Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_recv.c @ 220:4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 08 Jan 2004 08:47:17 +0000 |
parents | 05592fd7a436 |
children | b6793bc5034b |
rev | line source |
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1 |
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2 #include <ngx_config.h> |
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3 #include <ngx_core.h> |
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4 #include <ngx_event.h> |
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7 static int ngx_unix_recv_error(ngx_event_t *rev, ngx_err_t err); |
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8 |
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10 #if (HAVE_KQUEUE) |
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11 |
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12 ssize_t ngx_unix_recv(ngx_connection_t *c, char *buf, size_t size) |
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13 { |
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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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18 |
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19 if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) { |
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20 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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21 "recv: eof:%d, avail:%d, err:%d", |
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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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25 if (rev->kq_eof) { |
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26 rev->ready = 0; |
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27 rev->eof = 1; |
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28 |
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29 if (rev->kq_errno) { |
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30 rev->error = 1; |
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31 ngx_set_socket_errno(rev->kq_errno); |
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32 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno, |
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33 "kevent() reported about closed connection"); |
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34 |
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35 if (rev->kq_errno == NGX_ECONNRESET |
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36 && rev->log_error == NGX_ERROR_IGNORE_ECONNRESET) |
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37 { |
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38 return 0; |
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39 } |
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40 |
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41 return NGX_ERROR; |
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42 } |
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43 |
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44 return 0; |
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45 |
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46 } else { |
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47 return NGX_AGAIN; |
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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 { |
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53 n = recv(c->fd, buf, size, 0); |
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54 |
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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) { |
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58 if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) { |
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59 rev->available -= n; |
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60 |
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61 /* |
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62 * rev->available can be negative here because some additional |
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63 * bytes can be received between kevent() and recv() |
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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) { |
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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) { |
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84 rev->eof = 1; |
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85 } |
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86 |
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87 return n; |
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88 } |
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89 |
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90 n = ngx_unix_recv_error(rev, ngx_socket_errno); |
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91 |
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92 } while (n == NGX_EINTR); |
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93 |
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94 /* NGX_ERROR || NGX_AGAIN */ |
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95 |
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96 rev->ready = 0; |
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97 |
184
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98 if (n == NGX_ERROR){ |
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99 rev->error = 1; |
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100 } |
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101 |
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102 return n; |
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103 } |
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104 |
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105 #else /* ! NAVE_KQUEUE */ |
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parents:
93
diff
changeset
|
106 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
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107 ssize_t ngx_unix_recv(ngx_connection_t *c, char *buf, size_t size) |
a23d010f356d
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parents:
93
diff
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108 { |
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nginx-0.0.1-2003-05-27-16:18:54 import
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parents:
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diff
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|
109 ssize_t n; |
a23d010f356d
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110 ngx_event_t *rev; |
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nginx-0.0.1-2003-05-27-16:18:54 import
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parents:
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diff
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111 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
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parents:
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diff
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112 rev = c->read; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
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diff
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113 |
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nginx-0.0.1-2003-05-27-16:18:54 import
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parents:
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diff
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114 do { |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
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parents:
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diff
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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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parents:
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diff
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116 |
218
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diff
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|
117 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,"recv: %d:%d", n, size); |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
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118 |
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nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
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|
119 if (n >= 0) { |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
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parents:
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diff
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120 if ((size_t) n < size) { |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
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diff
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121 rev->ready = 0; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
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parents:
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diff
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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
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|
125 rev->eof = 1; |
fb61ba77beba
nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
148
diff
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|
126 } |
fb61ba77beba
nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
148
diff
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|
127 |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
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128 return n; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
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parents:
93
diff
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129 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
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130 |
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nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
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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
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132 |
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nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
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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
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|
136 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
184
diff
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|
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
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|
140 rev->error = 1; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
163
diff
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|
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
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|
143 return n; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
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|
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
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|
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
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|
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
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|
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 } |