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Side by Side Diff: base/pending_task.h

Issue 8549017: Attempt to fix Windows shared builder following r110206/r110595 (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 9 years, 1 month ago
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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 PENDING_TASK_H_ 5 #ifndef PENDING_TASK_H_
6 #define PENDING_TASK_H_ 6 #define PENDING_TASK_H_
7 #pragma once 7 #pragma once
8 8
9 #include <queue> 9 #include <queue>
10 10
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.h" 14 #include "base/time.h"
14 #include "base/tracking_info.h" 15 #include "base/tracking_info.h"
15 16
16 namespace base { 17 namespace base {
17 18
18 // Contains data about a pending task. Stored in TaskQueue and DelayedTaskQueue 19 // Contains data about a pending task. Stored in TaskQueue and DelayedTaskQueue
19 // for use by classes that queue and execute tasks. 20 // for use by classes that queue and execute tasks.
20 struct PendingTask : public TrackingInfo { 21 struct BASE_EXPORT PendingTask : public TrackingInfo {
21 PendingTask(const tracked_objects::Location& posted_from, 22 PendingTask(const tracked_objects::Location& posted_from,
22 const Closure& task); 23 const Closure& task);
23 PendingTask(const tracked_objects::Location& posted_from, 24 PendingTask(const tracked_objects::Location& posted_from,
24 const Closure& task, 25 const Closure& task,
25 TimeTicks delayed_run_time, 26 TimeTicks delayed_run_time,
26 bool nestable); 27 bool nestable);
27 ~PendingTask(); 28 ~PendingTask();
28 29
29 // Used to support sorting. 30 // Used to support sorting.
30 bool operator<(const PendingTask& other) const; 31 bool operator<(const PendingTask& other) const;
31 32
32 // The task to run. 33 // The task to run.
33 Closure task; 34 Closure task;
34 35
35 // The site this PendingTask was posted from. 36 // The site this PendingTask was posted from.
36 tracked_objects::Location posted_from; 37 tracked_objects::Location posted_from;
37 38
38 // Secondary sort key for run time. 39 // Secondary sort key for run time.
39 int sequence_num; 40 int sequence_num;
40 41
41 // OK to dispatch from a nested loop. 42 // OK to dispatch from a nested loop.
42 bool nestable; 43 bool nestable;
43 }; 44 };
44 45
45 // Wrapper around std::queue specialized for PendingTask which adds a Swap 46 // Wrapper around std::queue specialized for PendingTask which adds a Swap
46 // helper method. 47 // helper method.
47 class TaskQueue : public std::queue<PendingTask> { 48 class BASE_EXPORT TaskQueue : public std::queue<PendingTask> {
48 public: 49 public:
49 void Swap(TaskQueue* queue); 50 void Swap(TaskQueue* queue);
50 }; 51 };
51 52
52 // PendingTasks are sorted by their |delayed_run_time| property. 53 // PendingTasks are sorted by their |delayed_run_time| property.
53 typedef std::priority_queue<base::PendingTask> DelayedTaskQueue; 54 typedef std::priority_queue<base::PendingTask> DelayedTaskQueue;
54 55
55 } // namespace base 56 } // namespace base
56 57
57 #endif // PENDING_TASK_H_ 58 #endif // PENDING_TASK_H_
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