void Node::_connectMulticast( NodePtr node )
{
lunchbox::ScopedMutex<> mutex( _impl->outMulticast );
if( node->_impl->outMulticast.data.isValid( ))
// multicast already connected by previous _cmdID
return;
// Search if the connected node is in the same multicast group as we are
const ConnectionDescriptions& descriptions = getConnectionDescriptions();
for( ConnectionDescriptionsCIter i = descriptions.begin();
i != descriptions.end(); ++i )
{
ConnectionDescriptionPtr description = *i;
if( description->type < CONNECTIONTYPE_MULTICAST )
continue;
const ConnectionDescriptions& fromDescs =
node->getConnectionDescriptions();
for( ConnectionDescriptionsCIter j = fromDescs.begin();
j != fromDescs.end(); ++j )
{
ConnectionDescriptionPtr fromDescription = *j;
if( !description->isSameMulticastGroup( fromDescription ))
continue;
LBASSERT( !node->_impl->outMulticast.data );
LBASSERT( node->_impl->multicasts.empty( ));
if( _impl->outMulticast->isValid() &&
_impl->outMulticast.data->getDescription() == description )
{
node->_impl->outMulticast.data = _impl->outMulticast.data;
LBINFO << "Using " << description << " as multicast group for "
<< node->getNodeID() << std::endl;
}
// find unused multicast connection to node
else for( MCDatas::const_iterator k = _impl->multicasts.begin();
k != _impl->multicasts.end(); ++k )
{
const MCData& data = *k;
ConstConnectionDescriptionPtr dataDesc =
data.connection->getDescription();
if( !description->isSameMulticastGroup( dataDesc ))
continue;
node->_impl->multicasts.push_back( data );
LBINFO << "Adding " << dataDesc << " as multicast group for "
<< node->getNodeID() << std::endl;
}
}
}
}
