Ticket #13462: UdpMulticastSender_1_66.cpp

#define _CRT_SECURE_NO_WARNINGS
#include <ctime>
#include <iostream>
#include <string>
#include <boost/array.hpp>
#include <boost/bind.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/asio.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/thread.hpp>
using boost::asio::ip::udp;
using std::cout;
using std::cin;
using std::endl;

class sender
{
private:
        boost::asio::ip::udp::endpoint endpoint_;
        boost::asio::ip::udp::socket socket_;
        boost::asio::steady_timer timer_;
        int message_count_;
        std::string message_;
        short multicast_port = 13;
        int max_message_count = 10;

public:
        sender(boost::asio::io_context& io_context, const boost::asio::ip::address& multicast_address)
                : endpoint_(multicast_address, multicast_port),
                socket_(io_context, endpoint_.protocol()),
                timer_(io_context),
                message_count_(0)
        {
                message_ = "abcd";
                send_periodic();
        }

private:
        void send_periodic()
        {
                static int i = 0;

                std::ostringstream os;
                os << "Message " << message_count_++;

                socket_.async_send_to(boost::asio::buffer(message_), endpoint_, [this](boost::system::error_code ec, std::size_t /*length*/)
                {
                        cout << i << endl;      // show count
                        ++i;
                });

                timer_.expires_after(std::chrono::seconds(1));
                timer_.async_wait([this](boost::system::error_code ec)
                {
                        send_periodic();
                });
        }
};

int main(int argc, char* argv[])
{
        try
        {
                boost::asio::io_context io_context;
                sender s(io_context, boost::asio::ip::make_address("127.0.0.1"));
                io_context.run();
        }
        catch (std::exception& e)
        {
                std::cerr << "Exception: " << e.what() << "\n";
        }

        return 0;
}