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//
// MulticastSocketSender.cpp
//
// Created by Setsu on Feb 26, 2011.
// Copyright 2011 RoundSquare Inc. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
//----------------------------------------
// include
//----------------------------------------
#include <Poco/Util/ServerApplication.h>
#include <Poco/Task.h>
#include <Poco/TaskManager.h>
#include <Poco/Net/TCPServerConnection.h>
#include <Poco/Net/TCPServerConnectionFactory.h>
#include <Poco/Net/MulticastSocket.h>
#include <Poco/NumberFormatter.h>
#include <Poco/Net/NetworkInterface.h>
#include <Poco/Net/SocketAddress.h>
#include <Poco/Format.h>
#include <Poco/NumberParser.h>
#include <string>
//----------------------------------------
// const
//----------------------------------------
const long kWaitMSec(500);
//----------------------------------------
// SenderTask
//----------------------------------------
class SenderTask: public Poco::Task
{
public:
SenderTask(const std::vector<std::string>& args) : // args[0]: MulticastAddress, args[1]: MulticastPort, args[2]: WaitingPort
Poco::Task ("SenderTask")
, m_family (Poco::Net::IPAddress(args[0]).family())
, m_port (Poco::NumberParser::parseUnsigned(args[1]))
, m_waitingPort (Poco::NumberParser::parseUnsigned(args[2]))
, m_multicastSocket (Poco::Net::MulticastSocket(m_family))
, m_pMulticastSocketAddress (NULL)
{
}
~SenderTask()
{
if(NULL != m_pMulticastSocketAddress)
{
delete m_pMulticastSocketAddress;
}
}
void runTask()
{
Poco::Logger& logger = Poco::Util::Application::instance().logger();
std::string hostAddress;
Poco::Net::NetworkInterface::NetworkInterfaceList list = Poco::Net::NetworkInterface::list();
if(!list.empty())
{
for(Poco::Net::NetworkInterface::NetworkInterfaceList::const_iterator itr=list.begin(); itr!=list.end(); ++itr)
{
if( !itr->address().isLoopback()
&& (m_family == itr->address().family())
#if !defined(POCO_OS_FAMILY_WINDOWS)
&& ('e' == itr->name()[0])
#endif
)
{
hostAddress += itr->address().toString();
if(Poco::Net::IPAddress::IPv6 == itr->address().family())
{
hostAddress += "%";
hostAddress += itr->name();
}
logger.information(Poco::format(" SenderTask: %s:%hu", hostAddress, m_port));
m_pMulticastSocketAddress = new Poco::Net::SocketAddress(hostAddress, m_port);
break;
}
}
}
if(NULL != m_pMulticastSocketAddress)
{
while(!isCancelled())
{
m_multicastMessage = Poco::format( "SenderTask?ipaddr=%s&port=%hu",
hostAddress,
m_waitingPort);
std::size_t n = m_multicastSocket.sendTo( m_multicastMessage.c_str(),
static_cast<int>(m_multicastMessage.length()),
*m_pMulticastSocketAddress );
if(n != m_multicastMessage.length())
{
logger.information(" SenderTask: send error");
}
sleep(kWaitMSec);
}
}
}
private:
Poco::Net::IPAddress::Family m_family;
Poco::UInt16 m_port;
Poco::UInt16 m_waitingPort;
Poco::Net::MulticastSocket m_multicastSocket;
Poco::Net::SocketAddress* m_pMulticastSocketAddress;
std::string m_multicastMessage;
};
//----------------------------------------
// MulticastSocketSender
//----------------------------------------
class MulticastSocketSender: public Poco::Util::ServerApplication
{
public:
MulticastSocketSender()
{
}
protected:
void initialize(Application& self)
{
loadConfiguration(); // load default configuration files, if present
Poco::Util::ServerApplication::initialize(self);
logger().information(" - MulticastSocketSender starting up");
}
void uninitialize()
{
logger().information(" - MulticastSocketSender shutting down");
Poco::Util::ServerApplication::uninitialize();
}
int main(const std::vector<std::string>& args)
{
Poco::TaskManager tm;
tm.start(new SenderTask(args));
waitForTerminationRequest();
tm.cancelAll();
tm.joinAll();
return Application::EXIT_OK;
}
};
//----------------------------------------
// entry point
//----------------------------------------
POCO_SERVER_MAIN(MulticastSocketSender) |
