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rbs.hh
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00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
00002 /*
00003  *  Main authors:
00004  *     Guido Tack <tack@gecode.org>
00005  *
00006  *  Copyright:
00007  *     Guido Tack, 2012
00008  *
00009  *  Last modified:
00010  *     $Date: 2013-07-11 12:30:18 +0200 (Thu, 11 Jul 2013) $ by $Author: schulte $
00011  *     $Revision: 13840 $
00012  *
00013  *  This file is part of Gecode, the generic constraint
00014  *  development environment:
00015  *     http://www.gecode.org
00016  *
00017  *  Permission is hereby granted, free of charge, to any person obtaining
00018  *  a copy of this software and associated documentation files (the
00019  *  "Software"), to deal in the Software without restriction, including
00020  *  without limitation the rights to use, copy, modify, merge, publish,
00021  *  distribute, sublicense, and/or sell copies of the Software, and to
00022  *  permit persons to whom the Software is furnished to do so, subject to
00023  *  the following conditions:
00024  *
00025  *  The above copyright notice and this permission notice shall be
00026  *  included in all copies or substantial portions of the Software.
00027  *
00028  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00029  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00030  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00031  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
00032  *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
00033  *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00034  *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00035  *
00036  */
00037 
00038 
00039 #ifndef __GECODE_SEARCH_META_RBS_HH__
00040 #define __GECODE_SEARCH_META_RBS_HH__
00041 
00042 #include <gecode/search.hh>
00043 
00044 namespace Gecode { namespace Search { namespace Meta {
00045 
00047   class RBS : public Engine {
00048   private:
00050     Engine* e;
00052     Space* master;
00054     Cutoff* co;
00056     MetaStop* stop;
00058     bool shared;
00060     GECODE_SEARCH_EXPORT
00061     static NoGoods eng;
00062   public:
00064     RBS(Space* s, Cutoff* co0, MetaStop* stop0,
00065         Engine* e0, const Options& o);
00067     virtual Space* next(void);
00069     virtual Search::Statistics statistics(void) const;
00071     virtual bool stopped(void) const;
00073     virtual void reset(Space* s);
00075     virtual NoGoods& nogoods(void);
00077     virtual ~RBS(void);
00078   };
00079 
00080   forceinline
00081   RBS::RBS(Space* s, Cutoff* co0, MetaStop* stop0,
00082            Engine* e0, const Options& opt)
00083     : e(e0), master(s), co(co0), stop(stop0), 
00084       shared(opt.threads == 1) {
00085     stop->limit(Statistics(),(*co)());
00086   }
00087 
00088 }}}
00089 
00090 #endif
00091 
00092 // STATISTICS: search-other