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Asynchronous Communication


Asynchronous Communication

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Asynchronous Communication
Tag : chash , By : Bin
Date : November 23 2020, 12:01 PM

hop of those help? I think you are little mistaken by word "server". It is not web server, it is ordinal computer (or even application) which serves request. So for you multiuser chat you need to create 2 kind of application - server and client. Server will listen to clients and reply them. Usually, there is only one server and lot of clients. I suggest you to start writing simple server/client program and then improve them. Create server which will serve only 1 user at time. It will listen to specific port on local IP. I use Task to simplify program.
        byte[] ba = new byte[1024];
        new Task(() => {
            Output("Going to listen to messages...");
            Socket listeningS = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            // Listening to local address. You should listen to external IP for real server
            IPEndPoint ep = new IPEndPoint(IPAddress.Any, port);
            listeningS.Bind((EndPoint)ep);
            // One and only client at a time :)
            listeningS.Listen(1);
            while (isRunning)
            {
                // Accept client, receive data and send it back
                Socket clientS = listeningS.Accept();
                int total = clientS.Receive(ba, 0, ba.Length, SocketFlags.None);
                total = clientS.Send(ba, 0, total, SocketFlags.None);
                // Client will open new connection (but later it is possible to use same)
                clientS.Shutdown(SocketShutdown.Both);
                clientS.Close();

            }
        }).Start();
    byte[] ba = Encoding.UTF8.GetBytes(message);
    Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
    s.Connect(IPAddress.Loopback, port);
    total = s.Send(ba, SocketFlags.None);
    total = s.Receive(ba, 0, ba.Length, SocketFlags.None);
    if (total > 0)
    {
        Output(Encoding.UTF8.GetString(ba, 0, total));
    }

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Asynchronous TCP Communication in .NET


Tag : .net , By : Cube_Zombie
Date : March 29 2020, 07:55 AM
will help you There is a difference, if you use a Worker thread to call the synchronous version you will tie up one of the threads on a blocking call.
Whereas the Begin methods will not tie up a thread but will instead use a callback on an appropriate I/O signal, the call back will then run on a thread from the pool.

Asynchronous communication with WCF


Tag : wcf , By : AdrianB
Date : March 29 2020, 07:55 AM
should help you out WCF has netMsmqBinding that can handle both client and server messaging. If you use it MSMQ will be almost invisible to you. You will send message to WCF service, it will be put to MSMQ and server-side WCF will pick it and invoke method like with any other binding.
If you have any experience in creating WCF service you should do the same but also create MSMQ Queue.

asynchronous communication between c++ and c# in the same app


Tag : chash , By : Vinicios
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Communicating asynchronously between C# and C++ is no different to communicating asynchronously between two parts of a C# application- you just end up calling a different function at the end- that is, C#'s delegate types will turn into function pointers on the C++ end courtesy of the .NET JIT. This is known as reverse P/Invoke and will allow unmanaged C++ to call in to .NET code.

Two-way asynchronous communication in C++


Tag : cpp , By : Debashree
Date : March 29 2020, 07:55 AM
This might help you I've not used Boost.ASIO, but searching for "boost asio ip address" and "boost asio gethostbyname" yielded this stuff:
http://www.boost.org/doc/libs/1_45_0/doc/html/boost_asio/reference/ip__address.html
boost::shared_ptr< boost::asio::io_service > io_service(
    new boost::asio::io_service
);
boost::asio::ip::tcp::resolver resolver( *io_service );
boost::asio::ip::tcp::resolver::query query( 
    "www.google.com", // host string
    boost::lexical_cast< std::string >( 80 ) // port #
);
boost::asio::ip::tcp::resolver::iterator iterator = resolver.resolve( query );
boost::asio::ip::tcp::endpoint endpoint = *iterator;

Asynchronous communication in c


Tag : c , By : nagre
Date : March 29 2020, 07:55 AM
around this issue
I was told that I have to use callbacks as this is an asynchronous operation.
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