Re: TROOT

From: Fons Rademakers (Fons.Rademakers@cern.ch)
Date: Thu Aug 26 1999 - 17:44:42 MEST


Hi Christoph,

   this is fixed in the latest dev version. The system does not exit anymore
in case multiple TROOT's are defined. However, always access TROOT via gROOT
and you will be fine.

Cheers, Fons.



Christoph Borgmeier wrote:
> 
> Hi all,
> 
> I seem to have an environment with a fundamental ROOT problem:
> 
> 1) different users' code, which is not ROOT-aware and does not want to
>    bother with TROOT instantiations
> 
> 2) one or more libraries, which use ROOT. They can be linked
>    independently.
> 
> Up to now, I have only one library, which uses ROOT. It instantiates a
> TROOT object. If another library is linked, which does the same, the
> program is exited with "only one instance of TROOT allowed".
> 
> What can I do, if 1) has to remain valid? If the new-operator of TROOT was
> accessible, one could check TROOT::Initialized() before creating an
> instance. On the other hand, if the second instanciation would not abort
> the program, but simply not initialize itself and not change gROOT,
> everything should be fine.
> 
> What do you think?
> Christoph
> 
> --
>  Christoph Borgmeier    Mail:  DESY F15/HERA-B, Geb. 61/117
>                                Notkestr. 85, 22607 Hamburg
>  Humboldt Univ Berlin   Phone: +49 40 8998 4850
>                         Email: Christoph.Borgmeier@desy.de

-- 
Org:    CERN, European Laboratory for Particle Physics.
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E-Mail: Fons.Rademakers@cern.ch              Phone: +41 22 7679248
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