Changes in src/World.cpp [93d732b:70378e]

File:

• src/World.cpp (modified) (2 diffs)

src/World.cpp

@@ -1 +1 @@
 /*
- * World.cpp
+ * world.cpp
  *
- *  Created on: Feb 3, 2010
+ *  Created on: Mar 3, 2010
  *      Author: crueger
  */
@@ -8 +8 @@
 #include "World.hpp"
 
-#include "atom.hpp"
-#include "config.hpp"
-#include "molecule.hpp"
-#include "periodentafel.hpp"
-#include "Descriptors/AtomDescriptor.hpp"
-#include "Descriptors/AtomDescriptor_impl.hpp"
-#include "Descriptors/MoleculeDescriptor.hpp"
-#include "Descriptors/MoleculeDescriptor_impl.hpp"
-#include "Descriptors/SelectiveIterator_impl.hpp"
-#include "Actions/ManipulateAtomsProcess.hpp"
+double *World::cell_size = 0;
 
-#include "Patterns/Singleton_impl.hpp"
+/** Constructor of World.
+ *
+ */
+World::World()
+{
+  cell_size = new double[6];
+};
 
-using namespace std;
-
-/******************************* getter and setter ************************/
-periodentafel *&World::getPeriode(){
-  return periode;
-}
-
-config *&World::getConfig(){
-  return configuration;
-}
-
-// Atoms
-
-atom* World::getAtom(AtomDescriptor descriptor){
-  return descriptor.find();
-}
-
-vector<atom*> World::getAllAtoms(AtomDescriptor descriptor){
-  return descriptor.findAll();
-}
-
-vector<atom*> World::getAllAtoms(){
-  return getAllAtoms(AllAtoms());
-}
-
-int World::numAtoms(){
-  return atoms.size();
-}
-
-// Molecules
-
-molecule *World::getMolecule(MoleculeDescriptor descriptor){
-  return descriptor.find();
-}
-
-std::vector<molecule*> World::getAllMolecules(MoleculeDescriptor descriptor){
-  return descriptor.findAll();
-}
-
-std::vector<molecule*> World::getAllMolecules(){
-  return getAllMolecules(AllMolecules());
-}
-
-int World::numMolecules(){
-  return molecules_deprecated->ListOfMolecules.size();
-}
-
-// system
-
-double * World::getDomain() {
-  return cell_size;
-}
-
-void World::setDomain(double * matrix)
+/** Destructor of World.
+ *
+ */
+World::~World()
 {
-
-}
-
-char * World::getDefaultName() {
-  return defaultName;
-}
-
-void World::setDefaultName(char * name)
-{
-  delete[](defaultName);
-  const int length = strlen(name);
-  if (length < MAXSTRINGSIZE) {
-    defaultName = new char[length+2];
-    strncpy(defaultName, name, length);
-  } else {
-    defaultName = new char[MAXSTRINGSIZE];
-    strncpy(defaultName, "none", MAXSTRINGSIZE-1);
-  }
+  delete[](cell_size);
 };
 
 
-/******************** Methods to change World state *********************/
+// TODO: Hide boost-thread using Autotools stuff when no threads are used
+World* World::theWorld = 0;
 
-molecule* World::createMolecule(){
-  OBSERVE;
-  molecule *mol = NULL;
-  mol = NewMolecule();
-  assert(!molecules.count(currMoleculeId));
-  mol->setId(currMoleculeId++);
-  // store the molecule by ID
-  molecules[mol->getId()] = mol;
-  mol->signOn(this);
-  return mol;
+
+World* World::get(){
+  // boost supports RAII-Style locking, so we don't need to unlock
+  if(!theWorld) {
+    theWorld = new World();
+  }
+  return theWorld;
 }
 
-void World::destroyMolecule(molecule* mol){
-  OBSERVE;
-  destroyMolecule(mol->getId());
+void World::destroy(){
+  delete theWorld;
+  theWorld = 0;
 }
 
