Re: [ROOT] THbookFile

From: Rene Brun (Rene.Brun@cern.ch)
Date: Tue Oct 22 2002 - 14:12:30 MEST


Hi Satoru, Hi Stanislav,

You had convincing arguments. In CVS, I have now implemented:

There are now two ways to detect if a file is open:
TFile f("myfile.hbook");
if (f.IsOpen()); //if true f has been open successfully
if (f.IsZombie()); //if true f cannot be used


Rene Brun

On Tue, 22 Oct 2002, Stanislav NESTEROV wrote:

> 
>    Hi Satoru,
>    I must admit there is no way to do this (even through hacks or I've 
> missed smthn?). I think we need to ask Rene to implement some security 
> code for this class. Anyway it is very useful interface  and some 
> attention to it from the developers' side would be great. (I know ROOT 
> team is not going to develope HBOOK interface.)
>    
>    So, Rene, would you be so kind to include some code to be sure that 
> Hbook file is open?
> 
> 			Best regards,
> 					Stanislav.
> On Tue, 22 Oct 2002, Satoru KAMEOKA wrote:
> 
> > Dear all,
> > 
> > THbookFile class, which is available on version 3.03/8, is useful. 
> > But IsOpen() method seems not implemented.
> > Is there any good way to detect file open error in scripts ?
> > 
> >    Regards,
> >    Satoru Kameoka
> > 
> > 
> 



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