1 /* dbcache.c - manage cache of open databases */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2011 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
22 #include <ac/socket.h>
23 #include <ac/string.h>
38 struct mdb_info *mdb = (struct mdb_info *) be->be_private;
39 struct mdb_db_info *db;
44 for( i=MDB_NDB; i < mdb->mi_ndatabases; i++ ) {
45 if( !ber_bvcmp( &mdb->mi_databases[i]->mdi_name, name) ) {
46 *dbout = mdb->mi_databases[i]->mdi_dbi;
51 ldap_pvt_thread_mutex_lock( &mdb->mi_database_mutex );
53 /* check again! may have been added by another thread */
54 for( i=MDB_NDB; i < mdb->mi_ndatabases; i++ ) {
55 if( !ber_bvcmp( &mdb->mi_databases[i]->mdi_name, name) ) {
56 *dbout = mdb->mi_databases[i]->mdi_dbi;
57 ldap_pvt_thread_mutex_unlock( &mdb->mi_database_mutex );
62 if( i >= MDB_INDICES ) {
63 ldap_pvt_thread_mutex_unlock( &mdb->mi_database_mutex );
67 db = (struct mdb_db_info *) ch_calloc(1, sizeof(struct mdb_db_info));
69 ber_dupbv( &db->mdi_name, name );
71 rc = db_create( &db->mdi_dbi, mdb->mi_dbenv, 0 );
73 Debug( LDAP_DEBUG_ANY,
74 "mdb_db_cache: db_create(%s) failed: %s (%d)\n",
75 mdb->mi_dbenv_home, mdb_strerror(rc), rc );
76 ldap_pvt_thread_mutex_unlock( &mdb->mi_database_mutex );
81 file = ch_malloc( db->mdi_name.bv_len + sizeof(MDB_SUFFIX) );
82 strcpy( file, db->mdi_name.bv_val );
83 strcpy( file+db->mdi_name.bv_len, MDB_SUFFIX );
88 flags = DB_CREATE | DB_THREAD;
90 if ( !( slapMode & SLAP_TOOL_QUICK ))
91 flags |= DB_AUTO_COMMIT;
93 /* Cannot Truncate when Transactions are in use */
94 if ( (slapMode & (SLAP_TOOL_QUICK|SLAP_TRUNCATE_MODE)) ==
95 (SLAP_TOOL_QUICK|SLAP_TRUNCATE_MODE))
98 rc = DB_OPEN( db->mdi_dbi,
99 file, NULL /* name */,
100 MDB_INDEXTYPE, mdb->mi_db_opflags | flags, mdb->mi_dbenv_mode );
105 Debug( LDAP_DEBUG_ANY,
106 "mdb_db_cache: db_open(%s) failed: %s (%d)\n",
107 name->bv_val, mdb_strerror(rc), rc );
108 ldap_pvt_thread_mutex_unlock( &mdb->mi_database_mutex );
112 mdb->mi_databases[i] = db;
113 mdb->mi_ndatabases = i+1;
115 *dbout = db->mdi_dbi;
117 ldap_pvt_thread_mutex_unlock( &mdb->mi_database_mutex );