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.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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23 */
24
25#ifndef SHARE_GC_SHARED_STRONGROOTSSCOPE_HPP
26#define SHARE_GC_SHARED_STRONGROOTSSCOPE_HPP
27
28#include "memory/allocation.hpp"
29
30class MarkScope : public StackObj {
31 protected:
32 MarkScope();
33 ~MarkScope();
34};
35
36// Sets up and tears down the required state for parallel root processing.
37
38class StrongRootsScope : public MarkScope {
39 // Number of threads participating in the roots processing.
40 const uint _n_threads;
41
42 public:
43 StrongRootsScope(uint n_threads);
44 ~StrongRootsScope();
45
46 uint n_threads() const { return _n_threads; }
47};
48
49#endif // SHARE_GC_SHARED_STRONGROOTSSCOPE_HPP
50