mirror of
https://github.com/zeromq/libzmq.git
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129 lines
3.3 KiB
C++
129 lines
3.3 KiB
C++
/*
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Copyright (c) 2007-2010 iMatix Corporation
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This file is part of 0MQ.
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0MQ is free software; you can redistribute it and/or modify it under
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the terms of the Lesser GNU General Public License as published by
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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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0MQ is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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Lesser GNU General Public License for more details.
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You should have received a copy of the Lesser GNU 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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#include "platform.hpp"
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#if defined ZMQ_HAVE_OPENPGM
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#ifdef ZMQ_HAVE_WINDOWS
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#include "windows.hpp"
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#endif
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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 "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 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 (class 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 (class io_thread_t *io_thread_, struct i_inout *inout_);
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void unplug ();
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void terminate ();
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void activate_in ();
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void activate_out ();
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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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// RX timeout timer ID.
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enum {rx_timer_id = 0xa1};
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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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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,
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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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// Parent session.
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i_inout *inout;
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// Most recently used decoder.
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decoder_t *mru_decoder;
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// Number of bytes not consumed by the decoder due to pipe overflow.
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size_t pending_bytes;
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// Pointer to data still waiting to be processed by the decoder.
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unsigned char *pending_ptr;
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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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void 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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