Merge "Track scan count by UID" (dd73df35) · Commits · e / os / android_frameworks_base

services/java/com/android/server/WifiService.java

+28 −0

Original line number	Diff line number	Diff line
		@@ -61,6 +61,7 @@ import android.text.TextUtils;
		import android.util.Slog;

		import java.util.ArrayList;
		import java.util.HashMap;
		import java.util.List;
		import java.util.Set;
		import java.util.concurrent.atomic.AtomicInteger;
		@@ -112,6 +113,10 @@ public class WifiService extends IWifiManager.Stub {
		private int mScanLocksAcquired;
		private int mScanLocksReleased;

		/* A mapping from UID to scan count */
		private HashMap<Integer, Integer> mScanCount =
		new HashMap<Integer, Integer>();

		private final List<Multicaster> mMulticasters =
		new ArrayList<Multicaster>();
		private int mMulticastEnabled;
		@@ -527,6 +532,15 @@ public class WifiService extends IWifiManager.Stub {
		*/
		public void startScan(boolean forceActive) {
		enforceChangePermission();

		int uid = Binder.getCallingUid();
		int count = 0;
		synchronized (mScanCount) {
		if (mScanCount.containsKey(uid)) {
		count = mScanCount.get(uid);
		}
		mScanCount.put(uid, ++count);
		}
		mWifiStateMachine.startScan(forceActive);
		}

		@@ -990,6 +1004,13 @@ public class WifiService extends IWifiManager.Stub {
		}
		mAlarmManager.set(AlarmManager.RTC_WAKEUP, triggerTime, mIdleIntent);
		}

		//Start scan stats tracking when device unplugged
		if (pluggedType == 0) {
		synchronized (mScanCount) {
		mScanCount.clear();
		}
		}
		mPluggedType = pluggedType;
		} else if (action.equals(BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED)) {
		int state = intent.getIntExtra(BluetoothAdapter.EXTRA_CONNECTION_STATE,
		@@ -1180,6 +1201,13 @@ public class WifiService extends IWifiManager.Stub {
		pw.println("Locks held:");
		mLocks.dump(pw);

		pw.println("Scan count since last plugged in");
		synchronized (mScanCount) {
		for(int sc : mScanCount.keySet()) {
		pw.println("UID: " + sc + " Scan count: " + mScanCount.get(sc));
		}
		}

		pw.println();
		pw.println("WifiWatchdogStateMachine dump");
		mWifiWatchdogStateMachine.dump(pw);