In gr-gcell/src/qa_fft.py there is a method of gcell called 'set_singleton'.
gcell.set_singleton(self.mgr)
All I can glean from the source is it has something to do with boost
weak pointers. What, basically, is it doing? I've played with the
python code to stream data to multiple spe's and it all works as
expected. All I know is that if it's commented out we get:
terminate called after throwing an instance of 'boost::bad_weak_ptr'
what(): tr1::bad_weak_ptr
Aborted
From boost:
weak_ptr <boost/weak_ptr.hpp> Non-owning observers of an
object owned by shared_ptr.
--Chuck
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