Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_recv.c @ 5747:57c05ff57980
SSL: logging level of "peer closed connection in SSL handshake".
Previously, the NGX_LOG_INFO level was used unconditionally. This is
correct for client SSL connections, but too low for connections to
upstream servers. To resolve this, ngx_connection_error() now used
to log this error, it will select logging level appropriately.
With this change, if an upstream connection is closed during SSL
handshake, it is now properly logged at "error" level.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Fri, 04 Jul 2014 22:14:36 +0400 |
parents | ee78c7705a8e |
children | f01ab2dbcfdc |
rev | line source |
---|---|
441
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1 |
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2 /* |
444
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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> |
103
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10 #include <ngx_event.h> |
96
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11 |
91
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12 |
469 | 13 #if (NGX_HAVE_KQUEUE) |
91
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14 |
1680 | 15 ssize_t |
16 ngx_unix_recv(ngx_connection_t *c, u_char *buf, size_t size) | |
91
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17 { |
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18 ssize_t n; |
253
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19 ngx_err_t err; |
96
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20 ngx_event_t *rev; |
91
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21 |
96
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22 rev = c->read; |
91
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23 |
455 | 24 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
218
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25 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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26 "recv: eof:%d, avail:%d, err:%d", |
375
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27 rev->pending_eof, rev->available, rev->kq_errno); |
91
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28 |
96
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29 if (rev->available == 0) { |
587 | 30 if (rev->pending_eof) { |
148
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31 rev->ready = 0; |
163
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32 rev->eof = 1; |
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33 |
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34 if (rev->kq_errno) { |
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35 rev->error = 1; |
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36 ngx_set_socket_errno(rev->kq_errno); |
218
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37 |
537 | 38 return ngx_connection_error(c, rev->kq_errno, |
39 "kevent() reported about an closed connection"); | |
96
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40 } |
163
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41 |
96
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42 return 0; |
587 | 43 |
44 } else { | |
1875
c11d96cbad75
reset ready flag if no data is available,
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45 rev->ready = 0; |
587 | 46 return NGX_AGAIN; |
96
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47 } |
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48 } |
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49 } |
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50 |
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51 do { |
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52 n = recv(c->fd, buf, size, 0); |
91
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53 |
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54 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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55 "recv: fd:%d %d of %d", c->fd, n, size); |
93
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56 |
96
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57 if (n >= 0) { |
455 | 58 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
96
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59 rev->available -= n; |
163
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60 |
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61 /* |
583 | 62 * rev->available may be negative here because some additional |
587 | 63 * bytes may be received between kevent() and recv() |
163
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64 */ |
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65 |
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66 if (rev->available <= 0) { |
375
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67 if (!rev->pending_eof) { |
148
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68 rev->ready = 0; |
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69 } |
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70 |
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71 if (rev->available < 0) { |
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72 rev->available = 0; |
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73 } |
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74 } |
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75 |
605 | 76 if (n == 0) { |
77 | |
78 /* | |
79 * on FreeBSD recv() may return 0 on closed socket | |
80 * even if kqueue reported about available data | |
81 */ | |
82 | |
5370
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Fixed handling of the ready flag with kqueue.
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83 rev->ready = 0; |
605 | 84 rev->eof = 1; |
85 rev->available = 0; | |
86 } | |
87 | |
96
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88 return n; |
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89 } |
91
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90 |
5267
13c006f0c40e
Events: honor NGX_USE_GREEDY_EVENT when kqueue support is enabled.
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91 if ((size_t) n < size |
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92 && !(ngx_event_flags & NGX_USE_GREEDY_EVENT)) |
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93 { |
96
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94 rev->ready = 0; |
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95 } |
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96 |
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97 if (n == 0) { |
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98 rev->eof = 1; |
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99 } |
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100 |
96
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101 return n; |
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102 } |
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103 |
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104 err = ngx_socket_errno; |
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105 |
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106 if (err == NGX_EAGAIN || err == NGX_EINTR) { |
257
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107 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
253
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108 "recv() not ready"); |
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109 n = NGX_AGAIN; |
91
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110 |
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111 } else { |
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112 n = ngx_connection_error(c, err, "recv() failed"); |
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113 break; |
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114 } |
91
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115 |
253
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116 } while (err == NGX_EINTR); |
188
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117 |
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118 rev->ready = 0; |
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119 |
3642 | 120 if (n == NGX_ERROR) { |
184
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121 rev->error = 1; |
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122 } |
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123 |
91
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124 return n; |
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125 } |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
126 |
469 | 127 #else /* ! NGX_HAVE_KQUEUE */ |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
128 |
1680 | 129 ssize_t |
130 ngx_unix_recv(ngx_connection_t *c, u_char *buf, size_t size) | |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
131 { |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
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132 ssize_t n; |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
133 ngx_err_t err; |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
134 ngx_event_t *rev; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
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135 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
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136 rev = c->read; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
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137 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
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138 do { |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
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139 n = recv(c->fd, buf, size, 0); |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
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140 |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
141 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
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142 "recv: fd:%d %d of %d", c->fd, n, size); |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
143 |
328
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
144 if (n == 0) { |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
145 rev->ready = 0; |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
146 rev->eof = 1; |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
147 return n; |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
148 |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
149 } else if (n > 0) { |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
150 |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
151 if ((size_t) n < size |
455 | 152 && !(ngx_event_flags & NGX_USE_GREEDY_EVENT)) |
328
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
153 { |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
154 rev->ready = 0; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
155 } |
163
fb61ba77beba
nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
148
diff
changeset
|
156 |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
157 return n; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
158 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
159 |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
160 err = ngx_socket_errno; |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
161 |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
162 if (err == NGX_EAGAIN || err == NGX_EINTR) { |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
256
diff
changeset
|
163 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
164 "recv() not ready"); |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
165 n = NGX_AGAIN; |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
166 |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
167 } else { |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
168 n = ngx_connection_error(c, err, "recv() failed"); |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
169 break; |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
170 } |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
171 |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
172 } while (err == NGX_EINTR); |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
184
diff
changeset
|
173 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
184
diff
changeset
|
174 rev->ready = 0; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
184
diff
changeset
|
175 |
3642 | 176 if (n == NGX_ERROR) { |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
163
diff
changeset
|
177 rev->error = 1; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
163
diff
changeset
|
178 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
163
diff
changeset
|
179 |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
180 return n; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
181 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
182 |
469 | 183 #endif /* NGX_HAVE_KQUEUE */ |