getRegionInfo (ip,op) arg_row = do
  send_getRegionInfo op arg_row
  recv_getRegionInfo ip
getRegionInfo (ip,op) arg_row = do
  send_getRegionInfo op arg_row
  recv_getRegionInfo ip
getRegionInfo (ip,op) arg_row = do
  send_getRegionInfo op arg_row
  recv_getRegionInfo ip