mirror of https://github.com/gnss-sdr/gnss-sdr
155 lines
5.6 KiB
C++
155 lines
5.6 KiB
C++
/*!
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* \file tlm_crc_stats.cc
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* \brief Class that computes the telemetry CRC statistics
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* \author Marc Majoral, 2021. mmajoral(at)cttc.es
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*
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* -----------------------------------------------------------------------------
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*
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* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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* This file is part of GNSS-SDR.
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*
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* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* -----------------------------------------------------------------------------
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*/
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#include "tlm_crc_stats.h"
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#include "gnss_sdr_create_directory.h"
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#include "gnss_sdr_filesystem.h"
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#include <glog/logging.h>
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#include <iomanip> // for std::setw()
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#include <iostream> // for cerr, cout
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#include <utility> // for std::move
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void Tlm_CRC_Stats::initialize(std::string dump_crc_stats_filename)
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{
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d_dump_crc_stats_filename = std::move(dump_crc_stats_filename);
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d_enable_crc_stats = true;
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d_num_crc_ok = 0;
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d_num_crc_not_ok = 0;
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}
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bool Tlm_CRC_Stats::set_channel(int32_t channel)
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{
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std::string dump_path;
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d_channel = channel;
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// Get path
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if (d_dump_crc_stats_filename.find_last_of('/') != std::string::npos)
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{
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std::string dump_filename_ = d_dump_crc_stats_filename.substr(d_dump_crc_stats_filename.find_last_of('/') + 1);
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dump_path = d_dump_crc_stats_filename.substr(0, d_dump_crc_stats_filename.find_last_of('/'));
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d_dump_crc_stats_filename = std::move(dump_filename_);
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}
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else
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{
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dump_path = std::string(".");
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}
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// remove extension if any
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if (d_dump_crc_stats_filename.substr(1).find_last_of('.') != std::string::npos)
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{
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d_dump_crc_stats_filename = d_dump_crc_stats_filename.substr(0, d_dump_crc_stats_filename.find_last_of('.'));
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}
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d_dump_crc_stats_filename.append("_ch");
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d_dump_crc_stats_filename.append(std::to_string(d_channel));
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d_dump_crc_stats_filename.append(".txt");
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d_dump_crc_stats_filename = dump_path + fs::path::preferred_separator + d_dump_crc_stats_filename;
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// create directory
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if (!gnss_sdr_create_directory(dump_path))
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{
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std::cerr << "GNSS-SDR cannot create telemetry CRC stats dump file for the Telemetry block. The telemetry CRC statistics has been disabled. Wrong permissions?\n";
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d_enable_crc_stats = false;
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}
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d_dump_file.exceptions(std::ofstream::failbit | std::ofstream::badbit);
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try
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{
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d_dump_file.open(d_dump_crc_stats_filename.c_str(), std::ios::out);
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}
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catch (const std::ofstream::failure &e)
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{
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LOG(WARNING) << "Exception opening telemetry CRC stats dump file " << e.what();
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d_enable_crc_stats = false;
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}
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return true;
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}
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void Tlm_CRC_Stats::update_CRC_stats(bool CRC)
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{
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if (CRC)
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{
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d_num_crc_ok++;
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}
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else
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{
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d_num_crc_not_ok++;
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}
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}
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Tlm_CRC_Stats::~Tlm_CRC_Stats()
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{
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const uint32_t num_crc_tests = d_num_crc_ok + d_num_crc_not_ok;
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float success_rate = 0.0;
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if (num_crc_tests > 0)
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{
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success_rate = static_cast<float>(d_num_crc_ok) / static_cast<float>(num_crc_tests);
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}
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try
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{
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const std::string txt_num_crc_tests("Num CRC Tests");
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const auto align_num_crc_tests = txt_num_crc_tests.length();
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const std::string txt_success_tests(" | Successful Tests");
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const auto align_success_tests = txt_success_tests.length();
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const std::string txt_success_rate(" | Success rate");
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const auto align_success_rate = txt_success_rate.length();
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const std::string txt_delimiter(" |");
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const auto align_delimiter = txt_delimiter.length();
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if (d_enable_crc_stats && d_dump_file.is_open())
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{
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// write results to the telemetry CRC statistics output file
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try
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{
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d_dump_file << txt_num_crc_tests << txt_success_tests << txt_success_rate << std::endl;
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d_dump_file << std::setw(align_num_crc_tests) << num_crc_tests << txt_delimiter << std::setw(align_success_tests - align_delimiter) << d_num_crc_ok << txt_delimiter << std::setw(align_success_rate - align_delimiter) << std::setprecision(4) << success_rate << std::endl;
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}
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catch (const std::exception &ex)
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{
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DLOG(INFO) << "Telemetry CRC stats cannot write on the output file " << d_dump_crc_stats_filename.c_str();
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}
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const auto pos = d_dump_file.tellp();
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try
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{
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d_dump_file.close();
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}
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catch (const std::exception &ex)
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{
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LOG(WARNING) << "Exception in destructor closing the telemetry CRC stats dump file " << ex.what();
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}
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if (pos == 0)
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{
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errorlib::error_code ec;
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if (!fs::remove(fs::path(d_dump_crc_stats_filename), ec))
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{
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std::cerr << "Problem removing telemetry CRC stats temporary file " << d_dump_crc_stats_filename << '\n';
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}
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}
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}
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}
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catch (const std::exception &e)
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{
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std::cerr << "Problem in Tlm_CRC_Stats destructor: " << e.what() << '\n';
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}
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}
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