G4NavigationHistoryPool.cc

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//
//
// $Id:$
//
// G4NavigationHistoryPool
//
// Implementation for singleton container
//
// History:
// 07.05.14 G.Cosmo Initial version
// --------------------------------------------------------------------

#include "globals.hh"
#include "G4NavigationHistoryPool.hh"

// ***************************************************************************
// Static class variables
// ***************************************************************************
//
G4ThreadLocal G4NavigationHistoryPool* G4NavigationHistoryPool::fgInstance = 0;

// ***************************************************************************
// Private constructor: Construct underlying containers
// ***************************************************************************
//
G4NavigationHistoryPool::G4NavigationHistoryPool()
{
}

// ***************************************************************************
// Destructor
// ***************************************************************************
//
G4NavigationHistoryPool::~G4NavigationHistoryPool() 
{
  Clean(); fgInstance = 0;
}

// ***************************************************************************
// Delete all elements from the pool
// ***************************************************************************
//
void G4NavigationHistoryPool::Clean()
{
  for(size_t i=0; i<fPool.size(); ++i)
  {
    delete fPool[i];
  }
#ifdef G4VERBOSE
  G4cout << "Total navigation history collections cleaned: "
         << fPool.size() << G4endl;
#endif
  fPool.clear();
  fActive.clear();
}

// ***************************************************************************
// Delete all elements from the pool
// ***************************************************************************
//
void G4NavigationHistoryPool::Reset()
{
  for(size_t i=0; i<fPool.size(); ++i)
  {
    fPool[i] = 0; fActive[i] = false;
  }
}

// ***************************************************************************
// Return the pointer of the first available collection of levels
// If none are available (i.e. non active) allocate collection
// ***************************************************************************
//
std::vector<G4NavigationLevel> * G4NavigationHistoryPool::GetLevels()
{
  std::vector<G4bool>::iterator
    pos = std::find(fActive.begin(), fActive.end(), false);
  if (pos != fActive.end())
  {
    *pos = true;
    return fPool[pos-fActive.begin()];
  }
  return GetNewLevels();
}

// ***************************************************************************
// Return ptr to Store, setting if necessary
// ***************************************************************************
//
G4NavigationHistoryPool* G4NavigationHistoryPool::GetInstance()
{
  if (!fgInstance)
  {
    fgInstance = new G4NavigationHistoryPool;
  }
  return fgInstance;
}