/* -*- c++ -*- */
/*
 * Copyright 2004,2013 Free Software Foundation, Inc.
 *
 * This file is part of GNU Radio
 *
 * GNU Radio 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.
 *
 * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street,
 * Boston, MA 02110-1301, USA.
 */

#ifndef INCLUDED_GR_FILE_DESCRIPTOR_SOURCE_IMPL_H
#define INCLUDED_GR_FILE_DESCRIPTOR_SOURCE_IMPL_H

#include <gnuradio/blocks/file_descriptor_source.h>

namespace gr {
namespace blocks {

class file_descriptor_source_impl : public file_descriptor_source
{
private:
    size_t d_itemsize;
    int d_fd;
    bool d_repeat;

    unsigned char* d_residue;
    unsigned long d_residue_len;

protected:
    int read_items(char* buf, int nitems);
    int handle_residue(char* buf, int nbytes_read);
    void flush_residue() { d_residue_len = 0; }

public:
    file_descriptor_source_impl(size_t itemsize, int fd, bool repeat);
    ~file_descriptor_source_impl();

    int work(int noutput_items,
             gr_vector_const_void_star& input_items,
             gr_vector_void_star& output_items);
};

} /* namespace blocks */
} /* namespace gr */

#endif /* INCLUDED_GR_FILE_DESCRIPTOR_SOURCE_IMPL_H */
