public ConnectionState GetReplacement(ConnectionTableState cts,
Connection c, ConnectionState c1,
ConnectionState c2) {
if( (c1.Edge is RelayEdge) && (c2.Edge is RelayEdge) ) {
return GetIdx(c1) <= GetIdx(c2) ? c1 : c2;
}
return _fallback.GetReplacement(cts,c,c1,c2);
}
public ConnectionEventArgs(Connection c, ConnectionState cs, int idx,
ConnectionTableState old, ConnectionTableState news) {
Connection = c;
ConnectionState = cs;
Index = idx;
OldState = old;
NewState = news;
}
/**
* This method is called when there is a change in a Connection's status
*/
protected void StatusChangedHandler(Connection c,
Brunet.Collections.Pair<ConnectionState, ConnectionState> oldnew) {
//Console.Error.WriteLine("Status Changed:\n{0}\n{1}\n{2}\n{3}",c, c.Status, nltarget, nrtarget);
ConnectionList structs = _node.ConnectionTable.GetConnections(ConnectionType.Structured);
ConnectToNearer(structs, c.Address,
oldnew.Second.StatusMessage.Neighbors);
}
/// <summary>Called when a connection has been lost.</summary> abstract protected void LostConnection(Connection con);
public GreedyRouting(AHAddress local, ConnectionList structured_cons) {
//Fake connection to ourselves:
_local_con = new Connection(null, local, "structured.self", null, null);
int local_idx;
_structs = ConnectionList.InsertInto(structured_cons, _local_con, out local_idx);
_NO_ONE = new Pair<Connection, bool>(null, false);
_LOCAL = new Pair<Connection, bool>(null, true);
}
/**
* Get a StatusMessage for this node
*/
public IDictionary GetStatus(IDictionary status_message, ISender edge) {
//we just got s status request
if( 1 == _disconnecting ) {
throw new AdrException((int)ErrorMessage.ErrorCode.Disconnecting, "disconnecting");
}
StatusMessage sm = new StatusMessage(status_message);
Edge from = GetEdge(edge);
if(ProtocolLog.LinkDebug.Enabled) {
ProtocolLog.Write(ProtocolLog.LinkDebug, String.Format(
"{0} -start- sys:link.GetStatus({1},{2})", _node.Address, sm, edge));
}
CphState cphstate = null;
if(from != null) {
cphstate = _edge_to_cphstate[from] as CphState;
}
/**
* StatusMessage objects are used to verify the completion
* of the Link protocol. If we receive a StatusMessage request
* after we send a LinkMessage response, we know the other
* Node got our LinkMessage response, and the connection
* is active
*/
StatusMessage response = null;
ConnectionTable tab = _node.ConnectionTable;
if (cphstate != null) {
try {
LinkMessage lm_to_add = cphstate.LM;
//This is part of connection process:
response = _node.GetStatus( sm.NeighborType, lm_to_add.Local.Address );
Connection con = new Connection(from,
lm_to_add.Local.Address,
lm_to_add.ConTypeString,
sm,
lm_to_add);
tab.Add(con);
}
finally {
from.CloseEvent -= this.CloseHandler;
CloseHandler(from, null);
}
} else {
//This is just a "regular" status request
//update our table:
Address fadd = null;
Connection c = tab.GetConnection(from);
if( c != null ) {
fadd = c.Address;
tab.UpdateStatus(c, sm);
}
response = _node.GetStatus( sm.NeighborType, fadd );
}
if(ProtocolLog.LinkDebug.Enabled) {
ProtocolLog.Write(ProtocolLog.LinkDebug, String.Format(
"{0} -end- sys:link.GetStatus()->{1}", _node.Address,response));
}
return response.ToDictionary();
}
protected void ConStateChange(Connection con,
