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gnss-sdr/src/algorithms/libs/gnss_sdr_sample_counter.cc
2017-05-02 12:01:18 +02:00

72 lines
2.6 KiB
C++

/*!
* \file gnss_sdr_sample_counter.cc
* \brief Simple block to report the current receiver time based on the output of the tracking or telemetry blocks
* \author Javier Arribas 2017. jarribas(at)cttc.es
*
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2015 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* GNSS-SDR 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 of the License, or
* (at your option) any later version.
*
* GNSS-SDR 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 GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#include "gnss_sdr_sample_counter.h"
#include "gnss_synchro.h"
#include <gnuradio/io_signature.h>
gnss_sdr_sample_counter::gnss_sdr_sample_counter () : gr::sync_block("sample_counter",
gr::io_signature::make(1, 1, sizeof(Gnss_Synchro)),
gr::io_signature::make(0,0,0))
{
this->message_port_register_out(pmt::mp("sample_counter"));
last_T_rx_s=0;
report_interval_s=1;//default reporting 1 second
flag_enable_send_msg=false; //enable it for reporting time with asynchronous message
}
gnss_sdr_sample_counter_sptr gnss_sdr_make_sample_counter ()
{
gnss_sdr_sample_counter_sptr sample_counter_(new gnss_sdr_sample_counter());
return sample_counter_;
}
int gnss_sdr_sample_counter::work (int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
const Gnss_Synchro *in = (const Gnss_Synchro *) input_items[0]; // input
double current_T_rx_s=in[noutput_items-1].Tracking_sample_counter/(double)in[noutput_items-1].fs;
if ((current_T_rx_s-last_T_rx_s)>report_interval_s)
{
std::cout<<"Current receiver time: "<<floor(current_T_rx_s)<<" [s]"<<std::endl;
if(flag_enable_send_msg==true)
{
this->message_port_pub(pmt::mp("receiver_time"), pmt::from_double(current_T_rx_s));
}
last_T_rx_s=current_T_rx_s;
}
return noutput_items;
}