GNU Radio 3.6.4 C++ API
gr_delay.h
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/* -*- c++ -*- */
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/*
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* Copyright 2007,2012 Free Software Foundation, Inc.
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*
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* This file is part of GNU Radio
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*
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* GNU Radio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* GNU Radio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef INCLUDED_GR_DELAY_H
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#define INCLUDED_GR_DELAY_H
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#include <
gr_core_api.h
>
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#include <
gr_block.h
>
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#include <
gruel/thread.h
>
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class
gr_delay
;
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typedef
boost::shared_ptr<gr_delay>
gr_delay_sptr
;
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GR_CORE_API
gr_delay_sptr
gr_make_delay
(
size_t
itemsize,
int
delay
);
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/*!
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* \brief delay the input by a certain number of samples
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* \ingroup misc_blk
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*/
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class
GR_CORE_API
gr_delay
:
public
gr_block
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{
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friend
GR_CORE_API
gr_delay_sptr
gr_make_delay
(
size_t
itemsize,
int
delay);
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gr_delay
(
size_t
itemsize,
int
delay);
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void
forecast
(
int
noutput_items,
gr_vector_int
&ninput_items_required);
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size_t
d_itemsize;
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int
d_delta;
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gruel::mutex
d_mutex_delay;
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public
:
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int
delay
()
const
{
return
history
()-1; }
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void
set_delay (
int
delay);
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int
general_work
(
int
noutput_items,
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gr_vector_int
&ninput_items,
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gr_vector_const_void_star
&input_items,
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gr_vector_void_star
&output_items);
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};
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#endif
gnuradio
gnuradio-core
src
lib
general
gr_delay.h
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