import android.os.StrictMode;
import android.os.SystemClock;
+import com.android.internal.annotations.GuardedBy;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.util.ArrayUtils;
import com.android.internal.util.ProcFileReader;
private boolean mUseBpfStats;
// A persistent Snapshot since device start for eBPF stats
+ @GuardedBy("mPersistSnapshot")
private final NetworkStats mPersistSnapshot;
// TODO: only do adjustments in NetworkStatsService and remove this.
stats = new NetworkStats(SystemClock.elapsedRealtime(), -1);
}
if (mUseBpfStats) {
- if (nativeReadNetworkStatsDetail(stats, mStatsXtUid.getAbsolutePath(), UID_ALL,
- null, TAG_ALL, mUseBpfStats) != 0) {
- throw new IOException("Failed to parse network stats");
+ synchronized (mPersistSnapshot) {
+ if (nativeReadNetworkStatsDetail(stats, mStatsXtUid.getAbsolutePath(), UID_ALL,
+ null, TAG_ALL, mUseBpfStats) != 0) {
+ throw new IOException("Failed to parse network stats");
+ }
+ mPersistSnapshot.setElapsedRealtime(stats.getElapsedRealtime());
+ mPersistSnapshot.combineAllValues(stats);
+ NetworkStats result = mPersistSnapshot.clone();
+ result.filter(limitUid, limitIfaces, limitTag);
+ return result;
}
- mPersistSnapshot.setElapsedRealtime(stats.getElapsedRealtime());
- mPersistSnapshot.combineAllValues(stats);
- NetworkStats result = mPersistSnapshot.clone();
- result.filter(limitUid, limitIfaces, limitTag);
- return result;
} else {
if (nativeReadNetworkStatsDetail(stats, mStatsXtUid.getAbsolutePath(), limitUid,
limitIfaces, limitTag, mUseBpfStats) != 0) {