[Om-synth] DSSI UI starting -> show/hide

[Florian Schmidt]

Hi,

playing around with DSSI plugins with their own UI, i see that om
doesn't seem to simply use the /show message instead of starting a UI
process even if it has started the UI before already. This way it starts
quite a few UI processes (which depending on whether they exit or just
hide on window manager close signal, just sit there either hidden
or defunct.)

Afaict it should only start the UI, when the process is not already
running (mind you, one per node). When the UI process is already running
it should only send a /show method. And when the node is destroyed it
should get a /exiting message.

I suppose it is a good idea though to restart the UI process if it has
for some reason exited during the lifetime of a node. It seems om
doesn't wait() on these child processes either, this is why they linger
around defunct.

Haven't looked at the code yet. Just my observations.

om is cvs from today or yesterdaty..

Regards,
Florian Schmidt

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