diff options
Diffstat (limited to 'dbm/src/db.c')
| -rw-r--r-- | dbm/src/db.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/dbm/src/db.c b/dbm/src/db.c deleted file mode 100644 index e4b1fff8f..000000000 --- a/dbm/src/db.c +++ /dev/null @@ -1,144 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)db.c 8.4 (Berkeley) 2/21/94"; -#endif /* LIBC_SCCS and not lint */ - -#include "watcomfx.h" - -#ifndef __DBINTERFACE_PRIVATE -#define __DBINTERFACE_PRIVATE -#endif -#ifdef macintosh -#include <unix.h> -#else -#include <sys/types.h> -#endif - -#include <errno.h> -#include <fcntl.h> -#include <stddef.h> -#include <stdio.h> - -#include "mcom_db.h" - -/* a global flag that locks closed all databases */ -int all_databases_locked_closed = 0; - -/* set or unset a global lock flag to disable the - * opening of any DBM file - */ -void -dbSetOrClearDBLock(DBLockFlagEnum type) -{ - if(type == LockOutDatabase) - all_databases_locked_closed = 1; - else - all_databases_locked_closed = 0; -} - -#if defined(__WATCOMC__) || defined(__WATCOM_CPLUSPLUS__) -DB * -#else -PR_IMPLEMENT(DB *) -#endif -dbopen(const char *fname, int flags,int mode, DBTYPE type, const void *openinfo) -{ - - /* lock out all file databases. Let in-memory databases through - */ - if(all_databases_locked_closed && fname) - { - errno = EINVAL; - return(NULL); - } - -#define DB_FLAGS (DB_LOCK | DB_SHMEM | DB_TXN) - - -#if 0 /* most systems dont have EXLOCK and SHLOCK */ -#define USE_OPEN_FLAGS \ - (O_CREAT | O_EXCL | O_EXLOCK | O_NONBLOCK | O_RDONLY | \ - O_RDWR | O_SHLOCK | O_TRUNC) -#else -#define USE_OPEN_FLAGS \ - (O_CREAT | O_EXCL | O_RDONLY | \ - O_RDWR | O_TRUNC) -#endif - - if ((flags & ~(USE_OPEN_FLAGS | DB_FLAGS)) == 0) - switch (type) { -/* we don't need btree and recno right now */ -#if 0 - case DB_BTREE: - return (__bt_open(fname, flags & USE_OPEN_FLAGS, - mode, openinfo, flags & DB_FLAGS)); - case DB_RECNO: - return (__rec_open(fname, flags & USE_OPEN_FLAGS, - mode, openinfo, flags & DB_FLAGS)); -#endif - - case DB_HASH: - return (__hash_open(fname, flags & USE_OPEN_FLAGS, - mode, (const HASHINFO *)openinfo, flags & DB_FLAGS)); - default: - break; - } - errno = EINVAL; - return (NULL); -} - -static int -__dberr() -{ - return (RET_ERROR); -} - -/* - * __DBPANIC -- Stop. - * - * Parameters: - * dbp: pointer to the DB structure. - */ -void -__dbpanic(DB *dbp) -{ - /* The only thing that can succeed is a close. */ - dbp->del = (int (*)(const struct __db *, const DBT *, uint))__dberr; - dbp->fd = (int (*)(const struct __db *))__dberr; - dbp->get = (int (*)(const struct __db *, const DBT *, DBT *, uint))__dberr; - dbp->put = (int (*)(const struct __db *, DBT *, const DBT *, uint))__dberr; - dbp->seq = (int (*)(const struct __db *, DBT *, DBT *, uint))__dberr; - dbp->sync = (int (*)(const struct __db *, uint))__dberr; -} |