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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_XPUB_HPP_INCLUDED__
#define __XS_XPUB_HPP_INCLUDED__
#include "../include/xs/xs.h"
#include <deque>
#include <string>
#include "socket_base.hpp"
#include "session_base.hpp"
#include "array.hpp"
#include "dist.hpp"
#include "blob.hpp"
#include "core.hpp"
namespace xs
{
class ctx_t;
class msg_t;
class pipe_t;
class io_thread_t;
class xpub_t : public socket_base_t, public core_t
{
public:
xpub_t (xs::ctx_t *parent_, uint32_t tid_, int sid_);
~xpub_t ();
// Implementations of virtual functions from socket_base_t.
int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
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 xterminated (xs::pipe_t *pipe_);
private:
// Overloaded functions from core_t.
int filter_unsubscribed (const unsigned char *data_, size_t size_);
int filter_matching (void *subscriber_);
// The repository of subscriptions.
struct filter_t
{
xs_filter_t *type;
void *instance;
};
typedef std::vector <filter_t> filters_t;
filters_t filters;
// Distributor of messages holding the list of outbound pipes.
dist_t dist;
// True if we are in the middle of sending a multi-part message.
bool more;
// List of pending (un)subscriptions, ie. those that were already
// applied to the trie, but not yet received by the user.
typedef std::deque <blob_t> pending_t;
pending_t pending;
// Different values stored while filter extensions are being executed.
int tmp_filter_id;
xpub_t (const xpub_t&);
const xpub_t &operator = (const xpub_t&);
};
class xpub_session_t : public session_base_t
{
public:
xpub_session_t (xs::io_thread_t *io_thread_, bool connect_,
socket_base_t *socket_, const options_t &options_,
const char *protocol_, const char *address_);
~xpub_session_t ();
private:
xpub_session_t (const xpub_session_t&);
const xpub_session_t &operator = (const xpub_session_t&);
};
}
#endif
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