Mercurial > hg > nginx
annotate src/event/ngx_event_accept.c @ 3293:8abb88374c6c
Fix a bug introduced in r2032: After a child process has read a terminate
message from a channel, the process tries to read the channel again.
The kernel (at least FreeBSD) may preempt the process and sends a SIGIO
signal to a master process. The master process sends a new terminate message,
the kernel switches again to the the child process, and the child process
reads the messages instead of an EAGAIN error. And this may repeat over
and over. Being that the child process can not exit the cycle and test
the termination flag set by the message handler.
The fix disallow the master process to send a new terminate message on
SIGIO signal reception. It may send the message only on SIGALARM signal.
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Wed, 04 Nov 2009 19:41:08 +0000 |
| parents | 00d436dbf826 |
| children | 8a8eb335313d |
| rev | line source |
|---|---|
|
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
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11 |
| 573 | 12 static ngx_int_t ngx_enable_accept_events(ngx_cycle_t *cycle); |
| 13 static ngx_int_t ngx_disable_accept_events(ngx_cycle_t *cycle); | |
| 543 | 14 static void ngx_close_accepted_connection(ngx_connection_t *c); |
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15 |
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16 |
| 493 | 17 void |
| 18 ngx_event_accept(ngx_event_t *ev) | |
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19 { |
| 714 | 20 socklen_t socklen; |
| 483 | 21 ngx_err_t err; |
| 22 ngx_log_t *log; | |
| 23 ngx_socket_t s; | |
| 24 ngx_event_t *rev, *wev; | |
| 543 | 25 ngx_listening_t *ls; |
| 26 ngx_connection_t *c, *lc; | |
| 483 | 27 ngx_event_conf_t *ecf; |
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28 u_char sa[NGX_SOCKADDRLEN]; |
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29 |
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30 ecf = ngx_event_get_conf(ngx_cycle->conf_ctx, ngx_event_core_module); |
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31 |
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32 if (ngx_event_flags & NGX_USE_RTSIG_EVENT) { |
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33 ev->available = 1; |
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34 |
| 455 | 35 } else if (!(ngx_event_flags & NGX_USE_KQUEUE_EVENT)) { |
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36 ev->available = ecf->multi_accept; |
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37 } |
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38 |
| 543 | 39 lc = ev->data; |
| 40 ls = lc->listening; | |
| 41 ev->ready = 0; | |
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42 |
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43 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
| 543 | 44 "accept on %V, ready: %d", &ls->addr_text, ev->available); |
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45 |
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46 do { |
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47 socklen = NGX_SOCKADDRLEN; |
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48 |
| 714 | 49 s = accept(lc->fd, (struct sockaddr *) sa, &socklen); |
| 477 | 50 |
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51 if (s == -1) { |
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52 err = ngx_socket_errno; |
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53 |
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54 if (err == NGX_EAGAIN) { |
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55 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, err, |
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56 "accept() not ready"); |
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57 return; |
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58 } |
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59 |
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60 ngx_log_error((ngx_uint_t) ((err == NGX_ECONNABORTED) ? |
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61 NGX_LOG_ERR : NGX_LOG_ALERT), |
| 543 | 62 ev->log, err, "accept() failed"); |
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63 |
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64 if (err == NGX_ECONNABORTED) { |
| 455 | 65 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
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66 ev->available--; |
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67 } |
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68 |
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69 if (ev->available) { |
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70 continue; |
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71 } |
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72 } |
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73 |
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74 return; |
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75 } |
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76 |
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77 #if (NGX_STAT_STUB) |
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78 (void) ngx_atomic_fetch_add(ngx_stat_accepted, 1); |
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79 #endif |
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80 |
| 2255 | 81 ngx_accept_disabled = ngx_cycle->connection_n / 8 |
| 543 | 82 - ngx_cycle->free_connection_n; |
