G4SolidsWorkspacePool.cc

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//

#include "G4Types.hh"

#include "G4SolidsWorkspacePool.hh"
#include "G4SolidsWorkspace.hh"

#include "G4AutoLock.hh"

namespace
{
  G4Mutex singletonMutexSWP = G4MUTEX_INITIALIZER;
}

G4SolidsWorkspace*& G4SolidsWorkspacePool::fMyWorkspace()
{
    G4ThreadLocalStatic G4SolidsWorkspace* _instance = nullptr;
    return _instance;
}
G4SolidsWorkspacePool* G4SolidsWorkspacePool::thePool=0;

G4SolidsWorkspacePool* G4SolidsWorkspacePool::GetInstance()
{
  G4AutoLock l(&singletonMutexSWP);
  if( !thePool )  { thePool= new G4SolidsWorkspacePool(); }
  return thePool;
}

// For use with MT and current G4WorkerThread -- which uses static methods
//
G4SolidsWorkspace* G4SolidsWorkspacePool::CreateWorkspace()
{
  G4SolidsWorkspace* geometryWrk=0;
  if( !fMyWorkspace() )
  {
    geometryWrk= new G4SolidsWorkspace();

    if( !geometryWrk )
    {
      G4Exception("GeometryWorspacePool::CreateWorkspace", "Geom-003",
                  FatalException, "Failed to create workspace.");
    }
    else
    {
      // geometryWrk->UseWorkspace();  // Do not assign it already.
      fMyWorkspace()= geometryWrk;
    }
  }
  else
  {
    G4Exception("GeometryWorspacePool::CreateWorkspace", "Geom-003",
                FatalException,
                "Cannot create workspace twice for the same thread.");
    geometryWrk= fMyWorkspace();
  }
  
  return geometryWrk;
}

// Create it (as above) and use it
//
void G4SolidsWorkspacePool::CreateAndUseWorkspace()
{
  (this->CreateWorkspace())->UseWorkspace();
}

// Reuse an existing workspace - or create a new one if needed.
//
G4SolidsWorkspace* G4SolidsWorkspacePool::FindOrCreateWorkspace()
{
  G4SolidsWorkspace* geometryWrk= fMyWorkspace();
  if( !geometryWrk )
  { 
    geometryWrk= this->CreateWorkspace(); 
  } 
  geometryWrk->UseWorkspace();
  
  fMyWorkspace()= geometryWrk; // assign it for use by this thread.
  return geometryWrk;
}


// Keep the unused Workspace - for recycling
//
void G4SolidsWorkspacePool::Recycle( G4SolidsWorkspace *geometryWrk )
{
  geometryWrk->ReleaseWorkspace(); 
  delete geometryWrk;
}


void G4SolidsWorkspacePool::CleanUpAndDestroyAllWorkspaces()
{
  if (fMyWorkspace())
  {
     fMyWorkspace()->DestroyWorkspace();
     delete fMyWorkspace();
     fMyWorkspace()=0;
  }
}


G4SolidsWorkspacePool::G4SolidsWorkspacePool()
{
//  fWarehouse=0;
}


G4SolidsWorkspacePool::~G4SolidsWorkspacePool()
{
}