private IConnection TryConnect(Uri remoteUri, string resolvedAddress, BackoffTimeoutHelper backoffHelper)
{
bool flag = backoffHelper.IsExpired();
int dwFlagsAndAttributes = 0x40000000;
if (this.includeSecurityIdentity)
{
dwFlagsAndAttributes |= 0x110000;
}
PipeHandle handle = UnsafeNativeMethods.CreateFile(resolvedAddress, -1073741824, 0, IntPtr.Zero, 3, dwFlagsAndAttributes, IntPtr.Zero);
int errorCode = Marshal.GetLastWin32Error();
if (handle.IsInvalid)
{
handle.SetHandleAsInvalid();
}
else
{
int mode = 2;
if (UnsafeNativeMethods.SetNamedPipeHandleState(handle, ref mode, IntPtr.Zero, IntPtr.Zero) == 0)
{
errorCode = Marshal.GetLastWin32Error();
handle.Close();
PipeException exception = new PipeException(System.ServiceModel.SR.GetString("PipeModeChangeFailed", new object[] { PipeError.GetErrorString(errorCode) }), errorCode);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(this.CreateConnectFailedException(remoteUri, exception));
}
return(new PipeConnection(handle, this.bufferSize, false, true));
}
if ((errorCode == 2) || (errorCode == 0xe7))
{
TimeoutException exception3;
if (!flag)
{
return(null);
}
Exception exception2 = new PipeException(System.ServiceModel.SR.GetString("PipeConnectAddressFailed", new object[] { resolvedAddress, PipeError.GetErrorString(errorCode) }), errorCode);
string absoluteUri = remoteUri.AbsoluteUri;
if (errorCode == 0xe7)
{
exception3 = new TimeoutException(System.ServiceModel.SR.GetString("PipeConnectTimedOutServerTooBusy", new object[] { absoluteUri, backoffHelper.OriginalTimeout }), exception2);
}
else
{
exception3 = new TimeoutException(System.ServiceModel.SR.GetString("PipeConnectTimedOut", new object[] { absoluteUri, backoffHelper.OriginalTimeout }), exception2);
}
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(exception3);
}
PipeException innerException = new PipeException(System.ServiceModel.SR.GetString("PipeConnectAddressFailed", new object[] { resolvedAddress, PipeError.GetErrorString(errorCode) }), errorCode);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(this.CreateConnectFailedException(remoteUri, innerException));
}
public void Listen()
{
BackoffTimeoutHelper helper = new BackoffTimeoutHelper(TimeSpan.FromSeconds(1.0));
lock (this.ThisLock)
{
if (this.listenSocket != null)
{
this.listenSocket.Listen(this.settings.ListenBacklog);
this.isListening = true;
}
while (!this.isListening)
{
try
{
this.listenSocket = new Socket(this.localEndpoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
if ((this.localEndpoint.AddressFamily == AddressFamily.InterNetworkV6) && this.settings.TeredoEnabled)
{
this.listenSocket.SetSocketOption(SocketOptionLevel.IPv6, SocketOptionName.IPProtectionLevel, 10);
}
this.listenSocket.Bind(this.localEndpoint);
this.listenSocket.Listen(this.settings.ListenBacklog);
this.isListening = true;
continue;
}
catch (SocketException exception)
{
bool flag = false;
if ((exception.ErrorCode == 0x2740) && !helper.IsExpired())
{
helper.WaitAndBackoff();
flag = true;
}
if (!flag)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(ConvertListenException(exception, this.localEndpoint));
}
continue;
}
}
this.socketAsyncEventArgsPool = new SocketAsyncEventArgsPool(GetAcceptBufferSize(this.listenSocket));
}
}
