1 /*
2 * Copyright (c) 1997, 2024, 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_RUNTIME_CONTINUATIONJAVACLASSES_INLINE_HPP
26 #define SHARE_RUNTIME_CONTINUATIONJAVACLASSES_INLINE_HPP
27
28 #include "runtime/continuationJavaClasses.hpp"
29
30 #include "logging/log.hpp"
31 #include "oops/access.inline.hpp"
32 #include "oops/oop.inline.hpp"
33 #include "oops/stackChunkOop.inline.hpp"
34 #include "runtime/atomic.hpp"
35
36 inline oop jdk_internal_vm_Continuation::scope(oop continuation) {
37 return continuation->obj_field(_scope_offset);
38 }
39
40 inline oop jdk_internal_vm_Continuation::parent(oop continuation) {
41 return continuation->obj_field(_parent_offset);
42 }
43
44 inline stackChunkOop jdk_internal_vm_Continuation::tail(oop continuation) {
45 return stackChunkOopDesc::cast(continuation->obj_field(_tail_offset));
46 }
47
48 inline void jdk_internal_vm_Continuation::set_tail(oop continuation, stackChunkOop value) {
49 continuation->obj_field_put(_tail_offset, value);
50 }
51
52 inline bool jdk_internal_vm_Continuation::done(oop continuation) {
53 return continuation->bool_field(_done_offset);
54 }
55
56 inline bool jdk_internal_vm_Continuation::is_preempted(oop continuation) {
57 return continuation->bool_field(_preempted_offset);
58 }
59
60 inline void jdk_internal_vm_Continuation::set_preempted(oop continuation, bool value) {
61 continuation->bool_field_put(_preempted_offset, (jboolean)value);
62 }
63
64 // ----------------------------------------------------------------------
65
66 inline oop jdk_internal_vm_StackChunk::parent(oop chunk) {
67 return chunk->obj_field(_parent_offset);
68 }
69
70 inline void jdk_internal_vm_StackChunk::set_parent(oop chunk, oop value) {
71 chunk->obj_field_put(_parent_offset, value);
72 }
73
74 template<typename P>
75 inline void jdk_internal_vm_StackChunk::set_parent_raw(oop chunk, oop value) {
76 RawAccess<>::oop_store(chunk->field_addr<P>(_parent_offset), value);
77 }
78
79 template<DecoratorSet decorators>
80 inline void jdk_internal_vm_StackChunk::set_parent_access(oop chunk, oop value) {
81 chunk->obj_field_put_access<decorators>(_parent_offset, value);
82 }
83
84 inline oop jdk_internal_vm_StackChunk::cont(oop chunk) {
85 return chunk->obj_field(_cont_offset);
86 }
87
88 template<typename P>
89 inline oop jdk_internal_vm_StackChunk::cont_raw(oop chunk) {
90 return (oop)RawAccess<>::oop_load(chunk->field_addr<P>(_cont_offset));
91 }
92
93 inline void jdk_internal_vm_StackChunk::set_cont(oop chunk, oop value) {
94 chunk->obj_field_put(_cont_offset, value);
95 }
96
97 template<typename P>
98 inline void jdk_internal_vm_StackChunk::set_cont_raw(oop chunk, oop value) {
99 RawAccess<>::oop_store(chunk->field_addr<P>(_cont_offset), value);
100 }
101
102 template<DecoratorSet decorators>
103 inline void jdk_internal_vm_StackChunk::set_cont_access(oop chunk, oop value) {
104 chunk->obj_field_put_access<decorators>(_cont_offset, value);
105 }
106
107 inline int jdk_internal_vm_StackChunk::size(oop chunk) {
108 return chunk->int_field(_size_offset);
109 }
110
111 inline void jdk_internal_vm_StackChunk::set_size(HeapWord* chunk, int value) {
112 // Used by StackChunkAllocator before the Object has been finished,
113 // so don't cast too oop and use int_field_put in this function.
114 assert(_size_offset != 0, "must be set");
115 *(int*)(((char*)chunk) + _size_offset) = (int)value;
116 }
117
118 inline void jdk_internal_vm_StackChunk::set_bottom(HeapWord* chunk, int value) {
119 // Used by StackChunkAllocator before the Object has been finished,
120 // so don't cast too oop and use int_field_put in this function.
