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Running Qt Example client/server not working

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  • mrjjM mrjj

    @marlenet15

    Hi
    The IP the server find/shows might not be valid.
    for me it was not. (just ran the samples)
    use localhost for client
    and it works for me.

    That ip is not my local IP, nor my wan.
    No interface seems to have it.

    So be sure the IP it shows is correct :)

    M Offline
    M Offline
    marlenet15
    wrote on last edited by
    #7

    @mrjj On terminal I ran ifconfig and under wlan it shows the ip address that is shown on the fortune server. So what you are using is to use 127.0.0.1 on the client and server side as the ip address? Because that doesn't work either. :/

    mrjjM 1 Reply Last reply
    0
    • M marlenet15

      @mrjj On terminal I ran ifconfig and under wlan it shows the ip address that is shown on the fortune server. So what you are using is to use 127.0.0.1 on the client and server side as the ip address? Because that doesn't work either. :/

      mrjjM Offline
      mrjjM Offline
      mrjj
      Lifetime Qt Champion
      wrote on last edited by mrjj
      #8

      @marlenet15
      Ok so in linux it find right ip I guess. ( im on win)
      yes local host is that 127.x.x.x ip.
      And i use it for server IP. + the listed port.

      Are u running both samples on same machine?

      It works here both for win 7 and win 10.

      M 1 Reply Last reply
      1
      • mrjjM mrjj

        @marlenet15
        Ok so in linux it find right ip I guess. ( im on win)
        yes local host is that 127.x.x.x ip.
        And i use it for server IP. + the listed port.

        Are u running both samples on same machine?

        It works here both for win 7 and win 10.

        M Offline
        M Offline
        marlenet15
        wrote on last edited by
        #9

        @mrjj I am doing exactly as you are telling me but nothing. Also, I am using Threaded Fortune Server. Are you using that as well?

        So in my Threaded Fortune Server I have :
        IP: 192.168.1.209
        port: 45127

        In my fortune client I have:
        Server name: localhost
        port: 45127

        mrjjM kshegunovK 2 Replies Last reply
        0
        • M marlenet15

          @mrjj I am doing exactly as you are telling me but nothing. Also, I am using Threaded Fortune Server. Are you using that as well?

          So in my Threaded Fortune Server I have :
          IP: 192.168.1.209
          port: 45127

          In my fortune client I have:
          Server name: localhost
          port: 45127

          mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by
          #10

          @marlenet15
          nope, im using the "simple" ones.

          local host should work if both server and client is run on same machine.

          I will check tomorrow when i have a linux to see.

          1 Reply Last reply
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          • M marlenet15

            @mrjj I am doing exactly as you are telling me but nothing. Also, I am using Threaded Fortune Server. Are you using that as well?

            So in my Threaded Fortune Server I have :
            IP: 192.168.1.209
            port: 45127

            In my fortune client I have:
            Server name: localhost
            port: 45127

            kshegunovK Offline
            kshegunovK Offline
            kshegunov
            Moderators
            wrote on last edited by
            #11

            @marlenet15
            That's really, really strange. Could you run the client code through the debugger? What would be the TCP error the client gets?
            (I don't have Qt 4 to test, sorry).

            Kind regards.

            Read and abide by the Qt Code of Conduct

            M 1 Reply Last reply
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            • kshegunovK kshegunov

              @marlenet15
              That's really, really strange. Could you run the client code through the debugger? What would be the TCP error the client gets?
              (I don't have Qt 4 to test, sorry).

              Kind regards.

              M Offline
              M Offline
              marlenet15
              wrote on last edited by
              #12

              @kshegunov Ok So I used the regular Fortune Server and it works. So I am wondering why with the Threaded Fortune Server it does not work. The thing is I need to use threaded server.

              kshegunovK 1 Reply Last reply
              0
              • M marlenet15

                @kshegunov Ok So I used the regular Fortune Server and it works. So I am wondering why with the Threaded Fortune Server it does not work. The thing is I need to use threaded server.

                kshegunovK Offline
                kshegunovK Offline
                kshegunov
                Moderators
                wrote on last edited by
                #13

                @marlenet15 said:

                So I am wondering why with the Threaded Fortune Server it does not work. The thing is I need to use threaded server.

                Well, perhaps the example is broken; it has happened. But in any case the threaded fortune server is not really a good example of a threaded TCP server, not for real work anyway.

                Kind regards.

                Read and abide by the Qt Code of Conduct

                M 1 Reply Last reply
                1
                • kshegunovK kshegunov

                  @marlenet15 said:

                  So I am wondering why with the Threaded Fortune Server it does not work. The thing is I need to use threaded server.

                  Well, perhaps the example is broken; it has happened. But in any case the threaded fortune server is not really a good example of a threaded TCP server, not for real work anyway.

                  Kind regards.

                  M Offline
                  M Offline
                  marlenet15
                  wrote on last edited by
                  #14

                  @kshegunov Do you know of any good examples? Thank you.

                  kshegunovK 1 Reply Last reply
                  0
                  • M marlenet15

                    @kshegunov Do you know of any good examples? Thank you.

                    kshegunovK Offline
                    kshegunovK Offline
                    kshegunov
                    Moderators
                    wrote on last edited by
                    #15

                    @marlenet15
                    Honestly, no. But I was about to write something as an example for a library of mine, so I'll post when I have it.
                    Meanwhile, you should look up how to use the asynchronous TCP socket API in Qt and make your code work in single thread. Look here for example. When that's done it takes very little modification to make it work in multiple threads.

                    Kind regards.

                    Read and abide by the Qt Code of Conduct

                    M 1 Reply Last reply
                    1
                    • kshegunovK kshegunov

                      @marlenet15
                      Honestly, no. But I was about to write something as an example for a library of mine, so I'll post when I have it.
                      Meanwhile, you should look up how to use the asynchronous TCP socket API in Qt and make your code work in single thread. Look here for example. When that's done it takes very little modification to make it work in multiple threads.

                      Kind regards.

                      M Offline
                      M Offline
                      marlenet15
                      wrote on last edited by
                      #16

                      @kshegunov Thank you so much!

                      kshegunovK 1 Reply Last reply
                      0
                      • M marlenet15

                        @kshegunov Thank you so much!

                        kshegunovK Offline
                        kshegunovK Offline
                        kshegunov
                        Moderators
                        wrote on last edited by kshegunov
                        #17

                        @marlenet15
                        Hi,
                        Here you can find a threaded TCP server example. You can ignore the module specific classes QDaemonApplication (think of it as QCoreApplication) and QDaemonLog you can substitute with QDebug.

                        Enjoy!
                        Kind regards.

                        Read and abide by the Qt Code of Conduct

                        1 Reply Last reply
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