Mercurial > hg > nginx-quic
annotate src/os/win32/ngx_wsarecv.c @ 693:610267a772c7 release-0.4.2
nginx-0.4.2-RELEASE
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 14 Sep 2006 15:29:09 +0000 |
parents | a88a3e4e158f |
children | e438ec9e736a |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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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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12 ssize_t ngx_wsarecv(ngx_connection_t *c, u_char *buf, size_t size) |
103
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13 { |
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14 int rc; |
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15 u_long bytes, flags; |
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16 WSABUF wsabuf[1]; |
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17 ngx_err_t err; |
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18 ngx_event_t *rev; |
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19 |
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20 wsabuf[0].buf = (char *) buf; |
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21 wsabuf[0].len = size; |
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22 flags = 0; |
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23 bytes = 0; |
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24 |
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25 rc = WSARecv(c->fd, wsabuf, 1, &bytes, &flags, NULL, NULL); |
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26 |
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27 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
461 | 28 "WSARecv: fd:%d rc:%d %ul of %z", c->fd, rc, bytes, size); |
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29 |
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30 rev = c->read; |
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31 |
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32 if (rc == -1) { |
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33 rev->ready = 0; |
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34 err = ngx_socket_errno; |
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35 |
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36 if (err == WSAEWOULDBLOCK) { |
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37 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
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38 "WSARecv() not ready"); |
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39 return NGX_AGAIN; |
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40 } |
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41 |
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42 rev->error = 1; |
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43 ngx_connection_error(c, err, "WSARecv() failed"); |
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44 |
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45 return NGX_ERROR; |
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46 } |
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47 |
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48 if (bytes < size) { |
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49 rev->ready = 0; |
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50 } |
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51 |
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52 if (bytes == 0) { |
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53 rev->eof = 1; |
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54 } |
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55 |
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56 return bytes; |
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57 } |
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58 |
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59 |
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60 ssize_t ngx_overlapped_wsarecv(ngx_connection_t *c, u_char *buf, size_t size) |
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61 { |
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62 int rc; |
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63 u_long bytes, flags; |
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64 WSABUF wsabuf[1]; |
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65 ngx_err_t err; |
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66 ngx_event_t *rev; |
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67 LPWSAOVERLAPPED ovlp; |
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68 |
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69 rev = c->read; |
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70 |
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71 if (!rev->ready) { |
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72 ngx_log_error(NGX_LOG_ALERT, c->log, 0, "second wsa post"); |
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73 return NGX_AGAIN; |
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74 } |
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75 |
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76 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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77 "rev->complete: %d", rev->complete); |
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78 |
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79 if (rev->complete) { |
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80 rev->complete = 0; |
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81 |
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82 if (ngx_event_flags & NGX_USE_IOCP_EVENT) { |
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83 if (rev->ovlp.error) { |
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84 ngx_connection_error(c, rev->ovlp.error, "WSARecv() failed"); |
184
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85 return NGX_ERROR; |
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86 } |
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87 |
461 | 88 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
89 "WSARecv ovlp: fd:%d %ul of %z", | |
90 c->fd, rev->available, size); | |
91 | |
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92 return rev->available; |
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93 } |
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94 |
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95 if (WSAGetOverlappedResult(c->fd, (LPWSAOVERLAPPED) &rev->ovlp, |
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96 &bytes, 0, NULL) == 0) { |
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97 ngx_connection_error(c, ngx_socket_errno, |
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98 "WSARecv() or WSAGetOverlappedResult() failed"); |
184
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99 return NGX_ERROR; |
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100 } |
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101 |
461 | 102 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
103 "WSARecv: fd:%d %ul of %z", c->fd, bytes, size); | |
104 | |
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105 return bytes; |
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106 } |
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107 |
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108 ovlp = (LPWSAOVERLAPPED) &rev->ovlp; |
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109 ngx_memzero(ovlp, sizeof(WSAOVERLAPPED)); |
292
a472bfb778b3
nginx-0.0.3-2004-03-17-00:26:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
282
diff
changeset
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110 wsabuf[0].buf = (char *) buf; |
184
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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111 wsabuf[0].len = size; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
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112 flags = 0; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
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113 bytes = 0; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
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114 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
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115 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
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116 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
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117 rev->complete = 0; |
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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118 |
278
0ba4821f4460
nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
184
diff
changeset
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119 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
461 | 120 "WSARecv ovlp: fd:%d rc:%d %ul of %z", |
121 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
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122 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
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123 if (rc == -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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124 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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125 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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126 rev->active = 1; |
461 | 127 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
128 "WSARecv() posted"); | |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
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129 return NGX_AGAIN; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
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130 } |
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
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132 rev->error = 1; |
278
0ba4821f4460
nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
184
diff
changeset
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133 ngx_connection_error(c, err, "WSARecv() failed"); |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
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134 return NGX_ERROR; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
135 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
136 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
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137 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
|
138 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
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139 /* |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
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140 * 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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141 * 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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142 * 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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|
143 */ |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
144 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
145 rev->active = 1; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
146 return NGX_AGAIN; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
147 } |
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 if (bytes == 0) { |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
150 rev->eof = 1; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
151 rev->ready = 0; |
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 } else { |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
154 rev->ready = 1; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
155 } |
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 rev->active = 0; |
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
|
159 return bytes; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
160 } |