/**
* Implements the EdgeListener function to
* create edges of this type.
*/
public override void CreateEdgeTo(TransportAddress ta, EdgeCreationCallback ecb)
{
Edge e = null;
Exception ex = null;
if (!IsStarted)
{
ex = new EdgeException("UdpEdgeListener is not started");
}
else if (ta.TransportAddressType != this.TAType)
{
ex = new EdgeException(ta.TransportAddressType.ToString()
+ " is not my type: " + this.TAType.ToString());
}
else if (_ta_auth.Authorize(ta) == TAAuthorizer.Decision.Deny)
{
ex = new EdgeException(ta.ToString() + " is not authorized");
}
else
{
IPAddress first_ip = ((IPTransportAddress)ta).GetIPAddress();
IPEndPoint end = new IPEndPoint(first_ip, ((IPTransportAddress)ta).Port);
/* We have to keep our mapping of end point to edges up to date */
lock ( _id_ht ) {
//Get a random ID for this edge:
int id;
do
{
id = _rand.Next();
//Make sure we don't have negative ids
if (id < 0)
{
id = ~id;
}
} while(_id_ht.Contains(id) || id == 0);
e = new UdpEdge(this, false, end, _local_ep, id, 0);
_id_ht[id] = e;
}
NatDataPoint dp = new NewEdgePoint(DateTime.UtcNow, e);
Interlocked.Exchange <NatHistory>(ref _nat_hist, _nat_hist + dp);
Interlocked.Exchange <IEnumerable>(ref _nat_tas, new NatTAs(_tas, _nat_hist));
try {
/* Tell me when you close so I can clean up the table */
e.CloseEvent += this.CloseHandler;
} catch (Exception x) {
e = null;
ex = x;
}
}
if (e != null)
{
ecb(true, e, null);
}
else
{
ecb(false, null, ex);
}
}
/**
* Implements the EdgeListener function to
* create edges of this type.
*/
public override void CreateEdgeTo(TransportAddress ta, EdgeCreationCallback ecb)
{
Edge e = null;
Exception ex = null;
if( !IsStarted ) {
ex = new EdgeException("UdpEdgeListener is not started");
} else if( ta.TransportAddressType != this.TAType ) {
ex = new EdgeException(ta.TransportAddressType.ToString()
+ " is not my type: " + this.TAType.ToString() );
} else if( _ta_auth.Authorize(ta) == TAAuthorizer.Decision.Deny ) {
ex = new EdgeException( ta.ToString() + " is not authorized");
} else {
IPAddress first_ip = ((IPTransportAddress) ta).GetIPAddress();
IPEndPoint end = new IPEndPoint(first_ip, ((IPTransportAddress) ta).Port);
/* We have to keep our mapping of end point to edges up to date */
lock( _id_ht ) {
//Get a random ID for this edge:
int id;
do {
id = _rand.Next();
//Make sure we don't have negative ids
if( id < 0 ) { id = ~id; }
} while( _id_ht.Contains(id) || id == 0 );
e = new UdpEdge(this, false, end, _local_ep, id, 0);
_id_ht[id] = e;
}
NatDataPoint dp = new NewEdgePoint(DateTime.UtcNow, e);
Interlocked.Exchange<NatHistory>(ref _nat_hist, _nat_hist + dp);
Interlocked.Exchange<IEnumerable>(ref _nat_tas, new NatTAs( _tas, _nat_hist ));
try {
/* Tell me when you close so I can clean up the table */
e.CloseEvent += this.CloseHandler;
} catch (Exception x) {
e = null;
ex = x;
}
}
if(e != null) {
ecb(true, e, null);
} else {
ecb(false, null, ex);
}
}
