1315 lines
38 KiB
C++
1315 lines
38 KiB
C++
/*****************************************************************************
|
|
* DXTmpl.h *
|
|
*-----------*
|
|
* This is the header file contains the DX collection class templates. It
|
|
* has been derived from the MFC collection templates for compatibility.
|
|
*-----------------------------------------------------------------------------
|
|
* Created by: Ed Connell Date: 05/17/95
|
|
*
|
|
*****************************************************************************/
|
|
#ifndef DXTmpl_h
|
|
#define DXTmpl_h
|
|
|
|
#ifndef _INC_LIMITS
|
|
#include <limits.h>
|
|
#endif
|
|
|
|
#ifndef _INC_STRING
|
|
#include <string.h>
|
|
#endif
|
|
|
|
#ifndef _INC_STDLIB
|
|
#include <stdlib.h>
|
|
#endif
|
|
|
|
#ifndef _INC_SEARCH
|
|
#include <search.h>
|
|
#endif
|
|
|
|
#define DXASSERT_VALID( pObj )
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
typedef void* DXLISTPOS;
|
|
typedef DWORD DXLISTHANDLE;
|
|
|
|
#define DX_BEFORE_START_POSITION ((void*)-1L)
|
|
|
|
inline BOOL DXIsValidAddress(const void* lp, UINT nBytes, BOOL bReadWrite)
|
|
{
|
|
// simple version using Win-32 APIs for pointer validation.
|
|
return (lp != NULL && !IsBadReadPtr(lp, nBytes) &&
|
|
(!bReadWrite || !IsBadWritePtr((LPVOID)lp, nBytes)));
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// global helpers (can be overridden)
|
|
template<class TYPE>
|
|
inline void DXConstructElements(TYPE* pElements, int nCount)
|
|
{
|
|
_ASSERT( nCount == 0 ||
|
|
DXIsValidAddress( pElements, nCount * sizeof(TYPE), TRUE ) );
|
|
|
|
// default is bit-wise zero initialization
|
|
memset((void*)pElements, 0, nCount * sizeof(TYPE));
|
|
}
|
|
|
|
template<class TYPE>
|
|
inline void DXDestructElements(TYPE* pElements, int nCount)
|
|
{
|
|
_ASSERT( ( nCount == 0 ||
|
|
DXIsValidAddress( pElements, nCount * sizeof(TYPE), TRUE ) ) );
|
|
pElements; // not used
|
|
nCount; // not used
|
|
|
|
// default does nothing
|
|
}
|
|
|
|
template<class TYPE>
|
|
inline void DXCopyElements(TYPE* pDest, const TYPE* pSrc, int nCount)
|
|
{
|
|
_ASSERT( ( nCount == 0 ||
|
|
DXIsValidAddress( pDest, nCount * sizeof(TYPE), TRUE )) );
|
|
_ASSERT( ( nCount == 0 ||
|
|
DXIsValidAddress( pSrc, nCount * sizeof(TYPE), FALSE )) );
|
|
|
|
// default is bit-wise copy
|
|
memcpy(pDest, pSrc, nCount * sizeof(TYPE));
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
BOOL DXCompareElements(const TYPE* pElement1, const ARG_TYPE* pElement2)
|
|
{
|
|
_ASSERT( DXIsValidAddress( pElement1, sizeof(TYPE), FALSE ) );
|
|
_ASSERT( DXIsValidAddress( pElement2, sizeof(ARG_TYPE), FALSE ) );
|
|
return *pElement1 == *pElement2;
|
|
}
|
|
|
|
template<class ARG_KEY>
|
|
inline UINT DXHashKey(ARG_KEY key)
|
|
{
|
|
// default identity hash - works for most primitive values
|
|
return ((UINT)(void*)(DWORD)key) >> 4;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CDXPlex
|
|
|
|
struct CDXPlex // warning variable length structure
|
|
{
|
|
CDXPlex* pNext;
|
|
UINT nMax;
|
|
UINT nCur;
|
|
/* BYTE data[maxNum*elementSize]; */
|
|
void* data() { return this+1; }
|
|
|
|
static CDXPlex* PASCAL Create( CDXPlex*& pHead, UINT nMax, UINT cbElement )
|
|
{
|
|
CDXPlex* p = (CDXPlex*) new BYTE[sizeof(CDXPlex) + nMax * cbElement];
|
|
p->nMax = nMax;
|
|
p->nCur = 0;
|
|
p->pNext = pHead;
|
|
pHead = p; // change head (adds in reverse order for simplicity)
|
|
return p;
|
|
}
|
|
|
|
void FreeDataChain()
|
|
{
|
|
CDXPlex* p = this;
|
|
while (p != NULL)
|
|
{
|
|
BYTE* bytes = (BYTE*) p;
|
|
CDXPlex* pNext = p->pNext;
|
|
delete bytes;
|
|
p = pNext;
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CDXArray<TYPE, ARG_TYPE>
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
class CDXArray
|
|
{
|
|
public:
|
|
// Construction
|
|
CDXArray();
|
|
|
|
// Attributes
|
|
int GetSize() const;
|
|
int GetUpperBound() const;
|
|
void SetSize(int nNewSize, int nGrowBy = -1);
|
|
|
|
// Operations
|
|
// Clean up
|
|
void FreeExtra();
|
|
void RemoveAll();
|
|
|
|
// Accessing elements
|
|
TYPE GetAt(int nIndex) const;
|
|
void SetAt(int nIndex, ARG_TYPE newElement);
|
|
TYPE& ElementAt(int nIndex);
|
|
|
|
// Direct Access to the element data (may return NULL)
|
|
const TYPE* GetData() const;
|
|
TYPE* GetData();
|
|
|
|
// Potentially growing the array
|
|
void SetAtGrow(int nIndex, ARG_TYPE newElement);
|
|
int Add(ARG_TYPE newElement);
|
|
int Append(const CDXArray& src);
|
|
void Copy(const CDXArray& src);
|
|
|
|
// overloaded operator helpers
|
|
TYPE operator[](int nIndex) const;
|
|
TYPE& operator[](int nIndex);
|
|
|
|
// Operations that move elements around
|
|
void InsertAt(int nIndex, ARG_TYPE newElement, int nCount = 1);
|
|
void RemoveAt(int nIndex, int nCount = 1);
|
|
void InsertAt(int nStartIndex, CDXArray* pNewArray);
|
|
void Sort(int (__cdecl *compare )(const void *elem1, const void *elem2 ));
