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// -*- C++ -*-
//=============================================================================
/**
* @file GUI_Resource_Factory.h
*
* $Id$
*
* @author Hamish Friedlander <ullexco@wave.co.nz>
* @author Balachandran Natarajan <bala@cs.wustl.edu>
*/
//=============================================================================
#ifndef TAO_GUI_RESOURCE_FACTORY_H
#define TAO_GUI_RESOURCE_FACTORY_H
#include /**/ "ace/pre.h"
#include /**/ "TAO_Export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
//forwards
class ACE_Reactor_Impl;
class ACE_Reactor;
namespace TAO
{
/** Abstract base class for the GUI resource factory, which will be held in TSS by the ORB Core.
*
* This base class for resource factories which provide GUIReactors integrated with specific GUI
* event loop. In general, children of this class reimplement reactor_impl method where specific
* GUIReactor is created. GUIResource_Factory are usually created by GUIResource_Loader
* subclasses.
*/
class TAO_Export GUIResource_Factory
{
public:
GUIResource_Factory ();
virtual ~GUIResource_Factory ();
/** Create or return current reactor instance.
* Please note that this call is NOT synchronized. Left to the
* higher level versions to synchronize access.
*/
virtual ACE_Reactor_Impl *reactor_impl (void) = 0;
/** Create ACE_Reactor using allocate_reactor_impl.
* Please note that this call is NOT synchronized. Left to the
* higher level versions to synchronize access.
*/
virtual ACE_Reactor *get_reactor (void) ;
/** Reclaim the reactor if allocated by this factory.
* Please note that this call is NOT synchronized. Left to the
* higher level versions to synchronize access.
*/
virtual void reclaim_reactor (ACE_Reactor *);
private:
/**
* Flag that is set to 1 if the reactor obtained from the
* get_reactor() method is dynamically allocated. If this flag is
* set to 1, then the reclaim_reactor() method with call the delete
* operator on the given reactor. This flag is necessary to make
* sure that a reactor not allocated by the default resource factory
* is not reclaimed by the default resource factory. Such a
* situation can occur when a resource factory derived from the
* default one overrides the get_reactor() method but does not
* override the reclaim_reactor() method.
*/
int dynamically_allocated_reactor_;
};
}
#include /**/ "ace/post.h"
#endif /*TAO_GUI_RESOURCE_FACTORY_H*/
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