hotspot/agent/src/share/classes/sun/jvm/hotspot/oops/IntField.java
author coleenp
Sat, 01 Sep 2012 13:25:18 -0400
changeset 13728 882756847a04
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permissions -rw-r--r--
6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
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/*
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 * Copyright (c) 2000, 2012, 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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 */
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package sun.jvm.hotspot.oops;
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import sun.jvm.hotspot.debugger.*;
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import sun.jvm.hotspot.runtime.VMObject;
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// The class for an int field simply provides access to the value.
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public class IntField extends Field {
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  public IntField(FieldIdentifier id, long offset, boolean isVMField) {
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    super(id, offset, isVMField);
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  }
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  public IntField(sun.jvm.hotspot.types.JIntField vmField, long startOffset) {
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    super(new NamedFieldIdentifier(vmField.getName()), vmField.getOffset() + startOffset, true);
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  }
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  public IntField(InstanceKlass holder, int fieldArrayIndex) {
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    super(holder, fieldArrayIndex);
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  }
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  public int getValue(Oop obj) {
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    if (!isVMField() && !obj.isInstance() && !obj.isArray()) {
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      throw new InternalError(obj.toString());
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    }
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    return obj.getHandle().getJIntAt(getOffset());
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  }
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  public int getValue(VMObject obj) {
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    return obj.getAddress().getJIntAt(getOffset());
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  }
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  public void setValue(Oop obj, int value) throws MutationException {
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    // Fix this: setJIntAt is missing in Address
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  }
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}