Mercurial > hg > nginx
view src/event/quic/ngx_event_quic_socket.h @ 8946:56dec0d4e5b1 quic
QUIC: avoid excessive buffer allocations in stream output.
Previously, when a few bytes were send to a QUIC stream by the application, a
4K buffer was allocated for these bytes. Then a STREAM frame was created and
that entire buffer was used as data for that frame. The frame with the buffer
were in use up until the frame was acked by client. Meanwhile, when more
bytes were send to the stream, more buffers were allocated and assigned as
data to newer STREAM frames. In this scenario most buffer memory is unused.
Now the unused part of the stream output buffer is available for further
stream output while earlier parts of the buffer are waiting to be acked.
This is achieved by splitting the output buffer.
| author | Roman Arutyunyan <arut@nginx.com> |
|---|---|
| date | Fri, 24 Dec 2021 18:13:51 +0300 |
| parents | b09f055daa4e |
| children | 32daba3aabb2 |
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/* * Copyright (C) Nginx, Inc. */ #ifndef _NGX_EVENT_QUIC_SOCKET_H_INCLUDED_ #define _NGX_EVENT_QUIC_SOCKET_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> ngx_int_t ngx_quic_open_sockets(ngx_connection_t *c, ngx_quic_connection_t *qc, ngx_quic_header_t *pkt); void ngx_quic_close_sockets(ngx_connection_t *c); ngx_quic_socket_t *ngx_quic_alloc_socket(ngx_connection_t *c, ngx_quic_connection_t *qc); ngx_int_t ngx_quic_listen(ngx_connection_t *c, ngx_quic_connection_t *qc, ngx_quic_socket_t *qsock); void ngx_quic_close_socket(ngx_connection_t *c, ngx_quic_socket_t *qsock); void ngx_quic_unref_path(ngx_connection_t *c, ngx_quic_path_t *path); void ngx_quic_connect(ngx_connection_t *c, ngx_quic_socket_t *qsock, ngx_quic_path_t *path, ngx_quic_client_id_t *cid); ngx_quic_socket_t *ngx_quic_find_socket(ngx_connection_t *c, uint64_t seqnum); ngx_quic_socket_t *ngx_quic_get_unconnected_socket(ngx_connection_t *c); #endif /* _NGX_EVENT_QUIC_SOCKET_H_INCLUDED_ */