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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 REMOTING_BASE_AUTO_THREAD_TASK_RUNNER_H_ | 5 #ifndef REMOTING_BASE_AUTO_THREAD_TASK_RUNNER_H_ |
6 #define REMOTING_BASE_AUTO_THREAD_TASK_RUNNER_H_ | 6 #define REMOTING_BASE_AUTO_THREAD_TASK_RUNNER_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/callback.h" | 9 #include "base/callback.h" |
10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
11 #include "base/message_loop/message_loop.h" | 11 #include "base/message_loop/message_loop.h" |
12 #include "base/single_thread_task_runner.h" | 12 #include "base/single_thread_task_runner.h" |
13 | 13 |
14 namespace remoting { | 14 namespace remoting { |
15 | 15 |
16 // A wrapper around |SingleThreadTaskRunner| that provides automatic lifetime | 16 // A wrapper around |SingleThreadTaskRunner| that provides automatic lifetime |
17 // management, by posting a caller-supplied task to the underlying task runner | 17 // management, by posting a caller-supplied task to the underlying task runner |
18 // when no more references remain. | 18 // when no more references remain. |
19 class AutoThreadTaskRunner : public base::SingleThreadTaskRunner { | 19 class AutoThreadTaskRunner : public base::SingleThreadTaskRunner { |
20 public: | 20 public: |
21 // Constructs an instance of |AutoThreadTaskRunner| wrapping |task_runner|. | 21 // Constructs an instance of |AutoThreadTaskRunner| wrapping |task_runner|. |
22 // |stop_task| is posted to |task_runner| when the last reference to | 22 // |stop_task| is posted to |task_runner| when the last reference to |
23 // the AutoThreadTaskRunner is dropped. | 23 // the AutoThreadTaskRunner is dropped. |
24 AutoThreadTaskRunner(scoped_refptr<base::SingleThreadTaskRunner> task_runner, | 24 AutoThreadTaskRunner(scoped_refptr<base::SingleThreadTaskRunner> task_runner, |
25 const base::Closure& stop_task); | 25 const base::Closure& stop_task); |
26 | 26 |
27 // SingleThreadTaskRunner implementation | 27 // SingleThreadTaskRunner implementation |
28 virtual bool PostDelayedTask( | 28 bool PostDelayedTask(const tracked_objects::Location& from_here, |
29 const tracked_objects::Location& from_here, | 29 const base::Closure& task, |
30 const base::Closure& task, | 30 base::TimeDelta delay) override; |
31 base::TimeDelta delay) override; | 31 bool PostNonNestableDelayedTask(const tracked_objects::Location& from_here, |
32 virtual bool PostNonNestableDelayedTask( | 32 const base::Closure& task, |
33 const tracked_objects::Location& from_here, | 33 base::TimeDelta delay) override; |
34 const base::Closure& task, | 34 bool RunsTasksOnCurrentThread() const override; |
35 base::TimeDelta delay) override; | |
36 virtual bool RunsTasksOnCurrentThread() const override; | |
37 | 35 |
38 private: | 36 private: |
39 virtual ~AutoThreadTaskRunner(); | 37 ~AutoThreadTaskRunner() override; |
40 | 38 |
41 // Task posted to |task_runner_| to notify the caller that it may be stopped. | 39 // Task posted to |task_runner_| to notify the caller that it may be stopped. |
42 base::Closure stop_task_; | 40 base::Closure stop_task_; |
43 | 41 |
44 // The wrapped task runner. | 42 // The wrapped task runner. |
45 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; | 43 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
46 | 44 |
47 DISALLOW_COPY_AND_ASSIGN(AutoThreadTaskRunner); | 45 DISALLOW_COPY_AND_ASSIGN(AutoThreadTaskRunner); |
48 }; | 46 }; |
49 | 47 |
50 } // namespace remoting | 48 } // namespace remoting |
51 | 49 |
52 #endif // REMOTING_BASE_AUTO_THREAD_TASK_RUNNER_H_ | 50 #endif // REMOTING_BASE_AUTO_THREAD_TASK_RUNNER_H_ |
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