| 83 | |
| 84 c = ngx_get_connection(s, ev->log); | |
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85 |
| 543 | 86 if (c == NULL) { |
| 87 if (ngx_close_socket(s) == -1) { | |
| 88 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_socket_errno, | |
| 89 ngx_close_socket_n " failed"); | |
| 90 } | |
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91 |
| 543 | 92 return; |
| 93 } | |
| 94 | |
| 635 | 95 #if (NGX_STAT_STUB) |
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96 (void) ngx_atomic_fetch_add(ngx_stat_active, 1); |
| 635 | 97 #endif |
| 98 | |
| 543 | 99 c->pool = ngx_create_pool(ls->pool_size, ev->log); |
| 100 if (c->pool == NULL) { | |
| 101 ngx_close_accepted_connection(c); | |
| 102 return; | |
| 103 } | |
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104 |
| 714 | 105 c->sockaddr = ngx_palloc(c->pool, socklen); |
| 543 | 106 if (c->sockaddr == NULL) { |
| 107 ngx_close_accepted_connection(c); | |
| 108 return; | |
| 109 } | |
| 110 | |
| 714 | 111 ngx_memcpy(c->sockaddr, sa, socklen); |
| 543 | 112 |
| 113 log = ngx_palloc(c->pool, sizeof(ngx_log_t)); | |
| 114 if (log == NULL) { | |
| 115 ngx_close_accepted_connection(c); | |
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116 return; |
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117 } |
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118 |
| 487 | 119 /* set a blocking mode for aio and non-blocking mode for others */ |
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120 |
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121 if (ngx_inherited_nonblocking) { |
| 543 | 122 if (ngx_event_flags & NGX_USE_AIO_EVENT) { |
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123 if (ngx_blocking(s) == -1) { |
| 543 | 124 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_socket_errno, |
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125 ngx_blocking_n " failed"); |
| 543 | 126 ngx_close_accepted_connection(c); |
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127 return; |
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128 } |
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129 } |
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130 |
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131 } else { |
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132 if (!(ngx_event_flags & (NGX_USE_AIO_EVENT|NGX_USE_RTSIG_EVENT))) { |
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133 if (ngx_nonblocking(s) == -1) { |
| 543 | 134 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_socket_errno, |
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135 ngx_nonblocking_n " failed"); |
| 543 | 136 ngx_close_accepted_connection(c); |
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137 return; |
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138 } |
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139 } |
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140 } |
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141 |
| 543 | 142 *log = ls->log; |
| 143 | |
| 144 c->recv = ngx_recv; | |
| 145 c->send = ngx_send; | |
| 577 | 146 c->recv_chain = ngx_recv_chain; |
| 543 | 147 c->send_chain = ngx_send_chain; |
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148 |
| 543 | 149 c->log = log; |
| 150 c->pool->log = log; | |
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151 |
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2255
diff
changeset
|
152 c->socklen = socklen; |
| 543 | 153 c->listening = ls; |
|
2512
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a prelimiary IPv6 support, HTTP listen
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diff
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|
154 c->local_sockaddr = ls->sockaddr; |
| 543 | 155 |
| 156 c->unexpected_eof = 1; | |
| 157 | |
|
3230
a7491af45540
http listen unix domain sockets
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parents:
2951
diff
changeset
|
158 #if (NGX_HAVE_UNIX_DOMAIN) |
|
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parents:
2951
diff
changeset
|
159 if (c->sockaddr->sa_family == AF_UNIX) { |
|
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http listen unix domain sockets
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parents:
2951
diff
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|
160 c->tcp_nopush = NGX_TCP_NOPUSH_DISABLED; |
|
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parents:
2951
diff
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|
161 c->tcp_nodelay = NGX_TCP_NODELAY_DISABLED; |
|
a7491af45540
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parents:
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diff
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|
162 #if (NGX_SOLARIS) |
|
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diff
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163 /* Solaris's sendfilev() supports AF_NCA, AF_INET, and AF_INET6 */ |
|
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diff
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|
164 c->sendfile = 0; |
|
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diff
changeset
|
165 #endif |
|
a7491af45540
http listen unix domain sockets
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
166 } |
|
a7491af45540
http listen unix domain sockets
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parents:
2951
diff
changeset
|
167 #endif |
|
a7491af45540
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diff
