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//
// SocketNotifier.cpp
//
// $Id: //poco/1.4/Net/src/SocketNotifier.cpp#1 $
//
// Library: Net
// Package: Reactor
// Module: SocketNotifier
//
// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// 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 "Poco/Net/SocketNotifier.h"
#include "Poco/Net/SocketReactor.h"
#include "Poco/Net/SocketNotification.h"


namespace Poco {
namespace Net {


SocketNotifier::SocketNotifier(const Socket& socket):
_socket(socket)
{
}


SocketNotifier::~SocketNotifier()
{
}


void SocketNotifier::addObserver(SocketReactor* pReactor, const Poco::AbstractObserver& observer)
{
_nc.addObserver(observer);
if (observer.accepts(pReactor->_pReadableNotification))
_events.insert(pReactor->_pReadableNotification.get());
else if (observer.accepts(pReactor->_pWritableNotification))
_events.insert(pReactor->_pWritableNotification.get());
else if (observer.accepts(pReactor->_pErrorNotification))
_events.insert(pReactor->_pErrorNotification.get());
else if (observer.accepts(pReactor->_pTimeoutNotification))
_events.insert(pReactor->_pTimeoutNotification.get());
}


void SocketNotifier::removeObserver(SocketReactor* pReactor, const Poco::AbstractObserver& observer)
{
_nc.removeObserver(observer);
EventSet::iterator it = _events.end();
if (observer.accepts(pReactor->_pReadableNotification))
it = _events.find(pReactor->_pReadableNotification.get());
else if (observer.accepts(pReactor->_pWritableNotification))
it = _events.find(pReactor->_pWritableNotification.get());
else if (observer.accepts(pReactor->_pErrorNotification))
it = _events.find(pReactor->_pErrorNotification.get());
else if (observer.accepts(pReactor->_pTimeoutNotification))
it = _events.find(pReactor->_pTimeoutNotification.get());
if (it != _events.end())
_events.erase(it);
}


namespace
{
static Socket nullSocket;
}


void SocketNotifier::dispatch(SocketNotification* pNotification)
{
pNotification->setSocket(_socket);
pNotification->duplicate();
try
{
_nc.postNotification(pNotification);
}
catch (...)
{
pNotification->setSocket(nullSocket);
throw;
}
pNotification->setSocket(nullSocket);
}


} } // namespace Poco::Net
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