62 lines
944 B
C
62 lines
944 B
C
#include <errno.h>
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#include <unistd.h>
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#include <sched.h>
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#include <stdio.h>
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#include <err.h>
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#include <sysexits.h>
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#include "prutil.h"
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/*
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* $FreeBSD$
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*/
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void quit(const char *text)
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{
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err(errno, text);
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}
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char *sched_text(int scheduler)
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{
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switch(scheduler)
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{
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case SCHED_FIFO:
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return "SCHED_FIFO";
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case SCHED_RR:
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return "SCHED_RR";
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case SCHED_OTHER:
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return "SCHED_OTHER";
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default:
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return "Illegal scheduler value";
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}
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}
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int sched_is(int line, struct sched_param *p, int shouldbe)
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{
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int scheduler;
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struct sched_param param;
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/* What scheduler are we running now?
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*/
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errno = 0;
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scheduler = sched_getscheduler(0);
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if (sched_getparam(0, ¶m))
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quit("sched_getparam");
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if (p)
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*p = param;
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if (shouldbe != -1 && scheduler != shouldbe)
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{
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fprintf(stderr,
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"At line %d the scheduler should be %s yet it is %s.\n",
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line, sched_text(shouldbe), sched_text(scheduler));
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exit(-1);
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}
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return scheduler;
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}
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