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////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include "TCP.hpp"
#include <SFML/Network.hpp>
#include <iomanip>
#include <iostream>
#include <optional>
#include <string_view>
#include <cstddef>
////////////////////////////////////////////////////////////
/// Launch a server, wait for an incoming connection,
/// send a message and wait for the answer.
///
////////////////////////////////////////////////////////////
void runTcpServer(unsigned short port)
{
// Create a server socket to accept new connections
sf::TcpListener listener;
// Listen to the given port for incoming connections
if (listener.listen(port) != sf::Socket::Status::Done)
return;
std::cout << "Server is listening to port " << port << ", waiting for connections... " << std::endl;
// Wait for a connection
sf::TcpSocket socket;
if (listener.accept(socket) != sf::Socket::Status::Done)
return;
std::cout << "Client connected: " << socket.getRemoteAddress().value() << std::endl;
// Send a message to the connected client
static constexpr std::string_view out = "Hi, I'm the server";
if (socket.send(out.data(), out.size()) != sf::Socket::Status::Done)
return;
std::cout << "Message sent to the client: " << std::quoted(out.data()) << std::endl;
// Receive a message back from the client
std::array<char, 128> in{};
std::size_t received = 0;
if (socket.receive(in.data(), in.size(), received) != sf::Socket::Status::Done)
return;
std::cout << "Answer received from the client: " << std::quoted(in.data()) << std::endl;
}
////////////////////////////////////////////////////////////
/// Create a client, connect it to a server, display the
/// welcome message and send an answer.
///
////////////////////////////////////////////////////////////
void runTcpClient(unsigned short port)
{
// Ask for the server address
std::optional<sf::IpAddress> server;
do
{
std::cout << "Type the address or name of the server to connect to: ";
std::cin >> server;
} while (!server.has_value());
// Create a socket for communicating with the server
sf::TcpSocket socket;
// Connect to the server
if (socket.connect(server.value(), port) != sf::Socket::Status::Done)
return;
std::cout << "Connected to server " << server.value() << std::endl;
// Receive a message from the server
std::array<char, 128> in{};
std::size_t received = 0;
if (socket.receive(in.data(), in.size(), received) != sf::Socket::Status::Done)
return;
std::cout << "Message received from the server: " << std::quoted(in.data()) << std::endl;
// Send an answer to the server
static constexpr std::string_view out = "Hi, I'm a client";
if (socket.send(out.data(), out.size()) != sf::Socket::Status::Done)
return;
std::cout << "Message sent to the server: " << std::quoted(out.data()) << std::endl;
}
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