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// Copyright (C) by Josh Blum. See LICENSE.txt for licensing information.
#ifndef INCLUDED_GRAS_WEAK_CONTAINER_HPP
#define INCLUDED_GRAS_WEAK_CONTAINER_HPP
#include <gras/gras.hpp>
#include <boost/shared_ptr.hpp>
namespace gras
{
/*!
* Weak Container interface class:
* A weak container is an object with a method called lock.
* Lock gets a reference to an object's parent container.
* The weak container itself does not actually hold a reference.
* This container class is shared_ptr, a Pyobject, anything.
*/
struct GRAS_API WeakContainer
{
WeakContainer(void);
virtual ~WeakContainer(void);
//! Lock creates a shared pointer holding a container reference
virtual boost::shared_ptr<const void> lock(void) = 0;
};
} //namespace gras
#endif /*INCLUDED_GRAS_WEAK_CONTAINER_HPP*/
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