1 /* -*- c++ -*- */ 2 /* 3 * Copyright 2012 Free Software Foundation, Inc. 4 * 5 * This file is part of GNU Radio 6 * 7 * GNU Radio is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 3, or (at your option) 10 * any later version. 11 * 12 * GNU Radio is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with GNU Radio; see the file COPYING. If not, write to 19 * the Free Software Foundation, Inc., 51 Franklin Street, 20 * Boston, MA 02110-1301, USA. 21 */ 22 23 #ifndef INCLUDED_BLOCKS_FILE_META_SINK_IMPL_H 24 #define INCLUDED_BLOCKS_FILE_META_SINK_IMPL_H 25 26 #include <gnuradio/blocks/file_meta_sink.h> 27 #include <pmt/pmt.h> 28 29 using namespace pmt; 30 31 namespace gr { 32 namespace blocks { 33 34 class file_meta_sink_impl : public file_meta_sink 35 { 36 private: 37 enum meta_state_t { STATE_INLINE = 0, STATE_DETACHED }; 38 39 size_t d_itemsize; 40 double d_samp_rate; 41 double d_relative_rate; 42 size_t d_max_seg_size; 43 size_t d_total_seg_size; 44 pmt_t d_header; 45 pmt_t d_extra; 46 size_t d_extra_size; 47 bool d_updated; 48 bool d_unbuffered; 49 50 FILE *d_new_fp, *d_new_hdr_fp; 51 FILE *d_fp, *d_hdr_fp; 52 meta_state_t d_state; 53 54 protected: 55 void write_header(FILE* fp, pmt_t header, pmt_t extra); 56 void update_header(pmt_t key, pmt_t value); 57 void update_last_header(); 58 void update_last_header_inline(); 59 void update_last_header_detached(); 60 void write_and_update(); 61 void update_rx_time(); 62 63 bool _open(FILE** fp, const char* filename); 64 65 public: 66 file_meta_sink_impl(size_t itemsize, 67 const std::string& filename, 68 double samp_rate = 1, 69 double relative_rate = 1, 70 gr_file_types type = GR_FILE_FLOAT, 71 bool complex = true, 72 size_t max_segment_size = 1000000, 73 pmt::pmt_t extra_dict = pmt::make_dict(), 74 bool detached_header = false); 75 ~file_meta_sink_impl(); 76 77 bool open(const std::string& filename); 78 void close(); 79 void do_update(); 80 set_unbuffered(bool unbuffered)81 void set_unbuffered(bool unbuffered) { d_unbuffered = unbuffered; } 82 83 int work(int noutput_items, 84 gr_vector_const_void_star& input_items, 85 gr_vector_void_star& output_items); 86 }; 87 88 } /* namespace blocks */ 89 } /* namespace gr */ 90 91 #endif /* INCLUDED_BLOCKS_FILE_META_SINK_IMPL_H */ 92