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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 // This file defines FileStream::Context class. | 5 // This file defines FileStream::Context class. |
6 // The general design of FileStream is as follows: file_stream.h defines | 6 // The general design of FileStream is as follows: file_stream.h defines |
7 // FileStream class which basically is just an "wrapper" not containing any | 7 // FileStream class which basically is just an "wrapper" not containing any |
8 // specific implementation details. It re-routes all its method calls to | 8 // specific implementation details. It re-routes all its method calls to |
9 // the instance of FileStream::Context (FileStream holds a scoped_ptr to | 9 // the instance of FileStream::Context (FileStream holds a scoped_ptr to |
10 // FileStream::Context instance). Context was extracted into a different class | 10 // FileStream::Context instance). Context was extracted into a different class |
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26 | 26 |
27 #ifndef NET_BASE_FILE_STREAM_CONTEXT_H_ | 27 #ifndef NET_BASE_FILE_STREAM_CONTEXT_H_ |
28 #define NET_BASE_FILE_STREAM_CONTEXT_H_ | 28 #define NET_BASE_FILE_STREAM_CONTEXT_H_ |
29 | 29 |
30 #include <stdint.h> | 30 #include <stdint.h> |
31 | 31 |
32 #include "base/files/file.h" | 32 #include "base/files/file.h" |
33 #include "base/macros.h" | 33 #include "base/macros.h" |
34 #include "base/memory/weak_ptr.h" | 34 #include "base/memory/weak_ptr.h" |
35 #include "base/message_loop/message_loop.h" | 35 #include "base/message_loop/message_loop.h" |
36 #include "base/move.h" | |
37 #include "base/single_thread_task_runner.h" | 36 #include "base/single_thread_task_runner.h" |
38 #include "base/task_runner.h" | 37 #include "base/task_runner.h" |
39 #include "net/base/completion_callback.h" | 38 #include "net/base/completion_callback.h" |
40 #include "net/base/file_stream.h" | 39 #include "net/base/file_stream.h" |
41 | 40 |
42 #if defined(OS_POSIX) | 41 #if defined(OS_POSIX) |
43 #include <errno.h> | 42 #include <errno.h> |
44 #endif | 43 #endif |
45 | 44 |
46 namespace base { | 45 namespace base { |
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106 struct IOResult { | 105 struct IOResult { |
107 IOResult(); | 106 IOResult(); |
108 IOResult(int64_t result, logging::SystemErrorCode os_error); | 107 IOResult(int64_t result, logging::SystemErrorCode os_error); |
109 static IOResult FromOSError(logging::SystemErrorCode os_error); | 108 static IOResult FromOSError(logging::SystemErrorCode os_error); |
110 | 109 |
111 int64_t result; | 110 int64_t result; |
112 logging::SystemErrorCode os_error; // Set only when result < 0. | 111 logging::SystemErrorCode os_error; // Set only when result < 0. |
113 }; | 112 }; |
114 | 113 |
115 struct OpenResult { | 114 struct OpenResult { |
116 MOVE_ONLY_TYPE_FOR_CPP_03(OpenResult) | |
117 public: | 115 public: |
118 OpenResult(); | 116 OpenResult(); |
119 OpenResult(base::File file, IOResult error_code); | 117 OpenResult(base::File file, IOResult error_code); |
120 OpenResult(OpenResult&& other); | 118 OpenResult(OpenResult&& other); |
121 OpenResult& operator=(OpenResult&& other); | 119 OpenResult& operator=(OpenResult&& other); |
122 | 120 |
123 base::File file; | 121 base::File file; |
124 IOResult error_code; | 122 IOResult error_code; |
| 123 |
| 124 private: |
| 125 DISALLOW_COPY_AND_ASSIGN(OpenResult); |
125 }; | 126 }; |
126 | 127 |
127 //////////////////////////////////////////////////////////////////////////// | 128 //////////////////////////////////////////////////////////////////////////// |
128 // Platform-independent methods implemented in file_stream_context.cc. | 129 // Platform-independent methods implemented in file_stream_context.cc. |
129 //////////////////////////////////////////////////////////////////////////// | 130 //////////////////////////////////////////////////////////////////////////// |
130 | 131 |
131 OpenResult OpenFileImpl(const base::FilePath& path, int open_flags); | 132 OpenResult OpenFileImpl(const base::FilePath& path, int open_flags); |
132 | 133 |
133 IOResult CloseFileImpl(); | 134 IOResult CloseFileImpl(); |
134 | 135 |
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236 // Tracks the result of the IO completion operation. Set in OnIOComplete. | 237 // Tracks the result of the IO completion operation. Set in OnIOComplete. |
237 int result_; | 238 int result_; |
238 #endif | 239 #endif |
239 | 240 |
240 DISALLOW_COPY_AND_ASSIGN(Context); | 241 DISALLOW_COPY_AND_ASSIGN(Context); |
241 }; | 242 }; |
242 | 243 |
243 } // namespace net | 244 } // namespace net |
244 | 245 |
245 #endif // NET_BASE_FILE_STREAM_CONTEXT_H_ | 246 #endif // NET_BASE_FILE_STREAM_CONTEXT_H_ |
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