Siva Annamalai
bf5d8f6efc
R=rmacnak@google.com Review URL: https://codereview.chromium.org/1658983004 .
57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef VM_ATOMIC_LINUX_H_
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#define VM_ATOMIC_LINUX_H_
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#if !defined VM_ATOMIC_H_
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#error Do not include atomic_linux.h directly. Use atomic.h instead.
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#endif
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#if !defined(TARGET_OS_LINUX)
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#error This file should only be included on Linux builds.
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#endif
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namespace dart {
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inline uintptr_t AtomicOperations::FetchAndIncrement(uintptr_t* p) {
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return __sync_fetch_and_add(p, 1);
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}
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inline void AtomicOperations::IncrementBy(intptr_t* p, intptr_t value) {
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__sync_fetch_and_add(p, value);
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}
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inline uintptr_t AtomicOperations::FetchAndDecrement(uintptr_t* p) {
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return __sync_fetch_and_sub(p, 1);
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}
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inline void AtomicOperations::DecrementBy(intptr_t* p, intptr_t value) {
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__sync_fetch_and_sub(p, value);
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}
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#if !defined(USING_SIMULATOR)
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inline uword AtomicOperations::CompareAndSwapWord(uword* ptr,
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uword old_value,
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uword new_value) {
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return __sync_val_compare_and_swap(ptr, old_value, new_value);
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}
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inline uint32_t AtomicOperations::CompareAndSwapUint32(uint32_t* ptr,
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uint32_t old_value,
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uint32_t new_value) {
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return __sync_val_compare_and_swap(ptr, old_value, new_value);
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}
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#endif // !defined(USING_SIMULATOR)
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} // namespace dart
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#endif // VM_ATOMIC_LINUX_H_
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