LISTEN filtering

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Quick idea to toss out there: allowing an option to LISTEN to
only 'hear' from superusers (or self). I've got an app that uses a lot
of listen/notify to talk to other subprocesses. However, it
would be nice if non-superusers could not affect the behavior
of this application: right now, anyone can issue a NOTIFY. (Yes,
I can look information up about the calling notifier's PID,
but that's not easy). Rather than a full 'rights' system (which
would be complex overkill), what if we had an option to LISTEN
that said "I only want to hear notices coming from superusers"?
Or perhaps an option that says "I only want to hear notices
coming from me (same role)"? This would not affect notifications
at all, but would simply act as a quick filter on incoming
notices for a specific listener.

- --
Greg Sabino Mullane greg(at)turnstep(dot)com
PGP Key: 0x14964AC8 201106211156
http://biglumber.com/x/web?pk=2529DF6AB8F79407E94445B4BC9B906714964AC8

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