BOOST ASIO – How to write console server

The problem is: How can I attach (or
write) console, which can calls above
functionalities. This console have to
be a client? Should I run this console
client as a sepearate thread?

You don’t need a separate thread, use a posix::stream_descriptor and assign STDIN_FILENO to it. Use async_read and handle the requests in the read handlers.

#include <boost/asio.hpp>

#include <boost/bind.hpp>
#include <boost/enable_shared_from_this.hpp>
#include <boost/shared_ptr.hpp>

#include <iostream>

using namespace boost::asio;

class Input : public boost::enable_shared_from_this<Input>
{
public:
    typedef boost::shared_ptr<Input> Ptr;

public:
    static void create(
            io_service& io_service
            )
    {
        Ptr input(
                new Input( io_service )
                );
        input->read();
    }

private:
    explicit Input(
            io_service& io_service
         ) :
        _input( io_service )
    {
        _input.assign( STDIN_FILENO );
    }

    void read()
    {
        async_read(
                _input,
                boost::asio::buffer( &_command, sizeof(_command) ),
                boost::bind(
                    &Input::read_handler,
                    shared_from_this(),
                    placeholders::error,
                    placeholders::bytes_transferred
                    )
                );
    }

    void read_handler(
            const boost::system::error_code& error,
            size_t bytes_transferred
            )
    {
        if ( error ) {
            std::cerr << "read error: " << boost::system::system_error(error).what() << std::endl;
            return;
        }

        if ( _command != '\n' ) {
            std::cout << "command: " << _command << std::endl;
        }

        this->read();
    }

private:
    posix::stream_descriptor _input;
    char _command;
};

int
main()
{
    io_service io_service;
    Input::create( io_service );
    io_service.run();
}