mirror of https://github.com/gnss-sdr/gnss-sdr
150 lines
4.8 KiB
C++
150 lines
4.8 KiB
C++
/*!
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* \file tcp_communication.cc
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* \brief Implementation of the TCP communication class
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* \author David Pubill, 2011. dpubill(at)cttc.es
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*
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*
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* -----------------------------------------------------------------------------
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*
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* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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* This file is part of GNSS-SDR.
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*
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* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* -----------------------------------------------------------------------------
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*/
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#include "tcp_communication.h"
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#include "tcp_packet_data.h"
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#include <iostream>
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#include <stdexcept>
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#include <string>
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Tcp_Communication::Tcp_Communication() : tcp_socket_(io_context_) {} // NOLINT
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int Tcp_Communication::listen_tcp_connection(size_t d_port_, size_t d_port_ch0_)
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{
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try
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{
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// Specify IP type and port
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boost::asio::ip::tcp::endpoint endpoint(boost::asio::ip::tcp::v4(), d_port_);
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boost::asio::ip::tcp::acceptor acceptor(io_context_, endpoint);
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if (d_port_ == d_port_ch0_)
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{
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std::cout << "Server ready. Listening for TCP connections...\n";
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}
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// Reuse the IP address for each connection
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acceptor.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
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// Listen for a connection and accept it
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acceptor.listen(12);
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acceptor.accept(tcp_socket_);
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std::cout << "Socket accepted on port " << d_port_ << '\n';
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}
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catch (const std::exception& e)
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{
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std::cerr << "Exception: " << e.what() << '\n';
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}
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return false;
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}
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void Tcp_Communication::send_receive_tcp_packet_galileo_e1(boost::array<float, NUM_TX_VARIABLES_GALILEO_E1> buf, Tcp_Packet_Data* tcp_data_)
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{
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int controlc = 0;
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boost::array<float, NUM_RX_VARIABLES> readbuf{};
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float d_control_id_ = buf.data()[0];
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try
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{
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// Send a TCP packet
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if (tcp_socket_.write_some(boost::asio::buffer(buf)) == 0)
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{
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std::cerr << "Tcp_Communication: Error sending TCP packet\n";
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}
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// Read the received TCP packet
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if (tcp_socket_.read_some(boost::asio::buffer(readbuf)) == 0)
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{
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std::cerr << "Tcp_Communication: Error reading TCP packet\n";
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}
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//! Control. The GNSS-SDR program ends if an error in a TCP packet is detected.
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if (d_control_id_ != readbuf.data()[0])
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{
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throw std::runtime_error("Packet error!");
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}
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// Recover the variables received
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tcp_data_->proc_pack_code_error = readbuf.data()[1];
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tcp_data_->proc_pack_carr_error = readbuf.data()[2];
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tcp_data_->proc_pack_carrier_doppler_hz = readbuf.data()[3];
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}
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catch (const std::exception& e)
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{
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std::cerr << "Exception: " << e.what() << ". Please press Ctrl+C to end the program.\n";
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std::cin >> controlc;
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}
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}
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void Tcp_Communication::send_receive_tcp_packet_gps_l1_ca(boost::array<float, NUM_TX_VARIABLES_GPS_L1_CA> buf, Tcp_Packet_Data* tcp_data_)
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{
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int controlc = 0;
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boost::array<float, NUM_RX_VARIABLES> readbuf{};
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float d_control_id_ = buf.data()[0];
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try
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{
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// Send a TCP packet
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if (tcp_socket_.write_some(boost::asio::buffer(buf)) == 0)
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{
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std::cerr << "Tcp_Communication error sending TCP packet\n";
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}
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// Read the received TCP packet
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if (tcp_socket_.read_some(boost::asio::buffer(readbuf)) == 0)
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{
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std::cerr << "Tcp_Communication error: reading 0 bytes from TCP packet\n";
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}
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//! Control. The GNSS-SDR program ends if an error in a TCP packet is detected.
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if (d_control_id_ != readbuf.data()[0])
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{
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throw std::runtime_error("Packet error!");
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}
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// Recover the variables received
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tcp_data_->proc_pack_code_error = readbuf.data()[1];
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tcp_data_->proc_pack_carr_error = readbuf.data()[2];
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tcp_data_->proc_pack_carrier_doppler_hz = readbuf.data()[3];
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}
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catch (const std::exception& e)
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{
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std::cerr << "Exception: " << e.what() << ". Please press Ctrl+C to end the program.\n";
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std::cin >> controlc;
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}
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catch (...)
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{
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std::cerr << "Exception reading TCP data\n";
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}
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}
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void Tcp_Communication::close_tcp_connection(size_t d_port_)
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{
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// Close the TCP connection
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tcp_socket_.close();
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std::cout << "Socket closed on port " << d_port_ << '\n';
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}
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