Mercurial > hg > nginx
annotate src/os/win32/ngx_wsarecv.c @ 4450:4919fb357a5d stable-1.0
Merge of r4406, r4413: copyrights updated.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Sun, 05 Feb 2012 20:02:59 +0000 |
parents | ac33852faaac |
children | 3d2d3e1cf427 |
rev | line source |
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441
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
4450
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4 * Copyright (C) Nginx, Inc. |
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5 */ |
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6 |
103
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_event.h> |
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11 |
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12 |
1680 | 13 ssize_t |
14 ngx_wsarecv(ngx_connection_t *c, u_char *buf, size_t size) | |
103
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15 { |
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16 int rc; |
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17 u_long bytes, flags; |
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18 WSABUF wsabuf[1]; |
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19 ngx_err_t err; |
2775 | 20 ngx_uint_t n; |
184
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21 ngx_event_t *rev; |
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22 |
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23 wsabuf[0].buf = (char *) buf; |
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24 wsabuf[0].len = size; |
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25 flags = 0; |
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26 bytes = 0; |
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27 |
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28 rc = WSARecv(c->fd, wsabuf, 1, &bytes, &flags, NULL, NULL); |
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29 |
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30 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
461 | 31 "WSARecv: fd:%d rc:%d %ul of %z", c->fd, rc, bytes, size); |
184
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32 |
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33 rev = c->read; |
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34 |
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35 if (rc == -1) { |
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36 rev->ready = 0; |
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37 err = ngx_socket_errno; |
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38 |
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39 if (err == WSAEWOULDBLOCK) { |
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40 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
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41 "WSARecv() not ready"); |
184
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42 return NGX_AGAIN; |
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43 } |
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44 |
2775 | 45 n = ngx_connection_error(c, err, "WSARecv() failed"); |
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46 |
3642 | 47 if (n == NGX_ERROR) { |
2775 | 48 rev->error = 1; |
49 } | |
50 | |
51 return n; | |
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52 } |
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53 |
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54 if (bytes < size) { |
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55 rev->ready = 0; |
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56 } |
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57 |
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58 if (bytes == 0) { |
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59 rev->eof = 1; |
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60 } |
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61 |
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62 return bytes; |
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63 } |
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64 |
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65 |
1680 | 66 ssize_t |
67 ngx_overlapped_wsarecv(ngx_connection_t *c, u_char *buf, size_t size) | |
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68 { |
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69 int rc; |
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70 u_long bytes, flags; |
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71 WSABUF wsabuf[1]; |
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72 ngx_err_t err; |
2775 | 73 ngx_uint_t n; |
184
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74 ngx_event_t *rev; |
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75 LPWSAOVERLAPPED ovlp; |
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76 |
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77 rev = c->read; |
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78 |
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79 if (!rev->ready) { |
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80 ngx_log_error(NGX_LOG_ALERT, c->log, 0, "second wsa post"); |
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81 return NGX_AGAIN; |
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82 } |
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83 |
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84 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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85 "rev->complete: %d", rev->complete); |
184
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86 |
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87 if (rev->complete) { |
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88 rev->complete = 0; |
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89 |
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90 if (ngx_event_flags & NGX_USE_IOCP_EVENT) { |
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91 if (rev->ovlp.error) { |
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92 ngx_connection_error(c, rev->ovlp.error, "WSARecv() failed"); |
184
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93 return NGX_ERROR; |
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94 } |
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95 |
461 | 96 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
97 "WSARecv ovlp: fd:%d %ul of %z", | |
98 c->fd, rev->available, size); | |
99 | |
184
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100 return rev->available; |
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101 } |
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102 |
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103 if (WSAGetOverlappedResult(c->fd, (LPWSAOVERLAPPED) &rev->ovlp, |
2776 | 104 &bytes, 0, NULL) |
105 == 0) | |
106 { | |
278
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107 ngx_connection_error(c, ngx_socket_errno, |
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108 "WSARecv() or WSAGetOverlappedResult() failed"); |
184
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109 return NGX_ERROR; |
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110 } |
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111 |
461 | 112 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
113 "WSARecv: fd:%d %ul of %z", c->fd, bytes, size); | |
114 | |
184
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115 return bytes; |
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116 } |
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117 |
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118 ovlp = (LPWSAOVERLAPPED) &rev->ovlp; |
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119 ngx_memzero(ovlp, sizeof(WSAOVERLAPPED)); |
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120 wsabuf[0].buf = (char *) buf; |
184
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121 wsabuf[0].len = size; |
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diff
changeset
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122 flags = 0; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
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123 bytes = 0; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
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124 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
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125 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
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126 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
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127 rev->complete = 0; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
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128 |
278
0ba4821f4460
nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
184
diff
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129 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
461 | 130 "WSARecv ovlp: fd:%d rc:%d %ul of %z", |
131 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
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132 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
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133 if (rc == -1) { |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
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134 err = ngx_socket_errno; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
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135 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
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136 rev->active = 1; |
461 | 137 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
138 "WSARecv() posted"); | |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
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139 return NGX_AGAIN; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
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140 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
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141 |
2775 | 142 n = ngx_connection_error(c, err, "WSARecv() failed"); |
143 | |
3642 | 144 if (n == NGX_ERROR) { |
2775 | 145 rev->error = 1; |
146 } | |
147 | |
148 return n; | |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
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149 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
150 |
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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151 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
|
152 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
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153 /* |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
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154 * 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
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155 * 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
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156 * 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
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157 */ |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
158 |
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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159 rev->active = 1; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
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160 return NGX_AGAIN; |
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 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
163 if (bytes == 0) { |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
164 rev->eof = 1; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
165 rev->ready = 0; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
166 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
167 } else { |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
168 rev->ready = 1; |
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 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
171 rev->active = 0; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
172 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
173 return bytes; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
174 } |