66 lines
2.5 KiB
Java
66 lines
2.5 KiB
Java
/*
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* Copyright (c) 2010, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package vm.gc.containers;
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import nsk.share.gc.Memory;
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import nsk.share.gc.gp.GarbageProducer;
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import nsk.share.gc.gp.MemoryStrategy;
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import nsk.share.test.ExecutionController;
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public interface Container {
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public void setExecutionController(ExecutionController stresser);
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public void initialize();
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public void update();
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}
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abstract class TypicalContainer implements Container {
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protected ExecutionController stresser;
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protected long count;
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protected long size;
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protected GarbageProducer garbageProducer;
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protected Speed speed;
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public TypicalContainer(long maximumSize, GarbageProducer garbageProducer,
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MemoryStrategy memoryStrategy, Speed speed) {
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this.count = memoryStrategy.getCount(maximumSize);
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this.size = memoryStrategy.getSize(maximumSize);
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// typical container have at least reference to other element
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// and to data which is really size of "size" really for 100 bytes
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// overhead is about 50%
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final int structureOverHead = 6 * Memory.getReferenceSize();
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if (this.size < structureOverHead * 100) {
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this.count = this.count * (this.size - structureOverHead) / this.size;
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}
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this.garbageProducer = garbageProducer;
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this.speed = speed;
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System.err.format("Creating container: size = %s count = %s\n", size, count);
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}
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public void setExecutionController(ExecutionController stresser) {
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this.stresser = stresser;
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}
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}
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