1/*
2 * Copyright (c) 2014, 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
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23 */
24
25#ifndef SHARE_JFR_LEAKPROFILER_CHAINS_EDGE_HPP
26#define SHARE_JFR_LEAKPROFILER_CHAINS_EDGE_HPP
27
28#include "memory/allocation.hpp"
29#include "oops/oopsHierarchy.hpp"
30
31class Edge {
32 protected:
33 const Edge* _parent;
34 const oop* _reference;
35 public:
36 Edge();
37 Edge(const Edge* parent, const oop* reference);
38
39 const oop* reference() const {
40 return _reference;
41 }
42 const Edge* parent() const {
43 return _parent;
44 }
45 bool is_root() const {
46 return _parent == NULL;
47 }
48 const oop pointee() const;
49 const Klass* pointee_klass() const;
50 const oop reference_owner() const;
51 const Klass* reference_owner_klass() const;
52 size_t distance_to_root() const;
53
54 void* operator new (size_t sz, void* here) {
55 return here;
56 }
57};
58
59#endif // SHARE_JFR_LEAKPROFILER_CHAINS_EDGE_HPP
60