windows-nt/Source/XPSP1/NT/admin/wmi/wbem/winmgmt/esscli/wbemdnf.h

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2020-09-26 03:20:57 -05:00
/*++
Copyright (C) 1999-2000 Microsoft Corporation
Module Name:
WBEMDNF.H
Abstract:
WBEM Evaluation Tree
History:
--*/
#ifndef __WBEM_DNF__H_
#define __WBEM_DNF__H_
#include "esscpol.h"
#include <parmdefs.h>
#include <ql.h>
#include <wbemcomn.h>
#include <sync.h>
#include <newnew.h>
class CTokenFilter
{
public:
CTokenFilter(){}
virtual ~CTokenFilter(){}
virtual BOOL IsRelevant(QL_LEVEL_1_TOKEN* pToken) = 0;
};
class CConjunction
{
protected:
CUniquePointerArray<QL_LEVEL_1_TOKEN> m_apTokens;
static CReuseMemoryManager mstatic_Manager;
public:
CConjunction();
CConjunction(QL_LEVEL_1_TOKEN& Token, BOOL bNegate);
CConjunction(CConjunction& Other);
CConjunction(CConjunction& Other1, CConjunction& Other2);
long GetNumTokens() {return m_apTokens.GetSize();}
INTERNAL QL_LEVEL_1_TOKEN* GetTokenAt(int nIndex)
{return m_apTokens[nIndex];}
BOOL AddToken(ACQUIRE QL_LEVEL_1_TOKEN* pNew)
{ return m_apTokens.Add(pNew); }
void Sort();
HRESULT GetNecessaryProjection( CTokenFilter* pFilter,
CConjunction** ppResult);
static int NegateOperator(int nOperator);
void *operator new(size_t nBlock);
void operator delete(void* p);
};
class CDNFExpression
{
protected:
CUniquePointerArray<CConjunction> m_apTerms;
protected:
BOOL CreateFromToken(QL_LEVEL_1_TOKEN& Token, BOOL bNegate);
HRESULT CreateOr(CDNFExpression& Arg1, CDNFExpression& Arg2,
long& lMaxTokens);
HRESULT CreateAnd(CDNFExpression& Arg1, CDNFExpression& Arg2,
long& lMaxTokens);
public:
long GetNumTerms() {return m_apTerms.GetSize();}
INTERNAL CConjunction* GetTermAt(int nIndex)
{return m_apTerms[nIndex];}
void AddTerm(ACQUIRE CConjunction* pNew)
{m_apTerms.Add(pNew);}
HRESULT CreateFromTokens(QL_LEVEL_1_TOKEN*& pLastToken, BOOL bNegate,
long& lMaxTokens);
void Sort();
public:
HRESULT GetNecessaryProjection(CTokenFilter* pFilter,
CDNFExpression** ppResult);
};
#endif