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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 #ifndef BASE_MESSAGE_LOOP_MESSAGE_LOOP_PROXY_IMPL_H_ | 5 #ifndef BASE_MESSAGE_LOOP_MESSAGE_LOOP_TASK_RUNNER_H_ |
6 #define BASE_MESSAGE_LOOP_MESSAGE_LOOP_PROXY_IMPL_H_ | 6 #define BASE_MESSAGE_LOOP_MESSAGE_LOOP_TASK_RUNNER_H_ |
7 | 7 |
8 #include "base/base_export.h" | 8 #include "base/base_export.h" |
9 #include "base/memory/ref_counted.h" | 9 #include "base/memory/ref_counted.h" |
10 #include "base/message_loop/message_loop_proxy.h" | |
11 #include "base/pending_task.h" | 10 #include "base/pending_task.h" |
| 11 #include "base/single_thread_task_runner.h" |
12 #include "base/synchronization/lock.h" | 12 #include "base/synchronization/lock.h" |
13 #include "base/threading/platform_thread.h" | 13 #include "base/threading/platform_thread.h" |
14 | 14 |
15 namespace base { | 15 namespace base { |
16 namespace internal { | 16 namespace internal { |
17 | 17 |
18 class IncomingTaskQueue; | 18 class IncomingTaskQueue; |
19 | 19 |
20 // A stock implementation of MessageLoopProxy that is created and managed by a | 20 // A stock implementation of SingleThreadTaskRunner that is created and managed |
21 // MessageLoop. For now a MessageLoopProxyImpl can only be created as part of a | 21 // by a MessageLoop. For now a MessageLoopTaskRunner can only be created as |
22 // MessageLoop. | 22 // part of a MessageLoop. |
23 class BASE_EXPORT MessageLoopProxyImpl : public MessageLoopProxy { | 23 class BASE_EXPORT MessageLoopTaskRunner : public SingleThreadTaskRunner { |
24 public: | 24 public: |
25 explicit MessageLoopProxyImpl( | 25 explicit MessageLoopTaskRunner( |
26 scoped_refptr<IncomingTaskQueue> incoming_queue); | 26 scoped_refptr<IncomingTaskQueue> incoming_queue); |
27 | 27 |
28 // Initialize this message loop proxy on the current thread. | 28 // Initialize this message loop task runner on the current thread. |
29 void BindToCurrentThread(); | 29 void BindToCurrentThread(); |
30 | 30 |
31 // MessageLoopProxy implementation | 31 // SingleThreadTaskRunner implementation |
32 bool PostDelayedTask(const tracked_objects::Location& from_here, | 32 bool PostDelayedTask(const tracked_objects::Location& from_here, |
33 const base::Closure& task, | 33 const base::Closure& task, |
34 base::TimeDelta delay) override; | 34 base::TimeDelta delay) override; |
35 bool PostNonNestableDelayedTask(const tracked_objects::Location& from_here, | 35 bool PostNonNestableDelayedTask(const tracked_objects::Location& from_here, |
36 const base::Closure& task, | 36 const base::Closure& task, |
37 base::TimeDelta delay) override; | 37 base::TimeDelta delay) override; |
38 bool RunsTasksOnCurrentThread() const override; | 38 bool RunsTasksOnCurrentThread() const override; |
39 | 39 |
40 private: | 40 private: |
41 friend class RefCountedThreadSafe<MessageLoopProxyImpl>; | 41 friend class RefCountedThreadSafe<MessageLoopTaskRunner>; |
42 ~MessageLoopProxyImpl() override; | 42 ~MessageLoopTaskRunner() override; |
43 | 43 |
44 // THe incoming queue receiving all posted tasks. | 44 // The incoming queue receiving all posted tasks. |
45 scoped_refptr<IncomingTaskQueue> incoming_queue_; | 45 scoped_refptr<IncomingTaskQueue> incoming_queue_; |
46 | 46 |
47 // ID of the thread |this| was created on. Could be accessed on multiple | 47 // ID of the thread |this| was created on. Could be accessed on multiple |
48 // threads, protected by |valid_thread_id_lock_|. | 48 // threads, protected by |valid_thread_id_lock_|. |
49 PlatformThreadId valid_thread_id_; | 49 PlatformThreadId valid_thread_id_; |
50 mutable Lock valid_thread_id_lock_; | 50 mutable Lock valid_thread_id_lock_; |
51 | 51 |
52 DISALLOW_COPY_AND_ASSIGN(MessageLoopProxyImpl); | 52 DISALLOW_COPY_AND_ASSIGN(MessageLoopTaskRunner); |
53 }; | 53 }; |
54 | 54 |
55 } // namespace internal | 55 } // namespace internal |
56 } // namespace base | 56 } // namespace base |
57 | 57 |
58 #endif // BASE_MESSAGE_LOOP_MESSAGE_LOOP_PROXY_IMPL_H_ | 58 #endif // BASE_MESSAGE_LOOP_MESSAGE_LOOP_TASK_RUNNER_H_ |
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