00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */ 00002 /* 00003 * Main authors: 00004 * Christian Schulte <schulte@gecode.org> 00005 * 00006 * Copyright: 00007 * Christian Schulte, 2006 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 #include <gecode/search.hh> 00039 00040 namespace Gecode { namespace Search { 00041 00042 /* 00043 * Stopping for node limit 00044 * 00045 */ 00046 bool 00047 NodeStop::stop(const Statistics& s, const Options&) { 00048 return s.node > l; 00049 } 00050 00051 00052 /* 00053 * Stopping for failure limit 00054 * 00055 */ 00056 bool 00057 FailStop::stop(const Statistics& s, const Options&) { 00058 return s.fail > l; 00059 } 00060 00061 00062 /* 00063 * Stopping for time limit 00064 * 00065 */ 00066 bool 00067 TimeStop::stop(const Statistics&, const Options&) { 00068 return t.stop() > l; 00069 } 00070 00071 00072 /* 00073 * Stopping for meta search engines 00074 * 00075 */ 00076 00077 bool 00078 MetaStop::stop(const Statistics& s, const Options& o) { 00079 // Stop if the fail stop object for the engine says so 00080 if (e_stop->stop(s,o)) { 00081 e_stopped = true; 00082 m_stat.restart++; 00083 return true; 00084 } 00085 // Stop if the stop object for the meta engine says so 00086 if ((m_stop != NULL) && m_stop->stop(m_stat+s,o)) { 00087 e_stopped = false; 00088 return true; 00089 } 00090 return false; 00091 } 00092 00093 }} 00094 00095 // STATISTICS: search-other