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/* -*- c++ -*- */
/* @file
* @author (C) 2017 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 "burst_type_filter_impl.h"
#include <stdio.h>
#include <grgsm/endian.h>
#include <grgsm/gsmtap.h>
namespace gr {
namespace gsm {
burst_type_filter::sptr
burst_type_filter::make(const std::vector<uint8_t> & selected_burst_types)
{
return gnuradio::get_initial_sptr
(new burst_type_filter_impl(selected_burst_types));
}
/*
* The private constructor
*/
burst_type_filter_impl::burst_type_filter_impl(const std::vector<uint8_t> & selected_burst_types)
: gr::block("burst_type_filter",
gr::io_signature::make(0, 0, 0),
gr::io_signature::make(0, 0, 0)),
d_filter_policy(FILTER_POLICY_DEFAULT)
{
set_selected_burst_types(selected_burst_types);
message_port_register_in(pmt::mp("bursts_in"));
message_port_register_out(pmt::mp("bursts_out"));
set_msg_handler(pmt::mp("bursts_in"), boost::bind(&burst_type_filter_impl::process_burst, this, boost::placeholders::_1));
}
/*
* Our virtual destructor.
*/
burst_type_filter_impl::~burst_type_filter_impl() {}
void burst_type_filter_impl::process_burst(pmt::pmt_t msg)
{
if (d_filter_policy == FILTER_POLICY_DROP_ALL)
return;
if (d_filter_policy == FILTER_POLICY_PASS_ALL) {
message_port_pub(pmt::mp("bursts_out"), msg);
return;
}
gsmtap_hdr * header = (gsmtap_hdr *)pmt::blob_data(pmt::cdr(msg));
if (std::find(d_selected_burst_types.begin(), d_selected_burst_types.end(), header->sub_type) != d_selected_burst_types.end()) //check if burst type is listed in burst types to pass
{
message_port_pub(pmt::mp("bursts_out"), msg);
}
}
/* Filtering policy */
filter_policy
burst_type_filter_impl::get_policy(void)
{
return d_filter_policy;
}
filter_policy
burst_type_filter_impl::set_policy(filter_policy policy)
{
d_filter_policy = policy;
return d_filter_policy;
}
void
burst_type_filter_impl::set_selected_burst_types(const std::vector<uint8_t> & selected_burst_types)
{
d_selected_burst_types.assign(selected_burst_types.begin(), selected_burst_types.end());
}
} /* namespace gsm */
} /* namespace gr */
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