/*

 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")

 *

 * SPDX-License-Identifier: MPL-2.0

 *

 * 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 https://mozilla.org/MPL/2.0/.

 *

 * See the COPYRIGHT file distributed with this work for additional

 * information regarding copyright ownership.

 */

/*! \file */

#include <stdbool.h>

#include <isc/util.h>

#include <dns/dbiterator.h>

#include <dns/name.h>

void

dns__dbiterator_destroy(dns_dbiterator_t **iteratorp DNS__DB_FLARG) {

  REQUIRE(iteratorp != NULL);

  REQUIRE(DNS_DBITERATOR_VALID(*iteratorp));

  (*iteratorp)->methods->destroy(iteratorp DNS__DB_FLARG_PASS);

  ENSURE(*iteratorp == NULL);

}

isc_result_t

dns__dbiterator_first(dns_dbiterator_t *iterator DNS__DB_FLARG) {

  REQUIRE(DNS_DBITERATOR_VALID(iterator));

  isc_result_t result =

    iterator->methods->first(iterator DNS__DB_FLARG_PASS);

  ENSURE(result == ISC_R_SUCCESS || result == ISC_R_NOMORE);

  return result;

}

isc_result_t

dns__dbiterator_last(dns_dbiterator_t *iterator DNS__DB_FLARG) {

  REQUIRE(DNS_DBITERATOR_VALID(iterator));

  isc_result_t result =

    iterator->methods->last(iterator DNS__DB_FLARG_PASS);

  ENSURE(result == ISC_R_SUCCESS || result == ISC_R_NOMORE);

  return result;

}

isc_result_t

dns__dbiterator_seek(dns_dbiterator_t *iterator,

         const dns_name_t *name DNS__DB_FLARG) {

  REQUIRE(DNS_DBITERATOR_VALID(iterator));

  return iterator->methods->seek(iterator, name DNS__DB_FLARG_PASS);

}

isc_result_t

dns__dbiterator_prev(dns_dbiterator_t *iterator DNS__DB_FLARG) {

  REQUIRE(DNS_DBITERATOR_VALID(iterator));

  isc_result_t result =

    iterator->methods->prev(iterator DNS__DB_FLARG_PASS);

  ENSURE(result == ISC_R_SUCCESS || result == ISC_R_NOMORE);

  return result;

}

isc_result_t

dns__dbiterator_next(dns_dbiterator_t *iterator DNS__DB_FLARG) {

  REQUIRE(DNS_DBITERATOR_VALID(iterator));

  isc_result_t result =

    iterator->methods->next(iterator DNS__DB_FLARG_PASS);

  ENSURE(result == ISC_R_SUCCESS || result == ISC_R_NOMORE);

  return result;

}

isc_result_t

dns__dbiterator_current(dns_dbiterator_t *iterator, dns_dbnode_t **nodep,

      dns_name_t *name DNS__DB_FLARG) {

  REQUIRE(DNS_DBITERATOR_VALID(iterator));

  REQUIRE(nodep != NULL && *nodep == NULL);

  REQUIRE(name == NULL || dns_name_hasbuffer(name));

  return iterator->methods->current(iterator, nodep,

            name DNS__DB_FLARG_PASS);

}

isc_result_t

dns_dbiterator_pause(dns_dbiterator_t *iterator) {

  REQUIRE(DNS_DBITERATOR_VALID(iterator));

  return iterator->methods->pause(iterator);

}

isc_result_t

dns_dbiterator_origin(dns_dbiterator_t *iterator, dns_name_t *name) {

  REQUIRE(DNS_DBITERATOR_VALID(iterator));

  REQUIRE(iterator->relative_names);

  REQUIRE(dns_name_hasbuffer(name));

  return iterator->methods->origin(iterator, name);

}