Mercurial > hg > nginx-quic
annotate src/core/ngx_connection.c @ 4569:1db899642518
Upstream: reject upstreams without normal servers.
Such upstreams cause CPU hog later in the code as number of peers isn't
expected to be 0. Currently this may happen either if there are only backup
servers defined in an upstream block, or if server with ipv6 address used
in an upstream block.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 02 Apr 2012 21:29:35 +0000 |
parents | 14411ee4d89f |
children | 67653855682e |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_event.h> |
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11 |
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12 |
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13 ngx_os_io_t ngx_io; |
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14 |
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15 |
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16 static void ngx_drain_connections(void); |
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17 |
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18 |
2806 | 19 ngx_listening_t * |
20 ngx_create_listening(ngx_conf_t *cf, void *sockaddr, socklen_t socklen) | |
21 { | |
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22 size_t len; |
2806 | 23 ngx_listening_t *ls; |
24 struct sockaddr *sa; | |
25 u_char text[NGX_SOCKADDR_STRLEN]; | |
26 | |
27 ls = ngx_array_push(&cf->cycle->listening); | |
28 if (ls == NULL) { | |
29 return NULL; | |
30 } | |
31 | |
32 ngx_memzero(ls, sizeof(ngx_listening_t)); | |
33 | |
34 sa = ngx_palloc(cf->pool, socklen); | |
35 if (sa == NULL) { | |
36 return NULL; | |
37 } | |
38 | |
39 ngx_memcpy(sa, sockaddr, socklen); | |
40 | |
41 ls->sockaddr = sa; | |
42 ls->socklen = socklen; | |
43 | |
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44 len = ngx_sock_ntop(sa, text, NGX_SOCKADDR_STRLEN, 1); |
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45 ls->addr_text.len = len; |
2806 | 46 |
47 switch (ls->sockaddr->sa_family) { | |
48 #if (NGX_HAVE_INET6) | |
49 case AF_INET6: | |
50 ls->addr_text_max_len = NGX_INET6_ADDRSTRLEN; | |
51 break; | |
52 #endif | |
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53 #if (NGX_HAVE_UNIX_DOMAIN) |
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54 case AF_UNIX: |
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55 ls->addr_text_max_len = NGX_UNIX_ADDRSTRLEN; |
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56 len++; |
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57 break; |
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58 #endif |
2806 | 59 case AF_INET: |
60 ls->addr_text_max_len = NGX_INET_ADDRSTRLEN; | |
61 break; | |
62 default: | |
63 ls->addr_text_max_len = NGX_SOCKADDR_STRLEN; | |
64 break; | |
65 } | |
66 | |
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67 ls->addr_text.data = ngx_pnalloc(cf->pool, len); |
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68 if (ls->addr_text.data == NULL) { |
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69 return NULL; |
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70 } |
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71 |
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72 ngx_memcpy(ls->addr_text.data, text, len); |
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73 |
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74 ls->fd = (ngx_socket_t) -1; |
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75 ls->type = SOCK_STREAM; |
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76 |
2806 | 77 ls->backlog = NGX_LISTEN_BACKLOG; |
78 ls->rcvbuf = -1; | |
79 ls->sndbuf = -1; | |
80 | |
3676 | 81 #if (NGX_HAVE_SETFIB) |
82 ls->setfib = -1; | |
83 #endif | |
84 | |
2806 | 85 return ls; |
86 } | |
87 | |
88 | |
521 | 89 ngx_int_t |
90 ngx_set_inherited_sockets(ngx_cycle_t *cycle) | |
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91 { |
523 | 92 size_t len; |
93 ngx_uint_t i; | |
94 ngx_listening_t *ls; | |
563 | 95 socklen_t olen; |
523 | 96 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER) |
541 | 97 ngx_err_t err; |
523 | 98 struct accept_filter_arg af; |
99 #endif | |
100 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT) | |
101 int timeout; | |
102 #endif | |
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103 |
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104 ls = cycle->listening.elts; |
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105 for (i = 0; i < cycle->listening.nelts; i++) { |
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106 |
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107 ls[i].sockaddr = ngx_palloc(cycle->pool, NGX_SOCKADDRLEN); |
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108 if (ls[i].sockaddr == NULL) { |
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109 return NGX_ERROR; |
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110 } |
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111 |
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112 ls[i].socklen = NGX_SOCKADDRLEN; |
219
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113 if (getsockname(ls[i].fd, ls[i].sockaddr, &ls[i].socklen) == -1) { |
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114 ngx_log_error(NGX_LOG_CRIT, cycle->log, ngx_socket_errno, |
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115 "getsockname() of the inherited " |
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116 "socket #%d failed", ls[i].fd); |
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117 ls[i].ignore = 1; |
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118 continue; |
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119 } |
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120 |
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121 switch (ls[i].sockaddr->sa_family) { |
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122 |
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123 #if (NGX_HAVE_INET6) |
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124 case AF_INET6: |
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125 ls[i].addr_text_max_len = NGX_INET6_ADDRSTRLEN; |
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126 len = NGX_INET6_ADDRSTRLEN + sizeof(":65535") - 1; |
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127 break; |
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128 #endif |
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129 |
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130 #if (NGX_HAVE_UNIX_DOMAIN) |
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131 case AF_UNIX: |
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132 ls[i].addr_text_max_len = NGX_UNIX_ADDRSTRLEN; |
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133 len = NGX_UNIX_ADDRSTRLEN; |
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134 break; |
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135 #endif |
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136 |
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137 case AF_INET: |
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138 ls[i].addr_text_max_len = NGX_INET_ADDRSTRLEN; |
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139 len = NGX_INET_ADDRSTRLEN + sizeof(":65535") - 1; |
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140 break; |
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141 |
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142 default: |
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143 ngx_log_error(NGX_LOG_CRIT, cycle->log, ngx_socket_errno, |
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144 "the inherited socket #%d has " |
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145 "an unsupported protocol family", ls[i].fd); |
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146 ls[i].ignore = 1; |
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147 continue; |
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148 } |
461 | 149 |
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150 ls[i].addr_text.data = ngx_pnalloc(cycle->pool, len); |
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151 if (ls[i].addr_text.data == NULL) { |
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152 return NGX_ERROR; |
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153 } |
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154 |
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155 len = ngx_sock_ntop(ls[i].sockaddr, ls[i].addr_text.data, len, 1); |
461 | 156 if (len == 0) { |
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157 return NGX_ERROR; |
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158 } |
461 | 159 |
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160 ls[i].addr_text.len = len; |
523 | 161 |
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162 ls[i].backlog = NGX_LISTEN_BACKLOG; |
537 | 163 |
563 | 164 olen = sizeof(int); |
165 | |
166 if (getsockopt(ls[i].fd, SOL_SOCKET, SO_RCVBUF, (void *) &ls[i].rcvbuf, | |
167 &olen) | |
