3 * Copyright 1998-2000 The OpenLDAP Foundation, Redwood City, California, USA
6 * Redistribution and use in source and binary forms are permitted only
7 * as authorized by the OpenLDAP Public License. A copy of this
8 * license is available at http://www.OpenLDAP.org/license.html or
9 * in file LICENSE in the top-level directory of the distribution.
11 /* ldbm.h - ldap dbm compatibility routine header file */
16 #include <ldap_cdefs.h>
18 #if defined( LDBM_USE_DBBTREE ) || defined( LDBM_USE_DBHASH )
20 /*****************************************************************
22 * use berkeley db btree or hash package *
24 *****************************************************************/
25 #include <sys/types.h>
31 #ifndef DB_VERSION_MAJOR
32 # define DB_VERSION_MAJOR 1
34 #ifndef DB_VERSION_MINOR
35 # define DB_VERSION_MINOR 85
43 # if DB_VERSION_MAJOR >= 2
44 # define R_NOOVERWRITE DB_NOOVERWRITE
45 # ifndef DEFAULT_DB_PAGE_SIZE
46 # define DEFAULT_DB_PAGE_SIZE 4096
62 #if DB_VERSION_MAJOR >= 2
63 typedef DBC LDBMCursor;
65 # define LDBM_READER DB_RDONLY
66 # define LDBM_WRITER 0x00000 /* hopefully */
67 # if defined( HAVE_BERKELEY_DB_THREAD )
68 # define LDBM_WRCREAT (DB_NOMMAP|DB_CREATE|DB_THREAD)
69 # define LDBM_NEWDB (DB_TRUNCATE|DB_CREATE|DB_THREAD)
71 # define LDBM_WRCREAT (DB_NOMMAP|DB_CREATE)
72 # define LDBM_NEWDB (DB_TRUNCATE|DB_CREATE)
76 typedef void LDBMCursor;
77 # define LDBM_READER O_RDONLY
78 # define LDBM_WRITER O_RDWR
79 # define LDBM_WRCREAT (O_RDWR|O_CREAT)
80 # define LDBM_NEWDB (O_RDWR|O_TRUNC|O_CREAT)
88 #define LDBM_LOCKING 0
89 #define LDBM_NOLOCKING 0
92 #define LDBM_INSERT R_NOOVERWRITE
93 #define LDBM_REPLACE 0
95 #ifdef LDBM_USE_DBBTREE
96 # define LDBM_ORDERED 1
97 # define LDBM_SUFFIX ".dbb"
98 # define DB_TYPE DB_BTREE
100 # define LDBM_SUFFIX ".dbh"
101 # define DB_TYPE DB_HASH
104 #elif defined( HAVE_GDBM )
106 /*****************************************************************
108 * use gdbm if possible *
110 *****************************************************************/
117 typedef Datum LDBMCursor;
118 typedef GDBM_FILE LDBM;
120 extern gdbm_error gdbm_errno;
125 #define LDBM_READER GDBM_READER
126 #define LDBM_WRITER GDBM_WRITER
127 #define LDBM_WRCREAT GDBM_WRCREAT
128 #define LDBM_NEWDB GDBM_NEWDB
131 #define LDBM_NOSYNC GDBM_FAST
133 #define LDBM_NOSYNC 0
137 #define LDBM_SYNC GDBM_SYNC
142 #define LDBM_LOCKING 0
144 #define LDBM_NOLOCKING GDBM_NOLOCK
146 #define LDBM_NOLOCKING 0
149 #define LDBM_SUFFIX ".gdbm"
151 /* for ldbm_insert */
152 #define LDBM_INSERT GDBM_INSERT
153 #define LDBM_REPLACE GDBM_REPLACE
155 #elif defined( HAVE_MDBM )
157 /*****************************************************************
159 * use mdbm if possible *
161 *****************************************************************/
168 typedef int LDBMCursor;
173 #include <sys/types.h>
174 #include <sys/stat.h>
178 #define LDBM_READER O_RDONLY
179 #define LDBM_WRITER O_RDWR
180 #define LDBM_WRCREAT (O_RDWR|O_CREAT)
181 #define LDBM_NEWDB (O_RDWR|O_TRUNC|O_CREAT)
184 #define LDBM_NOSYNC 0
185 #define LDBM_LOCKING 0
186 #define LDBM_NOLOCKING 0
188 #define LDBM_SUFFIX ".mdbm"
190 /* for ldbm_insert */
191 #define LDBM_INSERT MDBM_INSERT
192 #define LDBM_REPLACE MDBM_REPLACE
194 #elif defined( HAVE_NDBM )
196 /*****************************************************************
198 * if none of the above use ndbm, the standard unix thing *
200 *****************************************************************/
211 typedef int LDBMCursor;
217 #define LDBM_READER O_RDONLY
218 #define LDBM_WRITER O_WRONLY
219 #define LDBM_WRCREAT (O_RDWR|O_CREAT)
220 #define LDBM_NEWDB (O_RDWR|O_TRUNC|O_CREAT)
222 #define LDBM_NOSYNC 0
224 #define LDBM_NOLOCK 0
227 #define LDBM_SUFFIX ".ndbm"
229 /* for ldbm_insert */
230 #define LDBM_INSERT DBM_INSERT
231 #define LDBM_REPLACE DBM_REPLACE
237 LIBLDBM_F (int) ldbm_initialize( void );
238 LIBLDBM_F (int) ldbm_shutdown( void );
240 LIBLDBM_F (int) ldbm_errno( LDBM ldbm );
241 LIBLDBM_F (LDBM) ldbm_open( char *name, int rw, int mode, int dbcachesize );
242 LIBLDBM_F (void) ldbm_close( LDBM ldbm );
243 LIBLDBM_F (void) ldbm_sync( LDBM ldbm );
244 LIBLDBM_F (void) ldbm_datum_free( LDBM ldbm, Datum data );
245 LIBLDBM_F (Datum) ldbm_datum_dup( LDBM ldbm, Datum data );
246 LIBLDBM_F (Datum) ldbm_fetch( LDBM ldbm, Datum key );
247 LIBLDBM_F (int) ldbm_store( LDBM ldbm, Datum key, Datum data, int flags );
248 LIBLDBM_F (int) ldbm_delete( LDBM ldbm, Datum key );
250 LIBLDBM_F (Datum) ldbm_firstkey( LDBM ldbm, LDBMCursor **cursor );
251 LIBLDBM_F (Datum) ldbm_nextkey( LDBM ldbm, Datum key, LDBMCursor *cursor );
253 /* initialization of Datum structures */
254 #if defined( HAVE_BERKELEY_DB ) && (DB_VERSION_MAJOR >= 2)
255 LIBLDBM_F (void *) ldbm_malloc( size_t size );
256 # define ldbm_datum_init(d) ((void)memset(&(d), 0, sizeof(Datum)))
258 # define ldbm_datum_init(d) ((void)0)
259 #endif /* HAVE_BERKELEY_DB */
263 #endif /* _ldbm_h_ */