| // |
| // server.cpp |
| // ~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2010 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/bind.hpp> |
| #include <boost/shared_ptr.hpp> |
| #include <boost/enable_shared_from_this.hpp> |
| #include <boost/asio.hpp> |
| |
| using boost::asio::ip::tcp; |
| |
| std::string make_daytime_string() |
| { |
| using namespace std; // For time_t, time and ctime; |
| time_t now = time(0); |
| return ctime(&now); |
| } |
| |
| class tcp_connection |
| : public boost::enable_shared_from_this<tcp_connection> |
| { |
| public: |
| typedef boost::shared_ptr<tcp_connection> pointer; |
| |
| static pointer create(boost::asio::io_service& io_service) |
| { |
| return pointer(new tcp_connection(io_service)); |
| } |
| |
| tcp::socket& socket() |
| { |
| return socket_; |
| } |
| |
| void start() |
| { |
| message_ = make_daytime_string(); |
| |
| boost::asio::async_write(socket_, boost::asio::buffer(message_), |
| boost::bind(&tcp_connection::handle_write, shared_from_this(), |
| boost::asio::placeholders::error, |
| boost::asio::placeholders::bytes_transferred)); |
| } |
| |
| private: |
| tcp_connection(boost::asio::io_service& io_service) |
| : socket_(io_service) |
| { |
| } |
| |
| void handle_write(const boost::system::error_code& /*error*/, |
| size_t /*bytes_transferred*/) |
| { |
| } |
| |
| tcp::socket socket_; |
| std::string message_; |
| }; |
| |
| class tcp_server |
| { |
| public: |
| tcp_server(boost::asio::io_service& io_service) |
| : acceptor_(io_service, tcp::endpoint(tcp::v4(), 13)) |
| { |
| start_accept(); |
| } |
| |
| private: |
| void start_accept() |
| { |
| tcp_connection::pointer new_connection = |
| tcp_connection::create(acceptor_.io_service()); |
| |
| acceptor_.async_accept(new_connection->socket(), |
| boost::bind(&tcp_server::handle_accept, this, new_connection, |
| boost::asio::placeholders::error)); |
| } |
| |
| void handle_accept(tcp_connection::pointer new_connection, |
| const boost::system::error_code& error) |
| { |
| if (!error) |
| { |
| new_connection->start(); |
| start_accept(); |
| } |
| } |
| |
| tcp::acceptor acceptor_; |
| }; |
| |
| int main() |
| { |
| try |
| { |
| boost::asio::io_service io_service; |
| tcp_server server(io_service); |
| io_service.run(); |
| } |
| catch (std::exception& e) |
| { |
| std::cerr << e.what() << std::endl; |
| } |
| |
| return 0; |
| } |