/usr/include/gnuradio/blocks/delay.h is in gnuradio-dev 3.7.10.1-2+b3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | /* -*- c++ -*- */
/*
* Copyright 2007,2012-2013 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_BLOCKS_DELAY_H
#define INCLUDED_BLOCKS_DELAY_H
#include <gnuradio/blocks/api.h>
#include <gnuradio/block.h>
namespace gr {
namespace blocks {
/*!
* \brief delay the input by a certain number of samples
* \ingroup misc_blk
*
* Positive delays insert zero items at the beginning of the stream.
* Negative delays discard items from the stream.
*
* You cannot initialize this block with a negative delay,
* however. That leads to a causality issue with the buffers when
* they are initialized. If you need to negetively delay one path,
* then put the positive delay on the other path instead.
*/
class BLOCKS_API delay : virtual public block
{
public:
// gr::blocks::delay::sptr
typedef boost::shared_ptr<delay> sptr;
/*!
* \brief Make a delay block.
* \param itemsize size of the data items.
* \param delay number of samples to delay stream (>= 0).
*/
static sptr make(size_t itemsize, int delay);
virtual int dly() const = 0;
/*!
* \brief Reset the delay.
* \param d change the delay value. This can be a positive or
* negative value.
*/
virtual void set_dly(int d) = 0;
};
} /* namespace blocks */
} /* namespace gr */
#endif /* INCLUDED_BLOCKS_DELAY_H */
|