Bastian Bloessl
54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
/*
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* Copyright (C) 2013 Christoph Leitner <c.leitner@student.uibk.ac.at>
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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 "packet_dropper_impl.h"
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#include <gnuradio/io_signature.h>
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using namespace gr::foo;
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packet_dropper_impl::packet_dropper_impl(double drop_rate, unsigned long seed)
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: block("packet_dropper",
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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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d_drop_rate(drop_rate),
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d_generator(seed),
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d_distribution(0.0, 1.0)
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{
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if(d_drop_rate >= 1){
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throw std::out_of_range("drop rate has to be < 1");
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}
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message_port_register_in(pmt::mp("in"));
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set_msg_handler(pmt::mp("in"), boost::bind(&packet_dropper_impl::msg_handler, this, _1));
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message_port_register_out(pmt::mp("out"));
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}
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void
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packet_dropper_impl::msg_handler(pmt::pmt_t msg)
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{
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if(d_distribution(d_generator) <= d_drop_rate){
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return;
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}
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message_port_pub(pmt::mp("out"), msg);
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}
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packet_dropper::sptr
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packet_dropper::make(double drop_rate, unsigned long seed)
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{
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return gnuradio::get_initial_sptr(new packet_dropper_impl(drop_rate, seed));
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}
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