Mercurial > hg > nginx
annotate src/event/ngx_event_connect.c @ 3271:fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 02 Nov 2009 15:24:02 +0000 |
parents | 042dcbaead66 |
children | d518c65ff0d4 |
rev | line source |
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441
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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5 |
86
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6 |
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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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10 #include <ngx_event_connect.h> |
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11 |
131
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12 |
487 | 13 ngx_int_t |
14 ngx_event_connect_peer(ngx_peer_connection_t *pc) | |
86
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15 { |
543 | 16 int rc; |
1470 | 17 ngx_int_t event; |
543 | 18 ngx_err_t err; |
884 | 19 ngx_uint_t level; |
543 | 20 ngx_socket_t s; |
21 ngx_event_t *rev, *wev; | |
22 ngx_connection_t *c; | |
122
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23 |
884 | 24 rc = pc->get(pc, pc->data); |
25 if (rc != NGX_OK) { | |
26 return rc; | |
121
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27 } |
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28 |
884 | 29 s = ngx_socket(pc->sockaddr->sa_family, SOCK_STREAM, 0); |
86
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30 |
884 | 31 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, pc->log, 0, "socket %d", s); |
509 | 32 |
86
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33 if (s == -1) { |
121
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34 ngx_log_error(NGX_LOG_ALERT, pc->log, ngx_socket_errno, |
86
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35 ngx_socket_n " failed"); |
119
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36 return NGX_ERROR; |
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37 } |
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38 |
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39 |
543 | 40 c = ngx_get_connection(s, pc->log); |
323
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41 |
543 | 42 if (c == NULL) { |
323
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43 if (ngx_close_socket(s) == -1) { |
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44 ngx_log_error(NGX_LOG_ALERT, pc->log, ngx_socket_errno, |
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45 ngx_close_socket_n "failed"); |
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46 } |
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47 |
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48 return NGX_ERROR; |
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49 } |
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50 |
121
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51 if (pc->rcvbuf) { |
86
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52 if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, |
563 | 53 (const void *) &pc->rcvbuf, sizeof(int)) == -1) |
54 { | |
121
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55 ngx_log_error(NGX_LOG_ALERT, pc->log, ngx_socket_errno, |
86
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56 "setsockopt(SO_RCVBUF) failed"); |
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57 goto failed; |
86
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58 } |
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59 } |
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60 |
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61 if (ngx_nonblocking(s) == -1) { |
121
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62 ngx_log_error(NGX_LOG_ALERT, pc->log, ngx_socket_errno, |
86
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63 ngx_nonblocking_n " failed"); |
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64 |
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65 goto failed; |
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66 } |
543 | 67 |
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68 if (pc->local) { |
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69 if (bind(s, pc->local->sockaddr, pc->local->socklen) == -1) { |
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70 ngx_log_error(NGX_LOG_CRIT, pc->log, ngx_socket_errno, |
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71 "bind(%V) failed", &pc->local->name); |
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72 |
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73 goto failed; |
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74 } |
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75 } |
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76 |
543 | 77 c->recv = ngx_recv; |
78 c->send = ngx_send; | |
577 | 79 c->recv_chain = ngx_recv_chain; |
543 | 80 c->send_chain = ngx_send_chain; |
483 | 81 |
1397
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82 c->sendfile = 1; |
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83 |
543 | 84 c->log_error = pc->log_error; |
119
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85 |
884 | 86 if (pc->sockaddr->sa_family != AF_INET) { |
543 | 87 c->tcp_nopush = NGX_TCP_NOPUSH_DISABLED; |
88 c->tcp_nodelay = NGX_TCP_NODELAY_DISABLED; | |
583 | 89 |
90 #if (NGX_SOLARIS) | |
91 /* Solaris's sendfilev() supports AF_NCA, AF_INET, and AF_INET6 */ | |
92 c->sendfile = 0; | |
93 #endif | |
121
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94 } |
119
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95 |
561 | 96 rev = c->read; |
97 wev = c->write; | |
86
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98 |
191
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99 rev->log = pc->log; |
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100 wev->log = pc->log; |
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101 |
121
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102 pc->connection = c; |
119
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103 |
257
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104 /* |
561 | 105 * TODO: MT: - ngx_atomic_fetch_add() |
257
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106 * or protection by critical section or mutex |
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107 * |
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108 * TODO: MP: - allocated in a shared memory |
561 | 109 * - ngx_atomic_fetch_add() |
257
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110 * or protection by critical section or mutex |
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111 */ |
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112 |
