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tgba/bdddict.hh

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00001 // Copyright (C) 2003  Laboratoire d'Informatique de Paris 6 (LIP6),
00002 // département Systèmes Répartis Coopératifs (SRC), Université Pierre
00003 // et Marie Curie.
00004 //
00005 // This file is part of Spot, a model checking library.
00006 //
00007 // Spot is free software; you can redistribute it and/or modify it
00008 // under the terms of the GNU General Public License as published by
00009 // the Free Software Foundation; either version 2 of the License, or
00010 // (at your option) any later version.
00011 //
00012 // Spot is distributed in the hope that it will be useful, but WITHOUT
00013 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
00014 // or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
00015 // License for more details.
00016 //
00017 // You should have received a copy of the GNU General Public License
00018 // along with Spot; see the file COPYING.  If not, write to the Free
00019 // Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
00020 // 02111-1307, USA.
00021 
00022 #ifndef SPOT_TGBA_BDDDICT_HH
00023 # define SPOT_TGBA_BDDDICT_HH
00024 
00025 #include "misc/hash.hh"
00026 #include <list>
00027 #include <set>
00028 #include <iostream>
00029 #include <bdd.h>
00030 #include "ltlast/formula.hh"
00031 #include "misc/bddalloc.hh"
00032 
00033 namespace spot
00034 {
00035 
00037   class bdd_dict: public bdd_allocator
00038   {
00039   public:
00040 
00041     bdd_dict();
00042     ~bdd_dict();
00043 
00045     typedef Sgi::hash_map<const ltl::formula*, int,
00046                           ptr_hash<ltl::formula> > fv_map;
00048     typedef Sgi::hash_map<int, const ltl::formula*> vf_map;
00049 
00050     fv_map now_map;             
00051     vf_map now_formula_map;     
00052     fv_map var_map;             
00053     vf_map var_formula_map;     
00054     fv_map acc_map;             
00055     vf_map acc_formula_map;     
00056 
00060     bddPair* next_to_now;
00064     bddPair* now_to_next;
00065 
00076     int register_proposition(const ltl::formula* f, const void* for_me);
00077 
00085     void register_propositions(bdd f, const void* for_me);
00086 
00098     int register_state(const ltl::formula* f, const void* for_me);
00099 
00110     int register_acceptance_variable(const ltl::formula* f, const void* for_me);
00111 
00119     void register_acceptance_variables(bdd f, const void* for_me);
00120 
00127     void register_all_variables_of(const void* from_other, const void* for_me);
00128 
00132     void unregister_all_my_variables(const void* me);
00133 
00136     bool is_registered_proposition(const ltl::formula* f, const void* by_me);
00137     bool is_registered_state(const ltl::formula* f, const void* by_me);
00138     bool is_registered_acceptance_variable(const ltl::formula* f,
00139                                           const void* by_me);
00141 
00144     std::ostream& dump(std::ostream& os) const;
00145 
00150     void assert_emptiness() const;
00151 
00152   protected:
00154     typedef Sgi::hash_set<const void*, ptr_hash<void> > ref_set;
00155     typedef Sgi::hash_map<int, ref_set> vr_map;
00156     vr_map var_refs;
00157 
00158   private:
00159     // Disallow copy.
00160     bdd_dict(const bdd_dict& other);
00161     bdd_dict& operator=(const bdd_dict& other);
00162   };
00163 
00164 
00165 }
00166 
00167 #endif // SPOT_TGBA_BDDDICT_HH

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