Mercurial > hg > nginx
annotate src/event/ngx_event_acceptex.c @ 3193:5b715491f7c4
release-0.8.19 tag
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 06 Oct 2009 16:19:43 +0000 |
parents | ec5825afc7eb |
children | 00d436dbf826 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
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11 |
543 | 12 static void ngx_close_posted_connection(ngx_connection_t *c); |
13 | |
14 | |
15 void | |
16 ngx_event_acceptex(ngx_event_t *rev) | |
59
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17 { |
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18 ngx_listening_t *ls; |
59
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19 ngx_connection_t *c; |
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20 |
461 | 21 c = rev->data; |
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22 ls = c->listening; |
461 | 23 |
543 | 24 c->log->handler = ngx_accept_log_error; |
25 | |
461 | 26 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "AcceptEx: %d", c->fd); |
102
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27 |
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28 if (rev->ovlp.error) { |
103
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29 ngx_log_error(NGX_LOG_CRIT, c->log, rev->ovlp.error, |
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30 "AcceptEx() %V failed", &ls->addr_text); |
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31 return; |
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32 } |
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33 |
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34 /* SO_UPDATE_ACCEPT_CONTEXT is required for shutdown() to work */ |
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35 |
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36 if (setsockopt(c->fd, SOL_SOCKET, SO_UPDATE_ACCEPT_CONTEXT, |
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37 (char *) &ls->fd, sizeof(ngx_socket_t)) |
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38 == -1) |
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39 { |
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40 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno, |
461 | 41 "setsockopt(SO_UPDATE_ACCEPT_CONTEXT) failed for %V", |
42 &c->addr_text); | |
102
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43 } else { |
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44 c->accept_context_updated = 1; |
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45 } |
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46 |
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47 ngx_getacceptexsockaddrs(c->buffer->pos, |
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48 ls->post_accept_buffer_size, |
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49 ls->socklen + 16, |
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50 ls->socklen + 16, |
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51 &c->local_sockaddr, &c->local_socklen, |
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52 &c->sockaddr, &c->socklen); |
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53 |
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54 if (ls->post_accept_buffer_size) { |
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55 c->buffer->last += rev->available; |
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56 c->buffer->end = c->buffer->start + ls->post_accept_buffer_size; |
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57 |
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58 } else { |
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59 c->buffer = NULL; |
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60 } |
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61 |
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62 if (ls->addr_ntop) { |
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63 c->addr_text.data = ngx_pnalloc(c->pool, ls->addr_text_max_len); |
461 | 64 if (c->addr_text.data == NULL) { |
65 /* TODO: close socket */ | |
66 return; | |
67 } | |
68 | |
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69 c->addr_text.len = ngx_sock_ntop(c->sockaddr, c->addr_text.data, |
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70 ls->addr_text_max_len, 0); |
461 | 71 if (c->addr_text.len == 0) { |
72 /* TODO: close socket */ | |
73 return; | |
74 } | |
75 } | |
76 | |
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77 ngx_event_post_acceptex(ls, 1); |
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78 |
561 | 79 c->number = ngx_atomic_fetch_add(ngx_connection_counter, 1); |
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80 |
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81 ls->handler(c); |
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82 |
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83 return; |
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84 |
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85 } |
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86 |
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87 |
543 | 88 ngx_int_t |
89 ngx_event_post_acceptex(ngx_listening_t *ls, ngx_uint_t n) | |
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90 { |
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91 u_long rcvd; |
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92 ngx_err_t err; |
543 | 93 ngx_log_t *log; |
94 ngx_uint_t i; | |
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95 ngx_event_t *rev, *wev; |
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96 ngx_socket_t s; |