121 assert(_bottom_offset != 0, "must be set");
122 *(int*)(((char*)chunk) + _bottom_offset) = (int)value;
123 }
124
125 inline int jdk_internal_vm_StackChunk::sp(oop chunk) {
126 return chunk->int_field_relaxed(_sp_offset);
127 }
128
129 inline void jdk_internal_vm_StackChunk::set_sp(oop chunk, int value) {
130 chunk->int_field_put_relaxed(_sp_offset, value);
131 }
132
133 inline void jdk_internal_vm_StackChunk::set_sp(HeapWord* chunk, int value) {
134 // Used by StackChunkAllocator before the Object has been finished,
135 // so don't cast too oop and use int_field_put in this function.
136 assert(_sp_offset != 0, "must be set");
137 *(int*)(((char*)chunk) + _sp_offset) = (int)value;
138 }
139
140 inline address jdk_internal_vm_StackChunk::pc(oop chunk) {
141 return chunk->address_field(_pc_offset);
142 }
143
144 inline void jdk_internal_vm_StackChunk::set_pc(oop chunk, address value) {
145 chunk->address_field_put(_pc_offset, value);
146 }
147
148 inline int jdk_internal_vm_StackChunk::bottom(oop chunk) {
149 return chunk->int_field(_bottom_offset);
150 }
151
152 inline void jdk_internal_vm_StackChunk::set_bottom(oop chunk, int value) {
153 chunk->int_field_put(_bottom_offset, value);
154 }
155
156 inline uint8_t jdk_internal_vm_StackChunk::flags(oop chunk) {
157 return Atomic::load(chunk->field_addr<uint8_t>(_flags_offset));
158 }
159
160 inline void jdk_internal_vm_StackChunk::set_flags(oop chunk, uint8_t value) {
161 Atomic::store(chunk->field_addr<uint8_t>(_flags_offset), value);
162 }
163
164 inline uint8_t jdk_internal_vm_StackChunk::flags_acquire(oop chunk) {
165 return Atomic::load_acquire(chunk->field_addr<uint8_t>(_flags_offset));
166 }
167
168 inline void jdk_internal_vm_StackChunk::release_set_flags(oop chunk, uint8_t value) {
169 Atomic::release_store(chunk->field_addr<uint8_t>(_flags_offset), value);
170 }
171
172 inline bool jdk_internal_vm_StackChunk::try_set_flags(oop chunk, uint8_t expected_value, uint8_t new_value) {
173 return Atomic::cmpxchg(chunk->field_addr<uint8_t>(_flags_offset), expected_value, new_value) == expected_value;
174 }
175
176 inline int jdk_internal_vm_StackChunk::maxThawingSize(oop chunk) {
177 return chunk->int_field(_maxThawingSize_offset);
178 }
179
180 inline void jdk_internal_vm_StackChunk::set_maxThawingSize(oop chunk, int value) {
181 #ifdef ASSERT
182 jint old = maxThawingSize(chunk);
183 log_develop_trace(continuations)("%s max_size: %d -> %d", value >= old ? "add" : "sub", old, value);
184 #endif
185 chunk->int_field_put(_maxThawingSize_offset, value);
186 }
187
188 // lockStackSize is read concurrently by GC threads so we use Atomic.
189 inline uint8_t jdk_internal_vm_StackChunk::lockStackSize(oop chunk) {
190 return Atomic::load(chunk->field_addr<uint8_t>(_lockStackSize_offset));
191 }
192
193 inline void jdk_internal_vm_StackChunk::set_lockStackSize(oop chunk, uint8_t value) {
194 Atomic::store(chunk->field_addr<uint8_t>(_lockStackSize_offset), value);
195 }
196
197 inline bool jdk_internal_vm_StackChunk::atKlassInit(oop chunk) {
198 return chunk->bool_field(_atKlassInit_offset);
199 }
200
201 inline void jdk_internal_vm_StackChunk::set_atKlassInit(oop chunk, bool value) {
202 chunk->bool_field_put(_atKlassInit_offset, (jboolean)value);
203 }
204
205 inline bool jdk_internal_vm_StackChunk::hasArgsAtTop(oop chunk) {
206 return chunk->bool_field(_hasArgsAtTop_offset);
207 }
208
209 inline void jdk_internal_vm_StackChunk::set_hasArgsAtTop(oop chunk, bool value) {
210 chunk->bool_field_put(_hasArgsAtTop_offset, (jboolean)value);
211 }
212
213 #endif // SHARE_RUNTIME_CONTINUATIONJAVACLASSES_INLINE_HPP