log.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2006,2007 INRIA
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * 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; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
 */

#ifndef NS3_LOG_H
#define NS3_LOG_H

#include <string>
#include <iostream>
#include <stdint.h>
#include <map>

#include "log-macros-enabled.h"
#include "log-macros-disabled.h"

namespace ns3 {

enum LogLevel {
  LOG_NONE           = 0x00000000, 

  LOG_ERROR          = 0x00000001, 
  LOG_LEVEL_ERROR    = 0x00000001, 

  LOG_WARN           = 0x00000002, 
  LOG_LEVEL_WARN     = 0x00000003, 

  LOG_DEBUG          = 0x00000004, 
  LOG_LEVEL_DEBUG    = 0x00000007, 

  LOG_INFO           = 0x00000008, 
  LOG_LEVEL_INFO     = 0x0000000f, 

  LOG_FUNCTION       = 0x00000010, 
  LOG_LEVEL_FUNCTION = 0x0000001f, 

  LOG_LOGIC          = 0x00000020, 
  LOG_LEVEL_LOGIC    = 0x0000003f, 

  LOG_ALL            = 0x0fffffff, 
  LOG_LEVEL_ALL      = LOG_ALL,    

  LOG_PREFIX_FUNC    = 0x80000000, 
  LOG_PREFIX_TIME    = 0x40000000, 
  LOG_PREFIX_NODE    = 0x20000000, 
  LOG_PREFIX_LEVEL   = 0x10000000, 
  LOG_PREFIX_ALL     = 0xf0000000  
};

void LogComponentEnable (char const *name, enum LogLevel level);

void LogComponentEnableAll (enum LogLevel level);


void LogComponentDisable (char const *name, enum LogLevel level);

void LogComponentDisableAll (enum LogLevel level);


} // namespace ns3


#define NS_LOG_COMPONENT_DEFINE(name)                           \
  static ns3::LogComponent g_log = ns3::LogComponent (name, __FILE__)

#define NS_LOG_COMPONENT_DEFINE_MASK(name, mask)                \
  static ns3::LogComponent g_log = ns3::LogComponent (name, __FILE__, mask)

#define NS_LOG_ERROR(msg) \
  NS_LOG (ns3::LOG_ERROR, msg)

#define NS_LOG_WARN(msg) \
  NS_LOG (ns3::LOG_WARN, msg)

#define NS_LOG_DEBUG(msg) \
  NS_LOG (ns3::LOG_DEBUG, msg)

#define NS_LOG_INFO(msg) \
  NS_LOG (ns3::LOG_INFO, msg)

#define NS_LOG_LOGIC(msg) \
  NS_LOG (ns3::LOG_LOGIC, msg)


namespace ns3 {

void LogComponentPrintList (void);

typedef void (*LogTimePrinter)(std::ostream &os);
typedef void (*LogNodePrinter)(std::ostream &os);

void LogSetTimePrinter (LogTimePrinter lp);
LogTimePrinter LogGetTimePrinter (void);

void LogSetNodePrinter (LogNodePrinter np);
LogNodePrinter LogGetNodePrinter (void);


class LogComponent
{
public:
  LogComponent (const std::string & name,
                const std::string & file,
                const enum LogLevel mask = LOG_NONE);
  bool IsEnabled (const enum LogLevel level) const;
  bool IsNoneEnabled (void) const;
  void Enable (const enum LogLevel level);
  void Disable (const enum LogLevel level);
  char const *Name (void) const;
  std::string File (void) const;
  static std::string GetLevelLabel(const enum LogLevel level);
  void SetMask (const enum LogLevel level);

  typedef std::map<std::string, LogComponent *> ComponentList;

  static ComponentList *GetComponentList (void);

  
private:
  void EnvVarCheck (void);
  
  int32_t     m_levels;  
  int32_t     m_mask;    
  std::string m_name;    
  std::string m_file;    

};  // class LogComponent

  
class ParameterLogger
{
  bool m_first;        
  std::ostream &m_os;  
public:
  ParameterLogger (std::ostream &os);

  template<typename T>
  ParameterLogger& operator<< (T param);

};

template<typename T>
ParameterLogger&
ParameterLogger::operator<< (T param)
{
  if (m_first)
    {
      m_os << param;
      m_first = false;
    }
  else
    {
      m_os << ", " << param;
    }
  return *this;
}

template<>
ParameterLogger&
ParameterLogger::operator<< <std::string>(const std::string param);
  
template<>
ParameterLogger&
ParameterLogger::operator<< <const char *>(const char * param);
  
} // namespace ns3
  // \ingroup logging

#endif /* NS3_LOG_H */