// Copyright (c) 2012 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/callback_internal.h" #include "base/logging.h" namespace base { namespace internal { void BindStateBase::AddRef() { AtomicRefCountInc(&ref_count_); } void BindStateBase::Release() { if (!AtomicRefCountDec(&ref_count_)) destructor_(this); } CallbackBase::CallbackBase(const CallbackBase& c) = default; CallbackBase& CallbackBase::operator=(const CallbackBase& c) = default; void CallbackBase::Reset() { polymorphic_invoke_ = NULL; // NULL the bind_state_ last, since it may be holding the last ref to whatever // object owns us, and we may be deleted after that. bind_state_ = NULL; } bool CallbackBase::Equals(const CallbackBase& other) const { return bind_state_.get() == other.bind_state_.get() && polymorphic_invoke_ == other.polymorphic_invoke_; } CallbackBase::CallbackBase(BindStateBase* bind_state) : bind_state_(bind_state), polymorphic_invoke_(NULL) { DCHECK(!bind_state_.get() || bind_state_->ref_count_ == 1); } CallbackBase::~CallbackBase() { } } // namespace internal } // namespace base