]> git.sur5r.net Git - openldap/blob - servers/slapd/back-bdb/dn2entry.c
redesign of back-bdb locking :
[openldap] / servers / slapd / back-bdb / dn2entry.c
1 /* dn2entry.c - routines to deal with the dn2id / id2entry glue */
2 /* $OpenLDAP$ */
3 /*
4  * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
6  */
7
8 #include "portable.h"
9
10 #include <stdio.h>
11 #include <ac/string.h>
12
13 #include "back-bdb.h"
14
15 /*
16  * dn2entry - look up dn in the cache/indexes and return the corresponding
17  * entry.
18  */
19
20 int
21 bdb_dn2entry_rw(
22         BackendDB       *be,
23         DB_TXN *tid,
24         struct berval *dn,
25         Entry **e,
26         Entry **matched,
27         int flags,
28         int rw,
29         u_int32_t locker,
30         DB_LOCK *lock )
31 {
32         int rc;
33         ID              id, id2 = 0;
34
35 #ifdef NEW_LOGGING
36         LDAP_LOG (( "db2entry", LDAP_LEVEL_ARGS, "bdb_dn2entry_rw(\"%s\")\n",
37                 dn->bv_val ));
38 #else
39         Debug(LDAP_DEBUG_TRACE, "bdb_dn2entry_rw(\"%s\")\n",
40                 dn->bv_val, 0, 0 );
41 #endif
42
43         *e = NULL;
44
45         if( matched != NULL ) {
46                 *matched = NULL;
47                 rc = bdb_dn2id_matched( be, tid, dn, &id, &id2 );
48         } else {
49                 rc = bdb_dn2id( be, tid, dn, &id );
50         }
51
52         if( rc != 0 ) {
53                 return rc;
54         }
55
56         if( id2 == 0 ) {
57                 rc = bdb_id2entry_rw( be, tid, id, e, rw, locker, lock );
58         } else {
59                 rc = bdb_id2entry_r( be, tid, id2, matched, locker, lock );
60         }
61
62         return rc;
63 }