public void RefreshConnection()
{
// Are we open and is any maintenance activity occuring
if (isOpen)
{
bool continueMaintenance = false;
if (!isRunningMaintenance)
{
lock (ThisLock)
{
if (!isRunningMaintenance)
{
isRunningMaintenance = true;
continueMaintenance = true;
}
}
}
if (continueMaintenance)
{
try
{
TimeoutHelper timeoutHelper = new TimeoutHelper(config.MaintainerTimeout);
maintainerTimer.Cancel(); // No maintainer until after connect has succeeded
using (IConnectAlgorithms connectAlgorithm = (IConnectAlgorithms) new TConnectAlgorithms())
{
// Always go to the resolver for RefreshConnection
ReadOnlyCollection <PeerNodeAddress> addresses = ResolveNewAddresses(timeoutHelper.RemainingTime(), true);
connectAlgorithm.Initialize(this, config, neighborManager.ConnectedNeighborCount + 1, new Dictionary <EndpointAddress, Referral>());
if (addresses.Count > 0)
{
if (isOpen)
{
connectAlgorithm.UpdateEndpointsCollection(addresses);
connectAlgorithm.Connect(timeoutHelper.RemainingTime());
}
}
}
}
finally
{
ResetMaintenance();
}
}
}
}
public void RefreshConnection()
{
if (this.isOpen)
{
bool flag = false;
if (!this.isRunningMaintenance)
{
lock (this.ThisLock)
{
if (!this.isRunningMaintenance)
{
this.isRunningMaintenance = true;
flag = true;
}
}
}
if (flag)
{
try
{
TimeoutHelper helper = new TimeoutHelper(this.config.MaintainerTimeout);
this.maintainerTimer.Cancel();
using (IConnectAlgorithms algorithms = (default(TConnectAlgorithms) == null) ? ((IConnectAlgorithms)Activator.CreateInstance <TConnectAlgorithms>()) : ((IConnectAlgorithms)default(TConnectAlgorithms)))
{
ReadOnlyCollection <PeerNodeAddress> src = this.ResolveNewAddresses(helper.RemainingTime(), true);
algorithms.Initialize(this, this.config, this.neighborManager.ConnectedNeighborCount + 1, new Dictionary <EndpointAddress, Referral>());
if ((src.Count > 0) && this.isOpen)
{
algorithms.UpdateEndpointsCollection(src);
algorithms.Connect(helper.RemainingTime());
}
}
}
finally
{
this.ResetMaintenance();
}
}
}
}
private void MaintainConnections(object dummy)
{
if (this.isOpen)
{
bool flag = false;
if (!this.isRunningMaintenance)
{
lock (this.ThisLock)
{
if (!this.isRunningMaintenance)
{
this.isRunningMaintenance = true;
flag = true;
}
}
}
if (flag)
{
if (DiagnosticUtility.ShouldTraceInformation)
{
PeerMaintainerTraceRecord extendedData = new PeerMaintainerTraceRecord(System.ServiceModel.SR.GetString("PeerMaintainerStarting", new object[] { this.config.MeshId }));
TraceUtility.TraceEvent(TraceEventType.Information, 0x40051, System.ServiceModel.SR.GetString("TraceCodePeerMaintainerActivity"), extendedData, this, null);
}
TimeoutHelper helper = new TimeoutHelper(this.config.MaintainerTimeout);
try
{
this.maintainerTimer.Cancel();
int connectedNeighborCount = this.neighborManager.ConnectedNeighborCount;
if (connectedNeighborCount != this.config.IdealNeighbors)
{
using (IConnectAlgorithms algorithms = (default(TConnectAlgorithms) == null) ? ((IConnectAlgorithms)Activator.CreateInstance <TConnectAlgorithms>()) : ((IConnectAlgorithms)default(TConnectAlgorithms)))
{
algorithms.Initialize(this, this.config, this.config.IdealNeighbors, this.referralCache);
if (connectedNeighborCount > this.config.IdealNeighbors)
{
if (DiagnosticUtility.ShouldTraceInformation)
{
PeerMaintainerTraceRecord record2 = new PeerMaintainerTraceRecord(System.ServiceModel.SR.GetString("PeerMaintainerPruneMode", new object[] { this.config.MeshId }));
TraceUtility.TraceEvent(TraceEventType.Information, 0x40051, System.ServiceModel.SR.GetString("TraceCodePeerMaintainerActivity"), record2, this, null);
}
algorithms.PruneConnections();
}
if (this.neighborManager.ConnectedNeighborCount < this.config.IdealNeighbors)
{
if (this.referralCache.Count == 0)
{
ReadOnlyCollection <PeerNodeAddress> src = this.ResolveNewAddresses(helper.RemainingTime(), true);
algorithms.UpdateEndpointsCollection(src);
}
if (DiagnosticUtility.ShouldTraceInformation)
{
PeerMaintainerTraceRecord record3 = new PeerMaintainerTraceRecord(System.ServiceModel.SR.GetString("PeerMaintainerConnectMode", new object[] { this.config.MeshId }));
