annotate agent/src/share/classes/sun/jvm/hotspot/oops/LongField.java @ 113:ba764ed4b6f2

6420645: Create a vm that uses compressed oops for up to 32gb heapsizes Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
author coleenp
date Sun, 13 Apr 2008 17:43:42 -0400
parents a61af66fc99e
children c18cbe5936b8
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1 /*
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2 * Copyright 2000-2001 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.oops;
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26
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27 import sun.jvm.hotspot.debugger.*;
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28
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29 // The class for a long field simply provides access to the value.
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30 public class LongField extends Field {
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31 public LongField(FieldIdentifier id, long offset, boolean isVMField) {
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32 super(id, offset, isVMField);
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33 }
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34
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35 public LongField(sun.jvm.hotspot.types.JLongField vmField, long startOffset) {
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36 super(new NamedFieldIdentifier(vmField.getName()), vmField.getOffset() + startOffset, true);
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37 }
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38
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39 public LongField(InstanceKlass holder, int fieldArrayIndex) {
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40 super(holder, fieldArrayIndex);
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41 }
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42
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43 public long getValue(Oop obj) { return obj.getHandle().getJLongAt(getOffset()); }
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44 public void setValue(Oop obj, long value) {
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45 // Fix this: setJLongAt is missing in Address
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46 }
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47 }