|
|
|
|
// Implementation
|
|
protected:
|
|
TYPE* m_pData; // the actual array of data
|
|
int m_nSize; // # of elements (upperBound - 1)
|
|
int m_nMaxSize; // max allocated
|
|
int m_nGrowBy; // grow amount
|
|
|
|
public:
|
|
~CDXArray();
|
|
#ifdef _DEBUG
|
|
// void Dump(CDumpContext&) const;
|
|
void AssertValid() const;
|
|
#endif
|
|
};
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CDXArray<TYPE, ARG_TYPE> inline functions
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline int CDXArray<TYPE, ARG_TYPE>::GetSize() const
|
|
{ return m_nSize; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline int CDXArray<TYPE, ARG_TYPE>::GetUpperBound() const
|
|
{ return m_nSize-1; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline void CDXArray<TYPE, ARG_TYPE>::RemoveAll()
|
|
{ SetSize(0, -1); }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE CDXArray<TYPE, ARG_TYPE>::GetAt(int nIndex) const
|
|
{ _ASSERT( (nIndex >= 0 && nIndex < m_nSize) );
|
|
return m_pData[nIndex]; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline void CDXArray<TYPE, ARG_TYPE>::SetAt(int nIndex, ARG_TYPE newElement)
|
|
{ _ASSERT( (nIndex >= 0 && nIndex < m_nSize) );
|
|
m_pData[nIndex] = newElement; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE& CDXArray<TYPE, ARG_TYPE>::ElementAt(int nIndex)
|
|
{ _ASSERT( (nIndex >= 0 && nIndex < m_nSize) );
|
|
return m_pData[nIndex]; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline const TYPE* CDXArray<TYPE, ARG_TYPE>::GetData() const
|
|
{ return (const TYPE*)m_pData; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE* CDXArray<TYPE, ARG_TYPE>::GetData()
|
|
{ return (TYPE*)m_pData; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline int CDXArray<TYPE, ARG_TYPE>::Add(ARG_TYPE newElement)
|
|
{ int nIndex = m_nSize;
|
|
SetAtGrow(nIndex, newElement);
|
|
return nIndex; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE CDXArray<TYPE, ARG_TYPE>::operator[](int nIndex) const
|
|
{ return GetAt(nIndex); }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE& CDXArray<TYPE, ARG_TYPE>::operator[](int nIndex)
|
|
{ return ElementAt(nIndex); }
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CDXArray<TYPE, ARG_TYPE> out-of-line functions
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
CDXArray<TYPE, ARG_TYPE>::CDXArray()
|
|
{
|
|
m_pData = NULL;
|
|
m_nSize = m_nMaxSize = m_nGrowBy = 0;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
CDXArray<TYPE, ARG_TYPE>::~CDXArray()
|
|
{
|
|
DXASSERT_VALID( this );
|
|
|
|
if (m_pData != NULL)
|
|
{
|
|
DXDestructElements(m_pData, m_nSize);
|
|
delete[] (BYTE*)m_pData;
|
|
}
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXArray<TYPE, ARG_TYPE>::SetSize(int nNewSize, int nGrowBy)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
_ASSERT( nNewSize >= 0 );
|
|
|
|
if (nGrowBy != -1)
|
|
m_nGrowBy = nGrowBy; // set new size
|
|
|
|
if (nNewSize == 0)
|
|
{
|
|
// shrink to nothing
|
|
if (m_pData != NULL)
|
|
{
|
|
DXDestructElements(m_pData, m_nSize);
|
|
delete[] (BYTE*)m_pData;
|
|
m_pData = NULL;
|
|
}
|
|
m_nSize = m_nMaxSize = 0;
|
|
}
|
|
else if (m_pData == NULL)
|
|
{
|
|
// create one with exact size
|
|
#ifdef SIZE_T_MAX
|
|
_ASSERT( nNewSize <= SIZE_T_MAX/sizeof(TYPE) ); // no overflow
|
|
#endif
|
|
m_pData = (TYPE*) new BYTE[nNewSize * sizeof(TYPE)];
|
|
DXConstructElements(m_pData, nNewSize);
|
|
m_nSize = m_nMaxSize = nNewSize;
|
|
}
|
|
else if (nNewSize <= m_nMaxSize)
|
|
{
|
|
// it fits
|
|
if (nNewSize > m_nSize)
|
|
{
|
|
// initialize the new elements
|
|
DXConstructElements(&m_pData[m_nSize], nNewSize-m_nSize);
|
|
}
|
|
else if (m_nSize > nNewSize)
|
|
{
|
|
// destroy the old elements
|
|
DXDestructElements(&m_pData[nNewSize], m_nSize-nNewSize);
|
|
}
|
|
m_nSize = nNewSize;
|
|
}
|
|
else
|
|
{
|
|
// otherwise, grow array
|
|
int nGrowBy = m_nGrowBy;
|
|
if (nGrowBy == 0)
|
|
{
|
|
// heuristically determe growth when nGrowBy == 0
|
|
// (this avoids heap fragmentation in many situations)
|
|
nGrowBy = min(1024, max(4, m_nSize / 8));
|
|
}
|
|
int nNewMax;
|
|
if (nNewSize < m_nMaxSize + nGrowBy)
|
|
nNewMax = m_nMaxSize + nGrowBy; // granularity
|
|
else
|
|
nNewMax = nNewSize; // no slush
|
|
|
|
_ASSERT( nNewMax >= m_nMaxSize ); // no wrap around
|
|
#ifdef SIZE_T_MAX
|
|
_ASSERT( nNewMax <= SIZE_T_MAX/sizeof(TYPE) ); // no overflow
|
|
#endif
|
|
TYPE* pNewData = (TYPE*) new BYTE[nNewMax * sizeof(TYPE)];
|
|
|
|
// copy new data from old
|
|
memcpy(pNewData, m_pData, m_nSize * sizeof(TYPE));
|
|
|
|
// construct remaining elements
|
|
_ASSERT( nNewSize > m_nSize );
|
|
DXConstructElements(&pNewData[m_nSize], nNewSize-m_nSize);
|
|
|
|
// get rid of old stuff (note: no destructors called)
|
|
delete[] (BYTE*)m_pData;
|
|
m_pData = pNewData;
|
|
m_nSize = nNewSize;
|
|
m_nMaxSize = nNewMax;
|
|
}
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
