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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_TASK_SCHEDULER_TASK_SCHEDULER_IMPL_H_ | 5 #ifndef BASE_TASK_SCHEDULER_TASK_SCHEDULER_IMPL_H_ |
6 #define BASE_TASK_SCHEDULER_TASK_SCHEDULER_IMPL_H_ | 6 #define BASE_TASK_SCHEDULER_TASK_SCHEDULER_IMPL_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "base/base_export.h" | 11 #include "base/base_export.h" |
12 #include "base/callback.h" | 12 #include "base/callback.h" |
13 #include "base/logging.h" | 13 #include "base/logging.h" |
14 #include "base/macros.h" | 14 #include "base/macros.h" |
15 #include "base/memory/ptr_util.h" | |
15 #include "base/memory/ref_counted.h" | 16 #include "base/memory/ref_counted.h" |
16 #include "base/strings/string_piece.h" | 17 #include "base/strings/string_piece.h" |
17 #include "base/synchronization/atomic_flag.h" | 18 #include "base/synchronization/atomic_flag.h" |
18 #include "base/task_scheduler/delayed_task_manager.h" | 19 #include "base/task_scheduler/delayed_task_manager.h" |
19 #include "base/task_scheduler/scheduler_single_thread_task_runner_manager.h" | 20 #include "base/task_scheduler/scheduler_single_thread_task_runner_manager.h" |
20 #include "base/task_scheduler/scheduler_worker_pool_impl.h" | 21 #include "base/task_scheduler/scheduler_worker_pool_impl.h" |
21 #include "base/task_scheduler/single_thread_task_runner_thread_mode.h" | 22 #include "base/task_scheduler/single_thread_task_runner_thread_mode.h" |
22 #include "base/task_scheduler/task_scheduler.h" | 23 #include "base/task_scheduler/task_scheduler.h" |
23 #include "base/task_scheduler/task_tracker.h" | 24 #include "base/task_scheduler/task_tracker.h" |
24 #include "base/task_scheduler/task_traits.h" | 25 #include "base/task_scheduler/task_traits.h" |
25 #include "base/threading/thread.h" | 26 #include "base/threading/thread.h" |
26 #include "build/build_config.h" | 27 #include "build/build_config.h" |
27 | 28 |
28 #if defined(OS_POSIX) && !defined(OS_NACL_SFI) | 29 #if defined(OS_POSIX) && !defined(OS_NACL_SFI) |
29 #include "base/task_scheduler/task_tracker_posix.h" | 30 #include "base/task_scheduler/task_tracker_posix.h" |
30 #endif | 31 #endif |
31 | 32 |
32 namespace base { | 33 namespace base { |
33 | 34 |
34 class HistogramBase; | 35 class HistogramBase; |
35 | 36 |
36 namespace internal { | 37 namespace internal { |
37 | 38 |
38 // Default TaskScheduler implementation. This class is thread-safe. | 39 // Default TaskScheduler implementation. This class is thread-safe. |
39 class BASE_EXPORT TaskSchedulerImpl : public TaskScheduler { | 40 class BASE_EXPORT TaskSchedulerImpl : public TaskScheduler { |
40 public: | 41 public: |
41 // |name| is used to label threads and histograms. | 42 using TaskTrackerType = |
gab
2017/05/23 15:26:13
TaskTrackerImpl?
Also, move this to an early priv
fdoray
2017/05/25 19:17:34
Done.
| |
42 explicit TaskSchedulerImpl(StringPiece name); | 43 #if defined(OS_POSIX) && !defined(OS_NACL_SFI) |
44 TaskTrackerPosix; | |
45 #else | |
46 TaskTracker; | |
47 #endif | |
48 | |
49 // |name| is used to label threads and histograms. |task_tracker| can be used | |
50 // for tests that need more execution control. By default, you get the | |
51 // production TaskTracker. | |
gab
2017/05/23 15:26:13
By default, the production TaskTracker is used.
fdoray
2017/05/25 19:17:34
Done.
