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annotate src/event/quic/ngx_event_quic_streams.h @ 8782:b3f6ad181df4 quic

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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>
date Tue, 25 May 2021 13:55:12 +0300
parents 41807e581de9
children fe919fd63b0b
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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_STREAMS_H_INCLUDED_
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8 #define _NGX_EVENT_QUIC_STREAMS_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 ngx_int_t ngx_quic_handle_stream_frame(ngx_connection_t *c,
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16 ngx_quic_header_t *pkt, ngx_quic_frame_t *frame);
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17 void ngx_quic_handle_stream_ack(ngx_connection_t *c,
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18 ngx_quic_frame_t *f);
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19 ngx_int_t ngx_quic_handle_max_data_frame(ngx_connection_t *c,
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20 ngx_quic_max_data_frame_t *f);
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21 ngx_int_t ngx_quic_handle_streams_blocked_frame(ngx_connection_t *c,
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22 ngx_quic_header_t *pkt, ngx_quic_streams_blocked_frame_t *f);
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23 ngx_int_t ngx_quic_handle_stream_data_blocked_frame(ngx_connection_t *c,
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24 ngx_quic_header_t *pkt, ngx_quic_stream_data_blocked_frame_t *f);
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25 ngx_int_t ngx_quic_handle_max_stream_data_frame(ngx_connection_t *c,
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26 ngx_quic_header_t *pkt, ngx_quic_max_stream_data_frame_t *f);
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27 ngx_int_t ngx_quic_handle_reset_stream_frame(ngx_connection_t *c,
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28 ngx_quic_header_t *pkt, ngx_quic_reset_stream_frame_t *f);
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29 ngx_int_t ngx_quic_handle_stop_sending_frame(ngx_connection_t *c,
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30 ngx_quic_header_t *pkt, ngx_quic_stop_sending_frame_t *f);
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31 ngx_int_t ngx_quic_handle_max_streams_frame(ngx_connection_t *c,
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32 ngx_quic_header_t *pkt, ngx_quic_max_streams_frame_t *f);
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33
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34 void ngx_quic_rbtree_insert_stream(ngx_rbtree_node_t *temp,
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35 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
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36 ngx_quic_stream_t *ngx_quic_find_stream(ngx_rbtree_t *rbtree,
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37 uint64_t id);
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38 ngx_int_t ngx_quic_close_streams(ngx_connection_t *c,
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39 ngx_quic_connection_t *qc);
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40
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41 #endif /* _NGX_EVENT_QUIC_STREAMS_H_INCLUDED_ */