crc_append_impl.h

/* -*- c++ -*- */
/*
 * Copyright 2022 Daniel Estevez <daniel@destevez.net>.
 *
 * This file is part of GNU Radio
 *
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 */

#ifndef INCLUDED_DIGITAL_CRC_APPEND_IMPL_H
#define INCLUDED_DIGITAL_CRC_APPEND_IMPL_H

#include <gnuradio/digital/crc.h>
#include <gnuradio/digital/crc_append.h>

namespace gr {
namespace digital {

class crc_append_impl : public crc_append
{
private:
    unsigned d_num_bits;
    bool d_swap_endianness;
    crc d_crc;
    unsigned d_header_bytes;

public:
    crc_append_impl(unsigned num_bits,
                    uint64_t poly,
                    uint64_t initial_value,
                    uint64_t final_xor,
                    bool input_reflected,
                    bool result_reflected,
                    bool swap_endianness,
                    unsigned skip_header_bytes);
    ~crc_append_impl();

    void forecast(int noutput_items, gr_vector_int& ninput_items_required);

    int general_work(int noutput_items,
                     gr_vector_int& ninput_items,
                     gr_vector_const_void_star& input_items,
                     gr_vector_void_star& output_items);
    void msg_handler(pmt::pmt_t pmt_msg);
};

} // namespace digital
} // namespace gr

#endif /* INCLUDED_DIGITAL_CRC_APPEND_IMPL_H */