sdbm.h File Reference

#include <stdio.h>

Go to the source code of this file.

Data Structures
struct	DBM
struct	datum

Macros
#define	DBLKSIZ   4096
#define	PBLKSIZ   1024
#define	PAIRMAX   1008 /* arbitrary on PBLKSIZ-N */
#define	SPLTMAX   10 /* maximum allowed splits */
#define	DIRFEXT   ".dir"
#define	PAGFEXT   ".pag"
#define	DBM_RDONLY   0x1 /* data base open read-only */
#define	DBM_IOERR   0x2 /* data base I/O error */
#define	sdbm_rdonly(db)   ((db)->flags & DBM_RDONLY)
#define	sdbm_error(db)   ((db)->flags & DBM_IOERR)
#define	sdbm_clearerr(db)   ((db)->flags &= ~DBM_IOERR) /* ouch */
#define	sdbm_dirfno(db)   ((db)->dirf)
#define	sdbm_pagfno(db)   ((db)->pagf)
#define	proto(p)   ()
#define	DBM_INSERT   0
#define	DBM_REPLACE   1

Functions
DBM *sdbm_open	proto ((char *, int, int))
void sdbm_close	proto ((DBM *))
datum sdbm_fetch	proto ((DBM *, datum))
int sdbm_store	proto ((DBM *, datum, datum, int))
DBM *sdbm_prep	proto ((char *, char *, int, int))
long sdbm_hash	proto ((char *, int))

Variables
datum	nullitem

Macro Definition Documentation

DBLKSIZ

#define DBLKSIZ   4096

Definition at line 12 of file sdbm.h.

DBM_INSERT

#define DBM_INSERT   0

Definition at line 66 of file sdbm.h.

DBM_IOERR

#define DBM_IOERR   0x2 /* data base I/O error */

Definition at line 37 of file sdbm.h.

DBM_RDONLY

#define DBM_RDONLY   0x1 /* data base open read-only */

Definition at line 36 of file sdbm.h.

Referenced by sdbm_prep().

DBM_REPLACE

#define DBM_REPLACE   1

Definition at line 67 of file sdbm.h.

DIRFEXT

#define DIRFEXT   ".dir"

Definition at line 17 of file sdbm.h.

Referenced by sdbm_open().

PAGFEXT

#define PAGFEXT   ".pag"

Definition at line 18 of file sdbm.h.

Referenced by sdbm_open().

PAIRMAX

#define PAIRMAX   1008 /* arbitrary on PBLKSIZ-N */

Definition at line 14 of file sdbm.h.

PBLKSIZ

#define PBLKSIZ   1024

Definition at line 13 of file sdbm.h.

Referenced by sdbm_firstkey().

proto

#define proto

(

p

)

()

Definition at line 60 of file sdbm.h.

sdbm_clearerr

#define sdbm_clearerr

(

db

)

((db)->flags &= ~DBM_IOERR) /* ouch */

Definition at line 45 of file sdbm.h.

sdbm_dirfno

#define sdbm_dirfno

(

db

)

((db)->dirf)

Definition at line 47 of file sdbm.h.

sdbm_error

#define sdbm_error

(

db

)

((db)->flags & DBM_IOERR)

Definition at line 43 of file sdbm.h.

sdbm_pagfno

#define sdbm_pagfno

(

db

)

((db)->pagf)

Definition at line 48 of file sdbm.h.

sdbm_rdonly

#define sdbm_rdonly

(

db

)

((db)->flags & DBM_RDONLY)

Definition at line 42 of file sdbm.h.

Referenced by sdbm_delete().

SPLTMAX

#define SPLTMAX   10 /* maximum allowed splits */

Definition at line 15 of file sdbm.h.

Function Documentation

proto() [1/6]

DBM* sdbm_open proto

(

(char *, int, int)

)

proto() [2/6]

datum sdbm_nextkey proto

(

(DBM *)

)

proto() [3/6]

int sdbm_delete proto

(

(DBM *, datum)

)

proto() [4/6]

int sdbm_store proto

(

(DBM *, datum, datum, int)

)

proto() [5/6]

DBM* sdbm_prep proto

(

(char *, char *, int, int)

)

proto() [6/6]

long sdbm_hash proto

(

(char *, int)

)

Variable Documentation

nullitem

datum nullitem

Definition at line 145 of file _sdbm.c.

Referenced by sdbm_fetch(), sdbm_firstkey(), and sdbm_nextkey().