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.
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_GC_SHARED_MARKBITMAP_INLINE_HPP
26#define SHARE_GC_SHARED_MARKBITMAP_INLINE_HPP
27
28#include "gc/shared/collectedHeap.hpp"
29#include "gc/shared/markBitMap.hpp"
30#include "memory/memRegion.hpp"
31#include "utilities/align.hpp"
32#include "utilities/bitMap.inline.hpp"
33
34inline HeapWord* MarkBitMap::get_next_marked_addr(const HeapWord* addr,
35 const HeapWord* limit) const {
36 assert(limit != NULL, "limit must not be NULL");
37 // Round addr up to a possible object boundary to be safe.
38 size_t const addr_offset = addr_to_offset(align_up(addr, HeapWordSize << _shifter));
39 size_t const limit_offset = addr_to_offset(limit);
40 size_t const nextOffset = _bm.get_next_one_offset(addr_offset, limit_offset);
41 return offset_to_addr(nextOffset);
42}
43
44inline void MarkBitMap::mark(HeapWord* addr) {
45 check_mark(addr);
46 _bm.set_bit(addr_to_offset(addr));
47}
48
49inline void MarkBitMap::clear(HeapWord* addr) {
50 check_mark(addr);
51 _bm.clear_bit(addr_to_offset(addr));
52}
53
54inline bool MarkBitMap::par_mark(HeapWord* addr) {
55 check_mark(addr);
56 return _bm.par_set_bit(addr_to_offset(addr));
57}
58
59inline bool MarkBitMap::par_mark(oop obj) {
60 return par_mark((HeapWord*) obj);
61}
62
63inline bool MarkBitMap::is_marked(oop obj) const{
64 return is_marked((HeapWord*) obj);
65}
66
67inline void MarkBitMap::clear(oop obj) {
68 clear((HeapWord*) obj);
69}
70
71#endif // SHARE_GC_SHARED_MARKBITMAP_INLINE_HPP
72