view src/event/quic/ngx_event_quic_ack.h @ 8822:ad046179eb91 quic

QUIC: handle EAGAIN properly on UDP sockets. Previously, the error was ignored leading to unnecessary retransmits. Now, unsent frames are returned into output queue, state is reset, and timer is started for the next send attempt.
author Vladimir Homutov <vl@nginx.com>
date Wed, 28 Jul 2021 17:23:18 +0300
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_ */