Re: [Boost-users] Asio - Errors (Igor R)

From: Tim Pynegar (tim_at_[hidden])
Date: 2008-07-25 08:39:48

Hi,

This is the code i'm trying to run.

    server(boost::asio::io_service& io_service, short port)
            :    io_service_(io_service),
                socket_(io_service)
    {
   
        try
        {
            udp::endpoint localEndpoint( udp::v4(), port );
            socket_.bind( localEndpoint );
        }
        catch( boost::system::system_error & error )
        {
            std::cerr << "Exception: " << error.what() << "\n";
        }

        socket_.async_receive_from(    boost::asio::buffer(data_, 
max_length), sender_endpoint_,
                                    
boost::bind(&server::handle_receive_from, this,
                                    boost::asio::placeholders::error,
                                    
boost::asio::placeholders::bytes_transferred) );
    }

and the error i get is

"The file handle supplied is not valid"

I guess this means the socket itself is invalid but if i put the local 
end point into the constructor for the socket_ as below it works fine.

socket_(io_service, udp::endpoint( udp::v4(), port ) )

Thanks,
Tim.
> What message and the code of the system_error you've got? Probably, it
> will explain the reason of the error.
> By the way, most of the asio functions have no-throw version that gets
> error_code& as a paramter and fills it in case of error.
>
>