* Copyright (c) 1983 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
* @(#)ndbm.h 5.1 (Berkeley) %G%
* Hashed key data base library.
int dbm_dirf
; /* open directory file */
int dbm_pagf
; /* open page file */
int dbm_flags
; /* flags, see below */
long dbm_maxbno
; /* last ``bit'' in dir file */
long dbm_bitno
; /* current bit number */
long dbm_hmask
; /* hash mask */
long dbm_blkptr
; /* current block for dbm_nextkey */
int dbm_keyptr
; /* current key for dbm_nextkey */
long dbm_blkno
; /* current page to read/write */
long dbm_pagbno
; /* current page in pagbuf */
char dbm_pagbuf
[PBLKSIZ
]; /* page file block buffer */
long dbm_dirbno
; /* current block in dirbuf */
char dbm_dirbuf
[DBLKSIZ
]; /* directory file block buffer */
#define _DBM_RDONLY 0x1 /* data base open read-only */
#define _DBM_IOERR 0x2 /* data base I/O error */
#define dbm_rdonly(db) ((db)->dbm_flags & _DBM_RDONLY)
#define dbm_error(db) ((db)->dbm_flags & _DBM_IOERR)
/* use this one at your own risk! */
#define dbm_clearerr(db) ((db)->dbm_flags &= ~_DBM_IOERR)
/* for flock(2) and fstat(2) */
#define dbm_dirfno(db) ((db)->dbm_dirf)
#define dbm_pagfno(db) ((db)->dbm_pagf)