/* dbcache.c - manage cache of open databases */
/* $OpenLDAP$ */
-/*
- * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2000-2012 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 "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.
*/
}
return ret;
}
+#define BDB_INDEXTYPE DB_HASH
+#else
+#define BDB_INDEXTYPE DB_BTREE
+#endif
+
+/* If a configured size is found, return it, otherwise return 0 */
+int
+bdb_db_findsize(
+ struct bdb_info *bdb,
+ struct berval *name
+)
+{
+ struct bdb_db_pgsize *bp;
+ int rc;
+
+ for ( bp = bdb->bi_pagesizes; bp; bp=bp->bdp_next ) {
+ rc = strncmp( name->bv_val, bp->bdp_name.bv_val, name->bv_len );
+ if ( !rc ) {
+ if ( name->bv_len == bp->bdp_name.bv_len )
+ return bp->bdp_size;
+ if ( name->bv_len < bp->bdp_name.bv_len &&
+ bp->bdp_name.bv_val[name->bv_len] == '.' )
+ return bp->bdp_size;
+ }
+ }
+ return 0;
+}
int
bdb_db_cache(
Backend *be,
- DB_TXN *tid,
- const char *name,
+ struct berval *name,
DB **dbout )
{
- int i;
+ int i, flags;
int rc;
- int flags;
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
struct bdb_db_info *db;
char *file;
- DBT lockobj;
- DB_LOCK lock;
- u_int32_t locker = 0;
*dbout = NULL;
- for( i=BDB_NDB; i < BDB_INDICES && bdb->bi_databases[i]; i++ ) {
- if( !strcmp( bdb->bi_databases[i]->bdi_name, name) ) {
+ for( i=BDB_NDB; i < bdb->bi_ndatabases; i++ ) {
+ if( !ber_bvcmp( &bdb->bi_databases[i]->bdi_name, name) ) {
*dbout = bdb->bi_databases[i]->bdi_db;
return 0;
}
}
- lockobj.data = "bdb_db_cache";
- lockobj.size = sizeof("bdb_db_cache");
-
- if (tid) {
- locker = TXN_ID( tid );
- } else {
-#ifdef BDB_REUSE_LOCKERS
-#define op NULL /* implicit arg in LOCK_ID */
-#endif
- rc = LOCK_ID( bdb->bi_dbenv, &locker );
- if (rc) return rc;
- }
- rc = LOCK_GET( bdb->bi_dbenv, locker, 0, &lockobj,
- DB_LOCK_WRITE, &lock );
- if (rc) return rc;
+ ldap_pvt_thread_mutex_lock( &bdb->bi_database_mutex );
/* check again! may have been added by another thread */
- for( i=BDB_NDB; i < BDB_INDICES && bdb->bi_databases[i]; i++ ) {
- if( !strcmp( bdb->bi_databases[i]->bdi_name, name) ) {
+ for( i=BDB_NDB; i < bdb->bi_ndatabases; i++ ) {
+ if( !ber_bvcmp( &bdb->bi_databases[i]->bdi_name, name) ) {
*dbout = bdb->bi_databases[i]->bdi_db;
- LOCK_PUT( bdb->bi_dbenv, &lock);
+ ldap_pvt_thread_mutex_unlock( &bdb->bi_database_mutex );
return 0;
}
}
if( i >= BDB_INDICES ) {
- LOCK_PUT( bdb->bi_dbenv, &lock);
+ ldap_pvt_thread_mutex_unlock( &bdb->bi_database_mutex );
return -1;
}
db = (struct bdb_db_info *) ch_calloc(1, sizeof(struct bdb_db_info));
- db->bdi_name = ch_strdup( name );
+ ber_dupbv( &db->bdi_name, name );
rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
if( rc != 0 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG ( CACHE, ERR,
- "bdb_db_cache: db_create(%s) failed: %s (%d)\n",
- bdb->bi_dbenv_home, db_strerror(rc), rc );
-#else
Debug( LDAP_DEBUG_ANY,
"bdb_db_cache: db_create(%s) failed: %s (%d)\n",
bdb->bi_dbenv_home, db_strerror(rc), rc );
-#endif
- LOCK_PUT( bdb->bi_dbenv, &lock);
+ ldap_pvt_thread_mutex_unlock( &bdb->bi_database_mutex );
+ ch_free( db );
return rc;
}
- rc = db->bdi_db->set_pagesize( db->bdi_db, BDB_PAGESIZE );
+ if( !BER_BVISNULL( &bdb->bi_db_crypt_key )) {
+ rc = db->bdi_db->set_flags( db->bdi_db, DB_ENCRYPT );
+ if ( rc ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_cache: db set_flags(DB_ENCRYPT)(%s) failed: %s (%d)\n",
+ bdb->bi_dbenv_home, db_strerror(rc), rc );
+ ldap_pvt_thread_mutex_unlock( &bdb->bi_database_mutex );
+ db->bdi_db->close( db->bdi_db, 0 );
+ ch_free( db );
+ return rc;
+ }
+ }
+
+ if( bdb->bi_flags & BDB_CHKSUM ) {
+ rc = db->bdi_db->set_flags( db->bdi_db, DB_CHKSUM );
+ if ( rc ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_cache: db set_flags(DB_CHKSUM)(%s) failed: %s (%d)\n",
+ bdb->bi_dbenv_home, db_strerror(rc), rc );
+ ldap_pvt_thread_mutex_unlock( &bdb->bi_database_mutex );
+ db->bdi_db->close( db->bdi_db, 0 );
+ ch_free( db );
+ return rc;
+ }
+ }
+
+ /* If no explicit size set, use the FS default */
+ flags = bdb_db_findsize( bdb, name );
+ if ( flags )
+ rc = db->bdi_db->set_pagesize( db->bdi_db, flags );
+
+#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 );
- rc = db->bdi_db->set_dup_compare( db->bdi_db, bdb_bt_compare );
- file = ch_malloc( strlen( name ) + sizeof(BDB_SUFFIX) );
- sprintf( file, "%s" BDB_SUFFIX, name );
+ file = ch_malloc( db->bdi_name.bv_len + sizeof(BDB_SUFFIX) );
+ strcpy( file, db->bdi_name.bv_val );
+ strcpy( file+db->bdi_name.bv_len, BDB_SUFFIX );
#ifdef HAVE_EBCDIC
__atoe( file );
#endif
- flags = bdb->bi_db_opflags | DB_CREATE | DB_THREAD;
- if ( !tid ) flags |= DB_AUTO_COMMIT;
- rc = DB_OPEN( db->bdi_db, tid,
+ 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 */,
- DB_HASH, flags,
- bdb->bi_dbenv_mode );
+ BDB_INDEXTYPE, bdb->bi_db_opflags | flags, bdb->bi_dbenv_mode );
ch_free( file );
if( rc != 0 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG ( CACHE, ERR,
- "bdb_db_cache: db_open(%s) failed: %s (%d)\n",
- name, db_strerror(rc), rc );
-#else
Debug( LDAP_DEBUG_ANY,
"bdb_db_cache: db_open(%s) failed: %s (%d)\n",
- name, db_strerror(rc), rc );
-#endif
- LOCK_PUT( bdb->bi_dbenv, &lock);
+ name->bv_val, db_strerror(rc), rc );
+ ldap_pvt_thread_mutex_unlock( &bdb->bi_database_mutex );
return rc;
}
*dbout = db->bdi_db;
- LOCK_PUT( bdb->bi_dbenv, &lock );
+ ldap_pvt_thread_mutex_unlock( &bdb->bi_database_mutex );
return 0;
}
projects / openldap / blobdiff