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GitHub Repository: att/ast
 Path: blob/master/src/cmd/3d/dir_3d.h
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/***********************************************************************

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*                                                                      *

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*               This software is part of the ast package               *

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*          Copyright (c) 1989-2011 AT&T Intellectual Property          *

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*                      and is licensed under the                       *

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*                 Eclipse Public License, Version 1.0                  *

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*                    by AT&T Intellectual Property                     *

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*                                                                      *

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*                A copy of the License is available at                 *

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*          http://www.eclipse.org/org/documents/epl-v10.html           *

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*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

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*                                                                      *

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*              Information and Software Systems Research               *

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*                            AT&T Research                             *

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*                           Florham Park NJ                            *

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*                                                                      *

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*                 Glenn Fowler <[email protected]>                  *

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*                  David Korn <[email protected]>                   *

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*                   Eduardo Krell <[email protected]>                   *

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*                                                                      *

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***********************************************************************/

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#pragma prototyped

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/*

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 * AT&T Research

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 *

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 * directory stream access library private definitions

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 * handles 3d file system

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 */

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#ifndef _DIR3D_H

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#define _DIR3D_H

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#include "3d.h"

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#if !_mem_DIR

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#undef	_lib_opendir

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#endif

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#define DIRENT_ILLEGAL_ACCESS	1

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#define DIR			DIRDIR

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#if defined(__STDPP__directive) && defined(__STDPP__hide)

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__STDPP__directive pragma pp:hide opendir _opendir __opendir

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__STDPP__directive pragma pp:hide readdir _readdir __readdir readdir64 _readdir64 __readdir64

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__STDPP__directive pragma pp:hide rewinddir _rewinddir __rewinddir rewinddir64 _rewinddir64 __rewinddir64

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__STDPP__directive pragma pp:hide seekdir _seekdir __seekdir seekdir64 _seekdir64 __seekdir64

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__STDPP__directive pragma pp:hide telldir _telldir __telldir telldir64 _telldir64 __telldir64

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__STDPP__directive pragma pp:hide closedir _closedir __closedir

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__STDPP__directive pragma pp:hide _getdents __getdents getdents64 _getdents64 __getdents64 getdirentries

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#else

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#define opendir		DIRopendir

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#define _opendir	_DIRopendir

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#define __opendir	__DIRopendir

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#define readdir		DIRreaddir

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#define _readdir	_DIRreaddir

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#define __readdir	__DIRreaddir

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#define readdir64	DIRreaddir64

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#define _readdir64	_DIRreaddir64

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#define __readdir64	__DIRreaddir64

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#if _lib_rewinddir

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#define rewinddir	DIRrewinddir

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#define _rewinddir	_DIRrewinddir

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#define __rewinddir	__DIRrewinddir

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#define rewinddir64	DIRrewinddir64

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#define _rewinddir64	_DIRrewinddir64

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#define __rewinddir64	__DIRrewinddir64

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#endif

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#define seekdir		DIRseekdir

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#define _seekdir	_DIRseekdir

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#define __seekdir	__DIRseekdir

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#define seekdir64	DIRseekdir64

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#define _seekdir64	_DIRseekdir64

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#define __seekdir64	__DIRseekdir64

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#if _lib_telldir

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#define telldir		DIRtelldir

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#define _telldir	_DIRtelldir

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#define __telldir	__DIRtelldir

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#define telldir64	DIRtelldir64

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#define _telldir64	_DIRtelldir64

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#define __telldir64	__DIRtelldir64

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#endif

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#define closedir	DIRclosedir

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#define _closedir	_DIRclosedir

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#define __closedir	__DIRclosedir

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#define _getdents	_DIRgetdents

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#define __getdents	__DIRgetdents

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#define getdents64	DIRgetdents64

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#define _getdents64	_DIRgetdents64

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#define __getdents64	__DIRgetdents64

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#define getdirentries	DIRgetdirentries

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#endif

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#define _BLD_ast	1

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#include <ast_dir.h>

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#undef	_BLD_ast

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#if _lib_readdir64 && _typ_struct_dirent64

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#undef	dirent

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#undef	DIRdirent

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#define DIRdirent	dirent

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#endif

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#include <hash.h>

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#if !defined(SYS3D_opendir)