TraceUtility.TraceEvent(TraceEventType.Information, 0x40051, System.ServiceModel.SR.GetString("TraceCodePeerMaintainerActivity"), record3, this, null);
}
algorithms.Connect(helper.RemainingTime());
}
}
}
}
catch (Exception exception)
{
if (Fx.IsFatal(exception))
{
throw;
}
DiagnosticUtility.ExceptionUtility.TraceHandledException(exception, TraceEventType.Information);
}
finally
{
if (DiagnosticUtility.ShouldTraceInformation)
{
PeerMaintainerTraceRecord record4 = new PeerMaintainerTraceRecord("Maintainer cycle finish");
TraceUtility.TraceEvent(TraceEventType.Information, 0x40051, System.ServiceModel.SR.GetString("TraceCodePeerMaintainerActivity"), record4, this, null);
}
}
this.ResetMaintenance();
}
}
}
private void InitialConnection(object dummy)
{
if (this.isOpen)
{
bool flag = false;
if (!this.isRunningMaintenance)
{
lock (this.ThisLock)
{
if (!this.isRunningMaintenance)
{
this.isRunningMaintenance = true;
flag = true;
}
}
}
if (flag)
{
if (DiagnosticUtility.ShouldTraceInformation)
{
PeerMaintainerTraceRecord extendedData = new PeerMaintainerTraceRecord(System.ServiceModel.SR.GetString("PeerMaintainerInitialConnect", new object[] { this.config.MeshId }));
TraceUtility.TraceEvent(TraceEventType.Information, 0x40051, System.ServiceModel.SR.GetString("TraceCodePeerMaintainerActivity"), extendedData, this, null);
}
TimeoutHelper helper = new TimeoutHelper(this.config.MaintainerTimeout);
Exception e = null;
try
{
this.maintainerTimer.Cancel();
using (IConnectAlgorithms algorithms = (default(TConnectAlgorithms) == null) ? ((IConnectAlgorithms)Activator.CreateInstance <TConnectAlgorithms>()) : ((IConnectAlgorithms)default(TConnectAlgorithms)))
{
algorithms.Initialize(this, this.config, this.config.MinNeighbors, this.referralCache);
if (this.referralCache.Count == 0)
{
ReadOnlyCollection <PeerNodeAddress> src = this.ResolveNewAddresses(helper.RemainingTime(), false);
algorithms.UpdateEndpointsCollection(src);
}
if (this.isOpen)
{
algorithms.Connect(helper.RemainingTime());
}
}
}
catch (Exception exception2)
{
if (Fx.IsFatal(exception2))
{
throw;
}
DiagnosticUtility.ExceptionUtility.TraceHandledException(exception2, TraceEventType.Information);
e = exception2;
}
if (this.isOpen)
{
try
{
lock (this.ThisLock)
{
if (this.isOpen)
{
if (this.neighborManager.ConnectedNeighborCount < 1)
{
this.maintainerTimer.Set(this.config.MaintainerRetryInterval);
}
else
{
this.maintainerTimer.Set(this.config.MaintainerInterval);
}
}
}
}
catch (Exception exception3)
{
if (Fx.IsFatal(exception3))
{
throw;
}
DiagnosticUtility.ExceptionUtility.TraceHandledException(exception3, TraceEventType.Information);
if (e == null)
{
e = exception3;
}
}
}
lock (this.ThisLock)
{
this.isRunningMaintenance = false;
}
if (this.connectCallback != null)
{
this.connectCallback(e);
}
}
}
}
// This activity maintains the connected nodes
void MaintainConnections(object dummy)
{
// Are we open and is any maintenance activity occuring
if (isOpen)
{
bool continueMaintenance = false;
if (!isRunningMaintenance)
{
lock (ThisLock)
{
if (!isRunningMaintenance)
{
isRunningMaintenance = true;
continueMaintenance = true;
}
}
}
if (continueMaintenance)
{
if (DiagnosticUtility.ShouldTraceInformation)
{
PeerMaintainerTraceRecord record = new PeerMaintainerTraceRecord(SR.GetString(SR.PeerMaintainerStarting, this.config.MeshId));
TraceUtility.TraceEvent(TraceEventType.Information, TraceCode.PeerMaintainerActivity, SR.GetString(SR.TraceCodePeerMaintainerActivity),
record, this, null);
}
TimeoutHelper timeoutHelper = new TimeoutHelper(config.MaintainerTimeout);
try
{
maintainerTimer.Cancel(); // No reconnect until after connect has succeeded
int currentlyConnected = neighborManager.ConnectedNeighborCount;
if (currentlyConnected != config.IdealNeighbors) // Already at ideal no work to do
{
using (IConnectAlgorithms connectAlgorithm = (IConnectAlgorithms) new TConnectAlgorithms())
{
connectAlgorithm.Initialize(this, config, config.IdealNeighbors, referralCache);
if (currentlyConnected > config.IdealNeighbors)
{
