Sha256: 122b34217e021dadcc66ad7bdfb321c704c3420b40d4c6c86f58fbfd4edaf480
Contents?: true
Size: 1.92 KB
Versions: 16
Compression:
Stored size: 1.92 KB
Contents
//
// server.cpp
// ~~~~~~~~~~
//
// Copyright (c) 2003-2020 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include <ctime>
#include <iostream>
#include <string>
#include <boost/array.hpp>
#include <boost/bind/bind.hpp>
#include <boost/shared_ptr.hpp>
#include <asio.hpp>
using asio::ip::udp;
std::string make_daytime_string()
{
using namespace std; // For time_t, time and ctime;
time_t now = time(0);
return ctime(&now);
}
class udp_server
{
public:
udp_server(asio::io_context& io_context)
: socket_(io_context, udp::endpoint(udp::v4(), 13))
{
start_receive();
}
private:
void start_receive()
{
socket_.async_receive_from(
asio::buffer(recv_buffer_), remote_endpoint_,
boost::bind(&udp_server::handle_receive, this,
asio::placeholders::error,
asio::placeholders::bytes_transferred));
}
void handle_receive(const asio::error_code& error,
std::size_t /*bytes_transferred*/)
{
if (!error)
{
boost::shared_ptr<std::string> message(
new std::string(make_daytime_string()));
socket_.async_send_to(asio::buffer(*message), remote_endpoint_,
boost::bind(&udp_server::handle_send, this, message,
asio::placeholders::error,
asio::placeholders::bytes_transferred));
start_receive();
}
}
void handle_send(boost::shared_ptr<std::string> /*message*/,
const asio::error_code& /*error*/,
std::size_t /*bytes_transferred*/)
{
}
udp::socket socket_;
udp::endpoint remote_endpoint_;
boost::array<char, 1> recv_buffer_;
};
int main()
{
try
{
asio::io_context io_context;
udp_server server(io_context);
io_context.run();
}
catch (std::exception& e)
{
std::cerr << e.what() << std::endl;
}
return 0;
}
Version data entries
16 entries across 16 versions & 1 rubygems