G4ITReaction.cc

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/*
 * G4ITReactionInfo.cc
 *
 *  Created on: 1 févr. 2015
 *      Author: matkara
 */

#include <G4ITReaction.hh>
#include "globals.hh"

//G4ThreadLocal std::set<G4ITReaction*>* G4ITReaction::gAll(0);

G4ThreadLocal G4ITReactionSet* G4ITReactionSet::fpInstance(0);

bool compReactionPerTime::operator()(G4ITReactionPtr rhs,
                                     G4ITReactionPtr lhs) const
{
  double time1 = rhs->GetTime();
  double time2 = lhs->GetTime();
  if (time1 == time2)
  {
    return rhs->GetHash() < lhs->GetHash();
  }
  return rhs->GetTime() < lhs->GetTime();
}


template<class T>
inline void hash_combine(std::size_t& seed,
                         const T& v)
{
//  std::hash<T> hasher;
  seed ^= /*std::hash<T>(v)*/ v + 0x9e3779b9 + (seed << 6) + (seed >> 2);
}

std::size_t G4ITReaction::GetHash() const
{
  std::size_t hash = 0;
  hash_combine(hash, fReactants.first->GetTrackID());
  hash_combine(hash, fReactants.first->GetTrackID());
  return hash;
}

G4ITReaction::G4ITReaction(double time, G4Track* trackA, G4Track* trackB) :
  G4enable_shared_from_this<G4ITReaction>(),
  fTime(time),
  fReactants(trackA,trackB)
{
  //if(gAll == 0) gAll = new std::set<G4ITReaction*>();
  //gAll->insert(this);

  fReactionPerTimeIt = 0;
}

G4ITReaction::~G4ITReaction()
{
  //gAll->erase(this);
  if(fReactionPerTimeIt) delete fReactionPerTimeIt;
}

void G4ITReaction::RemoveMe()
{
  G4ITReactionPtr backMeUp = this->shared_from_this();
  for(G4ReactionPerTrackIt::iterator it = fReactionPerTrack.begin() ;
      it != fReactionPerTrack.end() ; ++it)
  {
    // G4cout << it->first.get() << G4endl;
    // assert(it->first.get() != 0);
    it->first->RemoveThisReaction(it->second);
  }
  fReactionPerTrack.clear();

  if(fReactionPerTimeIt)
  {
   G4ITReactionSet::Instance()->GetReactionsPerTime().erase(*fReactionPerTimeIt);
   delete fReactionPerTimeIt;
   fReactionPerTimeIt = 0;
  }
}

bool G4ITReactionPerTrack::RemoveThisReaction(G4ITReactionList::iterator it)
{
  // G4cout << "G4ITReactionPerTrack::RemoveReaction" << G4endl;
  fReactions.erase(it);
  if(fReactions.empty())
  {
    // G4cout << "G4ITReactionPerTrack is empty" << G4endl;
    G4ITReactionSet::Instance()->RemoveReactionPerTrack(this->shared_from_this());
    return true;
  }
  return false;
}