Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_socket.h @ 7870:e169cce912c7 quic
Avoid retransmitting of packets with discarded keys.
Sections 4.10.1 and 4.10.2 of quic transport describe discarding of initial
and handshake keys. Since the keys are discarded, we no longer need
to retransmit packets and corresponding queues should be emptied.
This patch removes previously added workaround that did not require
acknowledgement for initial packets, resulting in avoiding retransmission,
which is wrong because a packet could be lost and we have to retransmit it.
author | Vladimir Homutov <vl@nginx.com> |
---|---|
date | Mon, 18 May 2020 13:54:53 +0300 |
parents | efd71d49bde0 |
children | 23880e4ad3e2 |
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:
195
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:
195
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:
195
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:
195
diff
changeset
|
6 |
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
7 |
2
ffffe1499bce
nginx-0.0.1-2002-08-16-19:27:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
8 #ifndef _NGX_SOCKET_H_INCLUDED_ |
ffffe1499bce
nginx-0.0.1-2002-08-16-19:27:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
9 #define _NGX_SOCKET_H_INCLUDED_ |
ffffe1499bce
nginx-0.0.1-2002-08-16-19:27:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
10 |
ffffe1499bce
nginx-0.0.1-2002-08-16-19:27:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
11 |
ffffe1499bce
nginx-0.0.1-2002-08-16-19:27:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
12 #include <ngx_config.h> |
ffffe1499bce
nginx-0.0.1-2002-08-16-19:27:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
13 |
59
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
58
diff
changeset
|
14 |
11
f323b4f74e4a
nginx-0.0.1-2002-09-12-18:42:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
6
diff
changeset
|
15 #define NGX_WRITE_SHUTDOWN SHUT_WR |
2
ffffe1499bce
nginx-0.0.1-2002-08-16-19:27:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
16 |
ffffe1499bce
nginx-0.0.1-2002-08-16-19:27:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
17 typedef int ngx_socket_t; |
ffffe1499bce
nginx-0.0.1-2002-08-16-19:27:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
18 |
461 | 19 #define ngx_socket socket |
6
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
3
diff
changeset
|
20 #define ngx_socket_n "socket()" |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
3
diff
changeset
|
21 |
59
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
58
diff
changeset
|
22 |
469 | 23 #if (NGX_HAVE_FIONBIO) |
59
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
58
diff
changeset
|
24 |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
58
diff
changeset
|
25 int ngx_nonblocking(ngx_socket_t s); |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
58
diff
changeset
|
26 int ngx_blocking(ngx_socket_t s); |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
58
diff
changeset
|
27 |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
58
diff
changeset
|
28 #define ngx_nonblocking_n "ioctl(FIONBIO)" |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
58
diff
changeset
|
29 #define ngx_blocking_n "ioctl(!FIONBIO)" |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
58
diff
changeset
|
30 |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
58
diff
changeset
|
31 #else |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
58
diff
changeset
|
32 |
645 | 33 #define ngx_nonblocking(s) fcntl(s, F_SETFL, fcntl(s, F_GETFL) | O_NONBLOCK) |
6
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
3
diff
changeset
|
34 #define ngx_nonblocking_n "fcntl(O_NONBLOCK)" |
2
ffffe1499bce
nginx-0.0.1-2002-08-16-19:27:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
35 |
645 | 36 #define ngx_blocking(s) fcntl(s, F_SETFL, fcntl(s, F_GETFL) & ~O_NONBLOCK) |
37 #define ngx_blocking_n "fcntl(!O_NONBLOCK)" | |
38 | |
59
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
58
diff
changeset
|
39 #endif |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
58
diff
changeset
|
40 |
7583
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
41 #if (NGX_HAVE_FIONREAD) |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
42 |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
43 #define ngx_socket_nread(s, n) ioctl(s, FIONREAD, n) |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
44 #define ngx_socket_nread_n "ioctl(FIONREAD)" |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
45 |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
46 #endif |
efd71d49bde0
Events: available bytes calculation via ioctl(FIONREAD).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
47 |
101
2e069b6e6920
nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
48 int ngx_tcp_nopush(ngx_socket_t s); |
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
49 int ngx_tcp_push(ngx_socket_t s); |
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
50 |
455 | 51 #if (NGX_LINUX) |
101
2e069b6e6920
nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
52 |
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
53 #define ngx_tcp_nopush_n "setsockopt(TCP_CORK)" |
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
54 #define ngx_tcp_push_n "setsockopt(!TCP_CORK)" |
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
55 |
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
56 #else |
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
57 |
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
58 #define ngx_tcp_nopush_n "setsockopt(TCP_NOPUSH)" |
101
2e069b6e6920
nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
59 #define ngx_tcp_push_n "setsockopt(!TCP_NOPUSH)" |
2e069b6e6920
nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
60 |
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
61 #endif |
101
2e069b6e6920
nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
62 |
59
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
58
diff
changeset
|
63 |
11
f323b4f74e4a
nginx-0.0.1-2002-09-12-18:42:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
6
diff
changeset
|
64 #define ngx_shutdown_socket shutdown |
f323b4f74e4a
nginx-0.0.1-2002-09-12-18:42:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
6
diff
changeset
|
65 #define ngx_shutdown_socket_n "shutdown()" |
f323b4f74e4a
nginx-0.0.1-2002-09-12-18:42:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
6
diff
changeset
|
66 |
3
34a521b1a148
nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
2
diff
changeset
|
67 #define ngx_close_socket close |
465 | 68 #define ngx_close_socket_n "close() socket" |
3
34a521b1a148
nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
2
diff
changeset
|
69 |
2
ffffe1499bce
nginx-0.0.1-2002-08-16-19:27:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
70 |
ffffe1499bce
nginx-0.0.1-2002-08-16-19:27:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
71 #endif /* _NGX_SOCKET_H_INCLUDED_ */ |