//
// Copyright 2016 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//

#ifndef INCLUDED_LIBUHD_RFNOC_GRAPH_HPP
#define INCLUDED_LIBUHD_RFNOC_GRAPH_HPP

#include <uhd/rfnoc/block_id.hpp>
#include <uhd/types/sid.hpp>
#include <uhd/utils/noncopyable.hpp>

namespace uhd { namespace rfnoc {

class graph : uhd::noncopyable
{
public:
    typedef boost::shared_ptr<uhd::rfnoc::graph> sptr;

    /*! Connect a RFNOC block with block ID \p src_block to another with block ID \p
     * dst_block.
     *
     * This will:
     * - Check if this connection is valid (IO signatures, see if types match)
     * - Configure the flow control for the blocks
     * - Configure SID for the upstream block
     * - Register the upstream block in the downstream block
     */
    virtual void connect(const block_id_t& src_block,
        size_t src_block_port,
        const block_id_t& dst_block,
        size_t dst_block_port,
        const size_t pkt_size = 0) = 0;

    /*! Shorthand for connect().
     *
     * Using default ports for both source and destination.
     */
    virtual void connect(const block_id_t& src_block, const block_id_t& dst_block) = 0;

    /*! Anonymous connection.
     *
     * Danger, danger. You use this, you know what you're doing.
     *
     * \param src_block Source block ID
     * \param src_block_port Source block port
     * \param dst_sid SID to route traffic to
     * \param buf_size_dst_bytes Destination window buffer in bytes
     * \param pkt_size Hint what the packet size over this link will be
     */
    virtual void connect_src(const block_id_t& src_block,
        const size_t src_block_port,
        const uhd::sid_t dst_sid,
        const size_t buf_size_dst_bytes,
        const size_t pkt_size) = 0;

    /*! Anonymous connection
     *
     * Danger, danger. You use this, you know what you're doing.
     *
     * \param sink_block Sink block ID
     * \param dst_block_port Destination (sink) block port
     * \param bytes_per_ack Flow control frequency in bytes
     */
    virtual void connect_sink(const block_id_t& sink_block,
        const size_t dst_block_port,
        const size_t bytes_per_ack) = 0;

    virtual std::string get_name() const = 0;
};

}}; // namespace uhd::rfnoc

#endif /* INCLUDED_LIBUHD_RFNOC_GRAPH_HPP */
