Mercurial > hg > nginx
annotate src/event/ngx_event_acceptex.c @ 4055:9cce506be97d
Ranges processing small optimization.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 30 Aug 2011 12:45:24 +0000 |
parents | 00d436dbf826 |
children | d620f497c50f |
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) | |
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17 { |
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18 ngx_listening_t *ls; |
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19 ngx_connection_t *c; |
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20 socklen_t len; |
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21 |
461 | 22 c = rev->data; |
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23 ls = c->listening; |
461 | 24 |
543 | 25 c->log->handler = ngx_accept_log_error; |
26 | |
461 | 27 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "AcceptEx: %d", c->fd); |
102
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28 |
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29 if (rev->ovlp.error) { |
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30 ngx_log_error(NGX_LOG_CRIT, c->log, rev->ovlp.error, |
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31 "AcceptEx() %V failed", &ls->addr_text); |
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32 return; |
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33 } |
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34 |
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35 /* SO_UPDATE_ACCEPT_CONTEXT is required for shutdown() to work */ |
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36 |
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37 if (setsockopt(c->fd, SOL_SOCKET, SO_UPDATE_ACCEPT_CONTEXT, |
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38 (char *) &ls->fd, sizeof(ngx_socket_t)) |
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39 == -1) |
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40 { |
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41 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno, |
461 | 42 "setsockopt(SO_UPDATE_ACCEPT_CONTEXT) failed for %V", |
43 &c->addr_text); | |
102
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44 } else { |
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45 c->accept_context_updated = 1; |
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46 } |
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47 |
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48 ngx_getacceptexsockaddrs(c->buffer->pos, |
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49 ls->post_accept_buffer_size, |
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50 ls->socklen + 16, |
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51 ls->socklen + 16, |
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52 &c->local_sockaddr, &len, |
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53 &c->sockaddr, &c->socklen); |
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54 |
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55 if (ls->post_accept_buffer_size) { |
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56 c->buffer->last += rev->available; |
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57 c->buffer->end = c->buffer->start + ls->post_accept_buffer_size; |
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58 |
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59 } else { |
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60 c->buffer = NULL; |
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61 } |
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62 |
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63 if (ls->addr_ntop) { |
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64 c->addr_text.data = ngx_pnalloc(c->pool, ls->addr_text_max_len); |
461 | 65 if (c->addr_text.data == NULL) { |
66 /* TODO: close socket */ | |
67 return; | |
68 } | |
69 | |
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70 c->addr_text.len = ngx_sock_ntop(c->sockaddr, c->addr_text.data, |
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71 ls->addr_text_max_len, 0); |
461 | 72 if (c->addr_text.len == 0) { |
73 /* TODO: close socket */ | |
74 return; | |
75 } | |
76 } | |
77 | |
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78 ngx_event_post_acceptex(ls, 1); |
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79 |
561 | 80 c->number = ngx_atomic_fetch_add(ngx_connection_counter, 1); |
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81 |
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82 ls->handler(c); |
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83 |
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84 return; |
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85 |
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86 } |
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87 |
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88 |
543 | 89 ngx_int_t |
90 ngx_event_post_acceptex(ngx_listening_t *ls, ngx_uint_t n) | |
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91 { |
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92 u_long rcvd; |
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93 ngx_err_t err; |
543 | 94 ngx_log_t *log; |
95 ngx_uint_t i; | |
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96 ngx_event_t *rev, *wev; |
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97 ngx_socket_t s; |
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98 ngx_connection_t *c; |
