473 lines
6.9 KiB
C++
473 lines
6.9 KiB
C++
/*
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* This file is a part of PikoTools
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* and is distributed under the (new) BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2018, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name Tomasz Sowa nor the names of contributors to this
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* project may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <ctime>
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#include <string.h>
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#include "logger.h"
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#include "date/date.h"
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#include "utf8/utf8.h"
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namespace PT
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{
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Logger::Logger()
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{
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log_level = 1;
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current_level = 100; // nothing to log (call Init() first)
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lines = 0;
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max_lines = 500;
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log_file_open = false;
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}
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Logger::~Logger()
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{
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save_log_and_clear();
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}
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int Logger::get_log_level()
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{
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return log_level;
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}
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void Logger::set_log_level(int log_level)
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{
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this->log_level = log_level;
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}
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void Logger::init(int log_level, bool save_each_line, const std::wstring & log_file, bool log_stdout)
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{
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this->log_level = log_level;
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this->save_each_line = save_each_line;
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this->log_stdout = log_stdout;
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PT::WideToUTF8(log_file, this->log_file);
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// don't open the file here
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// because it would be created with the root as an owner if you created something like a www server
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// which starts as root and then drops privileges
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}
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void Logger::open_file()
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{
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if( !log_file.empty() )
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{
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file.open(log_file.c_str(), std::ios_base::out | std::ios_base::app);
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log_file_open = true;
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}
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}
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Logger & Logger::operator<<(const void * s)
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{
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if( current_level > log_level )
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return *this;
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buffer << s;
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return *this;
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}
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Logger & Logger::operator<<(const char * s)
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{
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if( current_level > log_level )
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return *this;
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if( !s )
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return *this;
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buffer << s;
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return *this;
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}
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Logger & Logger::operator<<(const std::string & s)
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{
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if( current_level > log_level )
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return *this;
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buffer << s;
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return *this;
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}
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Logger & Logger::operator<<(const std::string * s)
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{
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if( current_level > log_level )
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return *this;
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buffer << *s;
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return *this;
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}
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Logger & Logger::operator<<(const wchar_t * s)
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{
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if( current_level <= log_level )
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{
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if( s )
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buffer << s;
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}
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return *this;
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}
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Logger & Logger::operator<<(const std::wstring & s)
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{
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if( current_level <= log_level )
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{
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buffer << s;
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}
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return *this;
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}
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Logger & Logger::operator<<(const std::wstring * s)
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{
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if( current_level <= log_level )
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{
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buffer << *s;
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}
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return *this;
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}
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Logger & Logger::operator<<(int s)
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{
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if( current_level <= log_level )
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{
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buffer << s;
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}
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return *this;
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}
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Logger & Logger::operator<<(long s)
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{
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if( current_level <= log_level )
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{
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buffer << s;
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}
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return *this;
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}
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Logger & Logger::operator<<(char s)
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{
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if( current_level <= log_level )
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{
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buffer << s;
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}
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return *this;
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}
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Logger & Logger::operator<<(wchar_t s)
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{
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if( current_level <= log_level )
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{
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buffer << s;
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}
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return *this;
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}
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Logger & Logger::operator<<(size_t s)
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{
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if( current_level <= log_level )
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{
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buffer << s;
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}
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return *this;
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}
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Logger & Logger::operator<<(double s)
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{
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if( current_level <= log_level )
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{
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buffer << s;
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}
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return *this;
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}
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Logger & Logger::operator<<(const PT::Space & s)
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{
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if( current_level <= log_level )
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{
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buffer << s;
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}
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return *this;
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}
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Logger & Logger::operator<<(const PT::Date & date)
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{
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if( current_level <= log_level )
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{
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buffer << date;
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}
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return *this;
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}
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Logger & Logger::operator<<(Manipulators m)
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{
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switch(m)
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{
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case lend:
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case logend:
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// IMPROVE ME use max_lines here
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if( current_level <= log_level )
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{
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buffer << '\n';
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lines += 1;
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if( save_each_line )
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save_log_and_clear();
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}
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break;
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case lsave:
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case logsave:
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save_log_and_clear();
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break;
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case l1:
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case log1:
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current_level = 1;
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break;
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case l2:
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case log2:
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current_level = 2;
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break;
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case l3:
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case log3:
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current_level = 3;
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break;
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case l4:
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case log4:
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current_level = 4;
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break;
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default:
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break;
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}
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return *this;
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}
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char Logger::get_hex_digit(unsigned char c)
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{
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if( c < 10 )
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return c + '0';
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return c - 10 + 'A';
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}
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void Logger::to_hex(char * buf, unsigned char c)
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{
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buf[0] = get_hex_digit(c >> 4);
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buf[1] = get_hex_digit(c & 0xf);
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buf[2] = 0;
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}
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Logger & Logger::log_binary(const char * blob, size_t blob_len)
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{
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size_t i=0;
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char buf[3];
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while( i < blob_len )
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{
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size_t oldi = i;
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for(size_t a=0 ; a<16 ; ++a)
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{
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if( i < blob_len )
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{
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to_hex(buf, blob[i]);
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buffer << buf << ' ';
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++i;
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}
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else
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{
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buffer << " ";
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}
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if( a == 7 )
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{
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if( i < blob_len )
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buffer << "- ";
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else
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buffer << " ";
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}
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}
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i = oldi;
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buffer << ' ';
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for(size_t a=0 ; a<16 && i<blob_len ; ++a, ++i)
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{
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if( blob[i] > 31 && blob[i] < 127 )
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buffer << blob[i];
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else
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buffer << '.';
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}
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(*this) << logend;
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}
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return *this;
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}
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Logger & Logger::log_binary(const std::string & blob)
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{
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return log_binary(blob.c_str(), blob.size());
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}
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void Logger::save_log_and_clear()
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{
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save_log();
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buffer.clear();
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lines = 0;
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}
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void Logger::save_log()
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{
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std::wstring log_wide;// IMPROVE ME do something better
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std::string log_ascii;// IMPROVE ME
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if( buffer.empty() )
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return;
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// IMPROVE ME
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// add special version of TextStream.to_string()
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// which can convert from wide to utf8 (by using if constexpr)
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// may we need a different buffer type? utf8 buffer?
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buffer.to_string(log_wide);
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PT::WideToUTF8(log_wide, log_ascii);
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if( log_stdout )
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std::cout << log_ascii;
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if( log_file.empty() )
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return;
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if( !log_file_open || !file )
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{
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file.close();
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file.clear();
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open_file();
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if( !file )
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return;
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}
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file << log_ascii;
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file.flush();
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}
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} // namespace
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