cumulatives.hh
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00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */ 00002 /* 00003 * Main authors: 00004 * Mikael Lagerkvist <lagerkvist@gecode.org> 00005 * 00006 * Copyright: 00007 * Mikael Lagerkvist, 2005 00008 * 00009 * Last modified: 00010 * $Date: 2009-10-12 17:36:53 +0200 (Mon, 12 Oct 2009) $ by $Author: schulte $ 00011 * $Revision: 9878 $ 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 #ifndef __GECODE_SCHEDULING_CUMULATIVES_HH__ 00039 #define __GECODE_SCHEDULING_CUMULATIVES_HH__ 00040 00041 #include <gecode/scheduling.hh> 00042 00043 namespace Gecode { namespace Scheduling { namespace Cumulatives { 00044 00089 template<class ViewM, class ViewD, class ViewH, class View> 00090 class Val : public Propagator { 00091 protected: 00092 ViewArray<ViewM> machine; 00093 ViewArray<View> start; 00094 ViewArray<ViewD> duration; 00095 ViewArray<View> end; 00096 ViewArray<ViewH> height; 00097 SharedArray<int> limit; 00098 const bool at_most; 00099 00100 Val(Space& home, bool share, Val<ViewM, ViewD, ViewH, View>& p); 00101 Val(Home home, const ViewArray<ViewM>&, const ViewArray<View>&, 00102 const ViewArray<ViewD>&, const ViewArray<View>&, 00103 const ViewArray<ViewH>&, const SharedArray<int>&, bool); 00104 00105 ExecStatus prune(Space& home, int low, int up, int r, 00106 int ntask, int sheight, 00107 int* contribution, 00108 int* prune_tasks, int& prune_tasks_size); 00109 public: 00111 virtual Actor* copy(Space& home, bool share); 00113 virtual PropCost cost(const Space& home, const ModEventDelta& med) const; 00115 virtual ExecStatus propagate(Space& home, const ModEventDelta& med); 00117 static ExecStatus post(Home home, const ViewArray<ViewM>&, 00118 const ViewArray<View>&, const ViewArray<ViewD>&, 00119 const ViewArray<View>&, const ViewArray<ViewH>&, 00120 const SharedArray<int>&, bool); 00122 virtual size_t dispose(Space& home); 00123 }; 00124 00125 00126 }}} 00127 00128 #include <gecode/scheduling/cumulatives/val.hpp> 00129 00130 #endif 00131 00132 // STATISTICS: scheduling-prop 00133