int CDXArray<TYPE, ARG_TYPE>::Append(const CDXArray& src)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
_ASSERT( this != &src ); // cannot append to itself
|
|
|
|
int nOldSize = m_nSize;
|
|
SetSize(m_nSize + src.m_nSize);
|
|
DXCopyElements(m_pData + nOldSize, src.m_pData, src.m_nSize);
|
|
return nOldSize;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXArray<TYPE, ARG_TYPE>::Copy(const CDXArray& src)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
_ASSERT( this != &src ); // cannot copy to itself
|
|
|
|
SetSize(src.m_nSize);
|
|
DXCopyElements(m_pData, src.m_pData, src.m_nSize);
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXArray<TYPE, ARG_TYPE>::FreeExtra()
|
|
{
|
|
DXASSERT_VALID( this );
|
|
|
|
if (m_nSize != m_nMaxSize)
|
|
{
|
|
// shrink to desired size
|
|
#ifdef SIZE_T_MAX
|
|
_ASSERT( m_nSize <= SIZE_T_MAX/sizeof(TYPE)); // no overflow
|
|
#endif
|
|
TYPE* pNewData = NULL;
|
|
if (m_nSize != 0)
|
|
{
|
|
pNewData = (TYPE*) new BYTE[m_nSize * sizeof(TYPE)];
|
|
// copy new data from old
|
|
memcpy(pNewData, m_pData, m_nSize * sizeof(TYPE));
|
|
}
|
|
|
|
// get rid of old stuff (note: no destructors called)
|
|
delete[] (BYTE*)m_pData;
|
|
m_pData = pNewData;
|
|
m_nMaxSize = m_nSize;
|
|
}
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXArray<TYPE, ARG_TYPE>::SetAtGrow(int nIndex, ARG_TYPE newElement)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
_ASSERT( nIndex >= 0 );
|
|
|
|
if (nIndex >= m_nSize)
|
|
SetSize(nIndex+1, -1);
|
|
m_pData[nIndex] = newElement;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXArray<TYPE, ARG_TYPE>::InsertAt(int nIndex, ARG_TYPE newElement, int nCount /*=1*/)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
_ASSERT( nIndex >= 0 ); // will expand to meet need
|
|
_ASSERT( nCount > 0 ); // zero or negative size not allowed
|
|
|
|
if (nIndex >= m_nSize)
|
|
{
|
|
// adding after the end of the array
|
|
SetSize(nIndex + nCount, -1); // grow so nIndex is valid
|
|
}
|
|
else
|
|
{
|
|
// inserting in the middle of the array
|
|
int nOldSize = m_nSize;
|
|
SetSize(m_nSize + nCount, -1); // grow it to new size
|
|
// shift old data up to fill gap
|
|
memmove(&m_pData[nIndex+nCount], &m_pData[nIndex],
|
|
(nOldSize-nIndex) * sizeof(TYPE));
|
|
|
|
// re-init slots we copied from
|
|
DXConstructElements(&m_pData[nIndex], nCount);
|
|
}
|
|
|
|
// insert new value in the gap
|
|
_ASSERT( nIndex + nCount <= m_nSize );
|
|
while (nCount--)
|
|
m_pData[nIndex++] = newElement;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXArray<TYPE, ARG_TYPE>::RemoveAt(int nIndex, int nCount)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
_ASSERT( nIndex >= 0 );
|
|
_ASSERT( nCount >= 0 );
|
|
_ASSERT( nIndex + nCount <= m_nSize );
|
|
|
|
// just remove a range
|
|
int nMoveCount = m_nSize - (nIndex + nCount);
|
|
DXDestructElements(&m_pData[nIndex], nCount);
|
|
if (nMoveCount)
|
|
memcpy(&m_pData[nIndex], &m_pData[nIndex + nCount],
|
|
nMoveCount * sizeof(TYPE));
|
|
m_nSize -= nCount;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXArray<TYPE, ARG_TYPE>::InsertAt(int nStartIndex, CDXArray* pNewArray)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
DXASSERT_VALID( pNewArray );
|
|
_ASSERT( nStartIndex >= 0 );
|
|
|
|
if (pNewArray->GetSize() > 0)
|
|
{
|
|
InsertAt(nStartIndex, pNewArray->GetAt(0), pNewArray->GetSize());
|
|
for (int i = 0; i < pNewArray->GetSize(); i++)
|
|
SetAt(nStartIndex + i, pNewArray->GetAt(i));
|
|
}
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXArray<TYPE, ARG_TYPE>::Sort(int (__cdecl *compare )(const void *elem1, const void *elem2 ))
|
|
{
|
|
DXASSERT_VALID( this );
|
|
_ASSERT( m_pData != NULL );
|
|
|
|
qsort( m_pData, m_nSize, sizeof(TYPE), compare );
|
|
}
|
|
|
|
#ifdef _DEBUG
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXArray<TYPE, ARG_TYPE>::AssertValid() const
|
|
{
|
|
if (m_pData == NULL)
|
|
{
|
|
_ASSERT( m_nSize == 0 );
|
|
_ASSERT( m_nMaxSize == 0 );
|
|
}
|
|
else
|
|
{
|
|
_ASSERT( m_nSize >= 0 );
|
|
_ASSERT( m_nMaxSize >= 0 );
|
|
_ASSERT( m_nSize <= m_nMaxSize );
|
|
_ASSERT( DXIsValidAddress(m_pData, m_nMaxSize * sizeof(TYPE), TRUE ) );
|
|
}
|
|
}
|
|
#endif //_DEBUG
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CDXList<TYPE, ARG_TYPE>
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
class CDXList
|
|
{
|
|
protected:
|
|
struct CNode
|
|
{
|
|
CNode* pNext;
|
|
CNode* pPrev;
|
|
TYPE data;
|
|
};
|
|
public:
|
|
|
|
// Construction
|
|
CDXList(int nBlockSize = 10);
|
|
|
|
// Attributes (head and tail)
|
|
// count of elements
|
|
int GetCount() const;
|
|
BOOL IsEmpty() const;
|
|
|
|
// peek at head or tail
|
|
TYPE& GetHead();
|
|
TYPE GetHead() const;
|
|
TYPE& GetTail();
|
|
TYPE GetTail() const;
|
|
|
|
// Operations
|
|
// get head or tail (and remove it) - don't call on empty list !
