Hello Timm,
Timm Drevensek wrote:
> Hy,
>
> i’d tryed to use some OpenSG 1.8 Image inside a Boost Thread and I
> always get a crash :(
>
> Example, inside some boost Thread:
>
> osg::ImagePtr blubber; (created, filled etc.)
>
> Int blah = blubber->getWidth(); << crash
>
> Stepped around a bit and found the source of the crash:
> OSGFieldContainerPtr::operator->::(getElemP(Thread::getAspect()))
> pUint = (UInt32 *) TlsGetValue(_aspectKey);
>
> return *pUint;
>
> Problem is, that *pUint is always 0 ans dereferencing 0 does not work :(
> Is there a workaround to use Boost Threads & OpenSG?
OpenSG threads are associated to an aspect (think of it as a lazy copy
of the scene graph). For external threads you have to establish this
association manually by telling OpenSG about your external thread:
OSG::ExternalThread *tr;
tr = OSG::ExternalThread::get(NULL);
tr->initialize (0); // 0 == OpenSG Aspect you want to use
Hope it helps,
Carsten
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