/ Artifact [7e013843]

Artifact 7e01384320075bf1d3e7fb54984df73435908809:

** 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
** 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);