|
|
TYPE RemoveHead();
|
|
TYPE RemoveTail();
|
|
|
|
// add before head or after tail
|
|
DXLISTPOS AddHead(ARG_TYPE newElement);
|
|
DXLISTPOS AddTail(ARG_TYPE newElement);
|
|
|
|
// add another list of elements before head or after tail
|
|
void AddHead(CDXList* pNewList);
|
|
void AddTail(CDXList* pNewList);
|
|
|
|
// remove all elements
|
|
void RemoveAll();
|
|
|
|
// iteration
|
|
DXLISTPOS GetHeadPosition() const;
|
|
DXLISTPOS GetTailPosition() const;
|
|
TYPE& GetNext(DXLISTPOS& rPosition); // return *Position++
|
|
TYPE GetNext(DXLISTPOS& rPosition) const; // return *Position++
|
|
TYPE& GetPrev(DXLISTPOS& rPosition); // return *Position--
|
|
TYPE GetPrev(DXLISTPOS& rPosition) const; // return *Position--
|
|
|
|
// getting/modifying an element at a given position
|
|
TYPE& GetAt(DXLISTPOS position);
|
|
TYPE GetAt(DXLISTPOS position) const;
|
|
void SetAt(DXLISTPOS pos, ARG_TYPE newElement);
|
|
void RemoveAt(DXLISTPOS position);
|
|
|
|
// inserting before or after a given position
|
|
DXLISTPOS InsertBefore(DXLISTPOS position, ARG_TYPE newElement);
|
|
DXLISTPOS InsertAfter(DXLISTPOS position, ARG_TYPE newElement);
|
|
|
|
// helper functions (note: O(n) speed)
|
|
DXLISTPOS Find(ARG_TYPE searchValue, DXLISTPOS startAfter = NULL) const;
|
|
// defaults to starting at the HEAD, return NULL if not found
|
|
DXLISTPOS FindIndex(int nIndex) const;
|
|
// get the 'nIndex'th element (may return NULL)
|
|
|
|
// Implementation
|
|
protected:
|
|
CNode* m_pNodeHead;
|
|
CNode* m_pNodeTail;
|
|
int m_nCount;
|
|
CNode* m_pNodeFree;
|
|
struct CDXPlex* m_pBlocks;
|
|
int m_nBlockSize;
|
|
|
|
CNode* NewNode(CNode*, CNode*);
|
|
void FreeNode(CNode*);
|
|
|
|
public:
|
|
~CDXList();
|
|
#ifdef _DEBUG
|
|
void AssertValid() const;
|
|
#endif
|
|
};
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CDXList<TYPE, ARG_TYPE> inline functions
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline int CDXList<TYPE, ARG_TYPE>::GetCount() const
|
|
{ return m_nCount; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline BOOL CDXList<TYPE, ARG_TYPE>::IsEmpty() const
|
|
{ return m_nCount == 0; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE& CDXList<TYPE, ARG_TYPE>::GetHead()
|
|
{ _ASSERT( m_pNodeHead != NULL );
|
|
return m_pNodeHead->data; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE CDXList<TYPE, ARG_TYPE>::GetHead() const
|
|
{ _ASSERT( m_pNodeHead != NULL );
|
|
return m_pNodeHead->data; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE& CDXList<TYPE, ARG_TYPE>::GetTail()
|
|
{ _ASSERT( m_pNodeTail != NULL );
|
|
return m_pNodeTail->data; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE CDXList<TYPE, ARG_TYPE>::GetTail() const
|
|
{ _ASSERT( m_pNodeTail != NULL );
|
|
return m_pNodeTail->data; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline DXLISTPOS CDXList<TYPE, ARG_TYPE>::GetHeadPosition() const
|
|
{ return (DXLISTPOS) m_pNodeHead; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline DXLISTPOS CDXList<TYPE, ARG_TYPE>::GetTailPosition() const
|
|
{ return (DXLISTPOS) m_pNodeTail; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE& CDXList<TYPE, ARG_TYPE>::GetNext(DXLISTPOS& rPosition) // return *Position++
|
|
{ CNode* pNode = (CNode*) rPosition;
|
|
_ASSERT( DXIsValidAddress(pNode, sizeof(CNode), TRUE ) );
|
|
rPosition = (DXLISTPOS) pNode->pNext;
|
|
return pNode->data; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE CDXList<TYPE, ARG_TYPE>::GetNext(DXLISTPOS& rPosition) const // return *Position++
|
|
{ CNode* pNode = (CNode*) rPosition;
|
|
_ASSERT( DXIsValidAddress(pNode, sizeof(CNode), TRUE ) );
|
|
rPosition = (DXLISTPOS) pNode->pNext;
|
|
return pNode->data; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE& CDXList<TYPE, ARG_TYPE>::GetPrev(DXLISTPOS& rPosition) // return *Position--
|
|
{ CNode* pNode = (CNode*) rPosition;
|
|
_ASSERT( DXIsValidAddress(pNode, sizeof(CNode), TRUE ) );
|
|
rPosition = (DXLISTPOS) pNode->pPrev;
|
|
return pNode->data; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE CDXList<TYPE, ARG_TYPE>::GetPrev(DXLISTPOS& rPosition) const // return *Position--
|
|
{ CNode* pNode = (CNode*) rPosition;
|
|
_ASSERT( DXIsValidAddress(pNode, sizeof(CNode), TRUE ) );
|
|
rPosition = (DXLISTPOS) pNode->pPrev;
|
|
return pNode->data; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE& CDXList<TYPE, ARG_TYPE>::GetAt(DXLISTPOS position)
