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view src/event/quic/ngx_event_quic_ack.h @ 9139:d7dec2970161

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QUIC: always add ACK frame to the queue head. Previously it was added to the tail as all other frames. However, if the amount of queued data is large, it could delay the delivery of ACK, which could trigger frames retransmissions and slow down the connection.
author Roman Arutyunyan <arut@nginx.com>
date Thu, 10 Aug 2023 20:11:29 +0400
parents 4117aa7fa38e
children
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/*
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_EVENT_QUIC_ACK_H_INCLUDED_
#define _NGX_EVENT_QUIC_ACK_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


ngx_int_t ngx_quic_handle_ack_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_frame_t *f);

void ngx_quic_congestion_ack(ngx_connection_t *c,
    ngx_quic_frame_t *frame);
void ngx_quic_resend_frames(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx);
void ngx_quic_set_lost_timer(ngx_connection_t *c);
void ngx_quic_pto_handler(ngx_event_t *ev);
ngx_msec_t ngx_quic_pto(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx);

ngx_int_t ngx_quic_ack_packet(ngx_connection_t *c,
    ngx_quic_header_t *pkt);
ngx_int_t ngx_quic_generate_ack(ngx_connection_t *c,
    ngx_quic_send_ctx_t *ctx);

#endif /* _NGX_EVENT_QUIC_ACK_H_INCLUDED_ */