> 1. Our networking event loop that is based on zeromq/pyzmq
> 2. A single GUI event loop from wx, qt4, etc.
>
> We do this by triggering an iteration of our networking
> event loop on a periodic GUI timer.
So right now you're in a loop in which you let qt4 (or wx) watch the file
descriptors qt4 needs, then zeromq the file descriptors that zeromq needs, and
so on?
Just use the qt4 event loop to watch both the file descriptors zeromq wants to
watch, in addition to whatever events qt4 needs. Qt4 already has the API that
allows you to do this (QSocketNotifier et al.). I am not familiar with zeromq,
but if there is a way to determine which file descriptors it wants to watch
then you're almost done. If not, you could discuss this with the zeromq
developers. Then you won't need to poll, you'll get better response times, and
the code will be scalable too.
Best,
--Michiel.
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