Mercurial > hg > nginx
annotate src/os/win32/ngx_wsarecv.c @ 2788:a16ec9e1b4d1
ngx_http_image_filter_module
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 01 May 2009 18:42:09 +0000 |
parents | 88987e52be42 |
children | ac33852faaac |
rev | line source |
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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5 |
103
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
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10 |
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11 |
1680 | 12 ssize_t |
13 ngx_wsarecv(ngx_connection_t *c, u_char *buf, size_t size) | |
103
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14 { |
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15 int rc; |
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16 u_long bytes, flags; |
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17 WSABUF wsabuf[1]; |
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18 ngx_err_t err; |
2775 | 19 ngx_uint_t n; |
184
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20 ngx_event_t *rev; |
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21 |
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22 wsabuf[0].buf = (char *) buf; |
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23 wsabuf[0].len = size; |
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24 flags = 0; |
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25 bytes = 0; |
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26 |
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27 rc = WSARecv(c->fd, wsabuf, 1, &bytes, &flags, NULL, NULL); |
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28 |
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29 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
461 | 30 "WSARecv: fd:%d rc:%d %ul of %z", c->fd, rc, bytes, size); |
184
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31 |
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32 rev = c->read; |
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33 |
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34 if (rc == -1) { |
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35 rev->ready = 0; |
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36 err = ngx_socket_errno; |
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37 |
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38 if (err == WSAEWOULDBLOCK) { |
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39 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
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40 "WSARecv() not ready"); |
184
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41 return NGX_AGAIN; |
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42 } |
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43 |
2775 | 44 n = ngx_connection_error(c, err, "WSARecv() failed"); |
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45 |
2775 | 46 if (n == NGX_ERROR){ |
47 rev->error = 1; | |
48 } | |
49 | |
50 return n; | |
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51 } |
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52 |
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53 if (bytes < size) { |
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54 rev->ready = 0; |
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55 } |
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56 |
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57 if (bytes == 0) { |
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58 rev->eof = 1; |
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59 } |
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60 |
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61 return bytes; |
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62 } |
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63 |
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64 |
1680 | 65 ssize_t |
66 ngx_overlapped_wsarecv(ngx_connection_t *c, u_char *buf, size_t size) | |
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67 { |
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68 int rc; |
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69 u_long bytes, flags; |
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70 WSABUF wsabuf[1]; |
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71 ngx_err_t err; |
2775 | 72 ngx_uint_t n; |
184
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73 ngx_event_t *rev; |
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74 LPWSAOVERLAPPED ovlp; |
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75 |
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76 rev = c->read; |
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77 |
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78 if (!rev->ready) { |
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79 ngx_log_error(NGX_LOG_ALERT, c->log, 0, "second wsa post"); |
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80 return NGX_AGAIN; |
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81 } |
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82 |
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83 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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84 "rev->complete: %d", rev->complete); |
184
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85 |
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86 if (rev->complete) { |
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87 rev->complete = 0; |
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88 |
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89 if (ngx_event_flags & NGX_USE_IOCP_EVENT) { |
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90 if (rev->ovlp.error) { |
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91 ngx_connection_error(c, rev->ovlp.error, "WSARecv() failed"); |
184
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92 return NGX_ERROR; |
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93 } |
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94 |
461 | 95 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
96 "WSARecv ovlp: fd:%d %ul of %z", | |
97 c->fd, rev->available, size); | |
98 | |
184
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99 return rev->available; |
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100 } |
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101 |
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102 if (WSAGetOverlappedResult(c->fd, (LPWSAOVERLAPPED) &rev->ovlp, |
2776 | 103 &bytes, 0, NULL) |
104 == 0) | |
105 { | |
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106 ngx_connection_error(c, ngx_socket_errno, |
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107 "WSARecv() or WSAGetOverlappedResult() failed"); |
184
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108 return NGX_ERROR; |
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109 } |
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110 |
461 | 111 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
112 "WSARecv: fd:%d %ul of %z", c->fd, bytes, size); | |
113 | |
184
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114 return bytes; |
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115 } |
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116 |
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117 ovlp = (LPWSAOVERLAPPED) &rev->ovlp; |
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118 ngx_memzero(ovlp, sizeof(WSAOVERLAPPED)); |
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119 wsabuf[0].buf = (char *) buf; |
184
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120 wsabuf[0].len = size; |
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121 flags = 0; |
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122 bytes = 0; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
123 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
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124 rc = WSARecv(c->fd, wsabuf, 1, &bytes, &flags, ovlp, NULL); |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
125 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
126 rev->complete = 0; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
127 |
278
0ba4821f4460
nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
184
diff
changeset
|
128 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
461 | 129 "WSARecv ovlp: fd:%d rc:%d %ul of %z", |
130 c->fd, rc, bytes, size); | |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
131 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
132 if (rc == -1) { |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
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133 err = ngx_socket_errno; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
134 if (err == WSA_IO_PENDING) { |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
135 rev->active = 1; |
461 | 136 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
137 "WSARecv() posted"); | |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
138 return NGX_AGAIN; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
139 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
140 |
2775 | 141 n = ngx_connection_error(c, err, "WSARecv() failed"); |
142 | |
143 if (n == NGX_ERROR){ | |
144 rev->error = 1; | |
145 } | |
146 | |
147 return n; | |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
148 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
149 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
150 if (ngx_event_flags & NGX_USE_IOCP_EVENT) { |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
151 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
152 /* |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
153 * if a socket was bound with I/O completion port |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
154 * then GetQueuedCompletionStatus() would anyway return its status |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
155 * despite that WSARecv() was already complete |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
156 */ |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
157 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
158 rev->active = 1; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
159 return NGX_AGAIN; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
160 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
161 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
162 if (bytes == 0) { |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
163 rev->eof = 1; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
164 rev->ready = 0; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
165 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
166 } else { |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
167 rev->ready = 1; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
168 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
169 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
170 rev->active = 0; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
171 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
172 return bytes; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
173 } |