gr-gsm/lib/misc_utils/msg_to_tag_impl.cc

100 lines
3.0 KiB
C++

/* -*- c++ -*- */
/* @file
* @author (C) 2016 by Piotr Krysik <ptrkrysik@gmail.com>
* @section LICENSE
*
* Gr-gsm 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.
*
* Gr-gsm 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 gr-gsm; 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 <gnuradio/io_signature.h>
#include "msg_to_tag_impl.h"
namespace gr {
namespace gsm {
msg_to_tag::sptr
msg_to_tag::make()
{
return gnuradio::get_initial_sptr
(new msg_to_tag_impl());
}
void msg_to_tag_impl::queue_msg(pmt::pmt_t msg){
if(pmt::is_dict(msg)){
try {
pmt::pmt_t keys = pmt::dict_keys(msg);
} catch (const pmt::wrong_type &e) {
msg = pmt::dict_add(pmt::make_dict(), pmt::car(msg), pmt::cdr(msg));
}
}
d_msg_queue.push_back(msg);
}
/*
* The private constructor
*/
msg_to_tag_impl::msg_to_tag_impl()
: gr::sync_block("msg_to_tag",
gr::io_signature::make(1, 1, sizeof(gr_complex)),
gr::io_signature::make(1, 1, sizeof(gr_complex)))
{
message_port_register_in(pmt::mp("msg"));
set_msg_handler(pmt::mp("msg"), boost::bind(&msg_to_tag_impl::queue_msg, this, boost::placeholders::_1));
}
/*
* Our virtual destructor.
*/
msg_to_tag_impl::~msg_to_tag_impl()
{
}
int
msg_to_tag_impl::work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
while(!d_msg_queue.empty()){
pmt::pmt_t msg(d_msg_queue.front());
d_msg_queue.pop_front();
if(pmt::is_dict(msg)){
pmt::pmt_t klist(pmt::dict_keys(msg));
for (size_t i = 0; i < pmt::length(klist); i++) {
pmt::pmt_t k(pmt::nth(i, klist));
pmt::pmt_t v(pmt::dict_ref(msg, k, pmt::PMT_NIL));
add_item_tag(0, nitems_written(0), k, v, alias_pmt());
}
} else if(pmt::is_number(msg)) {
add_item_tag(0, nitems_written(0), pmt::intern(""), msg, alias_pmt());
} else if(pmt::is_symbol(msg)) {
add_item_tag(0, nitems_written(0), msg, pmt::intern(""), alias_pmt());
}
}
memcpy(output_items[0], input_items[0], sizeof(gr_complex)*noutput_items);
// Tell runtime system how many output items we produced.
return noutput_items;
}
} /* namespace gsm */
} /* namespace gr */