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/*
Copyright (c) 2010-2012 250bpm s.r.o.
Copyright (c) 2010-2011 Other contributors as noted in the AUTHORS file
This file is part of Crossroads I/O project.
Crossroads I/O 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.
Crossroads 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 __XS_XSUB_HPP_INCLUDED__
#define __XS_XSUB_HPP_INCLUDED__
#include <map>
#include "../include/xs/xs.h"
#include "socket_base.hpp"
#include "session_base.hpp"
#include "dist.hpp"
#include "fq.hpp"
namespace xs
{
class ctx_t;
class pipe_t;
class io_thread_t;
class xsub_t : public socket_base_t
{
public:
xsub_t (xs::ctx_t *parent_, uint32_t tid_, int sid_);
~xsub_t ();
protected:
// Overloads of functions from socket_base_t.
void xattach_pipe (xs::pipe_t *pipe_, bool icanhasall_);
int xsend (xs::msg_t *msg_, int flags_);
bool xhas_out ();
int xrecv (xs::msg_t *msg_, int flags_);
bool xhas_in ();
void xread_activated (xs::pipe_t *pipe_);
void xwrite_activated (xs::pipe_t *pipe_);
void xhiccuped (pipe_t *pipe_);
void xterminated (xs::pipe_t *pipe_);
private:
void send_subscription (pipe_t *pipe_, bool subscribe_, int filter_id_,
const unsigned char *data_, size_t size_);
// Fair queueing object for inbound pipes.
fq_t fq;
// Object for distributing the subscriptions upstream.
dist_t dist;
// Cache of all subscriptions in place at the moment.
typedef std::map <std::pair <int, blob_t>, int> subscriptions_t;
subscriptions_t subscriptions;
xsub_t (const xsub_t&);
const xsub_t &operator = (const xsub_t&);
};
class xsub_session_t : public session_base_t
{
public:
xsub_session_t (class io_thread_t *io_thread_, bool connect_,
socket_base_t *socket_, const options_t &options_,
const char *protocol_, const char *address_);
~xsub_session_t ();
private:
xsub_session_t (const xsub_session_t&);
const xsub_session_t &operator = (const xsub_session_t&);
};
}
#endif
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