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-rw-r--r--core/java/com/android/internal/os/BatteryStatsHistory.java15
-rw-r--r--services/tests/powerstatstests/src/com/android/server/power/stats/BatteryStatsHistoryTest.java28
2 files changed, 31 insertions, 12 deletions
diff --git a/core/java/com/android/internal/os/BatteryStatsHistory.java b/core/java/com/android/internal/os/BatteryStatsHistory.java
index 8151429f9139..f1c47a7a023b 100644
--- a/core/java/com/android/internal/os/BatteryStatsHistory.java
+++ b/core/java/com/android/internal/os/BatteryStatsHistory.java
@@ -760,9 +760,20 @@ public class BatteryStatsHistory {
break;
}
- if (fragment.monotonicTimeMs >= startTimeMs && fragment != mActiveFragment) {
- containers.add(new BatteryHistoryParcelContainer(fragment));
+ if (fragment.monotonicTimeMs >= mHistoryBufferStartTime) {
+ // Do not include the backup of the current buffer, which is explicitly
+ // included later
+ continue;
}
+
+ if (i < fragments.size() - 1
+ && fragments.get(i + 1).monotonicTimeMs < startTimeMs) {
+ // Since fragments are ordered, an early start of next fragment implies an
+ // early end for this one.
+ continue;
+ }
+
+ containers.add(new BatteryHistoryParcelContainer(fragment));
}
}
diff --git a/services/tests/powerstatstests/src/com/android/server/power/stats/BatteryStatsHistoryTest.java b/services/tests/powerstatstests/src/com/android/server/power/stats/BatteryStatsHistoryTest.java
index fc864dd230d9..3ed4a52bed23 100644
--- a/services/tests/powerstatstests/src/com/android/server/power/stats/BatteryStatsHistoryTest.java
+++ b/services/tests/powerstatstests/src/com/android/server/power/stats/BatteryStatsHistoryTest.java
@@ -343,12 +343,13 @@ public class BatteryStatsHistoryTest {
assertThat(mReadFiles).containsExactly("123.bh", "1000.bh");
} else if (item.eventCode == HistoryItem.EVENT_ALARM) {
eventsRead++;
- assertThat(mReadFiles).containsExactly("123.bh", "1000.bh", "2000.bh");
+ // This event is in the current buffer, so 2000.bh shouldn't be read from disk
+ assertThat(mReadFiles).containsExactly("123.bh", "1000.bh");
}
}
assertThat(eventsRead).isEqualTo(3);
- assertThat(mReadFiles).containsExactly("123.bh", "1000.bh", "2000.bh", "3000.bh");
+ assertThat(mReadFiles).containsExactly("123.bh", "1000.bh");
}
@Test
@@ -366,34 +367,41 @@ public class BatteryStatsHistoryTest {
return invocation.callRealMethod();
}).when(mHistory).readFragmentToParcel(any(), any());
- BatteryStatsHistoryIterator iterator = mHistory.iterate(1000, 3000);
+ int eventsRead = 0;
+ BatteryStatsHistoryIterator iterator = mHistory.iterate(1001, 3000);
while (iterator.hasNext()) {
HistoryItem item = iterator.next();
if (item.eventCode == HistoryItem.EVENT_JOB_START) {
fail("Event outside the range");
} else if (item.eventCode == HistoryItem.EVENT_JOB_FINISH) {
+ eventsRead++;
assertThat(mReadFiles).containsExactly("1000.bh");
} else if (item.eventCode == HistoryItem.EVENT_ALARM) {
fail("Event outside the range");
}
}
- assertThat(mReadFiles).containsExactly("1000.bh", "2000.bh");
+ assertThat(eventsRead).isEqualTo(1);
+ assertThat(mReadFiles).containsExactly("1000.bh");
}
private void prepareMultiFileHistory() {
- mClock.realtime = 1000;
- mClock.uptime = 1000;
+ mClock.realtime = 500;
+ mClock.uptime = 500;
mHistory.recordEvent(mClock.realtime, mClock.uptime,
BatteryStats.HistoryItem.EVENT_JOB_START, "job", 42);
+ mClock.realtime = 1000;
+ mClock.uptime = 1000;
mHistory.startNextFragment(mClock.realtime); // 1000.bh
- mClock.realtime = 2000;
- mClock.uptime = 2000;
+ mClock.realtime = 1500;
+ mClock.uptime = 1500;
mHistory.recordEvent(mClock.realtime, mClock.uptime,
BatteryStats.HistoryItem.EVENT_JOB_FINISH, "job", 42);
+ mClock.realtime = 2000;
+ mClock.uptime = 2000;
mHistory.startNextFragment(mClock.realtime); // 2000.bh
mClock.realtime = 3000;
@@ -401,8 +409,8 @@ public class BatteryStatsHistoryTest {
mHistory.recordEvent(mClock.realtime, mClock.uptime,
HistoryItem.EVENT_ALARM, "alarm", 42);
- // Flush accumulated history to disk
- mHistory.startNextFragment(mClock.realtime);
+ // Back up accumulated history to disk
+ mHistory.writeHistory();
}
private void verifyActiveFile(BatteryStatsHistory history, String file) {