Mercurial > hg > nginx-quic
annotate src/event/quic/ngx_event_quic_frames.h @ 8442:b3f6ad181df4 quic
QUIC: refactored CRYPTO and STREAM buffer ordering.
Generic function ngx_quic_order_bufs() is introduced. This function creates
and maintains a chain of buffers with holes. Holes are marked with b->sync
flag. Several buffers and holes in this chain may share the same underlying
memory buffer.
When processing STREAM frames with this function, frame data is copied only
once to the right place in the stream input chain. Previously data could
be copied twice. First when buffering an out-of-order frame data, and then
when filling stream buffer from ordered frame queue. Now there's only one
data chain for both tasks.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Tue, 25 May 2021 13:55:12 +0300 |
parents | f52a2b77d406 |
children | 56dec0d4e5b1 |
rev | line source |
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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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5 |
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6 |
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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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9 |
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10 |
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11 #include <ngx_config.h> |
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12 #include <ngx_core.h> |
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13 |
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14 |
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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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17 |
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18 |
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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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25 |
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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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41 |
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42 #endif /* _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_ */ |