]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/back-bdb/filterindex.c
Component Indexing support for BDB
[openldap] / servers / slapd / back-bdb / filterindex.c
index 62cd9b7f18bf60dbbdd96245ea9cf6b0c0fa6352..d1ab50e2eabd86d8768fe79114777c066f2afd7d 100644 (file)
@@ -57,6 +57,16 @@ static int list_candidates(
        ID *tmp,
        ID *stack );
 
+#ifdef LDAP_COMP_MATCH
+int
+ext_candidates(
+        Operation *op,
+        MatchingRuleAssertion *mra,
+        ID *ids,
+        ID *tmp,
+        ID *stack);
+#endif
+
 int
 bdb_filter_candidates(
        Operation *op,
@@ -147,7 +157,12 @@ bdb_filter_candidates(
                rc = list_candidates( op, 
                        f->f_or, LDAP_FILTER_OR, ids, tmp, stack );
                break;
-
+#ifdef LDAP_COMP_MATCH
+       case LDAP_FILTER_EXT:
+                Debug( LDAP_DEBUG_FILTER, "\tEXT\n", 0, 0, 0 );
+                rc = ext_candidates( op, f->f_mra, ids, tmp, stack );
+                break;
+#endif
        default:
                Debug( LDAP_DEBUG_FILTER, "\tUNKNOWN %lu\n",
                        (unsigned long) f->f_choice, 0, 0 );
@@ -166,6 +181,242 @@ bdb_filter_candidates(
        return rc;
 }
 
+#ifdef LDAP_COMP_MATCH
+static int
+comp_list_candidates(
+       Operation *op,
+       MatchingRuleAssertion* mra,
+       ComponentFilter *flist,
+       int     ftype,
+       ID *ids,
+       ID *tmp,
+       ID *save )
+{
+       struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+       int rc = 0;
+       ComponentFilter *f;
+
+       Debug( LDAP_DEBUG_FILTER, "=> comp_list_candidates 0x%x\n", ftype, 0, 0 );
+       for ( f = flist; f != NULL; f = f->cf_next ) {
+               /* ignore precomputed scopes */
+               if ( f->cf_choice == SLAPD_FILTER_COMPUTED &&
+                    f->cf_result == LDAP_SUCCESS ) {
+                       continue;
+               }
+               BDB_IDL_ZERO( save );
+               rc = comp_candidates( op, mra, f, save, tmp, save+BDB_IDL_UM_SIZE );
+
+               if ( rc != 0 ) {
+                       if ( ftype == LDAP_COMP_FILTER_AND ) {
+                               rc = 0;
+                               continue;
+                       }
+                       break;
+               }
+               
+               if ( ftype == LDAP_COMP_FILTER_AND ) {
+                       if ( f == flist ) {
+                               BDB_IDL_CPY( ids, save );
+                       } else {
+                               bdb_idl_intersection( ids, save );
+                       }
+                       if( BDB_IDL_IS_ZERO( ids ) )
+                               break;
+               } else {
+                       if ( f == flist ) {
+                               BDB_IDL_CPY( ids, save );
+                       } else {
+                               bdb_idl_union( ids, save );
+                       }
+               }
+       }
+
+       if( rc == LDAP_SUCCESS ) {
+               Debug( LDAP_DEBUG_FILTER,
+                       "<= comp_list_candidates: id=%ld first=%ld last=%ld\n",
+                       (long) ids[0],
+                       (long) BDB_IDL_FIRST(ids),
+                       (long) BDB_IDL_LAST(ids) );
+
+       } else {
+               Debug( LDAP_DEBUG_FILTER,
+                       "<= comp_list_candidates: undefined rc=%d\n",
+                       rc, 0, 0 );
+       }
+
+       return rc;
+}
+
+int
+comp_equality_candidates (
+        Operation *op,
+        MatchingRuleAssertion *mra,
+       ComponentAssertion *ca,
+        ID *ids,
+        ID *tmp,
+        ID *stack)
+{
+       struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+        DB      *db;
+        int i;
+        int rc;
+        slap_mask_t mask;
+        struct berval prefix = {0, NULL};
+        struct berval *keys = NULL;
+        MatchingRule *mr = mra->ma_rule;
+        Syntax *sat_syntax;
+       ComponentReference* cr_list, *cr;
+
+        BDB_IDL_ALL( bdb, ids );
+
+       bdb_attr_comp_ref ( op->o_bd->be_private, mra->ma_desc, &cr_list );
+       if( !cr_list || !ca->ca_comp_ref )
+               return 0;
+       /* find a component reference to be indexed */
+       sat_syntax = ca->ca_ma_rule->smr_syntax;
+       for ( cr = cr_list ; cr ; cr = cr->cr_next ) {
