| // Copyright (c) 2006-2008 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. |
| |
| #include "base/ref_counted.h" |
| |
| #include "base/logging.h" |
| |
| namespace base { |
| |
| namespace subtle { |
| |
| RefCountedBase::RefCountedBase() : ref_count_(0) { |
| #ifndef NDEBUG |
| in_dtor_ = false; |
| #endif |
| } |
| |
| RefCountedBase::~RefCountedBase() { |
| #ifndef NDEBUG |
| DCHECK(in_dtor_) << "RefCounted object deleted without calling Release()"; |
| #endif |
| } |
| |
| void RefCountedBase::AddRef() { |
| #ifndef NDEBUG |
| DCHECK(!in_dtor_); |
| #endif |
| ++ref_count_; |
| } |
| |
| bool RefCountedBase::Release() { |
| #ifndef NDEBUG |
| DCHECK(!in_dtor_); |
| #endif |
| if (--ref_count_ == 0) { |
| #ifndef NDEBUG |
| in_dtor_ = true; |
| #endif |
| return true; |
| } |
| return false; |
| } |
| |
| RefCountedThreadSafeBase::RefCountedThreadSafeBase() : ref_count_(0) { |
| #ifndef NDEBUG |
| in_dtor_ = false; |
| #endif |
| } |
| |
| RefCountedThreadSafeBase::~RefCountedThreadSafeBase() { |
| #ifndef NDEBUG |
| DCHECK(in_dtor_) << "RefCountedThreadSafe object deleted without " |
| "calling Release()"; |
| #endif |
| } |
| |
| void RefCountedThreadSafeBase::AddRef() { |
| #ifndef NDEBUG |
| DCHECK(!in_dtor_); |
| #endif |
| AtomicRefCountInc(&ref_count_); |
| } |
| |
| bool RefCountedThreadSafeBase::Release() { |
| #ifndef NDEBUG |
| DCHECK(!in_dtor_); |
| DCHECK(!AtomicRefCountIsZero(&ref_count_)); |
| #endif |
| if (!AtomicRefCountDec(&ref_count_)) { |
| #ifndef NDEBUG |
| in_dtor_ = true; |
| #endif |
| return true; |
| } |
| return false; |
| } |
| |
| } // namespace subtle |
| |
| } // namespace base |
| |