1 /*
2 * Copyright (c) 2025, 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_OOPS_REFARRAYKLASS_INLINE_HPP
26 #define SHARE_OOPS_REFARRAYKLASS_INLINE_HPP
27
28 #include "oops/refArrayKlass.hpp"
29
30 #include "memory/memRegion.hpp"
31 #include "oops/arrayKlass.hpp"
32 #include "oops/arrayOop.hpp"
33 #include "oops/klass.hpp"
34 #include "oops/oop.inline.hpp"
35 #include "oops/refArrayOop.inline.hpp"
36 #include "utilities/devirtualizer.inline.hpp"
37 #include "utilities/macros.hpp"
38
39 template <typename T, class OopClosureType>
40 void RefArrayKlass::oop_oop_iterate_elements(refArrayOop a,
41 OopClosureType *closure) {
42 oop_oop_iterate_elements_range<T>(a, closure, 0, a->length());
43 }
44
45 // Like oop_oop_iterate but only iterates over a specified range and only used
46 // for refArrayOops.
47 template <typename T, class OopClosureType>
48 void RefArrayKlass::oop_oop_iterate_elements_range(refArrayOop a, OopClosureType* closure, int start, int end) {
49 T* base = (T*)a->base();
50 T* p = base + start;
51 T* const end_p = base + end;
52
53 assert(a->klass()->is_refArray_klass(), "must be refArray");
54 for (;p < end_p; ++p) {
55 Devirtualizer::do_oop(closure, p);
56 }
57 }
58
59
60 template <typename T, class OopClosureType>
61 void RefArrayKlass::oop_oop_iterate_elements_bounded(refArrayOop a,
62 OopClosureType *closure,
63 void *low, void *high) {
64
65 T *const l = (T *)low;
66 T *const h = (T *)high;
67
68 T *p = (T *)a->base();
69 T *end = p + a->length();
70
71 if (p < l) {
72 p = l;
73 }
74 if (end > h) {
75 end = h;
76 }
77
78 for (; p < end; ++p) {
79 Devirtualizer::do_oop(closure, p);
80 }
81 }
82
83 template <typename T, typename OopClosureType>
84 void RefArrayKlass::oop_oop_iterate(oop obj, OopClosureType *closure) {
85 assert(obj->is_array(), "obj must be array");
86 refArrayOop a = refArrayOop(obj);
87
88 if (Devirtualizer::do_metadata(closure)) {
89 Devirtualizer::do_klass(closure, obj->klass());
90 }
91
92 oop_oop_iterate_elements<T>(a, closure);
93 }
94
95 template <typename T, typename OopClosureType>
96 void RefArrayKlass::oop_oop_iterate_reverse(oop obj, OopClosureType *closure) {
97 // No reverse implementation ATM.
98 oop_oop_iterate<T>(obj, closure);
99 }
100
101 template <typename T, typename OopClosureType>
102 void RefArrayKlass::oop_oop_iterate_bounded(oop obj, OopClosureType *closure,
103 MemRegion mr) {
104 assert(obj->is_array(), "obj must be array");
105 refArrayOop a = refArrayOop(obj);
106
107 if (Devirtualizer::do_metadata(closure)) {
108 Devirtualizer::do_klass(closure, a->klass());
109 }
110
111 oop_oop_iterate_elements_bounded<T>(a, closure, mr.start(), mr.end());
112 }
113
114 #endif // SHARE_OOPS_REFARRAYKLASS_INLINE_HPP