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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"
#include "idl.h"
/* read a key */
int
wt_key_read(
Backend *be,
WT_CURSOR *cursor,
struct berval *bkey,
ID *ids,
WT_CURSOR **saved_cursor,
int get_flag
)
{
int rc;
WT_ITEM key;
int exact;
WT_ITEM key2;
ID id;
int comp;
long scanned = 0;
Debug( LDAP_DEBUG_TRACE, "=> key_read\n" );
WT_IDL_ZERO(ids);
bv2ITEM(bkey, &key);
cursor->set_key(cursor, &key, 0);
rc = cursor->search_near(cursor, &exact);
switch( rc ){
case 0:
break;
case WT_NOTFOUND:
rc = LDAP_SUCCESS;
goto done;
default:
Debug( LDAP_DEBUG_ANY,
"wt_key_read: search_near failed: %s (%d)\n",
wiredtiger_strerror(rc), rc);
goto done;
}
do {
scanned++;
rc = cursor->get_key(cursor, &key2, &id);
if( rc ){
Debug( LDAP_DEBUG_ANY,
"wt_key_read: get_key failed: %s (%d)\n",
wiredtiger_strerror(rc), rc );
break;
}
comp = 0;
if (key.size != key2.size ||
(comp = memcmp(key2.data, key.data, key.size))) {
if(comp > 0){
break;
}
if(exact < 0){
rc = cursor->next(cursor);
if (rc) {
break;
}else{
continue;
}
}
break;
}
exact = 0;
wt_idl_append_one(ids, id);
rc = cursor->next(cursor);
} while(rc == 0);
if ( rc == WT_NOTFOUND && exact == 0 ) {
rc = LDAP_SUCCESS;
}
done:
if( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE, "<= wt_key_read: failed (%d) %ld scanned\n",
rc, scanned );
} else {
Debug( LDAP_DEBUG_TRACE, "<= wt_key_read %ld candidates %ld scanned\n",
(long) WT_IDL_N(ids), scanned );
}
return rc;
}
/* Add or remove stuff from index files */
int
wt_key_change(
Backend *be,
WT_CURSOR *cursor,
struct berval *k,
ID id,
int op
)
{
int rc;
WT_ITEM item;
Debug( LDAP_DEBUG_TRACE, "=> key_change(%s,%lx)\n",
op == SLAP_INDEX_ADD_OP ? "ADD":"DELETE", (long) id );
bv2ITEM(k, &item);
cursor->set_key(cursor, &item, id);
cursor->set_value(cursor, NULL);
if (op == SLAP_INDEX_ADD_OP) {
/* Add values */
rc = cursor->insert(cursor);
if ( rc == WT_DUPLICATE_KEY ) rc = 0;
} else {
/* Delete values */
rc = cursor->remove(cursor);
if ( rc == WT_NOTFOUND ) rc = 0;
}
if( rc ) {
if ( rc != WT_ROLLBACK ) {
Debug( LDAP_DEBUG_ANY,
"wt_key_change: error: %s (%d)\n",
wiredtiger_strerror(rc), rc);
}
return rc;
}
Debug( LDAP_DEBUG_TRACE, "<= key_change %d\n", rc );
return rc;
}
/*
* Local variables:
* indent-tabs-mode: t
* tab-width: 4
* c-basic-offset: 4
* End:
*/
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