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1 // This file was GENERATED by command: | 1 // This file was GENERATED by command: |
2 // pump.py bind_to_loop.h.pump | 2 // pump.py bind_to_loop.h.pump |
3 // DO NOT EDIT BY HAND!!! | 3 // DO NOT EDIT BY HAND!!! |
4 | 4 |
5 | 5 |
6 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 6 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
7 // Use of this source code is governed by a BSD-style license that can be | 7 // Use of this source code is governed by a BSD-style license that can be |
8 // found in the LICENSE file. | 8 // found in the LICENSE file. |
9 | 9 |
10 #ifndef MEDIA_BASE_BIND_TO_LOOP_H_ | 10 #ifndef MEDIA_BASE_BIND_TO_LOOP_H_ |
11 #define MEDIA_BASE_BIND_TO_LOOP_H_ | 11 #define MEDIA_BASE_BIND_TO_LOOP_H_ |
12 | 12 |
13 #include "base/bind.h" | 13 #include "base/bind.h" |
14 #include "base/location.h" | 14 #include "base/location.h" |
15 #include "base/message_loop/message_loop_proxy.h" | 15 #include "base/message_loop/message_loop_proxy.h" |
16 #include "base/single_thread_task_runner.h" | 16 #include "base/single_thread_task_runner.h" |
17 | 17 |
18 // This is a helper utility for base::Bind()ing callbacks on to particular | 18 // This is a helper utility for base::Bind()ing callbacks to the current |
19 // MessageLoops. A typical use is when |a| (of class |A|) wants to hand a | 19 // MessageLoop. The typical use is when |a| (of class |A|) wants to hand a |
20 // callback such as base::Bind(&A::AMethod, a) to |b|, but needs to ensure that | 20 // callback such as base::Bind(&A::AMethod, a) to |b|, but needs to ensure that |
21 // when |b| executes the callback, it does so on a particular MessageLoop. | 21 // when |b| executes the callback, it does so on |a|'s current MessageLoop. |
22 // | 22 // |
23 // Typical usage: request to be called back on the current thread: | 23 // Typical usage: request to be called back on the current thread: |
24 // other->StartAsyncProcessAndCallMeBack( | 24 // other->StartAsyncProcessAndCallMeBack( |
25 // media::BindToLoop(MessageLoopProxy::current(), | 25 // media::BindToCurrentLoop(base::Bind(&MyClass::MyMethod, this))); |
26 // base::Bind(&MyClass::MyMethod, this))); | |
27 // | 26 // |
28 // Note that like base::Bind(), BindToLoop() can't bind non-constant references, | 27 // Note that like base::Bind(), BindToCurrentLoop() can't bind non-constant |
29 // and that *unlike* base::Bind(), BindToLoop() makes copies of its arguments, | 28 // references, and that *unlike* base::Bind(), BindToCurrentLoop() makes copies |
30 // and thus can't be used with arrays. | 29 // of its arguments, and thus can't be used with arrays. |
31 | 30 |
32 namespace media { | 31 namespace media { |
33 | 32 |
34 // Mimic base::internal::CallbackForward, replacing p.Pass() with | 33 // Mimic base::internal::CallbackForward, replacing p.Pass() with |
35 // base::Passed(&p) to account for the extra layer of indirection. | 34 // base::Passed(&p) to account for the extra layer of indirection. |
36 namespace internal { | 35 namespace internal { |
37 template <typename T> | 36 template <typename T> |
38 T& TrampolineForward(T& t) { return t; } | 37 T& TrampolineForward(T& t) { return t; } |
39 | 38 |
40 template <typename T> | 39 template <typename T> |
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148 internal::TrampolineForward(a1), internal::TrampolineForward(a2), | 147 internal::TrampolineForward(a1), internal::TrampolineForward(a2), |
149 internal::TrampolineForward(a3), internal::TrampolineForward(a4), | 148 internal::TrampolineForward(a3), internal::TrampolineForward(a4), |
150 internal::TrampolineForward(a5), internal::TrampolineForward(a6), | 149 internal::TrampolineForward(a5), internal::TrampolineForward(a6), |
151 internal::TrampolineForward(a7))); | 150 internal::TrampolineForward(a7))); |
152 } | 151 } |
153 }; | 152 }; |
154 | 153 |
155 | 154 |
156 } // namespace internal | 155 } // namespace internal |
157 | 156 |
158 template<typename T> | 157 // TODO(scherkus): Rename me to something that emphasizes the asynchrony |
159 static base::Callback<T> BindToLoop( | 158 // http://crbug.com/167240 |
160 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner, | |
161 const base::Callback<T>& cb) { | |
162 return base::Bind(&internal::TrampolineHelper<T>::Run, task_runner, cb); | |
163 } | |
164 | |
165 template<typename T> | 159 template<typename T> |
166 static base::Callback<T> BindToCurrentLoop( | 160 static base::Callback<T> BindToCurrentLoop( |
167 const base::Callback<T>& cb) { | 161 const base::Callback<T>& cb) { |
168 return BindToLoop(base::MessageLoopProxy::current(), cb); | 162 return base::Bind(&internal::TrampolineHelper<T>::Run, |
| 163 base::MessageLoopProxy::current(), cb); |
169 } | 164 } |
170 | 165 |
171 } // namespace media | 166 } // namespace media |
172 | 167 |
173 #endif // MEDIA_BASE_BIND_TO_LOOP_H_ | 168 #endif // MEDIA_BASE_BIND_TO_LOOP_H_ |
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