168 == -1) | |
169 { | |
170 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno, | |
171 "getsockopt(SO_RCVBUF) %V failed, ignored", | |
172 &ls[i].addr_text); | |
173 | |
174 ls[i].rcvbuf = -1; | |
175 } | |
176 | |
177 olen = sizeof(int); | |
178 | |
179 if (getsockopt(ls[i].fd, SOL_SOCKET, SO_SNDBUF, (void *) &ls[i].sndbuf, | |
180 &olen) | |
181 == -1) | |
182 { | |
183 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno, | |
184 "getsockopt(SO_SNDBUF) %V failed, ignored", | |
185 &ls[i].addr_text); | |
186 | |
187 ls[i].sndbuf = -1; | |
188 } | |
189 | |
3676 | 190 #if 0 |
191 /* SO_SETFIB is currently a set only option */ | |
192 | |
193 #if (NGX_HAVE_SETFIB) | |
194 | |
195 if (getsockopt(ls[i].setfib, SOL_SOCKET, SO_SETFIB, | |
196 (void *) &ls[i].setfib, &olen) | |
197 == -1) | |
198 { | |
199 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno, | |
200 "getsockopt(SO_SETFIB) %V failed, ignored", | |
201 &ls[i].addr_text); | |
202 | |
203 ls[i].setfib = -1; | |
204 } | |
205 | |
206 #endif | |
207 #endif | |
208 | |
523 | 209 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER) |
210 | |
211 ngx_memzero(&af, sizeof(struct accept_filter_arg)); | |
563 | 212 olen = sizeof(struct accept_filter_arg); |
523 | 213 |
563 | 214 if (getsockopt(ls[i].fd, SOL_SOCKET, SO_ACCEPTFILTER, &af, &olen) |
523 | 215 == -1) |
216 { | |
541 | 217 err = ngx_errno; |
218 | |
219 if (err == NGX_EINVAL) { | |
220 continue; | |
221 } | |
222 | |
223 ngx_log_error(NGX_LOG_NOTICE, cycle->log, err, | |
523 | 224 "getsockopt(SO_ACCEPTFILTER) for %V failed, ignored", |
225 &ls[i].addr_text); | |
226 continue; | |
227 } | |
228 | |
563 | 229 if (olen < sizeof(struct accept_filter_arg) || af.af_name[0] == '\0') { |
523 | 230 continue; |
231 } | |
232 | |
233 ls[i].accept_filter = ngx_palloc(cycle->pool, 16); | |
234 if (ls[i].accept_filter == NULL) { | |
235 return NGX_ERROR; | |
236 } | |
237 | |
238 (void) ngx_cpystrn((u_char *) ls[i].accept_filter, | |
239 (u_char *) af.af_name, 16); | |
240 #endif | |
241 | |
242 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT) | |
243 | |
244 timeout = 0; | |
563 | 245 olen = sizeof(int); |
523 | 246 |
563 | 247 if (getsockopt(ls[i].fd, IPPROTO_TCP, TCP_DEFER_ACCEPT, &timeout, &olen) |
523 | 248 == -1) |
249 { | |
250 ngx_log_error(NGX_LOG_NOTICE, cycle->log, ngx_errno, | |
251 "getsockopt(TCP_DEFER_ACCEPT) for %V failed, ignored", | |
252 &ls[i].addr_text); | |
253 continue; | |
254 } | |
255 | |
565 | 256 if (olen < sizeof(int) || timeout == 0) { |
523 | 257 continue; |
258 } | |
259 | |
260 ls[i].deferred_accept = 1; | |
261 #endif | |
218
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262 } |
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263 |
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264 return NGX_OK; |
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265 } |
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266 |
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267 |
521 | 268 ngx_int_t |
269 ngx_open_listening_sockets(ngx_cycle_t *cycle) | |
218
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270 { |
563 | 271 int reuseaddr; |
272 ngx_uint_t i, tries, failed; | |
253
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273 ngx_err_t err; |
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274 ngx_log_t *log; |
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275 ngx_socket_t s; |
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276 ngx_listening_t *ls; |
218
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277 |
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278 reuseaddr = 1; |
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279 #if (NGX_SUPPRESS_WARN) |
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280 failed = 0; |
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281 #endif |
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282 |
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283 log = cycle->log; |
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284 |
563 | 285 /* TODO: configurable try number */ |
218
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286 |
2024 | 287 for (tries = 5; tries; tries--) { |
218
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288 failed = 0; |
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289 |
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290 /* for each listening socket */ |
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291 |
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292 ls = cycle->listening.elts; |
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293 for (i = 0; i < cycle->listening.nelts; i++) { |
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294 |
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295 if (ls[i].ignore) { |
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296 continue; |
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297 } |
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298 |
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299 if (ls[i].fd != -1) { |
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300 continue; |
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301 } |
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302 |
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303 if (ls[i].inherited) { |
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304 |
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305 /* TODO: close on exit */ |
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306 /* TODO: nonblocking */ |
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307 /* TODO: deferred accept */ |
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308 |
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309 continue; |
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310 } |
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311 |
2198
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312 s = ngx_socket(ls[i].sockaddr->sa_family, ls[i].type, 0); |
218
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313 |
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314 if (s == -1) { |
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315 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, |
461 | 316 ngx_socket_n " %V failed", &ls[i].addr_text); |
218
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317 return NGX_ERROR; |
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318 } |
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319 |
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320 if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, |
563 | 321 (const void *) &reuseaddr, sizeof(int)) |
322 == -1) | |
323 { | |
218
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324 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, |
461 | 325 "setsockopt(SO_REUSEADDR) %V failed", |
326 &ls[i].addr_text); | |
563 | 327 |
1223 | 328 if (ngx_close_socket(s) == -1) { |
563 | 329 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, |
330 ngx_close_socket_n " %V failed", | |
331 &ls[i].addr_text); | |
1223 | 332 } |
563 | 333 |
218
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334 return NGX_ERROR; |
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335 } |
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336 |
2562 | 337 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) |
338 | |
339 if (ls[i].sockaddr->sa_family == AF_INET6 && ls[i].ipv6only) { | |
340 int ipv6only; | |
341 | |
342 ipv6only = (ls[i].ipv6only == 1); | |
343 | |
344 if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, | |
345 (const void *) &ipv6only, sizeof(int)) | |
346 == -1) | |
347 { | |
2801 | 348 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, |
2562 | 349 "setsockopt(IPV6_V6ONLY) %V failed, ignored", |
350 &ls[i].addr_text); | |
351 } | |
352 } | |
353 #endif | |
218
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354 /* TODO: close on exit */ |
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355 |
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356 if (!(ngx_event_flags & NGX_USE_AIO_EVENT)) { |
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357 if (ngx_nonblocking(s) == -1) { |
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358 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, |
461 | 359 ngx_nonblocking_n " %V failed", |
360 &ls[i].addr_text); | |
563 | 361 |
1223 | 362 if (ngx_close_socket(s) == -1) { |
563 | 363 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, |
364 ngx_close_socket_n " %V failed", | |
365 &ls[i].addr_text); | |
1223 | 366 } |
563 | 367 |
218
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368 return NGX_ERROR; |
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369 } |
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370 } |
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371 |
2801 | 372 ngx_log_debug2(NGX_LOG_DEBUG_CORE, log, 0, |
593 | 373 "bind() %V #%d ", &ls[i].addr_text, s); |
374 | |
218