changeset
|
168 |
| 561 | 169 rev = c->read; |
| 170 wev = c->write; | |
|
86
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
75
diff
changeset
|
171 |
|
164
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
121
diff
changeset
|
172 wev->ready = 1; |
|
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
173 |
|
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
174 if (ngx_event_flags & (NGX_USE_AIO_EVENT|NGX_USE_RTSIG_EVENT)) { |
| 493 | 175 /* rtsig, aio, iocp */ |
|
164
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
121
diff
changeset
|
176 rev->ready = 1; |
|
59
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
changeset
|
177 } |
|
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
changeset
|
178 |
|
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
236
diff
changeset
|
179 if (ev->deferred_accept) { |
|
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
236
diff
changeset
|
180 rev->ready = 1; |
| 523 | 181 #if (NGX_HAVE_KQUEUE) |
| 182 rev->available = 1; | |
| 183 #endif | |
|
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
236
diff
changeset
|
184 } |
|
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
236
diff
changeset
|
185 |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
186 rev->log = log; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
187 wev->log = log; |
|
57
a499e0d1f16e
nginx-0.0.1-2003-01-30-10:28:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
changeset
|
188 |
|
208
0b67be7d4489
nginx-0.0.1-2003-12-08-23:48:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
189 /* |
| 561 | 190 * TODO: MT: - ngx_atomic_fetch_add() |
|
266
5238e93961a1
nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
191 * or protection by critical section or light mutex |
|
208
0b67be7d4489
nginx-0.0.1-2003-12-08-23:48:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
192 * |
|
0b67be7d4489
nginx-0.0.1-2003-12-08-23:48:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
193 * TODO: MP: - allocated in a shared memory |
| 561 | 194 * - ngx_atomic_fetch_add() |
|
266
5238e93961a1
nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
195 * or protection by critical section or light mutex |
|
208
0b67be7d4489
nginx-0.0.1-2003-12-08-23:48:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
206
diff
changeset
|
196 */ |
|
212
679f60139863
nginx-0.0.1-2003-12-19-11:15:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
208
diff
changeset
|
197 |
| 561 | 198 c->number = ngx_atomic_fetch_add(ngx_connection_counter, 1); |
|
26
53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
24
diff
changeset
|
199 |
| 495 | 200 #if (NGX_STAT_STUB) |
|
2951
5acd98486a33
ignore ngx_atomic_fetch_add() result
Igor Sysoev <igor@sysoev.ru>
parents:
2723
diff
changeset
|
201 (void) ngx_atomic_fetch_add(ngx_stat_handled, 1); |
| 495 | 202 #endif |
| 203 | |
|
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
204 #if (NGX_THREADS) |
|
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
205 rev->lock = &c->lock; |
|
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
206 wev->lock = &c->lock; |
|
380
5ce6561246a5
nginx-0.0.7-2004-07-07-10:15:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
379
diff
changeset
|
207 rev->own_lock = &c->lock; |
|
5ce6561246a5
nginx-0.0.7-2004-07-07-10:15:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
379
diff
changeset
|
208 wev->own_lock = &c->lock; |
|
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
209 #endif |
|
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
210 |
| 543 | 211 if (ls->addr_ntop) { |
| 2049 | 212 c->addr_text.data = ngx_pnalloc(c->pool, ls->addr_text_max_len); |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
213 if (c->addr_text.data == NULL) { |
| 543 | 214 ngx_close_accepted_connection(c); |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
215 return; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
216 } |
| 577 | 217 |
|
2198
5975975eedc0
ngx_sock_ntop() takes family from sockaddr, remove duplicate field
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
218 c->addr_text.len = ngx_sock_ntop(c->sockaddr, c->addr_text.data, |
|
2512
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a prelimiary IPv6 support, HTTP listen
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2255
diff
changeset
|
219 ls->addr_text_max_len, 0); |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
220 if (c->addr_text.len == 0) { |
| 543 | 221 ngx_close_accepted_connection(c); |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
222 return; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
223 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
224 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
225 |
|
307
ce375c313e96
nginx-0.0.3-2004-04-08-19:58:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
226 #if (NGX_DEBUG) |
|
ce375c313e96
nginx-0.0.3-2004-04-08-19:58:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
227 { |
|
ce375c313e96
nginx-0.0.3-2004-04-08-19:58:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
228 |
|
ce375c313e96
nginx-0.0.3-2004-04-08-19:58:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
229 in_addr_t i; |
| 665 | 230 ngx_event_debug_t *dc; |
| 479 | 231 struct sockaddr_in *sin; |
|
307
ce375c313e96
nginx-0.0.3-2004-04-08-19:58:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
232 |
| 479 | 233 sin = (struct sockaddr_in *) sa; |
| 665 | 234 dc = ecf->debug_connection.elts; |
|
307
ce375c313e96
nginx-0.0.3-2004-04-08-19:58:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
