Mercurial > hg > nginx
annotate src/os/unix/ngx_setaffinity.h @ 6949:ff0c8e11edbc
Simplified and improved sendfile() code on Linux.
The ngx_linux_sendfile() function is now used for both normal sendfile()
and sendfile in threads. The ngx_linux_sendfile_thread() function was
modified to use the same interface as ngx_linux_sendfile(), and is simply
called from ngx_linux_sendfile() when threads are enabled.
Special return code NGX_DONE is used to indicate that a thread task was
posted and no further actions are needed.
If number of bytes sent is less that what we were sending, we now always
retry sending. This is needed for sendfile() in threads as the number
of bytes we are sending might have been changed since the thread task
was posted. And this is also needed for Linux 4.3+, as sendfile() might
be interrupted at any time and provides no indication if it was interrupted
or not (ticket #1174).
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 28 Mar 2017 18:15:39 +0300 |
parents | 7296b38f6416 |
children |
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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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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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13 |
6402
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Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
parents:
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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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17 |
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Vladimir Homutov <vl@nginx.com>
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18 #elif (NGX_HAVE_CPUSET_SETAFFINITY) |
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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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21 |
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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>
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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:
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32 typedef uint64_t ngx_cpuset_t; |
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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.
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37 #endif /* _NGX_SETAFFINITY_H_INCLUDED_ */ |