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375 if (bind(s, ls[i].sockaddr, ls[i].socklen) == -1) { |
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376 err = ngx_socket_errno; |
563 | 377 |
378 if (err == NGX_EADDRINUSE && ngx_test_config) { | |
379 continue; | |
380 } | |
381 | |
218
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382 ngx_log_error(NGX_LOG_EMERG, log, err, |
461 | 383 "bind() to %V failed", &ls[i].addr_text); |
218
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384 |
1223 | 385 if (ngx_close_socket(s) == -1) { |
218
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386 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, |
461 | 387 ngx_close_socket_n " %V failed", |
388 &ls[i].addr_text); | |
1223 | 389 } |
218
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390 |
563 | 391 if (err != NGX_EADDRINUSE) { |
392 return NGX_ERROR; | |
393 } | |
394 | |
218
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395 failed = 1; |
563 | 396 |
218
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397 continue; |
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398 } |
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399 |
3260
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unlink unix domain socket file after testing
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400 #if (NGX_HAVE_UNIX_DOMAIN) |
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401 |
3371
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402 if (ls[i].sockaddr->sa_family == AF_UNIX) { |
102fdc22de4d
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403 mode_t mode; |
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404 u_char *name; |
102fdc22de4d
chmod unix listen domain socket to 0666
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405 |
102fdc22de4d
chmod unix listen domain socket to 0666
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406 name = ls[i].addr_text.data + sizeof("unix:") - 1; |
102fdc22de4d
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407 mode = (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH); |
3260
a6df0624203c
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408 |
3371
102fdc22de4d
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|
409 if (chmod((char *) name, mode) == -1) { |
102fdc22de4d
chmod unix listen domain socket to 0666
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410 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
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411 "chmod() \"%s\" failed", name); |
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412 } |
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413 |
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414 if (ngx_test_config) { |
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415 if (ngx_delete_file(name) == -1) { |
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416 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
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417 ngx_delete_file_n " %s failed", name); |
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418 } |
3260
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419 } |
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420 } |
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421 #endif |
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422 |
1224
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423 if (listen(s, ls[i].backlog) == -1) { |
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424 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, |
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425 "listen() to %V, backlog %d failed", |
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426 &ls[i].addr_text, ls[i].backlog); |
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427 |
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428 if (ngx_close_socket(s) == -1) { |
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429 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, |
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430 ngx_close_socket_n " %V failed", |
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431 &ls[i].addr_text); |
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432 } |
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433 |
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434 return NGX_ERROR; |
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435 } |
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436 |
563 | 437 ls[i].listen = 1; |
218
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438 |
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439 ls[i].fd = s; |
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440 } |
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441 |
563 | 442 if (!failed) { |
218
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443 break; |
563 | 444 } |
218
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445 |
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446 /* TODO: delay configurable */ |
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447 |
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448 ngx_log_error(NGX_LOG_NOTICE, log, 0, |
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449 "try again to bind() after 500ms"); |
563 | 450 |
218
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451 ngx_msleep(500); |
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452 } |
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453 |
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454 if (failed) { |
477 | 455 ngx_log_error(NGX_LOG_EMERG, log, 0, "still could not bind()"); |
218
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456 return NGX_ERROR; |
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457 } |
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458 |
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459 return NGX_OK; |
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460 } |
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461 |
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462 |
521 | 463 void |
2802 | 464 ngx_configure_listening_sockets(ngx_cycle_t *cycle) |
563 | 465 { |
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466 int keepalive; |
563 | 467 ngx_uint_t i; |
468 ngx_listening_t *ls; | |
469 | |
470 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER) | |
471 struct accept_filter_arg af; | |
472 #endif | |
473 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT) | |
474 int timeout; | |
475 #endif | |
476 | |
477 ls = cycle->listening.elts; | |
478 for (i = 0; i < cycle->listening.nelts; i++) { | |
479 | |
2803
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480 ls[i].log = *ls[i].logp; |
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481 |
563 | 482 if (ls[i].rcvbuf != -1) { |
483 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_RCVBUF, | |
484 (const void *) &ls[i].rcvbuf, sizeof(int)) | |
485 == -1) | |
486 { | |
487 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno, | |
569 | 488 "setsockopt(SO_RCVBUF, %d) %V failed, ignored", |
489 ls[i].rcvbuf, &ls[i].addr_text); | |
563 | 490 } |
491 } | |
492 | |
493 if (ls[i].sndbuf != -1) { | |
494 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_SNDBUF, | |
495 (const void *) &ls[i].sndbuf, sizeof(int)) | |
496 == -1) | |
497 { | |
498 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno, | |
569 | 499 "setsockopt(SO_SNDBUF, %d) %V failed, ignored", |
500 ls[i].sndbuf, &ls[i].addr_text); | |
563 | 501 } |
502 } | |
503 | |
4323
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504 if (ls[i].keepalive) { |
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505 keepalive = (ls[i].keepalive == 1) ? 1 : 0; |
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506 |
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507 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_KEEPALIVE, |
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508 (const void *) &keepalive, sizeof(int)) |
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509 == -1) |
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510 { |
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511 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno, |
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512 "setsockopt(SO_KEEPALIVE, %d) %V failed, ignored", |
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513 keepalive, &ls[i].addr_text); |
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514 } |
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515 } |
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516 |
4522 | 517 #if (NGX_HAVE_KEEPALIVE_TUNABLE) |
4323
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518 |
c4513d4dd024
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519 if (ls[i].keepidle) { |
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520 if (setsockopt(ls[i].fd, IPPROTO_TCP, TCP_KEEPIDLE, |
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Added the "so_keepalive=" parameter to the "listen" directive.
