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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // This file is an internal atomic implementation, use base/atomicops.h instead. | 5 // This file is an internal atomic implementation, use base/atomicops.h instead. |
6 | 6 |
7 #ifndef BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_ | 7 #ifndef BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_ |
8 #define BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_ | 8 #define BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_ |
9 | 9 |
10 #include <windows.h> | 10 #include <windows.h> |
11 | 11 |
12 #include <intrin.h> | 12 #include <intrin.h> |
13 | 13 |
14 #include "base/macros.h" | 14 #include "base/macros.h" |
| 15 #include "build/build_config.h" |
15 | 16 |
16 #if defined(ARCH_CPU_64_BITS) | 17 #if defined(ARCH_CPU_64_BITS) |
17 // windows.h #defines this (only on x64). This causes problems because the | 18 // windows.h #defines this (only on x64). This causes problems because the |
18 // public API also uses MemoryBarrier at the public name for this fence. So, on | 19 // public API also uses MemoryBarrier at the public name for this fence. So, on |
19 // X64, undef it, and call its documented | 20 // X64, undef it, and call its documented |
20 // (http://msdn.microsoft.com/en-us/library/windows/desktop/ms684208.aspx) | 21 // (http://msdn.microsoft.com/en-us/library/windows/desktop/ms684208.aspx) |
21 // implementation directly. | 22 // implementation directly. |
22 #undef MemoryBarrier | 23 #undef MemoryBarrier |
23 #endif | 24 #endif |
24 | 25 |
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186 return NoBarrier_CompareAndSwap(ptr, old_value, new_value); | 187 return NoBarrier_CompareAndSwap(ptr, old_value, new_value); |
187 } | 188 } |
188 | 189 |
189 | 190 |
190 #endif // defined(_WIN64) | 191 #endif // defined(_WIN64) |
191 | 192 |
192 } // namespace subtle | 193 } // namespace subtle |
193 } // namespace base | 194 } // namespace base |
194 | 195 |
195 #endif // BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_ | 196 #endif // BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_ |
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