src/legacy/getloadavg.c

   1 #define _GNU_SOURCE
   2 #include <stdlib.h>
   3 #include <sys/sysinfo.h>
   4
   5 int getloadavg(double *a, int n)
   6 {
   7         struct sysinfo si;
   8         if (n <= 0) return n ? -1 : 0;
   9         sysinfo(&si);
  10         if (n > 3) n = 3;
  11         for (int i=0; i<n; i++)
  12                 a[i] = 1.0/(1<<SI_LOAD_SHIFT) * si.loads[i];
  13         return n;
  14 }