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1 // Copyright 2015 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 STORAGE_BROWSER_BLOB_INTERNAL_BLOB_DATA_H_ | |
6 #define STORAGE_BROWSER_BLOB_INTERNAL_BLOB_DATA_H_ | |
7 | |
8 #include <stddef.h> | |
9 | |
10 #include <memory> | |
11 #include <string> | |
12 #include <vector> | |
13 | |
14 #include "base/macros.h" | |
15 #include "base/memory/ref_counted.h" | |
16 #include "storage/browser/blob/shareable_blob_data_item.h" | |
17 | |
18 namespace storage { | |
19 class ViewBlobInternalsJob; | |
20 | |
21 // This class represents a blob in the BlobStorageContext. It is constructed | |
22 // using the internal Builder class. | |
23 class InternalBlobData { | |
24 public: | |
25 ~InternalBlobData(); | |
26 | |
27 protected: | |
28 friend class BlobStorageContext; | |
29 friend class BlobStorageRegistry; | |
30 friend class ViewBlobInternalsJob; | |
31 | |
32 // Removes the given blob uuid from the internal ShareableBlobDataItems. | |
33 // This is called when this blob is being destroyed. | |
34 void RemoveBlobFromShareableItems(const std::string& blob_uuid); | |
35 | |
36 const std::vector<scoped_refptr<ShareableBlobDataItem>>& items() const; | |
37 | |
38 // Gets the memory used by this blob that is not shared by other blobs. This | |
39 // also doesn't count duplicate items. | |
40 size_t GetUnsharedMemoryUsage() const; | |
41 | |
42 // Gets the memory used by this blob. Total memory includes memory of items | |
43 // possibly shared with other blobs, or items that appear multiple times in | |
44 // this blob. Unshared memory is memory used by this blob that is not shared | |
45 // by other blobs. | |
46 void GetMemoryUsage(size_t* total_memory, size_t* unshared_memory); | |
47 | |
48 private: | |
49 friend class Builder; | |
50 InternalBlobData(); | |
51 | |
52 std::string content_type_; | |
53 std::string content_disposition_; | |
54 std::vector<scoped_refptr<ShareableBlobDataItem>> items_; | |
55 | |
56 class Builder { | |
57 public: | |
58 Builder(); | |
59 ~Builder(); | |
60 | |
61 void AppendSharedBlobItem(scoped_refptr<ShareableBlobDataItem> item); | |
62 | |
63 // Gets the memory used by this builder that is not shared with other blobs. | |
64 size_t GetNonsharedMemoryUsage() const; | |
65 | |
66 // Removes the given blob uuid from the internal ShareableBlobDataItems. | |
67 // This is called on destruction of the blob if we're still building it. | |
68 void RemoveBlobFromShareableItems(const std::string& blob_uuid); | |
69 | |
70 // The builder is invalid after calling this method. | |
71 std::unique_ptr<::storage::InternalBlobData> Build(); | |
72 | |
73 private: | |
74 std::unique_ptr<::storage::InternalBlobData> data_; | |
75 | |
76 DISALLOW_COPY_AND_ASSIGN(Builder); | |
77 }; | |
78 | |
79 DISALLOW_COPY_AND_ASSIGN(InternalBlobData); | |
80 }; | |
81 | |
82 } // namespace storage | |
83 #endif // STORAGE_BROWSER_BLOB_INTERNAL_BLOB_DATA_H_ | |
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