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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]
100 lines
2.5 KiB
C++
100 lines
2.5 KiB
C++
//
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// sender.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 <iostream>
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#include <sstream>
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#include <string>
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#include <boost/asio.hpp>
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#include "boost/bind.hpp"
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#include "boost/date_time/posix_time/posix_time_types.hpp"
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const short multicast_port = 30001;
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const int max_message_count = 10;
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class sender
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{
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public:
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sender(boost::asio::io_service& io_service,
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const boost::asio::ip::address& multicast_address)
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: endpoint_(multicast_address, multicast_port),
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socket_(io_service, endpoint_.protocol()),
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timer_(io_service),
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message_count_(0)
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{
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std::ostringstream os;
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os << "Message " << message_count_++;
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message_ = os.str();
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socket_.async_send_to(
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boost::asio::buffer(message_), endpoint_,
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boost::bind(&sender::handle_send_to, this,
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boost::asio::placeholders::error));
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}
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void handle_send_to(const boost::system::error_code& error)
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{
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if (!error && message_count_ < max_message_count)
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{
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timer_.expires_from_now(boost::posix_time::seconds(1));
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timer_.async_wait(
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boost::bind(&sender::handle_timeout, this,
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boost::asio::placeholders::error));
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}
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}
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void handle_timeout(const boost::system::error_code& error)
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{
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if (!error)
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{
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std::ostringstream os;
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os << "Message " << message_count_++;
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message_ = os.str();
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socket_.async_send_to(
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boost::asio::buffer(message_), endpoint_,
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boost::bind(&sender::handle_send_to, this,
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boost::asio::placeholders::error));
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}
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}
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private:
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boost::asio::ip::udp::endpoint endpoint_;
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boost::asio::ip::udp::socket socket_;
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boost::asio::deadline_timer timer_;
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int message_count_;
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std::string message_;
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};
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int main(int argc, char* argv[])
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{
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try
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{
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if (argc != 2)
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{
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std::cerr << "Usage: sender <multicast_address>\n";
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std::cerr << " For IPv4, try:\n";
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std::cerr << " sender 239.255.0.1\n";
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std::cerr << " For IPv6, try:\n";
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std::cerr << " sender ff31::8000:1234\n";
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return 1;
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}
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boost::asio::io_service io_service;
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sender s(io_service, boost::asio::ip::address::from_string(argv[1]));
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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 << "Exception: " << e.what() << "\n";
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}
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return 0;
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}
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