/* * 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 vm.gc.containers; import nsk.share.gc.Memory; import nsk.share.gc.gp.GarbageProducer; import nsk.share.gc.gp.MemoryStrategy; import nsk.share.test.ExecutionController; public interface Container { public void setExecutionController(ExecutionController stresser); public void initialize(); public void update(); } abstract class TypicalContainer implements Container { protected ExecutionController stresser; protected long count; protected long size; protected GarbageProducer garbageProducer; protected Speed speed; public TypicalContainer(long maximumSize, GarbageProducer garbageProducer, MemoryStrategy memoryStrategy, Speed speed) { this.count = memoryStrategy.getCount(maximumSize); this.size = memoryStrategy.getSize(maximumSize); // typical container have at least reference to other element // and to data which is really size of "size" really for 100 bytes // overhead is about 50% final int structureOverHead = 6 * Memory.getReferenceSize(); if (this.size < structureOverHead * 100) { this.count = this.count * (this.size - structureOverHead) / this.size; } this.garbageProducer = garbageProducer; this.speed = speed; System.err.format("Creating container: size = %s count = %s\n", size, count); } public void setExecutionController(ExecutionController stresser) { this.stresser = stresser; } }