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Thread: Working With Sockets

  1. #1
    Junior Member
    Join Date
    Nov 2012
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    Default Working With Sockets

    Hi All,

    I have been tasked with creating an interface to a PBX. The PBX (client) will connect to my application (Server). I have created a listener class that waits for
    messages from the client.

    this.serverSocket = new ServerSocket(this.serverPort);
    clientSocket = this.serverSocket.accept();

    Upon receipt of the message I spawn a thread that will handle that message.
    new Thread(
    new WorkerRunnable(
    clientSocket, "MS: "+i)

    From time to time I need to send messages to the client. What would be the best way to do this?
    The client needs to ACK each message I send it.
    I was thinking of creating a separate thread sendMsg(clientSocket) to handle this. So after I send my first message it (PBX) will ACK. Does this ACK stay in this thread or does it go to my listener class? If it goes to my listener class how do I know that the message I sent was ACKEed or some other message?


  2. #2
    Super Moderator Norm's Avatar
    Join Date
    May 2010
    On vacation
    Thanked 2,428 Times in 2,379 Posts

    Default Re: Working With Sockets

    Threads are one thing, socket connections are another.
    I think You can read and write through a socket from different threads.
    If you send a message through a socket and the program sends a response through the same socket, I don't think which thread did it will matter.

    I don't know what happens if more than one thread tries to read from a socket at the same time.

    Write a small test program and see what happens.
    If you don't understand my answer, don't ignore it, ask a question.

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