Re: [Discuss-gnuradio] return value of gr::block::general_work

[Michael Dickens]

In theory, yes, you can call "produce()" for each output stream with a 
different number of items (or, the same), then return 
gr::block::WORK_CALLED_PRODUCE to tell the scheduler that produce was handled 
inside "general_work()". I know of no blocks that actually do this, but I don't 
know everything. That said, the GR runtime internals support my statement & 
hence this is worth trying. If you do try & succeed, please do let the list 
know. Cheers! - MLD

On Sun, Jan 21, 2018, at 1:19 PM, Dave NotTelling wrote:
> I found in the docs that general_work only supports outputting the same 
> number of samples to each output port 
> (https://github.com/gnuradio/gnuradio/blob/master/gnuradio-runtime/include/gnuradio/block.h#L47-L49)
>  but the produce method seems to tell otherwise 
> (https://github.com/gnuradio/gnuradio/blob/master/gnuradio-runtime/include/gnuradio/block.h#L241-L248)
>  and even has its own return flag for general_work.  So, question is: can 
> general_work output different numbers of samples to each output port by use 
> of the produce() function and returning -2 in general_work?