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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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_TEST_SCOPED_TASK_SCHEDULER_H_ | 5 #ifndef BASE_TEST_SCOPED_TASK_SCHEDULER_H_ |
6 #define BASE_TEST_SCOPED_TASK_SCHEDULER_H_ | 6 #define BASE_TEST_SCOPED_TASK_SCHEDULER_H_ |
7 | 7 |
8 #include "base/macros.h" | 8 #include "base/macros.h" |
9 #include "base/threading/thread_checker.h" | 9 #include "base/threading/thread_checker.h" |
10 | 10 |
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34 // base::PostTask(FROM_HERE, base::Bind(&A)); | 34 // base::PostTask(FROM_HERE, base::Bind(&A)); |
35 // base::RunLoop::RunUntilIdle(); // Returns after running A. | 35 // base::RunLoop::RunUntilIdle(); // Returns after running A. |
36 // | 36 // |
37 // In this snippet, run_loop.Run() returns after running "B" and | 37 // In this snippet, run_loop.Run() returns after running "B" and |
38 // "RunLoop::Quit". | 38 // "RunLoop::Quit". |
39 // base::RunLoop run_loop; | 39 // base::RunLoop run_loop; |
40 // base::PostTask(FROM_HERE, base::Bind(&B)); | 40 // base::PostTask(FROM_HERE, base::Bind(&B)); |
41 // base::PostTask(FROM_HERE, base::Bind(&RunLoop::Quit, &run_loop)); | 41 // base::PostTask(FROM_HERE, base::Bind(&RunLoop::Quit, &run_loop)); |
42 // base::PostTask(FROM_HERE, base::Bind(&C)); | 42 // base::PostTask(FROM_HERE, base::Bind(&C)); |
43 // base::PostTaskWithTraits( | 43 // base::PostTaskWithTraits( |
44 // base::TaskTraits().WithShutdownBehavior( | 44 // {base::TaskShutdownBehavior::BLOCK_SHUTDOWN}, |
45 // base::TaskShutdownBehavior::BLOCK_SHUTDOWN), | |
46 // base::Bind(&D)); | 45 // base::Bind(&D)); |
47 // run_loop.Run(); // Returns after running B and RunLoop::Quit. | 46 // run_loop.Run(); // Returns after running B and RunLoop::Quit. |
48 // | 47 // |
49 // At this point, |scoped_task_scheduler| will be destroyed. The destructor | 48 // At this point, |scoped_task_scheduler| will be destroyed. The destructor |
50 // runs "D" because it's BLOCK_SHUTDOWN. "C" is skipped. | 49 // runs "D" because it's BLOCK_SHUTDOWN. "C" is skipped. |
51 class ScopedTaskScheduler { | 50 class ScopedTaskScheduler { |
52 public: | 51 public: |
53 // Registers a synchronous TaskScheduler on a thread that doesn't have a | 52 // Registers a synchronous TaskScheduler on a thread that doesn't have a |
54 // MessageLoop. | 53 // MessageLoop. |
55 // | 54 // |
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94 const TaskScheduler* task_scheduler_ = nullptr; | 93 const TaskScheduler* task_scheduler_ = nullptr; |
95 ThreadChecker thread_checker_; | 94 ThreadChecker thread_checker_; |
96 | 95 |
97 DISALLOW_COPY_AND_ASSIGN(ScopedTaskScheduler); | 96 DISALLOW_COPY_AND_ASSIGN(ScopedTaskScheduler); |
98 }; | 97 }; |
99 | 98 |
100 } // namespace test | 99 } // namespace test |
101 } // namespace base | 100 } // namespace base |
102 | 101 |
103 #endif // BASE_TEST_SCOPED_TASK_SCHEDULER_H_ | 102 #endif // BASE_TEST_SCOPED_TASK_SCHEDULER_H_ |
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