SFML/examples/sockets/TCP.cpp
2023-11-29 15:54:38 -07:00

82 lines
2.8 KiB
C++

////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Network.hpp>
#include <iomanip>
#include <iostream>
////////////////////////////////////////////////////////////
/// 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
const char out[] = "Hi, I'm the server";
if (socket.send(out, sizeof(out)) != sf::Socket::Status::Done)
return;
std::cout << "Message sent to the client: " << std::quoted(out) << std::endl;
// Receive a message back from the client
char in[128];
std::size_t received;
if (socket.receive(in, sizeof(in), received) != sf::Socket::Status::Done)
return;
std::cout << "Answer received from the client: " << std::quoted(in) << 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
char in[128];
std::size_t received;
if (socket.receive(in, sizeof(in), received) != sf::Socket::Status::Done)
return;
std::cout << "Message received from the server: " << std::quoted(in) << std::endl;
// Send an answer to the server
const char out[] = "Hi, I'm a client";
if (socket.send(out, sizeof(out)) != sf::Socket::Status::Done)
return;
std::cout << "Message sent to the server: " << std::quoted(out) << std::endl;
}