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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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_LOCAL_FILE_STREAM_WRITER_H_ | 5 #ifndef WEBKIT_BROWSER_FILEAPI_LOCAL_FILE_STREAM_WRITER_H_ |
| 6 #define WEBKIT_BROWSER_FILEAPI_LOCAL_FILE_STREAM_WRITER_H_ | 6 #define WEBKIT_BROWSER_FILEAPI_LOCAL_FILE_STREAM_WRITER_H_ |
| 7 | 7 |
| 8 #include <utility> | 8 #include <utility> |
| 9 | 9 |
| 10 #include "base/callback.h" | 10 #include "base/callback.h" |
| 11 #include "base/compiler_specific.h" | 11 #include "base/compiler_specific.h" |
| 12 #include "base/files/file_path.h" | 12 #include "base/files/file_path.h" |
| 13 #include "base/gtest_prod_util.h" | 13 #include "base/gtest_prod_util.h" |
| 14 #include "base/memory/scoped_ptr.h" | 14 #include "base/memory/scoped_ptr.h" |
| 15 #include "base/memory/weak_ptr.h" | 15 #include "base/memory/weak_ptr.h" |
| 16 #include "base/task_runner.h" | 16 #include "base/task_runner.h" |
| 17 #include "webkit/browser/fileapi/file_stream_writer.h" | 17 #include "storage/browser/fileapi/file_stream_writer.h" |
| 18 #include "webkit/browser/webkit_storage_browser_export.h" | 18 #include "storage/common/storage_export.h" |
| 19 | 19 |
| 20 namespace content { | 20 namespace content { |
| 21 class LocalFileStreamWriterTest; | 21 class LocalFileStreamWriterTest; |
| 22 } | 22 } |
| 23 | 23 |
| 24 namespace net { | 24 namespace net { |
| 25 class FileStream; | 25 class FileStream; |
| 26 } | 26 } |
| 27 | 27 |
| 28 namespace fileapi { | 28 namespace storage { |
| 29 | 29 |
| 30 // This class is a thin wrapper around net::FileStream for writing local files. | 30 // This class is a thin wrapper around net::FileStream for writing local files. |
| 31 class WEBKIT_STORAGE_BROWSER_EXPORT LocalFileStreamWriter | 31 class STORAGE_EXPORT LocalFileStreamWriter |
| 32 : public NON_EXPORTED_BASE(FileStreamWriter) { | 32 : public NON_EXPORTED_BASE(FileStreamWriter) { |
| 33 public: | 33 public: |
| 34 virtual ~LocalFileStreamWriter(); | 34 virtual ~LocalFileStreamWriter(); |
| 35 | 35 |
| 36 // FileStreamWriter overrides. | 36 // FileStreamWriter overrides. |
| 37 virtual int Write(net::IOBuffer* buf, int buf_len, | 37 virtual int Write(net::IOBuffer* buf, |
| 38 int buf_len, |
| 38 const net::CompletionCallback& callback) OVERRIDE; | 39 const net::CompletionCallback& callback) OVERRIDE; |
| 39 virtual int Cancel(const net::CompletionCallback& callback) OVERRIDE; | 40 virtual int Cancel(const net::CompletionCallback& callback) OVERRIDE; |
| 40 virtual int Flush(const net::CompletionCallback& callback) OVERRIDE; | 41 virtual int Flush(const net::CompletionCallback& callback) OVERRIDE; |
| 41 | 42 |
| 42 private: | 43 private: |
| 43 friend class content::LocalFileStreamWriterTest; | 44 friend class content::LocalFileStreamWriterTest; |
| 44 friend class FileStreamWriter; | 45 friend class FileStreamWriter; |
| 45 LocalFileStreamWriter(base::TaskRunner* task_runner, | 46 LocalFileStreamWriter(base::TaskRunner* task_runner, |
| 46 const base::FilePath& file_path, | 47 const base::FilePath& file_path, |
| 47 int64 initial_offset, | 48 int64 initial_offset, |
| 48 OpenOrCreate open_or_create); | 49 OpenOrCreate open_or_create); |
| 49 | 50 |
| 50 // Opens |file_path_| and if it succeeds, proceeds to InitiateSeek(). | 51 // Opens |file_path_| and if it succeeds, proceeds to InitiateSeek(). |
| 51 // If failed, the error code is returned by calling |error_callback|. | 52 // If failed, the error code is returned by calling |error_callback|. |
| 52 int InitiateOpen(const net::CompletionCallback& error_callback, | 53 int InitiateOpen(const net::CompletionCallback& error_callback, |
| 53 const base::Closure& main_operation); | 54 const base::Closure& main_operation); |
| 54 void DidOpen(const net::CompletionCallback& error_callback, | 55 void DidOpen(const net::CompletionCallback& error_callback, |
