49 lines
2.0 KiB
C++
49 lines
2.0 KiB
C++
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/***********************************************************************************
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CryptoMiniSat -- Copyright (c) 2009 Mate Soos
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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**************************************************************************************************/
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#include "StateSaver.h"
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StateSaver::StateSaver(Solver& _solver) :
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solver(_solver)
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, backup_order_heap(Solver::VarOrderLt(solver.activity))
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{
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//Saving Solver state
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backup_var_inc = solver.var_inc;
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backup_activity.growTo(solver.activity.size());
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std::copy(solver.activity.getData(), solver.activity.getDataEnd(), backup_activity.getData());
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backup_order_heap = solver.order_heap;
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backup_polarities = solver.polarity;
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backup_restartType = solver.restartType;
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backup_random_var_freq = solver.random_var_freq;
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backup_propagations = solver.propagations;
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}
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void StateSaver::restore()
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{
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//Restore Solver state
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solver.var_inc = backup_var_inc;
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std::copy(backup_activity.getData(), backup_activity.getDataEnd(), solver.activity.getData());
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solver.order_heap = backup_order_heap;
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solver.polarity = backup_polarities;
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solver.restartType = backup_restartType;
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solver.random_var_freq = backup_random_var_freq;
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//Finally, clear the order_heap from variables set/non-decisionned
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solver.order_heap.filter(Solver::VarFilter(solver));
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solver.propagations = backup_propagations;
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}
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