| From: | Robert Berry <berrydigital(at)gmail(dot)com> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | calculating an aspect of shared buffer state from a background worker |
| Date: | 2014-03-10 05:09:15 |
| Message-ID: | CAM=RetE0BUD_oySSOY45hovw1wTZqAm3xWct=Pw=ejJN0WV6-w@mail.gmail.com |
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| Lists: | pgsql-hackers |
Dear Hackers --
I'm looking at doing a calculation to determine the number of free buffers
available. A n example ratio that is based on some data structures in
freelist.c as follows:
(StrategyControl->lastFreeBuffer - StrategyControl->firstFreeBuffer) /
(double) NBuffers
Is there a way to get access to the StrategyControl pointer in the context
of a background worker?
Thanks,
Robert
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