Files
sdk/runtime/vm/atomic_linux.h
T
iposva@google.com 50652300dc - Add AtomicOperations::CompareAndSwapWord
- Make AtomicOperations inlineable.
- Use atomic tag word updates from C++ where necessary.

Review URL: https://codereview.chromium.org//529823002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@39731 260f80e4-7a28-3924-810f-c04153c831b5
2014-09-01 18:18:44 +00:00

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918 B
C++

// 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.
#ifndef VM_ATOMIC_LINUX_H_
#define VM_ATOMIC_LINUX_H_
#if !defined VM_ATOMIC_H_
#error Do not include atomic_linux.h directly. Use atomic.h instead.
#endif
#if !defined(TARGET_OS_LINUX)
#error This file should only be included on Linux builds.
#endif
namespace dart {
inline uintptr_t AtomicOperations::FetchAndIncrement(uintptr_t* p) {
return __sync_fetch_and_add(p, 1);
}
inline uword AtomicOperations::CompareAndSwapWord(uword* ptr,
uword old_value,
uword new_value) {
return __sync_val_compare_and_swap(ptr, old_value, new_value);
}
} // namespace dart
#endif // VM_ATOMIC_LINUX_H_