/*
    Copyright (c) 2007-2009 FastMQ Inc.

    This file is part of 0MQ.

    0MQ is free software; you can redistribute it and/or modify it under
    the terms of the Lesser GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    0MQ is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    Lesser GNU General Public License for more details.

    You should have received a copy of the Lesser GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef __ZMQ_ZMQ_INIT_HPP_INCLUDED__
#define __ZMQ_ZMQ_INIT_HPP_INCLUDED__

#include <string>

#include "i_inout.hpp"
#include "owned.hpp"
#include "zmq_engine.hpp"
#include "stdint.hpp"
#include "fd.hpp"
#include "options.hpp"

namespace zmq
{

    //  The class handles initialisation phase of native 0MQ wire-level
    //  protocol. Currently it can be used to handle both sides of the
    //  connection. If it grows to complex, we can separate the two into
    //  distinct classes.

    class zmq_init_t : public owned_t, public i_inout
    {
    public:

        //  Set 'connected' to true if the connection was created by 'connect'
        //  function. If it was accepted from a listening socket, set it to
        //  false.
        zmq_init_t (class io_thread_t *parent_, object_t *owner_, fd_t fd_,
            bool connected_, const options_t &options);
        ~zmq_init_t ();

    private:

        //  i_inout interface implementation.
        bool read (::zmq_msg *msg_);
        bool write (::zmq_msg *msg_);
        void flush ();

        //  Handlers for incoming commands.
        void process_plug ();
        void process_unplug ();

        void create_session ();

        //  Engine is created by zmq_init_t object. Once the initialisation
        //  phase is over it is passed to a session object, possibly running
        //  in a different I/O thread.
        zmq_engine_t *engine;

        //  If true, we are on the connecting side. If false, we are on the
        //  listening side.
        bool connected;

        //  Associated socket options.
        options_t options;

        zmq_init_t (const zmq_init_t&);
        void operator = (const zmq_init_t&);
    };

}

#endif