LineageOS/android_packages_modules_Connectivity
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Compute range-based usage in NetworkStatsHistory.

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When given a start/end range, interpolate between buckets to return
the total network usage.  Used to summarize detailed UID stats.  Method
to combine NetworkStatsHistory regardless of bucket size.  Used to
combine all histories matching a template.

Added tests for both methods.

Change-Id: Ia463910c0ecf7cf08dcf97c658ad99742bd6b882
This commit is contained in:
Jeff Sharkey
2011-06-02 17:38:22 -07:00
parent b06fe7ad72
commit 0b1cfc0d55
2 changed files with 56 additions and 3 deletions
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19
services/java/com/android/server/net/NetworkStatsService.java
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@@ -210,7 +210,7 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
for (InterfaceIdentity ident : mSummaryStats.keySet()) {
final NetworkStatsHistory history = mSummaryStats.get(ident);
if (ident.matchesTemplate(networkTemplate, subscriberId)) {
// TODO: combine all matching history data into a single history
combined.recordEntireHistory(history);
}
}
return combined;
@@ -231,8 +231,21 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
// TODO: create relaxed permission for reading stats
mContext.enforceCallingOrSelfPermission(UPDATE_DEVICE_STATS, TAG);
// TODO: total UID-granularity usage between time range
return null;
// TODO: apply networktemplate once granular uid stats are stored.
synchronized (mStatsLock) {
final int size = mDetailStats.size();
final NetworkStats.Builder stats = new NetworkStats.Builder(end - start, size);
final long[] total = new long[2];
for (int i = 0; i < size; i++) {
final int uid = mDetailStats.keyAt(i);
final NetworkStatsHistory history = mDetailStats.valueAt(i);
history.getTotalData(start, end, total);
stats.addEntry(IFACE_ALL, uid, total[0], total[1]);
}
return stats.build();
}
}
/**