windows-xp/Source/XPSP1/NT/admin/wmi/wbem/common/containers/tpqueue.cpp

#ifndef __TREEPRIORITYQUEUE_CPP
#define __TREEPRIORITYQUEUE_CPP

/* 
 *	Class:
 *
 *		WmiAllocator
 *
 *	Description:
 *
 *		Provides abstraction above heap allocation functions
 *
 *	Version:
 *
 *		Initial
 *
 *	Last Changed:
 *
 *		See Source Depot for change history
 *
 */

#if 0

#include <precomp.h>
#include <windows.h>
#include <stdio.h>

#include <TPQueue.h>

#endif

/******************************************************************************
 *
 *	Name:
 *
 *	
 *  Description:
 *
 *	
 *****************************************************************************/

template <class WmiKey,class WmiElement>
WmiTreePriorityQueue <WmiKey,WmiElement> :: WmiTreePriorityQueue ( 

	WmiAllocator &a_Allocator

) :	m_Allocator ( a_Allocator ) ,
	m_Tree ( a_Allocator )
{
}

/******************************************************************************
 *
 *	Name:
 *
 *	
 *  Description:
 *
 *	
 *****************************************************************************/

template <class WmiKey,class WmiElement>
WmiTreePriorityQueue <WmiKey,WmiElement> :: ~WmiTreePriorityQueue ()
{
	WmiStatusCode t_StatusCode = UnInitialize () ;
}

/******************************************************************************
 *
 *	Name:
 *
 *	
 *  Description:
 *
 *	
 *****************************************************************************/

template <class WmiKey,class WmiElement>
WmiStatusCode WmiTreePriorityQueue <WmiKey,WmiElement> :: Initialize ()
{
	WmiStatusCode t_StatusCode = e_StatusCode_Success ;

	t_StatusCode = m_Tree.Initialize () ;

	return t_StatusCode ;
}

/******************************************************************************
 *
 *	Name:
 *
 *	
 *  Description:
 *
 *	
 *****************************************************************************/

template <class WmiKey,class WmiElement>
WmiStatusCode WmiTreePriorityQueue <WmiKey,WmiElement> :: UnInitialize ()
{
	WmiStatusCode t_StatusCode = e_StatusCode_Success ;

	t_StatusCode = m_Tree.UnInitialize () ;

	return t_StatusCode ;
}

/******************************************************************************
 *
 *	Name:
 *
 *	
 *  Description:
 *
 *	
 *****************************************************************************/

template <class WmiKey,class WmiElement>
WmiStatusCode WmiTreePriorityQueue <WmiKey,WmiElement> :: EnQueue ( 

	const WmiKey &a_Key , 
	const WmiElement &a_Element
)
{
	WmiStatusCode t_StatusCode = e_StatusCode_Success ;

	WmiBasicTree <WmiKey,WmiElement> :: Iterator t_Iterator ;

	t_StatusCode = m_Tree.Insert ( a_Key , a_Element , t_Iterator ) ;

	return t_StatusCode ;
}

/******************************************************************************
 *
 *	Name:
 *
 *	
 *  Description:
 *
 *	
 *****************************************************************************/

template <class WmiKey,class WmiElement>
WmiStatusCode WmiTreePriorityQueue <WmiKey,WmiElement> :: Top (

	Iterator &a_Iterator
)
{
	WmiStatusCode t_StatusCode = e_StatusCode_Success ;

	if ( m_Tree.Size () )
	{
		a_Iterator = m_Tree.Begin () ;
	}
	else
	{
		t_StatusCode = e_StatusCode_NotInitialized ;
	}

	return t_StatusCode ;
}

/******************************************************************************
 *
 *	Name:
 *
 *	
 *  Description:
 *
 *	
 *****************************************************************************/

template <class WmiKey,class WmiElement>
WmiStatusCode WmiTreePriorityQueue <WmiKey,WmiElement> :: Top (

	WmiKey &a_Key , 
	WmiElement &a_Element
)
{
	WmiStatusCode t_StatusCode = e_StatusCode_Success ;

	if ( m_Tree.Size () )
	{
		WmiBasicTree <WmiKey,WmiElement> :: Iterator t_Iterator ;

		t_Iterator = m_Tree.Begin () ;

		try
		{
			a_Key = t_Iterator.GetKey () ;
			a_Element = t_Iterator.GetElement () ;
		}
		catch ( Wmi_Heap_Exception &a_Exception )
		{
			return e_StatusCode_OutOfMemory ;
		}
		catch ( ... )
		{
			return e_StatusCode_Unknown ;
		}
	}
	else
	{
		t_StatusCode = e_StatusCode_NotInitialized ;
	}

	return t_StatusCode ;
}

/******************************************************************************
 *
 *	Name:
 *
 *	
 *  Description:
 *
 *	
 *****************************************************************************/

template <class WmiKey,class WmiElement>
WmiStatusCode WmiTreePriorityQueue <WmiKey,WmiElement> :: DeQueue ()
{
	WmiStatusCode t_StatusCode = e_StatusCode_Success ;

	if ( m_Tree.Size () )
	{
		WmiBasicTree <WmiKey,WmiElement> :: Iterator t_Iterator ;
		t_Iterator = m_Tree.Begin () ;

		t_StatusCode = m_Tree.Delete ( t_Iterator.GetKey () ) ;
	}
	else
	{
		t_StatusCode = e_StatusCode_NotInitialized ;
	}

	return t_StatusCode ;
}

/******************************************************************************
 *
 *	Name:
 *
 *	
 *  Description:
 *
 *	
 *****************************************************************************/

template <class WmiKey,class WmiElement>
WmiStatusCode WmiTreePriorityQueue <WmiKey,WmiElement> :: Delete ( 

	const WmiKey &a_Key
)
{
	WmiStatusCode t_StatusCode = m_Tree.Delete ( a_Key ) ;
	return t_StatusCode ;
}

/******************************************************************************
 *
 *	Name:
 *
 *	
 *  Description:
 *
 *	
 *****************************************************************************/

template <class WmiKey,class WmiElement>
WmiStatusCode WmiTreePriorityQueue <WmiKey,WmiElement> :: Merge (

	WmiTreePriorityQueue <WmiKey,WmiElement> &a_Queue
)
{
	WmiStatusCode t_StatusCode = e_StatusCode_Success ;

	t_StatusCode = m_Tree.Merge ( a_Queue.m_Tree ) ;

	return t_StatusCode ;
}


#endif __TREEPRIORITYQUEUE_CPP