udp_socket.h

#pragma once
 
#include <cstddef>
#include <cstdint>
#include <vector>
 
#include "platform/net/net_address.h"
 
namespace Vkm::Engine {

class UdpSocket {
    public:
        static constexpr size_t MAX_DATAGRAM = 1200;
 
    public:
        UdpSocket() = default;
        ~UdpSocket();
 
        UdpSocket(const UdpSocket& other) = delete;
        UdpSocket& operator=(const UdpSocket& other) = delete;
 
        UdpSocket(UdpSocket && other) = delete;
        UdpSocket& operator=(UdpSocket && other) = delete;
 
    public:
        [[nodiscard]] bool open(uint16_t port);

        void close();

        bool send(const NetAddress& to, const uint8_t* bytes, size_t size);

        [[nodiscard]] bool receive(std::vector<uint8_t>& out, NetAddress& from);

        NetAddress localAddress() const { return m_local; }
 
        bool isOpen() const { return m_handle != INVALID; }
 
    private:
        static constexpr intptr_t INVALID = -1;
 
    private:
        void noteOversized();
 
    private:
        intptr_t   m_handle = INVALID;
 
        bool       m_readFailed  = false;  
        bool       m_oversized   = false;  
        bool       m_writeFailed = false;  
        NetAddress m_local;
};
 
} // namespace Vkm::Engine