| 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 | } |