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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_ATOMIC_MACOS_H_ | 5 #ifndef VM_ATOMIC_MACOS_H_ |
6 #define VM_ATOMIC_MACOS_H_ | 6 #define VM_ATOMIC_MACOS_H_ |
7 | 7 |
8 #if !defined VM_ATOMIC_H_ | 8 #if !defined VM_ATOMIC_H_ |
9 #error Do not include atomic_macos.h directly. Use atomic.h instead. | 9 #error Do not include atomic_macos.h directly. Use atomic.h instead. |
10 #endif | 10 #endif |
11 | 11 |
12 #if !defined(TARGET_OS_MACOS) | 12 #if !defined(TARGET_OS_MACOS) |
13 #error This file should only be included on Mac OS X builds. | 13 #error This file should only be included on Mac OS X builds. |
14 #endif | 14 #endif |
15 | 15 |
16 namespace dart { | 16 namespace dart { |
17 | 17 |
18 | 18 |
19 inline uintptr_t AtomicOperations::FetchAndIncrement(uintptr_t* p) { | 19 inline uintptr_t AtomicOperations::FetchAndIncrement(uintptr_t* p) { |
20 return __sync_fetch_and_add(p, 1); | 20 return __sync_fetch_and_add(p, 1); |
21 } | 21 } |
22 | 22 |
23 | 23 |
24 inline intptr_t AtomicOperations::FetchAndAdd(intptr_t* p, intptr_t delta) { | 24 inline uintptr_t AtomicOperations::FetchAndDecrement(uintptr_t* p) { |
25 return __sync_fetch_and_add(p, delta); | 25 return __sync_fetch_and_sub(p, 1); |
26 } | 26 } |
27 | 27 |
28 | 28 |
29 #if !defined(USING_SIMULATOR) | 29 #if !defined(USING_SIMULATOR) |
30 inline uword AtomicOperations::CompareAndSwapWord(uword* ptr, | 30 inline uword AtomicOperations::CompareAndSwapWord(uword* ptr, |
31 uword old_value, | 31 uword old_value, |
32 uword new_value) { | 32 uword new_value) { |
33 return __sync_val_compare_and_swap(ptr, old_value, new_value); | 33 return __sync_val_compare_and_swap(ptr, old_value, new_value); |
34 } | 34 } |
35 #endif // !defined(USING_SIMULATOR) | 35 #endif // !defined(USING_SIMULATOR) |
36 | 36 |
37 } // namespace dart | 37 } // namespace dart |
38 | 38 |
39 #endif // VM_ATOMIC_MACOS_H_ | 39 #endif // VM_ATOMIC_MACOS_H_ |
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