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List: gnuradio-discuss
Subject: [Discuss-gnuradio] Calling public C++ function in OOT module using Python
From: Edwin Li <lbyhplby () gmail ! com>
Date: 2018-07-31 23:09:03
Message-ID: CA+qGr-Fo=YPmzAD6e-bAZYQGyM-abFUdFSTeFbxsz8j36L_rGw () mail ! gmail ! com
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Hi,
I've been trying to make a function in my OOT module public. The module is
called chaotic_prefix_bc.
I declare a pure virtual function called *Logistic_map()* in
chaotic_prefix_bc.h, and overload it in chaotic_prefix_bc_impl.h and
chaotic_prefix_bc_impl.cc.
When I call this function in a vector source(in GNURadio) using:
chaos.chaotic_prefix_bc(0.8,3.98,50,'len_tag_key').Logistic_map(0.8,3.98,50),
it says 'chaotic_prefix_bc_sptr' object has no attribute 'Logistic_map'.
I tried the make clean trick mentioned in the mailing list, but to no avail.
I attached my code below. Please help me~
Regards,
Edwin
[Attachment #5 (text/html)]
<div dir="ltr">Hi,<div><br></div><div>I've been trying to make a function in my \
OOT module public. The module is called chaotic_prefix_bc. </div><div>I declare a \
pure virtual function called <i><b>Logistic_map()</b></i> in chaotic_prefix_bc.h, and \
overload it in chaotic_prefix_bc_impl.h and chaotic_prefix_bc_impl.cc.</div><div>When \
I call this function in a vector source(in GNURadio) using: \
chaos.chaotic_prefix_bc(0.8,3.98,50,'len_tag_key').Logistic_map(0.8,3.98,50), \
it says 'chaotic_prefix_bc_sptr' object has no attribute \
'Logistic_map'. </div><div>I tried the make clean trick mentioned in the \
mailing list, but to no avail.</div><div>I attached my code below. Please help \
me~</div><div><br></div><div>Regards,</div><div>Edwin</div><div><br></div><div><br></div></div>
--000000000000b084fc057253aa63--
["chaotic_prefix_bc_impl.h" (text/x-chdr)]
/* -*- c++ -*- */
/*
* Copyright 2018 <+YOU OR YOUR COMPANY+>.
*
* This 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.
*
* This software 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 this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_CHAOS_CHAOTIC_PREFIX_BC_IMPL_H
#define INCLUDED_CHAOS_CHAOTIC_PREFIX_BC_IMPL_H
#include <chaos/chaotic_prefix_bc.h>
namespace gr {
namespace chaos {
class chaotic_prefix_bc_impl : public chaotic_prefix_bc
{
private:
float d_init;
float d_parameter;
unsigned int d_header_len;
// Nothing to declare in this block.
protected:
int calculate_output_stream_length(const gr_vector_int &ninput_items);
public:
chaotic_prefix_bc_impl(float init, float parameter, unsigned int header_len, \
const std::string &len_tag_key); ~chaotic_prefix_bc_impl();
std::vector<float> Logistic_map(float init, float parameter, unsigned int \
seq_len); // Where all the action really happens
int work(int noutput_items,
gr_vector_int &ninput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
};
} // namespace chaos
} // namespace gr
#endif /* INCLUDED_CHAOS_CHAOTIC_PREFIX_BC_IMPL_H */
["chaotic_prefix_bc_impl.cc" (text/x-c++src)]
/* -*- c++ -*- */
/*
* Copyright 2018 <+YOU OR YOUR COMPANY+>.
*
* This 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.