|
|
{ CNode* pNode = (CNode*) position;
|
|
_ASSERT( DXIsValidAddress(pNode, sizeof(CNode), TRUE ) );
|
|
return pNode->data; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline TYPE CDXList<TYPE, ARG_TYPE>::GetAt(DXLISTPOS position) const
|
|
{ CNode* pNode = (CNode*) position;
|
|
_ASSERT( DXIsValidAddress(pNode, sizeof(CNode), TRUE ) );
|
|
return pNode->data; }
|
|
template<class TYPE, class ARG_TYPE>
|
|
inline void CDXList<TYPE, ARG_TYPE>::SetAt(DXLISTPOS pos, ARG_TYPE newElement)
|
|
{ CNode* pNode = (CNode*) pos;
|
|
_ASSERT( DXIsValidAddress(pNode, sizeof(CNode), TRUE ) );
|
|
pNode->data = newElement; }
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CDXList<TYPE, ARG_TYPE> out-of-line functions
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
CDXList<TYPE, ARG_TYPE>::CDXList( int nBlockSize )
|
|
{
|
|
_ASSERT( nBlockSize > 0 );
|
|
|
|
m_nCount = 0;
|
|
m_pNodeHead = m_pNodeTail = m_pNodeFree = NULL;
|
|
m_pBlocks = NULL;
|
|
m_nBlockSize = nBlockSize;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXList<TYPE, ARG_TYPE>::RemoveAll()
|
|
{
|
|
DXASSERT_VALID( this );
|
|
|
|
// destroy elements
|
|
CNode* pNode;
|
|
for (pNode = m_pNodeHead; pNode != NULL; pNode = pNode->pNext)
|
|
DXDestructElements(&pNode->data, 1);
|
|
|
|
m_nCount = 0;
|
|
m_pNodeHead = m_pNodeTail = m_pNodeFree = NULL;
|
|
m_pBlocks->FreeDataChain();
|
|
m_pBlocks = NULL;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
CDXList<TYPE, ARG_TYPE>::~CDXList()
|
|
{
|
|
RemoveAll();
|
|
_ASSERT( m_nCount == 0 );
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// Node helpers
|
|
//
|
|
// Implementation note: CNode's are stored in CDXPlex blocks and
|
|
// chained together. Free blocks are maintained in a singly linked list
|
|
// using the 'pNext' member of CNode with 'm_pNodeFree' as the head.
|
|
// Used blocks are maintained in a doubly linked list using both 'pNext'
|
|
// and 'pPrev' as links and 'm_pNodeHead' and 'm_pNodeTail'
|
|
// as the head/tail.
|
|
//
|
|
// We never free a CDXPlex block unless the List is destroyed or RemoveAll()
|
|
// is used - so the total number of CDXPlex blocks may grow large depending
|
|
// on the maximum past size of the list.
|
|
//
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
CDXList<TYPE, ARG_TYPE>::CNode*
|
|
CDXList<TYPE, ARG_TYPE>::NewNode(CDXList::CNode* pPrev, CDXList::CNode* pNext)
|
|
{
|
|
if (m_pNodeFree == NULL)
|
|
{
|
|
// add another block
|
|
CDXPlex* pNewBlock = CDXPlex::Create(m_pBlocks, m_nBlockSize,
|
|
sizeof(CNode));
|
|
|
|
// chain them into free list
|
|
CNode* pNode = (CNode*) pNewBlock->data();
|
|
// free in reverse order to make it easier to debug
|
|
pNode += m_nBlockSize - 1;
|
|
for (int i = m_nBlockSize-1; i >= 0; i--, pNode--)
|
|
{
|
|
pNode->pNext = m_pNodeFree;
|
|
m_pNodeFree = pNode;
|
|
}
|
|
}
|
|
_ASSERT( m_pNodeFree != NULL ); // we must have something
|
|
|
|
CDXList::CNode* pNode = m_pNodeFree;
|
|
m_pNodeFree = m_pNodeFree->pNext;
|
|
pNode->pPrev = pPrev;
|
|
pNode->pNext = pNext;
|
|
m_nCount++;
|
|
_ASSERT( m_nCount > 0 ); // make sure we don't overflow
|
|
|
|
DXConstructElements(&pNode->data, 1);
|
|
return pNode;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXList<TYPE, ARG_TYPE>::FreeNode(CDXList::CNode* pNode)
|
|
{
|
|
DXDestructElements(&pNode->data, 1);
|
|
pNode->pNext = m_pNodeFree;
|
|
m_pNodeFree = pNode;
|
|
m_nCount--;
|
|
_ASSERT( m_nCount >= 0 ); // make sure we don't underflow
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
DXLISTPOS CDXList<TYPE, ARG_TYPE>::AddHead(ARG_TYPE newElement)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
|
|
CNode* pNewNode = NewNode(NULL, m_pNodeHead);
|
|
pNewNode->data = newElement;
|
|
if (m_pNodeHead != NULL)
|
|
m_pNodeHead->pPrev = pNewNode;
|
|
else
|
|
m_pNodeTail = pNewNode;
|
|
m_pNodeHead = pNewNode;
|
|
return (DXLISTPOS) pNewNode;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
DXLISTPOS CDXList<TYPE, ARG_TYPE>::AddTail(ARG_TYPE newElement)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
|
|
CNode* pNewNode = NewNode(m_pNodeTail, NULL);
|
|
pNewNode->data = newElement;
|
|
if (m_pNodeTail != NULL)
|
|
m_pNodeTail->pNext = pNewNode;
|
|
else
|
|
m_pNodeHead = pNewNode;
|
|
m_pNodeTail = pNewNode;
|
|
