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fa4e92a70a
This is the initial implementation of the ACK Manager for OpenSSL's QUIC support, with supporting design documentation and tests. Because the ACK Manager also depends on the Statistics Manager, it is also implemented here. The Statistics Manager is quite simple, so this does not amount to a large amount of extra code. Because the ACK Manager depends on a congestion controller, it adds a no-op congestion controller, which uses the previously workshopped congestion control API. Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/18676)
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/*
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* Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef OSSL_QUIC_STATS_H
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# define OSSL_QUIC_STATS_H
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# include <openssl/ssl.h>
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# include "internal/time.h"
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typedef struct ossl_statm_st {
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OSSL_TIME smoothed_rtt, latest_rtt, min_rtt, rtt_variance, max_ack_delay;
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char have_first_sample;
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} OSSL_STATM;
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typedef struct ossl_rtt_info_st {
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/* As defined in RFC 9002. */
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OSSL_TIME smoothed_rtt, latest_rtt, rtt_variance, min_rtt, max_ack_delay;
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} OSSL_RTT_INFO;
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int ossl_statm_init(OSSL_STATM *statm);
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void ossl_statm_destroy(OSSL_STATM *statm);
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void ossl_statm_get_rtt_info(OSSL_STATM *statm, OSSL_RTT_INFO *rtt_info);
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void ossl_statm_update_rtt(OSSL_STATM *statm,
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OSSL_TIME ack_delay,
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OSSL_TIME override_latest_rtt);
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void ossl_statm_set_max_ack_delay(OSSL_STATM *statm, OSSL_TIME max_ack_delay);
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#endif
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