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comparison: security/sandbox/chromium/base/tracking_info.h
security/sandbox/chromium/base/tracking_info.h
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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // This is a simple struct with tracking information that is stored | |
| 6 // with a PendingTask (when message_loop is handling the task). | |
| 7 // Only the information that is shared with the profiler in tracked_objects | |
| 8 // are included in this structure. | |
| 9 | |
| 10 | |
| 11 #ifndef BASE_TRACKING_INFO_H_ | |
| 12 #define BASE_TRACKING_INFO_H_ | |
| 13 | |
| 14 #include "base/base_export.h" | |
| 15 #include "base/profiler/tracked_time.h" | |
| 16 #include "base/time/time.h" | |
| 17 | |
| 18 namespace tracked_objects { | |
| 19 class Location; | |
| 20 class Births; | |
| 21 } | |
| 22 | |
| 23 namespace base { | |
| 24 | |
| 25 // This structure is copied around by value. | |
| 26 struct BASE_EXPORT TrackingInfo { | |
| 27 TrackingInfo(); | |
| 28 TrackingInfo(const tracked_objects::Location& posted_from, | |
| 29 base::TimeTicks delayed_run_time); | |
| 30 ~TrackingInfo(); | |
| 31 | |
| 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 | |
| 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 | |
| 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. | |
| 38 tracked_objects::TrackedTime EffectiveTimePosted() const { | |
| 39 return tracked_objects::TrackedTime( | |
| 40 delayed_run_time.is_null() ? time_posted : delayed_run_time); | |
| 41 } | |
| 42 | |
| 43 // Record of location and thread that the task came from. | |
| 44 tracked_objects::Births* birth_tally; | |
| 45 | |
| 46 // Time when the related task was posted. | |
| 47 base::TimeTicks time_posted; | |
| 48 | |
| 49 // The time when the task should be run. | |
| 50 base::TimeTicks delayed_run_time; | |
| 51 }; | |
| 52 | |
| 53 } // namespace base | |
| 54 | |
| 55 #endif // BASE_TRACKING_INFO_H_ |
