struct meminfo {
  int meminfofd;
  int total;
  int used;
  int free;
  int shared;
  int buffers;
  int cached;
  int swaptotal;
  int swapused;
  int swapfree;
  int totmegs;
  int swapmegs;
  int bytes_per_tick;
  int swapbytes_per_tick;
};

struct meminfo *readMeminfo(void);
