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//
// Copyright 2019 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#ifndef INCLUDED_DPDK_SIMPLE_HPP
#define INCLUDED_DPDK_SIMPLE_HPP
#include <uhd/utils/noncopyable.hpp>
#include <uhdlib/transport/dpdk_common.hpp>
namespace uhd { namespace transport {
class dpdk_simple : uhd::noncopyable
{
public:
typedef boost::shared_ptr<dpdk_simple> sptr;
virtual ~dpdk_simple(void) = 0;
/*!
* Make a new connected dpdk transport:
* This transport is for sending and receiving
* between this host and a single endpoint.
* The primary usage for this transport will be control transactions.
*
* The address must be an ipv4 address.
* The port must be a number.
*
* \param addr a string representing the destination address
* \param port a string representing the destination port
*/
static sptr make_connected(struct uhd_dpdk_ctx &ctx,
const std::string &addr, const std::string &port);
/*!
* Make a new broadcasting dpdk transport:
* This transport can send broadcast datagrams
* and receive datagrams from multiple sources.
* The primary usage for this transport will be to discover devices.
*
* The address must be an ipv4 address.
* The port must be a number.
*
* \param addr a string representing the destination address
* \param port a string representing the destination port
*/
static sptr make_broadcast(struct uhd_dpdk_ctx &ctx,
const std::string &addr, const std::string &port);
/*!
* Request a single send buffer of specified size.
*
* \param buf a pointer to place to write buffer location
* \return the maximum length of the buffer in Bytes
*/
virtual size_t get_tx_buf(void** buf) = 0;
/*!
* Send and release outstanding buffer
*
* \param number of bytes sent (releases buffer if sent)
*/
virtual size_t send(size_t length) = 0;
/*!
* Receive a single packet.
* Buffer provided by transport (must be freed).
*
* \param buf a pointer to place to write buffer location
* \param timeout the timeout in seconds
* \return the number of bytes received or zero on timeout
*/
virtual size_t recv(void **buf, double timeout = 0.1) = 0;
/*!
* Return/free receive buffer
*/
virtual void put_rx_buf(void) = 0;
/*!
* Get the last IP address as seen by recv().
* Only use this with the broadcast socket.
*/
virtual std::string get_recv_addr(void) = 0;
/*!
* Get the IP address for the destination
*/
virtual std::string get_send_addr(void) = 0;
};
}} // namespace uhd::transport
#endif /* INCLUDED_DPDK_SIMPLE_HPP */
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