Developing chat application

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  • sangeetha
    #1

    Developing chat application

    Hello,

    I've assigned to develop a simple chat application using "C" program.
    I've written program but missing one thing. Simultaneously both user
    can type in their window. But i dont know how to implement this, in
    such way that at all the time, same thread/process should be able to
    send and recieve message from/to between their desination.

    I've written code, in that once the user1 typed the message, it cant
    send an another message untill it gets a message from the user2. Becoz
    i 've coded as receive and send in user2, and in user1 send and
    receive. I believe i've explained my problem.

    I think i'm missing some where, can any one point how to achieve this.

    Best regards,
    Sangeetha.
    Tags: None
    • Malcolm
      #2
      Re: Developing chat application


      "sangeetha" <sangeetha_b@in dia.com> wrote[color=blue]
      >
      > I've assigned to develop a simple chat application using "C" program.
      > I've written program but missing one thing. Simultaneously both user
      > can type in their window. But i dont know how to implement this, in
      > such way that at all the time, same thread/process should be able to
      > send and recieve message from/to between their desination.
      >
      > I've written code, in that once the user1 typed the message, it cant
      > send an another message untill it gets a message from the user2. Becoz
      > i 've coded as receive and send in user2, and in user1 send and
      > receive. I believe i've explained my problem.
      >[/color]
      If you're writing for a desktop system, you will probably need two
      "clients", terminals with VDU and keyboard.
      C doesn't specify how to do this. ANSI C programs just have stdin and
      stdout, which are inherently single streams and support only one user. You
      need to look at the libraries on your system, which is probably either X or
      MS Windows.


        Comment

        • Kieran Simkin
          #3
          Re: Developing chat application

          "sangeetha" <sangeetha_b@in dia.com> wrote in message
          news:4fde56d3.0 409182038.64f16 6b3@posting.goo gle.com...[color=blue]
          > Hello,
          >
          > I've assigned to develop a simple chat application using "C" program.
          > I've written program but missing one thing. Simultaneously both user
          > can type in their window. But i dont know how to implement this, in
          > such way that at all the time, same thread/process should be able to
          > send and recieve message from/to between their desination.
          >
          > I've written code, in that once the user1 typed the message, it cant
          > send an another message untill it gets a message from the user2. Becoz
          > i 've coded as receive and send in user2, and in user1 send and
          > receive. I believe i've explained my problem.[/color]

          I believe you haven't explained it very well. However, could this be an
          issue with blocking sockets? Ie, you're waiting for a message from the other
          end of your connection and program is blocking on the receive call? Anyway,
          sockets are off-topic here, so you will not get the best advice, best go
          find a newsgroup dedicated to your specific platform. However, if the
          problem is as I've described, either look into non-blocking sockets, or
          consider a multi-process setup.

          [color=blue]
          >
          > I think i'm missing some where, can any one point how to achieve this.
          >
          > Best regards,
          > Sangeetha.[/color]


            Comment

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