text: // Copyright (c) 2011-2016 The Cryptonote developers
   
  // Distributed under the MIT/X11 software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include "Logger.h"
  
  #include <algorithm>
  #include <boost/date_time.hpp>
  
  CLogger& CLogger::Instance()
  {
  	static CLogger theSingleInstance;
  	return theSingleInstance;
  }
  void CLogger::init(LOG_LEVEL log_lvl)
  {
    level_names[TRACE]   = "[ TRACE ]";
    level_names[DEBUG]   = "[ DEBUG ]";
    level_names[_ERROR]  = "[ ERROR ]";
    level_names[WARNING] = "[WARNING]";
    level_names[VERBOSE] = "[VERBOSE]";
    log_level = log_lvl;
    indent = 0;
  }
  void CLogger::Log(const std::string & log_info, LOG_LEVEL log_lvl, int indent_inc)
  {
  	if(log_lvl>=log_level)
  	{
  		std::lock_guard<std::mutex> lock(mutex);
  		if (indent_inc<0)indent+=indent_inc;
  		std::string sindent(std::max(0,indent),' ');
  		if (indent_inc>0)indent+=indent_inc;
      (log_lvl<WARNING?std::cout:std::cerr)<<boost::posix_time::to_iso_extended_string(boost::posix_time::second_clock::local_time())<<level_names[log_lvl].c_str()<<sindent<<log_info.c_str()<<std::endl;
  	}
  }
  