2 * Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #ifndef OSSL_QUIC_STATS_H
11 # define OSSL_QUIC_STATS_H
13 # include <openssl/ssl.h>
14 # include "internal/time.h"
16 # ifndef OPENSSL_NO_QUIC
18 typedef struct ossl_statm_st {
19 OSSL_TIME smoothed_rtt, latest_rtt, min_rtt, rtt_variance, max_ack_delay;
20 char have_first_sample;
23 typedef struct ossl_rtt_info_st {
24 /* As defined in RFC 9002. */
25 OSSL_TIME smoothed_rtt, latest_rtt, rtt_variance, min_rtt, max_ack_delay;
28 int ossl_statm_init(OSSL_STATM *statm);
30 void ossl_statm_destroy(OSSL_STATM *statm);
32 void ossl_statm_get_rtt_info(OSSL_STATM *statm, OSSL_RTT_INFO *rtt_info);
34 void ossl_statm_update_rtt(OSSL_STATM *statm,
36 OSSL_TIME override_latest_rtt);
38 void ossl_statm_set_max_ack_delay(OSSL_STATM *statm, OSSL_TIME max_ack_delay);