GNU Radio C++ API
gr_sync_block.h
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/* -*- c++ -*- */
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/*
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* Copyright 2004 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_SYNC_BLOCK_H
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#define INCLUDED_GR_SYNC_BLOCK_H
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#include <
gr_core_api.h
>
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#include <
gr_block.h
>
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/*!
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* \brief synchronous 1:1 input to output with history
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* \ingroup base_blk
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*
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* Override work to provide the signal processing implementation.
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*/
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class
GR_CORE_API
gr_sync_block
:
public
gr_block
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{
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protected
:
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gr_sync_block
(
void
){}
//allows pure virtual interface sub-classes
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gr_sync_block
(
const
std::string &name,
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gr_io_signature_sptr
input_signature,
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gr_io_signature_sptr
output_signature);
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public
:
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/*!
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* \brief just like gr_block::general_work, only this arranges to call consume_each for you
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*
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* The user must override work to define the signal processing code
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*/
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virtual
int
work (
int
noutput_items,
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gr_vector_const_void_star
&input_items,
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gr_vector_void_star
&output_items) = 0;
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// gr_sync_block overrides these to assist work
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void
forecast
(
int
noutput_items,
gr_vector_int
&ninput_items_required);
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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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int
fixed_rate_ninput_to_noutput
(
int
ninput);
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int
fixed_rate_noutput_to_ninput
(
int
noutput);
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};
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#endif
/* INCLUDED_GR_SYNC_BLOCK_H */
gnuradio-core
src
lib
runtime
gr_sync_block.h
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