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1 // Copyright (c) 2006-2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2009 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 BASE_FILE_DESCRIPTOR_POSIX_H_ | 5 #ifndef BASE_FILE_DESCRIPTOR_POSIX_H_ |
6 #define BASE_FILE_DESCRIPTOR_POSIX_H_ | 6 #define BASE_FILE_DESCRIPTOR_POSIX_H_ |
7 | 7 |
8 #include "base/files/file.h" | 8 #include "base/files/file.h" |
| 9 #include "base/files/scoped_file.h" |
9 | 10 |
10 namespace base { | 11 namespace base { |
11 | 12 |
12 // ----------------------------------------------------------------------------- | 13 // ----------------------------------------------------------------------------- |
13 // We introduct a special structure for file descriptors in order that we are | 14 // We introduct a special structure for file descriptors in order that we are |
14 // able to use template specialisation to special-case their handling. | 15 // able to use template specialisation to special-case their handling. |
15 // | 16 // |
16 // WARNING: (Chromium only) There are subtleties to consider if serialising | 17 // WARNING: (Chromium only) There are subtleties to consider if serialising |
17 // these objects over IPC. See comments in ipc/ipc_message_utils.h | 18 // these objects over IPC. See comments in ipc/ipc_message_utils.h |
18 // above the template specialisation for this structure. | 19 // above the template specialisation for this structure. |
19 // ----------------------------------------------------------------------------- | 20 // ----------------------------------------------------------------------------- |
20 struct FileDescriptor { | 21 struct FileDescriptor { |
21 FileDescriptor() : fd(-1), auto_close(false) {} | 22 FileDescriptor() : fd(-1), auto_close(false) {} |
22 | 23 |
23 FileDescriptor(int ifd, bool iauto_close) : fd(ifd), auto_close(iauto_close) { | 24 FileDescriptor(int ifd, bool iauto_close) : fd(ifd), auto_close(iauto_close) { |
24 } | 25 } |
25 | 26 |
26 FileDescriptor(File file) : fd(file.TakePlatformFile()), auto_close(true) {} | 27 FileDescriptor(File file) : fd(file.TakePlatformFile()), auto_close(true) {} |
| 28 explicit FileDescriptor(ScopedFD fd) : fd(fd.release()), auto_close(true) {} |
27 | 29 |
28 bool operator==(const FileDescriptor& other) const { | 30 bool operator==(const FileDescriptor& other) const { |
29 return (fd == other.fd && auto_close == other.auto_close); | 31 return (fd == other.fd && auto_close == other.auto_close); |
30 } | 32 } |
31 | 33 |
32 bool operator!=(const FileDescriptor& other) const { | 34 bool operator!=(const FileDescriptor& other) const { |
33 return !operator==(other); | 35 return !operator==(other); |
34 } | 36 } |
35 | 37 |
36 // A comparison operator so that we can use these as keys in a std::map. | 38 // A comparison operator so that we can use these as keys in a std::map. |
37 bool operator<(const FileDescriptor& other) const { | 39 bool operator<(const FileDescriptor& other) const { |
38 return other.fd < fd; | 40 return other.fd < fd; |
39 } | 41 } |
40 | 42 |
41 int fd; | 43 int fd; |
42 // If true, this file descriptor should be closed after it has been used. For | 44 // If true, this file descriptor should be closed after it has been used. For |
43 // example an IPC system might interpret this flag as indicating that the | 45 // example an IPC system might interpret this flag as indicating that the |
44 // file descriptor it has been given should be closed after use. | 46 // file descriptor it has been given should be closed after use. |
45 bool auto_close; | 47 bool auto_close; |
46 }; | 48 }; |
47 | 49 |
48 } // namespace base | 50 } // namespace base |
49 | 51 |
50 #endif // BASE_FILE_DESCRIPTOR_POSIX_H_ | 52 #endif // BASE_FILE_DESCRIPTOR_POSIX_H_ |
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