view src/event/quic/ngx_event_quic_streams.h @ 8908:e8cbbfabe547 quic

QUIC: update stream flow control credit on STREAM_DATA_BLOCKED. Previously, after receiving STREAM_DATA_BLOCKED, current flow control limit was sent to client. Now, if the limit can be updated to the full window size, it is updated and the new value is sent to client, otherwise nothing is sent. The change lets client update flow control credit on demand. Also, it saves traffic by not sending MAX_STREAM_DATA with the same value twice.
author Roman Arutyunyan <arut@nginx.com>
date Wed, 17 Nov 2021 23:07:38 +0300
parents 66b4ff373dd9
children d041b8d6ab0b
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/*
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_EVENT_QUIC_STREAMS_H_INCLUDED_
#define _NGX_EVENT_QUIC_STREAMS_H_INCLUDED_


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


ngx_int_t ngx_quic_handle_stream_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_frame_t *frame);
void ngx_quic_handle_stream_ack(ngx_connection_t *c,
    ngx_quic_frame_t *f);
ngx_int_t ngx_quic_handle_max_data_frame(ngx_connection_t *c,
    ngx_quic_max_data_frame_t *f);
ngx_int_t ngx_quic_handle_streams_blocked_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_streams_blocked_frame_t *f);
ngx_int_t ngx_quic_handle_stream_data_blocked_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_stream_data_blocked_frame_t *f);
ngx_int_t ngx_quic_handle_max_stream_data_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_max_stream_data_frame_t *f);
ngx_int_t ngx_quic_handle_reset_stream_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_reset_stream_frame_t *f);
ngx_int_t ngx_quic_handle_stop_sending_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_stop_sending_frame_t *f);
ngx_int_t ngx_quic_handle_max_streams_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_max_streams_frame_t *f);

ngx_int_t ngx_quic_init_streams(ngx_connection_t *c);
void ngx_quic_rbtree_insert_stream(ngx_rbtree_node_t *temp,
    ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
ngx_quic_stream_t *ngx_quic_find_stream(ngx_rbtree_t *rbtree,
    uint64_t id);
ngx_int_t ngx_quic_close_streams(ngx_connection_t *c,
    ngx_quic_connection_t *qc);

#endif /* _NGX_EVENT_QUIC_STREAMS_H_INCLUDED_ */