Mercurial > hg > nginx-quic
annotate src/mail/ngx_mail_smtp_module.h @ 8759:56dec0d4e5b1 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> |
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date | Fri, 24 Dec 2021 18:13:51 +0300 |
parents | d620f497c50f |
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rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
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5 */ |
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8 #ifndef _NGX_MAIL_SMTP_MODULE_H_INCLUDED_ |
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9 #define _NGX_MAIL_SMTP_MODULE_H_INCLUDED_ |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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14 #include <ngx_mail.h> |
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15 #include <ngx_mail_smtp_module.h> |
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18 typedef struct { |
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19 ngx_msec_t greeting_delay; |
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21 size_t client_buffer_size; |
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23 ngx_str_t capability; |
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24 ngx_str_t starttls_capability; |
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25 ngx_str_t starttls_only_capability; |
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27 ngx_str_t server_name; |
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28 ngx_str_t greeting; |
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30 ngx_uint_t auth_methods; |
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32 ngx_array_t capabilities; |
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33 } ngx_mail_smtp_srv_conf_t; |
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36 void ngx_mail_smtp_init_session(ngx_mail_session_t *s, ngx_connection_t *c); |
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37 void ngx_mail_smtp_init_protocol(ngx_event_t *rev); |
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38 void ngx_mail_smtp_auth_state(ngx_event_t *rev); |
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39 ngx_int_t ngx_mail_smtp_parse_command(ngx_mail_session_t *s); |
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42 extern ngx_module_t ngx_mail_smtp_module; |
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45 #endif /* _NGX_MAIL_SMTP_MODULE_H_INCLUDED_ */ |