usr/src/ucbhead/dbm.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 /*
  31  * University Copyright- Copyright (c) 1982, 1986, 1988
  32  * The Regents of the University of California
  33  * All Rights Reserved
  34  *
  35  * University Acknowledgment- Portions of this document are derived from
  36  * software developed by the University of California, Berkeley, and its
  37  * contributors.
  38  */
  39
  40 #ifndef _DBM_H
  41 #define _DBM_H
  42
  43 #pragma ident   "%Z%%M% %I%     %E% SMI"
  44
  45 #ifdef __cplusplus
  46 extern "C" {
  47 #endif
  48
  49 #define PBLKSIZ 1024
  50 #define DBLKSIZ 4096
  51 #define BYTESIZ 8
  52
  53 #ifndef NULL
  54 #define NULL    ((char *) 0)
  55 #endif
  56
  57 long    bitno;
  58 long    maxbno;
  59 long    blkno;
  60 long    hmask;
  61
  62 char    pagbuf[PBLKSIZ];
  63 char    dirbuf[DBLKSIZ];
  64
  65 int     dirf;
  66 int     pagf;
  67 int     dbrdonly;
  68
  69 #ifndef DATUM
  70 typedef struct
  71 {
  72         char    *dptr;
  73         int     dsize;
  74 } datum;
  75 #define DATUM
  76 #endif
  77
  78 #ifdef __STDC__
  79 datum   fetch(datum);
  80 datum   makdatum(char *, int);
  81 datum   firstkey(void);
  82 datum   nextkey(datum);
  83 datum   firsthash(long);
  84 long    calchash(datum);
  85 long    hashinc(long);
  86 #else
  87 datum   fetch();
  88 datum   makdatum();
  89 datum   firstkey();
  90 datum   nextkey();
  91 datum   firsthash();
  92 long    calchash();
  93 long    hashinc();
  94 #endif
  95
  96 #ifdef __cplusplus
  97 }
  98 #endif
  99
 100 #endif  /* _DBM_H */