Sample on NamedPipeServerStream vs NamedPipeServerClient having PipeDirection.InOut needed

Question

I'm looking for a good sample where NamedPipeServerStream and NamedPipeServerClient can send messages to each other (when PipeDirection = PipeDirection.InOut for both). For now I found only this msdn article. But it describes only server. Does anybody know how client connecting to this server should look like?

Answer 1

What happens is the server sits waiting for a connection, when it has one it sends a string "Waiting" as a simple handshake, the client then reads this and tests it then sends back a string of "Test Message" (in my app it's actually the command line args).

Remember that the WaitForConnection is blocking so you probably want to run that on a separate thread.

class NamedPipeExample {    private void client() {     var pipeClient = new NamedPipeClientStream(".",        "testpipe", PipeDirection.InOut, PipeOptions.None);      if (pipeClient.IsConnected != true) { pipeClient.Connect(); }      StreamReader sr = new StreamReader(pipeClient);     StreamWriter sw = new StreamWriter(pipeClient);      string temp;     temp = sr.ReadLine();      if (temp == "Waiting") {       try {         sw.WriteLine("Test Message");         sw.Flush();         pipeClient.Close();       }       catch (Exception ex) { throw ex; }     }   } 

Same Class, Server Method

  private void server() {     var pipeServer = new NamedPipeServerStream("testpipe", PipeDirection.InOut, 4);      StreamReader sr = new StreamReader(pipeServer);     StreamWriter sw = new StreamWriter(pipeServer);      do {       try {         pipeServer.WaitForConnection();         string test;         sw.WriteLine("Waiting");         sw.Flush();         pipeServer.WaitForPipeDrain();         test = sr.ReadLine();         Console.WriteLine(test);       }        catch (Exception ex) { throw ex; }        finally {         pipeServer.WaitForPipeDrain();         if (pipeServer.IsConnected) { pipeServer.Disconnect(); }       }     } while (true);   } }