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annotate src/os/unix/ngx_setaffinity.c @ 7660:d33e17499088

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Version bump.
author Maxim Dounin <mdounin@mdounin.ru>
date Tue, 26 May 2020 22:03:00 +0300
parents 7296b38f6416
children
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f31162fefe01 worker_cpu_affinity: cleaned up Linux implementation, added FreeBSD support.
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f31162fefe01 worker_cpu_affinity: cleaned up Linux implementation, added FreeBSD support.
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2 /*
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3 * Copyright (C) Nginx, Inc.
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4 */
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f31162fefe01 worker_cpu_affinity: cleaned up Linux implementation, added FreeBSD support.
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f31162fefe01 worker_cpu_affinity: cleaned up Linux implementation, added FreeBSD support.
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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f31162fefe01 worker_cpu_affinity: cleaned up Linux implementation, added FreeBSD support.
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f31162fefe01 worker_cpu_affinity: cleaned up Linux implementation, added FreeBSD support.
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11 #if (NGX_HAVE_CPUSET_SETAFFINITY)
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f31162fefe01 worker_cpu_affinity: cleaned up Linux implementation, added FreeBSD support.
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13 void
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14 ngx_setaffinity(ngx_cpuset_t *cpu_affinity, ngx_log_t *log)
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15 {
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16 ngx_uint_t i;
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18 for (i = 0; i < CPU_SETSIZE; i++) {
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19 if (CPU_ISSET(i, cpu_affinity)) {
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20 ngx_log_error(NGX_LOG_NOTICE, log, 0,
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21 "cpuset_setaffinity(): using cpu #%ui", i);
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22 }
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23 }
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25 if (cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1,
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26 sizeof(cpuset_t), cpu_affinity) == -1)
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27 {
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28 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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29 "cpuset_setaffinity() failed");
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30 }
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31 }
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33 #elif (NGX_HAVE_SCHED_SETAFFINITY)
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35 void
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36 ngx_setaffinity(ngx_cpuset_t *cpu_affinity, ngx_log_t *log)
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37 {
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38 ngx_uint_t i;
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39
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40 for (i = 0; i < CPU_SETSIZE; i++) {
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41 if (CPU_ISSET(i, cpu_affinity)) {
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42 ngx_log_error(NGX_LOG_NOTICE, log, 0,
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43 "sched_setaffinity(): using cpu #%ui", i);
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44 }
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45 }
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47 if (sched_setaffinity(0, sizeof(cpu_set_t), cpu_affinity) == -1) {
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48 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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49 "sched_setaffinity() failed");
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50 }
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51 }
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53 #endif