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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
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10  * $Date: 2015-03-11 15:59:09 +0100 (Wed, 11 Mar 2015) $ by $Author: schulte $
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37 
38 #include <gecode/search.hh>
39 
40 namespace Gecode { namespace Search {
41 
42  /*
43  * Creation functions for stop objects
44  *
45  */
46  Stop*
47  Stop::node(unsigned long int l) {
48  return new NodeStop(l);
49  }
50  Stop*
51  Stop::fail(unsigned long int l) {
52  return new FailStop(l);
53  }
54  Stop*
55  Stop::time(unsigned long int l) {
56  return new TimeStop(l);
57  }
58 
59 
60  /*
61  * Stopping for node limit
62  *
63  */
64  bool
65  NodeStop::stop(const Statistics& s, const Options&) {
66  return s.node > l;
67  }
68 
69 
70  /*
71  * Stopping for failure limit
72  *
73  */
74  bool
75  FailStop::stop(const Statistics& s, const Options&) {
76  return s.fail > l;
77  }
78 
79 
80  /*
81  * Stopping for time limit
82  *
83  */
84  bool
85  TimeStop::stop(const Statistics&, const Options&) {
86  return t.stop() > l;
87  }
88 
89 
90 }}
91 
92 // STATISTICS: search-other
unsigned long int l
Node limit.
Definition: search.hh:534
Support::Timer t
Time when execution should stop.
Definition: search.hh:576
Search engine options
Definition: search.hh:446
static Stop * time(unsigned long int l)
Stop if time limit l (in milliseconds) has been exceeded.
Definition: stop.cpp:55
Base-class for Stop-object.
Definition: search.hh:501
unsigned long int fail
Number of failed nodes in search tree.
Definition: search.hh:143
double stop(void)
Get time since start of timer.
Definition: timer.hpp:80
static Stop * fail(unsigned long int l)
Stop if failure limit l has been exceeded.
Definition: stop.cpp:51
static Stop * node(unsigned long int l)
Stop if node limit l has been exceeded.
Definition: stop.cpp:47
unsigned long int l
Current limit in milliseconds.
Definition: search.hh:578
Stop-object based on time
Definition: search.hh:573
Gecode toplevel namespace
virtual bool stop(const Statistics &s, const Options &o)
Return true if time limit is exceeded.
Definition: stop.cpp:85
unsigned long int node
Number of nodes expanded.
Definition: search.hh:145
virtual bool stop(const Statistics &s, const Options &o)
Return true if node limit is exceeded.
Definition: stop.cpp:65
unsigned long int l
Failure limit.
Definition: search.hh:557
Stop-object based on number of nodes
Definition: search.hh:531
NNF * l
Left subtree.
Definition: bool-expr.cpp:244
Stop-object based on number of failures
Definition: search.hh:554
virtual bool stop(const Statistics &s, const Options &o)
Return true if failure limit is exceeded.
Definition: stop.cpp:75
Search engine statistics
Definition: search.hh:140