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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_FILEAPI_ASYNC_FILE_UTIL_ADAPTER_H_ | 5 #ifndef WEBKIT_BROWSER_FILEAPI_ASYNC_FILE_UTIL_ADAPTER_H_ |
| 6 #define WEBKIT_BROWSER_FILEAPI_ASYNC_FILE_UTIL_ADAPTER_H_ | 6 #define WEBKIT_BROWSER_FILEAPI_ASYNC_FILE_UTIL_ADAPTER_H_ |
| 7 | 7 |
| 8 #include "base/memory/scoped_ptr.h" | 8 #include "base/memory/scoped_ptr.h" |
| 9 #include "webkit/browser/fileapi/async_file_util.h" | 9 #include "webkit/browser/fileapi/async_file_util.h" |
| 10 | 10 |
| 11 namespace storage { | 11 namespace storage { |
| 12 | 12 |
| 13 class FileSystemFileUtil; | 13 class FileSystemFileUtil; |
| 14 | 14 |
| 15 // An adapter class for FileSystemFileUtil classes to provide asynchronous | 15 // An adapter class for FileSystemFileUtil classes to provide asynchronous |
| 16 // interface. | 16 // interface. |
| 17 // | 17 // |
| 18 // A filesystem can do either: | 18 // A filesystem can do either: |
| 19 // - implement a synchronous version of FileUtil by extending | 19 // - implement a synchronous version of FileUtil by extending |
| 20 // FileSystemFileUtil and atach it to this adapter, or | 20 // FileSystemFileUtil and atach it to this adapter, or |
| 21 // - directly implement AsyncFileUtil. | 21 // - directly implement AsyncFileUtil. |
| 22 // | 22 // |
| 23 // This instance (as thus this->sync_file_util_) is guaranteed to be alive | 23 // This instance (as thus this->sync_file_util_) is guaranteed to be alive |
| 24 // as far as FileSystemOperationContext given to each operation is kept alive. | 24 // as far as FileSystemOperationContext given to each operation is kept alive. |
| 25 class WEBKIT_STORAGE_BROWSER_EXPORT AsyncFileUtilAdapter | 25 class STORAGE_EXPORT AsyncFileUtilAdapter |
| 26 : public NON_EXPORTED_BASE(AsyncFileUtil) { | 26 : public NON_EXPORTED_BASE(AsyncFileUtil) { |
| 27 public: | 27 public: |
| 28 // Creates a new AsyncFileUtil for |sync_file_util|. This takes the | 28 // Creates a new AsyncFileUtil for |sync_file_util|. This takes the |
| 29 // ownership of |sync_file_util|. (This doesn't take scoped_ptr<> just | 29 // ownership of |sync_file_util|. (This doesn't take scoped_ptr<> just |
| 30 // to save extra make_scoped_ptr; in all use cases a new fresh FileUtil is | 30 // to save extra make_scoped_ptr; in all use cases a new fresh FileUtil is |
| 31 // created only for this adapter.) | 31 // created only for this adapter.) |
| 32 explicit AsyncFileUtilAdapter(FileSystemFileUtil* sync_file_util); | 32 explicit AsyncFileUtilAdapter(FileSystemFileUtil* sync_file_util); |
| 33 | 33 |
| 34 virtual ~AsyncFileUtilAdapter(); | 34 virtual ~AsyncFileUtilAdapter(); |
| 35 | 35 |
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| 109 | 109 |
| 110 private: | 110 private: |
| 111 scoped_ptr<FileSystemFileUtil> sync_file_util_; | 111 scoped_ptr<FileSystemFileUtil> sync_file_util_; |
| 112 | 112 |
| 113 DISALLOW_COPY_AND_ASSIGN(AsyncFileUtilAdapter); | 113 DISALLOW_COPY_AND_ASSIGN(AsyncFileUtilAdapter); |
| 114 }; | 114 }; |
| 115 | 115 |
| 116 } // namespace storage | 116 } // namespace storage |
| 117 | 117 |
| 118 #endif // WEBKIT_BROWSER_FILEAPI_ASYNC_FILE_UTIL_ADAPTER_H_ | 118 #endif // WEBKIT_BROWSER_FILEAPI_ASYNC_FILE_UTIL_ADAPTER_H_ |
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