linuxaudio.org

On 07/03/2011 03:01 PM, Paul Davis wrote:

quoted text
> On Sun, Jul 3, 2011 at 8:51 AM, Robin Gareus  wrote:

>

>> Every program (on un*x) can be "quit w/o save" without requiring changes

>> to the program: just send it a `kill -9` :-))

>

>     if (request.type == QuitWithoutSave) {

> 	    kill (getpid(), SIGKILL);

>     }

>

> oops, you didn't reply to the session manager, which wants to know how

> to restart you.

>

> ok, so we leave it to the SM to kill you ... but using SIGKILL for

> this is about as bad as LADISH using SIGUSR1 for its own purposes.

> which is to say - it works, but its Not Unix :)

I should have known that you already considered this option.
>> Alas, jackd may or may not bark (xrun) if a program is killed without

quoted text
>> properly closing its jack connection; but that's acceptable in that case

>> (closing the session anyway).

>

> I think that the SM should tell JACK to stop calling process(), somehow.

Well, sometimes one does not to see the wood for the trees..
Is "quit w/o save" really needed?  IMHO a smarter way would be to

"auto-save" the session every e.g. 5 mins and add keep those as

revisions in a repository.
JACK does not require additional code, all functionality would be done

by the session-management tool. A "quit w/o save" would just "quit with

save" and then roll-back to the last saved session state or snapshot (if

any).
2c,

robin

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