siscone/hash.h

// -*- C++ -*-
// File: hash.h                                                              //
// Description: header file for classes hash_element and hash_cones          //
// This file is part of the SISCone project.                                 //
// For more details, see http://projects.hepforge.org/siscone                //
//                                                                           //
// Copyright (c) 2006 Gavin Salam and Gregory Soyez                          //
//                                                                           //
// This program is free software; you can redistribute it and/or modify      //
// it under the terms of the GNU General Public License as published by      //
// the Free Software Foundation; either version 2 of the License, or         //
// (at your option) any later version.                                       //
//                                                                           //
// This program is distributed in the hope that it will be useful,           //
// but WITHOUT ANY WARRANTY; without even the implied warranty of            //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             //
// GNU General Public License for more details.                              //
//                                                                           //
// You should have received a copy of the GNU General Public License         //
// along with this program; if not, write to the Free Software               //
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA //
//                                                                           //
// $Revision:: 224                                                          $//
// $Date:: 2008-05-16 19:58:30 +0200 (Fri, 16 May 2008)                     $//

#ifndef __HASH_H__
#define __HASH_H__

#include "momentum.h"
#include "reference.h"

namespace siscone{

class hash_element{
 public:
  Creference ref;      
  double eta;          
  double phi;          
  bool is_stable;      

  hash_element *next;  
};

class hash_cones{
 public:
  hash_cones(int _Np, double _R2);

  ~hash_cones();

  int insert(Cmomentum *v, Cmomentum *parent, Cmomentum *child, bool p_io, bool c_io);

  int insert(Cmomentum *v);

  hash_element **hash_array;

  int n_cones;

#ifdef DEBUG_STABLE_CONES
  int n_occupied_cells;
#endif

  int mask;

  double R2;

  inline bool is_inside(Cmomentum *centre, Cmomentum *v);
};

}
#endif