Mercurial > hg > nginx
annotate src/event/ngx_event_udp.h @ 9299:2706b60dc225 default tip
Core: error logging rate limiting.
With this change, error logging to files can be rate-limited with
the "rate=" parameter. The parameter specifies allowed log messages
rate to a particular file (per worker), in messages per second (m/s).
By default, "rate=1000m/s" is used.
Rate limiting is implemented using the "leaky bucket" method, similarly
to the limit_req module.
Maximum burst size is set to the number of log messages per second
for each severity level, so "error" messages are logged even if the
rate limit is hit by "info" messages (but not vice versa). When the
limit is reached for a particular level, the "too many log messages,
limiting" message is logged at this level.
If debug logging is enabled, either for the particular log file or for
the particular connection, rate limiting is not used.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 25 Jun 2024 22:58:56 +0300 |
parents | adcc6d8acfd4 |
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1 |
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2 /* |
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3 * Copyright (C) Nginx, Inc. |
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4 */ |
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5 |
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6 |
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7 #ifndef _NGX_EVENT_UDP_H_INCLUDED_ |
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8 #define _NGX_EVENT_UDP_H_INCLUDED_ |
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9 |
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10 |
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11 #include <ngx_config.h> |
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12 #include <ngx_core.h> |
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13 |
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14 |
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15 #if !(NGX_WIN32) |
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16 |
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17 #if ((NGX_HAVE_MSGHDR_MSG_CONTROL) \ |
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18 && (NGX_HAVE_IP_SENDSRCADDR || NGX_HAVE_IP_RECVDSTADDR \ |
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19 || NGX_HAVE_IP_PKTINFO \ |
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20 || (NGX_HAVE_INET6 && NGX_HAVE_IPV6_RECVPKTINFO))) |
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21 #define NGX_HAVE_ADDRINFO_CMSG 1 |
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22 |
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23 #endif |
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24 |
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25 |
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26 struct ngx_udp_connection_s { |
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27 ngx_rbtree_node_t node; |
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28 ngx_connection_t *connection; |
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29 ngx_buf_t *buffer; |
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30 ngx_str_t key; |
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31 }; |
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32 |
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33 |
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34 #if (NGX_HAVE_ADDRINFO_CMSG) |
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35 |
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36 typedef union { |
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37 #if (NGX_HAVE_IP_SENDSRCADDR || NGX_HAVE_IP_RECVDSTADDR) |
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38 struct in_addr addr; |
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39 #endif |
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40 |
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41 #if (NGX_HAVE_IP_PKTINFO) |
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42 struct in_pktinfo pkt; |
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43 #endif |
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44 |
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45 #if (NGX_HAVE_INET6 && NGX_HAVE_IPV6_RECVPKTINFO) |
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46 struct in6_pktinfo pkt6; |
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47 #endif |
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48 } ngx_addrinfo_t; |
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49 |
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50 size_t ngx_set_srcaddr_cmsg(struct cmsghdr *cmsg, |
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51 struct sockaddr *local_sockaddr); |
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52 ngx_int_t ngx_get_srcaddr_cmsg(struct cmsghdr *cmsg, |
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53 struct sockaddr *local_sockaddr); |
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54 |
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55 #endif |
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56 |
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57 void ngx_event_recvmsg(ngx_event_t *ev); |
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58 ssize_t ngx_sendmsg(ngx_connection_t *c, struct msghdr *msg, int flags); |
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59 void ngx_udp_rbtree_insert_value(ngx_rbtree_node_t *temp, |
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60 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); |
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61 #endif |
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62 |
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63 void ngx_delete_udp_connection(void *data); |
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64 |
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65 |
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66 #endif /* _NGX_EVENT_UDP_H_INCLUDED_ */ |