Ring buffer for TTrees in online data analysis

From: Jens Paetzold (paetzold@pit.physik.uni-tuebingen.de)
Date: Sun Aug 16 1998 - 20:53:01 MEST 

Hello,

I would like to change for an online analyzer from paw to root.
We have the HBOOK ring buffer for row wise ntuples used up to now.
I have already managed to use TMapFile for the shared memory section with
histogramms. Now I would like to use also TTrees.
My question: Is there a simple way to implement a feature like this ring 
buffer for TTrees on a TMapFile? Maybe I have not discovered it yet?
Or is there some idea for the implementation of this?  

Thanks, Jens

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