mirror of
https://git.openldap.org/openldap/openldap.git
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d8c4df6f39
back-ldbm needs modification to support db home directory as backend (as oppose to database) option.
266 lines
6.3 KiB
C
266 lines
6.3 KiB
C
/* $OpenLDAP$ */
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/*
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* Copyright 1998-2000 The OpenLDAP Foundation, Redwood City, California, USA
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted only
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* as authorized by the OpenLDAP Public License. A copy of this
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* license is available at http://www.OpenLDAP.org/license.html or
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* in file LICENSE in the top-level directory of the distribution.
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*/
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/* ldbm.h - ldap dbm compatibility routine header file */
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#ifndef _LDBM_H_
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#define _LDBM_H_
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#include <ldap_cdefs.h>
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#if defined( LDBM_USE_DBBTREE ) || defined( LDBM_USE_DBHASH )
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/*****************************************************************
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* *
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* use berkeley db btree or hash package *
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* *
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*****************************************************************/
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#include <sys/types.h>
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#include <limits.h>
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#include <fcntl.h>
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#ifdef HAVE_DB_185_H
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# include <db_185.h>
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#else
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# ifdef HAVE_DB1_DB_H
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# include <db1/db.h>
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# else
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# include <db.h>
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# endif
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#endif
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#ifndef DB_VERSION_MAJOR
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# define DB_VERSION_MAJOR 1
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#endif
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#ifndef DB_VERSION_MINOR
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# define DB_VERSION_MINOR 85
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#endif
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#if DB_VERSION_MAJOR >= 2
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# define R_NOOVERWRITE DB_NOOVERWRITE
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# ifndef DEFAULT_DB_PAGE_SIZE
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# define DEFAULT_DB_PAGE_SIZE 4096
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# endif
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#endif
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LDAP_BEGIN_DECL
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typedef DBT Datum;
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#define dsize size
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#define dptr data
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typedef DB *LDBM;
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/* for ldbm_open */
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#if DB_VERSION_MAJOR >= 2
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typedef DBC LDBMCursor;
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# define LDBM_READER DB_RDONLY
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# define LDBM_WRITER 0x00000 /* hopefully */
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# if defined( HAVE_BERKELEY_DB_THREAD )
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# define LDBM_WRCREAT (DB_NOMMAP|DB_CREATE|DB_THREAD)
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# define LDBM_NEWDB (DB_TRUNCATE|DB_CREATE|DB_THREAD)
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# else
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# define LDBM_WRCREAT (DB_NOMMAP|DB_CREATE)
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# define LDBM_NEWDB (DB_TRUNCATE|DB_CREATE)
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# endif
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#else
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typedef void LDBMCursor;
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# define LDBM_READER O_RDONLY
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# define LDBM_WRITER O_RDWR
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# define LDBM_WRCREAT (O_RDWR|O_CREAT)
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# define LDBM_NEWDB (O_RDWR|O_TRUNC|O_CREAT)
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#endif
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LDAP_END_DECL
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/* for ldbm_open */
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#define LDBM_NOSYNC 0
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#define LDBM_SYNC 0
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#define LDBM_LOCKING 0
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#define LDBM_NOLOCKING 0
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/* for ldbm_insert */
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#define LDBM_INSERT R_NOOVERWRITE
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#define LDBM_REPLACE 0
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#ifdef LDBM_USE_DBBTREE
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# define LDBM_ORDERED 1
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# define LDBM_SUFFIX ".dbb"
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# define DB_TYPE DB_BTREE
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#else
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# define LDBM_SUFFIX ".dbh"
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# define DB_TYPE DB_HASH
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#endif
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#elif defined( HAVE_GDBM )
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/*****************************************************************
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* *
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* use gdbm if possible *
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* *
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*****************************************************************/
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#include <gdbm.h>
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LDAP_BEGIN_DECL
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typedef datum Datum;
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typedef Datum LDBMCursor;
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typedef GDBM_FILE LDBM;
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extern gdbm_error gdbm_errno;
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LDAP_END_DECL
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/* for ldbm_open */
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#define LDBM_READER GDBM_READER
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#define LDBM_WRITER GDBM_WRITER
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#define LDBM_WRCREAT GDBM_WRCREAT
