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/* -*- c++ -*- */
/*
* Copyright 2004,2010,2013 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "null_source_impl.h"
#include <gnuradio/io_signature.h>
#include <string.h>
namespace gr {
namespace blocks {
null_source::sptr null_source::make(size_t sizeof_stream_item)
{
return gnuradio::get_initial_sptr(new null_source_impl(sizeof_stream_item));
}
null_source_impl::null_source_impl(size_t sizeof_stream_item)
: sync_block("null_source",
io_signature::make(0, 0, 0),
io_signature::make(1, -1, sizeof_stream_item))
{
}
null_source_impl::~null_source_impl() {}
int null_source_impl::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
void* optr;
for (size_t n = 0; n < input_items.size(); n++) {
optr = (void*)output_items[n];
memset(optr, 0, noutput_items * output_signature()->sizeof_stream_item(n));
}
return noutput_items;
}
} /* namespace blocks */
} /* namespace gr */
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