drh
65 lines
2.6 KiB
C
65 lines
2.6 KiB
C
/*
|
|
** Copyright (c) 1999, 2000 D. Richard Hipp
|
|
**
|
|
** This program is free software; you can redistribute it and/or
|
|
** modify it under the terms of the GNU General Public
|
|
** License as published by the Free Software Foundation; either
|
|
** version 2 of the License, or (at your option) any later version.
|
|
**
|
|
** This program is distributed in the hope that it will be useful,
|
|
** but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
** General Public License for more details.
|
|
**
|
|
** You should have received a copy of the GNU General Public
|
|
** License along with this library; if not, write to the
|
|
** Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
** Boston, MA 02111-1307, USA.
|
|
**
|
|
** Author contact information:
|
|
** drh@hwaci.com
|
|
** http://www.hwaci.com/drh/
|
|
**
|
|
*************************************************************************
|
|
** This file contains code to implement the database backend (DBBE)
|
|
** for sqlite. The database backend is the interface between
|
|
** sqlite and the code that does the actually reading and writing
|
|
** of information to the disk.
|
|
**
|
|
** This file uses GDBM as the database backend. It should be
|
|
** relatively simple to convert to a different database such
|
|
** as NDBM, SDBM, or BerkeleyDB.
|
|
**
|
|
** $Id: dbbe.c,v 1.21 2000/10/19 14:10:09 drh Exp $
|
|
*/
|
|
#include "sqliteInt.h"
|
|
|
|
/*
|
|
** This routine opens a new database. It looks at the first
|
|
** few characters of the database name to try to determine what
|
|
** kind of database to open. If the first characters are "gdbm:",
|
|
** then it uses the GDBM driver. If the first few characters are
|
|
** "memory:" then it uses the in-memory driver. If there is no
|
|
** match, the default to the GDBM driver.
|
|
**
|
|
** If successful, a pointer to the Dbbe structure is returned.
|
|
** If there are errors, an appropriate error message is left
|
|
** in *pzErrMsg and NULL is returned.
|
|
*/
|
|
Dbbe *sqliteDbbeOpen(
|
|
const char *zName, /* The name of the database */
|
|
int writeFlag, /* True if we will be writing to the database */
|
|
int createFlag, /* True to create database if it doesn't exist */
|
|
char **pzErrMsg /* Write error messages (if any) here */
|
|
){
|
|
extern Dbbe *sqliteGdbmOpen(const char*,int,int,char**);
|
|
if( strncmp(zName, "gdbm:", 5)==0 ){
|
|
return sqliteGdbmOpen(&zName[5], writeFlag, createFlag, pzErrMsg);
|
|
}
|
|
if( strncmp(zName, "memory:", 7)==0 ){
|
|
extern Dbbe *sqliteMemOpen(const char*,int,int,char**);
|
|
return sqliteMemOpen(&zName[7], writeFlag, createFlag, pzErrMsg);
|
|
}
|
|
return sqliteGdbmOpen(zName, writeFlag, createFlag, pzErrMsg);
|
|
}
|