internal UdpChannelListener(UdpTransportBindingElement udpTransportBindingElement, BindingContext context)
: base(context.Binding)
{
Fx.Assert(udpTransportBindingElement != null, "udpTransportBindingElement can't be null");
Fx.Assert(context != null, "BindingContext parameter can't be null");
this.udpTransportBindingElement = udpTransportBindingElement;
this.cleanedUp = 0;
this.duplicateDetector = null;
if (udpTransportBindingElement.DuplicateMessageHistoryLength > 0)
{
this.duplicateDetector = new DuplicateMessageDetector(udpTransportBindingElement.DuplicateMessageHistoryLength);
}
this.onChannelClosed = new EventHandler(OnChannelClosed);
// We should only throw this exception if the user specified realistic MaxReceivedMessageSize less than or equal to max message size over UDP.
// If the user specified something bigger like Long.MaxValue, we shouldn't stop them.
if (this.udpTransportBindingElement.MaxReceivedMessageSize <= UdpConstants.MaxMessageSizeOverIPv4 &&
this.udpTransportBindingElement.SocketReceiveBufferSize < this.udpTransportBindingElement.MaxReceivedMessageSize)
{
throw FxTrace.Exception.ArgumentOutOfRange("SocketReceiveBufferSize", this.udpTransportBindingElement.SocketReceiveBufferSize,
SR.Property1LessThanOrEqualToProperty2("MaxReceivedMessageSize", this.udpTransportBindingElement.MaxReceivedMessageSize,
"SocketReceiveBufferSize", this.udpTransportBindingElement.SocketReceiveBufferSize));
}
int maxBufferSize = (int)Math.Min(udpTransportBindingElement.MaxReceivedMessageSize, UdpConstants.MaxMessageSizeOverIPv4);
this.bufferManager = BufferManager.CreateBufferManager(udpTransportBindingElement.MaxBufferPoolSize, maxBufferSize);
this.messageEncoderFactory = UdpUtility.GetEncoder(context);
UdpUtility.ValidateDuplicateDetectionAndRetransmittionSupport(this.messageEncoderFactory, this.udpTransportBindingElement.RetransmissionSettings.Enabled, this.udpTransportBindingElement.DuplicateMessageHistoryLength > 0);
InitUri(context);
//Note: because we are binding the sockets in InitSockets, we can start receiving data immediately.
//If there is a delay between the Building of the listener and the call to Open, stale data could build up
//inside the Winsock buffer. We have decided that making sure the port is updated correctly in the listen uri
//(e.g. in the ListenUriMode.Unique case) before leaving the build step is more important than the
//potential for stale data.
InitSockets(context.ListenUriMode == ListenUriMode.Unique);
Fx.Assert(!this.listenUri.IsDefaultPort, "Listen Uri's port should never be the default port: " + this.listenUri);
}
protected override void OnOpening()
{
base.OnOpening();
// This check is necessary to avoid that the HostNameComparisonMode from the IIS listener address
// is copied in an ASP-Net hosted environment when the IIS hosted service acts as client of another destination service
// (for example using WSDualHttpBinding in a routing service)
if (this.HostedVirtualPath != null)
{
// Copy the HostNameComparisonMode if necessary
BaseUriWithWildcard baseAddress = AspNetEnvironment.Current.GetBaseUri(this.Scheme, this.Uri);
if (baseAddress != null)
{
this.hostNameComparisonMode = baseAddress.HostNameComparisonMode;
}
}
this.bufferManager = BufferManager.CreateBufferManager(MaxBufferPoolSize, GetMaxBufferSize());
}
protected override void OnOpening()
{
base.OnOpening();
this.bufferManager = BufferManager.CreateBufferManager(MaxBufferPoolSize, GetMaxBufferSize());
}
