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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/storage/webkit_storage_export.h" | 13 #include "webkit/browser/webkit_storage_browser_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 webkit_blob { |
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_EXPORT BlobDataHandle | 28 class WEBKIT_STORAGE_BROWSER_EXPORT BlobDataHandle |
29 : public base::SupportsUserData::Data { | 29 : public base::SupportsUserData::Data { |
30 public: | 30 public: |
31 virtual ~BlobDataHandle(); // Maybe be deleted on any thread. | 31 virtual ~BlobDataHandle(); // Maybe be deleted on any thread. |
32 BlobData* data() const; // May only be accessed on the IO thread. | 32 BlobData* data() const; // May only be accessed on the IO thread. |
33 | 33 |
34 private: | 34 private: |
35 friend class BlobStorageContext; | 35 friend class BlobStorageContext; |
36 BlobDataHandle(BlobData* blob_data, BlobStorageContext* context, | 36 BlobDataHandle(BlobData* blob_data, BlobStorageContext* context, |
37 base::SequencedTaskRunner* task_runner); | 37 base::SequencedTaskRunner* task_runner); |
38 | 38 |
39 static void DeleteHelper( | 39 static void DeleteHelper( |
40 base::WeakPtr<BlobStorageContext> context, | 40 base::WeakPtr<BlobStorageContext> context, |
41 BlobData* blob_data); | 41 BlobData* blob_data); |
42 | 42 |
43 BlobData* blob_data_; // Intentionally a raw ptr to a non-thread-safe ref. | 43 BlobData* blob_data_; // Intentionally a raw ptr to a non-thread-safe ref. |
44 base::WeakPtr<BlobStorageContext> context_; | 44 base::WeakPtr<BlobStorageContext> context_; |
45 scoped_refptr<base::SequencedTaskRunner> io_task_runner_; | 45 scoped_refptr<base::SequencedTaskRunner> io_task_runner_; |
46 }; | 46 }; |
47 | 47 |
48 } // namespace webkit_blob | 48 } // namespace webkit_blob |
49 | 49 |
50 #endif // WEBKIT_BROWSER_BLOB_BLOB_DATA_HANDLE_H_ | 50 #endif // WEBKIT_BROWSER_BLOB_BLOB_DATA_HANDLE_H_ |
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