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/* Copyright (C) 2019 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include "knot/updates/zone-update.h"
typedef enum {
MEASURE_SIZE_NONE = 0, // don't measure size of zone
MEASURE_SIZE_WHOLE, // measure complete size of zone nodes
MEASURE_SIZE_DIFF, // measure difference in size for bi-nodes in zone update
} measure_size_t;
typedef enum {
MEASURE_TTL_NONE = 0, // don't measure max TTL of zone records
MEASURE_TTL_WHOLE, // measure max TTL among all zone records
MEASURE_TTL_DIFF, // check out zone update (bi-nodes) if the max TTL is affected
MEASURE_TTL_LIMIT, // measure max TTL whole; stop if a specific value is reached
} measure_ttl_t;
typedef struct {
measure_size_t how_size;
measure_ttl_t how_ttl;
ssize_t zone_size;
uint32_t max_ttl;
uint32_t rem_max_ttl;
uint32_t limit_max_ttl;
} measure_t;
/*! \brief Initialize measure struct. */
measure_t knot_measure_init(bool measure_whole, bool measure_diff);
/*!
* \brief Measure one node's size and max TTL, collecting into measure struct.
*
* \param node Node to be measured.
* \param m Measure context with instructions and results.
*
* \return False if no more measure is needed.
* \note You will probably ignore the return value.
*/
bool knot_measure_node(zone_node_t *node, measure_t *m);
/*!
* \brief Collect the measured results and update the new zone with measured properties.
*
* \param zone Zone.
* \param m Measured results.
*/
void knot_measure_finish_zone(measure_t *m, zone_contents_t *zone);
/*!
* \brief Collect the measured results and update the new zone with measured properties.
*
* \param update Zone update with the zone.
* \param m Measured results.
*/
void knot_measure_finish_update(measure_t *m, zone_update_t *update);
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