235 for (i = 0; i < ecf->debug_connection.nelts; i++) { |
| 665 | 236 if ((sin->sin_addr.s_addr & dc[i].mask) == dc[i].addr) { |
|
307
ce375c313e96
nginx-0.0.3-2004-04-08-19:58:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
237 log->log_level = NGX_LOG_DEBUG_CONNECTION|NGX_LOG_DEBUG_ALL; |
|
ce375c313e96
nginx-0.0.3-2004-04-08-19:58:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
238 break; |
|
ce375c313e96
nginx-0.0.3-2004-04-08-19:58:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
239 } |
|
ce375c313e96
nginx-0.0.3-2004-04-08-19:58:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
240 } |
|
ce375c313e96
nginx-0.0.3-2004-04-08-19:58:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
241 |
|
ce375c313e96
nginx-0.0.3-2004-04-08-19:58:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
242 } |
|
ce375c313e96
nginx-0.0.3-2004-04-08-19:58:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
243 #endif |
|
ce375c313e96
nginx-0.0.3-2004-04-08-19:58:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
244 |
| 665 | 245 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, log, 0, |
| 246 "*%d accept: %V fd:%d", c->number, &c->addr_text, s); | |
| 247 | |
|
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
248 if (ngx_add_conn && (ngx_event_flags & NGX_USE_EPOLL_EVENT) == 0) { |
|
97
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
96
diff
changeset
|
249 if (ngx_add_conn(c) == NGX_ERROR) { |
| 543 | 250 ngx_close_accepted_connection(c); |
|
87
5f6d848dcbef
nginx-0.0.1-2003-05-13-20:02:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
251 return; |
|
64
34d647deb1da
nginx-0.0.1-2003-03-04-09:33:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
63
diff
changeset
|
252 } |
|
34d647deb1da
nginx-0.0.1-2003-03-04-09:33:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
63
diff
changeset
|
253 } |
|
34d647deb1da
nginx-0.0.1-2003-03-04-09:33:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
63
diff
changeset
|
254 |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
255 log->data = NULL; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
256 log->handler = NULL; |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
257 |
| 543 | 258 ls->handler(c); |
|
57
a499e0d1f16e
nginx-0.0.1-2003-01-30-10:28:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
changeset
|
259 |
| 455 | 260 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
|
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
261 ev->available--; |
|
57
a499e0d1f16e
nginx-0.0.1-2003-01-30-10:28:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
changeset
|
262 } |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
263 |
|
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
264 } while (ev->available); |
|
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
265 } |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
266 |
|
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
267 |
| 493 | 268 ngx_int_t |
| 269 ngx_trylock_accept_mutex(ngx_cycle_t *cycle) | |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
270 { |
| 611 | 271 if (ngx_shmtx_trylock(&ngx_accept_mutex)) { |
| 272 | |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
273 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
274 "accept mutex locked"); |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
275 |
|
719
f30b1a75fd3b
Solaris 10 event ports support
Igor Sysoev <igor@sysoev.ru>
parents:
714
diff
changeset
|
276 if (ngx_accept_mutex_held |
|
f30b1a75fd3b
Solaris 10 event ports support
Igor Sysoev <igor@sysoev.ru>
parents:
714
diff
changeset
|
277 && ngx_accept_events == 0 |
|
f30b1a75fd3b
Solaris 10 event ports support
Igor Sysoev <igor@sysoev.ru>
parents:
714
diff
changeset
|
278 && !(ngx_event_flags & NGX_USE_RTSIG_EVENT)) |
|
f30b1a75fd3b
Solaris 10 event ports support
Igor Sysoev <igor@sysoev.ru>
parents:
714
diff
changeset
|
279 { |
| 573 | 280 return NGX_OK; |
| 281 } | |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
282 |
| 573 | 283 if (ngx_enable_accept_events(cycle) == NGX_ERROR) { |
| 611 | 284 ngx_shmtx_unlock(&ngx_accept_mutex); |
| 573 | 285 return NGX_ERROR; |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
286 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
287 |
|
719
f30b1a75fd3b
Solaris 10 event ports support
Igor Sysoev <igor@sysoev.ru>
parents:
714
diff
changeset
|
288 ngx_accept_events = 0; |
| 573 | 289 ngx_accept_mutex_held = 1; |
| 290 | |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
291 return NGX_OK; |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
292 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
293 |
|
719
f30b1a75fd3b
Solaris 10 event ports support
Igor Sysoev <igor@sysoev.ru>
parents:
714
diff
changeset
|
294 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
|
f30b1a75fd3b
Solaris 10 event ports support
Igor Sysoev <igor@sysoev.ru>
parents:
714
diff
changeset
|
295 "accept mutex lock failed: %ui", ngx_accept_mutex_held); |
|
f30b1a75fd3b
Solaris 10 event ports support
Igor Sysoev <igor@sysoev.ru>
parents:
714
diff
changeset
|
296 |
|
302
1526e7686b20
nginx-0.0.3-2004-04-01-10:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
301
diff
changeset
|
297 if (ngx_accept_mutex_held) { |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
298 if (ngx_disable_accept_events(cycle) == NGX_ERROR) { |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
299 return NGX_ERROR; |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
300 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
