Mercurial > hg > nginx
annotate src/event/quic/ngx_event_quic_output.h @ 9196:6c8595b77e66
QUIC: path aware in-flight bytes accounting.
On-packet acknowledgement is made path aware, as per RFC 9000, Section 9.4:
Packets sent on the old path MUST NOT contribute to congestion control
or RTT estimation for the new path.
To make this possible in a single congestion control context, the first packet
to be sent after the new path has been validated, which includes resetting the
congestion controller and RTT estimator, is now remembered in the connection.
Packets sent previously, such as on the old path, are not taken into account.
Note that although the packet number is saved per-connection, the added checks
affect application level packets only. For non-application level packets,
which are only processed prior to the handshake is complete, the remembered
packet number remains set to zero.
| author | Sergey Kandaurov <pluknet@nginx.com> |
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| date | Tue, 12 Dec 2023 20:21:12 +0400 |
| parents | fcec773dd249 |
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| rev | line source |
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2 /* |
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3 * Copyright (C) Nginx, Inc. |
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4 */ |
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7 #ifndef _NGX_EVENT_QUIC_OUTPUT_H_INCLUDED_ |
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8 #define _NGX_EVENT_QUIC_OUTPUT_H_INCLUDED_ |
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11 #include <ngx_config.h> |
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12 #include <ngx_core.h> |
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15 ngx_int_t ngx_quic_output(ngx_connection_t *c); |
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17 ngx_int_t ngx_quic_negotiate_version(ngx_connection_t *c, |
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18 ngx_quic_header_t *inpkt); |
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20 ngx_int_t ngx_quic_send_stateless_reset(ngx_connection_t *c, |
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21 ngx_quic_conf_t *conf, ngx_quic_header_t *pkt); |
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22 ngx_int_t ngx_quic_send_cc(ngx_connection_t *c); |
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23 ngx_int_t ngx_quic_send_early_cc(ngx_connection_t *c, |
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24 ngx_quic_header_t *inpkt, ngx_uint_t err, const char *reason); |
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26 ngx_int_t ngx_quic_send_retry(ngx_connection_t *c, |
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27 ngx_quic_conf_t *conf, ngx_quic_header_t *pkt); |
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28 ngx_int_t ngx_quic_send_new_token(ngx_connection_t *c, ngx_quic_path_t *path); |
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30 ngx_int_t ngx_quic_send_ack(ngx_connection_t *c, |
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31 ngx_quic_send_ctx_t *ctx); |
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32 ngx_int_t ngx_quic_send_ack_range(ngx_connection_t *c, |
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33 ngx_quic_send_ctx_t *ctx, uint64_t smallest, uint64_t largest); |
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34 |
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35 ngx_int_t ngx_quic_frame_sendto(ngx_connection_t *c, ngx_quic_frame_t *frame, |
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36 size_t min, ngx_quic_path_t *path); |
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37 size_t ngx_quic_path_limit(ngx_connection_t *c, ngx_quic_path_t *path, |
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Roman Arutyunyan <arut@nginx.com>
parents:
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38 size_t size); |
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40 #endif /* _NGX_EVENT_QUIC_OUTPUT_H_INCLUDED_ */ |