base/tracking_info.h

   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/time.h"
  15
  16 namespace tracked_objects {
  17 class Location;
  18 class Births;
  19 }
  20
  21 namespace base {
  22
  23 // This structure is copied around by value.
  24 struct BASE_EXPORT TrackingInfo {
  25   TrackingInfo();
  26   TrackingInfo(const tracked_objects::Location& posted_from,
  27                base::TimeTicks delayed_run_time);
  28   ~TrackingInfo();
  29
  30   // Record of location and thread that the task came from.
  31   tracked_objects::Births* birth_tally;
  32
  33   // Time when the related task was posted.
  34   base::TimeTicks time_posted;
  35
  36   // The time when the task should be run.
  37   base::TimeTicks delayed_run_time;
  38 };
  39
  40 }  // namespace base
  41
  42 #endif  // BASE_TRACKING_INFO_H_