Wed, 31 Dec 2014 06:09:35 +0100
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
michael@0 | 1 | // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
michael@0 | 2 | // Use of this source code is governed by a BSD-style license that can be |
michael@0 | 3 | // found in the LICENSE file. |
michael@0 | 4 | |
michael@0 | 5 | #ifndef PENDING_TASK_H_ |
michael@0 | 6 | #define PENDING_TASK_H_ |
michael@0 | 7 | |
michael@0 | 8 | #include <queue> |
michael@0 | 9 | |
michael@0 | 10 | #include "base/base_export.h" |
michael@0 | 11 | #include "base/callback.h" |
michael@0 | 12 | #include "base/location.h" |
michael@0 | 13 | #include "base/time/time.h" |
michael@0 | 14 | #include "base/tracking_info.h" |
michael@0 | 15 | |
michael@0 | 16 | namespace base { |
michael@0 | 17 | |
michael@0 | 18 | // Contains data about a pending task. Stored in TaskQueue and DelayedTaskQueue |
michael@0 | 19 | // for use by classes that queue and execute tasks. |
michael@0 | 20 | struct BASE_EXPORT PendingTask : public TrackingInfo { |
michael@0 | 21 | #if _MSC_VER >= 1700 |
michael@0 | 22 | PendingTask(); |
michael@0 | 23 | #endif |
michael@0 | 24 | PendingTask(const tracked_objects::Location& posted_from, |
michael@0 | 25 | const Closure& task); |
michael@0 | 26 | PendingTask(const tracked_objects::Location& posted_from, |
michael@0 | 27 | const Closure& task, |
michael@0 | 28 | TimeTicks delayed_run_time, |
michael@0 | 29 | bool nestable); |
michael@0 | 30 | ~PendingTask(); |
michael@0 | 31 | |
michael@0 | 32 | // Used to support sorting. |
michael@0 | 33 | bool operator<(const PendingTask& other) const; |
michael@0 | 34 | |
michael@0 | 35 | // The task to run. |
michael@0 | 36 | Closure task; |
michael@0 | 37 | |
michael@0 | 38 | // The site this PendingTask was posted from. |
michael@0 | 39 | tracked_objects::Location posted_from; |
michael@0 | 40 | |
michael@0 | 41 | // Secondary sort key for run time. |
michael@0 | 42 | int sequence_num; |
michael@0 | 43 | |
michael@0 | 44 | // OK to dispatch from a nested loop. |
michael@0 | 45 | bool nestable; |
michael@0 | 46 | }; |
michael@0 | 47 | |
michael@0 | 48 | // Wrapper around std::queue specialized for PendingTask which adds a Swap |
michael@0 | 49 | // helper method. |
michael@0 | 50 | class BASE_EXPORT TaskQueue : public std::queue<PendingTask> { |
michael@0 | 51 | public: |
michael@0 | 52 | void Swap(TaskQueue* queue); |
michael@0 | 53 | }; |
michael@0 | 54 | |
michael@0 | 55 | // PendingTasks are sorted by their |delayed_run_time| property. |
michael@0 | 56 | typedef std::priority_queue<base::PendingTask> DelayedTaskQueue; |
michael@0 | 57 | |
michael@0 | 58 | } // namespace base |
michael@0 | 59 | |
michael@0 | 60 | #endif // PENDING_TASK_H_ |