agl@chromium.org | 42bbb99 | 2009-02-12 03:59:20 +0900 | [diff] [blame] | 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 |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef BASE_FILE_DESCRIPTOR_POSIX_H_ |
| 6 | #define BASE_FILE_DESCRIPTOR_POSIX_H_ |
| 7 | |
| 8 | namespace base { |
| 9 | |
| 10 | // ----------------------------------------------------------------------------- |
| 11 | // We introduct a special structure for file descriptors in order that we are |
| 12 | // able to use template specialisation to special-case their handling. |
agl@chromium.org | b208b52 | 2009-03-06 06:40:11 +0900 | [diff] [blame] | 13 | // |
| 14 | // WARNING: (Chromium only) There are subtleties to consider if serialising |
agl@chromium.org | 1c6dcf2 | 2009-07-23 08:57:21 +0900 | [diff] [blame] | 15 | // these objects over IPC. See comments in ipc/ipc_message_utils.h |
agl@chromium.org | 9f96682 | 2009-04-03 11:29:45 +0900 | [diff] [blame] | 16 | // above the template specialisation for this structure. |
agl@chromium.org | 42bbb99 | 2009-02-12 03:59:20 +0900 | [diff] [blame] | 17 | // ----------------------------------------------------------------------------- |
| 18 | struct FileDescriptor { |
| 19 | FileDescriptor() |
| 20 | : fd(-1), |
| 21 | auto_close(false) { } |
| 22 | |
| 23 | FileDescriptor(int ifd, bool iauto_close) |
| 24 | : fd(ifd), |
| 25 | auto_close(iauto_close) { } |
| 26 | |
gspencer@chromium.org | a3d12be | 2010-04-29 02:26:49 +0900 | [diff] [blame^] | 27 | bool operator==(const FileDescriptor& other) const { |
| 28 | return (fd == other.fd && auto_close == other.auto_close); |
| 29 | } |
| 30 | |
| 31 | // A comparison operator so that we can use these as keys in a std::map. |
| 32 | bool operator<(const FileDescriptor& other) const { |
| 33 | return other.fd < fd; |
| 34 | } |
| 35 | |
agl@chromium.org | 42bbb99 | 2009-02-12 03:59:20 +0900 | [diff] [blame] | 36 | int fd; |
| 37 | // If true, this file descriptor should be closed after it has been used. For |
| 38 | // example an IPC system might interpret this flag as indicating that the |
| 39 | // file descriptor it has been given should be closed after use. |
| 40 | bool auto_close; |
| 41 | }; |
| 42 | |
| 43 | } // namespace base |
| 44 | |
| 45 | #endif // BASE_FILE_DESCRIPTOR_POSIX_H_ |