dir_reader_posix.h

Enable keyboard shortcuts

/* -*- 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_