Mercurial > hg > nginx

annotate src/os/win32/ngx_wsarecv.c @ 4412:d620f497c50f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Copyright updated.
author Maxim Konovalov <maxim@nginx.com>
date Wed, 18 Jan 2012 15:07:43 +0000
parents ac33852faaac
children 3d2d3e1cf427
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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parents: 292
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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 /*
444
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
4412
d620f497c50f Copyright updated.
Maxim Konovalov <maxim@nginx.com>
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4 * Copyright (C) Nginx, Inc.
441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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5 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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6
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7
6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
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8 #include <ngx_config.h>
6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
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9 #include <ngx_core.h>
6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
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10 #include <ngx_event.h>
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11
6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
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12
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13 ssize_t
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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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7c7183b3ea8b nginx-0.0.2-2004-03-05-11:34:24 import
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17 u_long bytes, flags;
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1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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18 WSABUF wsabuf[1];
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19 ngx_err_t err;
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20 ngx_uint_t n;
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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;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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26 bytes = 0;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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27
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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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,
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31 "WSARecv: fd:%d rc:%d %ul of %z", c->fd, rc, bytes, size);
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32
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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33 rev = c->read;
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34
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35 if (rc == -1) {
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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36 rev->ready = 0;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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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,
0ba4821f4460 nginx-0.0.2-2004-03-04-10:04:55 import
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41 "WSARecv() not ready");
184
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42 return NGX_AGAIN;
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43 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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44
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45 n = ngx_connection_error(c, err, "WSARecv() failed");
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46
3642
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47 if (n == NGX_ERROR) {
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48 rev->error = 1;
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49 }
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50
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51 return n;
184
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52 }
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53
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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54 if (bytes < size) {
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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55 rev->ready = 0;
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56 }
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57
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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58 if (bytes == 0) {
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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59 rev->eof = 1;
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60 }
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61
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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62 return bytes;
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63 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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64
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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65
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66 ssize_t
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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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1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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71 WSABUF wsabuf[1];
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72 ngx_err_t err;
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73 ngx_uint_t n;
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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
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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79 if (!rev->ready) {
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30310107dbc9 nginx-0.0.2-2004-03-09-22:47:07 import
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80 ngx_log_error(NGX_LOG_ALERT, c->log, 0, "second wsa post");
184
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81 return NGX_AGAIN;
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82 }
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83
278
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84 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
0ba4821f4460 nginx-0.0.2-2004-03-04-10:04:55 import
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85 "rev->complete: %d", rev->complete);
184
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86
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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87 if (rev->complete) {
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88 rev->complete = 0;
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89
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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90 if (ngx_event_flags & NGX_USE_IOCP_EVENT) {
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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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
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96 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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97 "WSARecv ovlp: fd:%d %ul of %z",
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98 c->fd, rev->available, size);
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99
184
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100 return rev->available;
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101 }
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102
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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103 if (WSAGetOverlappedResult(c->fd, (LPWSAOVERLAPPED) &rev->ovlp,
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104 &bytes, 0, NULL)
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105 == 0)
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106 {
278
0ba4821f4460 nginx-0.0.2-2004-03-04-10:04:55 import
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107 ngx_connection_error(c, ngx_socket_errno,
0ba4821f4460 nginx-0.0.2-2004-03-04-10:04:55 import
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108 "WSARecv() or WSAGetOverlappedResult() failed");
184
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109 return NGX_ERROR;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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110 }
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111
461
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112 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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113 "WSARecv: fd:%d %ul of %z", c->fd, bytes, size);
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114
184
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115 return bytes;
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116 }
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117
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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118 ovlp = (LPWSAOVERLAPPED) &rev->ovlp;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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119 ngx_memzero(ovlp, sizeof(WSAOVERLAPPED));
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120 wsabuf[0].buf = (char *) buf;
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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parents: 144
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121 wsabuf[0].len = size;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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parents: 144
diff changeset
122 flags = 0;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
123 bytes = 0;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
124
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
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
diff changeset
126
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
127 rev->complete = 0;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
128
278
0ba4821f4460 nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
129 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
130 "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
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
diff changeset
132
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
133 if (rc == -1) {
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
134 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
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 changeset
136 rev->active = 1;
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
137 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
138 "WSARecv() posted");
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
139 return NGX_AGAIN;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
140 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
141
2775
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
142 n = ngx_connection_error(c, err, "WSARecv() failed");
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
143
3642
ac33852faaac style fix
Igor Sysoev <igor@sysoev.ru>
parents: 2776
diff changeset
144 if (n == NGX_ERROR) {
2775
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
145 rev->error = 1;
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
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
148 return n;
184
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
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
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: 144
diff changeset
153 /*
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
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 changeset
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 changeset
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 changeset
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
159 rev->active = 1;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
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 }