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/*
* Buffered pinging using cyclic arrays.
*/
/*
* Copyright © 2016-2018 The TokTok team.
* Copyright © 2013 Tox project.
* Copyright © 2013 plutooo
*
* This file is part of Tox, the free peer to peer instant messenger.
* This file is donated to the Tox Project.
*
* Tox 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.
*
* Tox 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 Tox. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef C_TOXCORE_TOXCORE_PING_H
#define C_TOXCORE_TOXCORE_PING_H
#include "DHT.h"
#include "network.h"
#include <stdint.h>
#ifndef IP_PORT_DEFINED
#define IP_PORT_DEFINED
typedef struct IP_Port IP_Port;
#endif /* IP_PORT_DEFINED */
#ifndef DHT_DEFINED
#define DHT_DEFINED
typedef struct DHT DHT;
#endif /* DHT_DEFINED */
#ifndef MONO_TIME_DEFINED
#define MONO_TIME_DEFINED
typedef struct Mono_Time Mono_Time;
#endif /* MONO_TIME_DEFINED */
#ifndef PING_DEFINED
#define PING_DEFINED
typedef struct Ping Ping;
#endif /* PING_DEFINED */
Ping *ping_new(const struct Mono_Time *mono_time, DHT *dht);
void ping_kill(Ping *ping);
/** Add nodes to the to_ping list.
* All nodes in this list are pinged every TIME_TOPING seconds
* and are then removed from the list.
* If the list is full the nodes farthest from our public_key are replaced.
* The purpose of this list is to enable quick integration of new nodes into the
* network while preventing amplification attacks.
*
* return 0 if node was added.
* return -1 if node was not added.
*/
int32_t ping_add(Ping *ping, const uint8_t *public_key, struct IP_Port ip_port);
void ping_iterate(Ping *ping);
int32_t ping_send_request(Ping *ping, struct IP_Port ipp, const uint8_t *public_key);
#endif // C_TOXCORE_TOXCORE_PING_H
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