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/*!
* \file control_thread.h
* \brief Interface of the receiver control plane
* \author Carlos Aviles, 2010. carlos.avilesr(at)googlemail.com
*
* GNSS Receiver Control Plane: connects the flowgraph, starts running it,
* and while it does not stop, reads the control messages generated by the blocks,
* processes them, and applies the corresponding actions.
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2015 (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/>.
*
* -------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_CONTROL_THREAD_H_
#define GNSS_SDR_CONTROL_THREAD_H_
#include <memory>
#include <vector>
#include <boost/thread.hpp>
#include <gnuradio/msg_queue.h>
#include "control_message_factory.h"
#include "gnss_sdr_supl_client.h"
class GNSSFlowgraph;
class ConfigurationInterface;
/*!
* \brief This class represents the main thread of the application, so the name is ControlThread.
* This is the GNSS Receiver Control Plane: it connects the flowgraph, starts running it,
* and while it does not stop, reads the control messages generated by the blocks,
* processes them, and applies the corresponding actions.
*/
class ControlThread
{
public:
/*!
* \brief Default constructor
*/
ControlThread();
/*!
* \brief Constructor that initializes the class with parameters
*
* \param[in] configuration Pointer to a ConfigurationInterface
*/
ControlThread(std::shared_ptr<ConfigurationInterface> configuration);
//! \brief Destructor
~ControlThread();
/*! \brief Runs the control thread
*
* This is the main loop that reads and process the control messages:
*
* - Connect the GNSS receiver flowgraph;
*
* - Start the GNSS receiver flowgraph;
*
* while (flowgraph_->running() && !stop_){
*
* - Read control messages and process them; }
*/
void run();
/*!
* \brief Sets the control_queue
*
* \param[in] boost::shared_ptr<gr::msg_queue> control_queue
*/
void set_control_queue(boost::shared_ptr<gr::msg_queue> control_queue);
unsigned int processed_control_messages()
{
return processed_control_messages_;
}
unsigned int applied_actions()
{
return applied_actions_;
}
/*!
* \brief Instantiates a flowgraph
*
* \return Returns a smart pointer to a flowgraph object
*/
std::shared_ptr<GNSSFlowgraph> flowgraph()
{
return flowgraph_;
}
private:
//SUPL assistance classes
gnss_sdr_supl_client supl_client_acquisition_;
gnss_sdr_supl_client supl_client_ephemeris_;
int supl_mcc; // Current network MCC (Mobile country code), 3 digits.
int supl_mns; // Current network MNC (Mobile Network code), 2 or 3 digits.
int supl_lac; // Current network LAC (Location area code),16 bits, 1-65520 are valid values.
int supl_ci; // Cell Identity (16 bits, 0-65535 are valid values).
void init();
// Read {ephemeris, iono, utc, ref loc, ref time} assistance from a local XML file previously recorded
bool read_assistance_from_XML();
// Save {ephemeris, iono, utc, ref loc, ref time} assistance to a local XML file
//bool save_assistance_to_XML();
void read_control_messages();
void process_control_messages();
/*
* Blocking function that reads the GPS assistance queue
*/
void gps_acq_assist_data_collector();
/*
* Read initial GNSS assistance from SUPL server or local XML files
*/
void assist_GNSS();
void apply_action(unsigned int what);
std::shared_ptr<GNSSFlowgraph> flowgraph_;
std::shared_ptr<ConfigurationInterface> configuration_;
boost::shared_ptr<gr::msg_queue> control_queue_;
std::shared_ptr<ControlMessageFactory> control_message_factory_;
std::shared_ptr<std::vector<std::shared_ptr<ControlMessage>>> control_messages_;
bool stop_;
bool delete_configuration_;
unsigned int processed_control_messages_;
unsigned int applied_actions_;
boost::thread keyboard_thread_;
boost::thread sysv_queue_thread_;
boost::thread gps_acq_assist_data_collector_thread_;
void keyboard_listener();
void sysv_queue_listener();
int msqid;
// default filename for assistance data
const std::string eph_default_xml_filename = "./gps_ephemeris.xml";
const std::string utc_default_xml_filename = "./gps_utc_model.xml";
const std::string iono_default_xml_filename = "./gps_iono.xml";
const std::string ref_time_default_xml_filename = "./gps_ref_time.xml";
const std::string ref_location_default_xml_filename = "./gps_ref_location.xml";
};
#endif /*GNSS_SDR_CONTROL_THREAD_H_*/