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/*
Copyright (c) 2007-2011 iMatix Corporation
Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser 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
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser 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 <vector>
#include "i_engine.hpp"
#include "stdint.hpp"
#include "blob.hpp"
#include "msg.hpp"
#include "own.hpp"
#include "fd.hpp"
namespace zmq
{
// The class handles initialisation phase of 0MQ wire-level protocol.
class zmq_init_t :
public own_t,
public i_engine_sink
{
public:
zmq_init_t (class io_thread_t *io_thread_, class socket_base_t *socket_,
class session_t *session_, fd_t fd_, const options_t &options_);
~zmq_init_t ();
private:
// Peer property IDs.
enum prop_t
{
prop_type = 1,
prop_identity = 2
};
void finalise_initialisation ();
void dispatch_engine ();
// i_engine_sink interface implementation.
bool read (class msg_t *msg_);
bool write (class msg_t *msg_);
void flush ();
void detach ();
// Handlers for incoming commands.
void process_plug ();
void process_unplug ();
// Associated wire-protocol engine.
i_engine *engine;
// Detached transient engine.
i_engine *ephemeral_engine;
// List of messages to send to the peer during the connection
// initiation phase.
typedef std::vector <msg_t> to_send_t;
to_send_t to_send;
// True if peer's identity was already received.
bool received;
// Socket the object belongs to.
class socket_base_t *socket;
// Reference to the session the init object belongs to.
// If the associated session is unknown and should be found
// depending on peer identity this value is NULL.
class session_t *session;
// Identity of the peer socket.
blob_t peer_identity;
// I/O thread the object is living in. It will be used to plug
// the engine into the same I/O thread.
class io_thread_t *io_thread;
zmq_init_t (const zmq_init_t&);
const zmq_init_t &operator = (const zmq_init_t&);
};
}
#endif
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