Re: [Discuss-gnuradio] UDP source block in GRC

[Don Ward]

----- Original Message ----- 
From: "Eric Blossom" <address@hidden>
To: "Marcus D. Leech" <address@hidden>
Cc: "GNURadio Discussion List" <address@hidden>
Sent: Thursday, April 22, 2010 6:24 PM
Subject: Re: [Discuss-gnuradio] UDP source block in GRC


> On Fri, Apr 09, 2010 at 10:23:43PM -0400, Marcus D. Leech wrote:
> > I'm trying to use a UDP source block from a GRC-produced flowgraph.
> >
> > The only thing it does is this:
> >
> > gr_block_executor: source <gr_block udp_source (2)> produced no output.
> > We're marking it DONE.
>
> The udp source/sink needs an overhaul.
>
> This error is triggered to indicate that the block (a source) is
> returning zero, and thus is most likely spinning.

Whatever overhauling is done, it would nice to have the option of treating 
zero-bytes-read from gr_udp_souce as an EOF condition.  A client can then 
decide whether to wait for a server or give up.  (It might also be nice to 
have program access to the timeout value.)

-- Don W.