1/*
2 * Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25#ifndef SHARE_MEMORY_REFERENCETYPE_HPP
26#define SHARE_MEMORY_REFERENCETYPE_HPP
27
28#include "utilities/debug.hpp"
29
30// ReferenceType is used to distinguish between java/lang/ref/Reference subclasses
31
32enum ReferenceType {
33 REF_NONE, // Regular class
34 REF_OTHER, // Subclass of java/lang/ref/Reference, but not subclass of one of the classes below
35 REF_SOFT, // Subclass of java/lang/ref/SoftReference
36 REF_WEAK, // Subclass of java/lang/ref/WeakReference
37 REF_FINAL, // Subclass of java/lang/ref/FinalReference
38 REF_PHANTOM // Subclass of java/lang/ref/PhantomReference
39};
40
41#endif // SHARE_MEMORY_REFERENCETYPE_HPP
42