MinidInput::connect take self ownership

[YievCkim]

Hi,

I don't understand why this function takes self ownership. This prevents to reuse MidiInput instance. Moreover I have noticed that MidiInput::new raises an InitError when the same name is reused for the connection. Is there a way to reuse a MidiInput instance ?

[Boddlnagg]

I agree that this is probably not the most flexible design, but I think the original reason was that some backend required it, or was otherwise very hard to write without this "limitation".

Looking at the code now (a few years after I implemented it), I think it was the ALSA backend, where MidiInput is essentially a snd_seq_t, and snd_seq_t can only handle one open input "channel" at a time, because snd_seq_t itself is used as a buffer for the incoming events (s.a. the comment at https://docs.rs/alsa/0.5.0/alsa/seq/struct.Input.html).

If anyone is familiar with ALSA and can chime in and offer a better solution, I'd be happy to change this.

[YievCkim]

Yes I have finally found a workaround with message passing. Thank you for the explanation. I am on MacOSX but I have several linux too. I will try to take a look.

[sourcebox]

This seems to be related to #86