1/*
2 * Copyright (c) 2018, 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.
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23 */
24
25#ifndef SHARE_GC_SHARED_GENARGUMENTS_HPP
26#define SHARE_GC_SHARED_GENARGUMENTS_HPP
27
28#include "gc/shared/gcArguments.hpp"
29#include "utilities/debug.hpp"
30
31extern size_t MinNewSize;
32
33extern size_t MinOldSize;
34extern size_t MaxOldSize;
35
36extern size_t GenAlignment;
37
38class GenArguments : public GCArguments {
39 friend class TestGenCollectorPolicy; // Testing
40private:
41 virtual void initialize_alignments();
42 virtual void initialize_size_info();
43
44 // Return the (conservative) maximum heap alignment
45 virtual size_t conservative_max_heap_alignment();
46
47 DEBUG_ONLY(void assert_flags();)
48 DEBUG_ONLY(void assert_size_info();)
49
50 static size_t scale_by_NewRatio_aligned(size_t base_size, size_t alignment);
51
52protected:
53 virtual void initialize_heap_flags_and_sizes();
54};
55
56#endif // SHARE_GC_SHARED_GENARGUMENTS_HPP
57