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521 (const void *) &ls[i].keepidle, sizeof(int)) |
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522 == -1) |
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523 { |
c4513d4dd024
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524 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno, |
c4513d4dd024
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525 "setsockopt(TCP_KEEPIDLE, %d) %V failed, ignored", |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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526 ls[i].keepidle, &ls[i].addr_text); |
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527 } |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
528 } |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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529 |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
530 if (ls[i].keepintvl) { |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
531 if (setsockopt(ls[i].fd, IPPROTO_TCP, TCP_KEEPINTVL, |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
532 (const void *) &ls[i].keepintvl, sizeof(int)) |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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533 == -1) |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
534 { |
c4513d4dd024
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|
535 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno, |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
536 "setsockopt(TCP_KEEPINTVL, %d) %V failed, ignored", |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
537 ls[i].keepintvl, &ls[i].addr_text); |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
538 } |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
539 } |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
540 |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
541 if (ls[i].keepcnt) { |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
542 if (setsockopt(ls[i].fd, IPPROTO_TCP, TCP_KEEPCNT, |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
543 (const void *) &ls[i].keepcnt, sizeof(int)) |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
544 == -1) |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
545 { |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
546 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno, |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
547 "setsockopt(TCP_KEEPCNT, %d) %V failed, ignored", |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
548 ls[i].keepcnt, &ls[i].addr_text); |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
549 } |
c4513d4dd024
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550 } |
c4513d4dd024
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551 |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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552 #endif |
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553 |
3676 | 554 #if (NGX_HAVE_SETFIB) |
555 if (ls[i].setfib != -1) { | |
556 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_SETFIB, | |
557 (const void *) &ls[i].setfib, sizeof(int)) | |
558 == -1) | |
559 { | |
560 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno, | |
561 "setsockopt(SO_SETFIB, %d) %V failed, ignored", | |
562 ls[i].setfib, &ls[i].addr_text); | |
563 } | |
564 } | |
565 #endif | |
566 | |
635 | 567 #if 0 |
568 if (1) { | |
569 int tcp_nodelay = 1; | |
570 | |
571 if (setsockopt(ls[i].fd, IPPROTO_TCP, TCP_NODELAY, | |
572 (const void *) &tcp_nodelay, sizeof(int)) | |
573 == -1) | |
574 { | |
575 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno, | |
576 "setsockopt(TCP_NODELAY) %V failed, ignored", | |
577 &ls[i].addr_text); | |
578 } | |
579 } | |
580 #endif | |
581 | |
563 | 582 if (ls[i].listen) { |
1225 | 583 |
584 /* change backlog via listen() */ | |
585 | |
563 | 586 if (listen(ls[i].fd, ls[i].backlog) == -1) { |
587 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno, | |
1222 | 588 "listen() to %V, backlog %d failed, ignored", |
589 &ls[i].addr_text, ls[i].backlog); | |
563 | 590 } |
591 } | |
592 | |
593 /* | |
594 * setting deferred mode should be last operation on socket, | |
595 * because code may prematurely continue cycle on failure | |
596 */ | |
597 | |
598 #if (NGX_HAVE_DEFERRED_ACCEPT) | |
599 | |
600 #ifdef SO_ACCEPTFILTER | |
601 | |
627 | 602 if (ls[i].delete_deferred) { |
603 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_ACCEPTFILTER, NULL, 0) | |
604 == -1) | |
563 | 605 { |
606 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
607 "setsockopt(SO_ACCEPTFILTER, NULL) " | |
608 "for %V failed, ignored", | |
627 | 609 &ls[i].addr_text); |
563 | 610 |
627 | 611 if (ls[i].accept_filter) { |
563 | 612 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
613 "could not change the accept filter " | |
614 "to \"%s\" for %V, ignored", | |
627 | 615 ls[i].accept_filter, &ls[i].addr_text); |
563 | 616 } |
617 | |
618 continue; | |
619 } | |
620 | |
627 | 621 ls[i].deferred_accept = 0; |
563 | 622 } |
623 | |
627 | 624 if (ls[i].add_deferred) { |
563 | 625 ngx_memzero(&af, sizeof(struct accept_filter_arg)); |
626 (void) ngx_cpystrn((u_char *) af.af_name, | |
627 | 627 (u_char *) ls[i].accept_filter, 16); |
563 | 628 |
627 | 629 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_ACCEPTFILTER, |
563 | 630 &af, sizeof(struct accept_filter_arg)) |
631 == -1) | |
632 { | |
633 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
634 "setsockopt(SO_ACCEPTFILTER, \"%s\") " | |
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635 "for %V failed, ignored", |
627 | 636 ls[i].accept_filter, &ls[i].addr_text); |
563 | 637 continue; |
638 } | |
639 | |
627 | 640 ls[i].deferred_accept = 1; |
563 | 641 } |
642 | |
643 #endif | |
644 | |
645 #ifdef TCP_DEFER_ACCEPT | |
646 | |
627 | 647 if (ls[i].add_deferred || ls[i].delete_deferred) { |
563 | 648 |
627 | 649 if (ls[i].add_deferred) { |
650 timeout = (int) (ls[i].post_accept_timeout / 1000); | |
563 | 651 |
652 } else { | |
653 timeout = 0; | |
654 } | |
655 | |
627 | 656 if (setsockopt(ls[i].fd, IPPROTO_TCP, TCP_DEFER_ACCEPT, |
563 | 657 &timeout, sizeof(int)) |
658 == -1) | |
659 { | |
660 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
661 "setsockopt(TCP_DEFER_ACCEPT, %d) for %V failed, " | |
662 "ignored", | |
627 | 663 timeout, &ls[i].addr_text); |
563 | 664 |
665 continue; | |
666 } | |
667 } | |
668 | |
627 | 669 if (ls[i].add_deferred) { |
670 ls[i].deferred_accept = 1; | |
563 | 671 } |
672 | |
673 #endif | |
674 | |
675 #endif /* NGX_HAVE_DEFERRED_ACCEPT */ | |
676 } | |
677 | |
678 return; | |
679 } | |
680 | |
681 | |
682 void | |
521 | 683 ngx_close_listening_sockets(ngx_cycle_t *cycle) |
218
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684 { |
543 | 685 ngx_uint_t i; |
686 ngx_listening_t *ls; | |
687 ngx_connection_t *c; | |
218
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688 |
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689 if (ngx_event_flags & NGX_USE_IOCP_EVENT) { |
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690 return; |
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691 } |
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692 |
303
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693 ngx_accept_mutex_held = 0; |
611 | 694 ngx_use_accept_mutex = 0; |
303
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695 |
218
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696 ls = cycle->listening.elts; |
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697 for (i = 0; i < cycle->listening.nelts; i++) { |
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698 |
543 | 699 c = ls[i].connection; |
218
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700 |
2725 | 701 if (c) { |
702 if (c->read->active) { | |
703 if (ngx_event_flags & NGX_USE_RTSIG_EVENT) { | |
704 ngx_del_conn(c, NGX_CLOSE_EVENT); | |
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705 |
2725 | 706 } else if (ngx_event_flags & NGX_USE_EPOLL_EVENT) { |
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707 |
2725 | 708 /* |
709 * it seems that Linux-2.6.x OpenVZ sends events | |
