_000);
// Names repeat in order to verify de-duping of identical history tags.
String name = "a" + (i % 10);
mBatteryStats.noteAlarmStartLocked(name, null, APP_UID, 3_000_000, 2_000_000);
mBatteryStats.noteAlarmFinishLocked(name, null, APP_UID, 3_500_000, 2_500_000);
}
final BatteryStatsHistoryIterator iterator =
@@ -149,10 +153,23 @@ public class BatteryStatsHistoryIteratorTest {
assertThat(item.time).isEqualTo(2_000_000);
for (int i = 0; i < eventCount; i++) {
String name = "a" + (i % 10);
assertThat(iterator.next(item)).isTrue();
// Skip a blank event inserted at the start of every buffer
if (item.eventCode == BatteryStats.HistoryItem.EVENT_NONE) {
assertThat(iterator.next(item)).isTrue();
}
assertThat(item.eventCode).isEqualTo(BatteryStats.HistoryItem.EVENT_ALARM
| BatteryStats.HistoryItem.EVENT_FLAG_START);
assertThat(item.eventTag.string).isEqualTo("a" + i);
assertThat(item.eventTag.string).isEqualTo(name);
assertThat(iterator.next(item)).isTrue();
if (item.eventCode == BatteryStats.HistoryItem.EVENT_NONE) {
assertThat(iterator.next(item)).isTrue();
}
assertThat(item.eventCode).isEqualTo(BatteryStats.HistoryItem.EVENT_ALARM
| BatteryStats.HistoryItem.EVENT_FLAG_FINISH);
assertThat(item.eventTag.string).isEqualTo(name);
}
assertThat(iterator.next(item)).isFalse();