| Index: base/atomic_ref_count.h
|
| diff --git a/base/atomic_ref_count.h b/base/atomic_ref_count.h
|
| deleted file mode 100644
|
| index 2ab724200203f23c3098190b3747ef9894baaaa1..0000000000000000000000000000000000000000
|
| --- a/base/atomic_ref_count.h
|
| +++ /dev/null
|
| @@ -1,66 +0,0 @@
|
| -// Copyright (c) 2011 The Chromium Authors. All rights reserved.
|
| -// Use of this source code is governed by a BSD-style license that can be
|
| -// found in the LICENSE file.
|
| -
|
| -// This is a low level implementation of atomic semantics for reference
|
| -// counting. Please use base/memory/ref_counted.h directly instead.
|
| -
|
| -#ifndef BASE_ATOMIC_REF_COUNT_H_
|
| -#define BASE_ATOMIC_REF_COUNT_H_
|
| -
|
| -#include "base/atomicops.h"
|
| -
|
| -namespace base {
|
| -
|
| -typedef subtle::Atomic32 AtomicRefCount;
|
| -
|
| -// Increment a reference count by "increment", which must exceed 0.
|
| -inline void AtomicRefCountIncN(volatile AtomicRefCount *ptr,
|
| - AtomicRefCount increment) {
|
| - subtle::NoBarrier_AtomicIncrement(ptr, increment);
|
| -}
|
| -
|
| -// Decrement a reference count by "decrement", which must exceed 0,
|
| -// and return whether the result is non-zero.
|
| -// Insert barriers to ensure that state written before the reference count
|
| -// became zero will be visible to a thread that has just made the count zero.
|
| -inline bool AtomicRefCountDecN(volatile AtomicRefCount *ptr,
|
| - AtomicRefCount decrement) {
|
| - bool res = (subtle::Barrier_AtomicIncrement(ptr, -decrement) != 0);
|
| - return res;
|
| -}
|
| -
|
| -// Increment a reference count by 1.
|
| -inline void AtomicRefCountInc(volatile AtomicRefCount *ptr) {
|
| - base::AtomicRefCountIncN(ptr, 1);
|
| -}
|
| -
|
| -// Decrement a reference count by 1 and return whether the result is non-zero.
|
| -// Insert barriers to ensure that state written before the reference count
|
| -// became zero will be visible to a thread that has just made the count zero.
|
| -inline bool AtomicRefCountDec(volatile AtomicRefCount *ptr) {
|
| - return base::AtomicRefCountDecN(ptr, 1);
|
| -}
|
| -
|
| -// Return whether the reference count is one. If the reference count is used
|
| -// in the conventional way, a refrerence count of 1 implies that the current
|
| -// thread owns the reference and no other thread shares it. This call performs
|
| -// the test for a reference count of one, and performs the memory barrier
|
| -// needed for the owning thread to act on the object, knowing that it has
|
| -// exclusive access to the object.
|
| -inline bool AtomicRefCountIsOne(volatile AtomicRefCount *ptr) {
|
| - bool res = (subtle::Acquire_Load(ptr) == 1);
|
| - return res;
|
| -}
|
| -
|
| -// Return whether the reference count is zero. With conventional object
|
| -// referencing counting, the object will be destroyed, so the reference count
|
| -// should never be zero. Hence this is generally used for a debug check.
|
| -inline bool AtomicRefCountIsZero(volatile AtomicRefCount *ptr) {
|
| - bool res = (subtle::Acquire_Load(ptr) == 0);
|
| - return res;
|
| -}
|
| -
|
| -} // namespace base
|
| -
|
| -#endif // BASE_ATOMIC_REF_COUNT_H_
|
|
|