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/* -*- c++ -*- */
/*
* Copyright 2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifndef INCLUDED_BLOCKS_FILE_META_SOURCE_IMPL_H
#define INCLUDED_BLOCKS_FILE_META_SOURCE_IMPL_H
#include <gnuradio/blocks/file_meta_source.h>
#include <gnuradio/tags.h>
#include <gnuradio/thread/thread.h>
#include <pmt/pmt.h>
#include <gnuradio/blocks/file_meta_sink.h>
using namespace pmt;
namespace gr {
namespace blocks {
class file_meta_source_impl : public file_meta_source
{
private:
enum meta_state_t { STATE_INLINE = 0, STATE_DETACHED };
size_t d_itemsize;
double d_samp_rate;
pmt_t d_time_stamp;
size_t d_seg_size;
bool d_updated;
const bool d_repeat;
FILE *d_new_fp, *d_new_hdr_fp;
FILE *d_fp, *d_hdr_fp;
meta_state_t d_state;
std::vector<tag_t> d_tags;
protected:
bool _open(FILE** fp, const char* filename);
bool read_header(pmt_t& hdr, pmt_t& extras);
void parse_header(pmt_t hdr, uint64_t offset, std::vector<tag_t>& tags);
void parse_extras(pmt_t extras, uint64_t offset, std::vector<tag_t>& tags);
public:
file_meta_source_impl(const std::string& filename,
bool repeat = false,
bool detached_header = false,
const std::string& hdr_filename = "");
~file_meta_source_impl();
bool open(const std::string& filename, const std::string& hdr_filename = "");
void close();
void do_update();
int work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items);
};
} /* namespace blocks */
} /* namespace gr */
#endif /* INCLUDED_BLOCKS_FILE_META_SOURCE_IMPL_H */
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