named-pipes

I have a windows service and a GUI that need to communicate with each other. Either can send messages at any time. I'm looking at using NamedPipes, but it seems that you cant read & write to the stream at the same time (or at least I cant find any examples that cover this case). Is it possible to do this kind of two-way communication via a single NamedPipe? Or do I need to open two pipes (one from GUI->service and one from service->GUI)? Using WCF you can use duplex named pipes // Create a contract that can be used as a callback public interface IMyCallbackService { [OperationContract(IsOneWay

How to create a named pipe in node.js? P.S.: For now I'm creating a named pipe as follows. But I think this is not best way var mkfifoProcess = spawn('mkfifo', [fifoFilePath]); mkfifoProcess.on('exit', function (code) { if (code == 0) { console.log('fifo created: ' + fifoFilePath); } else { console.log('fail to create fifo with code: ' + code); } }); Looks like name pipes aren't and won't be supported in Node core - from Ben Noordhuis 10/11/11: Windows has a concept of named pipes but since you mention mkfifo I assume you mean UNIX FIFOs. We don't support them and probably never will (FIFOs in

I am trying to write a (elevated privilege) service that will talk to a non privileged winforms application. I was able to have two console applications (one elevated one not) talk back and forth no problem but I am having a problem doing a service and a winforms app. The first instance of the pipe works perfectly. However after my client connects and I try to create a new instance so it will be ready if a 2nd client connects, but the constructor for NamedPipeServerStream throws a exception System.UnauthorizedAccessException was unhandled Message=Access to the path is denied. Source=System

I have a named pipe in linux and i want to read it from python. The problem is that the python process 'consumes' one core (100%) continuously. My code is the following: FIFO = '/var/run/mypipe' os.mkfifo(FIFO) with open(FIFO) as fifo: while True: line = fifo.read() I want to ask if the 'sleep' will help the situation or the process going to loss some input data from pipe. I can't control the input so i don't know the frequency of data input. I read about select and poll but i didn't find any example for my problem. Finally, i want to ask if the 100% usage will have any impact on the data

Can somebody clarify the meaning of PipeTransmissionMode.Message in .NET? How does .NET distinguish one message passed through the pipe from another? Can I serialize an object using a BinaryFormatter and then pass it through the pipe as a message? Or are only string messages allowed when the pipe is in PipeTransmissionMode.Message mode? Chris Dickson The pipe transmission mode is a Windows operating system concept, not a .NET concept. If a pipe is created in Message mode, each write to the pipe by the sender is treated as a separate message. The receiver can read from the pipe either: in Byte