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Side by Side Diff: storage/browser/blob/blob_data_handle.h

Issue 442383002: Move storage-related files from webkit/ to new top-level directory storage/ (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: . Created 6 years, 4 months ago
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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2013 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 WEBKIT_BROWSER_BLOB_BLOB_DATA_HANDLE_H_ 5 #ifndef WEBKIT_BROWSER_BLOB_BLOB_DATA_HANDLE_H_
6 #define WEBKIT_BROWSER_BLOB_BLOB_DATA_HANDLE_H_ 6 #define WEBKIT_BROWSER_BLOB_BLOB_DATA_HANDLE_H_
7 7
8 #include <string> 8 #include <string>
9 9
10 #include "base/memory/ref_counted.h" 10 #include "base/memory/ref_counted.h"
11 #include "base/memory/weak_ptr.h" 11 #include "base/memory/weak_ptr.h"
12 #include "base/supports_user_data.h" 12 #include "base/supports_user_data.h"
13 #include "webkit/browser/webkit_storage_browser_export.h" 13 #include "storage/common/storage_export.h"
14 14
15 namespace base { 15 namespace base {
16 class SequencedTaskRunner; 16 class SequencedTaskRunner;
17 } 17 }
18 18
19 namespace webkit_blob { 19 namespace storage {
20 20
21 class BlobData; 21 class BlobData;
22 class BlobStorageContext; 22 class BlobStorageContext;
23 23
24 // A scoper object for use in chrome's main browser process, ensures 24 // A scoper object for use in chrome's main browser process, ensures
25 // the underlying BlobData and its uuid remain in BlobStorageContext's 25 // the underlying BlobData and its uuid remain in BlobStorageContext's
26 // collection for the duration. This object has delete semantics and 26 // collection for the duration. This object has delete semantics and
27 // maybe deleted on any thread. 27 // maybe deleted on any thread.
28 class WEBKIT_STORAGE_BROWSER_EXPORT BlobDataHandle 28 class STORAGE_EXPORT BlobDataHandle : public base::SupportsUserData::Data {
29 : public base::SupportsUserData::Data {
30 public: 29 public:
31 BlobDataHandle(const BlobDataHandle& other); // May be copied on any thread. 30 BlobDataHandle(const BlobDataHandle& other); // May be copied on any thread.
32 virtual ~BlobDataHandle(); // Maybe be deleted on any thread. 31 virtual ~BlobDataHandle(); // Maybe be deleted on any thread.
33 BlobData* data() const; // May only be accessed on the IO thread. 32 BlobData* data() const; // May only be accessed on the IO thread.
34 33
35 std::string uuid() const; // May be accessed on any thread. 34 std::string uuid() const; // May be accessed on any thread.
36 35
37 private: 36 private:
38 class BlobDataHandleShared 37 class BlobDataHandleShared
39 : public base::RefCountedThreadSafe<BlobDataHandleShared> { 38 : public base::RefCountedThreadSafe<BlobDataHandleShared> {
40 public: 39 public:
41 BlobDataHandleShared(BlobData* blob_data, 40 BlobDataHandleShared(BlobData* blob_data,
42 BlobStorageContext* context, 41 BlobStorageContext* context,
43 base::SequencedTaskRunner* task_runner); 42 base::SequencedTaskRunner* task_runner);
44 43
45 BlobData* data() const; 44 BlobData* data() const;
46 const std::string& uuid() const; 45 const std::string& uuid() const;
47 46
48 private: 47 private:
49 friend class base::DeleteHelper<BlobDataHandleShared>; 48 friend class base::DeleteHelper<BlobDataHandleShared>;
50 friend class base::RefCountedThreadSafe<BlobDataHandleShared>; 49 friend class base::RefCountedThreadSafe<BlobDataHandleShared>;
51 friend class BlobDataHandle; 50 friend class BlobDataHandle;
52 51
53 virtual ~BlobDataHandleShared(); 52 virtual ~BlobDataHandleShared();
54 53
55 scoped_refptr<BlobData> blob_data_; 54 scoped_refptr<BlobData> blob_data_;
56 base::WeakPtr<BlobStorageContext> context_; 55 base::WeakPtr<BlobStorageContext> context_;
57 56
58 DISALLOW_COPY_AND_ASSIGN(BlobDataHandleShared); 57 DISALLOW_COPY_AND_ASSIGN(BlobDataHandleShared);
59 }; 58 };
60 59
61 friend class BlobStorageContext; 60 friend class BlobStorageContext;
62 BlobDataHandle(BlobData* blob_data, BlobStorageContext* context, 61 BlobDataHandle(BlobData* blob_data,
62 BlobStorageContext* context,
63 base::SequencedTaskRunner* task_runner); 63 base::SequencedTaskRunner* task_runner);
64 64
65 scoped_refptr<base::SequencedTaskRunner> io_task_runner_; 65 scoped_refptr<base::SequencedTaskRunner> io_task_runner_;
66 scoped_refptr<BlobDataHandleShared> shared_; 66 scoped_refptr<BlobDataHandleShared> shared_;
67 }; 67 };
68 68
69 } // namespace webkit_blob 69 } // namespace storage
70 70
71 #endif // WEBKIT_BROWSER_BLOB_BLOB_DATA_HANDLE_H_ 71 #endif // WEBKIT_BROWSER_BLOB_BLOB_DATA_HANDLE_H_
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