GNU Radio Manual and C++ API Reference 3.7.14.0
The Free & Open Software Radio Ecosystem
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
34template <class symbol_type>
36{
37public:
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 {
47 if (m_size == 0)
48 return input;
49
50 symbol_type retval = m_fifo[m_position];
51 m_fifo[m_position] = input;
52 m_position++;
53 if (m_position >= m_size)
54 m_position = 0;
55
56 return retval;
57 }
58
59protected:
60 unsigned int m_size;
61 unsigned int m_position;
62 symbol_type* m_fifo;
63};
64
65template <class symbol_type>
67{
68 m_size = size;
69 m_position = 0;
70 m_fifo = new symbol_type[size];
71 memset(m_fifo, 0, m_size * sizeof(symbol_type));
72}
73
74template <class symbol_type>
76{
77 delete[] m_fifo;
78}
79
80template <class symbol_type>
82{
83 m_position = 0;
84 memset(m_fifo, 0, m_size * sizeof(symbol_type));
85}
86
87#endif /* _INTERLEAVER_FIFO_H_ */
template class for interleaver fifo
Definition: interleaver_fifo.h:36
void reset()
reset interleaver (flushes contents and resets commutator)
Definition: interleaver_fifo.h:81
symbol_type * m_fifo
Definition: interleaver_fifo.h:62
unsigned int m_position
Definition: interleaver_fifo.h:61
unsigned int m_size
Definition: interleaver_fifo.h:60
symbol_type stuff(symbol_type input)
stuff a symbol into the fifo and return the oldest
Definition: interleaver_fifo.h:45
~interleaver_fifo()
Definition: interleaver_fifo.h:75
interleaver_fifo(unsigned int size)
Definition: interleaver_fifo.h:66