2000-09-20 04:13:41 +08:00
|
|
|
/* init.c - initialize bdb backend */
|
|
|
|
/* $OpenLDAP$ */
|
|
|
|
/*
|
|
|
|
* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
|
|
|
|
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "portable.h"
|
|
|
|
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <ac/string.h>
|
|
|
|
|
|
|
|
#include "back-bdb.h"
|
|
|
|
|
|
|
|
int bdb_next_id( BackendDB *be, DB_TXN *tid, ID *out )
|
|
|
|
{
|
|
|
|
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
|
|
|
|
int rc;
|
|
|
|
ID kid = NOID;
|
|
|
|
ID id;
|
|
|
|
DBT key, data;
|
2001-11-27 10:35:20 +08:00
|
|
|
DB_TXN *ltid = NULL;
|
2000-09-22 09:40:57 +08:00
|
|
|
|
2000-09-20 04:13:41 +08:00
|
|
|
DBTzero( &key );
|
|
|
|
key.data = (char *) &kid;
|
|
|
|
key.size = sizeof( kid );
|
|
|
|
|
|
|
|
DBTzero( &data );
|
|
|
|
data.data = (char *) &id;
|
|
|
|
data.ulen = sizeof( id );
|
|
|
|
data.flags = DB_DBT_USERMEM;
|
|
|
|
|
2000-09-24 07:15:40 +08:00
|
|
|
if( 0 ) {
|
|
|
|
retry: if( tid != NULL ) {
|
|
|
|
/* nested transaction, abort and return */
|
|
|
|
(void) txn_abort( ltid );
|
2000-09-26 08:43:00 +08:00
|
|
|
Debug( LDAP_DEBUG_ANY,
|
|
|
|
"=> bdb_next_id: aborted!\n",
|
|
|
|
0, 0, 0 );
|
2000-09-24 07:15:40 +08:00
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
rc = txn_abort( ltid );
|
|
|
|
if( rc != 0 ) {
|
2000-09-26 08:43:00 +08:00
|
|
|
Debug( LDAP_DEBUG_ANY,
|
|
|
|
"=> bdb_next_id: txn_abort failed: %s (%d)\n",
|
|
|
|
db_strerror(rc), rc, 0 );
|
2000-09-24 07:15:40 +08:00
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2001-11-27 11:41:03 +08:00
|
|
|
if( bdb->bi_txn ) {
|
|
|
|
rc = txn_begin( bdb->bi_dbenv, tid, <id, 0 );
|
|
|
|
if( rc != 0 ) {
|
|
|
|
Debug( LDAP_DEBUG_ANY,
|
|
|
|
"=> bdb_next_id: txn_begin failed: %s (%d)\n",
|
|
|
|
db_strerror(rc), rc, 0 );
|
|
|
|
return rc;
|
|
|
|
}
|
2000-09-24 07:15:40 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/* get existing value for read/modify/write */
|
2000-09-22 14:46:32 +08:00
|
|
|
rc = bdb->bi_nextid->bdi_db->get( bdb->bi_nextid->bdi_db,
|
2000-09-22 09:40:57 +08:00
|
|
|
ltid, &key, &data, DB_RMW );
|
2000-09-20 04:13:41 +08:00
|
|
|
|
2000-09-24 07:15:40 +08:00
|
|
|
switch(rc) {
|
|
|
|
case DB_LOCK_DEADLOCK:
|
|
|
|
case DB_LOCK_NOTGRANTED:
|
|
|
|
goto retry;
|
|
|
|
|
|
|
|
case DB_NOTFOUND:
|
2000-09-26 02:59:15 +08:00
|
|
|
id = 0;
|
2000-09-24 07:15:40 +08:00
|
|
|
break;
|
2000-09-20 04:13:41 +08:00
|
|
|
|
2000-09-24 07:15:40 +08:00
|
|
|
case 0:
|
2000-09-26 08:56:33 +08:00
|
|
|
if ( data.size != sizeof( id ) ) {
|
2000-09-26 08:43:00 +08:00
|
|
|
Debug( LDAP_DEBUG_ANY,
|
|
|
|
"=> bdb_next_id: get size mismatch: expected %ld, got %ld\n",
|
2000-09-26 08:56:33 +08:00
|
|
|
(long) sizeof( id ), (long) data.size, 0 );
|
2000-09-24 07:15:40 +08:00
|
|
|
rc = -1;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
break;
|
2000-09-20 04:13:41 +08:00
|
|
|
|
2000-09-24 07:15:40 +08:00
|
|
|
default:
|
2000-09-26 08:43:00 +08:00
|