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extern DIR*		OPENDIR(const char*);

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#endif

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#if !defined(SYS3D_readdir)

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extern struct dirent*	READDIR(DIR*);

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#endif

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#if !defined(SYS3D_seekdir)

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extern void		SEEKDIR(DIR*, long);

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#endif

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#if !defined(SYS3D_telldir)

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extern long		TELLDIR(DIR*);

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#endif

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#if !defined(SYS3D_rewinddir)

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extern void		REWINDDIR(DIR*);

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#endif

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#if !defined(SYS3D_closedir)

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extern void		CLOSEDIR(DIR*);

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#endif

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#undef	DIR

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#if defined(__STDPP__directive) && defined(__STDPP__hide)

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__STDPP__directive pragma pp:nohide opendir _opendir __opendir

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__STDPP__directive pragma pp:nohide readdir _readdir __readdir readdir64 _readdir64 __readdir64

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__STDPP__directive pragma pp:nohide rewinddir _rewinddir __rewinddir rewinddir64 _rewinddir64 __rewinddir64

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__STDPP__directive pragma pp:nohide seekdir _seekdir __seekdir seekdir64 _seekdir64 __seekdir64

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__STDPP__directive pragma pp:nohide telldir _telldir __telldir telldir64 _telldir64 __telldir64

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__STDPP__directive pragma pp:nohide closedir _closedir __closedir

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__STDPP__directive pragma pp:nohide _getdents __getdents getdents64 _getdents64 __getdents64 getdirentries

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#else

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#undef	opendir

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#undef	_opendir

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#undef	__opendir

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#undef	readdir

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#undef	_readdir

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#undef	__readdir

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#undef	readdir64

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#undef	_readdir64

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#undef	__readdir64

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#ifndef REWINDDIR

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#if _lib_rewinddir

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#undef	rewinddir

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#undef	_rewinddir

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#undef	__rewinddir

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#undef	rewinddir64

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#undef	_rewinddir64

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#undef	__rewinddir64

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#else

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#define REWINDDIR(p)	rewinddir(p)

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#define REWINDDIR64(p)	rewinddir64(p)

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#endif

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#endif

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#undef	seekdir

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#undef	_seekdir

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#undef	__seekdir

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#undef	seekdir64

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#undef	_seekdir64

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#undef	__seekdir64

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#ifndef TELLDIR

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#if _lib_telldir

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#undef	telldir

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#undef	_telldir

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#undef	__telldir

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#undef	telldir64

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#undef	_telldir64

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#undef	__telldir64

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#else

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#define TELLDIR64(p)	telldir64(p)

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#endif

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#endif

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#undef	closedir

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#undef	_closedir

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#undef	__closedir

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#undef	_getdents

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#undef	__getdents

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#undef	getdents64

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#undef	_getdents64

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#undef	__getdents64

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#undef	getdirentries

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#endif

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#if _mem_DIR

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#define CHEATDIR(p)	((p)->dir = *(p)->viewp->dirp)

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#else

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#define CHEATDIR(p)

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#endif

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typedef struct

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{

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	DIRDIR*		dirp;		/* system stream pointer	*/

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	ino_t		opaque;		/* opaque inode number		*/

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	int		level;		/* view level			*/

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} Dir_physical_t;

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typedef struct

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{

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	int		fd;		/* placeholder for dirfd()	*/

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#if _mem_DIR

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	DIRDIR		dir;		/* in case user checks *DIRDIR	*/

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#endif

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	Dir_physical_t*	viewp;		/* current directory in view	*/

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	Dir_physical_t	view[TABSIZE];	/* dirp's in view		*/

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	Hash_table_t*	overlay;	/* directory overlay hash	*/

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	int		boundary;	/* return . at each view level	*/

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} DIR;					/* directory stream descriptor	*/

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extern int		closedir(DIR*);

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extern DIR*		opendir(const char*);

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#if _HUH_2008_11_21

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extern struct dirent*	readdir(DIR*);

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#endif

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#if _lib_rewinddir && !defined(rewinddir)

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extern void		rewinddir(DIR*);

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#endif

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extern void		seekdir(DIR*, long);

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#if _lib_telldir && !defined(telldir)

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extern long		telldir(DIR*);

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#endif

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#endif

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