return (DXLISTPOS) pNewNode;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXList<TYPE, ARG_TYPE>::AddHead(CDXList* pNewList)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
DXASSERT_VALID( pNewList );
|
|
|
|
// add a list of same elements to head (maintain order)
|
|
DXLISTPOS pos = pNewList->GetTailPosition();
|
|
while (pos != NULL)
|
|
AddHead(pNewList->GetPrev(pos));
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXList<TYPE, ARG_TYPE>::AddTail(CDXList* pNewList)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
DXASSERT_VALID( pNewList );
|
|
|
|
// add a list of same elements
|
|
DXLISTPOS pos = pNewList->GetHeadPosition();
|
|
while (pos != NULL)
|
|
AddTail(pNewList->GetNext(pos));
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
TYPE CDXList<TYPE, ARG_TYPE>::RemoveHead()
|
|
{
|
|
DXASSERT_VALID( this );
|
|
_ASSERT( m_pNodeHead != NULL ); // don't call on empty list !!!
|
|
_ASSERT( DXIsValidAddress(m_pNodeHead, sizeof(CNode), TRUE ) );
|
|
|
|
CNode* pOldNode = m_pNodeHead;
|
|
TYPE returnValue = pOldNode->data;
|
|
|
|
m_pNodeHead = pOldNode->pNext;
|
|
if (m_pNodeHead != NULL)
|
|
m_pNodeHead->pPrev = NULL;
|
|
else
|
|
m_pNodeTail = NULL;
|
|
FreeNode(pOldNode);
|
|
return returnValue;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
TYPE CDXList<TYPE, ARG_TYPE>::RemoveTail()
|
|
{
|
|
DXASSERT_VALID( this );
|
|
_ASSERT( m_pNodeTail != NULL ); // don't call on empty list !!!
|
|
_ASSERT( DXIsValidAddress(m_pNodeTail, sizeof(CNode), TRUE ) );
|
|
|
|
CNode* pOldNode = m_pNodeTail;
|
|
TYPE returnValue = pOldNode->data;
|
|
|
|
m_pNodeTail = pOldNode->pPrev;
|
|
if (m_pNodeTail != NULL)
|
|
m_pNodeTail->pNext = NULL;
|
|
else
|
|
m_pNodeHead = NULL;
|
|
FreeNode(pOldNode);
|
|
return returnValue;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
DXLISTPOS CDXList<TYPE, ARG_TYPE>::InsertBefore(DXLISTPOS position, ARG_TYPE newElement)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
|
|
if (position == NULL)
|
|
return AddHead(newElement); // insert before nothing -> head of the list
|
|
|
|
// Insert it before position
|
|
CNode* pOldNode = (CNode*) position;
|
|
CNode* pNewNode = NewNode(pOldNode->pPrev, pOldNode);
|
|
pNewNode->data = newElement;
|
|
|
|
if (pOldNode->pPrev != NULL)
|
|
{
|
|
_ASSERT( DXIsValidAddress(pOldNode->pPrev, sizeof(CNode), TRUE ) );
|
|
pOldNode->pPrev->pNext = pNewNode;
|
|
}
|
|
else
|
|
{
|
|
_ASSERT( pOldNode == m_pNodeHead );
|
|
m_pNodeHead = pNewNode;
|
|
}
|
|
pOldNode->pPrev = pNewNode;
|
|
return (DXLISTPOS) pNewNode;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
DXLISTPOS CDXList<TYPE, ARG_TYPE>::InsertAfter(DXLISTPOS position, ARG_TYPE newElement)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
|
|
if (position == NULL)
|
|
return AddTail(newElement); // insert after nothing -> tail of the list
|
|
|
|
// Insert it before position
|
|
CNode* pOldNode = (CNode*) position;
|
|
_ASSERT( DXIsValidAddress(pOldNode, sizeof(CNode), TRUE ));
|
|
CNode* pNewNode = NewNode(pOldNode, pOldNode->pNext);
|
|
pNewNode->data = newElement;
|
|
|
|
if (pOldNode->pNext != NULL)
|
|
{
|
|
_ASSERT( DXIsValidAddress(pOldNode->pNext, sizeof(CNode), TRUE ));
|
|
pOldNode->pNext->pPrev = pNewNode;
|
|
}
|
|
else
|
|
{
|
|
_ASSERT( pOldNode == m_pNodeTail );
|
|
m_pNodeTail = pNewNode;
|
|
}
|
|
pOldNode->pNext = pNewNode;
|
|
return (DXLISTPOS) pNewNode;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXList<TYPE, ARG_TYPE>::RemoveAt(DXLISTPOS position)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
|
|
CNode* pOldNode = (CNode*) position;
|
|
_ASSERT( DXIsValidAddress(pOldNode, sizeof(CNode), TRUE ) );
|
|
|
|
// remove pOldNode from list
|
|
if (pOldNode == m_pNodeHead)
|
|
{
|
|
m_pNodeHead = pOldNode->pNext;
|
|
}
|
|
else
|
|
{
|
|
_ASSERT( DXIsValidAddress(pOldNode->pPrev, sizeof(CNode), TRUE ) );
|
|
pOldNode->pPrev->pNext = pOldNode->pNext;
|
|
}
|
|
if (pOldNode == m_pNodeTail)
|
|
{
|
|
m_pNodeTail = pOldNode->pPrev;
|
|
}
|
|
else
|
|
{
|
|
_ASSERT( DXIsValidAddress(pOldNode->pNext, sizeof(CNode), TRUE ) );
|
|
pOldNode->pNext->pPrev = pOldNode->pPrev;
|
|
}
|
|
FreeNode(pOldNode);
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
DXLISTPOS CDXList<TYPE, ARG_TYPE>::FindIndex(int nIndex) const
|
|
{
|
|
DXASSERT_VALID( this );
|
|
_ASSERT( nIndex >= 0 );
|
|
|
|
if (nIndex >= m_nCount)