561 | 113 c->number = ngx_atomic_fetch_add(ngx_connection_counter, 1); |
257
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114 |
377
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115 #if (NGX_THREADS) |
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116 rev->lock = pc->lock; |
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117 wev->lock = pc->lock; |
380
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118 rev->own_lock = &c->lock; |
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119 wev->own_lock = &c->lock; |
377
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120 #endif |
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121 |
121
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122 if (ngx_add_conn) { |
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123 if (ngx_add_conn(c) == NGX_ERROR) { |
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124 goto failed; |
121
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125 } |
577 | 126 } |
121
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127 |
543 | 128 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, pc->log, 0, |
884 | 129 "connect to %V, fd:%d #%d", pc->name, s, c->number); |
137
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130 |
884 | 131 rc = connect(s, pc->sockaddr, pc->socklen); |
122
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132 |
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133 if (rc == -1) { |
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134 err = ngx_socket_errno; |
186
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135 |
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136 |
2117
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137 if (err != NGX_EINPROGRESS |
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138 #if (NGX_WIN32) |
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139 /* Winsock returns WSAEWOULDBLOCK (NGX_EAGAIN) */ |
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140 && err != NGX_EAGAIN |
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changeset
|
141 #endif |
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parents:
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diff
changeset
|
142 ) |
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parents:
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diff
changeset
|
143 { |
1869
192443881e51
add NGX_ENETDOWN, NGX_ENETUNREACH, and NGX_EHOSTDOWN
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1470
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changeset
|
144 if (err == NGX_ECONNREFUSED |
2117
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|
145 #if (NGX_LINUX) |
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|
146 /* |
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parents:
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diff
changeset
|
147 * Linux returns EAGAIN instead of ECONNREFUSED |
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148 * for unix sockets if listen queue is full |
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149 */ |
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150 || err == NGX_EAGAIN |
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parents:
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changeset
|
151 #endif |
2540 | 152 || err == NGX_ECONNRESET |
1869
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add NGX_ENETDOWN, NGX_ENETUNREACH, and NGX_EHOSTDOWN
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153 || err == NGX_ENETDOWN |
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add NGX_ENETDOWN, NGX_ENETUNREACH, and NGX_EHOSTDOWN
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154 || err == NGX_ENETUNREACH |
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add NGX_ENETDOWN, NGX_ENETUNREACH, and NGX_EHOSTDOWN
Igor Sysoev <igor@sysoev.ru>
parents:
1470
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changeset
|
155 || err == NGX_EHOSTDOWN |
192443881e51
add NGX_ENETDOWN, NGX_ENETUNREACH, and NGX_EHOSTDOWN
Igor Sysoev <igor@sysoev.ru>
parents:
1470
diff
changeset
|
156 || err == NGX_EHOSTUNREACH) |
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add NGX_ENETDOWN, NGX_ENETUNREACH, and NGX_EHOSTDOWN
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parents:
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changeset
|
157 { |
541 | 158 level = NGX_LOG_ERR; |
1869
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add NGX_ENETDOWN, NGX_ENETUNREACH, and NGX_EHOSTDOWN
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|
159 |
541 | 160 } else { |
161 level = NGX_LOG_CRIT; | |
162 } | |
487 | 163 |
541 | 164 ngx_log_error(level, c->log, err, "connect() to %V failed", |
884 | 165 pc->name); |
139
54307053f185
nginx-0.0.1-2003-10-07-19:30:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
137
diff
changeset
|
166 |
543 | 167 return NGX_DECLINED; |
122
cd91e4a1ad0d
nginx-0.0.1-2003-07-23-17:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
121
diff
changeset
|
168 } |
cd91e4a1ad0d
nginx-0.0.1-2003-07-23-17:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
121
diff
changeset
|
169 } |
cd91e4a1ad0d
nginx-0.0.1-2003-07-23-17:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
121
diff
changeset
|
170 |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
323
diff
changeset
|
171 if (ngx_add_conn) { |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
323
diff
changeset
|
172 if (rc == -1) { |
487 | 173 |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
323
diff
changeset
|
174 /* NGX_EINPROGRESS */ |
487 | 175 |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
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parents:
323
diff
changeset
|
176 return NGX_AGAIN; |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
323
diff
changeset
|
177 } |
577 | 178 |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
323
diff
changeset
|
179 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, pc->log, 0, "connected"); |
483 | 180 |
181 wev->ready = 1; | |
182 | |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
323
diff
changeset
|
183 return NGX_OK; |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
323
diff
changeset
|
184 } |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
323
diff
changeset
|
185 |
164
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
162
diff
changeset
|
186 if (ngx_event_flags & NGX_USE_AIO_EVENT) { |
167
8aef3c72e5da
nginx-0.0.1-2003-10-30-19:51:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
187 |
455 | 188 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, pc->log, ngx_socket_errno, |
189 "connect(): %d", rc); | |
190 | |
164
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
162
diff
changeset
|
