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      1 /*
      2  * Copyright (C) 2010 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 package com.android.gallery3d.util;
     17 
     18 
     19 import android.os.Process;
     20 
     21 import java.util.concurrent.ThreadFactory;
     22 import java.util.concurrent.atomic.AtomicInteger;
     23 
     24 /**
     25  * A thread factory that creates threads with a given thread priority.
     26  */
     27 public class PriorityThreadFactory implements ThreadFactory {
     28 
     29     private final int mPriority;
     30     private final AtomicInteger mNumber = new AtomicInteger();
     31     private final String mName;
     32 
     33     public PriorityThreadFactory(String name, int priority) {
     34         mName = name;
     35         mPriority = priority;
     36     }
     37 
     38     public Thread newThread(Runnable r) {
     39         return new Thread(r, mName + '-' + mNumber.getAndIncrement()) {
     40             @Override
     41             public void run() {
     42                 Process.setThreadPriority(mPriority);
     43                 super.run();
     44             }
     45         };
     46     }
     47 
     48 }
     49