public override bool Close()
{
if (!base.Close())
{
return(false);
}
_edge.Close();
return(true);
}
protected void RequestClose(Edge e)
{
EventHandler eh = EdgeCloseRequestEvent;
if (eh == null)
{
//We have to close the edge:
e.Close();
}
else
{
try {
eh(this, new EdgeCloseRequestArgs(e));
}
catch (Exception x) {
Console.Error.WriteLine("ERROR: closing: {0} -- {1}", e, x);
e.Close();
}
}
}
public void CreationCallback(bool success, Edge e, Exception x)
{
if (!success && _edge != null)
{
_edge.Close();
}
if (System.Threading.Interlocked.Exchange(ref _called, 1) == 1)
{
return;
}
ExternalECB(success, e, x);
}
public void HandleEC(bool succ, Edge e, Exception x)
{
if (!succ)
{
ECB(false, null, x);
return;
}
else if (_root)
{
Interlocked.Increment(ref _pel._count);
e.CloseEvent += _pel.CloseHandler;
ECB(succ, e, x);
return;
}
/*
* Got the underlying Edge, now do the path protocol
*/
Channel results = new Channel(1);
results.CloseEvent += delegate(object q, EventArgs args) {
try {
RpcResult res = (RpcResult)results.Dequeue();
object o = res.Result;
if (o is Exception)
{
throw (o as Exception);
}
} catch (Exception cx) {
e.Close();
ECB(false, null, cx);
return;
}
//If we get here, everything looks good:
PathEdge pe = new PathEdge(_pel._pem, e, LocalPath, RemotePath);
//Start sending e's packets into pe
pe.Subscribe();
pe.CloseEvent += _pel.CloseHandler;
Interlocked.Increment(ref _pel._count);
ECB(true, pe, null);
};
//Make sure we hear the packets on this edge:
e.Subscribe(_pel._pem, null);
//Now make the rpc call:
_pel._pem.Rpc.Invoke(e, results, "sys:pathing.create", LocalPath, RemotePath);
}
/** Watch this incoming Edge
*/
protected void HandleEdge(object newedge, System.EventArgs args)
{
Edge e = (Edge)newedge;
try {
e.CloseEvent += this.HandleEdgeClose;
e.Subscribe(this, null);
lock ( _sync ) {
_edges.Add(e);
}
}
catch (Exception x) {
//Didn't work out, make sure the edges is closed
ProtocolLog.WriteIf(ProtocolLog.Pathing,
String.Format("Closing ({0}) due to: {1}", e, x));
e.Close();
}
}
public void HandleEC(bool succ, Edge e, Exception x) {
if(!succ) {
ECB(false, null, x);
return;
} else if(_root) {
Interlocked.Increment(ref _pel._count);
e.CloseEvent += _pel.CloseHandler;
ECB(succ, e, x);
return;
}
/*
* Got the underlying Edge, now do the path protocol
*/
Channel results = new Channel(1);
results.CloseEvent += delegate(object q, EventArgs args) {
try {
RpcResult res = (RpcResult)results.Dequeue();
object o = res.Result;
if(o is Exception) {
throw (o as Exception);
}
} catch(Exception cx) {
e.Close();
ECB(false, null, cx);
return;
}
//If we get here, everything looks good:
PathEdge pe = new PathEdge(_pel._pem, e, LocalPath, RemotePath);
//Start sending e's packets into pe
pe.Subscribe();
pe.CloseEvent += _pel.CloseHandler;
Interlocked.Increment(ref _pel._count);
ECB(true, pe, null);
};
//Make sure we hear the packets on this edge:
e.Subscribe(_pel._pem, null);
//Now make the rpc call:
_pel._pem.Rpc.Invoke(e, results, "sys:pathing.create", LocalPath, RemotePath );
}
public void Start()
{
ToClose.Close();
}
public override bool Close()
{
_e.Close();
return(base.Close());
}
/** Handle incoming data on an Edge
*/
public void HandleData(MemBlock data, ISender retpath, object state)
{
MemBlock rest_of_data;
PType p;
if (state == null)
{
try {
p = PType.Parse(data, out rest_of_data);
} catch (ParseException) {
ProtocolLog.WriteIf(ProtocolLog.Pathing, "Invalid PType from: " + data);
return;
}
p = PType.Parse(data, out rest_of_data);
}
else
{
//a demux has already happened:
p = (PType)state;
rest_of_data = data;
}
if (PType.Protocol.Pathing.Equals(p))
{
/*
* We use a special PType to denote this transaction so
* we don't confuse it with other RepRep communication
*/
_rrm.HandleData(rest_of_data, retpath, null);
}
else if (PType.Protocol.Rpc.Equals(p))
{
/*
* Send this to the RpcHandler
*/
Rpc.HandleData(rest_of_data, retpath, null);
}
else
{
/*
* This is some other data
* It is either:
* 1) Time to announce an already created edge.
* 2) Assume this is a "default path" edge creation, to be backwards
* compatible
*/
Edge e = null;
PathEdge pe = null;
try {
e = (Edge)retpath;
PathEdgeListener pel = null;
lock ( _sync ) {
if (_unannounced.TryGetValue(e, out pe))
{
//
_unannounced.Remove(e);
pel = _pel_map[pe.LocalPath];
}
}
if (pe == null)
{
if (!_pel_map.ContainsKey(Root))
{
ProtocolLog.WriteIf(ProtocolLog.Pathing, "No root, can't create edge");
if (e != null)
{
e.Close();
}
return;
}
/*
* This must be a "default path" incoming connection
*/
pel = _pel_map[Root];
pe = new PathEdge(this, e, Root, Root);
}
pel.SendPathEdgeEvent(pe);
pe.Subscribe();
pe.ReceivedPacketEvent(data);
}
catch (Exception x) {
if (pe != null)
{
//This closes both edges:
pe.Close();
}
else if (e != null)
{
ProtocolLog.WriteIf(ProtocolLog.Pathing,
String.Format("Closing ({0}) due to: {1}", e, x));
e.Close();
}
}
}
}
