Hi, Valeriy.
Now it works fine.
Thank you very much!
Best regards,
Satoru Kameoka
From: "Valeriy Onuchin" <Valeri.Onoutchine@cern.ch>
Subject: Re: [ROOT] How to list files
Date: Thu, 31 Jul 2003 15:50:20 +0200
Message-ID: <01d201c3576a$aeefd910$c1848a89@cern.ch>
> Hi Satoru,
>
> void lf()
> {
> TIter next(gROOT->GetListOfGlobals(1));
> 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());
> }
> }
> }
> HTH. Regards. Valeriy
> (I appologize if you receive this message twice.
> I had e-mail problems recently)
>
>
> > 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.
> >
> > *******************************************
> > * *
> > * W E L C O M E to R O O T *
> > * *
> > * Version 3.05/05 15 May 2003 *
> > * *
> > * You are welcome to visit our Web site *
> > * http://root.cern.ch *
> > * *
> > *******************************************
> >
> > 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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