Mercurial > hg > nginx

annotate src/os/unix/ngx_recv.c @ 188:0061d1f0908d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.0.1-2003-11-18-11:04:34 import
author Igor Sysoev <igor@sysoev.ru>
date Tue, 18 Nov 2003 08:04:34 +0000
parents 1bf718ce0dde
children 05592fd7a436
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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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1
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
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2 #include <ngx_config.h>
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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3 #include <ngx_core.h>
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6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
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parents: 96
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4 #include <ngx_event.h>
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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5
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6
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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7 static int ngx_unix_recv_error(ngx_event_t *rev, ngx_err_t err);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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8
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
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9
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
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10 #if (HAVE_KQUEUE)
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
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12 ssize_t ngx_unix_recv(ngx_connection_t *c, char *buf, size_t size)
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
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13 {
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
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14 ssize_t n;
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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15 ngx_event_t *rev;
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
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16
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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17 rev = c->read;
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
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18
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
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19 if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) {
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 91
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20 ngx_log_debug(c->log, "recv: eof:%d, avail:%d, err:%d" _
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fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
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21 rev->kq_eof _ rev->available _ rev->kq_errno);
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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22
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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23 if (rev->available == 0) {
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fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
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24 if (rev->kq_eof) {
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5afee0074707 nginx-0.0.1-2003-10-17-00:19:16 import
Igor Sysoev <igor@sysoev.ru>
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25 rev->ready = 0;
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fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
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26 rev->eof = 1;
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
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27
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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28 if (rev->kq_errno) {
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
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29 rev->error = 1;
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
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30 ngx_set_socket_errno(rev->kq_errno);
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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parents: 148
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31 return ngx_unix_recv_error(rev, rev->kq_errno);
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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32 }
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33
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34 return 0;
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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35
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36 } else {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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37 return NGX_AGAIN;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
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38 }
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
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39 }
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
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40 }
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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41
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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42 do {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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43 n = recv(c->fd, buf, size, 0);
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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44
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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45 ngx_log_debug(c->log, "recv: %d:%d" _ n _ size);
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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parents: 91
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46
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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47 if (n >= 0) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
48 if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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49 rev->available -= n;
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fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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50
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
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51 /*
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
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52 * rev->available can be negative here because some additional
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
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53 * bytes can be received between kevent() and recv()
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
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54 */
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
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55
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ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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parents: 103
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56 if (rev->available <= 0) {
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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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57 if (!rev->kq_eof) {
148
5afee0074707 nginx-0.0.1-2003-10-17-00:19:16 import
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parents: 144
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58 rev->ready = 0;
5afee0074707 nginx-0.0.1-2003-10-17-00:19:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
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59 }
5afee0074707 nginx-0.0.1-2003-10-17-00:19:16 import
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60
144
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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parents: 103
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61 if (rev->available < 0) {
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 103
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62 rev->available = 0;
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 103
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63 }
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64 }
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65
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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66 return n;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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67 }
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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68
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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69 if ((size_t) n < size) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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70 rev->ready = 0;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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71 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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72
163
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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73 if (n == 0) {
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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parents: 148
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74 rev->eof = 1;
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
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75 }
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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76
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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77 return n;
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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78 }
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
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79
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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80 n = ngx_unix_recv_error(rev, ngx_socket_errno);
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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81
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82 } while (n == NGX_EINTR);
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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parents:
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83
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0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
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84 /* NGX_ERROR || NGX_AGAIN */
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
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parents: 184
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85
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
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86 rev->ready = 0;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
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parents: 184
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87
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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parents: 163
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88 if (n == NGX_ERROR){
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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parents: 163
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89 rev->error = 1;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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parents: 163
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90 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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parents: 163
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91
91
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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parents:
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92 return n;
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
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93 }
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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94
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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95 #else /* ! NAVE_KQUEUE */
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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97 ssize_t ngx_unix_recv(ngx_connection_t *c, char *buf, size_t size)
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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98 {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
99 ssize_t n;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
100 ngx_event_t *rev;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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101
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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102 rev = c->read;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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103
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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104 do {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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105 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
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106
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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107 ngx_log_debug(c->log, "recv: %d:%d" _ n _ size);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
108
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
109 if (n >= 0) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
110 if ((size_t) n < size) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
111 rev->ready = 0;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
112 }
163
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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parents: 148
diff changeset
113
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
diff changeset
114 if (n == 0) {
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
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115 rev->eof = 1;
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
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116 }
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
diff changeset
117
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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118 return n;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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119 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
120
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
121 n = ngx_unix_recv_error(rev, ngx_socket_errno);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
122
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
123 } while (n == NGX_EINTR);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
124
188
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
125 /* NGX_ERROR || NGX_AGAIN */
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
126
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
127 rev->ready = 0;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
128
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
129 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
130 rev->error = 1;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
131 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
132
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
133 return n;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
134 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
135
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
136 #endif /* NAVE_KQUEUE */
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
137
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
138
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
139 static int ngx_unix_recv_error(ngx_event_t *rev, ngx_err_t err)
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
140 {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
141 if (err == NGX_ECONNRESET && rev->ignore_econnreset) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
142 return 0;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
143 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
144
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
145 if (err == NGX_EAGAIN) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
146 ngx_log_error(NGX_LOG_INFO, rev->log, err, "recv() returned EAGAIN");
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
147 return NGX_AGAIN;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
148 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
149
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
150 if (err == NGX_EINTR) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
151 ngx_log_error(NGX_LOG_INFO, rev->log, err, "recv() returned EINTR");
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
152 return NGX_EINTR;
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
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
155 ngx_log_error(NGX_LOG_ERR, rev->log, err, "recv() failed");
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
156
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
157 return NGX_ERROR;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
158 }