Mercurial > hg > nginx

annotate src/os/unix/ngx_udp_recv.c @ 4244:df9d3dd8cfc0 stable-1.0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merging r4020: SIGWINCH/NOACCEPT signal is disabled now in non-daemon mode. Non-daemon mode is currently used by supervisord, daemontools and so on or during debugging. The NOACCEPT signal is only used for online upgrade which is not supported when nginx is run under supervisord, etc., so this change should not break existant setups.
author Igor Sysoev <igor@sysoev.ru>
date Tue, 01 Nov 2011 11:26:56 +0000
parents ac33852faaac
children d620f497c50f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
1
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
2 /*
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents: 441
diff changeset
3 * Copyright (C) Igor Sysoev
441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
4 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 375
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5
91
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
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6
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
7 #include <ngx_config.h>
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
8 #include <ngx_core.h>
103
6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 96
diff changeset
9 #include <ngx_event.h>
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
10
91
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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parents:
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11
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
12 #if (NGX_HAVE_KQUEUE)
91
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
13
1680
e438ec9e736a style fix
Igor Sysoev <igor@sysoev.ru>
parents: 627
diff changeset
14 ssize_t
1689
0b592a68aade ngx_udp_recv()
Igor Sysoev <igor@sysoev.ru>
parents: 1681
diff changeset
15 ngx_udp_unix_recv(ngx_connection_t *c, u_char *buf, size_t size)
91
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
16 {
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
17 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
18 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
19 ngx_event_t *rev;
91
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
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20
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
21 rev = c->read;
91
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
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22
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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23 do {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
24 n = recv(c->fd, buf, size, 0);
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
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25
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
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26 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 changeset
27 "recv: fd:%d %d of %d", c->fd, n, size);
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 91
diff changeset
28
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
29 if (n >= 0) {
455
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
30 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
31 rev->available -= n;
163
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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parents: 148
diff changeset
32
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
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33 /*
583
4e296b7d25bf nginx-0.3.13-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 581
diff changeset
34 * rev->available may be negative here because some additional
587
284cc140593b nginx-0.3.15-RELEASE import
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parents: 583
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35 * bytes may be received between kevent() and recv()
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fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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parents: 148
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36 */
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
diff changeset
37
144
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 103
diff changeset
38 if (rev->available <= 0) {
1689
0b592a68aade ngx_udp_recv()
Igor Sysoev <igor@sysoev.ru>
parents: 1681
diff changeset
39 rev->ready = 0;
605
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 587
diff changeset
40 rev->available = 0;
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 587
diff changeset
41 }
163
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
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42 }
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
diff changeset
43
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
44 return n;
91
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
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45 }
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
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46
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
47 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
48
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
49 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
50 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
51 "recv() not ready");
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
52 n = NGX_AGAIN;
91
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
53
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
54 } else {
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
55 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
56 break;
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
57 }
91
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
58
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
59 } 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
60
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
61 rev->ready = 0;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
62
3642
ac33852faaac style fix
Igor Sysoev <igor@sysoev.ru>
parents: 1689
diff changeset
63 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
64 rev->error = 1;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
65 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
66
91
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
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67 return n;
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
68 }
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
69
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
70 #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
71
1680
e438ec9e736a style fix
Igor Sysoev <igor@sysoev.ru>
parents: 627
diff changeset
72 ssize_t
1689
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Igor Sysoev <igor@sysoev.ru>
parents: 1681
diff changeset
73 ngx_udp_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
74 {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
75 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
76 ngx_err_t err;
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
77 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
78
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
79 rev = c->read;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
80
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
81 do {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
82 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
83
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
84 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 changeset
85 "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
86
1689
0b592a68aade ngx_udp_recv()
Igor Sysoev <igor@sysoev.ru>
parents: 1681
diff changeset
87 if (n >= 0) {
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
88 return n;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
89 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
90
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
91 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
92
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
93 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
94 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
95 "recv() not ready");
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
96 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
97
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
98 } else {
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
99 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
100 break;
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
101 }
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
102
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
103 } 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
104
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
105 rev->ready = 0;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
106
3642
ac33852faaac style fix
Igor Sysoev <igor@sysoev.ru>
parents: 1689
diff changeset
107 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
108 rev->error = 1;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
109 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
110
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
111 return n;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
112 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
113
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
114 #endif /* NGX_HAVE_KQUEUE */