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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 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_QUOTA_OPEN_FILE_HANDLE_H_ | 5 #ifndef WEBKIT_BROWSER_FILEAPI_QUOTA_OPEN_FILE_HANDLE_H_ |
6 #define WEBKIT_BROWSER_FILEAPI_QUOTA_OPEN_FILE_HANDLE_H_ | 6 #define WEBKIT_BROWSER_FILEAPI_QUOTA_OPEN_FILE_HANDLE_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 "base/memory/weak_ptr.h" | 10 #include "base/memory/weak_ptr.h" |
11 #include "webkit/browser/webkit_storage_browser_export.h" | 11 #include "webkit/browser/storage_export.h" |
12 | 12 |
13 namespace base { | 13 namespace base { |
14 class FilePath; | 14 class FilePath; |
15 } | 15 } |
16 | 16 |
17 namespace storage { | 17 namespace storage { |
18 | 18 |
19 class QuotaReservation; | 19 class QuotaReservation; |
20 class OpenFileHandleContext; | 20 class OpenFileHandleContext; |
21 class QuotaReservationBuffer; | 21 class QuotaReservationBuffer; |
22 | 22 |
23 // Represents an open file like a file descriptor. | 23 // Represents an open file like a file descriptor. |
24 // This should be alive while a consumer keeps a file opened and should be | 24 // This should be alive while a consumer keeps a file opened and should be |
25 // deleted when the plugin closes the file. | 25 // deleted when the plugin closes the file. |
26 class WEBKIT_STORAGE_BROWSER_EXPORT OpenFileHandle { | 26 class STORAGE_EXPORT OpenFileHandle { |
27 public: | 27 public: |
28 ~OpenFileHandle(); | 28 ~OpenFileHandle(); |
29 | 29 |
30 // Updates cached file size and consumes quota for that. | 30 // Updates cached file size and consumes quota for that. |
31 // Both this and AddAppendModeWriteAmount should be called for each modified | 31 // Both this and AddAppendModeWriteAmount should be called for each modified |
32 // file before calling QuotaReservation::RefreshQuota and before closing the | 32 // file before calling QuotaReservation::RefreshQuota and before closing the |
33 // file. | 33 // file. |
34 void UpdateMaxWrittenOffset(int64 offset); | 34 void UpdateMaxWrittenOffset(int64 offset); |
35 | 35 |
36 // Notifies that |amount| of data is written to the file in append mode, and | 36 // Notifies that |amount| of data is written to the file in append mode, and |
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61 scoped_refptr<OpenFileHandleContext> context_; | 61 scoped_refptr<OpenFileHandleContext> context_; |
62 | 62 |
63 base::SequenceChecker sequence_checker_; | 63 base::SequenceChecker sequence_checker_; |
64 | 64 |
65 DISALLOW_COPY_AND_ASSIGN(OpenFileHandle); | 65 DISALLOW_COPY_AND_ASSIGN(OpenFileHandle); |
66 }; | 66 }; |
67 | 67 |
68 } // namespace storage | 68 } // namespace storage |
69 | 69 |
70 #endif // WEBKIT_BROWSER_FILEAPI_QUOTA_OPEN_FILE_HANDLE_H_ | 70 #endif // WEBKIT_BROWSER_FILEAPI_QUOTA_OPEN_FILE_HANDLE_H_ |
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