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/* -*- c++ -*- */
/* Copyright 2012 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 "packet_headerparser_b_impl.h"
#include <gnuradio/io_signature.h>
#include <boost/format.hpp>
namespace gr {
namespace digital {
packet_headerparser_b::sptr packet_headerparser_b::make(long header_len,
const std::string& len_tag_key)
{
const packet_header_default::sptr header_formatter(
new packet_header_default(header_len, len_tag_key));
return gnuradio::make_block_sptr<packet_headerparser_b_impl>(header_formatter);
}
packet_headerparser_b::sptr packet_headerparser_b::make(
const gr::digital::packet_header_default::sptr& header_formatter)
{
return gnuradio::make_block_sptr<packet_headerparser_b_impl>(header_formatter);
}
packet_headerparser_b_impl::packet_headerparser_b_impl(
const gr::digital::packet_header_default::sptr& header_formatter)
: sync_block("packet_headerparser_b",
io_signature::make(1, 1, sizeof(unsigned char)),
io_signature::make(0, 0, 0)),
d_header_formatter(header_formatter),
d_port(pmt::mp("header_data"))
{
message_port_register_out(d_port);
set_output_multiple(header_formatter->header_len());
}
packet_headerparser_b_impl::~packet_headerparser_b_impl() {}
int packet_headerparser_b_impl::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
const unsigned char* in = (const unsigned char*)input_items[0];
if (noutput_items < d_header_formatter->header_len()) {
return 0;
}
std::vector<tag_t> tags;
get_tags_in_range(
tags, 0, nitems_read(0), nitems_read(0) + d_header_formatter->header_len());
if (!d_header_formatter->header_parser(in, tags)) {
GR_LOG_INFO(d_logger,
boost::format("Detected an invalid packet at item %1%") %
nitems_read(0));
message_port_pub(d_port, pmt::PMT_F);
} else {
pmt::pmt_t dict(pmt::make_dict());
for (unsigned i = 0; i < tags.size(); i++) {
dict = pmt::dict_add(dict, tags[i].key, tags[i].value);
}
message_port_pub(d_port, dict);
}
return d_header_formatter->header_len();
}
} /* namespace digital */
} /* namespace gr */
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