Mercurial > hg > nginx
annotate src/event/quic/ngx_event_quic_ack.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 | 4117aa7fa38e |
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1 |
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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_ACK_H_INCLUDED_ |
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8 #define _NGX_EVENT_QUIC_ACK_H_INCLUDED_ |
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9 |
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11 #include <ngx_config.h> |
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12 #include <ngx_core.h> |
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13 |
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15 ngx_int_t ngx_quic_handle_ack_frame(ngx_connection_t *c, |
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16 ngx_quic_header_t *pkt, ngx_quic_frame_t *f); |
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17 |
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18 void ngx_quic_congestion_ack(ngx_connection_t *c, |
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19 ngx_quic_frame_t *frame); |
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20 void ngx_quic_resend_frames(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx); |
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21 void ngx_quic_set_lost_timer(ngx_connection_t *c); |
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22 void ngx_quic_pto_handler(ngx_event_t *ev); |
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23 ngx_msec_t ngx_quic_pto(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx); |
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24 |
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25 ngx_int_t ngx_quic_ack_packet(ngx_connection_t *c, |
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26 ngx_quic_header_t *pkt); |
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27 ngx_int_t ngx_quic_generate_ack(ngx_connection_t *c, |
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28 ngx_quic_send_ctx_t *ctx); |
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29 |
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30 #endif /* _NGX_EVENT_QUIC_ACK_H_INCLUDED_ */ |