Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(67)

Side by Side Diff: src/atomicops_internals_x86_macosx.h

Issue 9227007: Version 3.8.6 (Closed) Base URL: http://v8.googlecode.com/svn/trunk/
Patch Set: Created 8 years, 11 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch | Annotate | Revision Log
« no previous file with comments | « src/assembler.h ('k') | src/bootstrapper.h » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
1 // Copyright 2010 the V8 project authors. All rights reserved. 1 // Copyright 2010 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
(...skipping 17 matching lines...) Expand all
28 // This file is an internal atomic implementation, use atomicops.h instead. 28 // This file is an internal atomic implementation, use atomicops.h instead.
29 29
30 #ifndef V8_ATOMICOPS_INTERNALS_X86_MACOSX_H_ 30 #ifndef V8_ATOMICOPS_INTERNALS_X86_MACOSX_H_
31 #define V8_ATOMICOPS_INTERNALS_X86_MACOSX_H_ 31 #define V8_ATOMICOPS_INTERNALS_X86_MACOSX_H_
32 32
33 #include <libkern/OSAtomic.h> 33 #include <libkern/OSAtomic.h>
34 34
35 namespace v8 { 35 namespace v8 {
36 namespace internal { 36 namespace internal {
37 37
38 inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32 *ptr, 38 inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr,
39 Atomic32 old_value, 39 Atomic32 old_value,
40 Atomic32 new_value) { 40 Atomic32 new_value) {
41 Atomic32 prev_value; 41 Atomic32 prev_value;
42 do { 42 do {
43 if (OSAtomicCompareAndSwap32(old_value, new_value, 43 if (OSAtomicCompareAndSwap32(old_value, new_value,
44 const_cast<Atomic32*>(ptr))) { 44 const_cast<Atomic32*>(ptr))) {
45 return old_value; 45 return old_value;
46 } 46 }
47 prev_value = *ptr; 47 prev_value = *ptr;
48 } while (prev_value == old_value); 48 } while (prev_value == old_value);
49 return prev_value; 49 return prev_value;
50 } 50 }
51 51
52 inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32 *ptr, 52 inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr,
53 Atomic32 new_value) { 53 Atomic32 new_value) {
54 Atomic32 old_value; 54 Atomic32 old_value;
55 do { 55 do {
56 old_value = *ptr; 56 old_value = *ptr;
57 } while (!OSAtomicCompareAndSwap32(old_value, new_value, 57 } while (!OSAtomicCompareAndSwap32(old_value, new_value,
58 const_cast<Atomic32*>(ptr))); 58 const_cast<Atomic32*>(ptr)));
59 return old_value; 59 return old_value;
60 } 60 }
61 61
62 inline Atomic32 NoBarrier_AtomicIncrement(volatile Atomic32 *ptr, 62 inline Atomic32 NoBarrier_AtomicIncrement(volatile Atomic32* ptr,
63 Atomic32 increment) { 63 Atomic32 increment) {
64 return OSAtomicAdd32(increment, const_cast<Atomic32*>(ptr)); 64 return OSAtomicAdd32(increment, const_cast<Atomic32*>(ptr));
65 } 65 }
66 66
67 inline Atomic32 Barrier_AtomicIncrement(volatile Atomic32 *ptr, 67 inline Atomic32 Barrier_AtomicIncrement(volatile Atomic32* ptr,
68 Atomic32 increment) { 68 Atomic32 increment) {
69 return OSAtomicAdd32Barrier(increment, const_cast<Atomic32*>(ptr)); 69 return OSAtomicAdd32Barrier(increment, const_cast<Atomic32*>(ptr));
70 } 70 }
71 71
72 inline void MemoryBarrier() { 72 inline void MemoryBarrier() {
73 OSMemoryBarrier(); 73 OSMemoryBarrier();
74 } 74 }
75 75
76 inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32 *ptr, 76 inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
77 Atomic32 old_value, 77 Atomic32 old_value,
78 Atomic32 new_value) { 78 Atomic32 new_value) {
79 Atomic32 prev_value; 79 Atomic32 prev_value;
80 do { 80 do {
81 if (OSAtomicCompareAndSwap32Barrier(old_value, new_value, 81 if (OSAtomicCompareAndSwap32Barrier(old_value, new_value,
82 const_cast<Atomic32*>(ptr))) { 82 const_cast<Atomic32*>(ptr))) {
