1/*
2 * Copyright (c) 2015, 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#ifndef SHARE_GC_Z_ZPAGETABLE_HPP
25#define SHARE_GC_Z_ZPAGETABLE_HPP
26
27#include "gc/z/zGranuleMap.hpp"
28#include "memory/allocation.hpp"
29
30class ZPage;
31
32class ZPageTable {
33 friend class VMStructs;
34 friend class ZPageTableIterator;
35
36private:
37 ZGranuleMap<ZPage*> _map;
38
39public:
40 ZPageTable();
41
42 ZPage* get(uintptr_t addr) const;
43
44 void insert(ZPage* page);
45 void remove(ZPage* page);
46};
47
48class ZPageTableIterator : public StackObj {
49private:
50 ZGranuleMapIterator<ZPage*> _iter;
51 ZPage* _prev;
52
53public:
54 ZPageTableIterator(const ZPageTable* page_table);
55
56 bool next(ZPage** page);
57};
58
59#endif // SHARE_GC_Z_ZPAGETABLE_HPP
60