GNU Radio Manual and C++ API Reference  3.7.9.2
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interleaver_fifo.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2002 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 _INTERLEAVER_FIFO_H_
24 #define _INTERLEAVER_FIFO_H_
25 
26 
28 #include <string.h>
29 
30 /*!
31  * \brief template class for interleaver fifo
32  */
33 
34 template<class symbol_type>
36  public:
37 
38  interleaver_fifo (unsigned int size);
40 
41  //! reset interleaver (flushes contents and resets commutator)
42  void reset ();
43 
44  //! stuff a symbol into the fifo and return the oldest
45  symbol_type stuff (symbol_type input){
46  if (m_size == 0)
47  return input;
48 
49  symbol_type retval = m_fifo[m_position];
50  m_fifo[m_position] = input;
51  m_position++;
52  if (m_position >= m_size)
53  m_position = 0;
54 
55  return retval;
56  }
57 
58 protected:
59  unsigned int m_size;
60  unsigned int m_position;
61  symbol_type *m_fifo;
62 };
63 
64 template<class symbol_type>
66 {
67  m_size = size;
68  m_position = 0;
69  m_fifo = new symbol_type[size];
70  memset (m_fifo, 0, m_size * sizeof (symbol_type));
71 }
72 
73 template<class symbol_type>
75 {
76  delete [] m_fifo;
77 }
78 
79 template<class symbol_type> void
81 {
82  m_position = 0;
83  memset (m_fifo, 0, m_size * sizeof (symbol_type));
84 }
85 
86 #endif /* _INTERLEAVER_FIFO_H_ */
void reset()
reset interleaver (flushes contents and resets commutator)
Definition: interleaver_fifo.h:80
interleaver_fifo(unsigned int size)
Definition: interleaver_fifo.h:65
template class for interleaver fifo
Definition: interleaver_fifo.h:35
~interleaver_fifo()
Definition: interleaver_fifo.h:74
unsigned int m_position
Definition: interleaver_fifo.h:60
unsigned int m_size
Definition: interleaver_fifo.h:59
symbol_type * m_fifo
Definition: interleaver_fifo.h:61
symbol_type stuff(symbol_type input)
stuff a symbol into the fifo and return the oldest
Definition: interleaver_fifo.h:45