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1 // Copyright (c) 2015 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2015 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 STORAGE_BROWSER_BLOB_BLOB_DATA_ITEM_H_ | 5 #ifndef STORAGE_BROWSER_BLOB_BLOB_DATA_ITEM_H_ |
6 #define STORAGE_BROWSER_BLOB_BLOB_DATA_ITEM_H_ | 6 #define STORAGE_BROWSER_BLOB_BLOB_DATA_ITEM_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/memory/ref_counted.h" | 9 #include "base/memory/ref_counted.h" |
10 #include "storage/browser/blob/shareable_file_reference.h" | 10 #include "storage/browser/blob/shareable_file_reference.h" |
11 #include "storage/browser/storage_browser_export.h" | 11 #include "storage/browser/storage_browser_export.h" |
12 #include "storage/common/data_element.h" | 12 #include "storage/common/data_element.h" |
13 | 13 |
14 namespace storage { | 14 namespace storage { |
15 class BlobDataBuilder; | 15 class BlobDataBuilder; |
16 class BlobStorageContext; | 16 class BlobStorageContext; |
17 | 17 |
18 // Ref counted blob item. This class owns the backing data of the blob item. | 18 // Ref counted blob item. This class owns the backing data of the blob item. |
19 // The backing data is immutable, and cannot change after creation. | 19 // The backing data is immutable, and cannot change after creation. |
20 // The purpose of this class is to allow the resource to stick around in the | 20 // The purpose of this class is to allow the resource to stick around in the |
21 // snapshot even after the resource was swapped in the blob (either to disk or | 21 // snapshot even after the resource was swapped in the blob (either to disk or |
22 // to memory) by the BlobStorageContext. | 22 // to memory) by the BlobStorageContext. |
23 class STORAGE_EXPORT BlobDataItem : public base::RefCounted<BlobDataItem> { | 23 class STORAGE_EXPORT BlobDataItem : public base::RefCounted<BlobDataItem> { |
24 public: | 24 public: |
25 storage::DataElement::Type type() const { return item_->type(); } | 25 DataElement::Type type() const { return item_->type(); } |
26 const char* bytes() const { return item_->bytes(); } | 26 const char* bytes() const { return item_->bytes(); } |
27 const base::FilePath& path() const { return item_->path(); } | 27 const base::FilePath& path() const { return item_->path(); } |
28 const GURL& filesystem_url() const { return item_->filesystem_url(); } | 28 const GURL& filesystem_url() const { return item_->filesystem_url(); } |
29 const std::string& blob_uuid() const { return item_->blob_uuid(); } | 29 const std::string& blob_uuid() const { return item_->blob_uuid(); } |
30 uint64 offset() const { return item_->offset(); } | 30 size_t offset() const { return item_->offset(); } |
michaeln
2015/02/05 20:02:09
Not sure size_t is the right type for offset & len
dmurph
2015/02/06 01:32:30
Changed back to uint64
| |
31 uint64 length() const { return item_->length(); } | 31 size_t length() const { return item_->length(); } |
32 const base::Time& expected_modification_time() const { | 32 const base::Time& expected_modification_time() const { |
33 return item_->expected_modification_time(); | 33 return item_->expected_modification_time(); |
34 } | 34 } |
35 const DataElement& data_element() const { return *item_; } | 35 const DataElement& data_element() const { return *item_; } |
36 const DataElement* data_element_ptr() const { return item_.get(); } | 36 const DataElement* data_element_ptr() const { return item_.get(); } |
37 | 37 |
38 private: | 38 private: |
39 friend class BlobDataBuilder; | 39 friend class BlobDataBuilder; |
40 friend class BlobStorageContext; | 40 friend class BlobStorageContext; |
41 friend class base::RefCounted<BlobDataItem>; | 41 friend class base::RefCounted<BlobDataItem>; |
42 | |
42 BlobDataItem(scoped_ptr<DataElement> item); | 43 BlobDataItem(scoped_ptr<DataElement> item); |
43 BlobDataItem(scoped_ptr<DataElement> item, | 44 BlobDataItem(scoped_ptr<DataElement> item, |
44 scoped_refptr<ShareableFileReference> file_handle); | 45 scoped_refptr<ShareableFileReference> file_handle); |
45 virtual ~BlobDataItem(); | 46 virtual ~BlobDataItem(); |
46 | 47 |
47 scoped_ptr<storage::DataElement> item_; | 48 scoped_ptr<DataElement> item_; |
48 scoped_refptr<ShareableFileReference> file_handle_; | 49 scoped_refptr<ShareableFileReference> file_handle_; |
49 }; | 50 }; |
50 | 51 |
51 #if defined(UNIT_TEST) | 52 #if defined(UNIT_TEST) |
52 inline bool operator==(const BlobDataItem& a, const BlobDataItem& b) { | 53 inline bool operator==(const BlobDataItem& a, const BlobDataItem& b) { |
53 return a.data_element() == b.data_element(); | 54 return a.data_element() == b.data_element(); |
54 } | 55 } |
55 | 56 |
56 inline bool operator!=(const BlobDataItem& a, const BlobDataItem& b) { | 57 inline bool operator!=(const BlobDataItem& a, const BlobDataItem& b) { |
57 return !(a == b); | 58 return !(a == b); |
58 } | 59 } |
59 #endif // defined(UNIT_TEST) | 60 #endif // defined(UNIT_TEST) |
60 | 61 |
61 } // namespace storage | 62 } // namespace storage |
62 | 63 |
63 #endif // STORAGE_BROWSER_BLOB_BLOB_DATA_ITEM_H_ | 64 #endif // STORAGE_BROWSER_BLOB_BLOB_DATA_ITEM_H_ |
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