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gnss-sdr/src/core/receiver/tcp_cmd_interface.cc

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/*!
* \file tcp_cmd_interface.cc
*
* \brief Class that implements a TCP telecontrol command line interface
* for GNSS-SDR
* \author Javier Arribas jarribas (at) cttc.es
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2018 (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 <https://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#include "tcp_cmd_interface.h"
#include "control_message_factory.h"
#include <functional>
std::string TcpCmdInterface::reset(const std::vector<std::string> &commandLine)
{
std::string response;
std::unique_ptr<ControlMessageFactory> cmf(new ControlMessageFactory());
if (control_queue_ != nullptr)
{
control_queue_->handle(cmf->GetQueueMessage(200, 1)); //send the restart message (who=200,what=1)
response = "OK\n";
}
else
{
response = "ERROR\n";
}
return response;
}
std::string TcpCmdInterface::standby(const std::vector<std::string> &commandLine)
{
std::string response;
std::unique_ptr<ControlMessageFactory> cmf(new ControlMessageFactory());
if (control_queue_ != nullptr)
{
control_queue_->handle(cmf->GetQueueMessage(300, 10)); //send the standby message (who=300,what=10)
response = "OK\n";
}
else
{
response = "ERROR\n";
}
return response;
}
std::string TcpCmdInterface::status(const std::vector<std::string> &commandLine)
{
std::string response;
//todo: implement the receiver status report
response = "Not implemented\n";
return response;
}
std::string TcpCmdInterface::hotstart(const std::vector<std::string> &commandLine)
{
std::string response;
//todo: read and parse the command line parameter: dd/mm/yyyy HH:MM:SS
//todo: store it in a member variable
std::unique_ptr<ControlMessageFactory> cmf(new ControlMessageFactory());
if (control_queue_ != nullptr)
{
control_queue_->handle(cmf->GetQueueMessage(300, 12)); //send the standby message (who=300,what=12)
response = "OK\n";
}
else
{
response = "ERROR\n";
}
return response;
}
std::string TcpCmdInterface::warmstart(const std::vector<std::string> &commandLine)
{
std::string response;
//todo: read and parse the command line parameter: dd/mm/yyyy HH:MM:SS
//todo: store it in a member variable
std::unique_ptr<ControlMessageFactory> cmf(new ControlMessageFactory());
if (control_queue_ != nullptr)
{
control_queue_->handle(cmf->GetQueueMessage(300, 13)); //send the standby message (who=300,what=13)
response = "OK\n";
}
else
{
response = "ERROR\n";
}
return response;
}
std::string TcpCmdInterface::coldstart(const std::vector<std::string> &commandLine)
{
std::string response;
std::unique_ptr<ControlMessageFactory> cmf(new ControlMessageFactory());
if (control_queue_ != nullptr)
{
control_queue_->handle(cmf->GetQueueMessage(300, 11)); //send the standby message (who=300,what=11)
response = "OK\n";
}
else
{
response = "ERROR\n";
}
return response;
}
std::string TcpCmdInterface::set_ch_satellite(const std::vector<std::string> &commandLine)
{
std::string response;
//todo: implement the set satellite command
response = "Not implemented\n";
return response;
}
void TcpCmdInterface::register_functions()
{
functions["status"] = std::bind(&TcpCmdInterface::status, this, std::placeholders::_1);
functions["standby"] = std::bind(&TcpCmdInterface::standby, this, std::placeholders::_1);
functions["reset"] = std::bind(&TcpCmdInterface::reset, this, std::placeholders::_1);
functions["hotstart"] = std::bind(&TcpCmdInterface::hotstart, this, std::placeholders::_1);
functions["warmstart"] = std::bind(&TcpCmdInterface::warmstart, this, std::placeholders::_1);
functions["coldstart"] = std::bind(&TcpCmdInterface::coldstart, this, std::placeholders::_1);
functions["set_ch_satellite"] = std::bind(&TcpCmdInterface::set_ch_satellite, this, std::placeholders::_1);
}
TcpCmdInterface::TcpCmdInterface()
{
register_functions();
keep_running_ = true;
control_queue_ = nullptr;
}
void TcpCmdInterface::set_msg_queue(gr::msg_queue::sptr control_queue)
{
control_queue_ = control_queue;
}
void TcpCmdInterface::run_cmd_server(int tcp_port)
{
// Get the port from the parameters
uint16_t port = tcp_port;
// Error to not throw exception
boost::system::error_code not_throw;
// Socket and acceptor
boost::asio::io_service service;
try
{
boost::asio::ip::tcp::acceptor acceptor(service, boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), port));
while (keep_running_)
{
try
{
std::cout << "TcpCmdInterface: Telecommand TCP interface listening on port " << tcp_port << std::endl;
boost::asio::ip::tcp::socket socket(service);
acceptor.accept(socket, not_throw);
if (not_throw)
{
std::cout << "TcpCmdInterface: Error when binding the port in the socket" << std::endl;
continue;
}
// Read a message
boost::system::error_code error = boost::asio::error::eof;
do
{
std::string response;
boost::asio::streambuf b;
boost::asio::read_until(socket, b, '\n', error);
std::istream is(&b);
std::string line;
std::getline(is, line);
std::istringstream iss(line);
std::vector<std::string> cmd_vector(std::istream_iterator<std::string>{iss},
std::istream_iterator<std::string>());
if (cmd_vector.size() > 0)
{
try
{
if (cmd_vector.at(0).compare("exit") == 0)
{
error = boost::asio::error::eof;
//send cmd response
socket.write_some(boost::asio::buffer("OK\n"), not_throw);
}
else
{
response = functions[cmd_vector.at(0)](cmd_vector);
}
}
catch (const std::exception &ex)
{
response = "ERROR: command execution error: " + std::string(ex.what()) + "\n";
}
}
else
{
response = "ERROR: empty command\n";
}
//send cmd response
socket.write_some(boost::asio::buffer(response), not_throw);
if (not_throw)
{
std::cout << "Error sending(" << not_throw.value() << "): " << not_throw.message() << std::endl;
break;
}
}
while (error != boost::asio::error::eof);
if (error == boost::asio::error::eof)
{
std::cout << "TcpCmdInterface: EOF detected\n";
}
else
{
std::cout << "TcpCmdInterface unexpected error: " << error << std::endl;
}
// Close socket
socket.close();
}
catch (const boost::exception &e)
{
std::cout << "TcpCmdInterface: Boost exception " << std::endl;
}
catch (const std::exception &ex)
{
std::cout << "TcpCmdInterface: Exception " << ex.what() << std::endl;
}
}
}
catch (const boost::exception &e)
{
std::cout << "TCP Command Interface exception: address already in use" << std::endl;
}
}
TcpCmdInterface::~TcpCmdInterface()
{
// TODO Auto-generated destructor stub
}
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