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comparison: security/sandbox/chromium/base/pending_task.h
security/sandbox/chromium/base/pending_task.h
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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef PENDING_TASK_H_ | |
| 6 #define PENDING_TASK_H_ | |
| 7 | |
| 8 #include <queue> | |
| 9 | |
| 10 #include "base/base_export.h" | |
| 11 #include "base/callback.h" | |
| 12 #include "base/location.h" | |
| 13 #include "base/time/time.h" | |
| 14 #include "base/tracking_info.h" | |
| 15 | |
| 16 namespace base { | |
| 17 | |
| 18 // Contains data about a pending task. Stored in TaskQueue and DelayedTaskQueue | |
| 19 // for use by classes that queue and execute tasks. | |
| 20 struct BASE_EXPORT PendingTask : public TrackingInfo { | |
| 21 #if _MSC_VER >= 1700 | |
| 22 PendingTask(); | |
| 23 #endif | |
| 24 PendingTask(const tracked_objects::Location& posted_from, | |
| 25 const Closure& task); | |
| 26 PendingTask(const tracked_objects::Location& posted_from, | |
| 27 const Closure& task, | |
| 28 TimeTicks delayed_run_time, | |
| 29 bool nestable); | |
| 30 ~PendingTask(); | |
| 31 | |
| 32 // Used to support sorting. | |
| 33 bool operator<(const PendingTask& other) const; | |
| 34 | |
| 35 // The task to run. | |
| 36 Closure task; | |
| 37 | |
| 38 // The site this PendingTask was posted from. | |
| 39 tracked_objects::Location posted_from; | |
| 40 | |
| 41 // Secondary sort key for run time. | |
| 42 int sequence_num; | |
| 43 | |
| 44 // OK to dispatch from a nested loop. | |
| 45 bool nestable; | |
| 46 }; | |
| 47 | |
| 48 // Wrapper around std::queue specialized for PendingTask which adds a Swap | |
| 49 // helper method. | |
| 50 class BASE_EXPORT TaskQueue : public std::queue<PendingTask> { | |
| 51 public: | |
| 52 void Swap(TaskQueue* queue); | |
| 53 }; | |
| 54 | |
| 55 // PendingTasks are sorted by their |delayed_run_time| property. | |
| 56 typedef std::priority_queue<base::PendingTask> DelayedTaskQueue; | |
| 57 | |
| 58 } // namespace base | |
| 59 | |
| 60 #endif // PENDING_TASK_H_ |
