text: /* index.c - routines for dealing with attribute indexes */
  /* $OpenLDAP: pkg/ldap/servers/slapd/back-bdb/key.c,v 1.7.2.5 2003/03/03 17:10:07 kurt Exp $ */
  /*
   * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   */
  
  #include "portable.h"
  
  #include <stdio.h>
  
  #include <ac/string.h>
  #include <ac/socket.h>
  
  #include "slap.h"
  #include "back-bdb.h"
  #include "idl.h"
  
  /* read a key */
  int
  bdb_key_read(
  	Backend	*be,
  	DB *db,
  	DB_TXN *txn,
  	struct berval *k,
  	ID *ids
  )
  {
  	int rc;
  	DBT key;
  
  #ifdef NEW_LOGGING
  	LDAP_LOG( INDEX, ENTRY, "key_read: enter\n", 0, 0, 0 );
  #else
  	Debug( LDAP_DEBUG_TRACE, "=> key_read\n", 0, 0, 0 );
  #endif
  
  	DBTzero( &key );
  	bv2DBT(k,&key);
  	key.ulen = key.size;
  	key.flags = DB_DBT_USERMEM;
  
  	rc = bdb_idl_fetch_key( be, db, txn, &key, ids );
  
  	if( rc != LDAP_SUCCESS ) {
  #ifdef NEW_LOGGING
  		LDAP_LOG( INDEX, ERR, "bdb_key_read: failed (%d)\n", rc, 0, 0 );
  #else
  		Debug( LDAP_DEBUG_TRACE, "<= bdb_index_read: failed (%d)\n",
  			rc, 0, 0 );
  #endif
  	} else {
  #ifdef NEW_LOGGING
  		LDAP_LOG( INDEX, DETAIL1, 
  			"bdb_key_read: %ld candidates\n", (long)BDB_IDL_N(ids), 0, 0);
  #else
  		Debug( LDAP_DEBUG_TRACE, "<= bdb_index_read %ld candidates\n",
  			(long) BDB_IDL_N(ids), 0, 0 );
  #endif
  	}
  
  	return rc;
  }
  
  /* Add or remove stuff from index files */
  int
  bdb_key_change(
  	Backend *be,
  	DB *db,
  	DB_TXN *txn,
  	struct berval *k,
  	ID id,
  	int op
  )
  {
  	int	rc;
  	DBT	key;
  
  #ifdef NEW_LOGGING
  	LDAP_LOG( INDEX, ENTRY, "key_change: %s ID %lx\n",
  		op == SLAP_INDEX_ADD_OP ? "Add" : "Delete", (long) id, 0 );
  #else
  	Debug( LDAP_DEBUG_TRACE, "=> key_change(%s,%lx)\n",
  		op == SLAP_INDEX_ADD_OP ? "ADD":"DELETE", (long) id, 0 );
  #endif
  
  	DBTzero( &key );
  	bv2DBT(k,&key);
  	key.ulen = key.size;
  	key.flags = DB_DBT_USERMEM;
  
  	if (op == SLAP_INDEX_ADD_OP) {
  		/* Add values */
  		rc = bdb_idl_insert_key( be, db, txn, &key, id );
  		if ( rc == DB_KEYEXIST ) rc = 0;
  	} else {
  		/* Delete values */
  		rc = bdb_idl_delete_key( be, db, txn, &key, id );
  		if ( rc == DB_NOTFOUND ) rc = 0;
  	}
  
  #ifdef NEW_LOGGING
  	LDAP_LOG( INDEX, RESULTS, "key_change: return %d\n", rc, 0, 0 );
  #else
  	Debug( LDAP_DEBUG_TRACE, "<= key_change %d\n", rc, 0, 0 );
  #endif
  
  	return rc;
  }
  