|
#define _GNU_SOURCE
|
|
#include <stdlib.h>
|
|
#include <sys/sysinfo.h>
|
|
|
|
int getloadavg(double *a, int n)
|
|
{
|
|
struct sysinfo si;
|
|
if (n <= 0) return n ? -1 : 0;
|
|
sysinfo(&si);
|
|
if (n > 3) n = 3;
|
|
for (int i=0; i<n; i++)
|
|
a[i] = 1.0/(1<<SI_LOAD_SHIFT) * si.loads[i];
|
|
return n;
|
|
}
|