Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_recv.c @ 184:1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 14 Nov 2003 07:20:34 +0000 |
parents | fb61ba77beba |
children | 0061d1f0908d |
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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10 #if (HAVE_KQUEUE) |
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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_debug(c->log, "recv: eof:%d, avail:%d, err:%d" _ |
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21 rev->kq_eof _ rev->available _ rev->kq_errno); |
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23 if (rev->available == 0) { |
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24 if (rev->kq_eof) { |
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25 rev->ready = 0; |
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26 rev->eof = 1; |
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27 |
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28 if (rev->kq_errno) { |
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29 rev->error = 1; |
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30 ngx_set_socket_errno(rev->kq_errno); |
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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 { |
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37 return NGX_AGAIN; |
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38 } |
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39 } |
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40 } |
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41 |
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42 do { |
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43 rev->ready = 1; |
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44 |
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45 n = recv(c->fd, buf, size, 0); |
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46 |
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47 ngx_log_debug(c->log, "recv: %d:%d" _ n _ size); |
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48 |
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49 if (n >= 0) { |
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50 if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) { |
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51 rev->available -= n; |
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52 |
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53 /* |
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54 * rev->available can be negative here because some additional |
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55 * bytes can be received between kevent() and recv() |
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56 */ |
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57 |
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58 if (rev->available <= 0) { |
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59 if (!rev->kq_eof) { |
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60 rev->ready = 0; |
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61 } |
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62 |
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63 if (rev->available < 0) { |
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64 rev->available = 0; |
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65 } |
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66 } |
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68 return n; |
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69 } |
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71 if ((size_t) n < size) { |
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72 rev->ready = 0; |
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73 } |
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74 |
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75 if (n == 0) { |
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76 rev->eof = 1; |
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77 } |
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78 |
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79 return n; |
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80 } |
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81 |
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82 rev->ready = 0; |
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83 n = ngx_unix_recv_error(rev, ngx_socket_errno); |
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84 |
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85 } while (n == NGX_EINTR); |
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86 |
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87 if (n == NGX_ERROR){ |
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88 rev->error = 1; |
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89 } |
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90 |
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91 return n; |
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92 } |
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93 |
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94 #else /* ! NAVE_KQUEUE */ |
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95 |
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96 ssize_t ngx_unix_recv(ngx_connection_t *c, char *buf, size_t size) |
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97 { |
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98 ssize_t n; |
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99 ngx_event_t *rev; |
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100 |
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101 rev = c->read; |
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102 |
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103 do { |
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104 rev->ready = 1; |
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105 |
96
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nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
106 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
|
107 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
108 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
|
109 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
110 if (n >= 0) { |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
111 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
|
112 rev->ready = 0; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
113 } |
163
fb61ba77beba
nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
148
diff
changeset
|
114 |
fb61ba77beba
nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
148
diff
changeset
|
115 if (n == 0) { |
fb61ba77beba
nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
148
diff
changeset
|
116 rev->eof = 1; |
fb61ba77beba
nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
148
diff
changeset
|
117 } |
fb61ba77beba
nginx-0.0.1-2003-10-28-18:45:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
148
diff
changeset
|
118 |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
119 return n; |
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 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
122 rev->ready = 0; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
123 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
|
124 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
125 } 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
|
126 |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
163
diff
changeset
|
127 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
|
128 rev->error = 1; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
163
diff
changeset
|
129 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
163
diff
changeset
|
130 |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
131 return n; |
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 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
134 #endif /* NAVE_KQUEUE */ |
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 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
137 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
|
138 { |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
139 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
|
140 return 0; |
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 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
|
144 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
|
145 return NGX_AGAIN; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
146 } |
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 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
|
149 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
|
150 return NGX_EINTR; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
151 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
152 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
153 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
|
154 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
155 return NGX_ERROR; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
156 } |