301 |
|
302
1526e7686b20
nginx-0.0.3-2004-04-01-10:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
301
diff
changeset
|
302 ngx_accept_mutex_held = 0; |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
303 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
304 |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
305 return NGX_OK; |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
306 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
307 |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
308 |
| 573 | 309 static ngx_int_t |
| 493 | 310 ngx_enable_accept_events(ngx_cycle_t *cycle) |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
311 { |
| 543 | 312 ngx_uint_t i; |
| 313 ngx_listening_t *ls; | |
| 314 ngx_connection_t *c; | |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
315 |
| 543 | 316 ls = cycle->listening.elts; |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
317 for (i = 0; i < cycle->listening.nelts; i++) { |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
318 |
| 543 | 319 c = ls[i].connection; |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
320 |
|
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
323
diff
changeset
|
321 if (ngx_event_flags & NGX_USE_RTSIG_EVENT) { |
| 573 | 322 |
| 543 | 323 if (ngx_add_conn(c) == NGX_ERROR) { |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
324 return NGX_ERROR; |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
325 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
326 |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
327 } else { |
| 543 | 328 if (ngx_add_event(c->read, NGX_READ_EVENT, 0) == NGX_ERROR) { |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
329 return NGX_ERROR; |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
330 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
331 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
332 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
333 |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
334 return NGX_OK; |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
335 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
336 |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
337 |
| 573 | 338 static ngx_int_t |
| 493 | 339 ngx_disable_accept_events(ngx_cycle_t *cycle) |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
340 { |
| 543 | 341 ngx_uint_t i; |
| 342 ngx_listening_t *ls; | |
| 343 ngx_connection_t *c; | |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
344 |
| 543 | 345 ls = cycle->listening.elts; |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
346 for (i = 0; i < cycle->listening.nelts; i++) { |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
347 |
| 543 | 348 c = ls[i].connection; |
| 349 | |
| 350 if (!c->read->active) { | |
| 351 continue; | |
| 352 } | |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
353 |
|
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
323
diff
changeset
|
354 if (ngx_event_flags & NGX_USE_RTSIG_EVENT) { |
| 543 | 355 if (ngx_del_conn(c, NGX_DISABLE_EVENT) == NGX_ERROR) { |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
356 return NGX_ERROR; |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
357 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
358 |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
359 } else { |
| 543 | 360 if (ngx_del_event(c->read, NGX_READ_EVENT, NGX_DISABLE_EVENT) |
| 361 == NGX_ERROR) | |
|
301
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
362 { |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
363 return NGX_ERROR; |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
364 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
365 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
366 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
367 |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
368 return NGX_OK; |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
369 } |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
370 |
|
744965ec6275
nginx-0.0.3-2004-03-31-19:26:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
371 |
| 493 | 372 static void |
| 543 | 373 ngx_close_accepted_connection(ngx_connection_t *c) |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
374 { |
| 543 | 375 ngx_socket_t fd; |
| 376 | |
| 377 ngx_free_connection(c); | |
| 378 | |
| 379 fd = c->fd; | |
| 380 c->fd = (ngx_socket_t) -1; | |
| 381 | |
| 382 if (ngx_close_socket(fd) == -1) { | |
| 383 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno, | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
384 ngx_close_socket_n " failed"); |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
385 } |
| 495 | 386 |
| 543 | 387 if (c->pool) { |
| 388 ngx_destroy_pool(c->pool); | |
| 389 } | |
| 390 | |
| 495 | 391 #if (NGX_STAT_STUB) |
|
2951
5acd98486a33
ignore ngx_atomic_fetch_add() result
Igor Sysoev <igor@sysoev.ru>
parents:
2723
diff
changeset
|
392 (void) ngx_atomic_fetch_add(ngx_stat_active, -1); |
| 495 | 393 #endif |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
394 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
395 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
396 |
| 543 | 397 u_char * |
| 493 | 398 ngx_accept_log_error(ngx_log_t *log, u_char *buf, size_t len) |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
399 { |
| 543 | 400 return ngx_snprintf(buf, len, " while accepting new connection on %V", |
| 401 log->data); | |
|
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
402 } |