710 * for closed shared listening sockets unless | |
711 * the events was explicity deleted | |
712 */ | |
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713 |
2725 | 714 ngx_del_event(c->read, NGX_READ_EVENT, 0); |
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715 |
2725 | 716 } else { |
717 ngx_del_event(c->read, NGX_READ_EVENT, NGX_CLOSE_EVENT); | |
718 } | |
317
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719 } |
2725 | 720 |
721 ngx_free_connection(c); | |
722 | |
723 c->fd = (ngx_socket_t) -1; | |
317
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724 } |
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725 |
563 | 726 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0, |
727 "close listening %V #%d ", &ls[i].addr_text, ls[i].fd); | |
728 | |
543 | 729 if (ngx_close_socket(ls[i].fd) == -1) { |
218
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730 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno, |
461 | 731 ngx_close_socket_n " %V failed", &ls[i].addr_text); |
218
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732 } |
2928 | 733 |
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734 #if (NGX_HAVE_UNIX_DOMAIN) |
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735 |
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736 if (ls[i].sockaddr->sa_family == AF_UNIX |
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737 && ngx_process <= NGX_PROCESS_MASTER |
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738 && ngx_new_binary == 0) |
3230
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739 { |
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740 u_char *name = ls[i].addr_text.data + sizeof("unix:") - 1; |
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741 |
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742 if (ngx_delete_file(name) == -1) { |
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743 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno, |
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744 ngx_delete_file_n " %s failed", name); |
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745 } |
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746 } |
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747 |
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748 #endif |
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749 |
2928 | 750 ls[i].fd = (ngx_socket_t) -1; |
543 | 751 } |
752 } | |
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753 |
543 | 754 |
755 ngx_connection_t * | |
756 ngx_get_connection(ngx_socket_t s, ngx_log_t *log) | |
757 { | |
561 | 758 ngx_uint_t instance; |
759 ngx_event_t *rev, *wev; | |
760 ngx_connection_t *c; | |
543 | 761 |
762 /* disable warning: Win32 SOCKET is u_int while UNIX socket is int */ | |
763 | |
764 if (ngx_cycle->files && (ngx_uint_t) s >= ngx_cycle->files_n) { | |
765 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
766 "the new socket has number %d, " | |
767 "but only %ui files are available", | |
768 s, ngx_cycle->files_n); | |
769 return NULL; | |
770 } | |
771 | |
772 /* ngx_mutex_lock */ | |
773 | |
774 c = ngx_cycle->free_connections; | |
775 | |
776 if (c == NULL) { | |
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777 ngx_drain_connections(); |
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778 c = ngx_cycle->free_connections; |
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779 } |
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780 |
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781 if (c == NULL) { |
543 | 782 ngx_log_error(NGX_LOG_ALERT, log, 0, |
2254 | 783 "%ui worker_connections are not enough", |
543 | 784 ngx_cycle->connection_n); |
785 | |
786 /* ngx_mutex_unlock */ | |
787 | |
788 return NULL; | |
789 } | |
790 | |
791 ngx_cycle->free_connections = c->data; | |
792 ngx_cycle->free_connection_n--; | |
793 | |
794 /* ngx_mutex_unlock */ | |
795 | |
796 if (ngx_cycle->files) { | |
797 ngx_cycle->files[s] = c; | |
798 } | |
799 | |
561 | 800 rev = c->read; |
801 wev = c->write; | |
802 | |
803 ngx_memzero(c, sizeof(ngx_connection_t)); | |
804 | |
805 c->read = rev; | |
806 c->write = wev; | |
807 c->fd = s; | |
808 c->log = log; | |
809 | |
810 instance = rev->instance; | |
811 | |
812 ngx_memzero(rev, sizeof(ngx_event_t)); | |
813 ngx_memzero(wev, sizeof(ngx_event_t)); | |
814 | |
815 rev->instance = !instance; | |
816 wev->instance = !instance; | |
817 | |
818 rev->index = NGX_INVALID_INDEX; | |
819 wev->index = NGX_INVALID_INDEX; | |
820 | |
821 rev->data = c; | |
822 wev->data = c; | |
823 | |
824 wev->write = 1; | |
825 | |
543 | 826 return c; |
827 } | |
828 | |
829 | |
830 void | |
831 ngx_free_connection(ngx_connection_t *c) | |
832 { | |
833 /* ngx_mutex_lock */ | |
834 | |
835 c->data = ngx_cycle->free_connections; | |
836 ngx_cycle->free_connections = c; | |
837 ngx_cycle->free_connection_n++; | |
838 | |
839 /* ngx_mutex_unlock */ | |
840 | |
841 if (ngx_cycle->files) { | |
842 ngx_cycle->files[c->fd] = NULL; | |
218
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843 } |
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844 } |
253
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845 |
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846 |
521 | 847 void |
848 ngx_close_connection(ngx_connection_t *c) | |
417
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849 { |
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850 ngx_err_t err; |
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851 ngx_uint_t log_error, level; |
417
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852 ngx_socket_t fd; |
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853 |
479 | 854 if (c->fd == -1) { |
417
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855 ngx_log_error(NGX_LOG_ALERT, c->log, 0, "connection already closed"); |
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856 return; |
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857 } |
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858 |
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859 if (c->read->timer_set) { |
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860 ngx_del_timer(c->read); |
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861 } |
577 | 862 |
417
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863 if (c->write->timer_set) { |
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864 ngx_del_timer(c->write); |
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865 } |
577 | 866 |
417
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867 if (ngx_del_conn) { |
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868 ngx_del_conn(c, NGX_CLOSE_EVENT); |
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869 |
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870 } else { |
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871 if (c->read->active || c->read->disabled) { |
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872 ngx_del_event(c->read, NGX_READ_EVENT, NGX_CLOSE_EVENT); |
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873 } |
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346
diff
changeset
|
874 |
0526206251f6
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346
diff
changeset
|
875 if (c->write->active || c->write->disabled) { |
0526206251f6
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346
diff
changeset
|
876 ngx_del_event(c->write, NGX_WRITE_EVENT, NGX_CLOSE_EVENT); |
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346
diff
changeset
|
877 } |
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346
diff
changeset
|
878 } |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
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parents:
346
diff
changeset
|
879 |
0526206251f6
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346
diff
changeset
|
880 #if (NGX_THREADS) |
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parents:
346
diff
changeset
|
881 |
0526206251f6
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parents:
346
diff
changeset
|
882 /* |
0526206251f6
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346
diff
