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annotate src/os/win32/ngx_wsarecv.c @ 8111:56819a9491fe

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Win32: event flags handling edge cases in ngx_wsarecv(). Fixed event flags handling edge cases in ngx_wsarecv() and ngx_wsarecv_chain(), notably to always reset rev->ready in case of errors (which wasn't the case after ngx_socket_nread() errors), and after EOF (rev->ready was not cleared if due to a misconfiguration a zero-sized buffer was used for reading).
author Maxim Dounin <mdounin@mdounin.ru>
date Thu, 01 Dec 2022 04:22:36 +0300
parents efd71d49bde0
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
1
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
2 /*
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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parents: 441
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3 * Copyright (C) Igor Sysoev
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d620f497c50f Copyright updated.
Maxim Konovalov <maxim@nginx.com>
parents: 3642
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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
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
5 */
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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6
103
6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
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7
6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
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8 #include <ngx_config.h>
6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
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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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parents:
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10 #include <ngx_event.h>
6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
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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
6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
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15 {
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1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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16 int rc;
280
7c7183b3ea8b nginx-0.0.2-2004-03-05-11:34:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 278
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17 u_long bytes, flags;
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
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18 WSABUF wsabuf[1];
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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parents: 144
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19 ngx_err_t err;
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20 ngx_int_t n;
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1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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parents: 144
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21 ngx_event_t *rev;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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22
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a472bfb778b3 nginx-0.0.3-2004-03-17-00:26:01 import
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23 wsabuf[0].buf = (char *) buf;
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1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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parents: 144
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24 wsabuf[0].len = size;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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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);
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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29
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0ba4821f4460 nginx-0.0.2-2004-03-04-10:04:55 import
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30 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0,
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a88a3e4e158f nginx-0.1.5-RELEASE import
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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
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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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
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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39 if (err == WSAEWOULDBLOCK) {
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0ba4821f4460 nginx-0.0.2-2004-03-04-10:04:55 import
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parents: 184
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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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parents: 184
diff changeset
41 "WSARecv() not ready");
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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42 return NGX_AGAIN;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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43 }
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44
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45 n = ngx_connection_error(c, err, "WSARecv() failed");
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0ba4821f4460 nginx-0.0.2-2004-03-04-10:04:55 import
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parents: 184
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46
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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
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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52 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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parents: 144
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53
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54 #if (NGX_HAVE_FIONREAD)
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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55
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56 if (rev->available >= 0 && bytes > 0) {
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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57 rev->available -= bytes;
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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58
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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59 /*
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
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60 * negative rev->available means some additional bytes
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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61 * were received between kernel notification and WSARecv(),
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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62 * and therefore ev->ready can be safely reset even for
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents: 5360
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63 * edge-triggered event methods
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
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64 */
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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65
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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66 if (rev->available < 0) {
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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67 rev->available = 0;
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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68 rev->ready = 0;
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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69 }
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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70
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71 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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72 "WSARecv: avail:%d", rev->available);
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73
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74 } else if (bytes == size) {
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75
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76 if (ngx_socket_nread(c->fd, &rev->available) == -1) {
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents: 5360
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77 n = ngx_connection_error(c, ngx_socket_errno,
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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78 ngx_socket_nread_n " failed");
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79
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80 if (n == NGX_ERROR) {
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81 rev->ready = 0;
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82 rev->error = 1;
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parents: 5360
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83 }
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84
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85 return n;
efd71d49bde0 Events: available bytes calculation via ioctl(FIONREAD).
