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gr_simple_framer.h

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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2004 Free Software Foundation, Inc.
00004  * 
00005  * This file is part of GNU Radio
00006  * 
00007  * GNU Radio is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 2, or (at your option)
00010  * any later version.
00011  * 
00012  * GNU Radio is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  * 
00017  * You should have received a copy of the GNU General Public License
00018  * along with GNU Radio; see the file COPYING.  If not, write to
00019  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00020  * Boston, MA 02111-1307, USA.
00021  */
00022 
00023 #ifndef INCLUDED_GR_SIMPLE_FRAMER_H
00024 #define INCLUDED_GR_SIMPLE_FRAMER_H
00025 
00026 #include <gr_block.h>
00027 
00028 class gr_simple_framer;
00029 typedef boost::shared_ptr<gr_simple_framer> gr_simple_framer_sptr;
00030 
00031 gr_simple_framer_sptr gr_make_simple_framer (int payload_bytesize);
00032 
00037 class gr_simple_framer : public gr_block
00038 {
00039   int   d_seqno;
00040   int   d_payload_bytesize;
00041   int   d_input_block_size;     // bytes
00042   int   d_output_block_size;    // bytes
00043 
00044   friend gr_simple_framer_sptr gr_make_simple_framer (int payload_bytesize);
00045   gr_simple_framer (int payload_bytesize);
00046 
00047  public:
00048   void forecast (int noutput_items,
00049                  gr_vector_int &ninput_items_required);
00050 
00051   int general_work (int noutput_items,
00052                     gr_vector_int &ninput_items,
00053                     gr_vector_const_void_star &input_items,
00054                     gr_vector_void_star &output_items);
00055 };
00056 
00057 
00058 #endif /* INCLUDED_GR_SIMPLE_FRAMER_H */

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