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|
883 * we have to clean the connection information before the closing |
0526206251f6
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346
diff
changeset
|
884 * because another thread may reopen the same file descriptor |
0526206251f6
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parents:
346
diff
changeset
|
885 * before we clean the connection |
0526206251f6
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parents:
346
diff
changeset
|
886 */ |
0526206251f6
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parents:
346
diff
changeset
|
887 |
563 | 888 ngx_mutex_lock(ngx_posted_events_mutex); |
417
0526206251f6
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parents:
346
diff
changeset
|
889 |
563 | 890 if (c->read->prev) { |
891 ngx_delete_posted_event(c->read); | |
892 } | |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
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parents:
346
diff
changeset
|
893 |
563 | 894 if (c->write->prev) { |
895 ngx_delete_posted_event(c->write); | |
896 } | |
417
0526206251f6
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parents:
346
diff
changeset
|
897 |
563 | 898 c->read->closed = 1; |
899 c->write->closed = 1; | |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
900 |
563 | 901 if (c->single_connection) { |
902 ngx_unlock(&c->lock); | |
903 c->read->locked = 0; | |
904 c->write->locked = 0; | |
905 } | |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
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parents:
346
diff
changeset
|
906 |
563 | 907 ngx_mutex_unlock(ngx_posted_events_mutex); |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
908 |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
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parents:
346
diff
changeset
|
909 #else |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
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parents:
346
diff
changeset
|
910 |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
911 if (c->read->prev) { |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
912 ngx_delete_posted_event(c->read); |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
913 } |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
914 |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
915 if (c->write->prev) { |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
916 ngx_delete_posted_event(c->write); |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
917 } |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
918 |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
919 c->read->closed = 1; |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
920 c->write->closed = 1; |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
921 |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
922 #endif |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
923 |
3880
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
924 ngx_reusable_connection(c, 0); |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
925 |
1917
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
926 log_error = c->log_error; |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
927 |
543 | 928 ngx_free_connection(c); |
929 | |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
930 fd = c->fd; |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
931 c->fd = (ngx_socket_t) -1; |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
932 |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
933 if (ngx_close_socket(fd) == -1) { |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
934 |
1917
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
935 err = ngx_socket_errno; |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
936 |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
937 if (err == NGX_ECONNRESET || err == NGX_ENOTCONN) { |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
938 |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
939 switch (log_error) { |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
940 |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
941 case NGX_ERROR_INFO: |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
942 level = NGX_LOG_INFO; |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
943 break; |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
944 |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
945 case NGX_ERROR_ERR: |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
946 level = NGX_LOG_ERR; |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
947 break; |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
948 |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
949 default: |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
950 level = NGX_LOG_CRIT; |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
951 } |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
952 |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
953 } else { |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
954 level = NGX_LOG_CRIT; |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
955 } |
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
956 |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
957 /* we use ngx_cycle->log because c->log was in c->pool */ |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
958 |
1917
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
959 ngx_log_error(level, ngx_cycle->log, err, |
1435 | 960 ngx_close_socket_n " %d failed", fd); |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
961 } |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
962 } |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
963 |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
964 |
3880
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
965 void |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
966 ngx_reusable_connection(ngx_connection_t *c, ngx_uint_t reusable) |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
967 { |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
968 ngx_log_debug1(NGX_LOG_DEBUG_CORE, c->log, 0, |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
969 "reusable connection: %ui", reusable); |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
970 |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
971 if (c->reusable) { |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
972 ngx_queue_remove(&c->queue); |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
973 } |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
974 |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
975 c->reusable = reusable; |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
976 |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
977 if (reusable) { |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
978 /* need cast as ngx_cycle is volatile */ |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
979 |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
980 ngx_queue_insert_head( |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
981 (ngx_queue_t *) &ngx_cycle->reusable_connections_queue, &c->queue); |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
982 } |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
983 } |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
984 |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
985 |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
986 static void |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
987 ngx_drain_connections(void) |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
988 { |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
989 ngx_int_t i; |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
990 ngx_queue_t *q; |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
991 ngx_connection_t *c; |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
992 |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
993 for (i = 0; i < 32; i++) { |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
994 if (ngx_queue_empty(&ngx_cycle->reusable_connections_queue)) { |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