Pair<Connections.ConnectionState, Connections.ConnectionState> cs)
{
if(cs.First.Edge.Equals(cs.Second.Edge)) {
return;
}
if(!_ondemand.ConnectionDesired(con.Address)) {
return;
}
SecurityAssociation sa;
GetSecureSender(con, out sa);
}
override protected void LostConnection(Connection con)
{
if(!ConnectionDesired(con.Address)) {
if(con.ConType.Equals(Type)) {
}
return;
}
if(IsActive) {
if(ProtocolLog.PolicyBasedCO.Enabled) {
ProtocolLog.Write(ProtocolLog.PolicyBasedCO, String.Format(
"Disconnection: {0} at {1}", con, DateTime.UtcNow));
}
DelayedConnectTo(con.Address, true);
}
}
public ConSenderWrapper(Connection con)
{
Con = con;
}
public UpdateNeighborAction(StructuredNode n,
string contype,
Connection neigh) {
Node = n;
ConType = contype;
Neighbor = neigh;
}
virtual protected void ValidConnection(Connection con)
{
AddConnection(con.Address, new ConSenderWrapper(con));
}
virtual protected void ValidDisconnection(Connection con)
{
RemoveConnection(con.Address);
}
override protected void ObtainedConnection(Connection con)
{
if(ConnectionDesired(con.Address)) {
if(ProtocolLog.PolicyBasedCO.Enabled) {
ProtocolLog.Write(ProtocolLog.PolicyBasedCO, String.Format(
"Connection: {0} at {1}", con, DateTime.UtcNow));
}
} else if(con.ConType.Equals(Type)) {
DelayedRemove(con.Address, "Undesired");
}
}
public ConnectionEventArgs(Connection c, int idx, ConnectionList cl, int view) {
Connection = c;
Index = idx;
CList = cl;
View = view;
}
override protected void ValidConnection(Connection con)
{
con.StateChangeEvent += ConStateChange;
SecurityAssociation sa;
GetSecureSender(con, out sa);
}
/// <summary>Called when a connection has been formed.</summary> abstract protected void ObtainedConnection(Connection con);
public void WrapperEdgeRegressionTest()
{
AHAddress addr = new AHAddress(new System.Security.Cryptography.RNGCryptoServiceProvider());
TransportAddress ta = TransportAddressFactory.CreateInstance("brunet.tcp://169.0.5.1:5000");
FakeEdge fe = new FakeEdge(ta, ta);
WrapperEdge we_fe = new WrapperEdge(fe);
Connection fcon = new Connection(we_fe, addr, "structured", null, null);
List<Connection> overlap = new List<Connection>();
overlap.Add(fcon);
RelayTransportAddress tta = new RelayTransportAddress(addr, overlap);
RelayEdge te1 = new RelayEdge(null, tta, tta, new SimpleForwarderSelector(), overlap);
WrapperEdge we_te1 = new WrapperEdge(te1);
Connection t1con = new Connection(we_te1, addr, "structured", null, null);
overlap = new List<Connection>();
overlap.Add(t1con);
RelayEdge te2 = new RelayEdge(null, tta, tta, new SimpleForwarderSelector(), overlap);
WrapperEdge we_te2 = new WrapperEdge(te2);
Connection t2con = new Connection(we_te2, addr, "structured", null, null);
overlap = new List<Connection>();
overlap.Add(t2con);
RelayEdge te3 = new RelayEdge(null, tta, tta, new SimpleForwarderSelector(), overlap);
WrapperEdge we_te3 = new WrapperEdge(te3);
Connection t3con = new Connection(we_te3, addr, "structured", null, null);
overlap = new List<Connection>();
overlap.Add(t3con);
RelayEdge te4 = new RelayEdge(null, tta, tta, new SimpleForwarderSelector(), overlap);
WrapperEdge we_te4 = new WrapperEdge(te4);
Connection t4con = new Connection(we_te4, addr, "structured", null, null);
