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/* -*- c++ -*- */
/*
* Copyright 2005,2013,2018 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 "probe_rate_impl.h"
#include <gnuradio/io_signature.h>
namespace gr {
namespace blocks {
probe_rate::sptr probe_rate::make(size_t itemsize, double update_rate_ms, double alpha)
{
return gnuradio::get_initial_sptr(
new probe_rate_impl(itemsize, update_rate_ms, alpha));
}
probe_rate_impl::probe_rate_impl(size_t itemsize, double update_rate_ms, double alpha)
: sync_block("probe_rate",
io_signature::make(1, 1, itemsize),
io_signature::make(0, 0, itemsize)),
d_alpha(alpha),
d_beta(1.0 - alpha),
d_avg(0),
d_min_update_time(update_rate_ms),
d_lastthru(0),
d_port(pmt::mp("rate")),
d_dict_avg(pmt::mp("rate_avg")),
d_dict_now(pmt::mp("rate_now"))
{
message_port_register_out(d_port);
}
probe_rate_impl::~probe_rate_impl() {}
int probe_rate_impl::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
d_lastthru += noutput_items;
boost::posix_time::ptime now(boost::posix_time::microsec_clock::local_time());
boost::posix_time::time_duration diff = now - d_last_update;
double diff_ms = diff.total_milliseconds();
if (diff_ms >= d_min_update_time) {
double rate_this_update = d_lastthru * 1e3 / diff_ms;
d_lastthru = 0;
d_last_update = now;
if (d_avg == 0) {
d_avg = rate_this_update;
} else {
d_avg = rate_this_update * d_alpha + d_avg * d_beta;
}
pmt::pmt_t d = pmt::make_dict();
d = pmt::dict_add(d, d_dict_avg, pmt::mp(d_avg));
d = pmt::dict_add(d, d_dict_now, pmt::mp(rate_this_update));
message_port_pub(d_port, pmt::cons(d, pmt::PMT_NIL));
}
return noutput_items;
}
void probe_rate_impl::setup_rpc()
{
#ifdef GR_CTRLPORT
add_rpc_variable(rpcbasic_sptr(
new rpcbasic_register_get<probe_rate_impl, double>(alias(),
"rate_items",
&probe_rate_impl::rate,
pmt::mp(0),
pmt::mp(1e6),
pmt::mp(1),
"items/sec",
"Item rate",
RPC_PRIVLVL_MIN,
DISPTIME | DISPOPTSTRIP)));
add_rpc_variable(rpcbasic_sptr(new rpcbasic_register_get<probe_rate_impl, double>(
alias(),
"timesincelast",
&probe_rate_impl::timesincelast,
pmt::mp(0),
pmt::mp(d_min_update_time * 2),
pmt::mp(0),
"ms",
"Time since last update",
RPC_PRIVLVL_MIN,
DISPTIME | DISPOPTSTRIP)));
#endif
}
void probe_rate_impl::set_alpha(double alpha) { d_alpha = alpha; }
double probe_rate_impl::rate() { return d_avg; }
double probe_rate_impl::timesincelast()
{
boost::posix_time::ptime now(boost::posix_time::microsec_clock::local_time());
boost::posix_time::time_duration diff = now - d_last_update;
return diff.total_milliseconds();
}
bool probe_rate_impl::start()
{
d_avg = 0;
d_lastthru = 0;
d_last_update = boost::posix_time::microsec_clock::local_time();
return true;
}
bool probe_rate_impl::stop() { return true; }
} /* namespace blocks */
} /* namespace gr */
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