Mercurial > hg > nginx
view src/http/v3/ngx_http_v3.h @ 8338:0f9e9786b90d quic
Added primitive flow control mechanisms.
+ MAX_STREAM_DATA frame is sent when recv() is performed on stream
The new value is a sum of total bytes received by stream + free
space in a buffer;
The sending of MAX_STREM_DATA frame in response to STREAM_DATA_BLOCKED
frame is adjusted to follow the same logic as above.
+ MAX_DATA frame is sent when total amount of received data is 2x
of current limit. The limit is doubled.
+ Default values of transport parameters are adjusted to more meaningful
values:
initial stream limits are set to quic buffer size instead of
unrealistically small 255.
initial max data is decreased to 16 buffer sizes, in an assumption that
this is enough for a relatively short connection, instead of randomly
chosen big number.
All this allows to initiate a stable flow of streams that does not block
on stream/connection limits (tested with FF 77.0a1 and 100K requests)
author | Vladimir Homutov <vl@nginx.com> |
---|---|
date | Wed, 15 Apr 2020 18:54:03 +0300 |
parents | 5649079a41f4 |
children | d2759e4cc437 |
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/* * Copyright (C) Roman Arutyunyan * Copyright (C) Nginx, Inc. */ #ifndef _NGX_HTTP_V3_H_INCLUDED_ #define _NGX_HTTP_V3_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> #include <ngx_http_v3_parse.h> #define NGX_HTTP_V3_ALPN(s) NGX_HTTP_V3_ALPN_DRAFT(s) #define NGX_HTTP_V3_ALPN_DRAFT(s) "\x05h3-" #s #define NGX_HTTP_V3_ALPN_ADVERTISE NGX_HTTP_V3_ALPN(NGX_QUIC_DRAFT_VERSION) #define NGX_HTTP_V3_VARLEN_INT_LEN 4 #define NGX_HTTP_V3_PREFIX_INT_LEN 11 #define NGX_HTTP_V3_STREAM_CONTROL 0x00 #define NGX_HTTP_V3_STREAM_PUSH 0x01 #define NGX_HTTP_V3_STREAM_ENCODER 0x02 #define NGX_HTTP_V3_STREAM_DECODER 0x03 #define NGX_HTTP_V3_FRAME_DATA 0x00 #define NGX_HTTP_V3_FRAME_HEADERS 0x01 #define NGX_HTTP_V3_FRAME_CANCEL_PUSH 0x03 #define NGX_HTTP_V3_FRAME_SETTINGS 0x04 #define NGX_HTTP_V3_FRAME_PUSH_PROMISE 0x05 #define NGX_HTTP_V3_FRAME_GOAWAY 0x07 #define NGX_HTTP_V3_FRAME_MAX_PUSH_ID 0x0d #define NGX_HTTP_V3_PARAM_MAX_TABLE_CAPACITY 0x01 #define NGX_HTTP_V3_PARAM_MAX_HEADER_LIST_SIZE 0x06 #define NGX_HTTP_V3_PARAM_BLOCKED_STREAMS 0x07 #define NGX_HTTP_V3_STREAM_CLIENT_CONTROL 0 #define NGX_HTTP_V3_STREAM_SERVER_CONTROL 1 #define NGX_HTTP_V3_STREAM_CLIENT_ENCODER 2 #define NGX_HTTP_V3_STREAM_SERVER_ENCODER 3 #define NGX_HTTP_V3_STREAM_CLIENT_DECODER 4 #define NGX_HTTP_V3_STREAM_SERVER_DECODER 5 #define NGX_HTTP_V3_MAX_KNOWN_STREAM 6 typedef struct { ngx_quic_tp_t quic; } ngx_http_v3_srv_conf_t; typedef struct { ngx_http_connection_t hc; ngx_array_t *dynamic; ngx_connection_t *known_streams[NGX_HTTP_V3_MAX_KNOWN_STREAM]; } ngx_http_v3_connection_t; typedef struct { ngx_str_t name; ngx_str_t value; } ngx_http_v3_header_t; ngx_int_t ngx_http_v3_parse_header(ngx_http_request_t *r, ngx_buf_t *b); ngx_int_t ngx_http_v3_parse_request_body(ngx_http_request_t *r, ngx_buf_t *b, ngx_http_chunked_t *ctx); ngx_chain_t *ngx_http_v3_create_header(ngx_http_request_t *r); ngx_chain_t *ngx_http_v3_create_trailers(ngx_http_request_t *r); uintptr_t ngx_http_v3_encode_varlen_int(u_char *p, uint64_t value); uintptr_t ngx_http_v3_encode_prefix_int(u_char *p, uint64_t value, ngx_uint_t prefix); void ngx_http_v3_handle_client_uni_stream(ngx_connection_t *c); ngx_int_t ngx_http_v3_ref_insert(ngx_connection_t *c, ngx_uint_t dynamic, ngx_uint_t index, ngx_str_t *value); ngx_int_t ngx_http_v3_insert(ngx_connection_t *c, ngx_str_t *name, ngx_str_t *value); ngx_int_t ngx_http_v3_set_capacity(ngx_connection_t *c, ngx_uint_t capacity); ngx_int_t ngx_http_v3_duplicate(ngx_connection_t *c, ngx_uint_t index); ngx_int_t ngx_http_v3_ack_header(ngx_connection_t *c, ngx_uint_t stream_id); ngx_int_t ngx_http_v3_cancel_stream(ngx_connection_t *c, ngx_uint_t stream_id); ngx_int_t ngx_http_v3_inc_insert_count(ngx_connection_t *c, ngx_uint_t inc); ngx_http_v3_header_t *ngx_http_v3_lookup_table(ngx_connection_t *c, ngx_uint_t dynamic, ngx_uint_t index); ngx_int_t ngx_http_v3_check_insert_count(ngx_connection_t *c, ngx_uint_t insert_count); ngx_int_t ngx_http_v3_set_param(ngx_connection_t *c, uint64_t id, uint64_t value); ngx_int_t ngx_http_v3_client_ref_insert(ngx_connection_t *c, ngx_uint_t dynamic, ngx_uint_t index, ngx_str_t *value); ngx_int_t ngx_http_v3_client_insert(ngx_connection_t *c, ngx_str_t *name, ngx_str_t *value); ngx_int_t ngx_http_v3_client_set_capacity(ngx_connection_t *c, ngx_uint_t capacity); ngx_int_t ngx_http_v3_client_duplicate(ngx_connection_t *c, ngx_uint_t index); ngx_int_t ngx_http_v3_client_ack_header(ngx_connection_t *c, ngx_uint_t stream_id); ngx_int_t ngx_http_v3_client_cancel_stream(ngx_connection_t *c, ngx_uint_t stream_id); ngx_int_t ngx_http_v3_client_inc_insert_count(ngx_connection_t *c, ngx_uint_t inc); extern ngx_module_t ngx_http_v3_module; #endif /* _NGX_HTTP_V3_H_INCLUDED_ */