Mercurial > hg > nginx
view src/core/ngx_proxy_protocol.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> |
---|---|
date | Fri, 01 Mar 2024 05:42:12 +0300 |
parents | 17d6a537fb1b |
children |
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/* * Copyright (C) Roman Arutyunyan * Copyright (C) Nginx, Inc. */ #ifndef _NGX_PROXY_PROTOCOL_H_INCLUDED_ #define _NGX_PROXY_PROTOCOL_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #define NGX_PROXY_PROTOCOL_V1_MAX_HEADER 107 #define NGX_PROXY_PROTOCOL_MAX_HEADER 4096 struct ngx_proxy_protocol_s { ngx_str_t src_addr; ngx_str_t dst_addr; in_port_t src_port; in_port_t dst_port; ngx_str_t tlvs; }; u_char *ngx_proxy_protocol_read(ngx_connection_t *c, u_char *buf, u_char *last); u_char *ngx_proxy_protocol_write(ngx_connection_t *c, u_char *buf, u_char *last); ngx_int_t ngx_proxy_protocol_get_tlv(ngx_connection_t *c, ngx_str_t *name, ngx_str_t *value); #endif /* _NGX_PROXY_PROTOCOL_H_INCLUDED_ */