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97 ngx_connection_t *c; |
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98 |
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99 for (i = 0; i < n; i++) { |
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100 |
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101 /* TODO: look up reused sockets */ |
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102 |
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103 s = ngx_socket(ls->sockaddr->sa_family, ls->type, 0); |
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104 |
543 | 105 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, &ls->log, 0, |
461 | 106 ngx_socket_n " s:%d", s); |
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107 |
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108 if (s == -1) { |
543 | 109 ngx_log_error(NGX_LOG_ALERT, &ls->log, ngx_socket_errno, |
110 ngx_socket_n " failed"); | |
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111 |
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112 return NGX_ERROR; |
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113 } |
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114 |
543 | 115 c = ngx_get_connection(s, &ls->log); |
116 | |
117 if (c == NULL) { | |
118 return NGX_ERROR; | |
119 } | |
120 | |
121 c->pool = ngx_create_pool(ls->pool_size, &ls->log); | |
122 if (c->pool == NULL) { | |
123 ngx_close_posted_connection(c); | |
124 return NGX_ERROR; | |
125 } | |
126 | |
127 log = ngx_palloc(c->pool, sizeof(ngx_log_t)); | |
128 if (log == NULL) { | |
129 ngx_close_posted_connection(c); | |
130 return NGX_ERROR; | |
103
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131 } |
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132 |
543 | 133 c->buffer = ngx_create_temp_buf(c->pool, ls->post_accept_buffer_size |
134 + 2 * (ls->socklen + 16)); | |
135 if (c->buffer == NULL) { | |
136 ngx_close_posted_connection(c); | |
137 return NGX_ERROR; | |
138 } | |
139 | |
140 c->local_sockaddr = ngx_palloc(c->pool, ls->socklen); | |
141 if (c->local_sockaddr == NULL) { | |
142 ngx_close_posted_connection(c); | |
143 return NGX_ERROR; | |
144 } | |
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145 |
543 | 146 c->sockaddr = ngx_palloc(c->pool, ls->socklen); |
147 if (c->sockaddr == NULL) { | |
148 ngx_close_posted_connection(c); | |
149 return NGX_ERROR; | |
150 } | |
151 | |
152 *log = ls->log; | |
153 c->log = log; | |
154 | |
155 c->recv = ngx_recv; | |
156 c->send = ngx_send; | |
577 | 157 c->recv_chain = ngx_recv_chain; |
543 | 158 c->send_chain = ngx_send_chain; |
159 | |
160 c->unexpected_eof = 1; | |
161 | |
162 c->listening = ls; | |
163 | |
561 | 164 rev = c->read; |
165 wev = c->write; | |
59
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166 |
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167 rev->ovlp.event = rev; |
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168 wev->ovlp.event = wev; |
509 | 169 rev->handler = ngx_event_acceptex; |
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170 |
461 | 171 rev->ready = 1; |
172 wev->ready = 1; | |
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173 |
543 | 174 rev->log = c->log; |
175 wev->log = c->log; | |
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176 |
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177 if (ngx_add_event(rev, 0, NGX_IOCP_IO) == NGX_ERROR) { |
543 | 178 ngx_close_posted_connection(c); |
59
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179 return NGX_ERROR; |
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180 } |
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181 |
1633
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182 if (ngx_acceptex(ls->fd, s, c->buffer->pos, ls->post_accept_buffer_size, |
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183 ls->socklen + 16, ls->socklen + 16, |
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184 &rcvd, (LPOVERLAPPED) &rev->ovlp) |
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185 == 0) |
103
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186 { |
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187 err = ngx_socket_errno; |
103
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188 if (err != WSA_IO_PENDING) { |
543 | 189 ngx_log_error(NGX_LOG_ALERT, &ls->log, err, |
563 | 190 "AcceptEx() %V falied", &ls->addr_text); |
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191 |
543 | 192 ngx_close_posted_connection(c); |
103
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193 return NGX_ERROR; |
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194 } |
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195 } |
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196 } |
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197 |
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198 return NGX_OK; |
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199 } |
543 | 200 |
201 | |
202 static void | |
203 ngx_close_posted_connection(ngx_connection_t *c) | |
204 { | |
205 ngx_socket_t fd; | |
206 | |
207 ngx_free_connection(c); | |
208 | |
209 fd = c->fd; | |
210 c->fd = (ngx_socket_t) -1; | |
211 | |
212 if (ngx_close_socket(fd) == -1) { | |
213 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno, | |
214 ngx_close_socket_n " failed"); | |
215 } | |
216 | |
217 if (c->pool) { | |
218 ngx_destroy_pool(c->pool); | |
219 } | |
220 } | |
221 | |
222 | |
223 u_char * | |
224 ngx_acceptex_log_error(ngx_log_t *log, u_char *buf, size_t len) | |
225 { | |
226 return ngx_snprintf(buf, len, " while posting AcceptEx() on %V", log->data); | |
227 } |