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55 lines
1.6 KiB
55 lines
1.6 KiB
5 months ago
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/*
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* include/types/quic_loss.h
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* This file contains definitions for QUIC loss detection.
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*
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* Copyright 2019 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _TYPES_QUIC_LOSS_H
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#define _TYPES_QUIC_LOSS_H
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#ifdef USE_QUIC
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#ifndef USE_OPENSSL
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#error "Must define USE_OPENSSL"
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#endif
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#include <stdint.h>
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/* Maximum reordering in packets. */
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#define QUIC_LOSS_PACKET_THRESHOLD 3
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#define QUIC_TIMER_GRANULARITY 1U /* 1ms */
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#define QUIC_LOSS_INITIAL_RTT 333U /* 333ms */
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/* Note that all the unit of variables for QUIC LOSS dectections
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* is the tick.
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*/
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struct quic_loss {
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/* The most recent RTT measurement. */
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unsigned int latest_rtt;
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/* Smoothed RTT << 4*/
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unsigned int srtt;
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/* RTT variation << 2 */
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unsigned int rtt_var;
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/* Minimum RTT. */
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unsigned int rtt_min;
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/* Number of NACKed sent PTO. */
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unsigned int pto_count;
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};
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#endif /* USE_QUIC */
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#endif /* _TYPES_QUIC_LOSS_H */
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