1 /*
2 * Copyright (c) 2020, 2022, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2020, 2022 SAP SE. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #ifndef SHARE_MEMORY_METASPACE_RUNNINGCOUNTERS_HPP
27 #define SHARE_MEMORY_METASPACE_RUNNINGCOUNTERS_HPP
28
29 #include "memory/allStatic.hpp"
30
31 namespace metaspace {
32
33 // This class is a convenience interface for accessing global metaspace counters.
34 struct RunningCounters : public AllStatic {
35
36 // ---- virtual memory -----
37
38 // Return reserved size, in words, for Metaspace
39 static size_t reserved_words();
40 static size_t reserved_words_class();
41 static size_t reserved_words_nonclass();
42
43 // Return total committed size, in words, for Metaspace
44 static size_t committed_words();
45 static size_t committed_words_class();
46 static size_t committed_words_nonclass();
47
48 // ---- used chunks -----
49
50 // Returns size, in words, used for metadata.
51 static size_t used_words();
52 static size_t used_words_class();
53 static size_t used_words_nonclass();
54
55 // ---- free chunks -----
56
57 // Returns size, in words, of all chunks in all freelists.
58 static size_t free_chunks_words();
59 static size_t free_chunks_words_class();
60 static size_t free_chunks_words_nonclass();
61
62 };
63
64 } // namespace metaspace
65
66 #endif // SHARE_MEMORY_METASPACE_RUNNINGCOUNTERS_HPP