191 /* aio, iocp */ |
167
8aef3c72e5da
nginx-0.0.1-2003-10-30-19:51:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
192 |
8aef3c72e5da
nginx-0.0.1-2003-10-30-19:51:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
193 if (ngx_blocking(s) == -1) { |
8aef3c72e5da
nginx-0.0.1-2003-10-30-19:51:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
194 ngx_log_error(NGX_LOG_ALERT, pc->log, ngx_socket_errno, |
8aef3c72e5da
nginx-0.0.1-2003-10-30-19:51:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
195 ngx_blocking_n " failed"); |
3271
fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
Igor Sysoev <igor@sysoev.ru>
parents:
2540
diff
changeset
|
196 goto failed; |
167
8aef3c72e5da
nginx-0.0.1-2003-10-30-19:51:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
197 } |
8aef3c72e5da
nginx-0.0.1-2003-10-30-19:51:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
198 |
8aef3c72e5da
nginx-0.0.1-2003-10-30-19:51:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
199 /* |
487 | 200 * FreeBSD's aio allows to post an operation on non-connected socket. |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
169
diff
changeset
|
201 * NT does not support it. |
577 | 202 * |
169
edf29bb717da
nginx-0.0.1-2003-10-31-19:05:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
168
diff
changeset
|
203 * TODO: check in Win32, etc. As workaround we can use NGX_ONESHOT_EVENT |
167
8aef3c72e5da
nginx-0.0.1-2003-10-30-19:51:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
204 */ |
577 | 205 |
166
389d7ee9fa60
nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
206 rev->ready = 1; |
164
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
162
diff
changeset
|
207 wev->ready = 1; |
166
389d7ee9fa60
nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
208 |
164
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
162
diff
changeset
|
209 return NGX_OK; |
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
162
diff
changeset
|
210 } |
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
162
diff
changeset
|
211 |
487 | 212 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) { |
213 | |
214 /* kqueue */ | |
215 | |
137
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
216 event = NGX_CLEAR_EVENT; |
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
217 |
487 | 218 } else { |
219 | |
220 /* select, poll, /dev/poll */ | |
221 | |
137
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
222 event = NGX_LEVEL_EVENT; |
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
223 } |
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
224 |
162
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
161
diff
changeset
|
225 if (ngx_add_event(rev, NGX_READ_EVENT, event) != NGX_OK) { |
3271
fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
Igor Sysoev <igor@sysoev.ru>
parents:
2540
diff
changeset
|
226 goto failed; |
162
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
161
diff
changeset
|
227 } |
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
161
diff
changeset
|
228 |
137
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
229 if (rc == -1) { |
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
230 |
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
231 /* NGX_EINPROGRESS */ |
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
232 |
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
233 if (ngx_add_event(wev, NGX_WRITE_EVENT, event) != NGX_OK) { |
3271
fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
Igor Sysoev <igor@sysoev.ru>
parents:
2540
diff
changeset
|
234 goto failed; |
137
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
235 } |
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
236 |
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
237 return NGX_AGAIN; |
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
238 } |
2a615b036870
nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
239 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
194
diff
changeset
|
240 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, pc->log, 0, "connected"); |
189
c966c09be66b
nginx-0.0.1-2003-11-18-19:49:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
186
diff
changeset
|
241 |
148
5afee0074707
nginx-0.0.1-2003-10-17-00:19:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
242 wev->ready = 1; |
5afee0074707
nginx-0.0.1-2003-10-17-00:19:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
243 |
136
da00cde00e8a
nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
131
diff
changeset
|
244 return NGX_OK; |
3271
fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
Igor Sysoev <igor@sysoev.ru>
parents:
2540
diff
changeset
|
245 |
fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
Igor Sysoev <igor@sysoev.ru>
parents:
2540
diff
changeset
|
246 failed: |
fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
Igor Sysoev <igor@sysoev.ru>
parents:
2540
diff
changeset
|
247 |
fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
Igor Sysoev <igor@sysoev.ru>
parents:
2540
diff
changeset
|
248 ngx_free_connection(c); |
fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
Igor Sysoev <igor@sysoev.ru>
parents:
2540
diff
changeset
|
249 |
fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
Igor Sysoev <igor@sysoev.ru>
parents:
2540
diff
changeset
|
250 if (ngx_close_socket(s) == -1) { |
fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
Igor Sysoev <igor@sysoev.ru>
parents:
2540
diff
changeset
|
251 ngx_log_error(NGX_LOG_ALERT, pc->log, ngx_socket_errno, |
fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
Igor Sysoev <igor@sysoev.ru>
parents:
2540
diff
changeset
|
252 ngx_close_socket_n " failed"); |
fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
Igor Sysoev <igor@sysoev.ru>
parents:
2540
diff
changeset
|
253 } |
fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
Igor Sysoev <igor@sysoev.ru>
parents:
2540
diff
changeset
|
254 |
fcd98af88df3
proxy_bind, fastcgi_bind, and memcached_bind
Igor Sysoev <igor@sysoev.ru>
parents:
2540
diff
changeset
|
255 return NGX_ERROR; |
119
cd54bcbaf3b5
nginx-0.0.1-2003-07-21-01:15:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
256 } |
131
049e78b1f852
nginx-0.0.1-2003-08-14-10:00:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
124
diff
changeset
|
257 |
049e78b1f852
nginx-0.0.1-2003-08-14-10:00:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
124
diff
changeset
|
258 |
884 | 259 ngx_int_t |
260 ngx_event_get_peer(ngx_peer_connection_t *pc, void *data) | |
131
049e78b1f852
nginx-0.0.1-2003-08-14-10:00:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
124
diff
changeset
|
261 { |
884 | 262 return NGX_OK; |
131
049e78b1f852
nginx-0.0.1-2003-08-14-10:00:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
124
diff
changeset
|
263 } |