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parents: 5360
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86 }
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87
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88 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
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Maxim Dounin <mdounin@mdounin.ru>
parents: 5360
diff changeset
89 "WSARecv: avail:%d", rev->available);
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90 }
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91
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92 #endif
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93
184
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94 if (bytes < size) {
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95 rev->ready = 0;
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96 }
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97
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98 if (bytes == 0) {
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parents: 7583
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99 rev->ready = 0;
184
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diff changeset
100 rev->eof = 1;
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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 return bytes;
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104 }
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105
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106
1680
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parents: 461
diff changeset
107 ssize_t
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108 ngx_overlapped_wsarecv(ngx_connection_t *c, u_char *buf, size_t size)
184
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109 {
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110 int rc;
280
7c7183b3ea8b nginx-0.0.2-2004-03-05-11:34:24 import
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111 u_long bytes, flags;
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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parents: 144
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112 WSABUF wsabuf[1];
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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113 ngx_err_t err;
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diff changeset
114 ngx_int_t n;
184
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115 ngx_event_t *rev;
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116 LPWSAOVERLAPPED ovlp;
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117
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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118 rev = c->read;
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119
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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120 if (!rev->ready) {
282
30310107dbc9 nginx-0.0.2-2004-03-09-22:47:07 import
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parents: 280
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121 ngx_log_error(NGX_LOG_ALERT, c->log, 0, "second wsa post");
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
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122 return NGX_AGAIN;
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123 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
124
278
0ba4821f4460 nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
125 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
0ba4821f4460 nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
126 "rev->complete: %d", rev->complete);
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
127
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
128 if (rev->complete) {
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
129 rev->complete = 0;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
130
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
131 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
132 if (rev->ovlp.error) {
278
0ba4821f4460 nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
133 ngx_connection_error(c, rev->ovlp.error, "WSARecv() failed");
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
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
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
137 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
138 "WSARecv ovlp: fd:%d %ul of %z",
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
139 c->fd, rev->available, size);
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
140
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
141 return rev->available;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
142 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
143
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
144 if (WSAGetOverlappedResult(c->fd, (LPWSAOVERLAPPED) &rev->ovlp,
2776
88987e52be42 style fix
Igor Sysoev <igor@sysoev.ru>
parents: 2775
diff changeset
145 &bytes, 0, NULL)
88987e52be42 style fix
Igor Sysoev <igor@sysoev.ru>
parents: 2775
diff changeset
146 == 0)
88987e52be42 style fix
Igor Sysoev <igor@sysoev.ru>
parents: 2775
diff changeset
147 {
278
0ba4821f4460 nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
148 ngx_connection_error(c, ngx_socket_errno,
0ba4821f4460 nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
149 "WSARecv() or WSAGetOverlappedResult() failed");
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
150 return NGX_ERROR;
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
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
153 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
154 "WSARecv: fd:%d %ul of %z", c->fd, bytes, size);
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
155
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
156 return bytes;
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 ovlp = (LPWSAOVERLAPPED) &rev->ovlp;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
160 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
161 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
162 wsabuf[0].len = size;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
163 flags = 0;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
164 bytes = 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 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
167
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
168 rev->complete = 0;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
169
278
0ba4821f4460 nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 184
diff changeset
170 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
171 "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
172 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
173
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
174 if (rc == -1) {
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
175 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
176 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
177 rev->active = 1;
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
178 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
179 "WSARecv() posted");
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
180 return NGX_AGAIN;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
181 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
182
2775
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
183 n = ngx_connection_error(c, err, "WSARecv() failed");
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
184
3642
ac33852faaac style fix
Igor Sysoev <igor@sysoev.ru>
parents: 2776
diff changeset
185 if (n == NGX_ERROR) {
2775
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
186 rev->error = 1;
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
187 }
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
188
01c691e31032 fix the previous commit
Igor Sysoev <igor@sysoev.ru>
parents: 1680
diff changeset
189 return n;
184
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
190 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
191
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
192 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
193
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
194 /*
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
195 * 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
196 * 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
197 * 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
198 */
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
199
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
200 rev->active = 1;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
201 return NGX_AGAIN;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
202 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
203
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
204 if (bytes == 0) {
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
205 rev->eof = 1;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
206 rev->ready = 0;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
207
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
208 } else {
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
209 rev->ready = 1;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
210 }
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
211
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
212 rev->active = 0;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
213
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
214 return bytes;
1bf718ce0dde nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
215 }