overlap = new List<Connection>();
overlap.Add(t4con);
RelayEdge te5 = new RelayEdge(null, tta, tta, new SimpleForwarderSelector(), overlap);
WrapperEdge we_te5 = new WrapperEdge(te5);
Connection t5con = new Connection(we_te5, addr, "structured", null, null);
Assert.AreEqual(te5.ShouldClose(), false, "Shouldn't close yet...");
te1.DisconnectionHandler(fcon);
Assert.AreEqual(te5.ShouldClose(), true, "Should close...");
overlap.Add(t5con);
overlap.Add(t3con);
overlap.Add(t1con);
te2.UpdateNeighborIntersection(overlap);
Assert.AreEqual(te5.ShouldClose(), true, "Should close... 2");
}
/**
* When we're here, we have the status message
*/
protected void StatusCloseHandler(object q, EventArgs args) {
try {
Channel resq = (Channel)q;
//If we got no result
RpcResult res = (RpcResult)resq.Dequeue();
StatusMessage sm = new StatusMessage((IDictionary)res.Result);
if(_node.EdgeVerifyMethod != null) {
if(!_node.EdgeVerifyMethod(_node, _e, LinkMessageReply.Local.Address)) {
throw new Exception("Edge verification failed!");
}
}
Connection c = new Connection(_e, LinkMessageReply.Local.Address,
_contype, sm, LinkMessageReply);
_node.ConnectionTable.Add(c);
_con.Value = c;
Finish(Result.Success);
}
catch(InvalidOperationException) {
/*
* This is unexpected.
*/
string message = String.Format(
"No StatusMessage returned from open({1}) Edge: {0}",
_e, !_e.IsClosed);
if(ProtocolLog.LinkDebug.Enabled) {
ProtocolLog.Write(ProtocolLog.LinkDebug, message);
}
/*
* We got a link message from this guy, but not a status response,
* so let's try this TA again.
*/
Finish(Result.RetryThisTA);
}
catch(Exception x) {
/*
* Clearly we got some response from this edge, but something
* unexpected happened. Let's try it this edge again if we
* can
*/
if(ProtocolLog.LinkDebug.Enabled) {
ProtocolLog.Write(ProtocolLog.LinkDebug, String.Format(
"LPS.StatusResultHandler Exception: {0}", x));
}
Finish(Result.RetryThisTA);
}
}
/**
* Call the GetStatus method on the given connection
*/
protected void CallGetStatus(string type, Connection c) {
ConnectionTable tab = this.ConnectionTable;
if( c != null ) {
StatusMessage req = GetStatus(type, c.Address);
Channel stat_res = new Channel(1);
EventHandler handle_result = delegate(object q, EventArgs eargs) {
try {
RpcResult r = (RpcResult)stat_res.Dequeue();
StatusMessage sm = new StatusMessage( (IDictionary)r.Result );
tab.UpdateStatus(c, sm);
}
catch(Exception) {
//Looks like lc disappeared before we could update it
}
};
stat_res.CloseEvent += handle_result;
_rpc.Invoke(c.Edge, stat_res, "sys:link.GetStatus", req.ToDictionary() );
}
}
/// <summary>We don't want to send on disconnected edges. So we remove said
/// connections and edges!</summary>
public void DisconnectionHandler(Connection con)
{
bool close = false;
List<Connection> tunnels = null;
lock(_sync) {
tunnels = new List<Connection>(_tunnels.Count);
foreach(Connection ccon in _tunnels) {
if(con.Equals(ccon)){
continue;
}
tunnels.Add(ccon);
}
if(tunnels.Count == _tunnels.Count) {
return;
}
_tunnels = tunnels;
close = _tunnels.Count == 0;
}
if(close || ShouldClose()) {
Close();
}
//_tunnels is immutable and if we don't pass the latest _tunnels to _ias
//he will go into an inconsistent state.