*
* This software 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 this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gnuradio/io_signature.h>
#include "chaotic_prefix_bc_impl.h"
namespace gr {
namespace chaos {
chaotic_prefix_bc::sptr
chaotic_prefix_bc::make(float init, float parameter, unsigned int header_len, \
const std::string &len_tag_key) {
return gnuradio::get_initial_sptr
(new chaotic_prefix_bc_impl(init, parameter, header_len, len_tag_key));
}
/*
* The private constructor
*/
chaotic_prefix_bc_impl::chaotic_prefix_bc_impl(float init, float parameter, \
unsigned int header_len, const std::string &len_tag_key) : \
gr::tagged_stream_block("chaotic_prefix_bc", gr::io_signature::make(1, 1, \
sizeof(char)),
gr::io_signature::make(1, 1, sizeof(gr_complex)), len_tag_key),
d_init(init),
d_parameter(parameter),
d_header_len(header_len)
{
set_tag_propagation_policy(TPP_DONT);// dont propagate tags
}
/*
* Our virtual destructor.
*/
chaotic_prefix_bc_impl::~chaotic_prefix_bc_impl()
{
}
std::vector<float> chaotic_prefix_bc_impl::Logistic_map(float init, float \
parameter, unsigned int seq_len) {
//float parameter=3.62;
std::vector<float> chaotic_seq;
chaotic_seq.push_back(init);
float x_nn;
float sum=d_init;
for (int i=1;i<seq_len;i++)
{
x_nn=parameter*chaotic_seq[i-1]*(1-chaotic_seq[i-1]);
// x_nn=0;
sum+=x_nn;
chaotic_seq.push_back(x_nn);
}
//normalize chaotic_seq
sum=sum/seq_len;
float maxabs=0;
for (int i=0;i<seq_len;i++)
{
chaotic_seq[i]=chaotic_seq[i]-sum;
if (std::abs(chaotic_seq[i])>maxabs)
{
maxabs=std::abs(chaotic_seq[i]);
}
}
for (int i=0;i<seq_len;i++)
{
chaotic_seq[i]=chaotic_seq[i]/maxabs;
}
return chaotic_seq;
}
int
chaotic_prefix_bc_impl::calculate_output_stream_length(const gr_vector_int \
&ninput_items) {
int noutput_items = d_header_len;
return noutput_items ;
}
int
chaotic_prefix_bc_impl::work (int noutput_items,
gr_vector_int &ninput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
const char *in = (const char *) input_items[0];
gr_complex *out = (gr_complex *) output_items[0];
std::vector<float> chaotic_float=Logistic_map(d_init, d_parameter, \
d_header_len); std::vector<gr_complex> chaotic_complex;
for (int i=0;i<d_header_len;i++)
{
chaotic_complex.push_back(gr_complex(chaotic_float[i],0));
}
//std::vector<gr_complex> *p=&chaotic_complex;
memcpy((void *)out,&chaotic_complex[0],d_header_len*sizeof(gr_complex));
out+=d_header_len;
// Do <+signal processing+>
noutput_items=d_header_len;
// Tell runtime system how many output items we produced.
return noutput_items;
}
} /* namespace chaos */
} /* namespace gr */
["chaotic_prefix_bc.h" (text/x-chdr)]
/* -*- c++ -*- */
/*
* Copyright 2018 <+YOU OR YOUR COMPANY+>.
*
* This 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.
*
* This software 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 this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_CHAOS_CHAOTIC_PREFIX_BC_H
#define INCLUDED_CHAOS_CHAOTIC_PREFIX_BC_H
#include <chaos/api.h>
#include <gnuradio/tagged_stream_block.h>
namespace gr {
namespace chaos {
/*!
* \brief <+description of block+>
* \ingroup chaos
*
*/
class CHAOS_API chaotic_prefix_bc : virtual public gr::tagged_stream_block
{
public:
typedef boost::shared_ptr<chaotic_prefix_bc> sptr;
/*!
* \brief Return a shared_ptr to a new instance of chaos::chaotic_prefix_bc.
*
* To avoid accidental use of raw pointers, chaos::chaotic_prefix_bc's
* constructor is in a private implementation
* class. chaos::chaotic_prefix_bc::make is the public interface for
* creating new instances.
*/
virtual std::vector<float> Logistic_map(float init, float parameter, unsigned \
int seq_len)=0;
static sptr make(float init, float parameter, unsigned int header_len, const \
std::string &len_tag_key); };
} // namespace chaos
} // namespace gr
#endif /* INCLUDED_CHAOS_CHAOTIC_PREFIX_BC_H */
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