forked from enlightenment/enlightenment
47 lines
897 B
C
47 lines
897 B
C
#include <stdio.h>
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#include <stdlib.h>
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#if defined(__FreeBSD__) || defined(__DragonFly__)
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# include <sys/sysctl.h>
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#endif
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#if defined(__OpenBSD__)
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# include <sys/param.h>
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# include <sys/resource.h>
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# include <sys/sysctl.h>
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#endif
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#if defined(__OpenBSD__)
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int
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_cpuclock_sysctl_frequency(int new_perf)
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{
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int mib[] = {CTL_HW, HW_SETPERF};
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size_t len = sizeof(new_perf);
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if (sysctl(mib, 2, NULL, 0, &new_perf, len) == -1)
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return 1;
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return 0;
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}
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#elif defined(__FreeBSD__) || defined(__DragonFly__)
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int
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_cpuclock_sysctl_frequency(int new_perf)
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{
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if (sysctlbyname("dev.cpu.0.freq", NULL, NULL, &new_perf, sizeof(new_perf)) == -1)
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return 1;
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return 0;
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}
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#endif
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#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__OpenBSD__)
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int main(int argc, char **argv)
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{
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if (argc != 2)
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exit(1 << 0);
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return _cpuclock_sysctl_frequency(atoi(argv[1]));
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}
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#endif
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