_ias.Update(tunnels);
}
protected bool GetSecureSender(Connection con, out SecurityAssociation sa)
{
sa = _so.CreateSecurityAssociation(con.State.Edge);
bool ready = false;
lock(_address_to_sender) {
if(!_registered.ContainsKey(sa)) {
_registered[sa] = true;
sa.StateChangeEvent += SAStateChange;
}
if(sa.State == SecurityAssociation.States.Active ||
sa.State == SecurityAssociation.States.Updating)
{
Address addr = con.Address;
if(_address_to_sender.ContainsKey(addr)) {
SecurityAssociation to_fixup = _address_to_sender[addr] as SecurityAssociation;
if(to_fixup != null && to_fixup != sa) {
to_fixup.StateChangeEvent -= SAStateChange;
_registered.Remove(to_fixup);
}
}
AddConnection(con.Address, sa);
ready = true;
}
}
return ready;
}
/**
<summary>Begins a new transfer state to the neighbor connected via con.
</summary>
<param name="con">The connection to the neigbhor we will be transferring
data to.</param>
<param name="ts">The table server we're providing the transfer for. C#
does not allow sub-class objects to have access to their parent objects
member variables, so we pass it in like this.</param>
<remarks>
Step 1:
Get all the keys between me and my new neighbor.
Step 2:
Get all values for those keys, we copy so that we don't worry about
changes to the dht during this interaction. This is only a pointer
copy and since we let the OS deal with removing the contents of an
entry, we don't need to make copies of the actual entry.
Step 3:
Generate another list of keys of up to max parallel transfers and begin
transferring, that way we do not need to lock access to the entry
enumerator until non-constructor puts.
Step 4:
End constructor, results from puts, cause the next entry to be sent.
*/
public TransferState(Brunet.Connections.Connection con, TableServer ts) {
this._ts = ts;
this._con = con;
// Get all keys between me and my new neighbor
LinkedList<MemBlock> keys;
lock(_ts._sync) {
keys = _ts._data.GetKeysBetween((AHAddress) _ts._node.Address,
(AHAddress) _con.Address);
}
if(Dht.DhtLog.Enabled) {
ProtocolLog.Write(Dht.DhtLog, String.Format(
"Starting transfer from {0} to {1}",
_ts._node.Address, _con.Address));
}
int total_entries = 0;
/* Get all values for those keys, we copy so that we don't worry about
* changes to the dht during this interaction. This is only a pointer
* copy and since we let the OS deal with removing the contents of an
* entry, we don't need to make copies of the actual entry.
*/
foreach(MemBlock key in keys) {
Entry[] entries;
lock(_ts._sync) {
LinkedList<Entry> llentries = _ts._data.GetEntries(key);
if(llentries == null) {
continue;
}
entries = new Entry[llentries.Count];
total_entries += llentries.Count;
llentries.CopyTo(entries, 0);
}
key_entries.AddLast(entries);
}
if(Dht.DhtLog.Enabled) {
ProtocolLog.Write(Dht.DhtLog, String.Format(
"Total keys: {0}, total entries: {1}.",
key_entries.Count, total_entries));
}
_entry_enumerator = GetEntryEnumerator();
/* Here we generate another list of keys that we would like to
* this is done here, so that we can lock up the _entry_enumerator
* only during this stage and not during the RpcManager.Invoke
*/
LinkedList<Entry> local_entries = new LinkedList<Entry>();
for(int i = 0; i < MAX_PARALLEL_TRANSFERS && _entry_enumerator.MoveNext(); i++) {
local_entries.AddLast((Entry) _entry_enumerator.Current);
}
foreach(Entry ent in local_entries) {
Channel queue = new Channel();
queue.CloseAfterEnqueue();
queue.CloseEvent += this.NextTransfer;
int ttl = (int) (ent.EndTime - DateTime.UtcNow).TotalSeconds;
try {
_ts._rpc.Invoke(_con.Edge, queue, "dht.PutHandler", ent.Key, ent.Value, ttl, false);
}
catch {
if(_con.Edge.IsClosed) {
_interrupted = true;
Done();
break;
}
}
}
}
/**
* There are only four ways we can get here:
*
* 1) We got some exception in Start and never made the first request
* 2) There was some problem in LinkCloseHandler
* 3) We either got a response or had a problem in StatusCloseHandler
* 4) The Edge closed, and the CloseHandler was called.
