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93 lines
2.1 KiB
C
93 lines
2.1 KiB
C
/* OpenLDAP WiredTiger backend */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 2002-2020 The OpenLDAP Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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/* ACKNOWLEDGEMENTS:
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* This work was developed by HAMANO Tsukasa <hamano@osstech.co.jp>
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* based on back-bdb for inclusion in OpenLDAP Software.
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* WiredTiger is a product of MongoDB Inc.
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
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#include "back-wt.h"
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#include "config.h"
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int wt_next_id(BackendDB *be, ID *out){
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struct wt_info *wi = (struct wt_info *) be->be_private;
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*out = __sync_add_and_fetch(&wi->wi_lastid, 1);
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return 0;
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}
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int wt_last_id( BackendDB *be, WT_SESSION *session, ID *out )
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{
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WT_CURSOR *cursor;
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int rc;
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uint64_t id;
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rc = session->open_cursor(session, WT_TABLE_ID2ENTRY, NULL, NULL, &cursor);
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if(rc){
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Debug( LDAP_DEBUG_ANY,
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LDAP_XSTRING(wt_last_id)
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": open_cursor failed: %s (%d)\n",
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wiredtiger_strerror(rc), rc );
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return rc;
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}
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rc = cursor->prev(cursor);
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switch(rc) {
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case 0:
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rc = cursor->get_key(cursor, &id);
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if ( rc ) {
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Debug( LDAP_DEBUG_ANY,
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LDAP_XSTRING(wt_last_id)
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": get_key failed: %s (%d)\n",
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wiredtiger_strerror(rc), rc );
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return rc;
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}
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*out = id;
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break;
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case WT_NOTFOUND:
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/* no entry */
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*out = 0;
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break;
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default:
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Debug( LDAP_DEBUG_ANY,
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LDAP_XSTRING(wt_last_id)
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": prev failed: %s (%d)\n",
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wiredtiger_strerror(rc), rc );
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}
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rc = cursor->close(cursor);
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if ( rc ) {
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Debug( LDAP_DEBUG_ANY,
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LDAP_XSTRING(wt_last_id)
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": close failed: %s (%d)\n",
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wiredtiger_strerror(rc), rc );
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return rc;
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}
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return 0;
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}
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/*
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* Local variables:
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* indent-tabs-mode: t
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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*/
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