udp_sender.h

#pragma once
 
#include <boost/asio.hpp>
#include <boost/bind.hpp>
#include <string>
 
class UdpSender
{
   public:
    UdpSender(boost::asio::io_service& io_service, const std::string& ip_address,
              unsigned short port, const std::string& interface, bool multicast);
 
    ~UdpSender();
 
    std::string getInterface() const;
 
    std::string getIpAddress() const;
 
    void sendString(const std::string& message);
 
    void sendStringAsync(const std::string& message);
 
   private:
    void setupMulticast(const boost::asio::ip::address& ip_address,
                        const std::string& interface);
 
    // A UDP socket to send data over
    boost::asio::ip::udp::socket socket_;
 
    // The endpoint for the receiver
    boost::asio::ip::udp::endpoint receiver_endpoint;
 
    // The interface to send data on
    std::string interface_;
 
    // The IP address to send data to (IPv4 in dotted decimal or IPv6 in hex string)
    std::string ip_address_;
};