2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#)db.c 8.4 (Berkeley) 2/21/94
30 * $DragonFly: src/lib/libc/db/db/db.c,v 1.4 2005/09/19 09:02:02 asmodai Exp $
33 #include <sys/types.h>
43 dbopen(const char *fname, int flags, mode_t mode, DBTYPE type, const void *openinfo)
46 #define DB_FLAGS (DB_LOCK | DB_SHMEM | DB_TXN)
47 #define USE_OPEN_FLAGS \
48 (O_CREAT | O_EXCL | O_EXLOCK | O_NONBLOCK | O_RDONLY | \
49 O_RDWR | O_SHLOCK | O_TRUNC)
51 if ((flags & ~(USE_OPEN_FLAGS | DB_FLAGS)) == 0)
54 return (__bt_open(fname, flags & USE_OPEN_FLAGS,
55 mode, openinfo, (int)flags & DB_FLAGS));
57 return (__hash_open(fname, flags & USE_OPEN_FLAGS,
58 mode, openinfo, (int)flags & DB_FLAGS));
60 return (__rec_open(fname, flags & USE_OPEN_FLAGS,
61 mode, openinfo, (int)flags & DB_FLAGS));
77 * dbp: pointer to the DB structure.
82 /* The only thing that can succeed is a close. */
83 dbp->del = (int (*)(const DB *, const DBT *, u_int))__dberr;
84 dbp->fd = (int (*)(const DB *))__dberr;
85 dbp->get = (int (*)(const DB *, const DBT *, DBT *, u_int))__dberr;
86 dbp->put = (int (*)(const DB *, DBT *, const DBT *, u_int))__dberr;
87 dbp->seq = (int (*)(const DB *, DBT *, DBT *, u_int))__dberr;
88 dbp->sync = (int (*)(const DB *, u_int))__dberr;