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C++

/**
* Copyright 2013-2021 Software Radio Systems Limited
*
* This file is part of srsRAN.
*
* srsRAN is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsRAN 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 Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <assert.h>
#include <boost/program_options.hpp>
#include <boost/program_options/parsers.hpp>
#include <chrono>
#include <iostream>
#include <signal.h>
#include <thread>
#include "srsran/common/basic_pnf.h"
using namespace std;
namespace bpo = boost::program_options;
struct pnf_args_t {
std::string gnb_vnf_addr;
std::string ue_vnf_addr;
uint16_t gnb_vnf_port;
uint16_t ue_vnf_port;
uint32_t sf_interval;
int32_t num_sf;
uint32_t tb_len;
};
void parse_args(pnf_args_t* args, int argc, char* argv[])
{
// Command line only options
bpo::options_description general("General options");
general.add_options()("help,h", "Produce help message")("version,v", "Print version information and exit");
// Command line or config file options
bpo::options_description common("Configuration options");
// clang-format off
common.add_options()
("vnf.gnb_addr", bpo::value<string>(&args->gnb_vnf_addr)->default_value("127.0.0.1"), "VNF address")
("vnf.ue_addr", bpo::value<string>(&args->ue_vnf_addr)->default_value("127.0.0.1"), "VNF address")
("vnf.gnb_port", bpo::value<uint16_t>(&args->gnb_vnf_port)->default_value(3333), "gNB VNF port")
("vnf.ue_port", bpo::value<uint16_t>(&args->ue_vnf_port)->default_value(3334), "UE VNF port")
("sf_interval", bpo::value<uint32_t>(&args->sf_interval)->default_value(1000), "Interval between subframes in us")
("num_sf", bpo::value<int32_t>(&args->num_sf)->default_value(-1), "Number of subframes to signal (-1 infinity)")
("tb_len", bpo::value<uint32_t>(&args->tb_len)->default_value(1600), "TB lenth (0 for random size)");
// clang-format on
// these options are allowed on the command line
bpo::options_description cmdline_options;
cmdline_options.add(common).add(general);
// parse the command line and store result in vm
bpo::variables_map vm;
bpo::store(bpo::command_line_parser(argc, argv).options(cmdline_options).run(), vm);
bpo::notify(vm);
// help option was given - print usage and exit
if (vm.count("help")) {
cout << "Usage: " << argv[0] << " [OPTIONS] config_file" << endl << endl;
cout << common << endl << general << endl;
exit(0);
}
}
bool running = true;
void sig_int_handler(int signo)
{
printf("SIGINT received. Exiting...\n");
if (signo == SIGINT) {
running = false;
}
}
int main(int argc, char** argv)
{
signal(SIGINT, sig_int_handler);
pnf_args_t args;
parse_args(&args, argc, argv);
srsran::srsran_basic_pnf ue_pnf("ue", args.ue_vnf_addr, args.ue_vnf_port, args.sf_interval, args.num_sf, args.tb_len);
srsran::srsran_basic_pnf gnb_pnf(
"gnb", args.gnb_vnf_addr, args.gnb_vnf_port, args.sf_interval, args.num_sf, args.tb_len);
gnb_pnf.connect_out_rf_queue(ue_pnf.get_in_rf_queue());
ue_pnf.start();
gnb_pnf.start();
while (running) {
for (uint32_t i = 0; i < 2; ++i) {
srsran::pnf_metrics_t metrics = (i == 0) ? ue_pnf.get_metrics() : gnb_pnf.get_metrics();
printf("%s: RTT=%d, #Error=%d, #PDUs=%d, Total TB size=%d, Rate=%.2f Mbit/s\n",
i == 0 ? "UE" : "gNB",
metrics.avg_rtt_us,
metrics.num_timing_errors,
metrics.num_pdus,
metrics.tb_size,
metrics.tb_size * 8 / 1.0e6);
}
std::this_thread::sleep_for(std::chrono::seconds(1));
}
ue_pnf.stop();
gnb_pnf.stop();
return 0;
}