Very slow association with invalid adresses - Need to use custom timeout during connecting

[qarmin]

Because this can be implemented, I am changing the discussion in the issue to make it more visible

Discussed in #480

^{Originally posted by qarmin March 19, 2024}
I have this code

    debug!("Establishing association with '{}'...", &addr);
    let mut scu_opt = ClientAssociationOptions::new()
        .with_abstract_syntax(abstract_syntax)
        .called_ae_title(aetitle)
        .max_pdu_length(max_pdu_length);

    if !station_name.is_empty() {
        scu_opt = scu_opt.calling_ae_title(station_name);
    }

    let scu = scu_opt
        .establish_with(addr)
        .map_err(|_e| DicomError::CommonError(format!("Failed to establish connection with {addr}")))?;

    debug!("Association established");
    Ok(scu)
}

and after trying to connect to invalid address, after 2 minutes I have info, that dicom failed to establish connection.
Can this be speed up?
Can I use any workaround?

11:29:01.681 [DEBUG] Establishing association with '192.168.10.124:4242'...
11:31:16.409 [ERROR] Failed to get patients from worklist: Failed to establish connection with 192.168.10.124:4242

[naterichman]

Hi @qarmin can you see if #530 fixed your issue? You should be able to now do

    debug!("Establishing association with '{}'...", &addr);
    let mut scu_opt = ClientAssociationOptions::new()
        .with_abstract_syntax(abstract_syntax)
        .called_ae_title(aetitle)
        .read_timeout(20)
        .max_pdu_length(max_pdu_length);

By setting this, when you call establish it should return with an error after 20s.