| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.settingslib.development; |
| |
| import android.os.AsyncTask; |
| import android.os.IBinder; |
| import android.os.Parcel; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import androidx.annotation.NonNull; |
| import androidx.annotation.VisibleForTesting; |
| import android.util.Log; |
| |
| public class SystemPropPoker { |
| private static final String TAG = "SystemPropPoker"; |
| |
| private static final SystemPropPoker sInstance = new SystemPropPoker(); |
| |
| private boolean mBlockPokes = false; |
| |
| private SystemPropPoker() {} |
| |
| @NonNull |
| public static SystemPropPoker getInstance() { |
| return sInstance; |
| } |
| |
| public void blockPokes() { |
| mBlockPokes = true; |
| } |
| |
| public void unblockPokes() { |
| mBlockPokes = false; |
| } |
| |
| public void poke() { |
| if (!mBlockPokes) { |
| createPokerTask().execute(); |
| } |
| } |
| |
| @VisibleForTesting |
| PokerTask createPokerTask() { |
| return new PokerTask(); |
| } |
| |
| public static class PokerTask extends AsyncTask<Void, Void, Void> { |
| |
| @VisibleForTesting |
| String[] listServices() { |
| return ServiceManager.listServices(); |
| } |
| |
| @VisibleForTesting |
| IBinder checkService(String service) { |
| return ServiceManager.checkService(service); |
| } |
| |
| @Override |
| protected Void doInBackground(Void... params) { |
| String[] services = listServices(); |
| if (services == null) { |
| Log.e(TAG, "There are no services, how odd"); |
| return null; |
| } |
| for (String service : services) { |
| IBinder obj = checkService(service); |
| if (obj != null) { |
| Parcel data = Parcel.obtain(); |
| try { |
| obj.transact(IBinder.SYSPROPS_TRANSACTION, data, null, 0); |
| } catch (RemoteException e) { |
| // Ignore |
| } catch (Exception e) { |
| Log.i(TAG, "Someone wrote a bad service '" + service |
| + "' that doesn't like to be poked", e); |
| } |
| data.recycle(); |
| } |
| } |
| return null; |
| } |
| } |
| } |