[Fwd: Re: init not called?]

[David Lawrence <davidl@jlab.org>]

Hi All,

    Here is an exchange that took place between Matt and I earlier today 
for those who are interested. The basic message is that the is some 
flaky behavior in the repository trunk right now so if you are living on 
the bleeding edge, be prepared to bleed.

-David

-------- Original Message --------
Subject: 	Re: init not called?
Date: 	Thu, 2 Apr 2009 13:06:09 -0400
From: 	Matthew Shepherd <mashephe@indiana.edu>
To: 	David Lawrence <davidl@jlab.org>
References: 	<AB4C8AF1-CB8A-472C-BC36-91EBB37AF113@indiana.edu> 
<49D4DBE0.4080207@jlab.org>



David,

No problem -- thanks the note -- my solution works now.  If you feel  
appropriate, you might send an email to the software group?  I spun my  
wheels for a while on this.  The symptom in my case was actually a  
segfault in the event loop.  I searched all over and found it was due  
to a TTree Fill() command that was being called on a null pointer (the  
output tree didn't get setup in init()).

-Matt

On Apr 2, 2009, at 11:38 AM, David Lawrence wrote:

>
> Hi Matt,
>
>   I've run into some problems with this too recently. In fact, I  
> just traced down an issue with it last night. It has to do with  
> changes in the most recent version of JANA (0.5.1). In that release,  
> a somewhat significant change was made to how initializations were  
> done in order to better accommodate GUIs which operate in a slightly  
> different way.
>
>   The fix seems to depend on the exact version of JANA and the Hall- 
> D source code that is being used. For me, the main thing that was  
> needed was to make the JApplication::Init() method virtual so that  
> DApplication::Init() gets called properly. I'm not sure that would  
> resolve the issue in your case.
>
>   All I can say for now is that I'm seeing similar issues and I'm  
> trying to fix them as I come across them. I'm hoping to put out a  
> new JANA version (0.5.2) next week that addresses this and a new  
> tagged release of the Hall-D software the week after that that  
> meshes well with JANA 0.5.2. In the meantime, hopefully you can limp  
> along with what you have.
>
> Sorry for the inconvenience.
>
> Regards,
> -David
>
> Matthew Shepherd wrote:
>>
>> Hi David,
>>
>> I seem to have a processor that has an init routine that is not  
>> getting called.  I can't figure out why this is.  I checked other  
>> sample processors in the repository and the function seems to be  
>> defined correctly:
>>
>>    jerror_t init(void);                        ///< Called once at  
>> program start.
>>
>> I got around it by calling init in the constructor, but this isn't  
>> the best solution -- any ideas?
>>
>> -Matt
>>
>
> -- 
>
> ------------------------------------------------------------------------
> David Lawrence Ph.D.
> Staff Scientist                 Office: (757)269-5567    
> [[[  [   [ [       Jefferson Lab                   Pager:   
> (757)584-5567   [  [ [ [ [ [   http://www.jlab.org/~davidl     davidl@jlab.org 
>          [[[  [[ [[ [[[
> ------------------------------------------------------------------------
>
>


-- 

------------------------------------------------------------------------
 David Lawrence Ph.D.
 Staff Scientist                 Office: (757)269-5567   [[[  [   [ [       
 Jefferson Lab                   Pager:  (757)584-5567   [  [ [ [ [ [   
 http://www.jlab.org/~davidl     davidl@jlab.org         [[[  [[ [[ [[[
------------------------------------------------------------------------