portapack-mayhem/firmware/application/log_file.cpp

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/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of PortaPack.
*
* This program 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 2, or (at your option)
* any later version.
*
* This program 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 this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "log_file.hpp"
#include "string_format.hpp"
#include "lpc43xx_cpp.hpp"
using namespace lpc43xx;
LogFile::~LogFile() {
close();
}
bool LogFile::open_for_append(const std::string& file_path) {
const auto open_result = f_open(&f, file_path.c_str(), FA_WRITE | FA_OPEN_ALWAYS);
if( open_result == FR_OK ) {
const auto seek_result = f_lseek(&f, f_size(&f));
if( seek_result == FR_OK ) {
return true;
} else {
close();
}
}
return false;
}
bool LogFile::close() {
f_close(&f);
return true;
}
bool LogFile::is_ready() {
return !f_error(&f);
}
bool LogFile::write_entry(const rtc::RTC& datetime, const std::string& entry) {
std::string timestamp =
to_string_dec_uint(datetime.year(), 4, '0') +
to_string_dec_uint(datetime.month(), 2, '0') +
to_string_dec_uint(datetime.day(), 2, '0') +
to_string_dec_uint(datetime.hour(), 2, '0') +
to_string_dec_uint(datetime.minute(), 2, '0') +
to_string_dec_uint(datetime.second(), 2, '0');
return write(timestamp + " " + entry + "\r\n");
}
bool LogFile::write(const std::string& message) {
const auto puts_result = f_puts(message.c_str(), &f);
const auto sync_result = f_sync(&f);
return (puts_result >= 0) && (sync_result == FR_OK);
}