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stop.cpp
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1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main authors:
4  * Christian Schulte <schulte@gecode.org>
5  *
6  * Copyright:
7  * Christian Schulte, 2006
8  *
9  * Last modified:
10  * $Date: 2013-03-07 22:14:40 +0100 (Thu, 07 Mar 2013) $ by $Author: schulte $
11  * $Revision: 13467 $
12  *
13  * This file is part of Gecode, the generic constraint
14  * development environment:
15  * http://www.gecode.org
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37 
38 #include <gecode/search.hh>
39 
40 namespace Gecode { namespace Search {
41 
42  /*
43  * Stopping for memory limit
44  *
45  */
46  bool
47  MemoryStop::stop(const Statistics& s, const Options&) {
48  return s.memory > l;
49  }
50 
51 
52  /*
53  * Stopping for node limit
54  *
55  */
56  bool
57  NodeStop::stop(const Statistics& s, const Options&) {
58  return s.node > l;
59  }
60 
61 
62  /*
63  * Stopping for failure limit
64  *
65  */
66  bool
67  FailStop::stop(const Statistics& s, const Options&) {
68  return s.fail > l;
69  }
70 
71 
72  /*
73  * Stopping for time limit
74  *
75  */
76  bool
77  TimeStop::stop(const Statistics&, const Options&) {
78  return t.stop() > l;
79  }
80 
81 
82  /*
83  * Stopping for meta search engines
84  *
85  */
86 
87  bool
88  MetaStop::stop(const Statistics& s, const Options& o) {
89  // Stop if the fail stop object for the engine says so
90  if (e_stop->stop(s,o)) {
91  e_stopped = true;
92  m_stat.restart++;
93  return true;
94  }
95  // Stop if the stop object for the meta engine says so
96  if ((m_stop != NULL) && m_stop->stop(m_stat+s,o)) {
97  e_stopped = false;
98  return true;
99  }
100  return false;
101  }
102 
103 }}
104 
105 // STATISTICS: search-other