995 break; |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
996 } |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
997 |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
998 q = ngx_queue_last(&ngx_cycle->reusable_connections_queue); |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
999 c = ngx_queue_data(q, ngx_connection_t, queue); |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
1000 |
e3cb8e27e413
reuse keepalive connections if there are no free worker connections
Igor Sysoev <igor@sysoev.ru>
parents:
3676
diff
changeset
|
1001 ngx_log_debug0(NGX_LOG_DEBUG_CORE, c->log, 0, |
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1002 "reusing connection"); |
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|
1003 |
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1004 c->close = 1; |
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|
1005 c->read->handler(c->read); |
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|
1006 } |
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|
1007 } |
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|
1008 |
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|
1009 |
521 | 1010 ngx_int_t |
2854
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ngx_connection_local_sockaddr()
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|
1011 ngx_connection_local_sockaddr(ngx_connection_t *c, ngx_str_t *s, |
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ngx_connection_local_sockaddr()
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|
1012 ngx_uint_t port) |
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ngx_connection_local_sockaddr()
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|
1013 { |
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1014 socklen_t len; |
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ngx_connection_local_sockaddr()
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|
1015 ngx_uint_t addr; |
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|
1016 u_char sa[NGX_SOCKADDRLEN]; |
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ngx_connection_local_sockaddr()
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|
1017 struct sockaddr_in *sin; |
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ngx_connection_local_sockaddr()
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|
1018 #if (NGX_HAVE_INET6) |
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ngx_connection_local_sockaddr()
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|
1019 ngx_uint_t i; |
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ngx_connection_local_sockaddr()
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|
1020 struct sockaddr_in6 *sin6; |
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ngx_connection_local_sockaddr()
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|
1021 #endif |
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|
1022 |
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|
1023 switch (c->local_sockaddr->sa_family) { |
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ngx_connection_local_sockaddr()
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|
1024 |
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|
1025 #if (NGX_HAVE_INET6) |
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ngx_connection_local_sockaddr()
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|
1026 case AF_INET6: |
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ngx_connection_local_sockaddr()
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|
1027 sin6 = (struct sockaddr_in6 *) c->local_sockaddr; |
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ngx_connection_local_sockaddr()
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|
1028 |
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|
1029 for (addr = 0, i = 0; addr == 0 && i < 16; i++) { |
d788477f5a67
ngx_connection_local_sockaddr()
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|
1030 addr |= sin6->sin6_addr.s6_addr[i]; |
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ngx_connection_local_sockaddr()
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|
1031 } |
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ngx_connection_local_sockaddr()
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|
1032 |
d788477f5a67
ngx_connection_local_sockaddr()
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|
1033 break; |
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ngx_connection_local_sockaddr()
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|
1034 #endif |
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|
1035 |
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|
1036 default: /* AF_INET */ |
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|
1037 sin = (struct sockaddr_in *) c->local_sockaddr; |
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|
1038 addr = sin->sin_addr.s_addr; |
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ngx_connection_local_sockaddr()
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|
1039 break; |
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ngx_connection_local_sockaddr()
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|
1040 } |
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|
1041 |
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|
1042 if (addr == 0) { |
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ngx_connection_local_sockaddr()
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|
1043 |
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|
1044 len = NGX_SOCKADDRLEN; |
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|
1045 |
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|
1046 if (getsockname(c->fd, (struct sockaddr *) &sa, &len) == -1) { |
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ngx_connection_local_sockaddr()
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|
1047 ngx_connection_error(c, ngx_socket_errno, "getsockname() failed"); |
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|
1048 return NGX_ERROR; |
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|
1049 } |
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|
1050 |
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diff
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|
1051 c->local_sockaddr = ngx_palloc(c->pool, len); |
d788477f5a67
ngx_connection_local_sockaddr()
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parents:
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diff
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|
1052 if (c->local_sockaddr == NULL) { |
d788477f5a67
ngx_connection_local_sockaddr()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
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|
1053 return NGX_ERROR; |
d788477f5a67
ngx_connection_local_sockaddr()
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parents:
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diff
changeset
|
1054 } |
d788477f5a67
ngx_connection_local_sockaddr()
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|
1055 |
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ngx_connection_local_sockaddr()
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
1056 ngx_memcpy(c->local_sockaddr, &sa, len); |
d788477f5a67
ngx_connection_local_sockaddr()
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parents:
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diff
changeset
|
1057 } |
d788477f5a67
ngx_connection_local_sockaddr()
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parents:
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diff
changeset
|
1058 |
d788477f5a67
ngx_connection_local_sockaddr()
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parents:
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diff
changeset
|
1059 if (s == NULL) { |
d788477f5a67
ngx_connection_local_sockaddr()
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parents:
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|
1060 return NGX_OK; |
d788477f5a67
ngx_connection_local_sockaddr()
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parents:
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diff
