Messaging Blocks


In my current flow-graph I need to break data out ofgnuradio then feed
it back once processed. I’m trying to use messaging blocks to do this
but with no luck, actually my code is seg faulting.

Would using message blocks, causing different flow rates, cause
instability and segmentation faults?

If I have a complex NumPy array say of 1000 elements, what is the best
way to cast it back into a gnuradio message queue?