83 return old_value; 83 return old_value;
84 } 84 }
85 prev_value = *ptr; 85 prev_value = *ptr;
86 } while (prev_value == old_value); 86 } while (prev_value == old_value);
87 return prev_value; 87 return prev_value;
88 } 88 }
89 89
90 inline Atomic32 Release_CompareAndSwap(volatile Atomic32 *ptr, 90 inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
91 Atomic32 old_value, 91 Atomic32 old_value,
92 Atomic32 new_value) { 92 Atomic32 new_value) {
93 return Acquire_CompareAndSwap(ptr, old_value, new_value); 93 return Acquire_CompareAndSwap(ptr, old_value, new_value);
94 } 94 }
95 95
96 inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) { 96 inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) {
97 *ptr = value; 97 *ptr = value;
98 } 98 }
99 99
100 inline void Acquire_Store(volatile Atomic32 *ptr, Atomic32 value) { 100 inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) {
101 *ptr = value; 101 *ptr = value;
102 MemoryBarrier(); 102 MemoryBarrier();
103 } 103 }
104 104
105 inline void Release_Store(volatile Atomic32 *ptr, Atomic32 value) { 105 inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) {
106 MemoryBarrier(); 106 MemoryBarrier();
107 *ptr = value; 107 *ptr = value;
108 } 108 }
109 109
110 inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) { 110 inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) {
111 return *ptr; 111 return *ptr;
112 } 112 }
113 113
114 inline Atomic32 Acquire_Load(volatile const Atomic32 *ptr) { 114 inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) {
115 Atomic32 value = *ptr; 115 Atomic32 value = *ptr;
116 MemoryBarrier(); 116 MemoryBarrier();
117 return value; 117 return value;
118 } 118 }
119 119
120 inline Atomic32 Release_Load(volatile const Atomic32 *ptr) { 120 inline Atomic32 Release_Load(volatile const Atomic32* ptr) {
121 MemoryBarrier(); 121 MemoryBarrier();
122 return *ptr; 122 return *ptr;
123 } 123 }
124 124
125 #ifdef __LP64__ 125 #ifdef __LP64__
126 126
127 // 64-bit implementation on 64-bit platform 127 // 64-bit implementation on 64-bit platform
128 128
129 inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64 *ptr, 129 inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
130 Atomic64 old_value, 130 Atomic64 old_value,
131 Atomic64 new_value) { 131 Atomic64 new_value) {
132 Atomic64 prev_value; 132 Atomic64 prev_value;
133 do { 133 do {
134 if (OSAtomicCompareAndSwap64(old_value, new_value, 134 if (OSAtomicCompareAndSwap64(old_value, new_value,
135 const_cast<Atomic64*>(ptr))) { 135 const_cast<Atomic64*>(ptr))) {
136 return old_value; 136 return old_value;
137 } 137 }
138 prev_value = *ptr; 138 prev_value = *ptr;
139 } while (prev_value == old_value); 139 } while (prev_value == old_value);
140 return prev_value; 140 return prev_value;
141 } 141 }
142 142
143 inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64 *ptr, 143 inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
144 Atomic64 new_value) { 144 Atomic64 new_value) {
145 Atomic64 old_value; 145 Atomic64 old_value;
146 do { 146 do {
147 old_value = *ptr; 147 old_value = *ptr;
148 } while (!OSAtomicCompareAndSwap64(old_value, new_value, 148 } while (!OSAtomicCompareAndSwap64(old_value, new_value,
149 const_cast<Atomic64*>(ptr))); 149 const_cast<Atomic64*>(ptr)));
150 return old_value; 150 return old_value;
151 } 151 }
152 152
153 inline Atomic64 NoBarrier_AtomicIncrement(volatile Atomic64 *ptr, 153 inline Atomic64 NoBarrier_AtomicIncrement(volatile Atomic64* ptr,
154 Atomic64 increment) { 154 Atomic64 increment) {
155 return OSAtomicAdd64(increment, const_cast<Atomic64*>(ptr)); 155 return OSAtomicAdd64(increment, const_cast<Atomic64*>(ptr));
