Mercurial > hg > nginx

annotate src/os/win32/ngx_wsarecv.c @ 2776:88987e52be42

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
style fix
author Igor Sysoev <igor@sysoev.ru>
date Wed, 29 Apr 2009 13:08:10 +0000
parents 01c691e31032
children ac33852faaac
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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1
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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2 /*
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42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
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6
6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
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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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11
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12 ssize_t
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13 ngx_wsarecv(ngx_connection_t *c, u_char *buf, size_t size)
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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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1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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17 WSABUF wsabuf[1];
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18 ngx_err_t err;
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19 ngx_uint_t n;
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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;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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25 bytes = 0;
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26
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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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,
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30 "WSARecv: fd:%d rc:%d %ul of %z", c->fd, rc, bytes, size);
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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");
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41 return NGX_AGAIN;
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42 }
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43
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44 n = ngx_connection_error(c, err, "WSARecv() failed");
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45
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46 if (n == NGX_ERROR){
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47 rev->error = 1;
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48 }
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49
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50 return n;
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51 }
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52
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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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
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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61 return bytes;
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62 }
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63
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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64
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65 ssize_t
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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;
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72 ngx_uint_t n;
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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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30310107dbc9 nginx-0.0.2-2004-03-09-22:47:07 import
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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);
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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");
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92 return NGX_ERROR;
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93 }
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94
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95 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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96 "WSARecv ovlp: fd:%d %ul of %z",
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97 c->fd, rev->available, size);
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98
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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,
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103 &bytes, 0, NULL)
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104 == 0)
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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
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111 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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112 "WSARecv: fd:%d %ul of %z", c->fd, bytes, size);
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113
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114 return bytes;
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115 }
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116
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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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;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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121 flags = 0;
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diff changeset
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
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
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
129 "WSARecv ovlp: fd:%d rc:%d %ul of %z",
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
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
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
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
136 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err,
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
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
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
141 n = ngx_connection_error(c, err, "WSARecv() failed");
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
142
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
143 if (n == NGX_ERROR){
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
144 rev->error = 1;
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
145 }
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
146
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
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 }