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/*
* Ouroboros - Copyright (C) 2016 - 2021
*
* Congestion avoidance
*
* Dimitri Staessens <dimitri@ouroboros.rocks>
* Sander Vrijders <sander@ouroboros.rocks>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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, write to the Free Software
* Foundation, Inc., http://www.fsf.org/about/contact/.
*/
#ifndef OUROBOROS_IPCPD_UNICAST_CA_H
#define OUROBOROS_IPCPD_UNICAST_CA_H
#include <ouroboros/ipcp.h>
#include <ouroboros/qoscube.h>
#include <stdbool.h>
#include <sys/types.h>
typedef union {
time_t wait;
} ca_wnd_t;
int ca_init(enum pol_cong_avoid ca);
void ca_fini(void);
/* OPS */
void * ca_ctx_create(void);
void ca_ctx_destroy(void * ctx);
ca_wnd_t ca_ctx_update_snd(void * ctx,
size_t len);
bool ca_ctx_update_rcv(void * ctx,
size_t len,
uint8_t ecn,
uint16_t * ece);
void ca_ctx_update_ece(void * ctx,
uint16_t ece);
void ca_wnd_wait(ca_wnd_t wnd);
int ca_calc_ecn(int fd,
uint8_t * ecn,
qoscube_t qc,
size_t len);
ssize_t ca_print_stats(void * ctx,
char * buf,
size_t len);
#endif /* OUROBOROS_IPCPD_UNICAST_CA_H */
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