|
|
Debug( LDAP_DEBUG_ANY,
|
|
|
|
"=> bdb_next_id: get failed: %s (%d)\n",
|
|
|
|
db_strerror(rc), rc, 0 );
|
2000-09-22 09:40:57 +08:00
|
|
|
goto done;
|
2000-09-20 04:13:41 +08:00
|
|
|
}
|
|
|
|
|
2001-07-31 15:53:21 +08:00
|
|
|
if( bdb->bi_lastid > id ) id = bdb->bi_lastid;
|
2001-07-31 12:55:14 +08:00
|
|
|
|
2000-09-20 04:13:41 +08:00
|
|
|
id++;
|
2000-09-26 08:56:33 +08:00
|
|
|
data.size = sizeof( id );
|
2000-09-20 04:13:41 +08:00
|
|
|
|
2000-09-24 07:15:40 +08:00
|
|
|
/* put new value */
|
2000-09-22 14:46:32 +08:00
|
|
|
rc = bdb->bi_nextid->bdi_db->put( bdb->bi_nextid->bdi_db,
|
2000-09-22 09:40:57 +08:00
|
|
|
ltid, &key, &data, 0 );
|
2000-09-20 04:13:41 +08:00
|
|
|
|
2000-09-24 07:15:40 +08:00
|
|
|
switch(rc) {
|
|
|
|
case DB_LOCK_DEADLOCK:
|
|
|
|
case DB_LOCK_NOTGRANTED:
|
|
|
|
goto retry;
|
2000-09-22 09:40:57 +08:00
|
|
|
|
2000-09-24 07:15:40 +08:00
|
|
|
case 0:
|
|
|
|
*out = id;
|
2001-06-15 15:08:37 +08:00
|
|
|
|
|
|
|
bdb->bi_lastid = id;
|
|
|
|
|
2001-11-27 11:41:03 +08:00
|
|
|
if (bdb->bi_txn) {
|
2001-11-27 10:35:20 +08:00
|
|
|
rc = txn_commit( ltid, 0 );
|
|
|
|
ltid = NULL;
|
|
|
|
}
|
2000-09-26 08:43:00 +08:00
|
|
|
|
|
|
|
if( rc != 0 ) {
|
|
|
|
Debug( LDAP_DEBUG_ANY,
|
|
|
|
"=> bdb_next_id: commit failed: %s (%d)\n",
|
|
|
|
db_strerror(rc), rc, 0 );
|
|
|
|
}
|
2000-09-24 07:15:40 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2000-09-26 08:43:00 +08:00
|
|
|
Debug( LDAP_DEBUG_ANY,
|
|
|
|
"=> bdb_next_id: put failed: %s (%d)\n",
|
|
|
|
db_strerror(rc), rc, 0 );
|
2000-09-24 07:15:40 +08:00
|
|
|
done: (void) txn_abort( ltid );
|
2000-09-22 09:40:57 +08:00
|
|
|
}
|
|
|
|
|
2000-09-20 04:13:41 +08:00
|
|
|
return rc;
|
|
|
|
}
|
2001-07-31 12:24:29 +08:00
|
|
|
|
|
|
|
int bdb_last_id( BackendDB *be, DB_TXN *tid )
|
|
|
|
{
|
|
|
|
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
|
|
|
|
int rc;
|
|
|
|
ID kid = NOID;
|
|
|
|
ID id;
|
|
|
|
DBT key, data;
|
|
|
|
|
|
|
|
DBTzero( &key );
|
|
|
|
key.data = (char *) &kid;
|
|
|
|
key.size = sizeof( kid );
|
|
|
|
|
|
|
|
DBTzero( &data );
|
|
|
|
data.data = (char *) &id;
|
|
|
|
data.ulen = sizeof( id );
|
|
|
|
data.flags = DB_DBT_USERMEM;
|
|
|
|
|
|
|
|
/* get existing value for read/modify/write */
|
|
|
|
rc = bdb->bi_nextid->bdi_db->get( bdb->bi_nextid->bdi_db,
|
|
|
|
tid, &key, &data, 0 );
|
|
|
|
|
|
|
|
switch(rc) {
|
|
|
|
case DB_NOTFOUND:
|
|
|
|
id = 0;
|
|
|
|
rc = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 0:
|
|
|
|
if ( data.size != sizeof( id ) ) {
|
|
|
|
Debug( LDAP_DEBUG_ANY,
|
|
|
|
"=> bdb_last_id: get size mismatch: expected %ld, got %ld\n",
|
|
|
|
(long) sizeof( id ), (long) data.size, 0 );
|
|
|
|
rc = -1;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
Debug( LDAP_DEBUG_ANY,
|
|
|
|
"=> bdb_next_id: get failed: %s (%d)\n",
|
|
|
|
db_strerror(rc), rc, 0 );
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
bdb->bi_lastid = id;
|
|
|
|
|
|
|
|
done:
|
|
|
|
return rc;
|
|
|
|
}
|