[eq-dev] eqOSG: Eventhandling

[Jonas Walti]

Hi Stefan and all
> Hi Jonas (and all),
>
> Apologies for the late answer. I got trapped in a communications black  
> hole in the Alps until today.
>   
easy, nice to hear that Swisscom & CO doesn't yet conquered whole 
Switzerland....
> On 6. May 2009, at 17:53, Jonas Walti wrote:
>
>   
>> Hi all
>> I added Santosh's idea to my code, which works pretty fine (thanks!).
>> But when I close my application and the eq server shuts down, a "Debug
>> Assertion Failed" Message is thrown. With the help of the debugger I
>> figured out that this happens when the server::_cmdDestroyConfig
>> operation in server.cpp on line 212 tries to destruct the config  
>> object.
>>
>> The error occurs only if at least one event is stored in the  
>> eventQueue
>> vector in my  FrameData object. If nothing is stored, everything shuts
>> down fine.
>>
>> Does someone have any idea why this happens?
>>     
>
> Which version of Equalizer are you using? In the current trunk, the  
> line numbers do no longer match, so it's quite hard for me to pin- 
> point the assertion.
>   
I changed some "tactics" and do not get this error anymore, but there is 
now an other one :-)

I compared my solution with Santosh's and therefore added a 
std::vector<eq:Event> eventQueue member to my Framedata class to pass 
the desired events from config to pipe. Afterwards I updated my 
getInstanceData with stream<<mData<<eventQueue. Until this step, 
everything compiles and links fine. But when I update applyInstanceData 
with stream>>mData>>eventQueue like Santosh did, I get a linker error 
message:

" error LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""public: 
__thiscall eq::Event::Event(void)" (??0Event at eq@@QAE at XZ)" in Funktion 
""public: void __thiscall std::vector<struct eq::Event,class 
std::allocator<struct eq::Event> >::resize(unsigned int)" 
(?resize@?$vector at UEvent@eq@@V?$allocator at UEvent@eq@@@std@@@std@@QAEXI at Z)".
1>C:\crfWorking\Debug\CaveRenderingFramework.exe : fatal error LNK1120: 
1 nicht aufgelöste externe Verweise."

It looks like the linker can't find a default constructor for the 
Event() struct?

We use equalizer-0.6 self compiled release version in debug mode. Maybe 
someone knows why this doesn't link?

thanks

Jonas
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