-void World::destroyMolecule(moleculeId_t id){
-  OBSERVE;
-  molecule *mol = molecules[id];
-  assert(mol);
-  DeleteMolecule(mol);
-  molecules.erase(id);
+World* World::reset(){
+  World* oldWorld = 0;
+  {
+    oldWorld = theWorld;
+    theWorld = new World();
+    // oldworld does not need protection any more,
+    // since we should have the only reference
+
+    // worldLock handles access to the pointer,
+    // not to the object
+  } // scope-end releases the lock
+
+  // we have to let all the observers know that the
+  // oldWorld was destroyed. oldWorld calls subjectKilled
+  // upon destruction. Every Observer getting that signal
+  // should see that it gets the updated new world
+  delete oldWorld;
 }
-
-double *World::cell_size = NULL;
-char *World::defaultName = NULL;
-
-atom *World::createAtom(){
-  OBSERVE;
-  atomId_t id = getNextAtomId();
-  atom *res = NewAtom(id);
-  res->setWorld(this);
-  // store the atom by ID
-  atoms[res->getId()] = res;
-  return res;
-}
-
-
-int World::registerAtom(atom *atom){
-  OBSERVE;
-  atomId_t id = getNextAtomId();
-  atom->setId(id);
-  atom->setWorld(this);
-  atoms[atom->getId()] = atom;
-  return atom->getId();
-}
-
-void World::destroyAtom(atom* atom){
-  OBSERVE;
-  int id = atom->getId();
-  destroyAtom(id);
-}
-
-void World::destroyAtom(atomId_t id) {
-  OBSERVE;
-  atom *atom = atoms[id];
-  assert(atom);
-  DeleteAtom(atom);
-  atoms.erase(id);
-  releaseAtomId(id);
-}
-
-bool World::changeAtomId(atomId_t oldId, atomId_t newId, atom* target){
-  OBSERVE;
-  // in case this call did not originate from inside the atom, we redirect it,
-  // to also let it know that it has changed
-  if(!target){
-    target = atoms[oldId];
-    assert(target && "Atom with that ID not found");
-    return target->changeId(newId);
-  }
-  else{
-    if(reserveAtomId(newId)){
-      atoms.erase(oldId);
-      atoms.insert(pair<atomId_t,atom*>(newId,target));
-      return true;
-    }
-    else{
-      return false;
-    }
-  }
-}
-
-ManipulateAtomsProcess* World::manipulateAtoms(boost::function<void(atom*)> op,std::string name,AtomDescriptor descr){
-  return new ManipulateAtomsProcess(op, descr,name,true);
-}
-
-ManipulateAtomsProcess* World::manipulateAtoms(boost::function<void(atom*)> op,std::string name){
-  return manipulateAtoms(op,name,AllAtoms());
-}
-
-/********************* Internal Change methods for double Callback and Observer mechanism ********/
-
-void World::doManipulate(ManipulateAtomsProcess *proc){
-  proc->signOn(this);
-  {
-    OBSERVE;
-    proc->doManipulate(this);
-  }
-  proc->signOff(this);
-}
-/******************************* IDManagement *****************************/
-
-// Atoms
-
-atomId_t World::getNextAtomId(){
-  // see if we can reuse some Id
-  if(atomIdPool.empty()){
-    return currAtomId++;
-  }
-  else{
-    // we give out the first ID from the pool
-    atomId_t id = *(atomIdPool.begin());
-    atomIdPool.erase(id);
-    return id;
-  }
-}
-
-void World::releaseAtomId(atomId_t id){
-  atomIdPool.insert(id);
-  // defragmentation of the pool
-  set<atomId_t>::reverse_iterator iter;
-  // go through all Ids in the pool that lie immediately below the border
-  while(!atomIdPool.empty() && *(atomIdPool.rbegin())==(currAtomId-1)){
-    atomIdPool.erase(--currAtomId);
-  }
-}
-
-bool World::reserveAtomId(atomId_t id){
-  if(id>=currAtomId ){
-    // add all ids between the new one and current border as available
-    for(atomId_t pos=currAtomId; pos<id; ++pos){
-      atomIdPool.insert(pos);
-    }
-    currAtomId=id+1;
-    return true;
-  }
-  else if(atomIdPool.count(id)){
-    atomIdPool.erase(id);
-    return true;
-  }
-  else{
-    // this ID could not be reserved
-    return false;
-  }
-}
-
-// Molecules
-
-/******************************* Iterators ********************************/
-
-// Build the AtomIterator from template
-CONSTRUCT_SELECTIVE_ITERATOR(atom*,World::AtomSet,AtomDescriptor);
-
-
-World::AtomIterator World::getAtomIter(AtomDescriptor descr){
-  return AtomIterator(descr,atoms);
-}
-
-World::AtomIterator World::atomEnd(){
-  return AtomIterator(AllAtoms(),atoms,atoms.end());
-}
-
-// build the MoleculeIterator from template
-CONSTRUCT_SELECTIVE_ITERATOR(molecule*,World::MoleculeSet,MoleculeDescriptor);
-
-World::MoleculeIterator World::getMoleculeIter(MoleculeDescriptor descr){
-  return MoleculeIterator(descr,molecules);
-}
-
-World::MoleculeIterator World::moleculeEnd(){
-  return MoleculeIterator(AllMolecules(),molecules,molecules.end());
-}
-
-/******************************* Singleton Stuff **************************/
-
-World::World() :
-    periode(new periodentafel),
-    configuration(new config),
-    atoms(),
-    currAtomId(0),
-    molecules(),
-    currMoleculeId(0),
-    molecules_deprecated(new MoleculeListClass(this))
-{
-  cell_size = new double[6];
-  cell_size[0] = 20.;
-  cell_size[1] = 0.;
-  cell_size[2] = 20.;
-  cell_size[3] = 0.;
-  cell_size[4] = 0.;
-  cell_size[5] = 20.;
-  defaultName = new char[MAXSTRINGSIZE];
-  strcpy(defaultName, "none");
-  molecules_deprecated->signOn(this);
-}
-
-World::~World()
-{
-  molecules_deprecated->signOff(this);
-  delete[] cell_size;
-  delete[] defaultName;
-  delete molecules_deprecated;
-  delete periode;
-  delete configuration;
-  MoleculeSet::iterator molIter;
-  for(molIter=molecules.begin();molIter!=molecules.end();++molIter){
-    DeleteMolecule((*molIter).second);
-  }
-  molecules.clear();
-  AtomSet::iterator atIter;
-  for(atIter=atoms.begin();atIter!=atoms.end();++atIter){
-    DeleteAtom((*atIter).second);
-  }
-  atoms.clear();
-}
-
-// Explicit instantiation of the singleton mechanism at this point
-
-CONSTRUCT_SINGLETON(World)
-
-/******************************* deprecated Legacy Stuff ***********************/
-
-MoleculeListClass *&World::getMolecules() {
-  return molecules_deprecated;
-}