restart.hh

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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
 *  Main authors:
 *     Christian Schulte <schulte@gecode.org>
 *
 *  Copyright:
 *     Christian Schulte, 2009
 *
 *  Last modified:
 *     $Date: 2009-05-13 14:48:34 +0200 (Wed, 13 May 2009) $ by $Author: schulte $
 *     $Revision: 9085 $
 *
 *  This file is part of Gecode, the generic constraint
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 *     http://www.gecode.org
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#ifndef __GECODE_SEARCH_PARALLEL_RESTART_HH__
#define __GECODE_SEARCH_PARALLEL_RESTART_HH__

#include <gecode/search/parallel/dfs.hh>

namespace Gecode { namespace Search { namespace Parallel {

  class Restart : public DFS {
  protected:
    Space* root;
    Space* best;
    bool reset_needed;
  public:
    Restart(Space* s, size_t sz, const Search::Options& o);
    virtual Space* next(void);
    virtual ~Restart(void);
  };

  forceinline 
  Restart::Restart(Space* s, size_t sz, const Search::Options& o) :
    DFS(s,sz,o),
    root(s->status() == SS_FAILED ? NULL : s->clone()), 
    best(NULL), reset_needed(false) {}

}}}

#endif

// STATISTICS: search-parallel