Logo Search packages:      
Sourcecode: ksh version File versions  Download package

fs3d.h

/***********************************************************************
*                                                                      *
*               This software is part of the ast package               *
*                  Copyright (c) 1985-2006 AT&T Corp.                  *
*                      and is licensed under the                       *
*                  Common Public License, Version 1.0                  *
*                            by AT&T Corp.                             *
*                                                                      *
*                A copy of the License is available at                 *
*            http://www.opensource.org/licenses/cpl1.0.txt             *
*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
*                                                                      *
*              Information and Software Systems Research               *
*                            AT&T Research                             *
*                           Florham Park NJ                            *
*                                                                      *
*                 Glenn Fowler <gsf@research.att.com>                  *
*                  David Korn <dgk@research.att.com>                   *
*                   Phong Vo <kpv@research.att.com>                    *
*                                                                      *
***********************************************************************/
#pragma prototyped
/*
 * Glenn Fowler
 * AT&T Research
 *
 * 3d fs interface definitions
 */

#ifndef _FS3D_H
#define _FS3D_H

#include <ast_fs.h>

#if _int_st_spare1
#define iview(p)  ((p)->st_spare1)
#define IVIEW(p,v)      ((p)->st_spare1=(v))
#else
#if _ary_st_spare4
#define iview(p)  ((p)->st_spare4[0])
#define IVIEW(p,v)      ((p)->st_spare4[0]=(v))
#else
#if _ary_st_pad4
#define iview(p)  ((p)->st_pad4[0])
#define IVIEW(p,v)      ((p)->st_pad4[0]=(v))
#else
#if _mem_st_rdev_stat
#define iview(p)  ((S_ISBLK((p)->st_mode)||S_ISCHR((p)->st_mode))?0:(p)->st_rdev)
#define IVIEW(p,v)      do{if(!S_ISBLK((p)->st_mode)&&!S_ISCHR((p)->st_mode))(p)->st_rdev=(v);}while(0)
#else
#define iview(p)  0
#define IVIEW(p,v)
#endif
#endif
#endif
#endif

/*
 * special options
 */

#define FS3D_init "/#option/init"
#define FS3D_on         "/#option/3d"
#define FS3D_off  "/#option/2d"

/*
 * fs3d(3) ops
 */

#define FS3D_OP(o,a)    (((a)<<3)|(o))

#define FS3D_INIT FS3D_OP_INIT      /* re-initialize tables       */
#define FS3D_OFF  FS3D_OP_OFF
#define FS3D_ON         FS3D_OP_ON
#define FS3D_TEST FS3D_OP_TEST
#define FS3D_LIMIT(n)   FS3D_OP(FS3D_OP_LIMIT,n)

#define FS3D_op(x)      ((x)&07)
#define FS3D_arg(x)     (((x)>>3)&07777)

#define FS3D_OP_OFF     0
#define FS3D_OP_ON      1
#define FS3D_OP_TEST    2
#define FS3D_OP_LIMIT   3
#define FS3D_OP_INIT    7

/*
 * mount(2) ops
 */

#define FS3D_ALL  (FS3D_VIEW|FS3D_VERSION)
#define FS3D_VIEW 002
#define FS3D_VERSION    004
#define FS3D_GET  010
#define FS3D_SIZE(n)    ((n)<<4)
#define FS3D_SIZEOF(n)  ((n)>>4)

extern int        mount(const char*, char*, int, void*);

#if _BLD_ast && defined(__EXPORT__)
#define extern          __EXPORT__
#endif

extern int        fs3d(int);
extern char*            pathnext(char*, char*, long*);

#undef      extern

#endif

Generated by  Doxygen 1.6.0   Back to index