/* dbcache.c - manage cache of open databases */
/* $OpenLDAP$ */
-/*
- * Copyright 1998-2001 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2000-2005 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
*/
#include "portable.h"
#include "slap.h"
#include "back-bdb.h"
+#include "lutil_hash.h"
+
+#ifdef BDB_INDEX_USE_HASH
+/* Pass-thru hash function. Since the indexer is already giving us hash
+ * values as keys, we don't need BDB to re-hash them.
+ */
+static u_int32_t
+bdb_db_hash(
+ DB *db,
+ const void *bytes,
+ u_int32_t length
+)
+{
+ u_int32_t ret = 0;
+ unsigned char *dst = (unsigned char *)&ret;
+ const unsigned char *src = (const unsigned char *)bytes;
+
+ if ( length > sizeof(u_int32_t) )
+ length = sizeof(u_int32_t);
+
+ while ( length ) {
+ *dst++ = *src++;
+ length--;
+ }
+ return ret;
+}
+#define BDB_INDEXTYPE DB_HASH
+#else
+#define BDB_INDEXTYPE DB_BTREE
+#endif
int
bdb_db_cache(
const char *name,
DB **dbout )
{
- int i;
+ int i, flags;
int rc;
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
struct bdb_db_info *db;
*dbout = NULL;
- for( i=BDB_NDB; bdb->bi_databases[i]; i++ ) {
+ for( i=BDB_NDB; i < bdb->bi_ndatabases; i++ ) {
if( !strcmp( bdb->bi_databases[i]->bdi_name, name) ) {
*dbout = bdb->bi_databases[i]->bdi_db;
return 0;
ldap_pvt_thread_mutex_lock( &bdb->bi_database_mutex );
/* check again! may have been added by another thread */
- for( i=BDB_NDB; bdb->bi_databases[i]; i++ ) {
+ for( i=BDB_NDB; i < bdb->bi_ndatabases; i++ ) {
if( !strcmp( bdb->bi_databases[i]->bdi_name, name) ) {
*dbout = bdb->bi_databases[i]->bdi_db;
ldap_pvt_thread_mutex_unlock( &bdb->bi_database_mutex );
}
rc = db->bdi_db->set_pagesize( db->bdi_db, BDB_PAGESIZE );
-#ifdef BDB_IDL_MULTI
- rc = db->bdi_db->set_flags( db->bdi_db, DB_DUP | DB_DUPSORT );
+#ifdef BDB_INDEX_USE_HASH
+ rc = db->bdi_db->set_h_hash( db->bdi_db, bdb_db_hash );
#endif
+ rc = db->bdi_db->set_flags( db->bdi_db, DB_DUP | DB_DUPSORT );
file = ch_malloc( strlen( name ) + sizeof(BDB_SUFFIX) );
sprintf( file, "%s" BDB_SUFFIX, name );
- rc = db->bdi_db->open( db->bdi_db,
- file, name,
- DB_HASH, bdb->bi_db_opflags | DB_CREATE | DB_THREAD,
- bdb->bi_dbenv_mode );
+#ifdef HAVE_EBCDIC
+ __atoe( file );
+#endif
+ flags = DB_CREATE | DB_THREAD;
+#ifdef DB_AUTO_COMMIT
+ if ( !( slapMode & SLAP_TOOL_QUICK ))
+ flags |= DB_AUTO_COMMIT;
+#endif
+ /* Cannot Truncate when Transactions are in use */
+ if ( (slapMode & (SLAP_TOOL_QUICK|SLAP_TRUNCATE_MODE)) ==
+ (SLAP_TOOL_QUICK|SLAP_TRUNCATE_MODE))
+ flags |= DB_TRUNCATE;
+
+ rc = DB_OPEN( db->bdi_db,
+ file, NULL /* name */,
+ BDB_INDEXTYPE, bdb->bi_db_opflags | flags, bdb->bi_dbenv_mode );
ch_free( file );
return rc;
}
- bdb->bi_databases[i+1] = NULL;
bdb->bi_databases[i] = db;
bdb->bi_ndatabases = i+1;