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-rw-r--r--services/usage/java/com/android/server/usage/UserUsageStatsService.java11
1 files changed, 5 insertions, 6 deletions
diff --git a/services/usage/java/com/android/server/usage/UserUsageStatsService.java b/services/usage/java/com/android/server/usage/UserUsageStatsService.java
index 11c0e4abdb35..9fc1949183f8 100644
--- a/services/usage/java/com/android/server/usage/UserUsageStatsService.java
+++ b/services/usage/java/com/android/server/usage/UserUsageStatsService.java
@@ -136,17 +136,16 @@ class UserUsageStatsService {
}
// During system reboot, add a DEVICE_SHUTDOWN event to the end of event list, the timestamp
- // is last time UsageStatsDatabase is persisted to disk.
+ // is last time UsageStatsDatabase is persisted to disk or the last event's time whichever
+ // is higher (because the file system timestamp is round down to integral seconds).
// Also add a DEVICE_STARTUP event with current system timestamp.
final IntervalStats currentDailyStats = mCurrentStats[INTERVAL_DAILY];
if (currentDailyStats != null) {
- // File system timestamp only has precision of 1 second, add 1000ms to make up
- // for the loss of round up.
- final Event shutdownEvent =
- new Event(DEVICE_SHUTDOWN, currentDailyStats.lastTimeSaved + 1000);
+ final Event shutdownEvent = new Event(DEVICE_SHUTDOWN,
+ Math.max(currentDailyStats.lastTimeSaved, currentDailyStats.endTime));
shutdownEvent.mPackage = Event.DEVICE_EVENT_PACKAGE_NAME;
currentDailyStats.addEvent(shutdownEvent);
- final Event startupEvent = new Event(DEVICE_STARTUP, currentTimeMillis);
+ final Event startupEvent = new Event(DEVICE_STARTUP, System.currentTimeMillis());
startupEvent.mPackage = Event.DEVICE_EVENT_PACKAGE_NAME;
currentDailyStats.addEvent(startupEvent);
}