| |
52 explicit TaskSchedulerImpl(StringPiece name, | |
53 std::unique_ptr<TaskTrackerType> task_tracker = | |
54 MakeUnique<TaskTrackerType>()); | |
43 ~TaskSchedulerImpl() override; | 55 ~TaskSchedulerImpl() override; |
44 | 56 |
45 // TaskScheduler: | 57 // TaskScheduler: |
46 void Start(const TaskScheduler::InitParams& init_params) override; | 58 void Start(const TaskScheduler::InitParams& init_params) override; |
47 void PostDelayedTaskWithTraits(const tracked_objects::Location& from_here, | 59 void PostDelayedTaskWithTraits(const tracked_objects::Location& from_here, |
48 const TaskTraits& traits, | 60 const TaskTraits& traits, |
49 OnceClosure task, | 61 OnceClosure task, |
50 TimeDelta delay) override; | 62 TimeDelta delay) override; |
51 scoped_refptr<TaskRunner> CreateTaskRunnerWithTraits( | 63 scoped_refptr<TaskRunner> CreateTaskRunnerWithTraits( |
52 const TaskTraits& traits) override; | 64 const TaskTraits& traits) override; |
(...skipping 14 matching lines...) Expand all Loading... | |
67 void FlushForTesting() override; | 79 void FlushForTesting() override; |
68 void JoinForTesting() override; | 80 void JoinForTesting() override; |
69 | 81 |
70 private: | 82 private: |
71 // Returns the worker pool that runs Tasks with |traits|. | 83 // Returns the worker pool that runs Tasks with |traits|. |
72 SchedulerWorkerPoolImpl* GetWorkerPoolForTraits( | 84 SchedulerWorkerPoolImpl* GetWorkerPoolForTraits( |
73 const TaskTraits& traits) const; | 85 const TaskTraits& traits) const; |
74 | 86 |
75 const std::string name_; | 87 const std::string name_; |
76 Thread service_thread_; | 88 Thread service_thread_; |
77 #if defined(OS_POSIX) && !defined(OS_NACL_SFI) | 89 const std::unique_ptr<TaskTrackerType> task_tracker_; |
78 TaskTrackerPosix task_tracker_; | |
79 #else | |
80 TaskTracker task_tracker_; | |
81 #endif | |
82 DelayedTaskManager delayed_task_manager_; | 90 DelayedTaskManager delayed_task_manager_; |
83 SchedulerSingleThreadTaskRunnerManager single_thread_task_runner_manager_; | 91 SchedulerSingleThreadTaskRunnerManager single_thread_task_runner_manager_; |
84 | 92 |
85 // There are 4 SchedulerWorkerPoolImpl in this array to match the 4 | 93 // There are 4 SchedulerWorkerPoolImpl in this array to match the 4 |
86 // SchedulerWorkerPoolParams in TaskScheduler::InitParams. | 94 // SchedulerWorkerPoolParams in TaskScheduler::InitParams. |
87 std::unique_ptr<SchedulerWorkerPoolImpl> worker_pools_[4]; | 95 std::unique_ptr<SchedulerWorkerPoolImpl> worker_pools_[4]; |
88 | 96 |
89 #if DCHECK_IS_ON() | 97 #if DCHECK_IS_ON() |
90 // Set once JoinForTesting() has returned. | 98 // Set once JoinForTesting() has returned. |
91 AtomicFlag join_for_testing_returned_; | 99 AtomicFlag join_for_testing_returned_; |
92 #endif | 100 #endif |
93 | 101 |
94 DISALLOW_COPY_AND_ASSIGN(TaskSchedulerImpl); | 102 DISALLOW_COPY_AND_ASSIGN(TaskSchedulerImpl); |
95 }; | 103 }; |
96 | 104 |
97 } // namespace internal | 105 } // namespace internal |
98 } // namespace base | 106 } // namespace base |
99 | 107 |
100 #endif // BASE_TASK_SCHEDULER_TASK_SCHEDULER_IMPL_H_ | 108 #endif // BASE_TASK_SCHEDULER_TASK_SCHEDULER_IMPL_H_ |
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