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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 |
11 #ifndef BASE_TRACKING_INFO_H_ | 11 #ifndef BASE_TRACKING_INFO_H_ |
12 #define BASE_TRACKING_INFO_H_ | 12 #define BASE_TRACKING_INFO_H_ |
13 | 13 |
| 14 #include "base/profiler/tracked_time.h" |
14 #include "base/time/time.h" | 15 #include "base/time/time.h" |
15 | 16 |
16 namespace tracked_objects { | 17 namespace tracked_objects { |
17 class Location; | 18 class Location; |
18 class Births; | 19 class Births; |
19 } | 20 } |
20 | 21 |
21 namespace base { | 22 namespace base { |
22 | 23 |
23 // This structure is copied around by value. | 24 // This structure is copied around by value. |
24 struct BASE_EXPORT TrackingInfo { | 25 struct BASE_EXPORT TrackingInfo { |
25 TrackingInfo(); | 26 TrackingInfo(); |
26 TrackingInfo(const tracked_objects::Location& posted_from, | 27 TrackingInfo(const tracked_objects::Location& posted_from, |
27 base::TimeTicks delayed_run_time); | 28 base::TimeTicks delayed_run_time); |
28 ~TrackingInfo(); | 29 ~TrackingInfo(); |
29 | 30 |
| 31 // To avoid conflating our stats with the delay duration in a PostDelayedTask, |
| 32 // we identify such tasks, and replace their post_time with the time they |
| 33 // were scheduled (requested?) to emerge from the delayed task queue. This |
| 34 // means that queuing delay for such tasks will show how long they went |
| 35 // unserviced, after they *could* be serviced. This is the same stat as we |
| 36 // have for non-delayed tasks, and we consistently call it queuing delay. |
| 37 tracked_objects::TrackedTime EffectiveTimePosted() const { |
| 38 return tracked_objects::TrackedTime( |
| 39 delayed_run_time.is_null() ? time_posted : delayed_run_time); |
| 40 } |
| 41 |
30 // Record of location and thread that the task came from. | 42 // Record of location and thread that the task came from. |
31 tracked_objects::Births* birth_tally; | 43 tracked_objects::Births* birth_tally; |
32 | 44 |
33 // Time when the related task was posted. | 45 // Time when the related task was posted. |
34 base::TimeTicks time_posted; | 46 base::TimeTicks time_posted; |
35 | 47 |
36 // The time when the task should be run. | 48 // The time when the task should be run. |
37 base::TimeTicks delayed_run_time; | 49 base::TimeTicks delayed_run_time; |
38 }; | 50 }; |
39 | 51 |
40 } // namespace base | 52 } // namespace base |
41 | 53 |
42 #endif // BASE_TRACKING_INFO_H_ | 54 #endif // BASE_TRACKING_INFO_H_ |
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