diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2013-04-17 13:43:52 -0400 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2013-04-29 14:52:56 -0400 |
| commit | f3e2e07201c50033bf6c9d0c6a6f068557b4f17f (patch) | |
| tree | 140b3c2d20a951ffd4abd564c3378ee2e2f9fc7c /gnuradio-runtime/lib/sync_block.cc | |
| parent | 35303ae975a5b1bdecc2492bc96e2b8e89b62a3d (diff) | |
runtime: converting runtime core to gr namespace, gnuradio include dir.
Diffstat (limited to 'gnuradio-runtime/lib/sync_block.cc')
| -rw-r--r-- | gnuradio-runtime/lib/sync_block.cc | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/gnuradio-runtime/lib/sync_block.cc b/gnuradio-runtime/lib/sync_block.cc new file mode 100644 index 0000000000..e00b80c79e --- /dev/null +++ b/gnuradio-runtime/lib/sync_block.cc @@ -0,0 +1,72 @@ +/* -*- 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. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <gnuradio/sync_block.h> + +namespace gr { + + sync_block::sync_block(const std::string &name, + io_signature::sptr input_signature, + io_signature::sptr output_signature) + : block(name, input_signature, output_signature) + { + set_fixed_rate(true); + } + + void + sync_block::forecast(int noutput_items, + gr_vector_int &ninput_items_required) + { + unsigned ninputs = ninput_items_required.size(); + for(unsigned i = 0; i < ninputs; i++) + ninput_items_required[i] = fixed_rate_noutput_to_ninput(noutput_items); + } + + int + sync_block::fixed_rate_noutput_to_ninput(int noutput_items) + { + return noutput_items + history() - 1; + } + + int + sync_block::fixed_rate_ninput_to_noutput(int ninput_items) + { + return std::max(0, ninput_items - (int)history() + 1); + } + + int + sync_block::general_work(int noutput_items, + gr_vector_int &ninput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) + { + int r = work(noutput_items, input_items, output_items); + if(r > 0) + consume_each(r); + return r; + } + +} /* namespace gr */ |