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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.server.cts.storaged;
     18 
     19 import android.app.Service;
     20 import android.content.Intent;
     21 import android.os.Handler;
     22 import android.os.HandlerThread;
     23 import android.os.IBinder;
     24 import android.os.Looper;
     25 import android.os.Message;
     26 import android.os.Process;
     27 
     28 import java.io.File;
     29 import java.io.FileWriter;
     30 import java.io.IOException;
     31 
     32 public class SimpleIOService extends Service {
     33     private Looper mServiceLooper;
     34     private ServiceHandler mServiceHandler;
     35 
     36     private final class ServiceHandler extends Handler {
     37         public ServiceHandler(Looper looper) {
     38             super(looper);
     39         }
     40 
     41         @Override
     42         public void handleMessage(Message msg) {
     43             File testFile = new File(getFilesDir(), "StoragedTest_Temp_BG");
     44             try {
     45                 char data[] = new char[4096];
     46                 FileWriter w = new FileWriter(testFile);
     47                 w.write(data);
     48                 w.flush();
     49                 w.close();
     50             } catch (IOException e) {
     51                 throw new RuntimeException(e);
     52             } finally {
     53                 // Stop the service using the startId, so that we don't stop
     54                 // the service in the middle of handling another job
     55                 stopSelf(msg.arg1);
     56             }
     57         }
     58     }
     59 
     60     @Override
     61     public void onCreate() {
     62         // Start up the thread running the service.  Note that we create a
     63         // separate thread because the service normally runs in the process's
     64         // main thread, which we don't want to block.  We also make it
     65         // background priority so CPU-intensive work will not disrupt our UI.
     66         HandlerThread thread = new HandlerThread("ServiceStartArguments",
     67                 Process.THREAD_PRIORITY_BACKGROUND);
     68         thread.start();
     69 
     70         // Get the HandlerThread's Looper and use it for our Handler
     71         mServiceLooper = thread.getLooper();
     72         mServiceHandler = new ServiceHandler(mServiceLooper);
     73     }
     74 
     75     @Override
     76     public int onStartCommand(Intent intent, int flags, int startId) {
     77         Message msg = mServiceHandler.obtainMessage();
     78         msg.arg1 = startId;
     79         mServiceHandler.sendMessage(msg);
     80 
     81         return START_NOT_STICKY;
     82     }
     83 
     84     @Override
     85     public IBinder onBind(Intent intent) {
     86         return null;
     87     }
     88 }
     89