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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_SEQUENCE_SORT_KEY_H_ | 5 #ifndef BASE_TASK_SCHEDULER_SEQUENCE_SORT_KEY_H_ |
6 #define BASE_TASK_SCHEDULER_SEQUENCE_SORT_KEY_H_ | 6 #define BASE_TASK_SCHEDULER_SEQUENCE_SORT_KEY_H_ |
7 | 7 |
8 #include "base/base_export.h" | 8 #include "base/base_export.h" |
9 #include "base/task_scheduler/task_traits.h" | 9 #include "base/task_scheduler/task_traits.h" |
10 #include "base/time/time.h" | 10 #include "base/time/time.h" |
11 | 11 |
12 namespace base { | 12 namespace base { |
13 namespace internal { | 13 namespace internal { |
14 | 14 |
15 // An immutable but assignable representation of the priority of a Sequence. | 15 // An immutable but assignable representation of the priority of a Sequence. |
16 class BASE_EXPORT SequenceSortKey final { | 16 class BASE_EXPORT SequenceSortKey final { |
17 public: | 17 public: |
18 SequenceSortKey(TaskPriority priority, TimeTicks next_task_sequenced_time); | 18 SequenceSortKey(TaskPriority priority, TimeTicks next_task_sequenced_time); |
19 | 19 |
| 20 TaskPriority priority() const { return priority_; } |
| 21 |
20 bool operator<(const SequenceSortKey& other) const; | 22 bool operator<(const SequenceSortKey& other) const; |
21 bool operator>(const SequenceSortKey& other) const { return other < *this; } | 23 bool operator>(const SequenceSortKey& other) const { return other < *this; } |
22 | 24 |
23 bool operator==(const SequenceSortKey& other) const { | 25 bool operator==(const SequenceSortKey& other) const { |
24 return priority_ == other.priority_ && | 26 return priority_ == other.priority_ && |
25 next_task_sequenced_time_ == other.next_task_sequenced_time_; | 27 next_task_sequenced_time_ == other.next_task_sequenced_time_; |
26 } | 28 } |
27 bool operator!=(const SequenceSortKey& other) const { | 29 bool operator!=(const SequenceSortKey& other) const { |
28 return !(other == *this); | 30 return !(other == *this); |
29 }; | 31 }; |
30 | 32 |
31 private: | 33 private: |
32 // The private section allows this class to keep its immutable property while | 34 // The private section allows this class to keep its immutable property while |
33 // being copy-assignable (i.e. instead of making its members const). | 35 // being copy-assignable (i.e. instead of making its members const). |
34 | 36 |
35 // Highest task priority in the sequence at the time this sort key was | 37 // Highest task priority in the sequence at the time this sort key was |
36 // created. | 38 // created. |
37 TaskPriority priority_; | 39 TaskPriority priority_; |
38 | 40 |
39 // Sequenced time of the next task to run in the sequence at the time this | 41 // Sequenced time of the next task to run in the sequence at the time this |
40 // sort key was created. | 42 // sort key was created. |
41 TimeTicks next_task_sequenced_time_; | 43 TimeTicks next_task_sequenced_time_; |
42 }; | 44 }; |
43 | 45 |
44 } // namespace internal | 46 } // namespace internal |
45 } // namespace base | 47 } // namespace base |
46 | 48 |
47 #endif // BASE_TASK_SCHEDULER_SEQUENCE_SORT_KEY_H_ | 49 #endif // BASE_TASK_SCHEDULER_SEQUENCE_SORT_KEY_H_ |
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