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/* -*- c++ -*- */
/*
* Copyright 2004,2006,2007 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <gnuradio/io_signature.h>
#include "measure_processing_rate_impl.h"
#include <stdexcept>
#include <sys/time.h>
namespace gr {
namespace dab {
measure_processing_rate::sptr
measure_processing_rate::make(size_t itemsize, int samples_to_count)
{
return gnuradio::get_initial_sptr
(new measure_processing_rate_impl(itemsize, samples_to_count));
}
measure_processing_rate_impl::measure_processing_rate_impl(size_t itemsize, int samples_to_count)
: gr::sync_block("measure_processing_rate",
gr::io_signature::make(1, 1, itemsize),
gr::io_signature::make(0, 0, 0)),
d_itemsize(itemsize), d_samples_to_count(samples_to_count), d_count(0), d_processing_rate(0)
{
if (gettimeofday(&d_time, NULL) != 0) {
perror("dab_measure_processing_rate: gettimeofday");
exit(-1);
}
}
int
measure_processing_rate_impl::work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
d_count+=noutput_items;
struct timeval cur_time;
if (d_count >= d_samples_to_count) {
d_count -= d_samples_to_count;
if (gettimeofday(&cur_time, NULL) != 0) {
perror("dab_measure_processing_rate: gettimeofday");
exit(-1);
}
d_processing_rate = (float)d_samples_to_count/((float)(cur_time.tv_sec - d_time.tv_sec) + (float)(cur_time.tv_usec - d_time.tv_usec)/1000000);
d_time = cur_time;
// printf("processing rate: %f\n", d_processing_rate);
}
return noutput_items;
}
}
}
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