*
* The only possibility for a race is between the CloseHandler and
* the others.
*
* When this state machine reaches an end point, it calls this method,
* which fires the FinishEvent
*/
protected void Finish(Result res) {
/*
* No matter what, we are done here:
*/
if(ProtocolLog.LinkDebug.Enabled) {
string message;
Exception x;
if (_x.TryGet(out x) ) {
message = String.Format(
"LPS: {0} finished: {2}, with exception: {1}",
_node.Address, x, res);
}
else {
message = String.Format("LPS: {0} finished: {1}",
_node.Address, res);
}
ProtocolLog.Write(ProtocolLog.LinkDebug, message);
}
int already_finished = Interlocked.Exchange(ref _is_finished, 1);
if(already_finished == 1) {
//We already got here.
//This is a barrier. Only one Finish call will make
//it past this point. Only two could happen in a race:
//Edge closing or some other failure/success.
return;
}
//We don't care about close event's anymore
_e.CloseEvent -= this.CloseHandler;
//Set the result:
_result = res;
try {
//Check to see if we need to close the edge
if( _con.IsSet == false ) {
/*
* We didn't get a complete connection,
* but we may have heard some response. If so
* close the edge gracefully.
*/
if (LinkMessageReply != null) {
//Let's be nice, send a Close message, but don't add this connection:
Connection tmp_c = new Connection(_e, LinkMessageReply.Local.Address,
_contype, null, LinkMessageReply);
tmp_c.Close(_node.Rpc, "From LPS, did not complete a connection.");
}
else {
/*
* We never heard from the other side, so we will assume that further
* packets will only waste bandwidth
*/
_e.Close();
}
if(ProtocolLog.LinkDebug.Enabled) {
ProtocolLog.Write(ProtocolLog.LinkDebug, String.Format(
"LPS: {0} got no connection", _node.Address));
}
}
else {
if(ProtocolLog.LinkDebug.Enabled) {
ProtocolLog.Write(ProtocolLog.LinkDebug, String.Format(
"LPS: {0} got connection: {1}", _node.Address, _con.Value));
}
}
//This could throw an exception, but make sure we unlock if it does.
FireFinished();
}
finally {
/**
* We have to make sure the lock is eventually released:
*/
this.Unlock();
}
}
override protected void ObtainedConnection(Connection con)
{
bool con_desired = ConnectionDesired(con.Address);
if(con_desired || con.ConType.Equals(Type)) {
if(ProtocolLog.PolicyBasedCO.Enabled) {
ProtocolLog.Write(ProtocolLog.PolicyBasedCO, String.Format(
"Connection: {0} at {1}, Desired: {2}",
con, DateTime.UtcNow, ConnectionDesired(con.Address)));
}
}
if(!con_desired && con.ConType.Equals(Type)) {
Set(con.Address);
}
}
///<summary>Creates an edge and a connection from node2 to node1 including
///the edge. Note: this is unidirectional, this must be called twice,
///swapping node1 with node2 for a connection to be complete.</summary>
protected void AddConnection(GraphNode node1, GraphNode node2, int delay)
{
Edge edge = new GraphEdge(delay);
Connection con = new Connection(edge, node2.Address, ConnectionType.Structured.ToString(), null, null);
node1.ConnectionTable.Add(con);
}
/**
* <summary>Begins a new transfer state to the neighbor connected via con.
* </summary>
* <param name="con">The connection to the neigbhor we will be transferring
* data to.</param>
* <param name="ts">The table server we're providing the transfer for. C#
* does not allow sub-class objects to have access to their parent objects
* member variables, so we pass it in like this.</param>
* <remarks>
* Step 1:
*
* Get all the keys between me and my new neighbor.
