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2b5306585d
........ r43377 | chris_kohlhoff | 2008-02-23 09:43:54 +1100 (Sat, 23 Feb 2008) | 2 lines Use the correct vector of timer queues when dispatching timers. ........ r43437 | chris_kohlhoff | 2008-02-29 23:57:57 +1100 (Fri, 29 Feb 2008) | 2 lines Add missing tie(). ........ r43469 | chris_kohlhoff | 2008-03-04 00:21:05 +1100 (Tue, 04 Mar 2008) | 4 lines Disable use of CancelIo by default, due to the possibility of silent failure on some system configurations. Swallow error returned by CancelIoEx if there are no operations to be cancelled. ........ r43470 | chris_kohlhoff | 2008-03-04 00:27:06 +1100 (Tue, 04 Mar 2008) | 2 lines Add missing 'boost_' prefix to helper namespace. ........ r43471 | chris_kohlhoff | 2008-03-04 00:36:35 +1100 (Tue, 04 Mar 2008) | 2 lines Regenerate documentation. ........ r43472 | chris_kohlhoff | 2008-03-04 01:05:35 +1100 (Tue, 04 Mar 2008) | 1 line Update copyright notices. ........ r43473 | chris_kohlhoff | 2008-03-04 01:13:01 +1100 (Tue, 04 Mar 2008) | 2 lines Update copyright notices. ........ r43569 | chris_kohlhoff | 2008-03-13 00:25:49 +1100 (Thu, 13 Mar 2008) | 4 lines Revert to having the windows-bug workaround (short timeout on GetQueuedCompletionStatus) on all threads as there are still scenarios where threads can get stuck indefinitely. ........ [SVN r43571]
90 lines
2.0 KiB
C++
90 lines
2.0 KiB
C++
//
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// server.cpp
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// ~~~~~~~~~~
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//
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// Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#include <ctime>
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#include <iostream>
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#include <string>
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#include <boost/array.hpp>
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#include <boost/bind.hpp>
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#include <boost/shared_ptr.hpp>
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#include <boost/asio.hpp>
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using boost::asio::ip::udp;
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std::string make_daytime_string()
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{
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using namespace std; // For time_t, time and ctime;
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time_t now = time(0);
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return ctime(&now);
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}
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class udp_server
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{
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public:
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udp_server(boost::asio::io_service& io_service)
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: socket_(io_service, udp::endpoint(udp::v4(), 13))
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{
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start_receive();
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}
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private:
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void start_receive()
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{
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socket_.async_receive_from(
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boost::asio::buffer(recv_buffer_), remote_endpoint_,
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boost::bind(&udp_server::handle_receive, this,
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boost::asio::placeholders::error,
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boost::asio::placeholders::bytes_transferred));
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}
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void handle_receive(const boost::system::error_code& error,
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std::size_t /*bytes_transferred*/)
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{
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if (!error || error == boost::asio::error::message_size)
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{
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boost::shared_ptr<std::string> message(
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new std::string(make_daytime_string()));
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socket_.async_send_to(boost::asio::buffer(*message), remote_endpoint_,
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boost::bind(&udp_server::handle_send, this, message,
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boost::asio::placeholders::error,
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boost::asio::placeholders::bytes_transferred));
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start_receive();
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}
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}
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void handle_send(boost::shared_ptr<std::string> /*message*/,
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const boost::system::error_code& /*error*/,
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std::size_t /*bytes_transferred*/)
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{
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}
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udp::socket socket_;
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udp::endpoint remote_endpoint_;
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boost::array<char, 1> recv_buffer_;
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};
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int main()
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{
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try
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{
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boost::asio::io_service io_service;
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udp_server server(io_service);
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io_service.run();
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}
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catch (std::exception& e)
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{
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std::cerr << e.what() << std::endl;
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}
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return 0;
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}
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