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/* -*- c++ -*- */
/*
* Copyright 2002 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 2, 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 _INTERLEAVER_FIFO_H_
#define _INTERLEAVER_FIFO_H_
#include <interleaver_fifo.h>
#include <string.h>
/*!
* \brief template class for interleaver fifo
*/
template<class symbol_type>
class interleaver_fifo {
public:
interleaver_fifo (unsigned int size);
~interleaver_fifo ();
//! reset interleaver (flushes contents and resets commutator)
void reset ();
//! stuff a symbol into the fifo and return the oldest
symbol_type stuff (symbol_type input){
if (m_size == 0)
return input;
symbol_type retval = m_fifo[m_position];
m_fifo[m_position] = input;
m_position++;
if (m_position >= m_size)
m_position = 0;
return retval;
}
protected:
unsigned int m_size;
unsigned int m_position;
symbol_type *m_fifo;
};
template<class symbol_type>
interleaver_fifo<symbol_type>::interleaver_fifo (unsigned int size)
{
m_size = size;
m_position = 0;
m_fifo = new symbol_type[size];
memset (m_fifo, 0, m_size * sizeof (symbol_type));
}
template<class symbol_type>
interleaver_fifo<symbol_type>::~interleaver_fifo ()
{
delete [] m_fifo;
}
template<class symbol_type> void
interleaver_fifo<symbol_type>::reset ()
{
m_position = 0;
memset (m_fifo, 0, m_size * sizeof (symbol_type));
}
#endif /* _INTERLEAVER_FIFO_H_ */
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