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
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23 */
24
25#ifndef SHARE_CLASSFILE_CLASSLOADERDATAGRAPH_INLINE_HPP
26#define SHARE_CLASSFILE_CLASSLOADERDATAGRAPH_INLINE_HPP
27
28#include "classfile/classLoaderDataGraph.hpp"
29#include "classfile/javaClasses.hpp"
30#include "oops/oop.inline.hpp"
31#include "runtime/atomic.hpp"
32
33inline ClassLoaderData *ClassLoaderDataGraph::find_or_create(Handle loader) {
34 guarantee(loader() != NULL && oopDesc::is_oop(loader()), "Loader must be oop");
35 // Gets the class loader data out of the java/lang/ClassLoader object, if non-null
36 // it's already in the loader_data, so no need to add
37 ClassLoaderData* loader_data = java_lang_ClassLoader::loader_data_acquire(loader());
38 if (loader_data) {
39 return loader_data;
40 }
41 return ClassLoaderDataGraph::add(loader, false);
42}
43
44size_t ClassLoaderDataGraph::num_instance_classes() {
45 return _num_instance_classes;
46}
47
48size_t ClassLoaderDataGraph::num_array_classes() {
49 return _num_array_classes;
50}
51
52void ClassLoaderDataGraph::inc_instance_classes(size_t count) {
53 Atomic::add(count, &_num_instance_classes);
54}
55
56void ClassLoaderDataGraph::dec_instance_classes(size_t count) {
57 assert(count <= _num_instance_classes, "Sanity");
58 Atomic::sub(count, &_num_instance_classes);
59}
60
61void ClassLoaderDataGraph::inc_array_classes(size_t count) {
62 Atomic::add(count, &_num_array_classes);
63}
64
65void ClassLoaderDataGraph::dec_array_classes(size_t count) {
66 assert(count <= _num_array_classes, "Sanity");
67 Atomic::sub(count, &_num_array_classes);
68}
69
70bool ClassLoaderDataGraph::should_clean_metaspaces_and_reset() {
71 // Only clean metaspaces after full GC.
72 bool do_cleaning = _safepoint_cleanup_needed;
73#if INCLUDE_JVMTI
74 do_cleaning = do_cleaning && (_should_clean_deallocate_lists || InstanceKlass::has_previous_versions());
75#else
76 do_cleaning = do_cleaning && _should_clean_deallocate_lists;
77#endif
78 _safepoint_cleanup_needed = false; // reset
79 return do_cleaning;
80}
81
82#endif // SHARE_CLASSFILE_CLASSLOADERDATAGRAPH_INLINE_HPP
83