external/bsd/openldap/dist/servers/slapd/back-bdb/key.c

   1 /* index.c - routines for dealing with attribute indexes */
   2 /* $OpenLDAP: pkg/ldap/servers/slapd/back-bdb/key.c,v 1.20.2.3 2008/02/11 23:26:46 kurt Exp $ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2000-2008 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16
  17 #include "portable.h"
  18
  19 #include <stdio.h>
  20
  21 #include <ac/string.h>
  22 #include <ac/socket.h>
  23
  24 #include "slap.h"
  25 #include "back-bdb.h"
  26 #include "idl.h"
  27
  28 /* read a key */
  29 int
  30 bdb_key_read(
  31         Backend *be,
  32         DB *db,
  33         BDB_LOCKER locker,
  34         struct berval *k,
  35         ID *ids,
  36         DBC **saved_cursor,
  37         int get_flag
  38 )
  39 {
  40         int rc;
  41         DBT key;
  42
  43         Debug( LDAP_DEBUG_TRACE, "=> key_read\n", 0, 0, 0 );
  44
  45         DBTzero( &key );
  46         bv2DBT(k,&key);
  47         key.ulen = key.size;
  48         key.flags = DB_DBT_USERMEM;
  49
  50         rc = bdb_idl_fetch_key( be, db, locker, &key, ids, saved_cursor, get_flag );
  51
  52         if( rc != LDAP_SUCCESS ) {
  53                 Debug( LDAP_DEBUG_TRACE, "<= bdb_index_read: failed (%d)\n",
  54                         rc, 0, 0 );
  55         } else {
  56                 Debug( LDAP_DEBUG_TRACE, "<= bdb_index_read %ld candidates\n",
  57                         (long) BDB_IDL_N(ids), 0, 0 );
  58         }
  59
  60         return rc;
  61 }
  62
  63 /* Add or remove stuff from index files */
  64 int
  65 bdb_key_change(
  66         Backend *be,
  67         DB *db,
  68         DB_TXN *txn,
  69         struct berval *k,
  70         ID id,
  71         int op
  72 )
  73 {
  74         int     rc;
  75         DBT     key;
  76
  77         Debug( LDAP_DEBUG_TRACE, "=> key_change(%s,%lx)\n",
  78                 op == SLAP_INDEX_ADD_OP ? "ADD":"DELETE", (long) id, 0 );
  79
  80         DBTzero( &key );
  81         bv2DBT(k,&key);
  82         key.ulen = key.size;
  83         key.flags = DB_DBT_USERMEM;
  84
  85         if (op == SLAP_INDEX_ADD_OP) {
  86                 /* Add values */
  87
  88 #ifdef BDB_TOOL_IDL_CACHING
  89                 if ( slapMode & SLAP_TOOL_QUICK )
  90                         rc = bdb_tool_idl_add( be, db, txn, &key, id );
  91                 else
  92 #endif
  93                         rc = bdb_idl_insert_key( be, db, txn, &key, id );
  94                 if ( rc == DB_KEYEXIST ) rc = 0;
  95         } else {
  96                 /* Delete values */
  97                 rc = bdb_idl_delete_key( be, db, txn, &key, id );
  98                 if ( rc == DB_NOTFOUND ) rc = 0;
  99         }
 100
 101         Debug( LDAP_DEBUG_TRACE, "<= key_change %d\n", rc, 0, 0 );
 102
 103         return rc;
 104 }