Hi, Valeriy,
thank you for reply.
I wrote your solution as a function in rootalias.C with a little
modification to avoid SegV when no file is opened.
void lf()
{
TIter next(gROOT->GetListOfGlobals());
TGlobal *global;
while ((global=(TGlobal*)next())) {
TString type = global->GetTypeName();
if (type=="TFile") {
TFile *file = (TFile*)gInterpreter->Calc(global->GetName());
if (file && file->IsOpen())
printf("%s: %s\n", global->GetName(),file->GetName());
}
}
}
But, unfortunately, this does not always work properly.
*******************************************
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* http://root.cern.ch *
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FreeType Engine v2.1.3 used to render TrueType fonts.
Compiled for linux with thread support.
CINT/ROOT C/C++ Interpreter version 5.15.86, Apr 29 2003
Type ? for help. Commands must be C++ statements.
Enclose multiple statements between { }.
root [0] TFile f("foo.root")
root [1] lf()
gFile: foo.root
f: foo.root
root [2] f.Close()
root [3] lf()
root [4] lf()
root [5] lf()
root [6] TFile f("foo.root")
root [7] lf()
gFile: foo.root
f: foo.root
root [8] TFile f2("bar.root")
root [9] lf()
gFile: bar.root
f: foo.root
root [10]
"f2" is not listed now.
Is this an unreasonable demand?
Best regards,
Satoru Kameoka
From: "Valeriy Onuchin" <Valeri.Onoutchine@cern.ch>
Subject: Re: [ROOT] How to list files
Date: Tue, 29 Jul 2003 15:52:26 +0200
Message-ID: <066001c355d8$a50ebfd0$c1848a89@cern.ch>
> Hi Satoru KAMEOKA,
>
> TIter next(gROOT->GetListOfGlobals());
> TGlobal *global;
> TFile *file;
> while ((global=(TGlobal*)next())) {
> TString type;
> type = global->GetTypeName();
> if (type=="TFile") {
> file = (TFile*)gInterpreter->Calc(global->GetName());
> printf("%s: %s\n", global->GetName(),file->GetName());
> }
> }
>
> HTH. Regards. Valeriy
>
> > Hi, Valeriy,
> > Thank you for reply.
> > The way you taught surely shows file name and its contents, but not
> > associated object "instance name".
> >
> > What I hope is, when some files are opened,
> > root[] TFile f1("foo.root")
> > root[] TFile f2("bar.root")
> > root[] TFile f3("hoge.root")
> >
> > some command can show the list as below.
> > root[] some_command
> > f1 "foo.root"
> > f2 "bar.root"
> > f3 "hoge.root"
> >
> > Yes, I can understand that we can easily retrieve TFile object pointer
> > from file name even if I've fogotten the instance names(f1, f2, f3).
> > But I feel such command would be useful, because I sometimes attempt
> > to use already connected TFile object by mistake and cause
> > segmentation violation, like
> > root[] TFile f("A_file.root")
> > root[] TFile f("Another_file.root")
> >
> > Anyway, thanks a lot.
> >
> > Best regards,
> > S.Kameoka
> >
> > From: "Valeriy Onuchin" <Valeri.Onoutchine@cern.ch>
> > Subject: Re: [ROOT] How to list files
> > Date: Mon, 28 Jul 2003 17:07:52 +0200
> > Message-ID: <028001c3551a$04c250a0$c1848a89@cern.ch>
> >
> > > Hi Satoru,
> > >
> > > TIter next(gROOT->GetListOfFiles());
> > > TObject *obj;
> > > while ((obj=next())) obj->ls();
> > >
> > > HTH. Regards. Valeriy
> > >
> > > > Dear ROOT developers and users,
> > > >
> > > > is there any way to list currently opened files?
> > > > I found gROOT->GetListOfFiles()->Print() prints file names,
> > > > but I want to know also associated TFile object instance names
> > > > as "ldir //" command of PAW shows file name and LUN.
> > > >
> > > >
> > > > Best regards,
> > > > Satoru Kameoka
> > > >
> > > >
> > >
> >
>
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