| /* |
| * Copyright (c) 2010, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package gc.lock; |
| |
| import nsk.share.runner.*; |
| import nsk.share.gc.*; |
| import nsk.share.gc.gp.*; |
| import nsk.share.gc.lock.*; |
| import nsk.share.test.ExecutionController; |
| |
| /** |
| * Test how GC is affected by locking. |
| * |
| * A number of threads is started. Each one locks and eats memory. |
| */ |
| public class LockerTest extends ThreadedGCTest implements GarbageProducerAware, GarbageProducer1Aware, LockersAware { |
| |
| private GarbageProducer garbageProducer; |
| private GarbageProducer garbageProducer1; |
| private Lockers lockers; |
| private long objectSize = 1000; |
| |
| private class Worker implements Runnable { |
| |
| byte[] rezerve = new byte[1024 * 1024]; |
| private Locker locker = lockers.createLocker(garbageProducer1.create(objectSize)); |
| |
| public Worker() { |
| locker.enable(); |
| } |
| |
| public void run() { |
| locker.lock(); |
| GarbageUtils.eatMemory(getExecutionController(), garbageProducer); |
| locker.unlock(); |
| } |
| } |
| |
| protected Runnable createRunnable(int i) { |
| return new Worker(); |
| } |
| |
| public void setGarbageProducer(GarbageProducer garbageProducer) { |
| this.garbageProducer = garbageProducer; |
| } |
| |
| public void setGarbageProducer1(GarbageProducer garbageProducer1) { |
| this.garbageProducer1 = garbageProducer1; |
| } |
| |
| public void setLockers(Lockers lockers) { |
| this.lockers = lockers; |
| } |
| |
| public static void main(String[] args) { |
| RunParams.getInstance().setRunMemDiagThread(false); |
| GC.runTest(new LockerTest(), args); |
| } |
| } |