Mercurial > hg > nginx
annotate src/core/ngx_sha1.h @ 9225:1c9264603adc
Syslog: introduced ngx_syslog_send() error logging moderation.
Errors when logging to syslog are now logged at most once per second.
This ensures that persistent errors won't flood other logs, and spontaneous
errors, such as ENOBUFS as observed on BSD systems when syslogd cannot cope
with load, or EAGAIN as seen in similar situation on Linux, won't further
overload logging subsystem, leading to more errors.
Further, errors now can only trigger reconnects at most once per second.
This ensures that persistent errors, which cannot be fixed with reconnects,
don't trigger too much unneeded work.
Additionally, in case of connection errors, such as when syslogd is not
running, connection attempts are only made once per second.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Fri, 01 Mar 2024 05:42:12 +0300 |
parents | 9eefb38f0005 |
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rev | line source |
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1573 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
1573 | 5 */ |
6 | |
7 | |
8 #ifndef _NGX_SHA1_H_INCLUDED_ | |
9 #define _NGX_SHA1_H_INCLUDED_ | |
10 | |
11 | |
12 #include <ngx_config.h> | |
13 #include <ngx_core.h> | |
14 | |
15 | |
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An internal SHA1 implementation.
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16 typedef struct { |
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17 uint64_t bytes; |
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18 uint32_t a, b, c, d, e, f; |
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19 u_char buffer[64]; |
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20 } ngx_sha1_t; |
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An internal SHA1 implementation.
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21 |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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22 |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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23 void ngx_sha1_init(ngx_sha1_t *ctx); |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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24 void ngx_sha1_update(ngx_sha1_t *ctx, const void *data, size_t size); |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
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25 void ngx_sha1_final(u_char result[20], ngx_sha1_t *ctx); |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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26 |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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27 |
1573 | 28 #endif /* _NGX_SHA1_H_INCLUDED_ */ |