1/*
2 * Copyright (c) 2018, Red Hat, Inc. All rights reserved.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.
7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 *
22 */
23
24#ifndef SHARE_GC_SHENANDOAH_SHENANDOAHMARKINGCONTEXT_INLINE_HPP
25#define SHARE_GC_SHENANDOAH_SHENANDOAHMARKINGCONTEXT_INLINE_HPP
26
27#include "gc/shenandoah/shenandoahMarkingContext.hpp"
28
29inline MarkBitMap* ShenandoahMarkingContext::mark_bit_map() {
30 return &_mark_bit_map;
31}
32
33inline bool ShenandoahMarkingContext::mark(oop obj) {
34 shenandoah_assert_not_forwarded(NULL, obj);
35 HeapWord* addr = (HeapWord*) obj;
36 return (! allocated_after_mark_start(addr)) && _mark_bit_map.par_mark(addr);
37}
38
39inline bool ShenandoahMarkingContext::is_marked(oop obj) const {
40 HeapWord* addr = (HeapWord*) obj;
41 return allocated_after_mark_start(addr) || _mark_bit_map.is_marked(addr);
42}
43
44inline bool ShenandoahMarkingContext::allocated_after_mark_start(HeapWord* addr) const {
45 uintx index = ((uintx) addr) >> ShenandoahHeapRegion::region_size_bytes_shift();
46 HeapWord* top_at_mark_start = _top_at_mark_starts[index];
47 bool alloc_after_mark_start = addr >= top_at_mark_start;
48 return alloc_after_mark_start;
49}
50
51#endif // SHARE_GC_SHENANDOAH_SHENANDOAHMARKINGCONTEXT_INLINE_HPP
52