Mercurial > hg > nginx
view src/event/quic/ngx_event_quic_frames.h @ 8947:6ccf3867959a quic
QUIC: refactored ngx_quic_order_bufs() and ngx_quic_split_bufs().
They are replaced with ngx_quic_write_chain() and ngx_quic_read_chain().
These functions represent the API to data buffering.
The first function adds data of given size at given offset to the buffer.
Now it returns the unwritten part of the chain similar to c->send_chain().
The second function returns data of given size from the beginning of the buffer.
Its second argument and return value are swapped compared to
ngx_quic_split_bufs() to better match ngx_quic_write_chain().
Added, returned and stored data are regular ngx_chain_t/ngx_buf_t chains.
Missing data is marked with b->sync flag.
The functions are now used in both send and recv data chains in QUIC streams.
| author | Roman Arutyunyan <arut@nginx.com> |
|---|---|
| date | Fri, 24 Dec 2021 18:17:23 +0300 |
| parents | 56dec0d4e5b1 |
| children | 19e063e955bf |
line wrap: on
line source
/* * Copyright (C) Nginx, Inc. */ #ifndef _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_ #define _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> typedef ngx_int_t (*ngx_quic_frame_handler_pt)(ngx_connection_t *c, ngx_quic_frame_t *frame, void *data); ngx_quic_frame_t *ngx_quic_alloc_frame(ngx_connection_t *c); void ngx_quic_free_frame(ngx_connection_t *c, ngx_quic_frame_t *frame); void ngx_quic_free_frames(ngx_connection_t *c, ngx_queue_t *frames); void ngx_quic_queue_frame(ngx_quic_connection_t *qc, ngx_quic_frame_t *frame); ngx_int_t ngx_quic_split_frame(ngx_connection_t *c, ngx_quic_frame_t *f, size_t len); ngx_chain_t *ngx_quic_alloc_buf(ngx_connection_t *c); ngx_chain_t *ngx_quic_copy_buf(ngx_connection_t *c, u_char *data, size_t len); ngx_chain_t *ngx_quic_copy_chain(ngx_connection_t *c, ngx_chain_t *in, size_t limit); void ngx_quic_trim_bufs(ngx_chain_t *in, size_t size); void ngx_quic_free_bufs(ngx_connection_t *c, ngx_chain_t *in); ngx_chain_t *ngx_quic_read_chain(ngx_connection_t *c, ngx_chain_t **chain, off_t limit); ngx_chain_t *ngx_quic_write_chain(ngx_connection_t *c, ngx_chain_t **chain, ngx_chain_t *in, off_t limit, off_t offset); #if (NGX_DEBUG) void ngx_quic_log_frame(ngx_log_t *log, ngx_quic_frame_t *f, ngx_uint_t tx); #else #define ngx_quic_log_frame(log, f, tx) #endif #endif /* _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_ */