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/* OpenLDAP WiredTiger backend */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2002-2022 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>.
*/
/* ACKNOWLEDGEMENTS:
* This work was developed by HAMANO Tsukasa <hamano@osstech.co.jp>
* based on back-bdb for inclusion in OpenLDAP Software.
* WiredTiger is a product of MongoDB Inc.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include "back-wt.h"
#include "slap-config.h"
int wt_next_id(BackendDB *be, ID *out){
struct wt_info *wi = (struct wt_info *) be->be_private;
*out = __sync_add_and_fetch(&wi->wi_lastid, 1);
return 0;
}
int wt_last_id( BackendDB *be, WT_SESSION *session, ID *out )
{
WT_CURSOR *cursor;
int rc;
uint64_t id;
rc = session->open_cursor(session, WT_TABLE_ID2ENTRY, NULL, NULL, &cursor);
if(rc){
Debug( LDAP_DEBUG_ANY,
"wt_last_id: open_cursor failed: %s (%d)\n",
wiredtiger_strerror(rc), rc );
return rc;
}
rc = cursor->prev(cursor);
switch(rc) {
case 0:
rc = cursor->get_key(cursor, &id);
if ( rc ) {
Debug( LDAP_DEBUG_ANY,
"wt_last_id: get_key failed: %s (%d)\n",
wiredtiger_strerror(rc), rc );
return rc;
}
*out = id;
break;
case WT_NOTFOUND:
/* no entry */
*out = 0;
break;
default:
Debug( LDAP_DEBUG_ANY,
"wt_last_id: prev failed: %s (%d)\n",
wiredtiger_strerror(rc), rc );
}
rc = cursor->close(cursor);
if ( rc ) {
Debug( LDAP_DEBUG_ANY,
"wt_last_id: close failed: %s (%d)\n",
wiredtiger_strerror(rc), rc );
return rc;
}
return 0;
}
/*
* Local variables:
* indent-tabs-mode: t
* tab-width: 4
* c-basic-offset: 4
* End:
*/
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