/***************************************************************************** * Project: RooFit * * Package: RooFitCore * * File: $Id: RooSharedPropertiesList.cc,v 1.2 2006/07/03 15:37:11 wverkerke Exp $ * Authors: * * WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu * * DK, David Kirkby, UC Irvine, dkirkby@uci.edu * * * * Copyright (c) 2000-2005, Regents of the University of California * * and Stanford University. All rights reserved. * * * * Redistribution and use in source and binary forms, * * with or without modification, are permitted according to the terms * * listed in LICENSE (http://roofit.sourceforge.net/license.txt) * *****************************************************************************/ // -- CLASS DESCRIPTION [AUX] -- #include "RooFit.h" #include "RooSharedPropertiesList.h" #include "RooSharedProperties.h" #include "TIterator.h" #include <iostream> using std::cout ; using std::endl ; ClassImp(RooSharedPropertiesList) ; RooSharedPropertiesList::RooSharedPropertiesList() { } RooSharedPropertiesList::~RooSharedPropertiesList() { // Delete all objects in property list TIterator* iter = _propList.MakeIterator() ; RooSharedProperties* prop ; while((prop=(RooSharedProperties*)iter->Next())) { delete prop ; } delete iter ; } RooSharedProperties* RooSharedPropertiesList::registerProperties(RooSharedProperties* prop) { // Register property into list and take ownership. // // If an existing entry has a UUID that identical to that of the argument prop, // the argument prop is deleted and a pointer to the already stored is returned to // eliminate the duplication of instances with a unique identity. // // The caller should therefore not refer anymore to the input argument pointer as // as the object cannot be assumed to be live. if (prop==0) { cout << "RooSharedPropertiesList::ERROR null pointer!:" << endl ; return 0 ; } // Find property with identical uuid in list TIterator* iter = _propList.MakeIterator() ; RooSharedProperties* tmp ; while((tmp=(RooSharedProperties*)iter->Next())) { if (*tmp==*prop && tmp != prop) { // Found another instance of object with identical UUID // Delete incoming instance, increase ref count of already stored instance delete prop ; _propList.Add(tmp) ; // Return pointer to already-stored instance delete iter ; return tmp ; } } delete iter ; _propList.Add(prop) ; return prop ; } void RooSharedPropertiesList::unregisterProperties(RooSharedProperties* prop) { // Decrease reference count _propList.Remove(prop) ; // We own object if ref-counted list. If count drops to zero, delete object if (_propList.refCount(prop)==0) { //cout << "RooSharedPropertiesList::unregisterProperties: deleting property " << prop << endl ; delete prop ; } }