Mercurial > hg > nginx-quic
annotate src/os/win32/ngx_wsarecv_chain.c @ 8551:c35b255d80dc quic
HTTP/3: close connection on keepalive_requests * 2.
After receiving GOAWAY, client is not supposed to create new streams. However,
until client reads this frame, we allow it to create new streams, which are
gracefully rejected. To prevent client from abusing this algorithm, a new
limit is introduced. Upon reaching keepalive_requests * 2, server now closes
the entire QUIC connection claiming excessive load.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Thu, 29 Jul 2021 16:01:37 +0300 |
parents | ecf2a9002b37 |
children | 56819a9491fe |
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:
343
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:
343
diff
changeset
|
2 /* |
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
441
diff
changeset
|
3 * Copyright (C) Igor Sysoev |
4412 | 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:
343
diff
changeset
|
5 */ |
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
343
diff
changeset
|
6 |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
7 |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
8 #include <ngx_config.h> |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
9 #include <ngx_core.h> |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
10 #include <ngx_event.h> |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
11 |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
12 |
8535
ecf2a9002b37
Win32: use only preallocated memory in send/recv chain functions.
Ruslan Ermilov <ru@nginx.com>
parents:
7583
diff
changeset
|
13 #define NGX_WSABUFS 64 |
501 | 14 |
15 | |
16 ssize_t | |
5882
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
17 ngx_wsarecv_chain(ngx_connection_t *c, ngx_chain_t *chain, off_t limit) |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
18 { |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
19 int rc; |
292
a472bfb778b3
nginx-0.0.3-2004-03-17-00:26:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
280
diff
changeset
|
20 u_char *prev; |
280
7c7183b3ea8b
nginx-0.0.2-2004-03-05-11:34:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
278
diff
changeset
|
21 u_long bytes, flags; |
5882
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
22 size_t n, size; |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
23 ngx_err_t err; |
501 | 24 ngx_array_t vec; |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
25 ngx_event_t *rev; |
501 | 26 LPWSABUF wsabuf; |
27 WSABUF wsabufs[NGX_WSABUFS]; | |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
28 |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
29 prev = NULL; |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
30 wsabuf = NULL; |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
31 flags = 0; |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
32 size = 0; |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
33 bytes = 0; |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
34 |
501 | 35 vec.elts = wsabufs; |
36 vec.nelts = 0; | |
37 vec.size = sizeof(WSABUF); | |
577 | 38 vec.nalloc = NGX_WSABUFS; |
501 | 39 vec.pool = c->pool; |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
40 |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
292
diff
changeset
|
41 /* coalesce the neighbouring bufs */ |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
42 |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
43 while (chain) { |
5882
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
44 n = chain->buf->end - chain->buf->last; |
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
45 |
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
46 if (limit) { |
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
47 if (size >= (size_t) limit) { |
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
48 break; |
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
49 } |
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
50 |
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
51 if (size + n > (size_t) limit) { |
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
52 n = (size_t) limit - size; |
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
53 } |
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
54 } |
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
55 |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
292
diff
changeset
|
56 if (prev == chain->buf->last) { |
5882
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
57 wsabuf->len += n; |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
58 |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
59 } else { |
8535
ecf2a9002b37
Win32: use only preallocated memory in send/recv chain functions.
Ruslan Ermilov <ru@nginx.com>
parents:
7583
diff
changeset
|
60 if (vec.nelts == vec.nalloc) { |
ecf2a9002b37
Win32: use only preallocated memory in send/recv chain functions.
Ruslan Ermilov <ru@nginx.com>
parents:
7583
diff
changeset
|
61 break; |
ecf2a9002b37
Win32: use only preallocated memory in send/recv chain functions.
Ruslan Ermilov <ru@nginx.com>
parents:
7583
diff
changeset
|
62 } |
ecf2a9002b37
Win32: use only preallocated memory in send/recv chain functions.
Ruslan Ermilov <ru@nginx.com>
parents:
7583
diff
changeset
|
63 |
501 | 64 wsabuf = ngx_array_push(&vec); |
65 if (wsabuf == NULL) { | |
66 return NGX_ERROR; | |
67 } | |
68 | |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
292
diff
changeset
|
69 wsabuf->buf = (char *) chain->buf->last; |
5882
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
70 wsabuf->len = n; |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
71 } |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
72 |
5882
ec81934727a1
Core: added limit to recv_chain().
Roman Arutyunyan <arut@nginx.com>
parents:
4412
diff
changeset
|
73 size += n; |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
292
diff
changeset
|
74 prev = chain->buf->end; |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
75 chain = chain->next; |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
76 } |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
77 |
278
0ba4821f4460
nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
186
diff
changeset
|
78 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
501 | 79 "WSARecv: %d:%d", vec.nelts, wsabuf->len); |
278
0ba4821f4460
nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
186
diff
changeset
|
80 |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
81 |
501 | 82 rc = WSARecv(c->fd, vec.elts, vec.nelts, &bytes, &flags, NULL, NULL); |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
83 |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
84 rev = c->read; |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
85 |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
86 if (rc == -1) { |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
87 rev->ready = 0; |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
88 err = ngx_socket_errno; |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
89 |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
90 if (err == WSAEWOULDBLOCK) { |
278
0ba4821f4460
nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
186
diff
changeset
|
91 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
0ba4821f4460
nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
186
diff
changeset
|
92 "WSARecv() not ready"); |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
93 return NGX_AGAIN; |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
94 } |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
95 |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
96 rev->error = 1; |
278
0ba4821f4460
nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
186
diff
changeset
|
97 ngx_connection_error(c, err, "WSARecv() failed"); |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
98 return NGX_ERROR; |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
99 } |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
100 |
7583
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
101 #if (NGX_HAVE_FIONREAD) |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
102 |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
103 if (rev->available >= 0 && bytes > 0) { |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
104 rev->available -= bytes; |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
105 |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
106 /* |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
107 * negative rev->available means some additional bytes |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
108 * were received between kernel notification and WSARecv(), |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
109 * and therefore ev->ready can be safely reset even for |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
110 * edge-triggered event methods |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
111 */ |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
112 |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
113 if (rev->available < 0) { |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
114 rev->available = 0; |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
115 rev->ready = 0; |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
116 } |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
117 |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
118 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
119 "WSARecv: avail:%d", rev->available); |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
120 |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
121 } else if (bytes == size) { |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
122 |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
123 if (ngx_socket_nread(c->fd, &rev->available) == -1) { |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
124 rev->error = 1; |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
125 ngx_connection_error(c, ngx_socket_errno, |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
126 ngx_socket_nread_n " failed"); |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
127 return NGX_ERROR; |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
128 } |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
129 |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
130 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
131 "WSARecv: avail:%d", rev->available); |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
132 } |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
133 |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
134 #endif |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5882
diff
changeset
|
135 |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
136 if (bytes < size) { |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
137 rev->ready = 0; |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
138 } |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
139 |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
140 if (bytes == 0) { |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
141 rev->eof = 1; |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
142 } |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
143 |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
144 return bytes; |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
145 } |