ldc_mem_info
rv = ldc_mem_info(dringp->mhdl, minfo);
if ((status = ldc_mem_info(mhdl, &minfo)) != 0) {
rv = ldc_mem_info(ldcp->tx_data_handle, &minfo);
rv = ldc_mem_info(dp->data_handle, &minfo);
int ldc_mem_info(ldc_mem_handle_t mhandle, ldc_mem_info_t *minfo);