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99 |
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100 for (i = 0; i < n; i++) { |
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101 |
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102 /* TODO: look up reused sockets */ |
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103 |
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104 s = ngx_socket(ls->sockaddr->sa_family, ls->type, 0); |
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105 |
543 | 106 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, &ls->log, 0, |
461 | 107 ngx_socket_n " s:%d", s); |
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108 |
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109 if (s == -1) { |
543 | 110 ngx_log_error(NGX_LOG_ALERT, &ls->log, ngx_socket_errno, |
111 ngx_socket_n " failed"); | |
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112 |
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113 return NGX_ERROR; |
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114 } |
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115 |
543 | 116 c = ngx_get_connection(s, &ls->log); |
117 | |
118 if (c == NULL) { | |
119 return NGX_ERROR; | |
120 } | |
121 | |
122 c->pool = ngx_create_pool(ls->pool_size, &ls->log); | |
123 if (c->pool == NULL) { | |
124 ngx_close_posted_connection(c); | |
125 return NGX_ERROR; | |
126 } | |
127 | |
128 log = ngx_palloc(c->pool, sizeof(ngx_log_t)); | |
129 if (log == NULL) { | |
130 ngx_close_posted_connection(c); | |
131 return NGX_ERROR; | |
103
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132 } |
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133 |
543 | 134 c->buffer = ngx_create_temp_buf(c->pool, ls->post_accept_buffer_size |
135 + 2 * (ls->socklen + 16)); | |
136 if (c->buffer == NULL) { | |
137 ngx_close_posted_connection(c); | |
138 return NGX_ERROR; | |
139 } | |
140 | |
141 c->local_sockaddr = ngx_palloc(c->pool, ls->socklen); | |
142 if (c->local_sockaddr == NULL) { | |
143 ngx_close_posted_connection(c); | |
144 return NGX_ERROR; | |
145 } | |
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146 |
543 | 147 c->sockaddr = ngx_palloc(c->pool, ls->socklen); |
148 if (c->sockaddr == NULL) { | |
149 ngx_close_posted_connection(c); | |
150 return NGX_ERROR; | |
151 } | |
152 | |
153 *log = ls->log; | |
154 c->log = log; | |
155 | |
156 c->recv = ngx_recv; | |
157 c->send = ngx_send; | |
577 | 158 c->recv_chain = ngx_recv_chain; |
543 | 159 c->send_chain = ngx_send_chain; |
160 | |
161 c->unexpected_eof = 1; | |
162 | |
163 c->listening = ls; | |
164 | |
561 | 165 rev = c->read; |
166 wev = c->write; | |
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167 |
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168 rev->ovlp.event = rev; |
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169 wev->ovlp.event = wev; |
509 | 170 rev->handler = ngx_event_acceptex; |
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171 |
461 | 172 rev->ready = 1; |
173 wev->ready = 1; | |
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174 |
543 | 175 rev->log = c->log; |
176 wev->log = c->log; | |
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177 |
102
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178 if (ngx_add_event(rev, 0, NGX_IOCP_IO) == NGX_ERROR) { |
543 | 179 ngx_close_posted_connection(c); |
59
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180 return NGX_ERROR; |
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181 } |
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182 |
1633
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183 if (ngx_acceptex(ls->fd, s, c->buffer->pos, ls->post_accept_buffer_size, |
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184 ls->socklen + 16, ls->socklen + 16, |
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185 &rcvd, (LPOVERLAPPED) &rev->ovlp) |
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186 == 0) |
103
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187 { |
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188 err = ngx_socket_errno; |
103
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189 if (err != WSA_IO_PENDING) { |
543 | 190 ngx_log_error(NGX_LOG_ALERT, &ls->log, err, |
563 | 191 "AcceptEx() %V falied", &ls->addr_text); |
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192 |
543 | 193 ngx_close_posted_connection(c); |
103
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194 return NGX_ERROR; |
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195 } |
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196 } |
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197 } |
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198 |
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199 return NGX_OK; |
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200 } |
543 | 201 |
202 | |
203 static void | |
204 ngx_close_posted_connection(ngx_connection_t *c) | |
205 { | |
206 ngx_socket_t fd; | |
207 | |
208 ngx_free_connection(c); | |
209 | |
210 fd = c->fd; | |
211 c->fd = (ngx_socket_t) -1; | |
212 | |
213 if (ngx_close_socket(fd) == -1) { | |
214 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno, | |
215 ngx_close_socket_n " failed"); | |
216 } | |
217 | |
218 if (c->pool) { | |
219 ngx_destroy_pool(c->pool); | |
220 } | |
221 } | |
222 | |
223 | |
224 u_char * | |
225 ngx_acceptex_log_error(ngx_log_t *log, u_char *buf, size_t len) | |
226 { | |
227 return ngx_snprintf(buf, len, " while posting AcceptEx() on %V", log->data); | |
228 } |