1/***********************************************************************
2*                                                                      *
3*               This software is part of the ast package               *
4*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5*                      and is licensed under the                       *
6*                 Eclipse Public License, Version 1.0                  *
7*                    by AT&T Intellectual Property                     *
8*                                                                      *
9*                A copy of the License is available at                 *
10*          http://www.eclipse.org/org/documents/epl-v10.html           *
11*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
12*                                                                      *
13*              Information and Software Systems Research               *
14*                            AT&T Research                             *
15*                           Florham Park NJ                            *
16*                                                                      *
17*                 Glenn Fowler <gsf@research.att.com>                  *
18*                  David Korn <dgk@research.att.com>                   *
19*                   Phong Vo <kpv@research.att.com>                    *
20*                                                                      *
21***********************************************************************/
22#pragma prototyped
23/*
24 * Glenn Fowler
25 * AT&T Research
26 *
27 * 3d fs interface definitions
28 */
29
30#ifndef _FS3D_H
31#define _FS3D_H
32
33#include <ast_fs.h>
34
35#if _int_st_spare1
36#define iview(p)	((p)->st_spare1)
37#define IVIEW(p,v)	((p)->st_spare1=(v))
38#else
39#if _ary_st_spare4
40#define iview(p)	((p)->st_spare4[0])
41#define IVIEW(p,v)	((p)->st_spare4[0]=(v))
42#else
43#if _ary_st_extra
44#define iview(p)	((p)->st_extra[0])
45#define IVIEW(p,v)	((p)->st_extra[0]=(v))
46#else
47#if _ary_st_pad4
48#define iview(p)	((p)->st_pad4[0])
49#define IVIEW(p,v)	((p)->st_pad4[0]=(v))
50#else
51#if _mem_st_rdev_stat
52#define iview(p)	((S_ISBLK((p)->st_mode)||S_ISCHR((p)->st_mode))?0:(p)->st_rdev)
53#define IVIEW(p,v)	do{if(!S_ISBLK((p)->st_mode)&&!S_ISCHR((p)->st_mode))(p)->st_rdev=(v);}while(0)
54#else
55#define iview(p)	0
56#define IVIEW(p,v)
57#endif
58#endif
59#endif
60#endif
61#endif
62
63/*
64 * special options
65 */
66
67#define FS3D_init	"/#option/init"
68#define FS3D_on		"/#option/3d"
69#define FS3D_off	"/#option/2d"
70
71/*
72 * fs3d(3) ops
73 */
74
75#define FS3D_OP(o,a)	(((a)<<3)|(o))
76
77#define FS3D_INIT	FS3D_OP_INIT	/* re-initialize tables		*/
78#define FS3D_OFF	FS3D_OP_OFF
79#define FS3D_ON		FS3D_OP_ON
80#define FS3D_TEST	FS3D_OP_TEST
81#define FS3D_LIMIT(n)	FS3D_OP(FS3D_OP_LIMIT,n)
82
83#define FS3D_op(x)	((x)&07)
84#define FS3D_arg(x)	(((x)>>3)&07777)
85
86#define FS3D_OP_OFF	0
87#define FS3D_OP_ON	1
88#define FS3D_OP_TEST	2
89#define FS3D_OP_LIMIT	3
90#define FS3D_OP_INIT	7
91
92/*
93 * mount(2) ops
94 */
95
96#define FS3D_ALL	(FS3D_VIEW|FS3D_VERSION)
97#define FS3D_VIEW	002
98#define FS3D_VERSION	004
99#define FS3D_GET	010
100#define FS3D_SIZE(n)	((n)<<4)
101#define FS3D_SIZEOF(n)	((n)>>4)
102
103#if !_BLD_3d
104#define mount(s,t,f,d)	fs3d_mount(s,t,f,d)
105#endif
106
107#if _BLD_ast && defined(__EXPORT__)
108#define extern		__EXPORT__
109#endif
110
111extern int		fs3d(int);
112extern int		fs3d_mount(const char*, char*, int, void*);
113extern char*		pathnext(char*, char*, long*);
114
115#undef	extern
116
117#endif
118