OCC and Boost Threading

Markus's picture
Markus
Thu, 01/13/2011 - 16:24
Forums: 
Other usage issues

Hey,

I want to speed up out application by putting some of out OCC-calls into (boost) threads. Is there anything I have to remember? First test ended up with null pointer whenever I hit a OCC-function.

Thanks
Markus

Roman Lygin's picture
Roman Lygin
Thu, 01/13/2011 - 16:49

Hi Markus,

As long as you don't use OCC API and objects across the threads there is nothing OCC-specific you should worry about. Except, perhaps, if you rely on OCC-specific signal-to-exception conversion activated by OSD::SetSignals().

If you are going to use OCC objects across the threads, then there is *a lot* you need to take care about. A few posts from 2009-2010 should give you a clue where to look.

http://opencascade.blogspot.com/2009/06/developing-parallel-applications...
...
http://opencascade.blogspot.com/2010/05/open-cascade-and-multi-threading...

(My biased opinion - consider TBB, not Boost ;-))

Hope this helps.
Roman