156 } 156 }
157 157
158 inline Atomic64 Barrier_AtomicIncrement(volatile Atomic64 *ptr, 158 inline Atomic64 Barrier_AtomicIncrement(volatile Atomic64* ptr,
159 Atomic64 increment) { 159 Atomic64 increment) {
160 return OSAtomicAdd64Barrier(increment, const_cast<Atomic64*>(ptr)); 160 return OSAtomicAdd64Barrier(increment, const_cast<Atomic64*>(ptr));
161 } 161 }
162 162
163 inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64 *ptr, 163 inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr,
164 Atomic64 old_value, 164 Atomic64 old_value,
165 Atomic64 new_value) { 165 Atomic64 new_value) {
166 Atomic64 prev_value; 166 Atomic64 prev_value;
167 do { 167 do {
168 if (OSAtomicCompareAndSwap64Barrier(old_value, new_value, 168 if (OSAtomicCompareAndSwap64Barrier(old_value, new_value,
169 const_cast<Atomic64*>(ptr))) { 169 const_cast<Atomic64*>(ptr))) {
170 return old_value; 170 return old_value;
171 } 171 }
172 prev_value = *ptr; 172 prev_value = *ptr;
173 } while (prev_value == old_value); 173 } while (prev_value == old_value);
174 return prev_value; 174 return prev_value;
175 } 175 }
176 176
177 inline Atomic64 Release_CompareAndSwap(volatile Atomic64 *ptr, 177 inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr,
178 Atomic64 old_value, 178 Atomic64 old_value,
179 Atomic64 new_value) { 179 Atomic64 new_value) {
180 // The lib kern interface does not distinguish between 180 // The lib kern interface does not distinguish between
181 // Acquire and Release memory barriers; they are equivalent. 181 // Acquire and Release memory barriers; they are equivalent.
182 return Acquire_CompareAndSwap(ptr, old_value, new_value); 182 return Acquire_CompareAndSwap(ptr, old_value, new_value);
183 } 183 }
184 184
185 inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) { 185 inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
186 *ptr = value; 186 *ptr = value;
187 } 187 }
188 188
189 inline void Acquire_Store(volatile Atomic64 *ptr, Atomic64 value) { 189 inline void Acquire_Store(volatile Atomic64* ptr, Atomic64 value) {
190 *ptr = value; 190 *ptr = value;
191 MemoryBarrier(); 191 MemoryBarrier();
192 } 192 }
193 193
194 inline void Release_Store(volatile Atomic64 *ptr, Atomic64 value) { 194 inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) {
195 MemoryBarrier(); 195 MemoryBarrier();
196 *ptr = value; 196 *ptr = value;
197 } 197 }
198 198
199 inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) { 199 inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
200 return *ptr; 200 return *ptr;
201 } 201 }
202 202
203 inline Atomic64 Acquire_Load(volatile const Atomic64 *ptr) { 203 inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) {
204 Atomic64 value = *ptr; 204 Atomic64 value = *ptr;
205 MemoryBarrier(); 205 MemoryBarrier();
206 return value; 206 return value;
207 } 207 }
208 208
209 inline Atomic64 Release_Load(volatile const Atomic64 *ptr) { 209 inline Atomic64 Release_Load(volatile const Atomic64* ptr) {
210 MemoryBarrier(); 210 MemoryBarrier();
211 return *ptr; 211 return *ptr;
212 } 212 }
213 213
214 #endif // defined(__LP64__) 214 #endif // defined(__LP64__)
215 215
216 // MacOS uses long for intptr_t, AtomicWord and Atomic32 are always different 216 // MacOS uses long for intptr_t, AtomicWord and Atomic32 are always different
217 // on the Mac, even when they are the same size. We need to explicitly cast 217 // on the Mac, even when they are the same size. We need to explicitly cast
218 // from AtomicWord to Atomic32/64 to implement the AtomicWord interface. 218 // from AtomicWord to Atomic32/64 to implement the AtomicWord interface.