|
|
return NULL; // went too far
|
|
|
|
CNode* pNode = m_pNodeHead;
|
|
while (nIndex--)
|
|
{
|
|
_ASSERT( DXIsValidAddress(pNode, sizeof(CNode), TRUE ));
|
|
pNode = pNode->pNext;
|
|
}
|
|
return (DXLISTPOS) pNode;
|
|
}
|
|
|
|
template<class TYPE, class ARG_TYPE>
|
|
DXLISTPOS CDXList<TYPE, ARG_TYPE>::Find(ARG_TYPE searchValue, DXLISTPOS startAfter) const
|
|
{
|
|
DXASSERT_VALID( this );
|
|
|
|
CNode* pNode = (CNode*) startAfter;
|
|
if (pNode == NULL)
|
|
{
|
|
pNode = m_pNodeHead; // start at head
|
|
}
|
|
else
|
|
{
|
|
_ASSERT( DXIsValidAddress(pNode, sizeof(CNode), TRUE ) );
|
|
pNode = pNode->pNext; // start after the one specified
|
|
}
|
|
|
|
for (; pNode != NULL; pNode = pNode->pNext)
|
|
if (DXCompareElements(&pNode->data, &searchValue))
|
|
return (DXLISTPOS)pNode;
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef _DEBUG
|
|
template<class TYPE, class ARG_TYPE>
|
|
void CDXList<TYPE, ARG_TYPE>::AssertValid() const
|
|
{
|
|
if (m_nCount == 0)
|
|
{
|
|
// empty list
|
|
_ASSERT( m_pNodeHead == NULL );
|
|
_ASSERT( m_pNodeTail == NULL );
|
|
}
|
|
else
|
|
{
|
|
// non-empty list
|
|
_ASSERT( DXIsValidAddress(m_pNodeHead, sizeof(CNode), TRUE ));
|
|
_ASSERT( DXIsValidAddress(m_pNodeTail, sizeof(CNode), TRUE ));
|
|
}
|
|
}
|
|
#endif //_DEBUG
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>
|
|
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
class CDXMap
|
|
{
|
|
protected:
|
|
// Association
|
|
struct CAssoc
|
|
{
|
|
CAssoc* pNext;
|
|
UINT nHashValue; // needed for efficient iteration
|
|
KEY key;
|
|
VALUE value;
|
|
};
|
|
public:
|
|
// Construction
|
|
CDXMap( int nBlockSize = 10 );
|
|
|
|
// Attributes
|
|
// number of elements
|
|
int GetCount() const;
|
|
BOOL IsEmpty() const;
|
|
|
|
// Lookup
|
|
BOOL Lookup(ARG_KEY key, VALUE& rValue) const;
|
|
|
|
// Operations
|
|
// Lookup and add if not there
|
|
VALUE& operator[](ARG_KEY key);
|
|
|
|
// add a new (key, value) pair
|
|
void SetAt(ARG_KEY key, ARG_VALUE newValue);
|
|
|
|
// removing existing (key, ?) pair
|
|
BOOL RemoveKey(ARG_KEY key);
|
|
void RemoveAll();
|
|
|
|
// iterating all (key, value) pairs
|
|
DXLISTPOS GetStartPosition() const;
|
|
void GetNextAssoc(DXLISTPOS& rNextPosition, KEY& rKey, VALUE& rValue) const;
|
|
|
|
// advanced features for derived classes
|
|
UINT GetHashTableSize() const;
|
|
void InitHashTable(UINT hashSize, BOOL bAllocNow = TRUE);
|
|
|
|
// Implementation
|
|
protected:
|
|
CAssoc** m_pHashTable;
|
|
UINT m_nHashTableSize;
|
|
int m_nCount;
|
|
CAssoc* m_pFreeList;
|
|
struct CDXPlex* m_pBlocks;
|
|
int m_nBlockSize;
|
|
|
|
CAssoc* NewAssoc();
|
|
void FreeAssoc(CAssoc*);
|
|
CAssoc* GetAssocAt(ARG_KEY, UINT&) const;
|
|
|
|
public:
|
|
~CDXMap();
|
|
#ifdef _DEBUG
|
|
// void Dump(CDumpContext&) const;
|
|
void AssertValid() const;
|
|
#endif
|
|
};
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE> inline functions
|
|
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
inline int CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::GetCount() const
|
|
{ return m_nCount; }
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
inline BOOL CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::IsEmpty() const
|
|
{ return m_nCount == 0; }
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
inline void CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::SetAt(ARG_KEY key, ARG_VALUE newValue)
|
|
{ (*this)[key] = newValue; }
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
inline DXLISTPOS CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::GetStartPosition() const
|
|
{ return (m_nCount == 0) ? NULL : DX_BEFORE_START_POSITION; }
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
inline UINT CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::GetHashTableSize() const
|
|
{ return m_nHashTableSize; }
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE> out-of-line functions
|
|
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::CDXMap( int nBlockSize )
|
|
{
|
|
_ASSERT( nBlockSize > 0 );
|
|
|
|
m_pHashTable = NULL;
|
|
m_nHashTableSize = 17; // default size
|
|
m_nCount = 0;
|
|
m_pFreeList = NULL;
|
|
m_pBlocks = NULL;
|
|
m_nBlockSize = nBlockSize;
|
|
}
|
|
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
void CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::InitHashTable(
