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annotate src/event/ngx_event_udp.h @ 9017:c2f5d79cde64 quic

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QUIC: separate UDP framework for QUIC. Previously, QUIC used the existing UDP framework, which was created for UDP in Stream. However the way QUIC connections are created and looked up is different from the way UDP connections in Stream are created and looked up. Now these two implementations are decoupled.
author Roman Arutyunyan <arut@nginx.com>
date Wed, 20 Apr 2022 16:01:17 +0400
parents ce6d9cf0f567
children 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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7 #ifndef _NGX_EVENT_UDP_H_INCLUDED_
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8 #define _NGX_EVENT_UDP_H_INCLUDED_
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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15 #if !(NGX_WIN32)
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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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23 #endif
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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 };
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33 #if (NGX_HAVE_ADDRINFO_CMSG)
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34
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35 typedef union {
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36 #if (NGX_HAVE_IP_SENDSRCADDR || NGX_HAVE_IP_RECVDSTADDR)
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37 struct in_addr addr;
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38 #endif
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40 #if (NGX_HAVE_IP_PKTINFO)
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41 struct in_pktinfo pkt;
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42 #endif
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44 #if (NGX_HAVE_INET6 && NGX_HAVE_IPV6_RECVPKTINFO)
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45 struct in6_pktinfo pkt6;
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46 #endif
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47 } ngx_addrinfo_t;
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48
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49 size_t ngx_set_srcaddr_cmsg(struct cmsghdr *cmsg,
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50 struct sockaddr *local_sockaddr);
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51 ngx_int_t ngx_get_srcaddr_cmsg(struct cmsghdr *cmsg,
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52 struct sockaddr *local_sockaddr);
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53
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54 #endif
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55
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56 void ngx_event_recvmsg(ngx_event_t *ev);
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57 ssize_t ngx_sendmsg(ngx_connection_t *c, struct msghdr *msg, int flags);
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58 void ngx_udp_rbtree_insert_value(ngx_rbtree_node_t *temp,
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59 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
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60 #endif
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62 void ngx_delete_udp_connection(void *data);
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65 #endif /* _NGX_EVENT_UDP_H_INCLUDED_ */