I'm probably missing something here, but when you are setting up your signal handler,
you'll certainly have the opportunity to save aside whatever existing handler is in place already?
If there's a pre-existing handler, why not just have your handler call it once your handler is done?
My concern would be whether the stuff you're using that set their own handler would be as accomodating
to your handler, and whether you would ever end up in a loop situation.
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