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comparison: ipc/chromium/src/base/dir_reader_posix.h
ipc/chromium/src/base/dir_reader_posix.h
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| 1 // Copyright (c) 2010 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_DIR_READER_POSIX_H_ | |
| 6 #define BASE_DIR_READER_POSIX_H_ | |
| 7 #pragma once | |
| 8 | |
| 9 #include "build/build_config.h" | |
| 10 | |
| 11 // This header provides a class, DirReaderPosix, which allows one to open and | |
| 12 // read from directories without allocating memory. For the interface, see | |
| 13 // the generic fallback in dir_reader_fallback.h. | |
| 14 | |
| 15 // Mac note: OS X has getdirentries, but it only works if we restrict Chrome to | |
| 16 // 32-bit inodes. There is a getdirentries64 syscall in 10.6, but it's not | |
| 17 // wrapped and the direct syscall interface is unstable. Using an unstable API | |
| 18 // seems worse than falling back to enumerating all file descriptors so we will | |
| 19 // probably never implement this on the Mac. | |
| 20 | |
| 21 #if defined(OS_LINUX) | |
| 22 #include "base/dir_reader_linux.h" | |
| 23 #elif defined(OS_BSD) && !defined(__GLIBC__) | |
| 24 #include "base/dir_reader_bsd.h" | |
| 25 #else | |
| 26 #include "base/dir_reader_fallback.h" | |
| 27 #endif | |
| 28 | |
| 29 namespace base { | |
| 30 | |
| 31 #if defined(OS_LINUX) | |
| 32 typedef DirReaderLinux DirReaderPosix; | |
| 33 #elif defined(OS_BSD) && !defined(__GLIBC__) | |
| 34 typedef DirReaderBSD DirReaderPosix; | |
| 35 #else | |
| 36 typedef DirReaderFallback DirReaderPosix; | |
| 37 #endif | |
| 38 | |
| 39 } // namespace base | |
| 40 | |
| 41 #endif // BASE_DIR_READER_POSIX_H_ |
