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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 COMPONENTS_SCHEDULER_CHILD_SCHEDULER_HELPER_H_ | 5 #ifndef COMPONENTS_SCHEDULER_CHILD_SCHEDULER_HELPER_H_ |
6 #define COMPONENTS_SCHEDULER_CHILD_SCHEDULER_HELPER_H_ | 6 #define COMPONENTS_SCHEDULER_CHILD_SCHEDULER_HELPER_H_ |
7 | 7 |
| 8 #include "base/time/tick_clock.h" |
8 #include "components/scheduler/base/task_queue_manager.h" | 9 #include "components/scheduler/base/task_queue_manager.h" |
9 #include "components/scheduler/base/task_queue_selector.h" | 10 #include "components/scheduler/base/task_queue_selector.h" |
10 #include "components/scheduler/scheduler_export.h" | 11 #include "components/scheduler/scheduler_export.h" |
11 | 12 |
12 namespace base { | 13 namespace base { |
13 class TickClock; | 14 class TickClock; |
14 } | 15 } |
15 | 16 |
16 namespace scheduler { | 17 namespace scheduler { |
17 | 18 |
18 class SchedulerTaskRunnerDelegate; | 19 class SchedulerTqmDelegate; |
19 | 20 |
20 // Common scheduler functionality for default tasks. | 21 // Common scheduler functionality for default tasks. |
21 class SCHEDULER_EXPORT SchedulerHelper : public TaskQueueManager::Observer { | 22 class SCHEDULER_EXPORT SchedulerHelper : public TaskQueueManager::Observer { |
22 public: | 23 public: |
23 // Category strings must have application lifetime (statics or | 24 // Category strings must have application lifetime (statics or |
24 // literals). They may not include " chars. | 25 // literals). They may not include " chars. |
25 SchedulerHelper(scoped_refptr<SchedulerTaskRunnerDelegate> main_task_runner, | 26 SchedulerHelper( |
26 const char* tracing_category, | 27 scoped_refptr<SchedulerTqmDelegate> task_queue_manager_delegate, |
27 const char* disabled_by_default_tracing_category, | 28 const char* tracing_category, |
28 const char* disabled_by_default_verbose_tracing_category); | 29 const char* disabled_by_default_tracing_category, |
| 30 const char* disabled_by_default_verbose_tracing_category); |
29 ~SchedulerHelper() override; | 31 ~SchedulerHelper() override; |
30 | 32 |
31 // TaskQueueManager::Observer implementation: | 33 // TaskQueueManager::Observer implementation: |
32 void OnUnregisterTaskQueue( | 34 void OnUnregisterTaskQueue( |
33 const scoped_refptr<internal::TaskQueueImpl>& queue) override; | 35 const scoped_refptr<internal::TaskQueueImpl>& queue) override; |
34 | 36 |
35 // Returns the default task runner. | 37 // Returns the default task runner. |
36 scoped_refptr<TaskQueue> DefaultTaskRunner(); | 38 scoped_refptr<TaskQueue> DefaultTaskRunner(); |
37 | 39 |
38 // Returns the control task runner. Tasks posted to this runner are executed | 40 // Returns the control task runner. Tasks posted to this runner are executed |
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74 virtual void OnUnregisterTaskQueue( | 76 virtual void OnUnregisterTaskQueue( |
75 const scoped_refptr<TaskQueue>& queue) = 0; | 77 const scoped_refptr<TaskQueue>& queue) = 0; |
76 }; | 78 }; |
77 | 79 |
78 // Called once to set the Observer. This function is called on the main | 80 // Called once to set the Observer. This function is called on the main |
79 // thread. If |observer| is null, then no callbacks will occur. | 81 // thread. If |observer| is null, then no callbacks will occur. |
80 // Note |observer| is expected to outlive the SchedulerHelper. | 82 // Note |observer| is expected to outlive the SchedulerHelper. |
81 void SetObserver(Observer* observer); | 83 void SetObserver(Observer* observer); |
82 | 84 |
83 // Accessor methods. | 85 // Accessor methods. |
84 base::TimeTicks Now() const; | 86 base::TickClock* tick_clock() const; |
85 base::TimeTicks NextPendingDelayedTaskRunTime() const; | 87 base::TimeTicks NextPendingDelayedTaskRunTime() const; |
86 bool GetAndClearSystemIsQuiescentBit(); | 88 bool GetAndClearSystemIsQuiescentBit(); |
87 | 89 |
88 // Test helpers. | 90 // Test helpers. |
89 void SetTimeSourceForTesting(scoped_ptr<base::TickClock> time_source); | |
90 void SetWorkBatchSizeForTesting(size_t work_batch_size); | 91 void SetWorkBatchSizeForTesting(size_t work_batch_size); |
91 TaskQueueManager* GetTaskQueueManagerForTesting(); | 92 TaskQueueManager* GetTaskQueueManagerForTesting(); |
92 | 93 |
93 private: | 94 private: |
94 friend class SchedulerHelperTest; | 95 friend class SchedulerHelperTest; |
95 | 96 |
96 base::ThreadChecker thread_checker_; | 97 base::ThreadChecker thread_checker_; |
97 scoped_refptr<SchedulerTaskRunnerDelegate> main_task_runner_; | 98 scoped_refptr<SchedulerTqmDelegate> task_queue_manager_delegate_; |
98 scoped_ptr<TaskQueueManager> task_queue_manager_; | 99 scoped_ptr<TaskQueueManager> task_queue_manager_; |
99 scoped_refptr<TaskQueue> control_task_runner_; | 100 scoped_refptr<TaskQueue> control_task_runner_; |
100 scoped_refptr<TaskQueue> control_after_wakeup_task_runner_; | 101 scoped_refptr<TaskQueue> control_after_wakeup_task_runner_; |
101 scoped_refptr<TaskQueue> default_task_runner_; | 102 scoped_refptr<TaskQueue> default_task_runner_; |
102 | 103 |
103 scoped_ptr<base::TickClock> time_source_; | |
104 | |
105 Observer* observer_; // NOT OWNED | 104 Observer* observer_; // NOT OWNED |
106 const char* tracing_category_; | 105 const char* tracing_category_; |
107 const char* disabled_by_default_tracing_category_; | 106 const char* disabled_by_default_tracing_category_; |
108 | 107 |
109 DISALLOW_COPY_AND_ASSIGN(SchedulerHelper); | 108 DISALLOW_COPY_AND_ASSIGN(SchedulerHelper); |
110 }; | 109 }; |
111 | 110 |
112 } // namespace scheduler | 111 } // namespace scheduler |
113 | 112 |
114 #endif // COMPONENTS_SCHEDULER_CHILD_SCHEDULER_HELPER_H_ | 113 #endif // COMPONENTS_SCHEDULER_CHILD_SCHEDULER_HELPER_H_ |
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