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/* Copyright (C) 2022 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 "contrib/time.h"
#include "contrib/ucw/lists.h"
#include "knot/nameserver/log.h"
#include "knot/nameserver/process_query.h"
#include "knot/zone/contents.h"
#include "libknot/packet/pkt.h"
struct xfr_stats {
unsigned messages;
unsigned bytes;
struct timespec begin;
struct timespec end;
};
void xfr_stats_begin(struct xfr_stats *stats);
void xfr_stats_add(struct xfr_stats *stats, unsigned bytes);
void xfr_stats_end(struct xfr_stats *stats);
static inline
void xfr_log_finished(const knot_dname_t *zone, log_operation_t op,
log_direction_t dir, const struct sockaddr *remote,
bool reused, const struct xfr_stats *stats)
{
ns_log(LOG_INFO, zone, op, dir, remote, reused,
"finished, %0.2f seconds, %u messages, %u bytes",
time_diff_ms(&stats->begin, &stats->end) / 1000.0,
stats->messages, stats->bytes);
}
/*!
* \brief Generic transfer processing state.
*/
struct xfr_proc {
list_t nodes; //!< Items to process (ptrnode_t).
zone_contents_t *contents; //!< Processed zone.
struct xfr_stats stats; //!< Packet transfer statistics.
};
/*!
* \brief Generic transfer processing.
*
* \return KNOT_EOK or an error
*/
typedef int (*xfr_put_cb)(knot_pkt_t *pkt, const void *item, struct xfr_proc *xfer);
/*!
* \brief Put all items from xfr_proc.nodes to packet using a callback function.
*
* \note qdata->extra->ext points to struct xfr_proc* (this is xfer-specific context)
*/
int xfr_process_list(knot_pkt_t *pkt, xfr_put_cb put, knotd_qdata_t *qdata);
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