1 /*
2 * Copyright (c) 2010, 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
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_OOPS_OBJARRAYKLASS_INLINE_HPP
26 #define SHARE_OOPS_OBJARRAYKLASS_INLINE_HPP
27
28 #include "memory/memRegion.hpp"
29 #include "memory/iterator.hpp"
30 #include "oops/arrayOop.inline.hpp"
31 #include "oops/arrayKlass.hpp"
32 #include "oops/klass.hpp"
33 #include "oops/objArrayKlass.hpp"
34 #include "oops/objArrayOop.inline.hpp"
35 #include "oops/oop.inline.hpp"
36 #include "utilities/macros.hpp"
37
38 template <typename T, class OopClosureType>
oop_oop_iterate_elements(objArrayOop a,OopClosureType * closure)39 void ObjArrayKlass::oop_oop_iterate_elements(objArrayOop a, OopClosureType* closure) {
40 T* p = (T*)a->base_raw();
41 T* const end = p + a->length();
42
43 for (;p < end; p++) {
44 Devirtualizer::do_oop(closure, p);
45 }
46 }
47
48 template <typename T, class OopClosureType>
oop_oop_iterate_elements_bounded(objArrayOop a,OopClosureType * closure,void * low,void * high)49 void ObjArrayKlass::oop_oop_iterate_elements_bounded(
50 objArrayOop a, OopClosureType* closure, void* low, void* high) {
51
52 T* const l = (T*)low;
53 T* const h = (T*)high;
54
55 T* p = (T*)a->base_raw();
56 T* end = p + a->length();
57
58 if (p < l) {
59 p = l;
60 }
61 if (end > h) {
62 end = h;
63 }
64
65 for (;p < end; ++p) {
66 Devirtualizer::do_oop(closure, p);
67 }
68 }
69
70 template <typename T, typename OopClosureType>
oop_oop_iterate(oop obj,OopClosureType * closure)71 void ObjArrayKlass::oop_oop_iterate(oop obj, OopClosureType* closure) {
72 assert (obj->is_array(), "obj must be array");
73 objArrayOop a = objArrayOop(obj);
74
75 if (Devirtualizer::do_metadata(closure)) {
76 Devirtualizer::do_klass(closure, obj->klass());
77 }
78
79 oop_oop_iterate_elements<T>(a, closure);
80 }
81
82 template <typename T, typename OopClosureType>
oop_oop_iterate_reverse(oop obj,OopClosureType * closure)83 void ObjArrayKlass::oop_oop_iterate_reverse(oop obj, OopClosureType* closure) {
84 // No reverse implementation ATM.
85 oop_oop_iterate<T>(obj, closure);
86 }
87
88 template <typename T, typename OopClosureType>
oop_oop_iterate_bounded(oop obj,OopClosureType * closure,MemRegion mr)89 void ObjArrayKlass::oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr) {
90 assert(obj->is_array(), "obj must be array");
91 objArrayOop a = objArrayOop(obj);
92
93 if (Devirtualizer::do_metadata(closure)) {
94 Devirtualizer::do_klass(closure, a->klass());
95 }
96
97 oop_oop_iterate_elements_bounded<T>(a, closure, mr.start(), mr.end());
98 }
99
100 // Like oop_oop_iterate but only iterates over a specified range and only used
101 // for objArrayOops.
102 template <typename T, class OopClosureType>
oop_oop_iterate_range(objArrayOop a,OopClosureType * closure,int start,int end)103 void ObjArrayKlass::oop_oop_iterate_range(objArrayOop a, OopClosureType* closure, int start, int end) {
104 T* low = start == 0 ? cast_from_oop<T*>(a) : a->obj_at_addr_raw<T>(start);
105 T* high = (T*)a->base_raw() + end;
106
107 oop_oop_iterate_elements_bounded<T>(a, closure, low, high);
108 }
109
110 // Placed here to resolve include cycle between objArrayKlass.inline.hpp and objArrayOop.inline.hpp
111 template <typename OopClosureType>
oop_iterate_range(OopClosureType * blk,int start,int end)112 void objArrayOopDesc::oop_iterate_range(OopClosureType* blk, int start, int end) {
113 if (UseCompressedOops) {
114 ((ObjArrayKlass*)klass())->oop_oop_iterate_range<narrowOop>(this, blk, start, end);
115 } else {
116 ((ObjArrayKlass*)klass())->oop_oop_iterate_range<oop>(this, blk, start, end);
117 }
118 }
119
120 #endif // SHARE_OOPS_OBJARRAYKLASS_INLINE_HPP
121