*
* Step 2:
*
* Get all values for those keys, we copy so that we don't worry about
* changes to the dht during this interaction. This is only a pointer
* copy and since we let the OS deal with removing the contents of an
* entry, we don't need to make copies of the actual entry.
*
* Step 3:
*
* Generate another list of keys of up to max parallel transfers and begin
* transferring, that way we do not need to lock access to the entry
* enumerator until non-constructor puts.
*
* Step 4:
*
* End constructor, results from puts, cause the next entry to be sent.
*/
public TransferState(Brunet.Connections.Connection con, TableServer ts)
{
this._ts = ts;
this._con = con;
// Get all keys between me and my new neighbor
LinkedList <MemBlock> keys;
lock (_ts._sync) {
keys = _ts._data.GetKeysBetween((AHAddress)_ts._node.Address,
(AHAddress)_con.Address);
}
if (Dht.DhtLog.Enabled)
{
ProtocolLog.Write(Dht.DhtLog, String.Format(
"Starting transfer from {0} to {1}",
_ts._node.Address, _con.Address));
}
int total_entries = 0;
/* Get all values for those keys, we copy so that we don't worry about
* changes to the dht during this interaction. This is only a pointer
* copy and since we let the OS deal with removing the contents of an
* entry, we don't need to make copies of the actual entry.
*/
foreach (MemBlock key in keys)
{
Entry[] entries;
lock (_ts._sync) {
LinkedList <Entry> llentries = _ts._data.GetEntries(key);
if (llentries == null)
{
continue;
}
entries = new Entry[llentries.Count];
total_entries += llentries.Count;
llentries.CopyTo(entries, 0);
}
key_entries.AddLast(entries);
}
if (Dht.DhtLog.Enabled)
{
ProtocolLog.Write(Dht.DhtLog, String.Format(
"Total keys: {0}, total entries: {1}.",
key_entries.Count, total_entries));
}
_entry_enumerator = GetEntryEnumerator();
/* Here we generate another list of keys that we would like to
* this is done here, so that we can lock up the _entry_enumerator
* only during this stage and not during the RpcManager.Invoke
*/
LinkedList <Entry> local_entries = new LinkedList <Entry>();
for (int i = 0; i < MAX_PARALLEL_TRANSFERS && _entry_enumerator.MoveNext(); i++)
{
local_entries.AddLast((Entry)_entry_enumerator.Current);
}
foreach (Entry ent in local_entries)
{
Channel queue = new Channel();
queue.CloseAfterEnqueue();
queue.CloseEvent += this.NextTransfer;
int ttl = (int)(ent.EndTime - DateTime.UtcNow).TotalSeconds;
try {
_ts._rpc.Invoke(_con.Edge, queue, "dht.PutHandler", ent.Key, ent.Value, ttl, false);
}
catch {
if (_con.Edge.IsClosed)
{
_interrupted = true;
Done();
break;
}
}
}
}
override protected void ValidConnection(Connection con)
{
SecurityAssociation sa;
GetSecureSender(con, out sa);
}
public AnnealingRouting(AHAddress local, ConnectionList structured_cons) {
//Fake connection to ourselves:
_local_con = new Connection(null, local, "structured.self", null, null);
int local_idx;
_structs = ConnectionList.InsertInto(structured_cons, _local_con, out local_idx);
}
override protected void ValidDisconnection(Connection con)
{
ISender sender;
if(!_address_to_sender.TryGetValue(con.Address, out sender)) {
return;
}
SecurityAssociation sa = sender as SecurityAssociation;
if(sa != null) {
sa.Close("Connection closed...");
}
}
public void Test()
{
