diff options
| author | Johnathan Corgan <johnathan@corganlabs.com> | 2013-03-15 09:57:31 -0700 |
|---|---|---|
| committer | Johnathan Corgan <johnathan@corganlabs.com> | 2013-03-15 09:57:31 -0700 |
| commit | e965a5bb209ad46a509ccd21f393667fd69d95f9 (patch) | |
| tree | 40d683ef8f80980f12eac6cfe7f3423c49b45f87 /gr-digital/include/digital_crc32_bb.h | |
| parent | 2bf9c4cb4b0b426690f353fc1662a13e70c0d5e0 (diff) | |
| parent | 27990ca9e236931e39a830e48f0a1efe13ec085f (diff) | |
Merge branch 'ofdm-master' into ofdm-next
Added fixups for next branch changes
Conflicts:
CMakeLists.txt
gnuradio-core/src/lib/io/gr_message_sink.cc
gnuradio-core/src/lib/io/gr_message_sink.h
gnuradio-core/src/lib/io/gr_message_sink.i
gnuradio-core/src/lib/io/gr_message_source.cc
gnuradio-core/src/lib/io/gr_message_source.h
gnuradio-core/src/lib/io/gr_message_source.i
gr-blocks/CMakeLists.txt
gr-digital/CMakeLists.txt
gr-digital/grc/digital_block_tree.xml
gr-digital/include/digital/CMakeLists.txt
gr-digital/include/digital_ofdm_cyclic_prefixer.h
gr-digital/lib/CMakeLists.txt
gr-digital/lib/digital_ofdm_cyclic_prefixer.cc
gr-digital/lib/ofdm_cyclic_prefixer_impl.h
gr-digital/python/CMakeLists.txt
gr-digital/swig/CMakeLists.txt
gr-digital/swig/digital_swig.i
Diffstat (limited to 'gr-digital/include/digital_crc32_bb.h')
| -rw-r--r-- | gr-digital/include/digital_crc32_bb.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/gr-digital/include/digital_crc32_bb.h b/gr-digital/include/digital_crc32_bb.h new file mode 100644 index 0000000000..efbf2d545a --- /dev/null +++ b/gr-digital/include/digital_crc32_bb.h @@ -0,0 +1,67 @@ +/* -*- 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_DIGITAL_CRC32_BB_H +#define INCLUDED_DIGITAL_CRC32_BB_H + +#include <digital/api.h> +#include <gr_tagged_stream_block.h> + +class digital_crc32_bb; + +typedef boost::shared_ptr<digital_crc32_bb> digital_crc32_bb_sptr; + +DIGITAL_API digital_crc32_bb_sptr digital_make_crc32_bb (bool check=false, const std::string& lengthtagname="packet_len"); + +/*! + * \brief Byte-stream CRC block + * \ingroup digital + * + * Input: stream of bytes, which form a packet. The first byte of the packet + * has a tag with key "length" and the value being the number of bytes in the + * packet. + * + * Output: The same bytes as incoming, but trailing a CRC32 of the packet. + * The tag is re-set to the new length. + */ +class DIGITAL_API digital_crc32_bb : public gr_tagged_stream_block +{ + private: + friend DIGITAL_API digital_crc32_bb_sptr digital_make_crc32_bb (bool check, const std::string& lengthtagname); + + bool d_check; + + digital_crc32_bb(bool check, const std::string& lengthtagname); + + public: + ~digital_crc32_bb(); + + int calculate_output_stream_length(const std::vector<int> &ninput_items); + + int work (int noutput_items, + gr_vector_int &ninput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif /* INCLUDED_DIGITAL_CRC32_BB_H */ + |