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