private void EndPointOnOnDisconnected(SocketEndPoint endPoint, ConnectionId connectionId)
{
DisposeAndRemoveEndPoint(endPoint);
// This should never be called from within a lock!
EmitOnClientDisconnected(endPoint);
}
private void DisposeAndRemoveEndPoint(SocketEndPoint endPoint)
{
endPoint?.TryDispose();
lock (_syncRoot)
{
_internalEndPoints.Remove(endPoint);
_connectedEndPoints.Remove(endPoint);
}
}
private void OnIncomingConnection(IAsyncResult ar)
{
if (_isDisposed)
{
return;
}
SocketEndPoint endPoint = null;
try
{
endPoint = CreateAndAddEndpoint();
endPoint.OnIncomingConnection(_serverSocket, ar);
lock (_syncRoot)
{
// We need to check here again because if we've been
// disposed of in the meantime, then we should close
// this incoming connection again and shut down...
if (_isDisposed)
{
DisposeAndRemoveEndPoint(endPoint);
return;
}
_connectedEndPoints.Add(endPoint);
}
// This should never be called from within a lock!
EmitOnClientConnected(endPoint);
// DO NOT ADD ANY MORE CODE AFTER THIS LINE
}
catch (Exception e)
{
Log.ErrorFormat("{0}: Caught exception while accepting incoming connection: {1}",
Name,
e);
DisposeAndRemoveEndPoint(endPoint);
}
finally
{
if (!_isDisposed)
{
BeginAccept();
}
else
{
Log.DebugFormat("{0}: No longer calling BeginAccept(): We've been disposed of",
Name);
}
}
}
private void EndPointOnOnDisconnected(SocketEndPoint endPoint, ConnectionId connectionId)
{
lock (_syncRoot)
{
_internalEndPoints.Remove(endPoint);
_connectedEndPoints.Remove(endPoint);
}
// This should never be called from within a lock!
EmitOnClientDisconnected(endPoint);
}
/// <summary>
/// Creates a new endpoint, registers all currently known subjects
/// with it and adds it to the <see cref="_internalEndPoints" /> list
/// in one atomic operation.
/// </summary>
/// <returns></returns>
private SocketEndPoint CreateAndAddEndpoint()
{
var endPoint = new SocketEndPoint(EndPointType.Server,
_name,
_clientAuthenticator,
_serverAuthenticator,
networkServiceDiscoverer: null,
codeGenerator: _codeGenerator,
heartbeatSettings: _heartbeatSettings,
latencySettings: _latencySettings,
endPointSettings: _endPointSettings);
try
{
var stopwatch = Stopwatch.StartNew();
lock (_syncRoot)
{
foreach (var subjectRegistration in _subjects.Values)
{
subjectRegistration.RegisterSubjectWith(endPoint);
}
endPoint.OnDisconnected += (ep, connectionId) => EndPointOnOnDisconnected(endPoint, connectionId);
_internalEndPoints.Add(endPoint);
// DO NOT ADD ANYTHING ELSE AFTER HERE
}
stopwatch.Stop();
Log.DebugFormat("{0}: Registering subjects with newly created endpoint took {1}ms",
_name,
stopwatch.ElapsedMilliseconds);
}
catch (Exception)
{
endPoint.Dispose();
_internalEndPoints.Remove(endPoint);
throw;
}
return(endPoint);
}