private void TryEstablishConnection( )
{
if ( null == TcpClient ) {
TcpClient = new TcpClient( );
}
while ( EndPointEnumerator.MoveNext( ) ) {
CurrentEndPoint = EndPointEnumerator.Current;
Debug.Print( "ServerConnector.TryEstablishConnection: trying {0}", CurrentEndPoint );
OnConnectionAttemptStarted( CurrentEndPoint );
try {
TcpClient.BeginConnect( CurrentEndPoint.Address, CurrentEndPoint.Port, ConnectCallback, null );
return;
}
catch ( NotSupportedException e ) {
Debug.Print( "ServerConnector.TryEstablishConnection: TcpClient.BeginConnect: caught NotSupportedException:\n{0}", e );
}
catch ( Exception e ) {
Debug.Print( "ServerConnector.TryEstablishConnection: TcpClient.BeginConnect: caught exception:\n{0}", e );
}
}
if ( null != TcpClient ) {
SocketRegistry.Unregister( TcpClient.Client.LocalEndPoint as IPEndPoint );
TcpClient.Close( );
TcpClient = null;
}
EndPointEnumerator.Dispose( );
EndPoints = null;
OnConnectionFailed( new Exception( "Ran out of IP addresses and ports to try." ) );
}
// Event dispatchers
protected virtual void OnConnectionAttemptStarted( SslEndPoint sslEndPoint )
{
var handler = ConnectionAttemptStarted;
if ( null != handler ) {
handler( this, new ConnectionAttemptStartedEventArgs( sslEndPoint ) );
}
}
protected virtual void OnConnectionAttemptFailed( SslEndPoint sslEndPoint, Exception e )
{
var handler = ConnectionAttemptFailed;
if ( null != handler ) {
handler( this, new ConnectionAttemptFailedEventArgs( sslEndPoint, e ) );
}
}
protected virtual void Dispose( bool disposing )
{
if ( disposing ) {
ConnectionAttemptStarted = null;
ConnectionAttemptFailed = null;
ConnectionFailed = null;
ConnectionEstablished = null;
EndPoints = null;
IPAddresses = null;
CurrentEndPoint = null;
CertificateCollection = null;
Configuration = null;
if ( null != EndPointEnumerator ) {
EndPointEnumerator.Dispose( );
EndPointEnumerator = null;
}
if ( null != TcpClient ) {
TcpClient.Close( );
TcpClient = null;
}
if ( null != _protocolHandler ) {
_protocolHandler.Dispose( );
_protocolHandler = null;
}
if ( null != _sslStream ) {
_sslStream.Dispose( );
_sslStream = null;
}
}
}
public ConnectionAttemptStartedEventArgs( SslEndPoint sslEndPoint )
{
SslEndPoint = sslEndPoint;
}
public ConnectionAttemptFailedEventArgs( SslEndPoint sslEndPoint, Exception e )
{
SslEndPoint = sslEndPoint;
Exception = e;
}