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/* -*- c++ -*- */
/*
* Copyright 2007-2010,2013,2015 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifndef INCLUDED_GR_UDP_SOURCE_H
#define INCLUDED_GR_UDP_SOURCE_H
#include <gnuradio/blocks/api.h>
#include <gnuradio/sync_block.h>
namespace gr {
namespace blocks {
/*!
* \brief Read stream from an UDP socket.
* \ingroup networking_tools_blk
*/
class BLOCKS_API udp_source : virtual public sync_block
{
public:
// gr::blocks::udp_source::sptr
typedef std::shared_ptr<udp_source> sptr;
/*!
* \brief UDP Source Constructor
*
* \param itemsize The size (in bytes) of the item datatype
* \param host The name or IP address of the transmitting host; can be
* NULL, None, or "0.0.0.0" to allow reading from any
* interface on the host
* \param port The port number on which to receive data; use 0 to
* have the system assign an unused port number
* \param payload_size UDP payload size by default set to 1472 =
* (1500 MTU - (8 byte UDP header) - (20 byte IP header))
* \param eof Interpret zero-length packet as EOF (default: true)
*/
static sptr make(size_t itemsize,
const std::string& host,
int port,
int payload_size = 1472,
bool eof = true);
/*! \brief Change the connection to a new destination
*
* \param host The name or IP address of the receiving host; use
* NULL or None to break the connection without closing
* \param port Destination port to connect to on receiving host
*
* Calls disconnect() to terminate any current connection first.
*/
virtual void connect(const std::string& host, int port) = 0;
/*! \brief Cut the connection if we have one set up.
*/
virtual void disconnect() = 0;
/*! \brief return the PAYLOAD_SIZE of the socket */
virtual int payload_size() = 0;
/*! \brief return the port number of the socket */
virtual int get_port() = 0;
};
} /* namespace blocks */
} /* namespace gr */
#endif /* INCLUDED_GR_UDP_SOURCE_H */
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