Mercurial > hg > nginx
annotate src/os/unix/ngx_recv.c @ 1723:9b047c9e96c1 stable-0.5
r1587, r1588, r1589, r1590, r1592, r1599, r1629, r1636, r1674, r1681,
r1682, r1683 merge:
typo and style fixes
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 12 Dec 2007 20:49:45 +0000 |
parents | 387450de0b4d |
children |
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 |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
103
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9 #include <ngx_event.h> |
96
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10 |
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11 |
469 | 12 #if (NGX_HAVE_KQUEUE) |
91
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13 |
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14 ssize_t |
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15 ngx_unix_recv(ngx_connection_t *c, u_char *buf, size_t size) |
91
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16 { |
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17 ssize_t n; |
253
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18 ngx_err_t err; |
96
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19 ngx_event_t *rev; |
91
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20 |
96
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21 rev = c->read; |
91
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22 |
455 | 23 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
218
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24 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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25 "recv: eof:%d, avail:%d, err:%d", |
375
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26 rev->pending_eof, rev->available, rev->kq_errno); |
91
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27 |
96
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28 if (rev->available == 0) { |
587 | 29 if (rev->pending_eof) { |
148
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30 rev->ready = 0; |
163
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31 rev->eof = 1; |
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32 |
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33 if (rev->kq_errno) { |
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34 rev->error = 1; |
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35 ngx_set_socket_errno(rev->kq_errno); |
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36 |
537 | 37 return ngx_connection_error(c, rev->kq_errno, |
38 "kevent() reported about an closed connection"); | |
96
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39 } |
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40 |
96
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41 return 0; |
587 | 42 |
43 } else { | |
44 return NGX_AGAIN; | |
96
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45 } |
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46 } |
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47 } |
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48 |
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49 do { |
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50 n = recv(c->fd, buf, size, 0); |
91
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51 |
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52 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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53 "recv: fd:%d %d of %d", c->fd, n, size); |
93
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54 |
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55 if (n >= 0) { |
455 | 56 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
96
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57 rev->available -= n; |
163
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58 |
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59 /* |
583 | 60 * rev->available may be negative here because some additional |
587 | 61 * bytes may be received between kevent() and recv() |
163
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62 */ |
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63 |
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64 if (rev->available <= 0) { |
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65 if (!rev->pending_eof) { |
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66 rev->ready = 0; |
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67 } |
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68 |
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69 if (rev->available < 0) { |
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70 rev->available = 0; |
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71 } |
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72 } |
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73 |
605 | 74 if (n == 0) { |
75 | |
76 /* | |
77 * on FreeBSD recv() may return 0 on closed socket | |
78 * even if kqueue reported about available data | |
79 */ | |
80 | |
81 rev->eof = 1; | |
82 rev->available = 0; | |
83 } | |
84 | |
96
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85 return n; |
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86 } |
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87 |
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88 if ((size_t) n < size) { |
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89 rev->ready = 0; |
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90 } |
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91 |
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92 if (n == 0) { |
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93 rev->eof = 1; |
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94 } |
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95 |
96
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96 return n; |
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97 } |
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98 |
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99 err = ngx_socket_errno; |
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100 |
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101 if (err == NGX_EAGAIN || err == NGX_EINTR) { |
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102 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
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103 "recv() not ready"); |
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104 n = NGX_AGAIN; |
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105 |
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106 } else { |
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107 n = ngx_connection_error(c, err, "recv() failed"); |
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108 break; |
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109 } |
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110 |
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111 } while (err == NGX_EINTR); |
188
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112 |
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113 rev->ready = 0; |
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114 |
184
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115 if (n == NGX_ERROR){ |
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116 rev->error = 1; |
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117 } |
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118 |
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119 return n; |
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120 } |
96
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121 |
469 | 122 #else /* ! NGX_HAVE_KQUEUE */ |
96
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123 |
1723
9b047c9e96c1
r1587, r1588, r1589, r1590, r1592, r1599, r1629, r1636, r1674, r1681,
Igor Sysoev <igor@sysoev.ru>
parents:
627
diff
changeset
|
124 ssize_t |
9b047c9e96c1
r1587, r1588, r1589, r1590, r1592, r1599, r1629, r1636, r1674, r1681,
Igor Sysoev <igor@sysoev.ru>
parents:
627
diff
changeset
|
125 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
|
126 { |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
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|
127 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
|
128 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
|
129 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
|
130 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
131 rev = c->read; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
132 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
133 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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134 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
|
135 |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
136 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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|
137 "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
|
138 |
328
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
139 if (n == 0) { |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
140 rev->ready = 0; |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
141 rev->eof = 1; |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
142 return n; |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
143 |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
144 } 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
|
145 |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
146 if ((size_t) n < size |
455 | 147 && !(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
|
148 { |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
149 rev->ready = 0; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
150 } |
163
fb61ba77beba
nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
148
diff
changeset
|
151 |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
152 return n; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
153 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
154 |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
155 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
|
156 |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
157 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
|
158 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
|
159 "recv() not ready"); |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
160 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
|
161 |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
162 } else { |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
163 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
|
164 break; |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
165 } |
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 } 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
|
168 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
184
diff
changeset
|
169 rev->ready = 0; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
184
diff
changeset
|
170 |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
163
diff
changeset
|
171 if (n == NGX_ERROR){ |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
163
diff
changeset
|
172 rev->error = 1; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
163
diff
changeset
|
173 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
163
diff
changeset
|
174 |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
175 return n; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
176 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
177 |
469 | 178 #endif /* NGX_HAVE_KQUEUE */ |