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
21 * questions.
22 */
23
24#ifndef SHARE_GC_G1_G1THREADLOCALDATA_HPP
25#define SHARE_GC_G1_G1THREADLOCALDATA_HPP
26
27#include "gc/g1/g1BarrierSet.hpp"
28#include "gc/g1/g1DirtyCardQueue.hpp"
29#include "gc/shared/satbMarkQueue.hpp"
30#include "runtime/thread.hpp"
31#include "utilities/debug.hpp"
32#include "utilities/sizes.hpp"
33
34class G1ThreadLocalData {
35private:
36 SATBMarkQueue _satb_mark_queue;
37 G1DirtyCardQueue _dirty_card_queue;
38
39 G1ThreadLocalData() :
40 _satb_mark_queue(&G1BarrierSet::satb_mark_queue_set()),
41 _dirty_card_queue(&G1BarrierSet::dirty_card_queue_set()) {}
42
43 static G1ThreadLocalData* data(Thread* thread) {
44 assert(UseG1GC, "Sanity");
45 return thread->gc_data<G1ThreadLocalData>();
46 }
47
48 static ByteSize satb_mark_queue_offset() {
49 return Thread::gc_data_offset() + byte_offset_of(G1ThreadLocalData, _satb_mark_queue);
50 }
51
52 static ByteSize dirty_card_queue_offset() {
53 return Thread::gc_data_offset() + byte_offset_of(G1ThreadLocalData, _dirty_card_queue);
54 }
55
56public:
57 static void create(Thread* thread) {
58 new (data(thread)) G1ThreadLocalData();
59 }
60
61 static void destroy(Thread* thread) {
62 data(thread)->~G1ThreadLocalData();
63 }
64
65 static SATBMarkQueue& satb_mark_queue(Thread* thread) {
66 return data(thread)->_satb_mark_queue;
67 }
68
69 static G1DirtyCardQueue& dirty_card_queue(Thread* thread) {
70 return data(thread)->_dirty_card_queue;
71 }
72
73 static ByteSize satb_mark_queue_active_offset() {
74 return satb_mark_queue_offset() + SATBMarkQueue::byte_offset_of_active();
75 }
76
77 static ByteSize satb_mark_queue_index_offset() {
78 return satb_mark_queue_offset() + SATBMarkQueue::byte_offset_of_index();
79 }
80
81 static ByteSize satb_mark_queue_buffer_offset() {
82 return satb_mark_queue_offset() + SATBMarkQueue::byte_offset_of_buf();
83 }
84
85 static ByteSize dirty_card_queue_index_offset() {
86 return dirty_card_queue_offset() + G1DirtyCardQueue::byte_offset_of_index();
87 }
88
89 static ByteSize dirty_card_queue_buffer_offset() {
90 return dirty_card_queue_offset() + G1DirtyCardQueue::byte_offset_of_buf();
91 }
92};
93
94#endif // SHARE_GC_G1_G1THREADLOCALDATA_HPP
95