Re: MakeClass : problem for 2 instances

From: Marc Escalier <escalier_at_lal.in2p3.fr>
Date: Thu, 27 May 2010 22:54:59 +0200

> PS. Alternatively remove the file delete fChain->GetCurrentFile();
> from the desctructor of PAUReco.

Hi Philippe

all right,
it fixes the problems

thank you so much for your speed of light answer

---

On Thu, 27 May 2010, Philippe Canal wrote:

> Hi Marc,
>
> This problem has been resolved in the trunk a few week ago by revision 33354
> of the trunk.
>
> Cheers,
> Philippe.
>
> PS. Alternatively remove the file delete fChain->GetCurrentFile();
> from the desctructor of PAUReco.
>
> On 5/27/10 3:26 PM, Marc Escalier wrote:
>> Hello,
>>
>> i have the following problem :
>>
>> i) open a given ntuple .root
>> ii) create a class using MakeClass(NameOfTheClass)
>> (let's call the class "PAUReco")
>>
>> iii)
>> let's consider two chains (TChain) : chain A and chain B
>>
>> PAUReco a(mychain_A)
>> a.Loop();
>> PAUReco b(mychain_B)
>> b.Loop()
>>
>> =>it works
>>
>> now a variant : use the same TChain for the two instances of the classes :
>>
>> iii)
>> PAUReco a(mychain_A)
>> a.Loop();
>> PAUReco b(mychain_A)
>> b.Loop()
>>
>> it works, but when i quit root, there is a segmentation fault
>>
>> would you have an idea ? sounds like root "remembers" that the previous
>> chain was used and affected to an another instance of the class
>>
>>
>> thanks
>>
>
Received on Thu May 27 2010 - 22:55:08 CEST