219 #ifdef __LP64__ 219 #ifdef __LP64__
(...skipping 37 matching lines...) Expand 10 before | Expand all | Expand 10 after
257 } 257 }
258 258
259 inline AtomicWord Release_CompareAndSwap(volatile AtomicWord* ptr, 259 inline AtomicWord Release_CompareAndSwap(volatile AtomicWord* ptr,
260 AtomicWord old_value, 260 AtomicWord old_value,
261 AtomicWord new_value) { 261 AtomicWord new_value) {
262 return v8::internal::Release_CompareAndSwap( 262 return v8::internal::Release_CompareAndSwap(
263 reinterpret_cast<volatile AtomicWordCastType*>(ptr), 263 reinterpret_cast<volatile AtomicWordCastType*>(ptr),
264 old_value, new_value); 264 old_value, new_value);
265 } 265 }
266 266
267 inline void NoBarrier_Store(volatile AtomicWord *ptr, AtomicWord value) { 267 inline void NoBarrier_Store(volatile AtomicWord* ptr, AtomicWord value) {
268 NoBarrier_Store( 268 NoBarrier_Store(
269 reinterpret_cast<volatile AtomicWordCastType*>(ptr), value); 269 reinterpret_cast<volatile AtomicWordCastType*>(ptr), value);
270 } 270 }
271 271
272 inline void Acquire_Store(volatile AtomicWord* ptr, AtomicWord value) { 272 inline void Acquire_Store(volatile AtomicWord* ptr, AtomicWord value) {
273 return v8::internal::Acquire_Store( 273 return v8::internal::Acquire_Store(
274 reinterpret_cast<volatile AtomicWordCastType*>(ptr), value); 274 reinterpret_cast<volatile AtomicWordCastType*>(ptr), value);
275 } 275 }
276 276
277 inline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) { 277 inline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) {
278 return v8::internal::Release_Store( 278 return v8::internal::Release_Store(
279 reinterpret_cast<volatile AtomicWordCastType*>(ptr), value); 279 reinterpret_cast<volatile AtomicWordCastType*>(ptr), value);
280 } 280 }
281 281
282 inline AtomicWord NoBarrier_Load(volatile const AtomicWord *ptr) { 282 inline AtomicWord NoBarrier_Load(volatile const AtomicWord* ptr) {
283 return NoBarrier_Load( 283 return NoBarrier_Load(
284 reinterpret_cast<volatile const AtomicWordCastType*>(ptr)); 284 reinterpret_cast<volatile const AtomicWordCastType*>(ptr));
285 } 285 }
286 286
287 inline AtomicWord Acquire_Load(volatile const AtomicWord* ptr) { 287 inline AtomicWord Acquire_Load(volatile const AtomicWord* ptr) {
288 return v8::internal::Acquire_Load( 288 return v8::internal::Acquire_Load(
289 reinterpret_cast<volatile const AtomicWordCastType*>(ptr)); 289 reinterpret_cast<volatile const AtomicWordCastType*>(ptr));
290 } 290 }
291 291
292 inline AtomicWord Release_Load(volatile const AtomicWord* ptr) { 292 inline AtomicWord Release_Load(volatile const AtomicWord* ptr) {
293 return v8::internal::Release_Load( 293 return v8::internal::Release_Load(
294 reinterpret_cast<volatile const AtomicWordCastType*>(ptr)); 294 reinterpret_cast<volatile const AtomicWordCastType*>(ptr));
295 } 295 }
296 296
297 #undef AtomicWordCastType 297 #undef AtomicWordCastType
298 298
299 } } // namespace v8::internal 299 } } // namespace v8::internal
300 300
301 #endif // V8_ATOMICOPS_INTERNALS_X86_MACOSX_H_ 301 #endif // V8_ATOMICOPS_INTERNALS_X86_MACOSX_H_
OLDNEW
« no previous file with comments | « src/assembler.h ('k') | src/bootstrapper.h » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698