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view src/event/quic/ngx_event_quic_socket.h @ 8811:bb5152ed045b quic

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QUIC: added support for segmentation offloading. To improve output performance, UDP segmentation offloading is used if available. If there is a significant amount of data in an output queue and path is verified, QUIC packets are not sent one-by-one, but instead are collected in a buffer, which is then passed to kernel in a single sendmsg call, using UDP GSO. Such method greatly decreases number of system calls and thus system load.
author Vladimir Homutov <vl@nginx.com>
date Thu, 15 Jul 2021 14:22:00 +0300
parents 4117aa7fa38e
children b09f055daa4e
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/*
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_EVENT_QUIC_SOCKET_H_INCLUDED_
#define _NGX_EVENT_QUIC_SOCKET_H_INCLUDED_


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


ngx_int_t ngx_quic_open_sockets(ngx_connection_t *c,
    ngx_quic_connection_t *qc, ngx_quic_header_t *pkt);
void ngx_quic_close_sockets(ngx_connection_t *c);

ngx_quic_socket_t *ngx_quic_alloc_socket(ngx_connection_t *c,
    ngx_quic_connection_t *qc);
ngx_int_t ngx_quic_listen(ngx_connection_t *c, ngx_quic_connection_t *qc,
    ngx_quic_socket_t *qsock);
void ngx_quic_close_socket(ngx_connection_t *c, ngx_quic_socket_t *qsock);

void ngx_quic_connect(ngx_connection_t *c, ngx_quic_socket_t *qsock,
    ngx_quic_path_t *path, ngx_quic_client_id_t *cid);

ngx_quic_socket_t *ngx_quic_find_socket(ngx_connection_t *c, uint64_t seqnum);
ngx_quic_socket_t *ngx_quic_get_unconnected_socket(ngx_connection_t *c);


#endif /* _NGX_EVENT_QUIC_SOCKET_H_INCLUDED_ */