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#define _GNU_SOURCE
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
int getloadavg(double *a, int n)
{
int i;
double b[3];
FILE *f = fopen("/proc/loadavg", "rbe");
if (!f) return -1;
i = fscanf(f, "%lf %lf %lf", b, b+1, b+2);
fclose(f);
if (n > i) n = i;
if (n < 0) return -1;
memcpy(a, b, n * sizeof *a);
return n;
}
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