calculating an aspect of shared buffer state from a background worker

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От Robert Berry
Тема calculating an aspect of shared buffer state from a background worker
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Msg-id CAM=RetE0BUD_oySSOY45hovw1wTZqAm3xWct=Pw=ejJN0WV6-w@mail.gmail.com
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Ответы Re: calculating an aspect of shared buffer state from a background worker  (Michael Paquier <michael.paquier@gmail.com>)
Re: calculating an aspect of shared buffer state from a background worker  (Tom Lane <tgl@sss.pgh.pa.us>)
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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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