server won't respond...

This is a discussion on server won't respond... within the C++ Programming forums, part of the General Programming Boards category; I am connecting a client to a server via the loopback. The client is well tested and sends/recieves normally. The ...

  1. #1
    Guest Sebastiani's Avatar
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    Question server won't respond...

    I am connecting a client to a server via the loopback. The client is well tested and sends/recieves normally. The server acknowledges the connection (as does the client), but when I send the first packet to the server, it just sits there, dutifully awaiting data. No recieve error, and no 0 recieves. The client assures "Waiting for reply...", but that's it. When I kill the server, the client promtly notifies that the connection was lost. Any ideas?
    Code:
    bool flip(bool value)
    {
        return std::pow(std::exp(1), std::complex<float>(0, 1) 
        * std::complex<float>(std::atan(1)*(1 << (value + 2))))
        .real() < 0;
    }

  2. #2
    Guest Sebastiani's Avatar
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    Ok, wierd. when I close the client's socket directly after sending the data, the server acknowledges the reciept. Paradoxically, I cannot recieve the server's response now, since the client was using that socket for recieving too. No problem, just'll use another, but the thing that doesn't make sense is that the client connects to external servers without shutting down after the send (I do it after the recieve). Why is my server different? because it too is using a single socket?? Not sure, there...
    Code:
    bool flip(bool value)
    {
        return std::pow(std::exp(1), std::complex<float>(0, 1) 
        * std::complex<float>(std::atan(1)*(1 << (value + 2))))
        .real() < 0;
    }

  3. #3
    Guest Sebastiani's Avatar
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    Smile got it

    Thanks sebastiani
    Code:
    bool flip(bool value)
    {
        return std::pow(std::exp(1), std::complex<float>(0, 1) 
        * std::complex<float>(std::atan(1)*(1 << (value + 2))))
        .real() < 0;
    }

  4. #4
    ¡Amo fútbol!
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    Glad to be of service.

  5. #5
    Rebooted Inquirer's Avatar
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    where did you learn the socket programming? I have wanted to learn itr for a long time, and what compiler are you using?
    Compilers:
    GCC on Red Hat 8.1 (Primary)
    GCC on Mac OS X 10.2.4 (Secondary)

    Others:
    MinGW on XP

  6. #6
    Guest Sebastiani's Avatar
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    The Winsock Faq has some really good examples. There use to be a site called Beej's that had all kinds of fun hacks, but it seems to have dissapeared. You can use the compiler you're using, just #include <winsock.h> in your projects and link to the static library, "libwsock32.a". To do that, go to Project->Project Options, and in the box labeled "Further object files or linker options...", type this line, verbatim:
    -lwsock32
    Code:
    bool flip(bool value)
    {
        return std::pow(std::exp(1), std::complex<float>(0, 1) 
        * std::complex<float>(std::atan(1)*(1 << (value + 2))))
        .real() < 0;
    }

  7. #7
    Rebooted Inquirer's Avatar
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    THANKS MAN!

    I have been looking for that stuff for a log time, and you managed o tell me in less thatn a paragraph...

    thanks.

    ~Inquirer
    Compilers:
    GCC on Red Hat 8.1 (Primary)
    GCC on Mac OS X 10.2.4 (Secondary)

    Others:
    MinGW on XP

  8. #8
    Rebooted Inquirer's Avatar
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    hehehe...

    any good books to suplement this? i think i am in way over my head...
    Compilers:
    GCC on Red Hat 8.1 (Primary)
    GCC on Mac OS X 10.2.4 (Secondary)

    Others:
    MinGW on XP

  9. #9
    Code Goddess Prelude's Avatar
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    >There use to be a site called Beej's that had all kinds of fun hacks, but it seems to have dissapeared.
    http://www.ecst.csuchico.edu/~beej/guide/net/html/

    -Prelude
    My best code is written with the delete key.

  10. #10
    Guest Sebastiani's Avatar
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    Thanks, Prelude. I'll update my bookmark.

    any good books to suplement this? i think i am in way over my head...
    You will be pleasantly surprised by the simplicity of it all.
    Code:
    bool flip(bool value)
    {
        return std::pow(std::exp(1), std::complex<float>(0, 1) 
        * std::complex<float>(std::atan(1)*(1 << (value + 2))))
        .real() < 0;
    }

  11. #11
    End Of Line Hammer's Avatar
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    Another good starting point for general TCP/IP help:
    http://www.private.org.il/tcpip_rl.html
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  12. #12
    Rebooted Inquirer's Avatar
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    Dang. I have already created a simple telnet program that shows all telnet input to the cout, and it is written to a file. Now, where can i find out how to make threads so that i can make multiple connections to the program?
    Compilers:
    GCC on Red Hat 8.1 (Primary)
    GCC on Mac OS X 10.2.4 (Secondary)

    Others:
    MinGW on XP

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