Re: [Discuss-gnuradio] loopback dropping final bits

[Dan Halperin]

(Eric, sorry I keep failing to reply all)

Eric Blossom wrote:
> On Thu, Mar 29, 2007 at 08:01:38AM -0700, Eric Blossom wrote:
>   
>> On Thu, Mar 29, 2007 at 08:04:22AM -0400, Greg Troxel wrote:
>>     
>>> I wonder if there is data somewhere in the flowgraph that's less than
>>> the amount needed for the next block to run.   Perhaps there should
>>> be some sort of drain operation, or query for this (that adds over
>>> components), so one can find out what's going on.

This is the final state of the flow graph:

<gr_block file_source (0)> source
  noutput_items = 32767
  general_work: noutput_items = 32767 result = -1
  were_done

<gr_block bytes_to_syms (1)> regular 1:8
  max_items_avail = 0
  noutput_items = 8184
  BLKD_IN
  were_done

<gr_block interp_fir_filter_fff (2)> regular 1:2
  max_items_avail = 4
  noutput_items = 8190
  BLKD_IN
  were_done

<gr_block frequency_modulator_fc (3)> regular 1:1
  max_items_avail = 0
  noutput_items = 4094
  BLKD_IN
  were_done

<gr_block quadrature_demod_cf (4)> regular 1:1
  max_items_avail = 1
  noutput_items = 8182
  BLKD_IN
  were_done

<gr_block clock_recovery_mm_ff (5)> regular 2:1
  max_items_avail = 9
  noutput_items = 8191
  BLKD_IN
  were_done

<gr_block binary_slicer_fb (6)> regular 1:1
  max_items_avail = 0
  noutput_items = 32767
  BLKD_IN
  were_done

It appears that the elements are not draining, although I'm unclear on
why there is what seems to be 9 symbols remaining in the flow despite
the fact that I'm only missing 5 symbols. An EOF related problem?

I'll keep looking...

-Dan