1 /*
   2  * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2020 SAP SE. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 import java.util.Random;
  27 import java.util.concurrent.BrokenBarrierException;
  28 import java.util.concurrent.CyclicBarrier;
  29 
  30 public class RandomAllocatorThread extends Thread {
  31 
  32     public final CyclicBarrier gate;
  33     public final RandomAllocator allocator;
  34     public final int id;
  35 
  36     public RandomAllocatorThread(CyclicBarrier gate, RandomAllocator allocator, int id) {
  37         this.gate = gate;
  38         this.allocator = allocator;
  39         this.id = id;
  40     }
  41 
  42     @Override
  43     public void run() {
  44 
  45        // System.out.println("* [" + id + "] " + allocator);
  46 
  47         try {
  48             if (gate != null) {
  49                 gate.await();
  50             }
  51         } catch (InterruptedException | BrokenBarrierException e) {
  52             // At this point, interrupt would be an error.
  53             e.printStackTrace();
  54             throw new RuntimeException(e);
  55         }
  56 
  57         while (!Thread.interrupted()) {
  58             for (int i = 0; i < 1000; i++) {
  59                 allocator.tick();
  60             }
  61         }
  62 
  63         // System.out.println("+ [" + id + "] " + allocator);
  64 
  65     }
  66 
  67 }