+               if ( cr->cr_string.bv_len == ca->ca_comp_ref->cr_string.bv_len &&
+                       strncmp( cr->cr_string.bv_val, ca->ca_comp_ref->cr_string.bv_val,cr->cr_string.bv_len ) == 0 )
+                       break;
+       }
+       
+       if ( !cr )
+               return 0;
+
+        rc = bdb_index_param( op->o_bd, mra->ma_desc, LDAP_FILTER_EQUALITY,
+                &db, &mask, &prefix );
+
+        if( rc != LDAP_SUCCESS ) {
+                return 0;
+        }
+        if ( db == NULL ) {
+                return 0;
+        }
+
+        if( !mr ) {
+                return 0;
+        }
+
+        if( !mr->smr_filter ) {
+                return 0;
+        }
+
+       rc = (ca->ca_ma_rule->smr_filter)(
+                LDAP_FILTER_EQUALITY,
+                cr->cr_indexmask,
+                sat_syntax,
+                ca->ca_ma_rule,
+                &prefix,
+                &ca->ca_ma_value,
+                &keys, op->o_tmpmemctx );
+
+        if( rc != LDAP_SUCCESS ) {
+                return 0;
+        }
+
+        if( keys == NULL ) {
+                return 0;
+        }
+        for ( i= 0; keys[i].bv_val != NULL; i++ ) {
+                rc = bdb_key_read( op->o_bd, db, NULL, &keys[i], tmp, NULL, 0 );
+
+                if( rc == DB_NOTFOUND ) {
+                        BDB_IDL_ZERO( ids );
+                        rc = 0;
+                        break;
+                } else if( rc != LDAP_SUCCESS ) {
+                        break;
+                }
+
+                if( BDB_IDL_IS_ZERO( tmp ) ) {
+                        BDB_IDL_ZERO( ids );
+                        break;
+                }
+
+                if ( i == 0 ) {
+                        BDB_IDL_CPY( ids, tmp );
+                } else {
+                        bdb_idl_intersection( ids, tmp );
+                }
+
+                if( BDB_IDL_IS_ZERO( ids ) )
+                        break;
+        }
+        ber_bvarray_free_x( keys, op->o_tmpmemctx );
+
+        Debug( LDAP_DEBUG_TRACE,
+                "<= comp_equality_candidates: id=%ld, first=%ld, last=%ld\n",
+                (long) ids[0],
+                (long) BDB_IDL_FIRST(ids),
+                (long) BDB_IDL_LAST(ids) );
+        return( rc );
+}
+
+int
+comp_candidates (
+       Operation *op,
+       MatchingRuleAssertion *mra,
+       ComponentFilter *f,
+       ID *ids,
+       ID *tmp,
+       ID *stack)
+{
+       int     rc;
+
+       if ( !f ) return LDAP_PROTOCOL_ERROR;
+
+       Debug( LDAP_DEBUG_FILTER, "comp_candidates\n", 0, 0, 0 );
+       switch ( f->cf_choice ) {
+       case SLAPD_FILTER_COMPUTED:
+               rc = f->cf_result;
+               break;
+       case LDAP_COMP_FILTER_AND:
+               rc = comp_list_candidates( op, mra, f->cf_and, LDAP_COMP_FILTER_AND, ids, tmp, stack );
+               break;
+       case LDAP_COMP_FILTER_OR:
+               rc = comp_list_candidates( op, mra, f->cf_or, LDAP_COMP_FILTER_OR, ids, tmp, stack );
+               break;
+       case LDAP_COMP_FILTER_NOT:
+               /* No component indexing supported for NOT filter */
+               Debug( LDAP_DEBUG_FILTER, "\tComponent NOT\n", 0, 0, 0 );
+               {
+                       struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+                       BDB_IDL_ALL( bdb, ids );
+               }
+               rc = LDAP_PROTOCOL_ERROR;
+               break;
+       case LDAP_COMP_FILTER_ITEM:
+               rc = comp_equality_candidates( op, mra, f->cf_ca, ids, tmp, stack );
+               break;
+       default:
+               {
+                       struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+                       BDB_IDL_ALL( bdb, ids );
+               }
+               rc = LDAP_PROTOCOL_ERROR;
+       }
+
+       return( rc );
+}
+
+int
+ext_candidates(
+        Operation *op,
+        MatchingRuleAssertion *mra,
+        ID *ids,
+        ID *tmp,
+        ID *stack)
+{
+       /*
+        * Currently Only Component Indexing for componentFilterMatch is supported
+        * Indexing for an extensible filter is not supported yet
+        */
+       if ( !mra->ma_cf )
+               return 0;
+       return comp_candidates ( op, mra, mra->ma_cf, ids, tmp, stack);
+}
+#endif
+
 static int
 list_candidates(
        Operation *op,