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annotate src/event/quic/ngx_event_quic_frames.h @ 8801:000b9b048e0c quic

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QUIC: fixed chain returned from ngx_quic_write_chain(). Previously, when input ended on a QUIC buffer boundary, input chain was not advanced to the next buffer. As a result, ngx_quic_write_chain() returned a chain with an empty buffer instead of NULL. This broke HTTP write filter, preventing it from closing the HTTP request and eventually timing out. Now input chain is always advanced to a buffer that has data, before checking QUIC buffer boundary condition.
author Roman Arutyunyan <arut@nginx.com>
date Tue, 25 Jan 2022 09:45:50 +0300
parents 3789f4a56d65
children f9c788f3f5cc
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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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25
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26 ngx_chain_t *ngx_quic_alloc_chain(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 void ngx_quic_trim_chain(ngx_chain_t *in, size_t size);
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30 void ngx_quic_free_chain(ngx_connection_t *c, ngx_chain_t *in);
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31 ngx_chain_t *ngx_quic_read_chain(ngx_connection_t *c, ngx_chain_t **chain,
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32 off_t limit);
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33 ngx_chain_t *ngx_quic_write_chain(ngx_connection_t *c, ngx_chain_t **chain,
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34 ngx_chain_t *in, off_t limit, off_t offset, size_t *size);
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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_ */