1 /* 2 * Copyright 2022 The OpenSSL Project Authors. All Rights Reserved. 3 * 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 8 */ 9 10 #ifndef OSSL_QUIC_STATS_H 11 # define OSSL_QUIC_STATS_H 12 13 # include <openssl/ssl.h> 14 # include "internal/time.h" 15 16 typedef struct ossl_statm_st { 17 OSSL_TIME smoothed_rtt, latest_rtt, min_rtt, rtt_variance, max_ack_delay; 18 char have_first_sample; 19 } OSSL_STATM; 20 21 typedef struct ossl_rtt_info_st { 22 /* As defined in RFC 9002. */ 23 OSSL_TIME smoothed_rtt, latest_rtt, rtt_variance, min_rtt, max_ack_delay; 24 } OSSL_RTT_INFO; 25 26 int ossl_statm_init(OSSL_STATM *statm); 27 28 void ossl_statm_destroy(OSSL_STATM *statm); 29 30 void ossl_statm_get_rtt_info(OSSL_STATM *statm, OSSL_RTT_INFO *rtt_info); 31 32 void ossl_statm_update_rtt(OSSL_STATM *statm, 33 OSSL_TIME ack_delay, 34 OSSL_TIME override_latest_rtt); 35 36 void ossl_statm_set_max_ack_delay(OSSL_STATM *statm, OSSL_TIME max_ack_delay); 37 38 #endif 39
