1 /* -*- c++ -*- */
2 /*
3 * Copyright 2013 Free Software Foundation, Inc.
4 *
5 * This file is part of GNU Radio
6 *
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
10 * any later version.
11 *
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
21 */
22
23 #ifdef HAVE_CONFIG_H
24 #include "config.h"
25 #endif
26
27 #include "pdu_remove_impl.h"
28 #include <gnuradio/blocks/pdu.h>
29 #include <gnuradio/io_signature.h>
30
31 namespace gr {
32 namespace blocks {
33
make(pmt::pmt_t k)34 pdu_remove::sptr pdu_remove::make(pmt::pmt_t k)
35 {
36 return gnuradio::get_initial_sptr(new pdu_remove_impl(k));
37 }
38
pdu_remove_impl(pmt::pmt_t k)39 pdu_remove_impl::pdu_remove_impl(pmt::pmt_t k)
40 : block("pdu_remove", io_signature::make(0, 0, 0), io_signature::make(0, 0, 0)),
41 d_k(k)
42 {
43 message_port_register_out(pdu::pdu_port_id());
44 message_port_register_in(pdu::pdu_port_id());
45 set_msg_handler(pdu::pdu_port_id(),
46 [this](pmt::pmt_t msg) { this->handle_msg(msg); });
47 }
48
handle_msg(pmt::pmt_t pdu)49 void pdu_remove_impl::handle_msg(pmt::pmt_t pdu)
50 {
51 // add the field and publish
52 pmt::pmt_t meta = pmt::car(pdu);
53 if (pmt::is_null(meta)) {
54 meta = pmt::make_dict();
55 } else if (!pmt::is_dict(meta)) {
56 throw std::runtime_error("pdu_remove received non PDU input");
57 }
58 meta = pmt::dict_delete(meta, d_k);
59 message_port_pub(pdu::pdu_port_id(), pmt::cons(meta, pmt::cdr(pdu)));
60 }
61
62 } /* namespace blocks */
63 } /* namespace gr */
64