Bastian Bloessl
107 lines
3.1 KiB
C++
107 lines
3.1 KiB
C++
/*
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* Copyright (C) 2014 Bastian Bloessl <bloessl@ccs-labs.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <ieee802-11/wifi_edca.h>
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#include <gnuradio/io_signature.h>
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#include <gnuradio/block_detail.h>
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#include "utils.h"
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#include <boost/crc.hpp>
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#include <iostream>
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#include <stdexcept>
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using namespace gr::ieee802_11;
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class wifi_edca_impl : public wifi_edca {
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public:
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wifi_edca_impl(std::vector<uint16_t> cw_min, std::vector<uint16_t>aifsn) :
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block("wifi_edca",
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gr::io_signature::make(0, 0, 0),
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gr::io_signature::make(0, 0, 0)),
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m_cw_min(cw_min), m_aifsn(aifsn)
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{
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if(cw_min.size() != aifsn.size()) {
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throw std::invalid_argument("WiFi EDCA: cw_min and aifsn parameters have to have same length");
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}
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if(cw_min.size() == 0) {
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throw std::invalid_argument("WiFi EDCA need cw_min and aifsn");
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}
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message_port_register_out(pmt::mp("mac out"));
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if(cw_min.size() == 1) {
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message_port_register_in(pmt::mp("ac_in"));
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set_msg_handler(pmt::mp("ac_in"), boost::bind(&wifi_edca_impl::ac_in, this, _1, 0));
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} else {
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for(int i = 0; i < cw_min.size(); i++) {
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std::stringstream sstm;
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sstm << "ac in" << i;
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message_port_register_in(pmt::mp(sstm.str()));
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set_msg_handler(pmt::mp(sstm.str()), boost::bind(&wifi_edca_impl::ac_in, this, _1, i));
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}
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}
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}
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void ac_in (pmt::pmt_t msg, int i) {
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std::cout << "ac " << i << std::endl;
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if(pmt::is_eof_object(msg)) {
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message_port_pub(pmt::mp("mac out"), pmt::PMT_EOF);
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detail().get()->set_done(true);
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} else if(pmt::is_symbol(msg)) {
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std::string str;
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str = pmt::symbol_to_string(msg);
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pmt::pmt_t dict = pmt::make_dict();
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dict = pmt::dict_add(dict, pmt::mp("cw_min"), pmt::from_long(m_cw_min[i]));
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dict = pmt::dict_add(dict, pmt::mp("aifsn"), pmt::from_long(m_aifsn[i]));
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pmt::pmt_t blob = pmt::make_blob(str.data(), str.length());
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pmt::pmt_t pair = pmt::cons(dict, blob);
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message_port_pub(pmt::mp("mac out"), pair);
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} else if(pmt::is_pair(msg)) {
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pmt::pmt_t dict = pmt::car(msg);
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dict = pmt::dict_add(dict, pmt::mp("cw_min"), pmt::from_long(m_cw_min[i]));
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dict = pmt::dict_add(dict, pmt::mp("aifsn"), pmt::from_long(m_aifsn[i]));
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message_port_pub(pmt::mp("mac out"), pmt::cons(dict, pmt::cdr(msg)));
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} else {
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throw std::invalid_argument("WiFi EDCA expects PDUs or strings");
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}
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}
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private:
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std::vector<uint16_t>m_cw_min;
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std::vector<uint16_t>m_aifsn;
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};
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wifi_edca::sptr
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wifi_edca::make(std::vector<uint16_t>cw_min, std::vector<uint16_t> aifsn) {
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return gnuradio::get_initial_sptr(new wifi_edca_impl(cw_min, aifsn));
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}
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