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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_H_ | 5 #ifndef BASE_TASK_SCHEDULER_TASK_H_ |
6 #define BASE_TASK_SCHEDULER_TASK_H_ | 6 #define BASE_TASK_SCHEDULER_TASK_H_ |
7 | 7 |
8 #include "base/base_export.h" | 8 #include "base/base_export.h" |
9 #include "base/callback_forward.h" | 9 #include "base/callback_forward.h" |
10 #include "base/location.h" | 10 #include "base/location.h" |
11 #include "base/pending_task.h" | 11 #include "base/pending_task.h" |
12 #include "base/task_scheduler/task_traits.h" | 12 #include "base/task_scheduler/task_traits.h" |
13 #include "base/time/time.h" | 13 #include "base/time/time.h" |
14 | 14 |
15 namespace base { | 15 namespace base { |
16 namespace internal { | 16 namespace internal { |
17 | 17 |
18 // A task is a unit of work inside the task scheduler. Support for tracing and | 18 // A task is a unit of work inside the task scheduler. Support for tracing and |
19 // profiling inherited from PendingTask. | 19 // profiling inherited from PendingTask. |
20 struct BASE_EXPORT Task : public PendingTask { | 20 struct BASE_EXPORT Task : public PendingTask { |
| 21 // |posted_from| is the site the task was posted from. |task| is the closure |
| 22 // to run. |traits| is metadata about the task. |delayed_run_time| is the time |
| 23 // at which the task should be run (null TimeTicks if the task can run |
| 24 // immediately). |
21 Task(const tracked_objects::Location& posted_from, | 25 Task(const tracked_objects::Location& posted_from, |
22 const Closure& task, | 26 const Closure& task, |
23 const TaskTraits& traits); | 27 const TaskTraits& traits, |
| 28 const TimeTicks& delayed_run_time); |
24 ~Task(); | 29 ~Task(); |
25 | 30 |
26 // The TaskTraits of this task. | 31 // The TaskTraits of this task. |
27 const TaskTraits traits; | 32 const TaskTraits traits; |
28 | 33 |
29 // The time at which the task was inserted in its sequence. For an undelayed | 34 // The time at which the task was inserted in its sequence. For an undelayed |
30 // task, this happens at post time. For a delayed task, this happens some | 35 // task, this happens at post time. For a delayed task, this happens some |
31 // time after the task's delay has expired. If the task hasn't been inserted | 36 // time after the task's delay has expired. If the task hasn't been inserted |
32 // in a sequence yet, this defaults to a null TimeTicks. | 37 // in a sequence yet, this defaults to a null TimeTicks. |
33 TimeTicks sequenced_time; | 38 TimeTicks sequenced_time; |
34 }; | 39 }; |
35 | 40 |
36 } // namespace internal | 41 } // namespace internal |
37 } // namespace base | 42 } // namespace base |
38 | 43 |
39 #endif // BASE_TASK_SCHEDULER_TASK_H_ | 44 #endif // BASE_TASK_SCHEDULER_TASK_H_ |
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