On Mon, Aug 19, 2013 at 9:16 AM, Tom Rondeau
<address@hidden> wrote:
> I took a look at the code, and I found this suspicious bit in hier_block2_detail.cc:
>
> void
> hier_block2_detail::disconnect_all()
> {
> d_fg->clear();
> d_blocks.clear();
> d_inputs.clear();
> d_outputs.clear();
> }
>
> I have very little C++ experience, but if I understand correctly, the last two lines will cause the input and output port vectors to have length 0, which would explain the observed behavior. There does not seem to be any code which increases the size of the vectors again.
>
> If this is so, the fix would be to reset each element to the unset value individually rather than removing elements. (I don't know how to write that in idiomatic C++.)
>
> I hope someone who has a working GNU Radio development environment (I've tried and failed, which is an unrelated problem) can try this fix.
This is really good information. Johnathan and I will look it over and
discuss it.