Just tried this on current git version. Same behaviour and can also be reproduced by redirecting stdin from /dev/null.

CC @acli @redtide @KKQ-KKQ Any help with this? Makes it impossible to run as a background job (launching with " &", etc)

The REPL loop seems to be here if anyone knows how to fix it to properly detect EOF and exit:

In the meantime, my workaround is to send it an empty string and newline once per minute like this:
( ( while true; do echo $'\n'; sleep 60; done ) | /home/pi/sfizz-ui/build/library/bin/sfizz_jack ...) &

@acli In my personal opinion, the client should not quit by Ctrl-D or EOF in order to run as a background job.
Could you use a "quit" command instead? Or the client freezes?
Oh I didn't try this actually because I am not a linux user. It enters the infinite loop.

@KKQ-KKQ I have a patch too (actually three; I tried a few different ways). It’s still open after one and a half months; I’m supposing they’re too busy.

@GeoffreyPlitt Fixing this will not (and should not) allow it to run as a demon. When it detects EOF the CLI thread ends and the program will (should) exit.

I think what you need is a flag to disable the CLI. I should be able to make you an unofficial patch but it’s been more than a month since I touched this. (My computer is too slow to do SFZ; I’ve sort of given up.)