/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#ifndef DNS_ORDER_H
#define DNS_ORDER_H 1
/*! \file dns/order.h */
#include <isc/lang.h>
#include <isc/types.h>
#include <dns/types.h>
ISC_LANG_BEGINDECLS
isc_result_t
dns_order_create(isc_mem_t *mctx, dns_order_t **orderp);
/*%<
* Create a order object.
*
* Requires:
* \li 'orderp' to be non NULL and '*orderp == NULL'.
*\li 'mctx' to be valid.
*
* Returns:
*\li ISC_R_SUCCESS
*\li ISC_R_NOMEMORY
*/
isc_result_t
dns_order_add(dns_order_t *order, dns_name_t *name,
dns_rdatatype_t rdtype, dns_rdataclass_t rdclass,
unsigned int mode);
/*%<
* Add a entry to the end of the order list.
*
* Requires:
* \li 'order' to be valid.
*\li 'name' to be valid.
*\li 'mode' to be one of #DNS_RDATASETATTR_RANDOMIZE,
* #DNS_RDATASETATTR_FIXEDORDER or zero (#DNS_RDATASETATTR_CYCLIC).
*
* Returns:
*\li #ISC_R_SUCCESS
*\li #ISC_R_NOMEMORY
*/
unsigned int
dns_order_find(dns_order_t *order, dns_name_t *name,
dns_rdatatype_t rdtype, dns_rdataclass_t rdclass);
/*%<
* Find the first matching entry on the list.
*
* Requires:
*\li 'order' to be valid.
*\li 'name' to be valid.
*
* Returns the mode set by dns_order_add() or zero.
*/
void
dns_order_attach(dns_order_t *source, dns_order_t **target);
/*%<
* Attach to the 'source' object.
*
* Requires:
* \li 'source' to be valid.
*\li 'target' to be non NULL and '*target == NULL'.
*/
void
dns_order_detach(dns_order_t **orderp);
/*%<
* Detach from the object. Clean up if last this was the last
* reference.
*
* Requires:
*\li '*orderp' to be valid.
*/
ISC_LANG_ENDDECLS
#endif /* DNS_ORDER_H */
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