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01371398e9
Solution: add monitor event socket option
146 lines
4.2 KiB
C++
146 lines
4.2 KiB
C++
/*
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Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
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This file is part of libzmq, the ZeroMQ core engine in C++.
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libzmq is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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As a special exception, the Contributors give you permission to link
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this library with independent modules to produce an executable,
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regardless of the license terms of these independent modules, and to
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copy and distribute the resulting executable under terms of your choice,
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provided that you also meet, for each linked independent module, the
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terms and conditions of the license of that module. An independent
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module is a module which is not derived from or based on this library.
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If you modify this library, you must extend this exception to your
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version of the library.
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libzmq is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ZMQ_PGM_RECEIVER_HPP_INCLUDED__
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#define __ZMQ_PGM_RECEIVER_HPP_INCLUDED__
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#if defined ZMQ_HAVE_OPENPGM
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#include <map>
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#include <algorithm>
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#include "io_object.hpp"
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#include "i_engine.hpp"
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#include "options.hpp"
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#include "v1_decoder.hpp"
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#include "pgm_socket.hpp"
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namespace zmq
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{
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class io_thread_t;
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class session_base_t;
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class pgm_receiver_t : public io_object_t, public i_engine
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{
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public:
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pgm_receiver_t (zmq::io_thread_t *parent_, const options_t &options_);
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~pgm_receiver_t ();
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int init (bool udp_encapsulation_, const char *network_);
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// i_engine interface implementation.
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void plug (zmq::io_thread_t *io_thread_, zmq::session_base_t *session_);
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void terminate ();
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bool restart_input ();
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void restart_output ();
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void zap_msg_available () {}
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const endpoint_uri_pair_t &get_endpoint () const;
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// i_poll_events interface implementation.
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void in_event ();
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void timer_event (int token);
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private:
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// Unplug the engine from the session.
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void unplug ();
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// Decode received data (inpos, insize) and forward decoded
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// messages to the session.
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int process_input (v1_decoder_t *decoder);
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// PGM is not able to move subscriptions upstream. Thus, drop all
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// the pending subscriptions.
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void drop_subscriptions ();
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// RX timeout timer ID.
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enum
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{
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rx_timer_id = 0xa1
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};
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const endpoint_uri_pair_t _empty_endpoint;
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// RX timer is running.
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bool has_rx_timer;
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// If joined is true we are already getting messages from the peer.
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// It it's false, we are getting data but still we haven't seen
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// beginning of a message.
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struct peer_info_t
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{
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bool joined;
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v1_decoder_t *decoder;
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};
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struct tsi_comp
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{
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bool operator() (const pgm_tsi_t <si, const pgm_tsi_t &rtsi) const
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{
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uint32_t ll[2], rl[2];
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memcpy (ll, <si, sizeof (ll));
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memcpy (rl, &rtsi, sizeof (rl));
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return (ll[0] < rl[0]) || (ll[0] == rl[0] && ll[1] < rl[1]);
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}
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};
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typedef std::map<pgm_tsi_t, peer_info_t, tsi_comp> peers_t;
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peers_t peers;
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// PGM socket.
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pgm_socket_t pgm_socket;
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// Socket options.
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options_t options;
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// Associated session.
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zmq::session_base_t *session;
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const pgm_tsi_t *active_tsi;
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// Number of bytes not consumed by the decoder due to pipe overflow.
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size_t insize;
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// Pointer to data still waiting to be processed by the decoder.
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const unsigned char *inpos;
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// Poll handle associated with PGM socket.
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handle_t socket_handle;
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// Poll handle associated with engine PGM waiting pipe.
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handle_t pipe_handle;
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pgm_receiver_t (const pgm_receiver_t &);
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const pgm_receiver_t &operator= (const pgm_receiver_t &);
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};
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}
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#endif
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#endif
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