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///////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Microsoft WMIOLE DB Provider
// (C) Copyright 1999 Microsoft Corporation. All Rights Reserved.
//
// dataconvert.h
//
////////////////////////////////////////////////////////////////////////////
typedef LONG_PTR HSLOT;#define MAX_CIM_STRING_SIZE -1
#ifndef __DATA_CONVERT_H__
#define __DATA_CONVERT_H__
class CDataMap{
HRESULT AllocateData(DBTYPE dwType,void *& pData,DBLENGTH &dwLength); BOOL IsValidDBTimeStamp(DBTIMESTAMP *pTimeStamp); BOOL IsSafeArrayEmpty(SAFEARRAY *psa); BOOL IsDateType(DWORD dwType); HRESULT ConvertDateTypes(DWORD dwSrcType, DWORD dwDstType, DBLENGTH dwSrcLen, DBLENGTH* pdwDstLen, void * pSrc, void * & pDst, DBLENGTH dbDstLen, DWORD * pdwStatus);
public: CDataMap() {}; ~CDataMap() {};
HRESULT MapOLEDBTypeToCIMType(WORD dwDataType, long & dwCIMType ); HRESULT MapCIMTypeToOLEDBType(long lType, WORD & dwdbOLEDBType, DBLENGTH & uColumnSize , DWORD &dwFlags); HRESULT FreeData(DBTYPE lType, BYTE *& pData); HRESULT AllocateAndMapCIMTypeToOLEDBType(CVARIANT & vValue,BYTE *& pData,DBTYPE &dwColType,DBLENGTH & dwSize, DWORD &dwFlags); HRESULT MapAndConvertOLEDBTypeToCIMType(DBTYPE wDataType, void *pData ,DBLENGTH dwSrcLength,VARIANT &varData,LONG_PTR dwArrayCIMType = -1); HRESULT ConvertVariantType(VARIANT &varSrc, VARIANT varDst ,CIMTYPE lType); BOOL CompareData(DWORD dwType,void * pData1 , void *pData2);
// Array conversion functions
HRESULT ConvertAndCopyArray(SAFEARRAY *psaSrc, SAFEARRAY **psaDst, DBTYPE dwSrcType,DBTYPE dwDstType,DBSTATUS *pdwStatus); HRESULT ConvertToVariantArray(SAFEARRAY *pArray,DBTYPE dwSrcType,SAFEARRAY ** ppArrayOut);
// Date conversion functions
HRESULT ConvertOledbDateToCIMType(VARIANT *vTimeStamp,BSTR &strDate); HRESULT ConvertDateToOledbType(BSTR strDate,DBTIMESTAMP *pTimeStamp); HRESULT ConvertVariantDateOledbDate(DATE *pDate,DBTIMESTAMP *pTimeStamp); HRESULT ConvertOledbDateToCIMType(DBTIMESTAMP *pTimeStamp,BSTR &strDate); HRESULT ConvertVariantDateToCIMType(DATE *pDate,BSTR &strDate); HRESULT ClearData(DBTYPE lType, void * pData); HRESULT ConvertToCIMType(BYTE *pData, DBTYPE lType ,DBLENGTH lDataLength,LONG lCIMType ,VARIANT &varData); HRESULT AllocateAndConvertToOLEDBType(VARIANT &varData,LONG lCimType , DBTYPE lOledbType,BYTE *&pData, DBLENGTH &lDataLength, DBSTATUS &dwStatus); HRESULT TranslateParameterStringToOLEDBType( DBTYPE & wDataType, WCHAR * str) ;};#endif
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