shared-data.hpp
Go to the documentation of this file.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, 2017 00008 * 00009 * Last modified: 00010 * $Date: 2017-02-10 02:39:13 +0100 (Fri, 10 Feb 2017) $ by $Author: schulte $ 00011 * $Revision: 15401 $ 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 namespace Gecode { 00039 00041 template<class Data> 00042 class SharedData : public SharedHandle { 00043 protected: 00045 class SDO : public SharedHandle::Object { 00046 public: 00048 const Data d; 00050 SDO(const Data& d0); 00052 SDO(const SDO& sdo); 00054 virtual Object* copy(void) const; 00056 virtual ~SDO(void); 00057 }; 00058 public: 00060 SharedData(const Data& d); 00062 SharedData(void); 00064 SharedData(const SharedData& sd); 00066 SharedData& operator =(const SharedData& sd); 00068 const Data& operator ()(void) const; 00070 void update(Space& home, bool share, SharedHandle& sh); 00072 ~SharedData(void); 00073 }; 00074 00075 00076 template<class Data> 00077 forceinline 00078 SharedData<Data>::SDO::SDO(const Data& d0) 00079 : d(d0) {} 00080 00081 template<class Data> 00082 forceinline 00083 SharedData<Data>::SDO::SDO(const SDO& sdo) 00084 : d(sdo.d) {} 00085 00086 template<class Data> 00087 forceinline SharedHandle::Object* 00088 SharedData<Data>::SDO::copy(void) const { 00089 return new SDO(*this); 00090 } 00091 00092 template<class Data> 00093 forceinline 00094 SharedData<Data>::SDO::~SDO(void) {} 00095 00096 00097 template<class Data> 00098 forceinline 00099 SharedData<Data>::SharedData(const Data& d) 00100 : SharedHandle(new SDO(d)) {} 00101 00102 template<class Data> 00103 forceinline 00104 SharedData<Data>::SharedData(void) {} 00105 00106 template<class Data> 00107 forceinline 00108 SharedData<Data>::SharedData(const SharedData<Data>& sd) 00109 : SharedHandle(sd) {} 00110 00111 template<class Data> 00112 forceinline SharedData<Data>& 00113 SharedData<Data>::operator =(const SharedData<Data>& sd) { 00114 return static_cast<SharedData&>(SharedHandle::operator =(sd)); 00115 } 00116 00117 template<class Data> 00118 forceinline const Data& 00119 SharedData<Data>::operator ()(void) const { 00120 return static_cast<SDO*>(object())->d; 00121 } 00122 00123 template<class Data> 00124 forceinline void 00125 SharedData<Data>::update(Space& home, bool share, SharedHandle& sh) { 00126 SharedHandle::update(home,share,sh); 00127 } 00128 00129 template<class Data> 00130 forceinline 00131 SharedData<Data>::~SharedData(void) {} 00132 00133 } 00134 00135 // STATISTICS: kernel-other