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 * record format interface
28 */
29
30#ifndef _RECFMT_H
31#define _RECFMT_H		1
32
33#include <ast.h>
34
35typedef uint32_t Recfmt_t;
36
37#define REC_delimited		0
38#define REC_fixed		1
39#define REC_variable		2
40#define REC_method		14
41#define REC_none		15
42
43#define REC_M_path		0
44#define REC_M_data		1
45
46#define RECTYPE(f)		(((f)>>28)&((1<<4)-1))
47
48#define REC_D_TYPE(d)		((REC_delimited<<28)|((d)&((1<<8)-1)))
49#define REC_D_DELIMITER(f)	((f)&((1<<8)-1))
50
51#define REC_F_TYPE(s)		((REC_fixed<<28)|((s)&((1<<28)-1)))
52#define REC_F_SIZE(f)		((f)&((1<<28)-1))
53
54#define REC_U_TYPE(t,a)		(((t)<<28)|((a)&((1<<28)-1)))
55#define REC_U_ATTRIBUTES(f)	((f)&~((1<<28)-1))
56
57#define REC_V_TYPE(h,o,z,l,i)	((REC_variable<<28)|((h)<<23)|((o)<<19)|(((z)-1)<<18)|((l)<<17)|((i)<<16))
58#define REC_V_RECORD(f,s)	(((f)&(((1<<16)-1)<<16))|(s))
59#define REC_V_HEADER(f)		(((f)>>23)&((1<<5)-1))
60#define REC_V_OFFSET(f)		(((f)>>19)&((1<<4)-1))
61#define REC_V_LENGTH(f)		((((f)>>18)&1)+1)
62#define REC_V_LITTLE(f)		(((f)>>17)&1)
63#define REC_V_INCLUSIVE(f)	(((f)>>16)&1)
64#define REC_V_SIZE(f)		((f)&((1<<16)-1))
65#define REC_V_ATTRIBUTES(f)	((f)&~((1<<16)-1))
66
67#define REC_M_TYPE(i)		((REC_method<<28)|(i))
68#define REC_M_INDEX(f)		((f)&((1<<28)-1))
69
70#define REC_N_TYPE()		0xffffffff
71
72#if _BLD_ast && defined(__EXPORT__)
73#define extern		__EXPORT__
74#endif
75
76extern char*		fmtrec(Recfmt_t, int);
77extern Recfmt_t		recfmt(const void*, size_t, off_t);
78extern Recfmt_t		recstr(const char*, char**);
79extern ssize_t		reclen(Recfmt_t, const void*, size_t);
80
81#undef	extern
82
83#endif
84