Re: [Discuss-gnuradio] Hier Block - Message and Stream Ports - Port of Of Range

On Fri, Sep 12, 2014 at 9:00 PM, John Malsbury <jmalsbury.personal@gmail.com> wrote:

I have a hier block with a couple of message i/o and complex stream i/o.  After including the hier block in a top_block and running, it threw out an error about input ports being out of range.  It turned out that it had assigned a port index to a message input, so the stream input had been displaced to higher indices that didn't actually exist in the io_sig.

As a work around - I deleted all of the pad sinks/source in the GRC file, added the stream sinks/sources, and then messages, to assure that the hier block generator assigned stream ports to the lower indices.  [ I was a little surprised this worked actually].

I can try to track down the cause, but I thought I'd mention it here if someone knew exactly where to look.

Or maybe I'm just doing something silly?

-John

I can actually see this being an issue. There is some ambiguity about port ordering between the message and data ports. We've looked at them a bit in the past for similar bugs, but I can see a problem with hier_blocks, particularly when built in GRC.

Your workaround also doesn't surprise me :)

Tom