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/******************************************************************************
* SOFA, Simulation Open-Framework Architecture, version 1.0 beta 4 *
* (c) 2006-2009 MGH, INRIA, USTL, UJF, CNRS *
* *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 of the License, or (at *
* your option) any later version. *
* *
* This library 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 Lesser General Public License *
* for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
*******************************************************************************
* SOFA :: Modules *
* *
* Authors: The SOFA Team and external contributors (see Authors.txt) *
* *
* Contact information: contact@sofa-framework.org *
******************************************************************************/
#ifndef SOFA_SIMULATION_TREE_CACTUSSTACKSTORAGE_H
#define SOFA_SIMULATION_TREE_CACTUSSTACKSTORAGE_H
#include <sofa/simulation/common/common.h>
#include <sofa/simulation/common/LocalStorage.h>
#include <stack>
namespace sofa
{
namespace simulation
{
/// Cactus Stack implementation of LocalStorage.
/// See http://www.nist.gov/dads/HTML/cactusstack.html
class SOFA_SIMULATION_COMMON_API CactusStackStorage : public simulation::LocalStorage
{
protected:
CactusStackStorage* up; ///< This point to the parent stack
CactusStackStorage* down; ///< This point to the *array* of child stacks
std::stack<void*> stack;
public:
CactusStackStorage()
: up(NULL), down(NULL)
{
}
void setParent(CactusStackStorage* parent)
{
up = parent;
}
void setChildren(CactusStackStorage* children)
{
down = children;
}
CactusStackStorage* getParent()
{
return up;
}
CactusStackStorage* getChildren()
{
return down;
}
void push(void* data);
void* pop();
void* top() const;
bool empty() const;
virtual const char* getClassName() const { return "CactusStackStorage"; }
};
} // namespace simulation
} // namespace sofa
#endif
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