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// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#if !defined VM_ATOMIC_H_
#error Do not include atomic_macos.h directly. Use atomic.h instead.
#if !defined(TARGET_OS_MACOS)
#error This file should only be included on Mac OS X builds.
namespace dart {
inline uintptr_t AtomicOperations::FetchAndIncrement(uintptr_t* p) {
return __sync_fetch_and_add(p, 1);
inline uintptr_t AtomicOperations::FetchAndDecrement(uintptr_t* p) {
return __sync_fetch_and_sub(p, 1);
#if !defined(USING_SIMULATOR)
inline uword AtomicOperations::CompareAndSwapWord(uword* ptr,
uword old_value,
uword new_value) {
return __sync_val_compare_and_swap(ptr, old_value, new_value);
#endif // !defined(USING_SIMULATOR)
} // namespace dart
#endif // VM_ATOMIC_MACOS_H_