• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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
3 // found in the LICENSE file.
4 
5 #ifndef BASE_FILES_DIR_READER_POSIX_H_
6 #define BASE_FILES_DIR_READER_POSIX_H_
7 
8 #include "build/build_config.h"
9 
10 // This header provides a class, DirReaderPosix, which allows one to open and
11 // read from directories without allocating memory. For the interface, see
12 // the generic fallback in dir_reader_fallback.h.
13 
14 // Mac note: OS X has getdirentries, but it only works if we restrict Chrome to
15 // 32-bit inodes. There is a getdirentries64 syscall in 10.6, but it's not
16 // wrapped and the direct syscall interface is unstable. Using an unstable API
17 // seems worse than falling back to enumerating all file descriptors so we will
18 // probably never implement this on the Mac.
19 
20 #if defined(OS_LINUX) || defined(OS_ANDROID)
21 #include "base/files/dir_reader_linux.h"
22 #else
23 #include "base/files/dir_reader_fallback.h"
24 #endif
25 
26 namespace base {
27 
28 #if defined(OS_LINUX) || defined(OS_ANDROID)
29 typedef DirReaderLinux DirReaderPosix;
30 #else
31 typedef DirReaderFallback DirReaderPosix;
32 #endif
33 
34 }  // namespace base
35 
36 #endif  // BASE_FILES_DIR_READER_POSIX_H_
37