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#define LDBM_NEWDB GDBM_NEWDB
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#ifdef GDBM_FAST
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#define LDBM_NOSYNC GDBM_FAST
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#else
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#define LDBM_NOSYNC 0
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#endif
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#ifdef GDBM_SYNC
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#define LDBM_SYNC GDBM_SYNC
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#else
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#define LDBM_SYNC 0
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#endif
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#define LDBM_LOCKING 0
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#ifdef GDBM_NOLOCK
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#define LDBM_NOLOCKING GDBM_NOLOCK
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#else
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#define LDBM_NOLOCKING 0
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#endif
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#define LDBM_SUFFIX ".gdbm"
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/* for ldbm_insert */
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#define LDBM_INSERT GDBM_INSERT
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#define LDBM_REPLACE GDBM_REPLACE
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#elif defined( HAVE_MDBM )
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/*****************************************************************
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* *
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* use mdbm if possible *
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* *
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*****************************************************************/
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#include <mdbm.h>
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LDAP_BEGIN_DECL
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typedef datum Datum;
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typedef int LDBMCursor;
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typedef MDBM *LDBM;
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LDAP_END_DECL
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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/* for ldbm_open */
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#define LDBM_READER O_RDONLY
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#define LDBM_WRITER O_RDWR
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#define LDBM_WRCREAT (O_RDWR|O_CREAT)
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#define LDBM_NEWDB (O_RDWR|O_TRUNC|O_CREAT)
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#define LDBM_SYNC 0
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#define LDBM_NOSYNC 0
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#define LDBM_LOCKING 0
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#define LDBM_NOLOCKING 0
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#define LDBM_SUFFIX ".mdbm"
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/* for ldbm_insert */
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#define LDBM_INSERT MDBM_INSERT
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#define LDBM_REPLACE MDBM_REPLACE
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#elif defined( HAVE_NDBM )
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/*****************************************************************
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* *
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* if none of the above use ndbm, the standard unix thing *
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* *
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*****************************************************************/
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#include <ndbm.h>
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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LDAP_BEGIN_DECL
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typedef datum Datum;
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typedef int LDBMCursor;
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typedef DBM *LDBM;
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LDAP_END_DECL
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/* for ldbm_open */
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#define LDBM_READER O_RDONLY
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#define LDBM_WRITER O_WRONLY
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#define LDBM_WRCREAT (O_RDWR|O_CREAT)
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#define LDBM_NEWDB (O_RDWR|O_TRUNC|O_CREAT)
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#define LDBM_NOSYNC 0
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#define LDBM_SYNC 0
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#define LDBM_NOLOCK 0
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#define LDBM_SYNC 0
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#define LDBM_SUFFIX ".ndbm"
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/* for ldbm_insert */
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#define LDBM_INSERT DBM_INSERT
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#define LDBM_REPLACE DBM_REPLACE
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#endif
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LDAP_BEGIN_DECL
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LDAP_LDBM_F (int) ldbm_initialize( const char * );
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LDAP_LDBM_F (int) ldbm_shutdown( void );
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LDAP_LDBM_F (int) ldbm_errno( LDBM ldbm );
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LDAP_LDBM_F (LDBM) ldbm_open( char *name, int rw, int mode, int dbcachesize );
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LDAP_LDBM_F (void) ldbm_close( LDBM ldbm );
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LDAP_LDBM_F (void) ldbm_sync( LDBM ldbm );
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LDAP_LDBM_F (void) ldbm_datum_free( LDBM ldbm, Datum data );
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LDAP_LDBM_F (Datum) ldbm_datum_dup( LDBM ldbm, Datum data );
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LDAP_LDBM_F (Datum) ldbm_fetch( LDBM ldbm, Datum key );
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LDAP_LDBM_F (int) ldbm_store( LDBM ldbm, Datum key, Datum data, int flags );
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LDAP_LDBM_F (int) ldbm_delete( LDBM ldbm, Datum key );
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LDAP_LDBM_F (Datum) ldbm_firstkey( LDBM ldbm, LDBMCursor **cursor );
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LDAP_LDBM_F (Datum) ldbm_nextkey( LDBM ldbm, Datum key, LDBMCursor *cursor );
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/* initialization of Datum structures */
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#if defined( HAVE_BERKELEY_DB ) && (DB_VERSION_MAJOR >= 2)
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LDAP_LDBM_F (void *) ldbm_malloc( size_t size );
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# define ldbm_datum_init(d) ((void)memset(&(d), '\0', sizeof(Datum)))
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#else
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# define ldbm_datum_init(d) ((void)0)
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#endif /* HAVE_BERKELEY_DB */
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LDAP_END_DECL
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#endif /* _ldbm_h_ */
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