blob: 2553fe7e1b64bf20c67dde90800377dc44b58fc2 [file] [log] [blame]
James Robinson646469d2014-10-03 15:33:28 -07001// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "base/callback_internal.h"
6
7#include "base/logging.h"
8
9namespace base {
10namespace internal {
11
James Robinsonc8f302a2015-05-14 16:38:33 -070012void BindStateBase::AddRef() {
13 AtomicRefCountInc(&ref_count_);
14}
15
16void BindStateBase::Release() {
17 if (!AtomicRefCountDec(&ref_count_))
18 destructor_(this);
19}
20
James Robinson6a64b812014-12-03 13:38:42 -080021CallbackBase::CallbackBase(const CallbackBase& c) = default;
22CallbackBase& CallbackBase::operator=(const CallbackBase& c) = default;
23
James Robinson646469d2014-10-03 15:33:28 -070024void CallbackBase::Reset() {
25 polymorphic_invoke_ = NULL;
26 // NULL the bind_state_ last, since it may be holding the last ref to whatever
27 // object owns us, and we may be deleted after that.
28 bind_state_ = NULL;
29}
30
31bool CallbackBase::Equals(const CallbackBase& other) const {
32 return bind_state_.get() == other.bind_state_.get() &&
33 polymorphic_invoke_ == other.polymorphic_invoke_;
34}
35
36CallbackBase::CallbackBase(BindStateBase* bind_state)
37 : bind_state_(bind_state),
38 polymorphic_invoke_(NULL) {
James Robinsonc8f302a2015-05-14 16:38:33 -070039 DCHECK(!bind_state_.get() || bind_state_->ref_count_ == 1);
James Robinson646469d2014-10-03 15:33:28 -070040}
41
42CallbackBase::~CallbackBase() {
43}
44
45} // namespace internal
46} // namespace base