[ROOT] output file name in case of TBranch:GetBasket error

From: David d'Enterria (enterria@in2p3.fr)
Date: Mon Feb 11 2002 - 20:54:58 MET 

Hello Root team,

I'm merging several hundreds of trees from their corresponding different
files. It turns out that some of these files are corrupted (no disk
space left, overwritten ...). When I chain them, everything seems fine
(no eror) but when the TChain::Merge starts, Root segs. violates with
the following error as it accesses the contents of the corrupted file:

Error in <TBranchObject::GetBasket>: File problem at address:1128532,
basket seekkey=1128532, branch:EVA/dEmcGeaClusterTrack
Error in <TBranchObject::GetBasket>: File problem at address:1132940,
basket seekkey=0, branch:EVA/dEmcGeaTrack
R__unzip: error during decompression
Error in <TBasket::ReadBasketBuffers>: fObjlen = 7710, nout = 0
 file probably overwritten: stopping reporting error messages
Error in <TBranchObject::GetBasket>: File problem at address:1128532,
basket seekkey=1128532, branch:EVA/dEmcGeaClusterTrack
R__unzip: error during decompression
Error in <TBasket::ReadBasketBuffers>: fObjlen = 7710, nout = 0
R__unzip: error during decompression
Error in <TBasket::ReadBasketBuffers>: fObjlen = 7710, nout =
0                                                                               

In order to identify/skip those "bad" files, it would be very convenient
to know to which file (out of the hundred ones in my case) the
address:1128532 belongs to. Can you think of modifying the following
error-message line from:
http://root.cern.ch/root/htmldoc/src/TBranch.cxx.html#TBranch:GetBasket 

Error("GetBasket","File problem at address:%d, basket seekkey=%d,
branch:%s",fBasketSeek[basketnumber],basket->GetSeekKey(),GetName());

so that it also outputs the name of the corresponding file where the
error occurred ?

Thanks very much in advance,

--
 David D'ENTERRIA  -  Marie-Curie PostDoc Fellow  -  TAPS·PHENIX·ALICE
 Groupe Photons SUBATECH                        tel: +33 2 51 85 85 60
 4, A. Kastler BP 20722 · 44307 Nantes          fax: +33 2 51 85 84 24
 http://www-subatech.in2p3.fr/~photons        mailto:enterria@in2p3.fr
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 Phenix Group (Bld. 510C)                         tel: +1 631 344 4233
 Brookhaven National Lab. Upton, NY 11973, USA    fax: +1 631 344 3253
 http://www.phenix.bnl.gov/~enterria           mailto:denterri@bnl.gov
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