1/*
2 * Copyright (c) 2001, 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_SERIAL_GENMARKSWEEP_HPP
26#define SHARE_GC_SERIAL_GENMARKSWEEP_HPP
27
28#include "gc/serial/markSweep.hpp"
29
30class GenMarkSweep : public MarkSweep {
31 friend class VM_MarkSweep;
32 public:
33 static void invoke_at_safepoint(ReferenceProcessor* rp, bool clear_all_softrefs);
34
35 private:
36
37 // Mark live objects
38 static void mark_sweep_phase1(bool clear_all_softrefs);
39 // Calculate new addresses
40 static void mark_sweep_phase2();
41 // Update pointers
42 static void mark_sweep_phase3();
43 // Move objects to new positions
44 static void mark_sweep_phase4();
45
46 // Temporary data structures for traversal and storing/restoring marks
47 static void allocate_stacks();
48 static void deallocate_stacks();
49};
50
51#endif // SHARE_GC_SERIAL_GENMARKSWEEP_HPP
52