1 /*
2  * Copyright (C) 2008 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;
18 
19 import android.os.Handler;
20 import android.os.HandlerThread;
21 import android.os.Looper;
22 import android.os.Process;
23 import android.os.StrictMode;
24 
25 /**
26  * Special handler thread that we create for system services that require their own loopers.
27  */
28 public class ServiceThread extends HandlerThread {
29     private static final String TAG = "ServiceThread";
30 
31     private final boolean mAllowIo;
32 
ServiceThread(String name, int priority, boolean allowIo)33     public ServiceThread(String name, int priority, boolean allowIo) {
34         super(name, priority);
35         mAllowIo = allowIo;
36     }
37 
38     @Override
run()39     public void run() {
40         Process.setCanSelfBackground(false);
41 
42         if (!mAllowIo) {
43             StrictMode.initThreadDefaults(null);
44         }
45 
46         super.run();
47     }
48 
makeSharedHandler(Looper looper)49     protected static Handler makeSharedHandler(Looper looper) {
50         return new Handler(looper, /*callback=*/ null, /* async=*/ false, /* shared=*/ true);
51     }
52 }
53