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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // 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 | 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 #include "base/callback_internal.h" | 5 #include "base/callback_internal.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 | 8 |
9 namespace base { | 9 namespace base { |
10 namespace internal { | 10 namespace internal { |
11 | 11 |
12 BindStateBase::BindStateBase(InvokeFuncStorage polymorphic_invoke, | 12 BindStateBase::BindStateBase(InvokeFuncStorage polymorphic_invoke, |
13 void (*destructor)(BindStateBase*)) | 13 void (*destructor)(BindStateBase*), |
| 14 bool (*is_cancelled)(const BindStateBase*)) |
14 : polymorphic_invoke_(polymorphic_invoke), | 15 : polymorphic_invoke_(polymorphic_invoke), |
15 ref_count_(0), destructor_(destructor) {} | 16 ref_count_(0), |
| 17 destructor_(destructor), |
| 18 is_cancelled_(is_cancelled) {} |
16 | 19 |
17 void BindStateBase::AddRef() { | 20 void BindStateBase::AddRef() { |
18 AtomicRefCountInc(&ref_count_); | 21 AtomicRefCountInc(&ref_count_); |
19 } | 22 } |
20 | 23 |
21 void BindStateBase::Release() { | 24 void BindStateBase::Release() { |
22 if (!AtomicRefCountDec(&ref_count_)) | 25 if (!AtomicRefCountDec(&ref_count_)) |
23 destructor_(this); | 26 destructor_(this); |
24 } | 27 } |
25 | 28 |
26 CallbackBase<CopyMode::MoveOnly>::CallbackBase(CallbackBase&& c) = default; | 29 CallbackBase<CopyMode::MoveOnly>::CallbackBase(CallbackBase&& c) = default; |
27 | 30 |
28 CallbackBase<CopyMode::MoveOnly>& | 31 CallbackBase<CopyMode::MoveOnly>& |
29 CallbackBase<CopyMode::MoveOnly>::operator=(CallbackBase&& c) = default; | 32 CallbackBase<CopyMode::MoveOnly>::operator=(CallbackBase&& c) = default; |
30 | 33 |
31 void CallbackBase<CopyMode::MoveOnly>::Reset() { | 34 void CallbackBase<CopyMode::MoveOnly>::Reset() { |
32 // NULL the bind_state_ last, since it may be holding the last ref to whatever | 35 // NULL the bind_state_ last, since it may be holding the last ref to whatever |
33 // object owns us, and we may be deleted after that. | 36 // object owns us, and we may be deleted after that. |
34 bind_state_ = nullptr; | 37 bind_state_ = nullptr; |
35 } | 38 } |
36 | 39 |
| 40 bool CallbackBase<CopyMode::MoveOnly>::IsCancelled() const { |
| 41 DCHECK(bind_state_); |
| 42 return bind_state_->IsCancelled(); |
| 43 } |
| 44 |
37 bool CallbackBase<CopyMode::MoveOnly>::EqualsInternal( | 45 bool CallbackBase<CopyMode::MoveOnly>::EqualsInternal( |
38 const CallbackBase& other) const { | 46 const CallbackBase& other) const { |
39 return bind_state_ == other.bind_state_; | 47 return bind_state_ == other.bind_state_; |
40 } | 48 } |
41 | 49 |
42 CallbackBase<CopyMode::MoveOnly>::CallbackBase( | 50 CallbackBase<CopyMode::MoveOnly>::CallbackBase( |
43 BindStateBase* bind_state) | 51 BindStateBase* bind_state) |
44 : bind_state_(bind_state) { | 52 : bind_state_(bind_state) { |
45 DCHECK(!bind_state_.get() || bind_state_->ref_count_ == 1); | 53 DCHECK(!bind_state_.get() || bind_state_->ref_count_ == 1); |
46 } | 54 } |
(...skipping 15 matching lines...) Expand all Loading... |
62 } | 70 } |
63 | 71 |
64 CallbackBase<CopyMode::Copyable>& | 72 CallbackBase<CopyMode::Copyable>& |
65 CallbackBase<CopyMode::Copyable>::operator=(CallbackBase&& c) = default; | 73 CallbackBase<CopyMode::Copyable>::operator=(CallbackBase&& c) = default; |
66 | 74 |
67 template class CallbackBase<CopyMode::MoveOnly>; | 75 template class CallbackBase<CopyMode::MoveOnly>; |
68 template class CallbackBase<CopyMode::Copyable>; | 76 template class CallbackBase<CopyMode::Copyable>; |
69 | 77 |
70 } // namespace internal | 78 } // namespace internal |
71 } // namespace base | 79 } // namespace base |
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