gnss-sdr/src/main/main.cc

/*!
 * \file main.cc
 * \brief Main file of the GNSS-SDR program.
 * \author Carlos Aviles, 2010. carlos.avilesr(at)googlemail.com
 *
 * It sets up the logging system, creates a ControlThread object,
 * makes it run, and releases memory back when the main thread has ended.
 *
 * -------------------------------------------------------------------------
 *
 * Copyright (C) 2010-2012  (see AUTHORS file for a list of contributors)
 *
 * GNSS-SDR is a software defined Global Navigation
 *          Satellite Systems receiver
 *
 * This file is part of GNSS-SDR.
 *
 * GNSS-SDR 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 of the License, or
 * at your option) any later version.
 *
 * GNSS-SDR 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 GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
 *
 * -------------------------------------------------------------------------
 */

#include <boost/filesystem.hpp>
#include <gflags/gflags.h>
#include <glog/log_severity.h>
#include <glog/logging.h>
#include <gnuradio/gr_msg_queue.h>
#include "control_thread.h"
#include <queue>
#include <boost/thread/mutex.hpp>
#include <boost/thread/thread.hpp>
#include "concurrent_queue.h"
#include "gps_navigation_message.h"

using google::LogMessage;

DECLARE_string(log_dir);

/*!
 * \todo  make this queue generic for all the GNSS systems (javi)
 */

/*
 * Concurrent queue that communicates the Telemetry Decoder
 * to the Observables modules
 */
concurrent_queue<gps_navigation_message> global_gps_nav_msg_queue;

int main(int argc, char** argv)
{
    const std::string intro_help(
            std::string("\nGNSS-SDR is an Open Source GNSS Software Defined Receiver\n")
    +
    "Copyright (C) 2010-2011 (see AUTHORS file for a list of contributors)\n"
    +
    "This program comes with ABSOLUTELY NO WARRANTY;\n"
    +
    "See COPYING file to see a copy of the General Public License\n \n");


    google::SetUsageMessage(intro_help);
    google::SetVersionString("0.1");
    google::ParseCommandLineFlags(&argc, &argv, true);

    std::cout<<"Initializing GNSS-SDR... Please wait"<<std::endl;

    google::InitGoogleLogging(argv[0]);
    if (FLAGS_log_dir.empty())
        {
            // temp_directory_path() is only available from Boost 1.45. Ubuntu 10.10 ships with 1.42
            //std::cout << "Logging will be done at " << boost::filesystem::temp_directory_path() << std::endl
            //        << "Use gnss-sdr --log_dir=/path/to/log to change that."<< std::endl;
        }
    else
        {
            const boost::filesystem::path p (FLAGS_log_dir);
            if (!boost::filesystem::exists(p))
                {
                    std::cout << "The path " << FLAGS_log_dir << " does not exist, attempting to create it" << std::endl;
                    boost::filesystem::create_directory(p);
                }
            std::cout << "Logging with be done at " << FLAGS_log_dir << std::endl;
        }



    ControlThread *control_thread = new ControlThread();

    control_thread->run();

    delete control_thread;

    google::ShutDownCommandLineFlags();
    std::cout<<"GNSS-SDR program ended"<<std::endl;
}