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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_FILES_DIR_READER_POSIX_H_
#define BASE_FILES_DIR_READER_POSIX_H_
#include "build/build_config.h"
// This header provides a class, DirReaderPosix, which allows one to open and
// read from directories without allocating memory. For the interface, see
// the generic fallback in dir_reader_fallback.h.
// Mac note: OS X has getdirentries, but it only works if we restrict Chrome to
// 32-bit inodes. There is a getdirentries64 syscall in 10.6, but it's not
// wrapped and the direct syscall interface is unstable. Using an unstable API
// seems worse than falling back to enumerating all file descriptors so we will
// probably never implement this on the Mac.
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
#include "base/files/dir_reader_linux.h"
#else
#include "base/files/dir_reader_fallback.h"
#endif
namespace base {
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
typedef DirReaderLinux DirReaderPosix;
#else
typedef DirReaderFallback DirReaderPosix;
#endif
} // namespace base
#endif // BASE_FILES_DIR_READER_POSIX_H_
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