| 55 const base::Closure& main_operation, | 56 const base::Closure& main_operation, |
| 56 int result); | 57 int result); |
| 57 | 58 |
| 58 // Seeks to |initial_offset_| and proceeds to |main_operation| if it succeeds. | 59 // Seeks to |initial_offset_| and proceeds to |main_operation| if it succeeds. |
| 59 // If failed, the error code is returned by calling |error_callback|. | 60 // If failed, the error code is returned by calling |error_callback|. |
| 60 void InitiateSeek(const net::CompletionCallback& error_callback, | 61 void InitiateSeek(const net::CompletionCallback& error_callback, |
| 61 const base::Closure& main_operation); | 62 const base::Closure& main_operation); |
| 62 void DidSeek(const net::CompletionCallback& error_callback, | 63 void DidSeek(const net::CompletionCallback& error_callback, |
| 63 const base::Closure& main_operation, | 64 const base::Closure& main_operation, |
| 64 int64 result); | 65 int64 result); |
| 65 | 66 |
| 66 // Passed as the |main_operation| of InitiateOpen() function. | 67 // Passed as the |main_operation| of InitiateOpen() function. |
| 67 void ReadyToWrite(net::IOBuffer* buf, int buf_len, | 68 void ReadyToWrite(net::IOBuffer* buf, |
| 69 int buf_len, |
| 68 const net::CompletionCallback& callback); | 70 const net::CompletionCallback& callback); |
| 69 | 71 |
| 70 // Writes asynchronously to the file. | 72 // Writes asynchronously to the file. |
| 71 int InitiateWrite(net::IOBuffer* buf, int buf_len, | 73 int InitiateWrite(net::IOBuffer* buf, |
| 74 int buf_len, |
| 72 const net::CompletionCallback& callback); | 75 const net::CompletionCallback& callback); |
| 73 void DidWrite(const net::CompletionCallback& callback, int result); | 76 void DidWrite(const net::CompletionCallback& callback, int result); |
| 74 | 77 |
| 75 // Flushes asynchronously to the file. | 78 // Flushes asynchronously to the file. |
| 76 int InitiateFlush(const net::CompletionCallback& callback); | 79 int InitiateFlush(const net::CompletionCallback& callback); |
| 77 void DidFlush(const net::CompletionCallback& callback, int result); | 80 void DidFlush(const net::CompletionCallback& callback, int result); |
| 78 | 81 |
| 79 // Stops the in-flight operation and calls |cancel_callback_| if it has been | 82 // Stops the in-flight operation and calls |cancel_callback_| if it has been |
| 80 // set by Cancel() for the current operation. | 83 // set by Cancel() for the current operation. |
| 81 bool CancelIfRequested(); | 84 bool CancelIfRequested(); |
| 82 | 85 |
| 83 // Initialization parameters. | 86 // Initialization parameters. |
| 84 const base::FilePath file_path_; | 87 const base::FilePath file_path_; |
| 85 OpenOrCreate open_or_create_; | 88 OpenOrCreate open_or_create_; |
| 86 const int64 initial_offset_; | 89 const int64 initial_offset_; |
| 87 scoped_refptr<base::TaskRunner> task_runner_; | 90 scoped_refptr<base::TaskRunner> task_runner_; |
| 88 | 91 |
| 89 // Current states of the operation. | 92 // Current states of the operation. |
| 90 bool has_pending_operation_; | 93 bool has_pending_operation_; |
| 91 scoped_ptr<net::FileStream> stream_impl_; | 94 scoped_ptr<net::FileStream> stream_impl_; |
| 92 net::CompletionCallback cancel_callback_; | 95 net::CompletionCallback cancel_callback_; |
| 93 | 96 |
| 94 base::WeakPtrFactory<LocalFileStreamWriter> weak_factory_; | 97 base::WeakPtrFactory<LocalFileStreamWriter> weak_factory_; |
| 95 DISALLOW_COPY_AND_ASSIGN(LocalFileStreamWriter); | 98 DISALLOW_COPY_AND_ASSIGN(LocalFileStreamWriter); |
| 96 }; | 99 }; |
| 97 | 100 |
| 98 } // namespace fileapi | 101 } // namespace storage |
| 99 | 102 |
| 100 #endif // WEBKIT_BROWSER_FILEAPI_LOCAL_FILE_STREAM_WRITER_H_ | 103 #endif // WEBKIT_BROWSER_FILEAPI_LOCAL_FILE_STREAM_WRITER_H_ |
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