1// Copyright 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#ifndef CC_RESOURCES_RESOURCE_UPDATE_QUEUE_H_
6#define CC_RESOURCES_RESOURCE_UPDATE_QUEUE_H_
7
8#include <deque>
9#include "base/basictypes.h"
10#include "cc/base/cc_export.h"
11#include "cc/resources/resource_update.h"
12
13namespace cc {
14
15class CC_EXPORT ResourceUpdateQueue {
16 public:
17  ResourceUpdateQueue();
18  virtual ~ResourceUpdateQueue();
19
20  void AppendFullUpload(const ResourceUpdate& upload);
21  void AppendPartialUpload(const ResourceUpdate& upload);
22
23  void ClearUploadsToEvictedResources();
24
25  ResourceUpdate TakeFirstFullUpload();
26  ResourceUpdate TakeFirstPartialUpload();
27
28  size_t FullUploadSize() const { return full_entries_.size(); }
29  size_t PartialUploadSize() const { return partial_entries_.size(); }
30
31  bool HasMoreUpdates() const;
32
33 private:
34  void ClearUploadsToEvictedResources(std::deque<ResourceUpdate>* entry_queue);
35  std::deque<ResourceUpdate> full_entries_;
36  std::deque<ResourceUpdate> partial_entries_;
37
38  DISALLOW_COPY_AND_ASSIGN(ResourceUpdateQueue);
39};
40
41}  // namespace cc
42
43#endif  // CC_RESOURCES_RESOURCE_UPDATE_QUEUE_H_
44