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Thread: Socket Problem

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    Question Socket Problem

    Hello everyone, I am working on a server and client pair and they connect just fine my problem is that the server needs to detect when the client disconnects. Right not I am using

    socket.isConnected()

    and also I am creating a dataoutput stream and writting the int 700 to it. If the output stream returns an error or isConnected returns false it is supposed to kick that client off of the server.

    This is were the problem begins. If the clients computer is shut down or the process is ended then this works perfectly fine but if the client computer goes to sleep the server doesnt detect that the client is no longer connected and when the computer wakes up there is no connection or a new one is established.

    Is there anyway that I can detect if the computer is going to sleep client sided and close the socket from there or any other ways to see if the client is still connected?


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    Default Re: Socket Problem

    socket.accept() this menthos for using SocketServer is Accept for come client accept. Print Message using for host name get to connect the clinet name for using server side accept method next line.

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    Default Re: Socket Problem

    Quote Originally Posted by Jeevaraj View Post
    socket.accept() this menthos for using SocketServer is Accept for come client accept. Print Message using for host name get to connect the clinet name for using server side accept method next line.
    Huh???? That makes no sense.

    Is there anyway that I can detect if the computer is going to sleep client sided and close the socket from there or any other ways to see if the client is still connected?
    How about having the client timeout after a certain duration of activity? You could do this server side, where the server disconnects the client if no communication between the two occurs after a certain specified duration

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    Default Re: Socket Problem

    As copeg said, timeout is probably the way to go. There is a reason timeout was invented, and that's because there's not many other options. If you're not already, you will have to multi-thread things, because your thread doing communication could block (especially when your clients could be inactive) which is fine, as long as EVERYTHING ELSE is not on the same thread.

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