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| 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // This is a low level implementation of atomic semantics for reference | 5 // This is a low level implementation of atomic semantics for reference |
| 6 // counting. Please use base/ref_counted.h directly instead. | 6 // counting. Please use base/ref_counted.h directly instead. |
| 7 | 7 |
| 8 #ifndef BASE_ATOMIC_REF_COUNT_H_ | 8 #ifndef BASE_ATOMIC_REF_COUNT_H_ |
| 9 #define BASE_ATOMIC_REF_COUNT_H_ | 9 #define BASE_ATOMIC_REF_COUNT_H_ |
| 10 | 10 |
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| 54 // Return whether the reference count is zero. With conventional object | 54 // Return whether the reference count is zero. With conventional object |
| 55 // referencing counting, the object will be destroyed, so the reference count | 55 // referencing counting, the object will be destroyed, so the reference count |
| 56 // should never be zero. Hence this is generally used for a debug check. | 56 // should never be zero. Hence this is generally used for a debug check. |
| 57 inline bool AtomicRefCountIsZero(volatile AtomicRefCount *ptr) { | 57 inline bool AtomicRefCountIsZero(volatile AtomicRefCount *ptr) { |
| 58 return subtle::Acquire_Load(ptr) == 0; | 58 return subtle::Acquire_Load(ptr) == 0; |
| 59 } | 59 } |
| 60 | 60 |
| 61 } // namespace base | 61 } // namespace base |
| 62 | 62 |
| 63 #endif // BASE_ATOMIC_REF_COUNT_H_ | 63 #endif // BASE_ATOMIC_REF_COUNT_H_ |
| 64 | |
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Chromium Code Reviews
Issue 42011:
Normalize end of file newlines in base/. All files end in a single newline. (Closed)
