Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_setaffinity.h @ 8333:8cc5b0365ee5
Improved maximum errno detection.
Previously, systems without sys_nerr (or _sys_nerr) were handled with an
assumption that errors start at 0 and continuous. This is, however, not
something POSIX requires, and not true on some platforms.
Notably, on Linux, where sys_nerr is no longer available for newly linked
binaries starting with glibc 2.32, there are gaps in error list, which
used to stop us from properly detecting maximum errno. Further, on
GNU/Hurd errors start at 0x40000001.
With this change, maximum errno detection is moved to the runtime code,
now able to ignore gaps, and also detects the first error if needed.
This fixes observed "Unknown error" messages as seen on Linux with
glibc 2.32 and on GNU/Hurd.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 01 Mar 2021 20:00:43 +0300 |
parents | 7296b38f6416 |
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4549
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worker_cpu_affinity: cleaned up Linux implementation, added FreeBSD support.
Ruslan Ermilov <ru@nginx.com>
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1 |
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2 /* |
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3 * Copyright (C) Nginx, Inc. |
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4 */ |
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5 |
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Ruslan Ermilov <ru@nginx.com>
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6 #ifndef _NGX_SETAFFINITY_H_INCLUDED_ |
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7 #define _NGX_SETAFFINITY_H_INCLUDED_ |
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8 |
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9 |
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10 #if (NGX_HAVE_SCHED_SETAFFINITY || NGX_HAVE_CPUSET_SETAFFINITY) |
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11 |
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12 #define NGX_HAVE_CPU_AFFINITY 1 |
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6402
7296b38f6416
Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
parents:
4549
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14 #if (NGX_HAVE_SCHED_SETAFFINITY) |
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Vladimir Homutov <vl@nginx.com>
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15 |
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Vladimir Homutov <vl@nginx.com>
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16 typedef cpu_set_t ngx_cpuset_t; |
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Vladimir Homutov <vl@nginx.com>
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17 |
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Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
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18 #elif (NGX_HAVE_CPUSET_SETAFFINITY) |
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Vladimir Homutov <vl@nginx.com>
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19 |
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Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
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20 #include <sys/cpuset.h> |
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Vladimir Homutov <vl@nginx.com>
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21 |
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Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
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22 typedef cpuset_t ngx_cpuset_t; |
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23 |
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Vladimir Homutov <vl@nginx.com>
parents:
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24 #endif |
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Vladimir Homutov <vl@nginx.com>
parents:
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25 |
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Vladimir Homutov <vl@nginx.com>
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26 void ngx_setaffinity(ngx_cpuset_t *cpu_affinity, ngx_log_t *log); |
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27 |
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28 #else |
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29 |
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30 #define ngx_setaffinity(cpu_affinity, log) |
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31 |
6402
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Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
parents:
4549
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32 typedef uint64_t ngx_cpuset_t; |
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Core: added support for more than 64 CPUs in worker_cpu_affinity.
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33 |
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worker_cpu_affinity: cleaned up Linux implementation, added FreeBSD support.
Ruslan Ermilov <ru@nginx.com>
parents:
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34 #endif |
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35 |
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worker_cpu_affinity: cleaned up Linux implementation, added FreeBSD support.
Ruslan Ermilov <ru@nginx.com>
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36 |
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worker_cpu_affinity: cleaned up Linux implementation, added FreeBSD support.
Ruslan Ermilov <ru@nginx.com>
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37 #endif /* _NGX_SETAFFINITY_H_INCLUDED_ */ |