#include <db_cxx.h> int DbEnv::rep_get_nsites(u_int32_t *nsitesp);
         The DbEnv::rep_get_nsites() method returns the total number of sites
         in the replication group. For Base API applications, his value is configurable using the
         DbEnv::rep_set_nsites() method. For
         Replication Manager applications, this value is determined
         dynamically.
    
For Base API applications, this method may be called at any time during the life of the application. For Replication Manager applications, this method may be called only after a successful call to the DbEnv::repmgr_start() method.
         The DbEnv::rep_get_nsites() 
            
            
                method either returns a non-zero error value or throws an
                exception that encapsulates a non-zero error value on
                failure, and returns 0 on success.