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gnss-sdr/src/tests/unit-tests/signal-processing-blocks/libs/tracking_dump_reader.cc

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/*!
* \file tracking_dump_reader.cc
* \brief Helper file for unit testing
* \author Javier Arribas, 2017. jarribas(at)cttc.es
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2017 (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 "tracking_dump_reader.h"
bool tracking_dump_reader::read_binary_obs()
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{
try {
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d_dump_file.read(reinterpret_cast<char *>(&abs_E), sizeof(float));
d_dump_file.read(reinterpret_cast<char *>(&abs_P), sizeof(float));
d_dump_file.read(reinterpret_cast<char *>(&abs_L), sizeof(float));
d_dump_file.read(reinterpret_cast<char *>(&prompt_I), sizeof(float));
d_dump_file.read(reinterpret_cast<char *>(&prompt_Q), sizeof(float));
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d_dump_file.read(reinterpret_cast<char *>(&PRN_start_sample_count), sizeof(unsigned long int));
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d_dump_file.read(reinterpret_cast<char *>(&acc_carrier_phase_rad), sizeof(double));
d_dump_file.read(reinterpret_cast<char *>(&carrier_doppler_hz), sizeof(double));
d_dump_file.read(reinterpret_cast<char *>(&code_freq_chips), sizeof(double));
d_dump_file.read(reinterpret_cast<char *>(&carr_error_hz), sizeof(double));
d_dump_file.read(reinterpret_cast<char *>(&carr_error_filt_hz), sizeof(double));
d_dump_file.read(reinterpret_cast<char *>(&code_error_chips), sizeof(double));
d_dump_file.read(reinterpret_cast<char *>(&code_error_filt_chips), sizeof(double));
d_dump_file.read(reinterpret_cast<char *>(&CN0_SNV_dB_Hz), sizeof(double));
d_dump_file.read(reinterpret_cast<char *>(&carrier_lock_test), sizeof(double));
d_dump_file.read(reinterpret_cast<char *>(&aux1), sizeof(double));
d_dump_file.read(reinterpret_cast<char *>(&aux2), sizeof(double));
d_dump_file.read(reinterpret_cast<char *>(&PRN), sizeof(unsigned int));
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}
catch (const std::exception &e)
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{
return false;
}
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return true;
}
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bool tracking_dump_reader::restart()
{
if (d_dump_file.is_open())
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{
d_dump_file.clear();
d_dump_file.seekg(0, std::ios::beg);
return true;
}
else
{
return false;
}
}
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long int tracking_dump_reader::num_epochs()
{
std::ifstream::pos_type size;
int number_of_double_vars = 11;
int number_of_float_vars = 5;
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int epoch_size_bytes = sizeof(unsigned long int) + sizeof(double) * number_of_double_vars +
sizeof(float) * number_of_float_vars + sizeof(unsigned int);
std::ifstream tmpfile(d_dump_filename.c_str(), std::ios::binary | std::ios::ate);
if (tmpfile.is_open())
{
size = tmpfile.tellg();
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long int nepoch = size / epoch_size_bytes;
return nepoch;
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}
else
{
return 0;
}
}
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bool tracking_dump_reader::open_obs_file(std::string out_file)
{
if (d_dump_file.is_open() == false)
{
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try
{
d_dump_filename = out_file;
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d_dump_file.exceptions( std::ifstream::failbit | std::ifstream::badbit );
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d_dump_file.open(d_dump_filename.c_str(), std::ios::in | std::ios::binary);
std::cout << "Tracking dump enabled, Log file: " << d_dump_filename.c_str() << std::endl;
return true;
}
catch (const std::ifstream::failure & e)
{
std::cout << "Problem opening Tracking dump Log file: " << d_dump_filename.c_str() << std::endl;
return false;
}
}
else
{
return false;
}
}
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tracking_dump_reader::~tracking_dump_reader()
{
if (d_dump_file.is_open() == true)
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{
d_dump_file.close();
}
}