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/*
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_LISTENER_HPP_INCLUDED__
#define __ZMQ_LISTENER_HPP_INCLUDED__
#include <map>
#include <vector>
#include <string>
#include "io_object.hpp"
#include "tcp_listener.hpp"
#include "i_poller.hpp"
#include "i_poll_events.hpp"
#include "stdint.hpp"
namespace zmq
{
class listener_t : public io_object_t, public i_poll_events
{
public:
listener_t (class io_thread_t *thread_, const char *addr_,
class session_t *peer_, bool has_in_, bool has_out_,
uint64_t taskset_);
void terminate ();
void shutdown ();
// This function is called by session stub once the identity
// is retrieved from the incoming connection.
void got_identity (class session_stub_t *session_stub_,
const char *identity_);
void process_reg (class simple_semaphore_t *smph_);
void process_unreg (class simple_semaphore_t *smph_);
// i_poll_events implementation.
void in_event ();
void out_event ();
void timer_event ();
private:
~listener_t ();
struct i_poller *poller;
// Handle corresponding to the listening socket.
handle_t handle;
// Actual listening socket.
tcp_listener_t tcp_listener;
// Address to bind to.
std::string addr;
// Peer session. All the newly created connections should bind to
// this session.
session_t *peer;
// Taskset specifies which I/O threads are to be use to handle
// newly created connections (0 = all).
uint64_t taskset;
// Sessions created by this listener are stored in this map. They are
// indexed by peer identities so that the same peer connects to the
// same session after reconnection.
// NB: Sessions are destroyed from other place and possibly later on,
// so no need to care about them during listener object termination.
typedef std::map <std::string, class session_t*> sessions_t;
sessions_t sessions;
// List of engines (bound to temorary session stubs) that we haven't
// retrieved the identity from so far.
typedef std::vector <class session_stub_t*> session_stubs_t;
session_stubs_t session_stubs;
// If true, create inbound pipe when binding new connection
// to the peer.
bool has_in;
// If true, create outbound pipe when binding new connection
// to the peer.
bool has_out;
listener_t (const listener_t&);
void operator = (const listener_t&);
};
}
#endif
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