log.cpp
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/* ****************************************************************************
* Copyright 2019 Open Systems Development BV *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the "Software"), *
* to deal in the Software without restriction, including without limitation *
* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
* and/or sell copies of the Software, and to permit persons to whom the *
* Software is furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included in *
* all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
* DEALINGS IN THE SOFTWARE. *
* ***************************************************************************/
// std
#include <ios>
#include <iomanip>
#include <iostream>
#include <sstream>
#include <thread>
#include "log.h"
#include "threadcontext.h"
namespace osdev {
namespace components {
namespace log {
int toInt( LogLevel level )
{
switch( level )
{
case LogLevel::Emergency:
return 0;
case LogLevel::Alert:
return 1;
case LogLevel::Critical:
return 2;
case LogLevel::Error:
return 3;
case LogLevel::Warning:
return 4;
case LogLevel::Notice:
return 5;
case LogLevel::Info:
return 6;
case LogLevel::Debug:
return 7;
}
return -1;
}
std::string Log::s_context = std::string();
std::string Log::s_fileName = std::string();
LogLevel Log::s_logLevel = LogLevel::Error;
LogMask Log::s_logMask = LogMask::None;
std::mutex Log::m_mutex = std::mutex();
void Log::init( const std::string& context, const std::string& logFile, LogLevel logDepth )
{
s_logLevel = logDepth;
s_context = context;
if ( !logFile.empty() )
{
s_fileName = logFile;
}
}
void Log::terminate()
{
s_context.clear();
s_fileName.clear();
s_logLevel = LogLevel::Debug;
s_logMask = LogMask::None;
}
void Log::write( const int &priority, const std::string &message, const std::string& context )
{
switch( s_logMask )
{
case LogMask::Mask:
setlogmask( LOG_MASK( toInt( s_logLevel ) ) );
break;
case LogMask::Upto:
setlogmask( LOG_UPTO( toInt( s_logLevel ) ) );
break;
case LogMask::None:
setlogmask( LOG_UPTO( toInt( LogLevel::Debug ) ) );
break;
default:
break;
}
if( !context.empty() )
{
s_context = context;
openlog( s_context.c_str(), LOG_PID, LOG_USER );
}
else
{
openlog( NULL, LOG_PID, LOG_USER );
}
syslog( priority, "%s", message.c_str() );
closelog();
}
std::string Log::fileinfoMessage( const char* file, int line, const std::string& message )
{
(void)file;
(void)line;
// static const std::string templ("%1:%2| %3");
// QFileInfo fi(file);
// return templ.arg( fi.fileName() ).arg(line).arg(message);
return message;
}
void Log::log( const std::string &category, const std::string &message, LogLevel level )
{
std::lock_guard<std::mutex> lock(m_mutex);
std::string logCategory = category;
std::string logMessage = message;
if( logMessage.empty() )
{
static const std::string emptyMessage( "--" );
logMessage = emptyMessage;
}
else
{
// Replace % signs
ReplaceAll( logMessage, "%", "%%" );
}
write( toInt( level ), logCategory, logMessage );
}
// Static functions
void Log::emergency( const char *file, int line, const std::string &category, const std::string &message )
{
log( category, fileinfoMessage( file, line, message ), LogLevel::Emergency );
}
void Log::alert( const char *file, int line, const std::string &category, const std::string &message )
{
log( category, fileinfoMessage( file, line, message ), LogLevel::Alert );
}
void Log::critical( const char *file, int line, const std::string &category, const std::string &message )
{
log( category, fileinfoMessage( file, line, message ), LogLevel::Critical );
}
void Log::error( const char *file, int line, const std::string &category, const std::string &message )
{
log( category, fileinfoMessage( file, line, message ), LogLevel::Error );
}
void Log::warning( const char *file, int line, const std::string &category, const std::string &message )
{
log( category, fileinfoMessage( file, line, message ), LogLevel::Warning );
}
void Log::notice( const char *file, int line, const std::string &category, const std::string &message )
{
log( category, fileinfoMessage( file, line, message ), LogLevel::Notice );
}
void Log::info( const char *file, int line, const std::string &category, const std::string &message )
{
log( category, fileinfoMessage( file, line, message ), LogLevel::Info );
}
void Log::debug( const char *file, int line, const std::string &category, const std::string &message )
{
log( category, fileinfoMessage( file, line, message ), LogLevel::Debug );
}
// Protected functions
void Log::emergency( const std::string &category, const std::string &message )
{
write( toInt( LogLevel::Emergency ), message, category );
}
void Log::alert( const std::string &category, const std::string &message )
{
write( toInt( LogLevel::Alert ), message, category );
}
void Log::critical( const std::string &category, const std::string &message )
{
write( toInt( LogLevel::Critical ), message, category );
}
void Log::error( const std::string &category, const std::string &message )
{
write( toInt( LogLevel::Error ), message, category );
}
void Log::warning( const std::string &category, const std::string &message )
{
write( toInt( LogLevel::Warning ), message, category );
}
void Log::notice( const std::string &category, const std::string &message )
{
write( toInt( LogLevel::Notice ), message, category );
}
void Log::info( const std::string &category, const std::string &message )
{
write( toInt( LogLevel::Info ), message, category );
}
void Log::debug( const std::string &category, const std::string &message )
{
write( toInt( LogLevel::Debug ), message, category );
}
void Log::ReplaceAll( std::string &strToReplace, const std::string& from_chars, const std::string& to_chars )
{
size_t start_pos = 0;
while( ( start_pos = strToReplace.find( from_chars, start_pos ) ) != std::string::npos )
{
strToReplace.replace( start_pos, from_chars.length(), to_chars );
start_pos += to_chars.length(); // Handles case where 'to' is a substring of 'from'
}
}
} /* End namespace log */
} /* End namespace components */
} /* End namespace osdev */