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Side by Side Diff: runtime/vm/atomic_macos.h

Issue 2176803003: Add new atomic operations and use them in two places. (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: Created 4 years, 5 months ago
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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 template<typename T> T AtomicOperations::LoadAcquire(T* ptr) {
19 return __atomic_load_n(ptr, __ATOMIC_ACQUIRE);
20 }
21
22
23 template<typename T> void AtomicOperations::StoreRelease(T* ptr, T val) {
24 __atomic_store_n(ptr, val, __ATOMIC_RELEASE);
25 }
26
18 27
19 inline uintptr_t AtomicOperations::FetchAndIncrement(uintptr_t* p) { 28 inline uintptr_t AtomicOperations::FetchAndIncrement(uintptr_t* p) {
20 return __sync_fetch_and_add(p, 1); 29 return __sync_fetch_and_add(p, 1);
21 } 30 }
22 31
23 32
24 inline void AtomicOperations::IncrementBy(intptr_t* p, intptr_t value) { 33 inline void AtomicOperations::IncrementBy(intptr_t* p, intptr_t value) {
25 __sync_fetch_and_add(p, value); 34 __sync_fetch_and_add(p, value);
26 } 35 }
27 36
(...skipping 24 matching lines...) Expand all
52 inline uint32_t AtomicOperations::CompareAndSwapUint32(uint32_t* ptr, 61 inline uint32_t AtomicOperations::CompareAndSwapUint32(uint32_t* ptr,
53 uint32_t old_value, 62 uint32_t old_value,
54 uint32_t new_value) { 63 uint32_t new_value) {
55 return __sync_val_compare_and_swap(ptr, old_value, new_value); 64 return __sync_val_compare_and_swap(ptr, old_value, new_value);
56 } 65 }
57 #endif // !defined(USING_SIMULATOR_ATOMICS) 66 #endif // !defined(USING_SIMULATOR_ATOMICS)
58 67
59 } // namespace dart 68 } // namespace dart
60 69
61 #endif // VM_ATOMIC_MACOS_H_ 70 #endif // VM_ATOMIC_MACOS_H_
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