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| 1 // Copyright (c) 2010 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 WEBKIT_BLOB_DELETABLE_FILE_REFERENCE_H_ |
| 6 #define WEBKIT_BLOB_DELETABLE_FILE_REFERENCE_H_ |
| 7 #pragma once |
| 8 |
| 9 #include "base/file_path.h" |
| 10 #include "base/ref_counted.h" |
| 11 |
| 12 namespace base { |
| 13 class MessageLoopProxy; |
| 14 } |
| 15 |
| 16 namespace webkit_blob { |
| 17 |
| 18 // A refcounted wrapper around a FilePath that schedules the file |
| 19 // to be deleted upon final release. |
| 20 class DeletableFileReference : public base::RefCounted<DeletableFileReference> { |
| 21 public: |
| 22 // Returns a DeletableFileReference for the given path, if no reference |
| 23 // for this path exists returns NULL. |
| 24 static scoped_refptr<DeletableFileReference> Get(const FilePath& path); |
| 25 |
| 26 // Returns a DeletableFileReference for the given path, creating a new |
| 27 // reference if none yet exists. |
| 28 static scoped_refptr<DeletableFileReference> GetOrCreate( |
| 29 const FilePath& path, base::MessageLoopProxy* file_thread); |
| 30 |
| 31 // The full file path. |
| 32 const FilePath& path() const { return path_; } |
| 33 |
| 34 private: |
| 35 friend class base::RefCounted<DeletableFileReference>; |
| 36 |
| 37 DeletableFileReference( |
| 38 const FilePath& path, base::MessageLoopProxy* file_thread); |
| 39 ~DeletableFileReference(); |
| 40 |
| 41 const FilePath path_; |
| 42 scoped_refptr<base::MessageLoopProxy> file_thread_; |
| 43 |
| 44 DISALLOW_COPY_AND_ASSIGN(DeletableFileReference); |
| 45 }; |
| 46 |
| 47 } // namespace webkit_blob |
| 48 |
| 49 #endif // BASE_DELETABLE_FILE_REFERENCE_H_ |
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