Re: [boost] Boost ASIO - Client Request TCP Help..!!

Subject: Re: [boost] Boost ASIO - Client Request TCP Help..!!
From: Rahul Mathur (srivmuk_at_[hidden])
Date: 2013-10-14 07:56:41

Thanks Joseph, I did try as -

---
boost::asio::socket_base::keep_alive option;
        socket.get_option(option);
        if (bool is_set = option.value())
                std::cout << "Setsocket option err: SO_KEEPALIVE --unable
to set keep alive tcp connection." << std::endl;
        else
                std::cout << "S0_KEEPALIVE set, with SOL_SOCKET --- Keep
Alive option set." << std::endl;
---
and it worked.
On Mon, Oct 14, 2013 at 4:39 PM, Joseph Van Riper <
fleeb.fantastique_at_[hidden]> wrote:
> On Mon, Oct 14, 2013 at 7:07 AM, Joseph Van Riper <
> fleeb.fantastique_at_[hidden]> wrote:
>
> > On Mon, Oct 14, 2013 at 2:32 AM, Rahul Mathur <srivmuk_at_[hidden]> wrote:
> >
> >> In continuation of above original code, as send() static API worked
> fine,
> >> now to to set "Keep Alive Option" for the socket, I did tried as -
> >>
> >> ---
> >> int sockKeepAliveOption = 1;
> >> int n2 = setsockopt(socket.native(), SOL_SOCKET, SO_SNDTIMEO,
> >> &sockKeepAliveOption, sizeof(sockKeepAliveOption));
> >>
> >> if(n2 == -1)
> >>         std::cout << "Setsocket option Err: SO_KEEPALIVE -- unable to
> set
> >> keep alive tcp connection." << std::endl;
> >> else
> >>         std::cout << "S0_KEEPALIVE set, with SOL_SOCKET --- Keep Alive
> >> option set." << std::endl;
> >> ---
> >>
> >> It goes to if condition of "n2 = -1", i.e unable to set keep alive tcp
> >> connection.
> >>
> >> Please suggest - How can I correct above to have "Keep Alive option
> set".
> >>
> >> Thanks!!
> >
> >
> > This page might be helpful:
> >
> >
> >
> http://www.boost.org/doc/libs/1_54_0/doc/html/boost_asio/reference/basic_stream_socket/keep_alive.html
> >
> > So, I think you'd do something like:
> >
> > socket.set_option( boost::ip::tcp::socket::keep_alive( true ) );
> >
>
> Oh, if you want a version of this that doesn't throw an exception if the
> option fails:
>
> boost::system::error_code ec;
> socket.set_option( boost::ip::tcp::socket::keep_alive( true ), ec );
> if ( ec )
> {
>    std::cout << "socket's keep-alive option could not be set: "  <<
> ec.message() << std::endl;
> }
>
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