recfmt.h revision da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2007 AT&T Knowledge Ventures *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Knowledge Ventures *
* *
* 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
*
* record format interface
*/
#ifndef _RECFMT_H
#define _RECFMT_H 1
#include <ast.h>
typedef uint32_t Recfmt_t;
#define REC_delimited 0
#define REC_fixed 1
#define REC_variable 2
#define REC_method 14
#define REC_none 15
#define REC_M_path 0
#define REC_M_data 1
#define RECTYPE(f) (((f)>>28)&((1<<4)-1))
#define REC_D_TYPE(d) ((REC_delimited<<28)|((d)&((1<<8)-1)))
#define REC_D_DELIMITER(f) ((f)&((1<<8)-1))
#define REC_F_TYPE(s) ((REC_fixed<<28)|((s)&((1<<28)-1)))
#define REC_F_SIZE(f) ((f)&((1<<28)-1))
#define REC_U_TYPE(t,a) (((t)<<28)|((a)&((1<<28)-1)))
#define REC_U_ATTRIBUTES(f) ((f)&~((1<<28)-1))
#define REC_V_TYPE(h,o,z,l,i) ((REC_variable<<28)|((h)<<23)|((o)<<19)|(((z)-1)<<18)|((l)<<17)|((i)<<16))
#define REC_V_RECORD(f,s) (((f)&(((1<<16)-1)<<16))|(s))
#define REC_V_HEADER(f) (((f)>>23)&((1<<5)-1))
#define REC_V_OFFSET(f) (((f)>>19)&((1<<4)-1))
#define REC_V_LENGTH(f) ((((f)>>18)&1)+1)
#define REC_V_LITTLE(f) (((f)>>17)&1)
#define REC_V_INCLUSIVE(f) (((f)>>16)&1)
#define REC_V_SIZE(f) ((f)&((1<<16)-1))
#define REC_V_ATTRIBUTES(f) ((f)&~((1<<16)-1))
#define REC_M_TYPE(i) ((REC_method<<28)|(i))
#define REC_M_INDEX(f) ((f)&((1<<28)-1))
#define REC_N_TYPE() 0xffffffff
#if _BLD_ast && defined(__EXPORT__)
#define extern __EXPORT__
#endif
extern char* fmtrec(Recfmt_t, int);
extern Recfmt_t recfmt(const void*, size_t, off_t);
extern Recfmt_t recstr(const char*, char**);
extern ssize_t reclen(Recfmt_t, const void*, size_t);
#undef extern
#endif