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comparison src/event/quic/ngx_event_quic_frames.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 f52a2b77d406
children 56dec0d4e5b1
comparison
equal deleted inserted replaced
8781:81d491f0dc8c 8782:b3f6ad181df4
26 ngx_chain_t *ngx_quic_alloc_buf(ngx_connection_t *c); 26 ngx_chain_t *ngx_quic_alloc_buf(ngx_connection_t *c);
27 ngx_chain_t *ngx_quic_copy_buf(ngx_connection_t *c, u_char *data, 27 ngx_chain_t *ngx_quic_copy_buf(ngx_connection_t *c, u_char *data,
28 size_t len); 28 size_t len);
29 ngx_chain_t *ngx_quic_copy_chain(ngx_connection_t *c, ngx_chain_t *in, 29 ngx_chain_t *ngx_quic_copy_chain(ngx_connection_t *c, ngx_chain_t *in,
30 size_t limit); 30 size_t limit);
31 void ngx_quic_trim_bufs(ngx_chain_t *in, size_t size);
31 void ngx_quic_free_bufs(ngx_connection_t *c, ngx_chain_t *in); 32 void ngx_quic_free_bufs(ngx_connection_t *c, ngx_chain_t *in);
32 33 ngx_int_t ngx_quic_order_bufs(ngx_connection_t *c, ngx_chain_t **out,
33 ngx_int_t ngx_quic_handle_ordered_frame(ngx_connection_t *c, 34 ngx_chain_t *in, size_t offset);
34 ngx_quic_frames_stream_t *fs, ngx_quic_frame_t *frame,
35 ngx_quic_frame_handler_pt handler, void *data);
36 35
37 #if (NGX_DEBUG) 36 #if (NGX_DEBUG)
38 void ngx_quic_log_frame(ngx_log_t *log, ngx_quic_frame_t *f, ngx_uint_t tx); 37 void ngx_quic_log_frame(ngx_log_t *log, ngx_quic_frame_t *f, ngx_uint_t tx);
39 #else 38 #else
40 #define ngx_quic_log_frame(log, f, tx) 39 #define ngx_quic_log_frame(log, f, tx)