sub_msg_source.h

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/* -*- c++ -*- */
/*
 * Copyright 2013,2014 Free Software Foundation, Inc.
 *
 * This file is part of GNU Radio.
 *
 * This is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3, or (at your option)
 * any later version.
 *
 * This software 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this software; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street,
 * Boston, MA 02110-1301, USA.
 */
 
#ifndef INCLUDED_ZEROMQ_SUB_MSG_SOURCE_H
#define INCLUDED_ZEROMQ_SUB_MSG_SOURCE_H
 
#include <gnuradio/block.h>
#include <gnuradio/zeromq/api.h>
 
namespace gr {
namespace zeromq {
 
/*!
 * \brief Receive messages on ZMQ SUB socket and output async messages
 * \ingroup zeromq
 *
 * \details
 * This block will connect to a ZMQ PUB socket, then convert them
 * to outgoing async messages
 */
class ZEROMQ_API sub_msg_source : virtual public gr::block
{
public:
    typedef boost::shared_ptr<sub_msg_source> sptr;
 
    /*!
     * \brief Return a shared_ptr to a new instance of gr::zeromq::sub_msg_source.
     *
     * \param address  ZMQ socket address specifier
     * \param timeout  Receive timeout in milliseconds, default is 100ms, 1us increments
     * \param bind     If true this block will bind to the address, otherwise it will
     * connect; the default is to connect
     *
     */
    static sptr make(char* address, int timeout = 100, bool bind = false);
 
    /*!
     * \brief Return a std::string of ZMQ_LAST_ENDPOINT from the underlying ZMQ socket.
     */
    virtual std::string last_endpoint() = 0;
};
 
} // namespace zeromq
} // namespace gr
 
#endif /* INCLUDED_ZEROMQ_SUB_MSG_SOURCE_H */