[linux-audio-dev] jack newbie question

[Paul Davis]

>- is there an api function, that tells jack not to kick the application

absolutely not. if you miss RT deadlines for your process() callback
(or more precisely, if JACK believes you did) it has no choice but to
evict you from the graph. if you are left in the graph, the chances
are that you will just do it again. the only except is if the user
specified on the command line that they did not want this behaviour
(e.g. for live work where an xrun is better than a client being
kicked). but its definitely not up to the client.

>or a callback that tells the application that it has been kicked out?

register a shutdown callback, and you'll find out about it.

>- is it possible to query the time out so that i can adapt the callback
>that it finished before this time out?

you know how many frames you have to process and you know the sample
rate. but you have no idea how many other clients are running, so you
don't know how much time *you* actually have. you just have to adhere
to the basic rule:

   number of cycles = (A * number of frames) + C

where A and C are constant.

--p