1/*
2 * Copyright (c) 2018, 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.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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23 */
24
25#ifndef SHARE_GC_G1_G1OOPSTARCHUNKEDLIST_HPP
26#define SHARE_GC_G1_G1OOPSTARCHUNKEDLIST_HPP
27
28#include "oops/oopsHierarchy.hpp"
29#include "utilities/chunkedList.hpp"
30
31class OopClosure;
32
33class G1OopStarChunkedList : public CHeapObj<mtGC> {
34 size_t _used_memory;
35
36 ChunkedList<oop*, mtGC>* _roots;
37 ChunkedList<narrowOop*, mtGC>* _croots;
38 ChunkedList<oop*, mtGC>* _oops;
39 ChunkedList<narrowOop*, mtGC>* _coops;
40
41 template <typename T> void delete_list(ChunkedList<T*, mtGC>* c);
42
43 template <typename T>
44 size_t chunks_do(ChunkedList<T*, mtGC>* head,
45 OopClosure* cl);
46
47 template <typename T>
48 inline void push(ChunkedList<T*, mtGC>** field, T* p);
49
50 public:
51 G1OopStarChunkedList() : _used_memory(0), _roots(NULL), _croots(NULL), _oops(NULL), _coops(NULL) {}
52 ~G1OopStarChunkedList();
53
54 size_t used_memory() { return _used_memory; }
55
56 size_t oops_do(OopClosure* obj_cl, OopClosure* root_cl);
57
58 inline void push_oop(oop* p);
59 inline void push_oop(narrowOop* p);
60 inline void push_root(oop* p);
61 inline void push_root(narrowOop* p);
62};
63
64#endif // SHARE_GC_G1_G1OOPSTARCHUNKEDLIST_HPP
65