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dekker.one
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, 2017
8 *
9 * This file is part of Gecode, the generic constraint
10 * development environment:
11 * http://www.gecode.org
12 *
13 * Permission is hereby granted, free of charge, to any person obtaining
14 * a copy of this software and associated documentation files (the
15 * "Software"), to deal in the Software without restriction, including
16 * without limitation the rights to use, copy, modify, merge, publish,
17 * distribute, sublicense, and/or sell copies of the Software, and to
18 * permit persons to whom the Software is furnished to do so, subject to
19 * the following conditions:
20 *
21 * The above copyright notice and this permission notice shall be
22 * included in all copies or substantial portions of the Software.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 *
32 */
33
34namespace Gecode {
35
36 /// Class for sharing data between spaces
37 template<class Data>
38 class SharedData : public SharedHandle {
39 protected:
40 /// The object storing the actual data
41 class SDO : public SharedHandle::Object {
42 public:
43 /// Data to be shared
44 const Data d;
45 /// Initialization
46 SDO(const Data& d0);
47 /// Destructor
48 virtual ~SDO(void);
49 };
50 public:
51 /// Initialize with data \a d
52 SharedData(const Data& d);
53 /// Create as uninitialized
54 SharedData(void);
55 /// Copy constructor
56 SharedData(const SharedData& sd);
57 /// Assignment operator
58 SharedData& operator =(const SharedData& sd);
59 /// Provide access to data
60 const Data& operator ()(void) const;
61 /// Destructors
62 ~SharedData(void);
63 };
64
65
66 template<class Data>
67 forceinline
68 SharedData<Data>::SDO::SDO(const Data& d0)
69 : d(d0) {}
70
71 template<class Data>
72 forceinline
73 SharedData<Data>::SDO::~SDO(void) {}
74
75
76 template<class Data>
77 forceinline
78 SharedData<Data>::SharedData(const Data& d)
79 : SharedHandle(new SDO(d)) {}
80
81 template<class Data>
82 forceinline
83 SharedData<Data>::SharedData(void) {}
84
85 template<class Data>
86 forceinline
87 SharedData<Data>::SharedData(const SharedData<Data>& sd)
88 : SharedHandle(sd) {}
89
90 template<class Data>
91 forceinline SharedData<Data>&
92 SharedData<Data>::operator =(const SharedData<Data>& sd) {
93 return static_cast<SharedData&>(SharedHandle::operator =(sd));
94 }
95
96 template<class Data>
97 forceinline const Data&
98 SharedData<Data>::operator ()(void) const {
99 return static_cast<SDO*>(object())->d;
100 }
101
102 template<class Data>
103 forceinline
104 SharedData<Data>::~SharedData(void) {}
105
106}
107
108// STATISTICS: kernel-other