resolve merge conflicts of 551fc6823a to master.
Change-Id: I2778bf2a364c103fc0d351f2afc4fc73bede2f19
diff --git a/services/usage/java/com/android/server/usage/UserUsageStatsService.java b/services/usage/java/com/android/server/usage/UserUsageStatsService.java
index 72621a4..630367d 100644
--- a/services/usage/java/com/android/server/usage/UserUsageStatsService.java
+++ b/services/usage/java/com/android/server/usage/UserUsageStatsService.java
@@ -59,6 +59,7 @@
private final Context mContext;
private final UsageStatsDatabase mDatabase;
private final IntervalStats[] mCurrentStats;
+ private IntervalStats mAppIdleRollingWindow;
private boolean mStatsChanged = false;
private final UnixCalendar mDailyExpiryDate;
private final StatsUpdatedListener mListener;
@@ -137,6 +138,8 @@
initializeDefaultsForApps(currentTimeMillis, deviceUsageTime,
mDatabase.isFirstUpdate());
}
+
+ refreshAppIdleRollingWindow(currentTimeMillis);
}
/**
@@ -170,6 +173,7 @@
persistActiveStats();
mDatabase.onTimeChanged(newTime - oldTime);
loadActiveStats(newTime, resetBeginIdleTime);
+ refreshAppIdleRollingWindow(newTime);
}
void reportEvent(UsageEvents.Event event, long deviceUsageTime) {
@@ -211,6 +215,11 @@
}
}
+ if (event.mEventType != Event.CONFIGURATION_CHANGE) {
+ mAppIdleRollingWindow.update(event.mPackage, event.mTimeStamp, event.mEventType);
+ mAppIdleRollingWindow.updateBeginIdleTime(event.mPackage, deviceUsageTime);
+ }
+
notifyStatsChanged();
}
@@ -222,6 +231,7 @@
for (IntervalStats stats : mCurrentStats) {
stats.updateBeginIdleTime(packageName, beginIdleTime);
}
+ mAppIdleRollingWindow.updateBeginIdleTime(packageName, beginIdleTime);
notifyStatsChanged();
}
@@ -229,6 +239,7 @@
for (IntervalStats stats : mCurrentStats) {
stats.updateSystemLastUsedTime(packageName, lastUsedTime);
}
+ mAppIdleRollingWindow.updateSystemLastUsedTime(packageName, lastUsedTime);
notifyStatsChanged();
}
@@ -387,9 +398,8 @@
}
long getBeginIdleTime(String packageName) {
- final IntervalStats yearly = mCurrentStats[UsageStatsManager.INTERVAL_YEARLY];
UsageStats packageUsage;
- if ((packageUsage = yearly.packageStats.get(packageName)) == null) {
+ if ((packageUsage = mAppIdleRollingWindow.packageStats.get(packageName)) == null) {
return -1;
} else {
return packageUsage.getBeginIdleTime();
@@ -397,9 +407,8 @@
}
long getSystemLastUsedTime(String packageName) {
- final IntervalStats yearly = mCurrentStats[UsageStatsManager.INTERVAL_YEARLY];
UsageStats packageUsage;
- if ((packageUsage = yearly.packageStats.get(packageName)) == null) {
+ if ((packageUsage = mAppIdleRollingWindow.packageStats.get(packageName)) == null) {
return -1;
} else {
return packageUsage.getLastTimeSystemUsed();
@@ -461,6 +470,8 @@
}
persistActiveStats();
+ refreshAppIdleRollingWindow(currentTimeMillis);
+
final long totalTime = SystemClock.elapsedRealtime() - startTime;
Slog.i(TAG, mLogPrefix + "Rolling over usage stats complete. Took " + totalTime
+ " milliseconds");
@@ -503,6 +514,7 @@
}
}
}
+
mStatsChanged = false;
updateRolloverDeadline();
}
@@ -516,6 +528,68 @@
mDailyExpiryDate.getTimeInMillis() + ")");
}
+ private static void mergePackageStats(IntervalStats dst, IntervalStats src) {
+ dst.endTime = Math.max(dst.endTime, src.endTime);
+
+ final int srcPackageCount = src.packageStats.size();
+ for (int i = 0; i < srcPackageCount; i++) {
+ final String packageName = src.packageStats.keyAt(i);
+ final UsageStats srcStats = src.packageStats.valueAt(i);
+ final UsageStats dstStats = dst.packageStats.get(packageName);
+ if (dstStats == null) {
+ dst.packageStats.put(packageName, new UsageStats(srcStats));
+ } else {
+ dstStats.add(src.packageStats.valueAt(i));
+ }
+ }
+ }
+
+ /**
+ * Merges all the stats into the first element of the resulting list.
+ */
+ private static final StatCombiner<IntervalStats> sPackageStatsMerger =
+ new StatCombiner<IntervalStats>() {
+ @Override
+ public void combine(IntervalStats stats, boolean mutable,
+ List<IntervalStats> accumulatedResult) {
+ IntervalStats accum;
+ if (accumulatedResult.isEmpty()) {
+ accum = new IntervalStats();
+ accum.beginTime = stats.beginTime;
+ accumulatedResult.add(accum);
+ } else {
+ accum = accumulatedResult.get(0);
+ }
+
+ mergePackageStats(accum, stats);
+ }
+ };
+
+ /**
+ * App idle operates on a rolling window of time. When we roll over time, we end up with a
+ * period of time where in-memory stats are empty and we don't hit the disk for older stats
+ * for performance reasons. Suddenly all apps will become idle.
+ *
+ * Instead, at times we do a deep query to find all the apps that have run in the past few
+ * days and keep the cached data up to date.
+ *
+ * @param currentTimeMillis
+ */
+ void refreshAppIdleRollingWindow(long currentTimeMillis) {
+ // Start the rolling window for AppIdle requests.
+ List<IntervalStats> stats = mDatabase.queryUsageStats(UsageStatsManager.INTERVAL_DAILY,
+ currentTimeMillis - (1000 * 60 * 60 * 24 * 2), currentTimeMillis,
+ sPackageStatsMerger);
+
+ if (stats == null || stats.isEmpty()) {
+ mAppIdleRollingWindow = new IntervalStats();
+ mergePackageStats(mAppIdleRollingWindow,
+ mCurrentStats[UsageStatsManager.INTERVAL_YEARLY]);
+ } else {
+ mAppIdleRollingWindow = stats.get(0);
+ }
+ }
+
//
// -- DUMP related methods --
//
@@ -538,6 +612,9 @@
pw.println(" stats");
printIntervalStats(pw, mCurrentStats[interval], screenOnTime, true);
}
+
+ pw.println("AppIdleRollingWindow cache");
+ printIntervalStats(pw, mAppIdleRollingWindow, screenOnTime, true);
}
private String formatDateTime(long dateTime, boolean pretty) {