[Gnumed-devel] gmPG/gmBackendListener

[Karsten Hilbert]

Worked a bit on that, lots of clean up/commenting/correctness.
Added Unlisten() cabapility and multiple callbacks per signal.

Works with one quirk:
An explicit "LISTEN <signal_name>;" does not raise a backend
notification in the sending frontend or any frontend, say
psql. I'd appreciate if someone could look into that.

Fit for processing table-triggered notifications IMHO.

Karsten
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