#include <db.h> int DB->get_h_ffactor(DB *db, u_int32_t *h_ffactorp);
         The DB->get_h_ffactor() method returns the hash table density as
         set by the DB->set_h_ffactor() 
         method. The hash table density is the number of items that
         Berkeley DB tries to place in a hash bucket before splitting the hash bucket.
    
         The DB->get_h_ffactor() method may be called at any time during the
         life of the application.
    
         The DB->get_h_ffactor() 
            
                  method returns a non-zero error value on failure and 0 on success.