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/* -*- c++ -*- */
/*
* Copyright 2005,2012 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_COMEDI_SOURCE_S_IMPL_H
#define INCLUDED_COMEDI_SOURCE_S_IMPL_H
#include <gnuradio/comedi/source_s.h>
#include <string>
#include <comedilib.h>
#include <stdexcept>
namespace gr {
namespace comedi {
class source_s_impl : public source_s
{
private:
// typedef for pointer to class work method
typedef int(source_s::*work_t)(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
unsigned int d_sampling_freq;
std::string d_device_name;
comedi_t *d_dev;
int d_subdevice;
int d_n_chan;
void *d_map;
int d_buffer_size;
unsigned d_buf_front;
unsigned d_buf_back;
// random stats
int d_noverruns; // count of overruns
void output_error_msg(const char *msg, int err);
void bail(const char *msg, int err) throw (std::runtime_error);
public:
source_s_impl(int sampling_freq, const std::string device_name);
~source_s_impl();
bool check_topology(int ninputs, int noutputs);
int work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
};
} /* namespace comedi */
} /* namespace gr */
#endif /* INCLUDED_COMEDI_SOURCE_S_IMPL_H */
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