ContextPool.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* ResolverQueue.h
 *
 * Copyright (C) 2007 SUSE Linux Products GmbH
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 * 02111-1307, USA.
 */

#ifndef ZYPP_SOLVER_DETAIL_CONTEXTPOOL_H
#define ZYPP_SOLVER_DETAIL_CONTEXTPOOL_H

#include <iosfwd>
#include <list>
#include <map>
#include <string>

#include "zypp/base/ReferenceCounted.h"
#include "zypp/base/NonCopyable.h"
#include "zypp/base/PtrTypes.h"

#include "zypp/solver/detail/Types.h"
#include "zypp/solver/detail/QueueItem.h"

#include "zypp/Capability.h"

namespace zypp
{ 

  namespace solver
  { 

    namespace detail
    { 

        
typedef std::list <ResolverContext_Ptr> ResolverContextList;

//
//      CLASS NAME : ContextPool
class ContextPool : public base::ReferenceCounted, private base::NonCopyable {

  private:
    unsigned maxContext;
    ResolverContextList contextList;

  public:
    ContextPool ();
    ContextPool (const int maxCount);
    virtual ~ContextPool();

    // ---------------------------------- I/O

    friend std::ostream& operator<<(std::ostream&, const ContextPool & contextPool);


    // ---------------------------------- methods
    int contextListSize() const { return contextList.size(); }
    void addContext (ResolverContext_Ptr context,
                     const PoolItemList & installItems,
                     const PoolItemList & deleteItems,
                     const PoolItemList & lockUninstalledItems,
                     const PoolItemList & keepItems);
    ResolverContext_Ptr findContext (PoolItemList & installItems,
                                     PoolItemList & deleteItems,
                                     const PoolItemList & lockUninstalledItems,
                                     const PoolItemList & keepItems);

    void reset () { contextList.clear(); }
    
};
    };// namespace detail
  };// namespace solver
};// namespace zypp

#endif // ZYPP_SOLVER_DETAIL_CONTEXTPOOL_H

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