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/*
Copyright (c) 2009-2012 250bpm s.r.o.
Copyright (c) 2007-2009 iMatix Corporation
Copyright (c) 2007-2011 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_SUB_HPP_INCLUDED__
#define __XS_SUB_HPP_INCLUDED__
#include <vector>
#include "../include/xs.h"
#include "xsub.hpp"
#include "core.hpp"
namespace xs
{
class ctx_t;
class msg_t;
class io_thread_t;
class socket_base_t;
class sub_t : public xsub_t, public core_t
{
public:
sub_t (xs::ctx_t *parent_, uint32_t tid_, int sid_);
~sub_t ();
private:
// Overloaded functions from socket_base_t.
int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
int xsend (xs::msg_t *msg_, int flags_);
int xrecv (xs::msg_t *msg_, int flags_);
bool xhas_in ();
bool xhas_out ();
// Overloaded functions from core_t.
int filter_subscribed (const unsigned char *data_, size_t size_);
int filter_unsubscribed (const unsigned char *data_, size_t size_);
// The repository of subscriptions.
struct filter_t
{
xs_filter_t *type;
void *instance;
};
typedef std::vector <filter_t> filters_t;
filters_t filters;
// If true, part of a multipart message was already received, but
// there are following parts still waiting.
bool more;
// If true, 'message' contains a matching message to return on the
// next recv call.
bool has_message;
msg_t message;
// Check whether the message matches at least one subscription.
bool match (xs::msg_t *msg_);
sub_t (const sub_t&);
const sub_t &operator = (const sub_t&);
};
class sub_session_t : public xsub_session_t
{
public:
sub_session_t (xs::io_thread_t *io_thread_, bool connect_,
xs::socket_base_t *socket_, const options_t &options_,
const char *protocol_, const char *address_);
~sub_session_t ();
private:
sub_session_t (const sub_session_t&);
const sub_session_t &operator = (const sub_session_t&);
};
}
#endif
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