Mercurial > hg > nginx-quic

annotate src/os/unix/ngx_recv.c @ 224:d427f1c3fe95

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.0.1-2004-01-13-09:39:14 import
author Igor Sysoev <igor@sysoev.ru>
date Tue, 13 Jan 2004 06:39:14 +0000
parents 05592fd7a436
children b6793bc5034b
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
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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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4 #include <ngx_event.h>
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5
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6
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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
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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
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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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15 ngx_event_t *rev;
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16
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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
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19 if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) {
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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20 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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21 "recv: eof:%d, avail:%d, err:%d",
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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22 rev->kq_eof, rev->available, rev->kq_errno);
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23
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24 if (rev->available == 0) {
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fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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25 if (rev->kq_eof) {
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5afee0074707 nginx-0.0.1-2003-10-17-00:19:16 import
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26 rev->ready = 0;
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fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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27 rev->eof = 1;
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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28
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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29 if (rev->kq_errno) {
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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30 rev->error = 1;
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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31 ngx_set_socket_errno(rev->kq_errno);
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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32 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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33 "kevent() reported about closed connection");
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34
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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35 if (rev->kq_errno == NGX_ECONNRESET
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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36 && rev->log_error == NGX_ERROR_IGNORE_ECONNRESET)
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37 {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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38 return 0;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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39 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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40
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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41 return NGX_ERROR;
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42 }
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43
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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44 return 0;
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45
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46 } else {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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47 return NGX_AGAIN;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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48 }
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49 }
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50 }
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51
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52 do {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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53 n = recv(c->fd, buf, size, 0);
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54
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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55 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,"recv: %d:%d", n, size);
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56
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57 if (n >= 0) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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58 if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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59 rev->available -= n;
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60
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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61 /*
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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62 * rev->available can be negative here because some additional
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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63 * bytes can be received between kevent() and recv()
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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64 */
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65
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66 if (rev->available <= 0) {
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67 if (!rev->kq_eof) {
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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
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76 return n;
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77 }
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78
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79 if ((size_t) n < size) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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80 rev->ready = 0;
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81 }
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82
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83 if (n == 0) {
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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84 rev->eof = 1;
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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85 }
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
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86
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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87 return n;
91
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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88 }
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89
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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90 n = ngx_unix_recv_error(rev, ngx_socket_errno);
91
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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91
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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92 } while (n == NGX_EINTR);
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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93
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94 /* NGX_ERROR || NGX_AGAIN */
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
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95
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
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96 rev->ready = 0;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
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97
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1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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98 if (n == NGX_ERROR){
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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99 rev->error = 1;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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100 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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101
91
637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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102 return n;
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103 }
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104
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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105 #else /* ! NAVE_KQUEUE */
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106
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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107 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
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parents: 93
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108 {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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109 ssize_t n;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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110 ngx_event_t *rev;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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111
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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112 rev = c->read;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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113
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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114 do {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 93
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115 n = recv(c->fd, buf, size, 0);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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116
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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117 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,"recv: %d:%d", n, size);
96
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118
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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diff changeset
119 if (n >= 0) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
120 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
121 rev->ready = 0;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
122 }
163
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
diff changeset
123
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
diff changeset
124 if (n == 0) {
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
diff changeset
125 rev->eof = 1;
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
diff changeset
126 }
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 148
diff changeset
127
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
128 return n;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
129 }
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 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
132
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
133 } 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
134
188
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
135 /* 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
136
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
137 rev->ready = 0;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
138
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
139 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
140 rev->error = 1;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
141 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
142
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
143 return n;
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
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
146 #endif /* NAVE_KQUEUE */
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
147
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 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
150 {
218
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
151 ngx_int_t level;
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
152
218
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
153 if (err == NGX_EAGAIN || err == NGX_EINTR) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
154 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, rev->log, err, "recv() not ready");
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
155 return NGX_AGAIN;
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
218
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
158 if (err == NGX_ECONNRESET) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
159
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
160 switch (rev->log_error) {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
161 case NGX_ERROR_IGNORE_ECONNRESET:
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
162 return 0;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
163 case NGX_ERROR_INFO:
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
164 level = NGX_LOG_INFO;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
165 break;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
166 case NGX_ERROR_ERR:
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
167 level = NGX_LOG_ERR;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
168 break;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
169 default:
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
170 level = NGX_LOG_CRIT;
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
171 }
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
172
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
173 } else {
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
174 level = NGX_LOG_CRIT;
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
175 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
176
218
05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 188
diff changeset
177 ngx_log_error(level, rev->log, err, "recv() failed");
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
178
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
179 return NGX_ERROR;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
180 }