Function cdds_util::dds_take_instance

pub unsafe extern "C" fn dds_take_instance(
    reader_or_condition: dds_entity_t, 
    buf: *mut *mut c_void, 
    si: *mut dds_sample_info_t, 
    bufsz: size_t, 
    maxs: u32, 
    handle: dds_instance_handle_t
) -> dds_return_t