fix: udp component - Githubissues

#include <iostream>
#include <string>
#include <thread>
#include <mutex>
#include <vector>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <unistd.h>

std::vector<std::pair<int, struct sockaddr_in>> clients;
std::mutex clients_mutex;

void handle_client(int client_socket, struct sockaddr_in client_addr)
{
    char buffer[1024];
    ssize_t bytes_received;
    while ((bytes_received = recv(client_socket, buffer, sizeof(buffer), 0)) > 0)
    {
        std::string message(buffer, bytes_received);
        std::cout << "Received message from client: " << message << std::endl;

        // Send message back to client
        send(client_socket, message.c_str(), message.length(), 0);
    }

    close(client_socket);

    // Remove client from clients list
    std::unique_lock<std::mutex> lock(clients_mutex);
    for (auto it = clients.begin(); it != clients.end(); ++it)
    {
        if (it->first == client_socket)
        {
            clients.erase(it);
            break;
        }
    }
}

int main()
{
    int server_socket = socket(AF_INET, SOCK_DGRAM, 0);
    if (server_socket == -1)
    {
        std::cerr << "Failed to create socket" << std::endl;
        return 1;
    }

    struct sockaddr_in server_addr;
    server_addr.sin_family = AF_INET;
    server_addr.sin_port = htons(54000);
    server_addr.sin_addr.s_addr = htonl(INADDR_ANY);

    if (bind(server_socket, (struct sockaddr *)&server_addr, sizeof(server_addr)) == -1)
    {
        std::cerr << "Failed to bind socket" << std::endl;
        return 1;
    }

    std::cout << "Server listening on port 54000" << std::endl;

    while (true)
    {
        char buffer[1024];
        struct sockaddr_in client_addr;
        socklen_t client_addr_len = sizeof(client_addr);
        ssize_t bytes_received = recvfrom(server_socket, buffer, sizeof(buffer), 0, (struct sockaddr *)&client_addr, &client_addr_len);

        if (bytes_received > 0)
        {
            std::string message(buffer, bytes_received);
            std::cout << "Received message from client: " << message << std::endl;

            // Add client to clients list
            std::unique_lock<std::mutex> lock(clients_mutex);
            clients.push_back(std::make_pair(socket(AF_INET, SOCK_DGRAM, 0), client_addr));

            // Start thread to handle client
            std::thread handle_client_thread(handle_client, clients.back().first, clients.back().second);
            handle_client_thread.detach();
        }
    }

    close(server_socket);

    return 0;
}

#include <iostream>
#include <string>
#include <thread>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <unistd.h>

int main()
{
    int client_socket = socket(AF_INET, SOCK_DGRAM, 0);
    if (client_socket == -1)
    {
        std::cerr << "Failed to create socket" << std::endl;
        return 1;
    }

    struct sockaddr_in server_addr;
    server_addr.sin_family = AF_INET;
    server_addr.sin_port = htons(54000);
    server_addr.sin_addr.s_addr = inet_addr("127.0.0.1");

    std::string message;
    while (true)
    {
        std::cout << "Enter a message to send to the server: ";
        std::getline(std::cin, message);

        if (sendto(client_socket, message.c_str(), message.length(), 0, (struct sockaddr *)&server_addr, sizeof(server_addr)) == -1)
        {
            std::cerr << "Failed to send message" << std::endl;
            continue;
        }

        char buffer[1024];
        socklen_t server_addr_len = sizeof(server_addr);
        ssize_t bytes_received = recvfrom(client_socket, buffer, sizeof(buffer), 0, (struct sockaddr *)&server_addr, &server_addr_len);

        if (bytes_received > 0)
        {
            std::string response(buffer, bytes_received);
            std::cout << "Received response from server: " << response << std::endl;
        }
    }

    close(client_socket);

    return 0;
}

mfavant / tubekit

fix: udp component #33