diff options
| -rw-r--r-- | core/java/com/android/internal/os/BatteryStatsImpl.java | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/core/java/com/android/internal/os/BatteryStatsImpl.java b/core/java/com/android/internal/os/BatteryStatsImpl.java index 60f47d6..e7c58f4 100644 --- a/core/java/com/android/internal/os/BatteryStatsImpl.java +++ b/core/java/com/android/internal/os/BatteryStatsImpl.java @@ -2560,14 +2560,24 @@ public final class BatteryStatsImpl extends BatteryStats { addHistoryEventLocked(elapsedRealtime, uptime, code, name, uid); } + boolean ensureStartClockTime(final long currentTime) { + final long ABOUT_ONE_YEAR = 365*24*60*60*1000L; + if (currentTime > ABOUT_ONE_YEAR && mStartClockTime < (currentTime-ABOUT_ONE_YEAR)) { + // If the start clock time has changed by more than a year, then presumably + // the previous time was completely bogus. So we are going to figure out a + // new time based on how much time has elapsed since we started counting. + mStartClockTime = currentTime - (SystemClock.elapsedRealtime()-(mRealtimeStart/1000)); + return true; + } + return false; + } + public void noteCurrentTimeChangedLocked() { final long currentTime = System.currentTimeMillis(); final long elapsedRealtime = SystemClock.elapsedRealtime(); final long uptime = SystemClock.uptimeMillis(); recordCurrentTimeChangeLocked(currentTime, elapsedRealtime, uptime); - if (isStartClockTimeValid()) { - mStartClockTime = currentTime; - } + ensureStartClockTime(currentTime); } public void noteProcessStartLocked(String name, int uid) { @@ -4306,19 +4316,11 @@ public final class BatteryStatsImpl extends BatteryStats { } } - boolean isStartClockTimeValid() { - return mStartClockTime > 365*24*60*60*1000L; - } - @Override public long getStartClockTime() { - if (!isStartClockTimeValid()) { - // If the last clock time we got was very small, then we hadn't had a real - // time yet, so try to get it again. - mStartClockTime = System.currentTimeMillis(); - if (isStartClockTimeValid()) { - recordCurrentTimeChangeLocked(mStartClockTime, SystemClock.elapsedRealtime(), - SystemClock.uptimeMillis()); - } + final long currentTime = System.currentTimeMillis(); + if (ensureStartClockTime(currentTime)) { + recordCurrentTimeChangeLocked(currentTime, SystemClock.elapsedRealtime(), + SystemClock.uptimeMillis()); } return mStartClockTime; } |