lsquic_rtt.h revision 5392f7a3 
1/* Copyright (c) 2017 - 2019 LiteSpeed Technologies Inc.  See LICENSE. */
2/*
3 * lsquic_rtt.h -- RTT calculation
4 */
5
6#ifndef LSQUIC_RTT_H
7#define LSQUIC_RTT_H 1
8
9
10/* This struct is initialized by setting it to zero */
11struct lsquic_rtt_stats {
12    lsquic_time_t   srtt;
13    lsquic_time_t   rttvar;
14    lsquic_time_t   min_rtt;
15};
16
17
18void
19lsquic_rtt_stats_update (struct lsquic_rtt_stats *, lsquic_time_t send_delta,
20                                                    lsquic_time_t lack_delta);
21
22
23#define lsquic_rtt_stats_get_srtt(stats) ((stats)->srtt)
24
25#define lsquic_rtt_stats_get_rttvar(stats) ((stats)->rttvar)
26
27#define lsquic_rtt_stats_get_min_rtt(stats) (+(stats)->min_rtt)
28
29#endif
30