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annotate src/event/quic/ngx_event_quic_frames.h @ 8906:41caf5410110 quic

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QUIC: reject streams which we could not create. The reasons why a stream may not be created by server currently include hitting worker_connections limit and memory allocation error. Previously in these cases the entire QUIC connection was closed and all its streams were shut down. Now the new stream is rejected and existing streams continue working. To reject an HTTP/3 request stream, RESET_STREAM and STOP_SENDING with H3_REQUEST_REJECTED error code are sent to client. HTTP/3 uni streams and Stream streams are not rejected.
author Roman Arutyunyan <arut@nginx.com>
date Thu, 11 Nov 2021 19:07:00 +0300
parents b3f6ad181df4
children 56dec0d4e5b1
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660c4a2f95f3 QUIC: separate files for frames related processing.
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1
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2 /*
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3 * Copyright (C) Nginx, Inc.
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4 */
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7 #ifndef _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_
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8 #define _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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15 typedef ngx_int_t (*ngx_quic_frame_handler_pt)(ngx_connection_t *c,
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16 ngx_quic_frame_t *frame, void *data);
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19 ngx_quic_frame_t *ngx_quic_alloc_frame(ngx_connection_t *c);
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20 void ngx_quic_free_frame(ngx_connection_t *c, ngx_quic_frame_t *frame);
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21 void ngx_quic_free_frames(ngx_connection_t *c, ngx_queue_t *frames);
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22 void ngx_quic_queue_frame(ngx_quic_connection_t *qc, ngx_quic_frame_t *frame);
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23 ngx_int_t ngx_quic_split_frame(ngx_connection_t *c, ngx_quic_frame_t *f,
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24 size_t len);
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26 ngx_chain_t *ngx_quic_alloc_buf(ngx_connection_t *c);
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27 ngx_chain_t *ngx_quic_copy_buf(ngx_connection_t *c, u_char *data,
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28 size_t len);
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29 ngx_chain_t *ngx_quic_copy_chain(ngx_connection_t *c, ngx_chain_t *in,
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30 size_t limit);
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31 void ngx_quic_trim_bufs(ngx_chain_t *in, size_t size);
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32 void ngx_quic_free_bufs(ngx_connection_t *c, ngx_chain_t *in);
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33 ngx_int_t ngx_quic_order_bufs(ngx_connection_t *c, ngx_chain_t **out,
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34 ngx_chain_t *in, size_t offset);
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36 #if (NGX_DEBUG)
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37 void ngx_quic_log_frame(ngx_log_t *log, ngx_quic_frame_t *f, ngx_uint_t tx);
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38 #else
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39 #define ngx_quic_log_frame(log, f, tx)
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40 #endif
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42 #endif /* _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_ */