mirror of
https://github.com/zeromq/libzmq.git
synced 2024-12-13 18:55:10 +01:00
108 lines
3.4 KiB
C++
108 lines
3.4 KiB
C++
/*
|
|
Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
|
|
|
|
This file is part of libzmq, the ZeroMQ core engine in C++.
|
|
|
|
libzmq is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU Lesser General Public License (LGPL) as published
|
|
by the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
As a special exception, the Contributors give you permission to link
|
|
this library with independent modules to produce an executable,
|
|
regardless of the license terms of these independent modules, and to
|
|
copy and distribute the resulting executable under terms of your choice,
|
|
provided that you also meet, for each linked independent module, the
|
|
terms and conditions of the license of that module. An independent
|
|
module is a module which is not derived from or based on this library.
|
|
If you modify this library, you must extend this exception to your
|
|
version of the library.
|
|
|
|
libzmq 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_STREAM_HPP_INCLUDED__
|
|
#define __ZMQ_STREAM_HPP_INCLUDED__
|
|
|
|
#include <map>
|
|
|
|
#include "router.hpp"
|
|
|
|
namespace zmq
|
|
{
|
|
|
|
class ctx_t;
|
|
class pipe_t;
|
|
|
|
class stream_t :
|
|
public socket_base_t
|
|
{
|
|
public:
|
|
|
|
stream_t (zmq::ctx_t *parent_, uint32_t tid_, int sid);
|
|
~stream_t ();
|
|
|
|
// Overrides of functions from socket_base_t.
|
|
void xattach_pipe (zmq::pipe_t *pipe_, bool subscribe_to_all_);
|
|
int xsend (zmq::msg_t *msg_);
|
|
int xrecv (zmq::msg_t *msg_);
|
|
bool xhas_in ();
|
|
bool xhas_out ();
|
|
void xread_activated (zmq::pipe_t *pipe_);
|
|
void xwrite_activated (zmq::pipe_t *pipe_);
|
|
void xpipe_terminated (zmq::pipe_t *pipe_);
|
|
int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
|
|
private:
|
|
// Generate peer's id and update lookup map
|
|
void identify_peer (pipe_t *pipe_);
|
|
|
|
// Fair queueing object for inbound pipes.
|
|
fq_t fq;
|
|
|
|
// True iff there is a message held in the pre-fetch buffer.
|
|
bool prefetched;
|
|
|
|
// If true, the receiver got the message part with
|
|
// the peer's identity.
|
|
bool identity_sent;
|
|
|
|
// Holds the prefetched identity.
|
|
msg_t prefetched_id;
|
|
|
|
// Holds the prefetched message.
|
|
msg_t prefetched_msg;
|
|
|
|
struct outpipe_t
|
|
{
|
|
zmq::pipe_t *pipe;
|
|
bool active;
|
|
};
|
|
|
|
// Outbound pipes indexed by the peer IDs.
|
|
typedef std::map <blob_t, outpipe_t> outpipes_t;
|
|
outpipes_t outpipes;
|
|
|
|
// The pipe we are currently writing to.
|
|
zmq::pipe_t *current_out;
|
|
|
|
// If true, more outgoing message parts are expected.
|
|
bool more_out;
|
|
|
|
// Routing IDs are generated. It's a simple increment and wrap-over
|
|
// algorithm. This value is the next ID to use (if not used already).
|
|
uint32_t next_rid;
|
|
|
|
stream_t (const stream_t&);
|
|
const stream_t &operator = (const stream_t&);
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|