address_metrics

typedef struct _ec_address_metrics {
  /* these 5 are internal, do not poke them directly */
  union _address_metrics_address {
    struct in_addr address4;
    struct in6_addr address6;
  } address;
  u_int8_t family;
  ec_binding_slot binding_slot;
  ec_cache_elt *elt;
  ec_atomic_t expires;

  /* XXX these probably need atomic protection XXX */
  struct timeval failure;
  float avg_connecttime;
  float avg_deliverytime;
} address_metrics;