Mercurial > hg > truffle

view src/share/vm/memory/referenceType.hpp @ 20304:a22acf6d7598

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8048112: G1 Full GC needs to support the case when the very first region is not available Summary: Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett. Reviewed-by: brutisso
author tschatzl
date Mon, 21 Jul 2014 10:00:31 +0200
parents f2110083203d
children 01dcaba9b3f3
line wrap: on
line source

/*
 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

#ifndef SHARE_VM_MEMORY_REFRERENCETYPE_HPP
#define SHARE_VM_MEMORY_REFRERENCETYPE_HPP

#include "utilities/debug.hpp"

// ReferenceType is used to distinguish between java/lang/ref/Reference subclasses

enum ReferenceType {
  REF_NONE,      // Regular class
  REF_OTHER,     // Subclass of java/lang/ref/Reference, but not subclass of one of the classes below
  REF_SOFT,      // Subclass of java/lang/ref/SoftReference
  REF_WEAK,      // Subclass of java/lang/ref/WeakReference
  REF_FINAL,     // Subclass of java/lang/ref/FinalReference
  REF_PHANTOM    // Subclass of java/lang/ref/PhantomReference
};

#endif // SHARE_VM_MEMORY_REFRERENCETYPE_HPP