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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 // This is a simple struct with tracking information that is stored | 5 // This is a simple struct with tracking information that is stored |
6 // with a PendingTask (when message_loop is handling the task). | 6 // with a PendingTask (when message_loop is handling the task). |
7 // Only the information that is shared with the profiler in tracked_objects | 7 // Only the information that is shared with the profiler in tracked_objects |
8 // are included in this structure. | 8 // are included in this structure. |
9 | 9 |
10 | 10 |
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29 base::TimeTicks delayed_run_time); | 29 base::TimeTicks delayed_run_time); |
30 ~TrackingInfo(); | 30 ~TrackingInfo(); |
31 | 31 |
32 // To avoid conflating our stats with the delay duration in a PostDelayedTask, | 32 // To avoid conflating our stats with the delay duration in a PostDelayedTask, |
33 // we identify such tasks, and replace their post_time with the time they | 33 // we identify such tasks, and replace their post_time with the time they |
34 // were scheduled (requested?) to emerge from the delayed task queue. This | 34 // were scheduled (requested?) to emerge from the delayed task queue. This |
35 // means that queuing delay for such tasks will show how long they went | 35 // means that queuing delay for such tasks will show how long they went |
36 // unserviced, after they *could* be serviced. This is the same stat as we | 36 // unserviced, after they *could* be serviced. This is the same stat as we |
37 // have for non-delayed tasks, and we consistently call it queuing delay. | 37 // have for non-delayed tasks, and we consistently call it queuing delay. |
38 tracked_objects::TrackedTime EffectiveTimePosted() const { | 38 tracked_objects::TrackedTime EffectiveTimePosted() const { |
39 return tracked_objects::TrackedTime( | 39 return delayed_run_time.is_null() |
40 delayed_run_time.is_null() ? time_posted : delayed_run_time); | 40 ? time_posted |
| 41 : tracked_objects::TrackedTime(delayed_run_time); |
41 } | 42 } |
42 | 43 |
43 // Record of location and thread that the task came from. | 44 // Record of location and thread that the task came from. |
44 tracked_objects::Births* birth_tally; | 45 tracked_objects::Births* birth_tally; |
45 | 46 |
46 // Time when the related task was posted. | 47 // Time when the related task was posted. Note that this value may be empty |
47 base::TimeTicks time_posted; | 48 // if task profiling is disabled, and should only be used in conjunction with |
| 49 // profiling-related reporting. |
| 50 tracked_objects::TrackedTime time_posted; |
48 | 51 |
49 // The time when the task should be run. | 52 // The time when the task should be run. |
50 base::TimeTicks delayed_run_time; | 53 base::TimeTicks delayed_run_time; |
51 }; | 54 }; |
52 | 55 |
53 } // namespace base | 56 } // namespace base |
54 | 57 |
55 #endif // BASE_TRACKING_INFO_H_ | 58 #endif // BASE_TRACKING_INFO_H_ |
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