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+/*
+ Copyright (c) 2007-2013 Contributors as noted in the AUTHORS file
+
+ This file is part of 0MQ.
+
+ 0MQ 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.
+
+ 0MQ 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_PGM_SENDER_HPP_INCLUDED__
+#define __ZMQ_PGM_SENDER_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_OPENPGM
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include "stdint.hpp"
+#include "io_object.hpp"
+#include "i_engine.hpp"
+#include "options.hpp"
+#include "pgm_socket.hpp"
+#include "v1_encoder.hpp"
+#include "msg.hpp"
+
+namespace zmq
+{
+
+ class io_thread_t;
+ class session_base_t;
+
+ class pgm_sender_t : public io_object_t, public i_engine
+ {
+
+ public:
+
+ pgm_sender_t (zmq::io_thread_t *parent_, const options_t &options_);
+ ~pgm_sender_t ();
+
+ int init (bool udp_encapsulation_, const char *network_);
+
+ // i_engine interface implementation.
+ void plug (zmq::io_thread_t *io_thread_,
+ zmq::session_base_t *session_);
+ void terminate ();
+ void restart_input ();
+ void restart_output ();
+ void zap_msg_available () {}
+
+ // i_poll_events interface implementation.
+ void in_event ();
+ void out_event ();
+ void timer_event (int token);
+
+ private:
+
+ // Unplug the engine from the session.
+ void unplug ();
+
+ // TX and RX timeout timer ID's.
+ enum {tx_timer_id = 0xa0, rx_timer_id = 0xa1};
+
+ // Timers are running.
+ bool has_tx_timer;
+ bool has_rx_timer;
+
+ session_base_t *session;
+
+ // Message encoder.
+ v1_encoder_t encoder;
+
+ msg_t msg;
+
+ // Keeps track of message boundaries.
+ bool more_flag;
+
+ // PGM socket.
+ pgm_socket_t pgm_socket;
+
+ // Socket options.
+ options_t options;
+
+ // Poll handle associated with PGM socket.
+ handle_t handle;
+ handle_t uplink_handle;
+ handle_t rdata_notify_handle;
+ handle_t pending_notify_handle;
+
+ // Output buffer from pgm_socket.
+ unsigned char *out_buffer;
+
+ // Output buffer size.
+ size_t out_buffer_size;
+
+ // Number of bytes in the buffer to be written to the socket.
+ // If zero, there are no data to be sent.
+ size_t write_size;
+
+ pgm_sender_t (const pgm_sender_t&);
+ const pgm_sender_t &operator = (const pgm_sender_t&);
+ };
+
+}
+#endif
+
+#endif