Mercurial > hg > nginx
annotate src/os/unix/ngx_setproctitle.h @ 9143:48691bab4474
QUIC: fixed probe-congestion deadlock.
When probe timeout expired while congestion window was exhausted, probe PINGs
could not be sent. As a result, lost packets could not be declared lost and
congestion window could not be freed for new packets. This deadlock
continued until connection idle timeout expiration.
Now PINGs are sent separately from the frame queue without congestion control,
as specified by RFC 9002, Section 7:
An endpoint MUST NOT send a packet if it would cause bytes_in_flight
(see Appendix B.2) to be larger than the congestion window, unless the
packet is sent on a PTO timer expiration (see Section 6.2) or when entering
recovery (see Section 7.3.2).
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Mon, 14 Aug 2023 08:28:30 +0400 |
parents | 16013b71feed |
children |
rev | line source |
---|---|
509 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
509 | 5 */ |
6 | |
7 | |
8 #ifndef _NGX_SETPROCTITLE_H_INCLUDED_ | |
9 #define _NGX_SETPROCTITLE_H_INCLUDED_ | |
10 | |
11 | |
12 #if (NGX_HAVE_SETPROCTITLE) | |
13 | |
14 /* FreeBSD, NetBSD, OpenBSD */ | |
15 | |
5826
16013b71feed
Added ngx_init_setproctitle() return code check.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
16 #define ngx_init_setproctitle(log) NGX_OK |
3285 | 17 #define ngx_setproctitle(title) setproctitle("%s", title) |
509 | 18 |
19 | |
515 | 20 #else /* !NGX_HAVE_SETPROCTITLE */ |
509 | 21 |
515 | 22 #if !defined NGX_SETPROCTITLE_USES_ENV |
509 | 23 |
24 #if (NGX_SOLARIS) | |
25 | |
515 | 26 #define NGX_SETPROCTITLE_USES_ENV 1 |
509 | 27 #define NGX_SETPROCTITLE_PAD ' ' |
28 | |
29 ngx_int_t ngx_init_setproctitle(ngx_log_t *log); | |
30 void ngx_setproctitle(char *title); | |
31 | |
515 | 32 #elif (NGX_LINUX) || (NGX_DARWIN) |
509 | 33 |
515 | 34 #define NGX_SETPROCTITLE_USES_ENV 1 |
35 #define NGX_SETPROCTITLE_PAD '\0' | |
36 | |
37 ngx_int_t ngx_init_setproctitle(ngx_log_t *log); | |
38 void ngx_setproctitle(char *title); | |
39 | |
40 #else | |
509 | 41 |
5826
16013b71feed
Added ngx_init_setproctitle() return code check.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
42 #define ngx_init_setproctitle(log) NGX_OK |
509 | 43 #define ngx_setproctitle(title) |
44 | |
515 | 45 #endif /* OSes */ |
46 | |
47 #endif /* NGX_SETPROCTITLE_USES_ENV */ | |
48 | |
49 #endif /* NGX_HAVE_SETPROCTITLE */ | |
509 | 50 |
51 | |
52 #endif /* _NGX_SETPROCTITLE_H_INCLUDED_ */ |