Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/runtime/PerfDataPrologue.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 2004 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.*; import sun.jvm.hotspot.oops.*; import sun.jvm.hotspot.types.*; public class PerfDataPrologue extends VMObject { private static JIntField magicField; private static JByteField byteOrderField; private static JByteField majorVersionField; private static JByteField minorVersionField; private static JByteField accessibleField; private static JIntField usedField; private static JIntField overflowField; private static JLongField modTimeStampField; private static JIntField entryOffsetField; private static JIntField numEntriesField; static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } private static synchronized void initialize(TypeDataBase db) { Type type = db.lookupType("PerfDataPrologue"); magicField = type.getJIntField("magic"); byteOrderField = type.getJByteField("byte_order"); majorVersionField = type.getJByteField("major_version"); minorVersionField = type.getJByteField("minor_version"); accessibleField = type.getJByteField("accessible"); usedField = type.getJIntField("used"); overflowField = type.getJIntField("overflow"); modTimeStampField = type.getJLongField("mod_time_stamp"); entryOffsetField = type.getJIntField("entry_offset"); numEntriesField = type.getJIntField("num_entries"); } public PerfDataPrologue(Address addr) { super(addr); } // Accessors public int magic() { return (int) magicField.getValue(addr); } public byte byteOrder() { return (byte) byteOrderField.getValue(addr); } public byte majorVersion() { return (byte) majorVersionField.getValue(addr); } public boolean accessible() { return ((byte) accessibleField.getValue(addr)) != (byte)0; } public int used() { return (int) usedField.getValue(addr); } public int overflow() { return (int) overflowField.getValue(addr); } public long modTimeStamp() { return (long) modTimeStampField.getValue(addr); } public int entryOffset() { return (int) entryOffsetField.getValue(addr); } public int numEntries() { return (int) numEntriesField.getValue(addr); } }