forked from sdr/gr-osmosdr
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright 2004,2010,2013 Free Software Foundation, Inc.
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*
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* This file is part of GNU Radio
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*
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* GNU Radio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* GNU Radio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef INCLUDED_GR_NULL_SOURCE_H
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#define INCLUDED_GR_NULL_SOURCE_H
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#include <gnuradio/blocks/api.h>
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#include <gnuradio/sync_block.h>
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namespace gr {
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namespace blocks {
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/*!
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* \brief A source of zeros used mainly for testing.
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* \ingroup misc_blk
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*/
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class BLOCKS_API null_source : virtual public sync_block
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{
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public:
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// gr::blocks::null_source::sptr
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typedef boost::shared_ptr<null_source> sptr;
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/*!
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* Build a null source block.
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*
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* \param sizeof_stream_item size of the stream items in bytes.
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*/
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static sptr make(size_t sizeof_stream_item);
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};
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} /* namespace blocks */
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} /* namespace gr */
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#endif /* INCLUDED_GR_NULL_SOURCE_H */
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