Hi all,
please can someone tell me why that work method ( like others in the
digital_odfm_xx ) does not call consume_each (n) or consume ( i,n ) ?
many thanks,
Stefano
Hi,
it looks like the block inherits from gr_tagged_stream_block which will
will call a blocks work function with the exact number of samples for
one PDU with a known size in general_work and will call consume for you
afterwards.
Yours
Martin
Am 29.06.2013 08:15, schrieb Stefano:
On Sat, Jun 29, 2013 at 01:10:31PM +0200, Stefano wrote:
it looks like the block inherits from gr_tagged_stream_block which
will will call a blocks work function with the exact number of
samples for one PDU with a known size in general_work and will
call consume for you afterwards.
For the record: No work() function should ever call consume,
regardless of its type (currently, that would be either gr_sync_block,
gr_sync_decimator, gr_sync_interpolator and gr_tagged_stream_block).
Only call consume() or consume_each() from general_work().
There’s one exception: gr_tagged_stream_blocks may fall back to gr_block
behaviour. The cyclic prefixer you mention is such a case, because it is
a modification of an existing block, and provides gr_block style
behaviour for backward compatibility. See:
http://gnuradio.org/doc/doxygen/page_tagged_stream_blocks.html
MB
–
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)
Dipl.-Ing. Martin B.
Research Associate
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Thanks Martin, very helpful; forgotten to take a look at the block type.
Stefano
Il 29/06/2013 10:24, Martin L. ha scritto: