855 lines
20 KiB
C++
855 lines
20 KiB
C++
/*******************************************************************************
|
|
* SPDDKHLP.h *
|
|
*------------*
|
|
* Description:
|
|
* This is the header file for core helper functions implementation.
|
|
*
|
|
* Copyright (c) Microsoft Corporation. All rights reserved.
|
|
*
|
|
*******************************************************************************/
|
|
#ifndef SPDDKHLP_h
|
|
#define SPDDKHLP_h
|
|
|
|
#ifndef SPHelper_h
|
|
#include <sphelper.h>
|
|
#endif
|
|
|
|
#include <sapiddk.h>
|
|
|
|
#ifndef SPError_h
|
|
#include <SPError.h>
|
|
#endif
|
|
|
|
#ifndef SPDebug_h
|
|
#include <SPDebug.h>
|
|
#endif
|
|
|
|
#ifndef _INC_LIMITS
|
|
#include <limits.h>
|
|
#endif
|
|
|
|
#ifndef _INC_CRTDBG
|
|
#include <crtdbg.h>
|
|
#endif
|
|
|
|
#ifndef _INC_MALLOC
|
|
#include <malloc.h>
|
|
#endif
|
|
|
|
#ifndef _INC_MMSYSTEM
|
|
#include <mmsystem.h>
|
|
#endif
|
|
|
|
#ifndef __comcat_h__
|
|
#include <comcat.h>
|
|
#endif
|
|
|
|
//=== Constants ==============================================================
|
|
#define sp_countof(x) ((sizeof(x) / sizeof(*(x))))
|
|
|
|
#define SP_IS_BAD_WRITE_PTR(p) ( SPIsBadWritePtr( p, sizeof(*(p)) ))
|
|
#define SP_IS_BAD_READ_PTR(p) ( SPIsBadReadPtr( p, sizeof(*(p)) ))
|
|
#define SP_IS_BAD_CODE_PTR(p) ( ::IsBadCodePtr((FARPROC)(p) )
|
|
#define SP_IS_BAD_INTERFACE_PTR(p) ( SPIsBadInterfacePtr( (p) ) )
|
|
#define SP_IS_BAD_VARIANT_PTR(p) ( SPIsBadVARIANTPtr( (p) ) )
|
|
#define SP_IS_BAD_STRING_PTR(p) ( SPIsBadStringPtr( (p) ) )
|
|
|
|
#define SP_IS_BAD_OPTIONAL_WRITE_PTR(p) ((p) && SPIsBadWritePtr( p, sizeof(*(p)) ))
|
|
#define SP_IS_BAD_OPTIONAL_READ_PTR(p) ((p) && SPIsBadReadPtr( p, sizeof(*(p)) ))
|
|
#define SP_IS_BAD_OPTIONAL_INTERFACE_PTR(p) ((p) && SPIsBadInterfacePtr(p))
|
|
#define SP_IS_BAD_OPTIONAL_STRING_PTR(p) ((p) && SPIsBadStringPtr(p))
|
|
|
|
//=== Class, Enum, Struct, Template, and Union Declarations ==================
|
|
|
|
//=== Inlines ================================================================
|
|
|
|
/*** Pointer validation functions
|
|
*/
|
|
|
|
// TODO: Add decent debug output for bad parameters
|
|
|
|
inline BOOL SPIsBadStringPtr( const WCHAR * psz, ULONG cMaxChars = 0xFFFF )
|
|
{
|
|
BOOL IsBad = false;
|
|
__try
|
|
{
|
|
do
|
|
{
|
|
if( *psz++ == 0 ) return IsBad;
|
|
}
|
|
while( --cMaxChars );
|
|
}
|
|
__except( GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION )
|
|
{
|
|
IsBad = true;
|
|
}
|
|
|
|
return IsBad;
|
|
}
|
|
|
|
inline BOOL SPIsBadReadPtr( const void* pMem, UINT Size )
|
|
{
|
|
#ifdef _DEBUG
|
|
BOOL bIsBad = ::IsBadReadPtr( pMem, Size );
|
|
SPDBG_ASSERT(!bIsBad);
|
|
return bIsBad;
|
|
#else
|
|
return ::IsBadReadPtr( pMem, Size );
|
|
#endif
|
|
}
|
|
|
|
inline BOOL SPIsBadWritePtr( void* pMem, UINT Size )
|
|
{
|
|
#ifdef _DEBUG
|
|
BOOL bIsBad = ::IsBadWritePtr( pMem, Size );
|
|
SPDBG_ASSERT(!bIsBad);
|
|
return bIsBad;
|
|
#else
|
|
return ::IsBadWritePtr( pMem, Size );
|
|
#endif
|
|
}
|
|
|
|
inline BOOL SPIsBadInterfacePtr( const IUnknown* pUnknown )
|
|
{
|
|
#ifdef _DEBUG
|
|
BOOL bIsBad = ( ::IsBadReadPtr( pUnknown, sizeof( *pUnknown ) ) ||
|
|
::IsBadCodePtr( (FARPROC)((void**)pUnknown)[0] ))?
|
|
(true):(false);
|
|
SPDBG_ASSERT(!bIsBad);
|
|
return bIsBad;
|
|
#else
|
|
return ( ::IsBadReadPtr( pUnknown, sizeof( *pUnknown ) ) ||
|
|
::IsBadCodePtr( (FARPROC)((void**)pUnknown)[0] ))?
|
|
(true):(false);
|
|
#endif
|
|
}
|
|
|
|
inline BOOL SPIsBadVARIANTPtr( const VARIANT* pVar )
|
|
{
|
|
#ifdef _DEBUG
|
|
BOOL bIsBad = ::IsBadReadPtr( pVar, sizeof( *pVar ) );
|
|
SPDBG_ASSERT(!bIsBad);
|
|
return bIsBad;
|
|
#else
|
|
return ::IsBadReadPtr( pVar, sizeof( *pVar ) );
|
|
#endif
|
|
}
|
|
|
|
#ifdef __ATLCOM_H__ //--- Only enable these if ATL is being used
|
|
|
|
//
|
|
// Helper functions can be used to implement GetObjectToken/SetObjectToken for objects that
|
|
// support ISpObjectWithToken
|
|
//
|
|
inline HRESULT SpGenericSetObjectToken(ISpObjectToken * pCallersToken, CComPtr<ISpObjectToken> & cpObjToken)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
if (SP_IS_BAD_INTERFACE_PTR(pCallersToken))
|
|
{
|
|
hr = E_INVALIDARG;
|
|
}
|
|
else
|
|
{
|
|
if (cpObjToken)
|
|
{
|
|
hr = SPERR_ALREADY_INITIALIZED;
|
|
}
|
|
else
|
|
{
|
|
cpObjToken = pCallersToken;
|
|
}
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
|
|
inline HRESULT SpGenericGetObjectToken(ISpObjectToken ** ppCallersToken, CComPtr<ISpObjectToken> & cpObjToken)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
if (SP_IS_BAD_WRITE_PTR(ppCallersToken))
|
|
{
|
|
hr = E_POINTER;
|
|
}
|
|
else
|
|
{
|
|
*ppCallersToken = cpObjToken;
|
|
if (*ppCallersToken)
|
|
{
|
|
(*ppCallersToken)->AddRef();
|
|
}
|
|
else
|
|
{
|
|
hr = S_FALSE;
|
|
}
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
#endif // __ATLCOM_H__
|
|
|
|
|
|
//
|
|
// Helper class for SPSTATEINFO sturcture automatically initializes and cleans up
|
|
// the structure + provides a few helper functions.
|
|
//
|
|
class CSpStateInfo : public SPSTATEINFO
|
|
{
|
|
public:
|
|
CSpStateInfo()
|
|
{
|
|
cAllocatedEntries = NULL;
|
|
pTransitions = NULL;
|
|
}
|
|
~CSpStateInfo()
|
|
{
|
|
::CoTaskMemFree(pTransitions);
|
|
}
|
|
SPTRANSITIONENTRY * FirstEpsilon()
|
|
{
|
|
return pTransitions;
|
|
}
|
|
SPTRANSITIONENTRY * FirstRule()
|
|
{
|
|
return pTransitions + cEpsilons;
|
|
}
|
|
SPTRANSITIONENTRY * FirstWord()
|
|
{
|
|
return pTransitions + cEpsilons + cRules;
|
|
}
|
|
SPTRANSITIONENTRY * FirstSpecialTransition()
|
|
{
|
|
return pTransitions + cEpsilons + cRules + cWords;
|
|
}
|
|
};
|
|
|
|
|
|
//
|
|
// This basic queue implementation can be used to maintin linked lists of classes. The class T
|
|
// must contain the member m_pNext which is used by this template to point to the next element.
|
|
// If the bPurgeWhenDeleted is TRUE then all of the elements in the queue will be deleted
|
|
// when the queue is deleted, otherwise they will not.
|
|
// If bMaintainCount is TRUE then a running count will be maintained, and GetCount() will be
|
|
// efficent. If it is FALSE then a running count will not be maintained, and GetCount() will
|
|
// be an order N operation. If you do not require a count, then
|
|
//
|
|
|
|
template <class T, BOOL bPurgeWhenDeleted> class CSpBasicList;
|
|
|
|
template <class T, BOOL bPurgeWhenDeleted = TRUE, BOOL bMaintainCount = FALSE>
|
|
class CSpBasicQueue
|
|
{
|
|
public:
|
|
T * m_pHead;
|
|
T * m_pTail;
|
|
ULONG m_cElements; // Warning! Use GetCount() -- Not maintained if bMaintainCount is FALSE.
|
|
|
|
CSpBasicQueue()
|
|
{
|
|
m_pHead = NULL;
|
|
if (bMaintainCount)
|
|
{
|
|
m_cElements = 0;
|
|
}
|
|
}
|
|
|
|
~CSpBasicQueue()
|
|
{
|
|
if (bPurgeWhenDeleted)
|
|
{
|
|
Purge();
|
|
}
|
|
}
|
|
|
|
HRESULT CreateNode(T ** ppNode)
|
|
{
|
|
*ppNode = new T;
|
|
if (*ppNode)
|
|
{
|
|
return S_OK;
|
|
}
|
|
else
|
|
{
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
}
|
|
|
|
T * GetNext(const T * pNode)
|
|
{
|
|
return pNode->m_pNext;
|
|
}
|
|
|
|
|
|
T * Item(ULONG i)
|
|
{
|
|
T * pNode = m_pHead;
|
|
while (pNode && i)
|
|
{
|
|
i--;
|
|
pNode = pNode->m_pNext;
|
|
}
|
|
return pNode;
|
|
}
|
|
|
|
void InsertAfter(T * pPrev, T * pNewNode)
|
|
{
|
|
if (pPrev)
|
|
{
|
|
pNewNode->m_pNext = pPrev->m_pNext;
|
|
pPrev->m_pNext = pNewNode;
|
|
if (pNewNode->m_pNext == NULL)
|
|
{
|
|
m_pTail = pNewNode;
|
|
}
|
|
if (bMaintainCount) ++m_cElements;
|
|
}
|
|
else
|
|
{
|
|
InsertHead(pNewNode);
|
|
}
|
|
}
|
|
|
|
void InsertTail(T * pNode)
|
|
{
|
|
pNode->m_pNext = NULL;
|
|
if (m_pHead)
|
|
{
|
|
m_pTail->m_pNext = pNode;
|
|
}
|
|
else
|
|
{
|
|
m_pHead = pNode;
|
|
}
|
|
m_pTail = pNode;
|
|
if (bMaintainCount) ++m_cElements;
|
|
}
|
|
|
|
void InsertHead(T * pNode)
|
|
{
|
|
pNode->m_pNext = m_pHead;
|
|
if (m_pHead == NULL)
|
|
{
|
|
m_pTail = pNode;
|
|
}
|
|
m_pHead = pNode;
|
|
if (bMaintainCount) ++m_cElements;
|
|
}
|
|
|
|
T * RemoveHead()
|
|
{
|
|
T * pNode = m_pHead;
|
|
if (pNode)
|
|
{
|
|
m_pHead = pNode->m_pNext;
|
|
if (bMaintainCount) --m_cElements;
|
|
}
|
|
return pNode;
|
|
}
|
|
|
|
T * RemoveTail()
|
|
{
|
|
T * pNode = m_pHead;
|
|
if (pNode)
|
|
{
|
|
if (pNode == m_pTail)
|
|
{
|
|
m_pHead = NULL;
|
|
}
|
|
else
|
|
{
|
|
T * pPrev;
|
|
do
|
|
{
|
|
pPrev = pNode;
|
|
pNode = pNode->m_pNext;
|
|
} while ( pNode != m_pTail );
|
|
pPrev->m_pNext = NULL;
|
|
m_pTail = pPrev;
|
|
}
|
|
if (bMaintainCount) --m_cElements;
|
|
}
|
|
return pNode;
|
|
}
|
|
|
|
void Purge()
|
|
{
|
|
while (m_pHead)
|
|
{
|
|
T * pDie = m_pHead;
|
|
m_pHead = pDie->m_pNext;
|
|
delete pDie;
|
|
}
|
|
if (bMaintainCount) m_cElements = 0;
|
|
}
|
|
|
|
void ExplicitPurge()
|
|
{
|
|
T * pDie;
|
|
BYTE * pb;
|
|
|
|
while (m_pHead)
|
|
{
|
|
pDie = m_pHead;
|
|
m_pHead = pDie->m_pNext;
|
|
|
|
pDie->~T();
|
|
|
|
pb = reinterpret_cast<BYTE *>(pDie);
|
|
delete [] pb;
|
|
}
|
|
if (bMaintainCount) m_cElements = 0;
|
|
}
|
|
|
|
|
|
T * GetTail() const
|
|
{
|
|
if (m_pHead)
|
|
{
|
|
return m_pTail;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
T * GetHead() const
|
|
{
|
|
return m_pHead;
|
|
}
|
|
|
|
BOOL IsEmpty() const
|
|
{
|
|
return m_pHead == NULL;
|
|
}
|
|
|
|
BOOL Remove(T * pNode)
|
|
{
|
|
if (m_pHead == pNode)
|
|
{
|
|
m_pHead = pNode->m_pNext;
|
|
if (bMaintainCount) --m_cElements;
|
|
return TRUE;
|
|
}
|
|
else
|
|
{
|
|
T * pCur = m_pHead;
|
|
while (pCur)
|
|
{
|
|
T * pNext = pCur->m_pNext;
|
|
if (pNext == pNode)
|
|
{
|
|
if ((pCur->m_pNext = pNode->m_pNext) == NULL)
|
|
{
|
|
m_pTail = pCur;
|
|
}
|
|
if (bMaintainCount) --m_cElements;
|
|
return TRUE;
|
|
}
|
|
pCur = pNext;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
void MoveAllToHeadOf(CSpBasicQueue & DestQueue)
|
|
{
|
|
if (m_pHead)
|
|
{
|
|
m_pTail->m_pNext = DestQueue.m_pHead;
|
|
if (DestQueue.m_pHead == NULL)
|
|
{
|
|
DestQueue.m_pTail = m_pTail;
|
|
}
|
|
DestQueue.m_pHead = m_pHead;
|
|
m_pHead = NULL;
|
|
if (bMaintainCount)
|
|
{
|
|
DestQueue.m_cElements += m_cElements;
|
|
m_cElements = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
void MoveAllToList(CSpBasicList<T, bPurgeWhenDeleted> & List)
|
|
{
|
|
if (m_pHead)
|
|
{
|
|
m_pTail->m_pNext = List.m_pFirst;
|
|
List.m_pFirst = m_pHead;
|
|
m_pHead = NULL;
|
|
}
|
|
if (bMaintainCount)
|
|
{
|
|
m_cElements = 0;
|
|
}
|
|
}
|
|
|
|
BOOL MoveToList(T * pNode, CSpBasicList<T, bPurgeWhenDeleted> & List)
|
|
{
|
|
BOOL bFound = Remove(pNode);
|
|
if (bFound)
|
|
{
|
|
List.AddNode(pNode);
|
|
}
|
|
return bFound;
|
|
}
|
|
|
|
ULONG GetCount() const
|
|
{
|
|
if (bMaintainCount)
|
|
{
|
|
return m_cElements;
|
|
}
|
|
else
|
|
{
|
|
ULONG c = 0;
|
|
for (T * pNode = m_pHead;
|
|
pNode;
|
|
pNode = pNode->m_pNext, c++) {}
|
|
return c;
|
|
}
|
|
}
|
|
|
|
//
|
|
// The following functions require the class T to implement a static function:
|
|
//
|
|
// LONG Compare(const T * pElem1, const T * pElem2)
|
|
//
|
|
// which returns < 0 if pElem1 is less than pElem2, 0 if they are equal, and > 0 if
|
|
// pElem1 is greater than pElem2.
|
|
//
|
|
void InsertSorted(T * pNode)
|
|
{
|
|
if (m_pHead)
|
|
{
|
|
if (T::Compare(pNode, m_pTail) >= 0)
|
|
{
|
|
pNode->m_pNext = NULL;
|
|
m_pTail->m_pNext = pNode;
|
|
m_pTail = pNode;
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// We don't have to worry about walking off of the end of the list here since
|
|
// we have already checked the tail.
|
|
//
|
|
T ** ppNext = &m_pHead;
|
|
while (T::Compare(pNode, *ppNext) >= 0)
|
|
{
|
|
ppNext = &((*ppNext)->m_pNext);
|
|
}
|
|
pNode->m_pNext = *ppNext;
|
|
*ppNext = pNode;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
pNode->m_pNext = NULL;
|
|
m_pHead = m_pTail = pNode;
|
|
}
|
|
if (bMaintainCount) ++m_cElements;
|
|
}
|
|
|
|
HRESULT InsertSortedUnique(T * pNode)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
if (m_pHead)
|
|
{
|
|
if (T::Compare(pNode, m_pTail) > 0)
|
|
{
|
|
pNode->m_pNext = NULL;
|
|
m_pTail->m_pNext = pNode;
|
|
m_pTail = pNode;
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// We don't have to worry about walking off of the end of the list here since
|
|
// we have already checked the tail.
|
|
//
|
|
T ** ppNext = &m_pHead;
|
|
while (T::Compare(pNode, *ppNext) > 0)
|
|
{
|
|
ppNext = &((*ppNext)->m_pNext);
|
|
}
|
|
if (T::Compare(pNode, *ppNext) != 0)
|
|
{
|
|
pNode->m_pNext = *ppNext;
|
|
*ppNext = pNode;
|
|
}
|
|
else
|
|
{
|
|
delete pNode;
|
|
hr = S_FALSE;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
pNode->m_pNext = NULL;
|
|
m_pHead = m_pTail = pNode;
|
|
}
|
|
if (bMaintainCount) ++m_cElements;
|
|
return hr;
|
|
}
|
|
|
|
//
|
|
// These functions must support the "==" operator for the TFIND type.
|
|
//
|
|
template <class TFIND>
|
|
T * Find(TFIND & FindVal) const
|
|
{
|
|
for (T * pNode = m_pHead; pNode && (!(*pNode == FindVal)); pNode = pNode->m_pNext)
|
|
{}
|
|
return pNode;
|
|
}
|
|
|
|
template <class TFIND>
|
|
T * FindNext(const T * pCurNode, TFIND & FindVal) const
|
|
{
|
|
for (T * pNode = pCurNode->m_pNext; pNode && (!(*pNode == FindVal)); pNode = pNode->m_pNext)
|
|
{}
|
|
return pNode;
|
|
}
|
|
|
|
//
|
|
// Searches for and removes a single list element
|
|
//
|
|
template <class TFIND>
|
|
T * FindAndRemove(TFIND & FindVal)
|
|
{
|
|
T * pNode = m_pHead;
|
|
if (pNode)
|
|
{
|
|
if (*pNode == FindVal)
|
|
{
|
|
m_pHead = pNode->m_pNext;
|
|
if (bMaintainCount) --m_cElements;
|
|
}
|
|
else
|
|
{
|
|
T * pPrev = pNode;
|
|
for (pNode = pNode->m_pNext;
|
|
pNode;
|
|
pPrev = pNode, pNode = pNode->m_pNext)
|
|
{
|
|
if (*pNode == FindVal)
|
|
{
|
|
pPrev->m_pNext = pNode->m_pNext;
|
|
if (pNode->m_pNext == NULL)
|
|
{
|
|
m_pTail = pPrev;
|
|
}
|
|
if (bMaintainCount) --m_cElements;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return pNode;
|
|
}
|
|
|
|
//
|
|
// Searches for and deletes all list elements that match
|
|
//
|
|
template <class TFIND>
|
|
void FindAndDeleteAll(TFIND & FindVal)
|
|
{
|
|
T * pNode = m_pHead;
|
|
while (pNode && *pNode == FindVal)
|
|
{
|
|
m_pHead = pNode->m_pNext;
|
|
delete pNode;
|
|
if (bMaintainCount) --m_cElements;
|
|
pNode = m_pHead;
|
|
}
|
|
T * pPrev = pNode;
|
|
while (pNode)
|
|
{
|
|
T * pNext = pNode->m_pNext;
|
|
if (*pNode == FindVal)
|
|
{
|
|
pPrev->m_pNext = pNext;
|
|
delete pNode;
|
|
if (bMaintainCount) --m_cElements;
|
|
}
|
|
else
|
|
{
|
|
pPrev = pNode;
|
|
}
|
|
pNode = pNext;
|
|
}
|
|
m_pTail = pPrev; // Just always set it in case we removed the tail.
|
|
}
|
|
|
|
|
|
};
|
|
|
|
template <class T, BOOL bPurgeWhenDeleted = TRUE>
|
|
class CSpBasicList
|
|
{
|
|
public:
|
|
T * m_pFirst;
|
|
CSpBasicList() : m_pFirst(NULL) {}
|
|
~CSpBasicList()
|
|
{
|
|
if (bPurgeWhenDeleted)
|
|
{
|
|
Purge();
|
|
}
|
|
}
|
|
|
|
void Purge()
|
|
{
|
|
while (m_pFirst)
|
|
{
|
|
T * pNext = m_pFirst->m_pNext;
|
|
delete m_pFirst;
|
|
m_pFirst = pNext;
|
|
}
|
|
}
|
|
|
|
void ExplicitPurge()
|
|
{
|
|
T * pDie;
|
|
BYTE * pb;
|
|
|
|
while (m_pFirst)
|
|
{
|
|
pDie = m_pFirst;
|
|
m_pFirst = pDie->m_pNext;
|
|
|
|
pDie->~T();
|
|
|
|
pb = reinterpret_cast<BYTE *>(pDie);
|
|
delete [] pb;
|
|
}
|
|
}
|
|
|
|
HRESULT RemoveFirstOrAllocateNew(T ** ppNode)
|
|
{
|
|
if (m_pFirst)
|
|
{
|
|
*ppNode = m_pFirst;
|
|
m_pFirst = m_pFirst->m_pNext;
|
|
}
|
|
else
|
|
{
|
|
*ppNode = new T;
|
|
if (*ppNode == NULL)
|
|
{
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
}
|
|
return S_OK;
|
|
}
|
|
|
|
void AddNode(T * pNode)
|
|
{
|
|
pNode->m_pNext = m_pFirst;
|
|
m_pFirst = pNode;
|
|
}
|
|
T * GetFirst()
|
|
{
|
|
return m_pFirst;
|
|
}
|
|
T * RemoveFirst()
|
|
{
|
|
T * pNode = m_pFirst;
|
|
if (pNode)
|
|
{
|
|
m_pFirst = pNode->m_pNext;
|
|
}
|
|
return pNode;
|
|
}
|
|
};
|
|
|
|
#define STACK_ALLOC(TYPE, COUNT) (TYPE *)_alloca(sizeof(TYPE) * (COUNT))
|
|
#define STACK_ALLOC_AND_ZERO(TYPE, COUNT) (TYPE *)memset(_alloca(sizeof(TYPE) * (COUNT)), 0, (sizeof(TYPE) * (COUNT)))
|
|
#define STACK_ALLOC_AND_COPY(TYPE, COUNT, SOURCE) (TYPE *)memcpy(_alloca(sizeof(TYPE) * (COUNT)), (SOURCE), (sizeof(TYPE) * (COUNT)))
|
|
|
|
inline HRESULT SpGetSubTokenFromToken(
|
|
ISpObjectToken * pToken,
|
|
const WCHAR * pszSubKeyName,
|
|
ISpObjectToken ** ppToken,
|
|
BOOL fCreateIfNotExist = FALSE)
|
|
{
|
|
SPDBG_FUNC("SpGetTokenFromDataKey");
|
|
HRESULT hr = S_OK;
|
|
|
|
if (SP_IS_BAD_INTERFACE_PTR(pToken) ||
|
|
SP_IS_BAD_STRING_PTR(pszSubKeyName) ||
|
|
SP_IS_BAD_WRITE_PTR(ppToken))
|
|
{
|
|
hr = E_POINTER;
|
|
}
|
|
|
|
// First, either create or open the datakey for the new token
|
|
CComPtr<ISpDataKey> cpDataKeyForNewToken;
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
if (fCreateIfNotExist)
|
|
{
|
|
hr = pToken->CreateKey(pszSubKeyName, &cpDataKeyForNewToken);
|
|
}
|
|
else
|
|
{
|
|
hr = pToken->OpenKey(pszSubKeyName, &cpDataKeyForNewToken);
|
|
}
|
|
}
|
|
|
|
// The sub token's category will be the token id of it's parent token
|
|
CSpDynamicString dstrCategoryId;
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
hr = pToken->GetId(&dstrCategoryId);
|
|
}
|
|
|
|
// The sub token's token id will be it's category id + "\\" the key name
|
|
CSpDynamicString dstrTokenId;
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
dstrTokenId = dstrCategoryId;
|
|
dstrTokenId.Append2(L"\\", pszSubKeyName);
|
|
}
|
|
|
|
// Now create the token and initalize it
|
|
CComPtr<ISpObjectTokenInit> cpTokenInit;
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
hr = cpTokenInit.CoCreateInstance(CLSID_SpObjectToken);
|
|
}
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
hr = cpTokenInit->InitFromDataKey(dstrCategoryId, dstrTokenId, cpDataKeyForNewToken);
|
|
}
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
*ppToken = cpTokenInit.Detach();
|
|
}
|
|
|
|
SPDBG_REPORT_ON_FAIL(hr);
|
|
return hr;
|
|
}
|
|
|
|
template<class T>
|
|
HRESULT SpCreateObjectFromSubToken(ISpObjectToken * pToken, const WCHAR * pszSubKeyName, T ** ppObject,
|
|
IUnknown * pUnkOuter = NULL, DWORD dwClsCtxt = CLSCTX_ALL)
|
|
{
|
|
SPDBG_FUNC("SpCreateObjectFromSubToken");
|
|
HRESULT hr;
|
|
|
|
CComPtr<ISpObjectToken> cpSubToken;
|
|
hr = SpGetSubTokenFromToken(pToken, pszSubKeyName, &cpSubToken);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
hr = SpCreateObjectFromToken(cpSubToken, ppObject, pUnkOuter, dwClsCtxt);
|
|
}
|
|
|
|
SPDBG_REPORT_ON_FAIL(hr);
|
|
return hr;
|
|
}
|
|
|
|
#endif /* This must be the last line in the file */
|