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view src/http/v3/ngx_http_v3_uni.h @ 8991:3436b441239b quic
HTTP/3: proper uni stream closure detection.
Previously, closure detection for server-initiated uni streams was not properly
implemented. Instead, HTTP/3 code relied on QUIC code posting the read event
and setting rev->error when it needed to close the stream. Then, regular
uni stream read handler called c->recv() and received error, which closed the
stream. This was an ad-hoc solution. If, for whatever reason, the read
handler was called earlier, c->recv() would return 0, which would also close
the stream.
Now server-initiated uni streams have a separate read event handler for
tracking stream closure. The handler calls c->recv(), which normally returns
0, but may return error in case of closure.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Mon, 31 Jan 2022 09:46:30 +0300 |
parents | 18d23ed15eef |
children | f742b1b46901 |
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/* * Copyright (C) Roman Arutyunyan * Copyright (C) Nginx, Inc. */ #ifndef _NGX_HTTP_V3_UNI_H_INCLUDED_ #define _NGX_HTTP_V3_UNI_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> void ngx_http_v3_init_uni_stream(ngx_connection_t *c); ngx_int_t ngx_http_v3_register_uni_stream(ngx_connection_t *c, uint64_t type); ngx_connection_t *ngx_http_v3_create_push_stream(ngx_connection_t *c, uint64_t push_id); ngx_int_t ngx_http_v3_set_max_push_id(ngx_connection_t *c, uint64_t max_push_id); ngx_int_t ngx_http_v3_goaway(ngx_connection_t *c, uint64_t push_id); ngx_int_t ngx_http_v3_cancel_push(ngx_connection_t *c, uint64_t push_id); ngx_int_t ngx_http_v3_cancel_stream(ngx_connection_t *c, ngx_uint_t stream_id); ngx_int_t ngx_http_v3_send_settings(ngx_connection_t *c); ngx_int_t ngx_http_v3_send_goaway(ngx_connection_t *c, uint64_t id); ngx_int_t ngx_http_v3_send_ack_section(ngx_connection_t *c, ngx_uint_t stream_id); ngx_int_t ngx_http_v3_send_cancel_stream(ngx_connection_t *c, ngx_uint_t stream_id); ngx_int_t ngx_http_v3_send_inc_insert_count(ngx_connection_t *c, ngx_uint_t inc); #endif /* _NGX_HTTP_V3_UNI_H_INCLUDED_ */