changeset
|
1061 } |
d788477f5a67
ngx_connection_local_sockaddr()
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parents:
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diff
changeset
|
1062 |
d788477f5a67
ngx_connection_local_sockaddr()
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diff
changeset
|
1063 s->len = ngx_sock_ntop(c->local_sockaddr, s->data, s->len, port); |
d788477f5a67
ngx_connection_local_sockaddr()
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|
1064 |
d788477f5a67
ngx_connection_local_sockaddr()
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changeset
|
1065 return NGX_OK; |
d788477f5a67
ngx_connection_local_sockaddr()
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parents:
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diff
changeset
|
1066 } |
d788477f5a67
ngx_connection_local_sockaddr()
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parents:
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diff
changeset
|
1067 |
d788477f5a67
ngx_connection_local_sockaddr()
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
1068 |
d788477f5a67
ngx_connection_local_sockaddr()
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parents:
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diff
changeset
|
1069 ngx_int_t |
521 | 1070 ngx_connection_error(ngx_connection_t *c, ngx_err_t err, char *text) |
253
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|
1071 { |
257
70e1c7d2b83d
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256
diff
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|
1072 ngx_uint_t level; |
253
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|
1073 |
2775 | 1074 /* Winsock may return NGX_ECONNABORTED instead of NGX_ECONNRESET */ |
2774
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parents:
2725
diff
changeset
|
1075 |
2775 | 1076 if ((err == NGX_ECONNRESET |
1077 #if (NGX_WIN32) | |
1078 || err == NGX_ECONNABORTED | |
2774
baad3036086e
Winsock uses ECONNABORTED instead of ECONNRESET
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1079 #endif |
2775 | 1080 ) && c->log_error == NGX_ERROR_IGNORE_ECONNRESET) |
2774
baad3036086e
Winsock uses ECONNABORTED instead of ECONNRESET
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parents:
2725
diff
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|
1081 { |
253
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|
1082 return 0; |
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|
1083 } |
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|
1084 |
2560
a7443674e429
ignore EINVAL from setsockopt() on Solaris
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parents:
2512
diff
changeset
|
1085 #if (NGX_SOLARIS) |
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ignore EINVAL from setsockopt() on Solaris
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parents:
2512
diff
changeset
|
1086 if (err == NGX_EINVAL && c->log_error == NGX_ERROR_IGNORE_EINVAL) { |
a7443674e429
ignore EINVAL from setsockopt() on Solaris
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parents:
2512
diff
changeset
|
1087 return 0; |
a7443674e429
ignore EINVAL from setsockopt() on Solaris
Igor Sysoev <igor@sysoev.ru>
parents:
2512
diff
changeset
|
1088 } |
a7443674e429
ignore EINVAL from setsockopt() on Solaris
Igor Sysoev <igor@sysoev.ru>
parents:
2512
diff
changeset
|
1089 #endif |
a7443674e429
ignore EINVAL from setsockopt() on Solaris
Igor Sysoev <igor@sysoev.ru>
parents:
2512
diff
changeset
|
1090 |
537 | 1091 if (err == 0 |
1092 || err == NGX_ECONNRESET | |
2774
baad3036086e
Winsock uses ECONNABORTED instead of ECONNRESET
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parents:
2725
diff
changeset
|
1093 #if (NGX_WIN32) |
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Winsock uses ECONNABORTED instead of ECONNRESET
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parents:
2725
diff
changeset
|
1094 || err == NGX_ECONNABORTED |
baad3036086e
Winsock uses ECONNABORTED instead of ECONNRESET
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parents:
2725
diff
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|
1095 #else |
278
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257
diff
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|
1096 || err == NGX_EPIPE |
0ba4821f4460
nginx-0.0.2-2004-03-04-10:04:55 import
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parents:
257
diff
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|
1097 #endif |
288
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parents:
282
diff
changeset
|
1098 || err == NGX_ENOTCONN |
587 | 1099 || err == NGX_ETIMEDOUT |
288
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282
diff
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|
1100 || err == NGX_ECONNREFUSED |
1869
192443881e51
add NGX_ENETDOWN, NGX_ENETUNREACH, and NGX_EHOSTDOWN
Igor Sysoev <igor@sysoev.ru>
parents:
1833
diff
changeset
|
1101 || err == NGX_ENETDOWN |
192443881e51
add NGX_ENETDOWN, NGX_ENETUNREACH, and NGX_EHOSTDOWN
Igor Sysoev <igor@sysoev.ru>
parents:
1833
diff
changeset
|
1102 || err == NGX_ENETUNREACH |
192443881e51
add NGX_ENETDOWN, NGX_ENETUNREACH, and NGX_EHOSTDOWN
Igor Sysoev <igor@sysoev.ru>
parents:
1833
diff
changeset
|
1103 || err == NGX_EHOSTDOWN |
288
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282
diff
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|
1104 || err == NGX_EHOSTUNREACH) |
278
0ba4821f4460
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parents:
257
diff
changeset
|
1105 { |
256
8e39cab6abd5
nginx-0.0.2-2004-02-10-19:23:38 import
Igor Sysoev <igor@sysoev.ru>
parents:
253
diff
changeset
|
1106 switch (c->log_error) { |
253
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242
diff
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|
1107 |
2560
a7443674e429
ignore EINVAL from setsockopt() on Solaris
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parents:
2512
diff
changeset
|
1108 case NGX_ERROR_IGNORE_EINVAL: |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
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parents:
256
diff
changeset
|
1109 case NGX_ERROR_IGNORE_ECONNRESET: |
253
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diff
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|
1110 case NGX_ERROR_INFO: |
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diff
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|
1111 level = NGX_LOG_INFO; |
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|
1112 break; |
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diff
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|
1113 |
3151
ad3ddfd06e7d
low default connection errors level from alert to error
Igor Sysoev <igor@sysoev.ru>
parents:
2928
diff
changeset
|
1114 default: |
253
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|
1115 level = NGX_LOG_ERR; |
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diff
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|
1116 } |
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diff
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|
1117 |
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242
diff
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|
1118 } else { |
1917
1b2e83c4886d
decrease log level of connection errors while closing socket
Igor Sysoev <igor@sysoev.ru>
parents:
1869
diff
changeset
|
1119 level = NGX_LOG_ALERT; |
253
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diff
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|
1120 } |
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diff
changeset
|
1121 |
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changeset
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1122 ngx_log_error(level, c->log, err, text); |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
242
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1123 |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
242
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1124 return NGX_ERROR; |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
242
diff
changeset
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1125 } |