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/*
* Copyright (c) 2010 Remko Tronçon
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#include "Swiften/StreamStack/StreamStack.h"
#include <boost/bind.hpp>
#include "Swiften/Base/foreach.h"
#include "Swiften/StreamStack/XMPPLayer.h"
#include "Swiften/StreamStack/LowLayer.h"
#include "Swiften/StreamStack/StreamLayer.h"
namespace Swift {
StreamStack::StreamStack(boost::shared_ptr<XMPPLayer> xmppLayer, boost::shared_ptr<LowLayer> physicalLayer) : xmppLayer_(xmppLayer), physicalLayer_(physicalLayer) {
xmppReadSlotConnection_ = physicalLayer_->onDataRead.connect(boost::bind(&XMPPLayer::parseData, xmppLayer_, _1));
xmppWriteSignalConnection_ = xmppLayer_->onWriteData.connect(boost::bind(&LowLayer::writeData, physicalLayer_, _1));
}
StreamStack::~StreamStack() {
// Disconnect the write signal connections to break cyclic signal
// dependencies. The read signal connections have
// to remain, since these can be reached from the main event loop.
xmppWriteSignalConnection_.disconnect();
foreach(const boost::bsignals::connection& connection, writeSignalConnections_) {
connection.disconnect();
}
}
void StreamStack::addLayer(boost::shared_ptr<StreamLayer> newLayer) {
xmppReadSlotConnection_.disconnect();
xmppWriteSignalConnection_.disconnect();
boost::shared_ptr<LowLayer> lowLayer = (layers_.empty() ? physicalLayer_ : *layers_.rbegin());
lowLayer->onDataRead.connect(boost::bind(&HighLayer::handleDataRead, newLayer, _1), boost::bsignals::at_front);
writeSignalConnections_.push_back(newLayer->onWriteData.connect(boost::bind(&LowLayer::writeData, lowLayer, _1), boost::bsignals::at_front));
xmppWriteSignalConnection_ = xmppLayer_->onWriteData.connect(boost::bind(&LowLayer::writeData, newLayer, _1), boost::bsignals::at_front);
xmppReadSlotConnection_ = newLayer->onDataRead.connect(boost::bind(&XMPPLayer::parseData, xmppLayer_, _1), boost::bsignals::at_front);
layers_.push_back(newLayer);
}
}
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Swift