mirror of
https://github.com/gnss-sdr/gnss-sdr
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124 lines
3.9 KiB
C++
124 lines
3.9 KiB
C++
/*!
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* \file true_observables_reader.cc
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* \brief Helper file for unit testing
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* \author Javier Arribas, 2017. jarribas(at)cttc.es
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*
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* -------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2018 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
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* Satellite Systems receiver
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*
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* This file is part of GNSS-SDR.
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*
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* GNSS-SDR is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GNSS-SDR is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
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*
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* -------------------------------------------------------------------------
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*/
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#include "true_observables_reader.h"
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#include <iostream>
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#include <utility>
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bool true_observables_reader::read_binary_obs()
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{
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try
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{
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for (int i = 0; i < 12; i++)
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{
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d_dump_file.read(reinterpret_cast<char *>(&gps_time_sec[i]), sizeof(double));
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d_dump_file.read(reinterpret_cast<char *>(&doppler_l1_hz[i]), sizeof(double));
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d_dump_file.read(reinterpret_cast<char *>(&acc_carrier_phase_l1_cycles[i]), sizeof(double));
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d_dump_file.read(reinterpret_cast<char *>(&dist_m[i]), sizeof(double));
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d_dump_file.read(reinterpret_cast<char *>(&true_dist_m[i]), sizeof(double));
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d_dump_file.read(reinterpret_cast<char *>(&carrier_phase_l1_cycles[i]), sizeof(double));
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d_dump_file.read(reinterpret_cast<char *>(&prn[i]), sizeof(double));
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}
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}
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catch (const std::ifstream::failure &e)
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{
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return false;
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}
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return true;
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}
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bool true_observables_reader::restart()
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{
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if (d_dump_file.is_open())
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{
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d_dump_file.clear();
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d_dump_file.seekg(0, std::ios::beg);
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return true;
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}
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else
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{
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return false;
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}
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}
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int64_t true_observables_reader::num_epochs()
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{
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std::ifstream::pos_type size;
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int number_of_vars_in_epoch = 6 * 12;
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int epoch_size_bytes = sizeof(double) * number_of_vars_in_epoch;
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std::ifstream tmpfile(d_dump_filename.c_str(), std::ios::binary | std::ios::ate);
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if (tmpfile.is_open())
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{
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size = tmpfile.tellg();
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int64_t nepoch = size / epoch_size_bytes;
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return nepoch;
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}
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else
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{
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return 0;
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}
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}
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bool true_observables_reader::open_obs_file(std::string out_file)
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{
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if (d_dump_file.is_open() == false)
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{
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try
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{
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d_dump_filename = std::move(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);
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std::cout << "True observables Log file opened: " << d_dump_filename.c_str() << std::endl;
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return true;
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}
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catch (const std::ifstream::failure &e)
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{
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std::cout << "Problem opening True observables Log file: " << d_dump_filename.c_str() << std::endl;
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return false;
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}
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}
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else
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{
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return false;
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}
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}
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true_observables_reader::~true_observables_reader()
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{
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if (d_dump_file.is_open() == true)
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{
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d_dump_file.close();
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}
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}
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