#include <sys/sysinfo.h>
#include <unistd.h>

int get_nprocs_conf() {
  return sysconf(_SC_NPROCESSORS_CONF);
}

int get_nprocs() {
  return sysconf(_SC_NPROCESSORS_ONLN);
}

long get_phys_pages() {
  return sysconf(_SC_PHYS_PAGES);
}

long get_avphys_pages() {
  return sysconf(_SC_AVPHYS_PAGES);
}