if (DiagnosticUtility.ShouldTraceInformation)
{
PeerMaintainerTraceRecord record = new PeerMaintainerTraceRecord(SR.GetString(SR.PeerMaintainerPruneMode, this.config.MeshId));
TraceUtility.TraceEvent(TraceEventType.Information, TraceCode.PeerMaintainerActivity, SR.GetString(SR.TraceCodePeerMaintainerActivity),
record, this, null);
}
connectAlgorithm.PruneConnections();
}
// During Prune some other neighbor may have gone away which leaves us below Ideal
// So try to reconnect
currentlyConnected = neighborManager.ConnectedNeighborCount;
if (currentlyConnected < config.IdealNeighbors)
{
if (referralCache.Count == 0)
{
ReadOnlyCollection <PeerNodeAddress> addresses = ResolveNewAddresses(timeoutHelper.RemainingTime(), true);
connectAlgorithm.UpdateEndpointsCollection(addresses);
}
if (DiagnosticUtility.ShouldTraceInformation)
{
PeerMaintainerTraceRecord record = new PeerMaintainerTraceRecord(SR.GetString(SR.PeerMaintainerConnectMode, this.config.MeshId));
TraceUtility.TraceEvent(TraceEventType.Information, TraceCode.PeerMaintainerActivity, SR.GetString(SR.TraceCodePeerMaintainerActivity),
record, this, null);
}
connectAlgorithm.Connect(timeoutHelper.RemainingTime());
}
}
}
}
#pragma warning suppress 56500 // covered by FxCOP
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
DiagnosticUtility.TraceHandledException(e, TraceEventType.Information);
// We ---- all non Fatal exceptions because this is a worker thread, with no user code waiting
}
finally
{
if (DiagnosticUtility.ShouldTraceInformation)
{
PeerMaintainerTraceRecord record = new PeerMaintainerTraceRecord("Maintainer cycle finish");
TraceUtility.TraceEvent(TraceEventType.Information, TraceCode.PeerMaintainerActivity, SR.GetString(SR.TraceCodePeerMaintainerActivity),
record, this, null);
}
}
ResetMaintenance();
}
}
}
void InitialConnection(object dummy)
{
// Are we open and is any maintenance activity occuring
if (isOpen)
{
bool continueMaintenance = false;
if (!isRunningMaintenance)
{
lock (ThisLock)
{
if (!isRunningMaintenance)
{
isRunningMaintenance = true;
continueMaintenance = true;
}
}
}
if (continueMaintenance)
{
if (DiagnosticUtility.ShouldTraceInformation)
{
PeerMaintainerTraceRecord record = new PeerMaintainerTraceRecord(SR.GetString(SR.PeerMaintainerInitialConnect, this.config.MeshId));
TraceUtility.TraceEvent(TraceEventType.Information, TraceCode.PeerMaintainerActivity, SR.GetString(SR.TraceCodePeerMaintainerActivity),
record, this, null);
}
TimeoutHelper timeoutHelper = new TimeoutHelper(config.MaintainerTimeout);
Exception exception = null;
// The connection algorithm may be pluggable if we provide an api or metadata to enable it.
// I am sure that research would be interested in doing such a thing.
try
{
maintainerTimer.Cancel(); // No reconnect until after connect has succeeded
using (IConnectAlgorithms connectAlgorithm = (IConnectAlgorithms) new TConnectAlgorithms())
{
connectAlgorithm.Initialize(this, config, config.MinNeighbors, referralCache);
if (referralCache.Count == 0)
{
ReadOnlyCollection <PeerNodeAddress> addresses = ResolveNewAddresses(timeoutHelper.RemainingTime(), false);
connectAlgorithm.UpdateEndpointsCollection(addresses);
}
if (isOpen)
{
connectAlgorithm.Connect(timeoutHelper.RemainingTime());
}
}
}
#pragma warning suppress 56500 // covered by FxCOP
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
DiagnosticUtility.TraceHandledException(e, TraceEventType.Information);
exception = e; // Exeption is saved and transferred
}
if (isOpen)
{
try
{
lock (ThisLock)
{
if (isOpen)
{
// No reconnect until after connect has succeeded
if (neighborManager.ConnectedNeighborCount < 1)
{
maintainerTimer.Set(config.MaintainerRetryInterval);
}
else
{
maintainerTimer.Set(config.MaintainerInterval);
}
}
}
}
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
DiagnosticUtility.TraceHandledException(e, TraceEventType.Information);
if (exception == null)
{
exception = e; // Exeption is saved and transferred via callback
}
}
}
lock (ThisLock)
{
isRunningMaintenance = false;
}
if (connectCallback != null)
{
connectCallback(exception);
}
}
}
}
