Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/runtime/StackValueCollection.java @ 210:05712c37c828
6676016: ParallelOldGC leaks memory
Summary: ensure that GCTask threads release resource and handle memory
Reviewed-by: jmasa, chrisphi
author | jcoomes |
---|---|
date | Wed, 18 Jun 2008 18:36:47 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2001-2003 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ package sun.jvm.hotspot.runtime; import java.util.*; import sun.jvm.hotspot.debugger.*; public class StackValueCollection { private List list; public StackValueCollection() { list = new ArrayList(); } public StackValueCollection(int length) { list = new ArrayList(length); } public void add(StackValue val) { list.add(val); } public int size() { return list.size(); } public boolean isEmpty() { return (size() == 0); } public StackValue get(int i) { return (StackValue) list.get(i); } // Get typed locals/expressions // FIXME: must figure out whether word swapping is necessary on x86 public boolean booleanAt(int slot) { return (int)get(slot).getInteger() != 0; } public byte byteAt(int slot) { return (byte) get(slot).getInteger(); } public char charAt(int slot) { return (char) get(slot).getInteger(); } public short shortAt(int slot) { return (short) get(slot).getInteger(); } public int intAt(int slot) { return (int) get(slot).getInteger(); } public long longAt(int slot) { return VM.getVM().buildLongFromIntsPD((int) get(slot).getInteger(), (int) get(slot+1).getInteger()); } public OopHandle oopHandleAt(int slot) { return get(slot).getObject(); } public float floatAt(int slot) { return Float.intBitsToFloat(intAt(slot)); } public double doubleAt(int slot) { return Double.longBitsToDouble(longAt(slot)); } }