usr/src/lib/libast/common/include/recfmt.h

   1 /***********************************************************************
   2 *                                                                      *
   3 *               This software is part of the ast package               *
   4 *          Copyright (c) 1985-2010 AT&T Intellectual Property          *
   5 *                      and is licensed under the                       *
   6 *                  Common Public License, Version 1.0                  *
   7 *                    by AT&T Intellectual Property                     *
   8 *                                                                      *
   9 *                A copy of the License is available at                 *
  10 *            http://www.opensource.org/licenses/cpl1.0.txt             *
  11 *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
  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
  35 typedef 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
  76 extern char*            fmtrec(Recfmt_t, int);
  77 extern Recfmt_t         recfmt(const void*, size_t, off_t);
  78 extern Recfmt_t         recstr(const char*, char**);
  79 extern ssize_t          reclen(Recfmt_t, const void*, size_t);
  80
  81 #undef  extern
  82
  83 #endif