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/* -*- c++ -*- */
/* Copyright 2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <boost/format.hpp>
#include <gnuradio/io_signature.h>
#include "packet_headergenerator_bb_impl.h"
namespace gr {
namespace digital {
packet_headergenerator_bb::sptr
packet_headergenerator_bb::make(
const packet_header_default::sptr &header_formatter,
const std::string &len_tag_key
)
{
return gnuradio::get_initial_sptr (new packet_headergenerator_bb_impl(header_formatter, len_tag_key));
}
packet_headergenerator_bb::sptr
packet_headergenerator_bb::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::get_initial_sptr (new packet_headergenerator_bb_impl(header_formatter, len_tag_key));
}
packet_headergenerator_bb_impl::packet_headergenerator_bb_impl(
const gr::digital::packet_header_default::sptr &header_formatter,
const std::string &len_tag_key
)
: tagged_stream_block("packet_headergenerator_bb_impl",
io_signature::make(1, 1, sizeof (char)),
io_signature::make(1, 1, sizeof (char)),
len_tag_key),
d_formatter(header_formatter)
{
set_output_multiple(d_formatter->header_len());
// This is the worst case rate, because we don't know the true value, of course
set_relative_rate(d_formatter->header_len());
set_tag_propagation_policy(TPP_DONT);
}
packet_headergenerator_bb_impl::~packet_headergenerator_bb_impl()
{
}
int
packet_headergenerator_bb_impl::work (int noutput_items,
gr_vector_int &ninput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
unsigned char *out = (unsigned char *) output_items[0];
if (!d_formatter->header_formatter(ninput_items[0], out)) {
GR_LOG_FATAL(d_logger, boost::format("header_formatter() returned false (this shouldn't happen). Offending header started at %1%") % nitems_read(0));
throw std::runtime_error("header formatter returned false.");
}
return d_formatter->header_len();
}
} /* namespace digital */
} /* namespace gr */
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