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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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_PENDING_TASK_H_ | 5 #ifndef BASE_PENDING_TASK_H_ |
6 #define BASE_PENDING_TASK_H_ | 6 #define BASE_PENDING_TASK_H_ |
7 | 7 |
| 8 #include <array> |
8 #include <queue> | 9 #include <queue> |
9 | 10 |
10 #include "base/base_export.h" | 11 #include "base/base_export.h" |
11 #include "base/callback.h" | 12 #include "base/callback.h" |
12 #include "base/location.h" | 13 #include "base/location.h" |
13 #include "base/time/time.h" | 14 #include "base/time/time.h" |
14 #include "base/tracking_info.h" | 15 #include "base/tracking_info.h" |
15 | 16 |
16 namespace base { | 17 namespace base { |
17 | 18 |
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30 | 31 |
31 // Used to support sorting. | 32 // Used to support sorting. |
32 bool operator<(const PendingTask& other) const; | 33 bool operator<(const PendingTask& other) const; |
33 | 34 |
34 // The task to run. | 35 // The task to run. |
35 OnceClosure task; | 36 OnceClosure task; |
36 | 37 |
37 // The site this PendingTask was posted from. | 38 // The site this PendingTask was posted from. |
38 tracked_objects::Location posted_from; | 39 tracked_objects::Location posted_from; |
39 | 40 |
| 41 // Task backtrace. |
| 42 std::array<const void*, 4> task_backtrace; |
| 43 |
40 // Secondary sort key for run time. | 44 // Secondary sort key for run time. |
41 int sequence_num; | 45 int sequence_num; |
42 | 46 |
43 // OK to dispatch from a nested loop. | 47 // OK to dispatch from a nested loop. |
44 bool nestable; | 48 bool nestable; |
45 | 49 |
46 // Needs high resolution timers. | 50 // Needs high resolution timers. |
47 bool is_high_res; | 51 bool is_high_res; |
48 }; | 52 }; |
49 | 53 |
50 using TaskQueue = std::queue<PendingTask>; | 54 using TaskQueue = std::queue<PendingTask>; |
51 | 55 |
52 // PendingTasks are sorted by their |delayed_run_time| property. | 56 // PendingTasks are sorted by their |delayed_run_time| property. |
53 using DelayedTaskQueue = std::priority_queue<base::PendingTask>; | 57 using DelayedTaskQueue = std::priority_queue<base::PendingTask>; |
54 | 58 |
55 } // namespace base | 59 } // namespace base |
56 | 60 |
57 #endif // BASE_PENDING_TASK_H_ | 61 #endif // BASE_PENDING_TASK_H_ |
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