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 13:50:33

true. Thanks Joe.!!

On Mon, Oct 14, 2013 at 6:05 PM, Joseph Van Riper <
fleeb.fantastique_at_[hidden]> wrote:

> On Mon, Oct 14, 2013 at 7:56 AM, Rahul Mathur <srivmuk_at_[hidden]> wrote:
>
> > 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.
> >
>
> Notice that you are not affecting a change of the socket's option with this
> code.  You are only reporting on the keep-alive option.  And even then, you
> had the results reversed, reporting the option as set when it wasn't.
>
> If you want to cause the socket's option to change, you would call it's
> set_option function as in my original example.
>
> To clarify your code a little by not setting a variable while
> simultaneously testing it in an if statement, consider:
>
> boost::asio::ip::tcp::socket::keep_alive keep_alive;
> socket.get_option( keep_alive );
> bool is_set = keep_alive.value();
> if ( is_set )
> {
>   std::cout << "Socket keep-alive option is set." << std::endl;
> }
> else
> {
>   std::cout << "Socket keep-alive option is not set." << std::endl;
> }
>
> I hope this is helpful.
>
> - Trey
>
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