adding a component for statistics and monitoring of the DAQ readout list

[u/mrichter/AliRoot.git] / HLT / BASE / AliHLTPluginBase.cxx

// $Id$

//**************************************************************************
//* This file is property of and copyright by the ALICE HLT Project        * 
//* ALICE Experiment at CERN, All rights reserved.                         *
//*                                                                        *
//* Primary Authors: Matthias Richter <Matthias.Richter@ift.uib.no>        *
//*                  for The ALICE HLT Project.                            *
//*                                                                        *
//* Permission to use, copy, modify and distribute this software and its   *
//* documentation strictly for non-commercial purposes is hereby granted   *
//* without fee, provided that the above copyright notice appears in all   *
//* copies and that both the copyright notice and this permission notice   *
//* appear in the supporting documentation. The authors make no claims     *
//* about the suitability of this software for any purpose. It is          *
//* provided "as is" without express or implied warranty.                  *
//**************************************************************************

/** @file   AliHLTPluginBase.cxx
    @author Matthias Richter
    @date   
    @brief  Base class for AliRoot HLT plugins.
*/

#include "AliHLTPluginBase.h"
#include "AliHLTSystem.h"

/** ROOT macro for the implementation of ROOT specific class methods */
ClassImp(AliHLTPluginBase)

AliHLTPluginBase::AliHLTPluginBase()
{
  // see header file for class documentation
  // or
  // refer to README to build package
  // or
  // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
  fNofInstances++;
}

AliHLTPluginBase::~AliHLTPluginBase()
{
  // see header file for class documentation
  if (--fNofInstances<=0) delete fpSystem;
  fpSystem=NULL;
}

void AliHLTPluginBase::InitInstance()
{
  // see header file for class documentation
  if (!fpSystem) fpSystem=new AliHLTSystem;
}

AliHLTSystem* AliHLTPluginBase::GetInstance()
{
  // see header file for class documentation
  if (!fpSystem) InitInstance();
  return fpSystem;
}


AliHLTSystem* AliHLTPluginBase::fpSystem=NULL;

int AliHLTPluginBase::fNofInstances=0;