Re: Fwd: init not called?

[David Lawrence <davidl@jlab.org>]

Hi Mihajlo, Matt, et al.,

    Thanks Matt for reminding me of when this issue was visited before. 
I've now gone and verified that I see the same problem with hd_example 
when using jana 0.4.9. However, with jana 0.5.2, the problem is indeed 
fixed. I think the 2 options are 1.) to implement Matt's solution of 
calling init() from the constructor, or 2.) upgrade to JANA 0.5.2. I 
would encourage the latter.

Regards,
-David

Matthew Shepherd wrote:
>
> Hi guys,
>
> (Removing the main list to avoid spamming people)
>
> David -- does this message help?  I think it is the same problem.  
> Perhaps you've fixed it since then and we need to update on our end?  
> I fixed the problem by calling init() in my processor's constructor.
>
> -Matt
>
> Begin forwarded message:
>
>> From: Matthew Shepherd <mashephe@indiana.edu>
>> Date: April 2, 2009 1:06:09 PM GMT-04:00
>> To: David Lawrence <davidl@jlab.org>
>> Subject: Re: init not called?
>>
>>
>> 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         [[[  [[ [[ [[[
------------------------------------------------------------------------