On Mon, Sep 24, 2012 at 12:47 PM, cjpatton <cjpat...@ucdavis.edu> wrote: > Hello Tom, > > I have a follow-up question about how history works in gnuradio. Making no > assumptions about the input/output ratio of a gr_block, is it safe to assume > that noutput_items is the number of new data given to the block? I.e., Does > calling 'consume(noutput_items)' consume all the new data available when the > work function is called? If this is is the case, what does ninput_items > represent? > > Thanks again, > Chris Patton
Chris, By default, yes, an input will have at least noutput_items available to it. This is due to the forecast function that defaults to say that the required number of inputs is the number of outputs plus the history. So unless you overload the forecast function, this is how it works. When you say consume(i, noutput_items), then you are just telling the scheduler that that is how many items read from the input. But there could be more items available; you just (probably) wouldn't process them because you don't have the space on the output. Tom _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
