duplex

I have a sample service to test WCF net.tcp communication. It is very simple service and all it does is subscribing a client to the service and then calls callbackchannel to notify all connected clients about broadcasted message. The service is hosted inside IIS 7.5. Here is service code and test client to test it. [ServiceContract(CallbackContract = typeof(ISampleServiceCallBack), SessionMode = SessionMode.Required)] public interface ISampleCuratioService { [OperationContract(IsOneWay = true)] void SubcribeToService(string sub); [OperationContract] string GetData(int value);

So I was looking at the sample examples people have created for Duplex Communications namely when hosted by IIS and connected to via Silverlight. There are plenty of examples of this out there ( this MSDN article is great ), but all use the same paradigm: User A connects to server A, it puts him in an in-memory list to receive future updates. User B connects to server A, it notifies all users in list that someone "logged in". ... but what happens when User C connects to server C, the in-memory list for server C doesn't contain User A or B. The problem is that I'm looking to implement this in a

I am developing an aplication with C# to use the WIA 2.0 library. At the moment I could use most of the features, such as ADF (auto document feeder), filters and more. Now, I need to use the duplexer of my scanner (fujitsu). I'm trying to set the WIA_DPS_DOCUMENT_HANDLING_SELECT scanner property to the DUPLEX value. See the code below: try { bool hasMorePages = false; //determine if there are any more pages waiting Property documentHandlingSelect = null; Property documentHandlingStatus = null; foreach (Property prop in WiaDev.Properties) { if (prop.PropertyID == WIA_PROPERTIES.WIA_DPS_DOCUMENT

I am trying to use named pipes to communicate between a server and a client process on the same machine. server sends a message to client, client does something with it and returns a result, and server is supposed to get the result. here is the code for server: using System; using System.IO; using System.IO.Pipes; class PipeServer { static void Main() { using (NamedPipeServerStream pipeServer = new NamedPipeServerStream("testpipe", PipeDirection.InOut)) { Console.WriteLine("NamedPipeServerStream object created."); // Wait for a client to connect Console.Write("Waiting for client connection..."

I have here a WCF Duplex Service, the requierement is that the Callback to the client should have a timeout of 10 seconds, therefor my web.config file of the Service looks like this: <bindings> <basicHttpBinding> <binding name="simulatorEndpoint" closeTimeout="00:00:10" openTimeout="00:00:10" receiveTimeout="00:00:10" sendTimeout="00:00:10" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy=

The network lib I'm writing needs to send and receive messages through a TCP socket. Messages can be sent or received any time, i.e should work as a full duplex channel. I was able to implement such scenario using two threads: main thread calling send() and a dedicated thread mostly blocked at recv() call. My question is: is it possible to implement the same scenario with a single thread? I.e. by registering some callback function? As a side note: I need implement this scenario in C++, Java and Python. Yes, it possible. You need to use an API that allows multiplexed I/O. Under C/C++ and Python

Bidirectional and full-duplex are different concepts. For example the Ethernet is only half-duplex because at a specific time, only one host can send data over the wire, and it cannot send and receive data simultaneously . So when we use TCP over an Ethernet, I think TCP is only bidirectional or half-duplex. But here it says TCP is full-duplex. Why? It's certainly bidirectional, since both parties send / receive packets. What exactly do you mean when you ask if TCP is full-duplex? Both sending and receiving packets at the same time has more to do with the physical component, while TCP is a

I use Rtaudio library and I would like to implement an audio program where I can control the panning (e.g. shifting the sound from the left channel to the right channel). In my specific case, I use a duplex mode (you can find an example here: duplex mode ). It means that I link the microphone input to the speaker output. Should I apply a filter on the output buffer? What kind of filter? Can anyone help me? To reduce the signal on the left, simply multiply every sample on the left by a number less than or equal to 1, let's call it l. Similarly for the right, we'll call that number r. Generally