Address addr_x = new AHAddress(new RNGCryptoServiceProvider());
byte[] addrbuff = Address.ConvertToAddressBuffer(addr_x.ToBigInteger() + (Address.Full / 2));
Address.SetClass(addrbuff, AHAddress._class);
Address addr_y = new AHAddress(addrbuff);
List<Connection> connections = new List<Connection>();
ConnectionTable ct_x = new ConnectionTable();
ConnectionTable ct_y = new ConnectionTable();
ConnectionTable ct_empty = new ConnectionTable();
NCService ncservice = new NCService();
Connection fast_con = null;
for(int i = 1; i <= 11; i++) {
addrbuff = Address.ConvertToAddressBuffer(addr_x.ToBigInteger() + (i * Address.Full / 16));
Address.SetClass(addrbuff, AHAddress._class);
Address addr = new AHAddress(addrbuff);
Connection con = null;
TransportAddress ta = TransportAddressFactory.CreateInstance("brunet.tcp://158.7.0.1:5000");
Edge fe = new FakeEdge(ta, ta, TransportAddress.TAType.Tcp);
if(i <= 10) {
con = new Connection(fe, addr, "structured", null, null);
ct_x.Add(con);
if(i % 2 == 0) {
ncservice.ProcessSample(DateTime.UtcNow, String.Empty, addr,
new Point(new double[] {0, 0}, 0), 0, i*10);
}
} else {
fast_con = new Connection(fe, addr, "structured", null, null);
ncservice.ProcessSample(DateTime.UtcNow, String.Empty, addr,
new Point(new double[] {0, 0}, 0), 0, 5);
}
if(i == 10) {
ct_y.Add(con);
}
connections.Add(con);
}
ITunnelOverlap sto = new SimpleTunnelOverlap();
ITunnelOverlap nto = new NCTunnelOverlap(ncservice);
ConnectionType con_type = ConnectionType.Structured;
List<Connection> pre_cons = new List<Connection>();
pre_cons.Add(connections[9]);
IDictionary id = nto.GetSyncMessage(pre_cons, addr_x, ct_x.GetConnections(con_type));
// We do have some pre-existing overlap
Assert.AreEqual(nto.EvaluateOverlap(ct_y.GetConnections(con_type), id)[0], connections[9], "NC: Have an overlap!");
Assert.AreEqual(sto.EvaluateOverlap(ct_y.GetConnections(con_type), id)[0], connections[9], "Simple: Have an overlap!");
// We have no overlap with an empty connection table
Assert.AreEqual(nto.EvaluateOverlap(ct_empty.GetConnections(con_type), id).Count, 0, "No overlap!");
Assert.AreEqual(sto.EvaluateOverlap(ct_empty.GetConnections(con_type), id).Count, 0, "No overlap!");
// latency[0] == -1
Assert.AreEqual(connections[1].Address.Equals(nto.EvaluatePotentialOverlap(id)), true,
"NC: EvaluatePotentialOverlap returns expected!");
Assert.AreEqual(ct_x.Contains(con_type, sto.EvaluatePotentialOverlap(id)), true,
"Simple: EvaluatePotentialOverlap returns valid!");
ct_y.Add(fast_con);
ct_x.Add(fast_con);
id = nto.GetSyncMessage(pre_cons, addr_x, ct_x.GetConnections(con_type));
Assert.AreEqual(fast_con.Address.Equals(nto.EvaluatePotentialOverlap(id)), true,
"NC: EvaluatePotentialOverlap returns expected!");
Assert.AreEqual(nto.EvaluateOverlap(ct_y.GetConnections(con_type), id)[0], fast_con, "NC: Have better overlap!");
}
protected bool GetSecureSender(Connection con, out SecurityAssociation sa)
{
sa = _so.GetSecureSender(con.Address);
bool ready = false;
lock(_address_to_sender) {
if(!_registered.ContainsKey(sa)) {
_registered[sa] = true;
sa.StateChangeEvent += SAStateChange;
}
if(sa.State == SecurityAssociation.States.Active ||
sa.State == SecurityAssociation.States.Updating)
{
AddConnection(con.Address, sa);
ready = true;
}
}
return ready;
}