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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_DIR_READER_POSIX_H_
#define BASE_DIR_READER_POSIX_H_
#pragma once
// 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 defined(XP_LINUX)
# include "base/dir_reader_linux.h"
#elif (defined(__DragonFly__) || defined(XP_FREEBSD) || defined(XP_NETBSD) || \
defined(XP_OPENBSD)) && \
!defined(__GLIBC__)
# include "base/dir_reader_bsd.h"
#else
# include "base/dir_reader_fallback.h"
#endif
namespace base {
#if defined(XP_LINUX)
typedef DirReaderLinux DirReaderPosix;
#elif (defined(__DragonFly__) || defined(XP_FREEBSD) || defined(XP_NETBSD) || \
defined(XP_OPENBSD)) && \
!defined(__GLIBC__)
typedef DirReaderBSD DirReaderPosix;
#else
typedef DirReaderFallback DirReaderPosix;
#endif
} // namespace base
#endif // BASE_DIR_READER_POSIX_H_
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