Mercurial > hg > nginx

annotate src/os/unix/ngx_recv.c @ 163:fb61ba77beba

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.0.1-2003-10-28-18:45:41 import
author Igor Sysoev <igor@sysoev.ru>
date Tue, 28 Oct 2003 15:45:41 +0000
parents 5afee0074707
children 1bf718ce0dde
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>
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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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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
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8
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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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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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
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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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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>
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17 rev = c->read;
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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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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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23 if (rev->available == 0) {
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fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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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
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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
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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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32 }
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33
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34 return 0;
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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>
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37 return NGX_AGAIN;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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38 }
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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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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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
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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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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
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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>
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51 /*
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
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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
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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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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
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59 }
5afee0074707 nginx-0.0.1-2003-10-17-00:19:16 import
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60
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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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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
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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;
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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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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;
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71 }
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72
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73 if (n == 0) {
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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74 rev->eof = 1;
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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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 }
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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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80 rev->ready = 0;
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fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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81 rev->error = 1;
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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82 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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83
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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84 } while (n == NGX_EINTR);
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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85
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
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86 return n;
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
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87 }
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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88
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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89 #else /* ! NAVE_KQUEUE */
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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90
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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91 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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92 {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
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93 ssize_t n;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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94 ngx_event_t *rev;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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95
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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96 rev = c->read;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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97
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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98 do {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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99 n = recv(c->fd, buf, size, 0);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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100
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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101 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
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102
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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103 if (n >= 0) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
104 if ((size_t) n < size) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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105 rev->ready = 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 }
163
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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parents: 148
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107
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
diff changeset
108 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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109 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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110 }
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
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111
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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112 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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113 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
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114
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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115 rev->ready = 0;
163
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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parents: 148
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116 rev->error = 1;
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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117 n = ngx_unix_recv_error(rev, ngx_socket_errno);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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118
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
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119 } 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
120
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
121 return n;
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
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
124 #endif /* NAVE_KQUEUE */
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
125
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 changeset
127 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
128 {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
129 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
130 return 0;
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
132
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
133 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
134 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
135 return NGX_AGAIN;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
136 }
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 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
139 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
140 return NGX_EINTR;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
141 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
142
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
143 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
144
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
145 return NGX_ERROR;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
146 }