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/* -*- c++ -*- */
/*
* Copyright 2012 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_BLOCKS_FILE_META_SINK_IMPL_H
#define INCLUDED_BLOCKS_FILE_META_SINK_IMPL_H
#include <gnuradio/blocks/file_meta_sink.h>
#include <pmt/pmt.h>
using namespace pmt;
namespace gr {
namespace blocks {
class file_meta_sink_impl : public file_meta_sink
{
private:
enum meta_state_t { STATE_INLINE = 0, STATE_DETACHED };
const size_t d_itemsize;
double d_samp_rate;
const double d_relative_rate;
const size_t d_max_seg_size;
size_t d_total_seg_size;
pmt_t d_header;
pmt_t d_extra;
size_t d_extra_size;
bool d_updated;
bool d_unbuffered;
FILE *d_new_fp, *d_new_hdr_fp;
FILE *d_fp, *d_hdr_fp;
meta_state_t d_state;
protected:
void write_header(FILE* fp, pmt_t header, pmt_t extra);
void update_header(pmt_t key, pmt_t value);
void update_last_header();
void update_last_header_inline();
void update_last_header_detached();
void write_and_update();
void update_rx_time();
bool _open(FILE** fp, const char* filename);
public:
file_meta_sink_impl(size_t itemsize,
const std::string& filename,
double samp_rate = 1,
double relative_rate = 1,
gr_file_types type = GR_FILE_FLOAT,
bool complex = true,
size_t max_segment_size = 1000000,
pmt::pmt_t extra_dict = pmt::make_dict(),
bool detached_header = false);
~file_meta_sink_impl();
bool open(const std::string& filename);
void close();
void do_update();
void set_unbuffered(bool unbuffered) { d_unbuffered = unbuffered; }
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_SINK_IMPL_H */
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