|
|
UINT nHashSize, BOOL bAllocNow)
|
|
//
|
|
// Used to force allocation of a hash table or to override the default
|
|
// hash table size of (which is fairly small)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
_ASSERT( m_nCount == 0 );
|
|
_ASSERT( nHashSize > 0 );
|
|
|
|
if (m_pHashTable != NULL)
|
|
{
|
|
// free hash table
|
|
delete[] m_pHashTable;
|
|
m_pHashTable = NULL;
|
|
}
|
|
|
|
if (bAllocNow)
|
|
{
|
|
m_pHashTable = new CAssoc* [nHashSize];
|
|
memset(m_pHashTable, 0, sizeof(CAssoc*) * nHashSize);
|
|
}
|
|
m_nHashTableSize = nHashSize;
|
|
}
|
|
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
void CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::RemoveAll()
|
|
{
|
|
DXASSERT_VALID( this );
|
|
|
|
if (m_pHashTable != NULL)
|
|
{
|
|
// destroy elements (values and keys)
|
|
for (UINT nHash = 0; nHash < m_nHashTableSize; nHash++)
|
|
{
|
|
CAssoc* pAssoc;
|
|
for (pAssoc = m_pHashTable[nHash]; pAssoc != NULL;
|
|
pAssoc = pAssoc->pNext)
|
|
{
|
|
DXDestructElements(&pAssoc->value, 1);
|
|
DXDestructElements(&pAssoc->key, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
// free hash table
|
|
delete[] m_pHashTable;
|
|
m_pHashTable = NULL;
|
|
|
|
m_nCount = 0;
|
|
m_pFreeList = NULL;
|
|
m_pBlocks->FreeDataChain();
|
|
m_pBlocks = NULL;
|
|
}
|
|
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::~CDXMap()
|
|
{
|
|
RemoveAll();
|
|
_ASSERT( m_nCount == 0 );
|
|
}
|
|
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::CAssoc*
|
|
CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::NewAssoc()
|
|
{
|
|
if (m_pFreeList == NULL)
|
|
{
|
|
// add another block
|
|
CDXPlex* newBlock = CDXPlex::Create(m_pBlocks, m_nBlockSize, sizeof(CDXMap::CAssoc));
|
|
// chain them into free list
|
|
CDXMap::CAssoc* pAssoc = (CDXMap::CAssoc*) newBlock->data();
|
|
// free in reverse order to make it easier to debug
|
|
pAssoc += m_nBlockSize - 1;
|
|
for (int i = m_nBlockSize-1; i >= 0; i--, pAssoc--)
|
|
{
|
|
pAssoc->pNext = m_pFreeList;
|
|
m_pFreeList = pAssoc;
|
|
}
|
|
}
|
|
_ASSERT( m_pFreeList != NULL ); // we must have something
|
|
|
|
CDXMap::CAssoc* pAssoc = m_pFreeList;
|
|
m_pFreeList = m_pFreeList->pNext;
|
|
m_nCount++;
|
|
_ASSERT( m_nCount > 0 ); // make sure we don't overflow
|
|
DXConstructElements(&pAssoc->key, 1);
|
|
DXConstructElements(&pAssoc->value, 1); // special construct values
|
|
return pAssoc;
|
|
}
|
|
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
void CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::FreeAssoc(CDXMap::CAssoc* pAssoc)
|
|
{
|
|
DXDestructElements(&pAssoc->value, 1);
|
|
DXDestructElements(&pAssoc->key, 1);
|
|
pAssoc->pNext = m_pFreeList;
|
|
m_pFreeList = pAssoc;
|
|
m_nCount--;
|
|
_ASSERT( m_nCount >= 0 ); // make sure we don't underflow
|
|
}
|
|
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::CAssoc*
|
|
CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::GetAssocAt(ARG_KEY key, UINT& nHash) const
|
|
// find association (or return NULL)
|
|
{
|
|
nHash = DXHashKey(key) % m_nHashTableSize;
|
|
|
|
if (m_pHashTable == NULL)
|
|
return NULL;
|
|
|
|
// see if it exists
|
|
CAssoc* pAssoc;
|
|
for (pAssoc = m_pHashTable[nHash]; pAssoc != NULL; pAssoc = pAssoc->pNext)
|
|
{
|
|
if (DXCompareElements(&pAssoc->key, &key))
|
|
return pAssoc;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
BOOL CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::Lookup(ARG_KEY key, VALUE& rValue) const
|
|
{
|
|
DXASSERT_VALID( this );
|
|
|
|
UINT nHash;
|
|
CAssoc* pAssoc = GetAssocAt(key, nHash);
|
|
if (pAssoc == NULL)
|
|
return FALSE; // not in map
|
|
|
|
rValue = pAssoc->value;
|
|
return TRUE;
|
|
}
|
|
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
VALUE& CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::operator[](ARG_KEY key)
|
|
{
|
|
DXASSERT_VALID( this );
|
|
|
|
UINT nHash;
|
|
CAssoc* pAssoc;
|
|
if ((pAssoc = GetAssocAt(key, nHash)) == NULL)
|
|
{
|
|
if (m_pHashTable == NULL)
|
|
InitHashTable(m_nHashTableSize);
|
|
|
|
// it doesn't exist, add a new Association
|
|
pAssoc = NewAssoc();
|
|
pAssoc->nHashValue = nHash;
|
|
pAssoc->key = key;
|
|
// 'pAssoc->value' is a constructed object, nothing more
|
|
|
|
// put into hash table
|
|
pAssoc->pNext = m_pHashTable[nHash];
|
|
m_pHashTable[nHash] = pAssoc;
|
|
}
|
|
return pAssoc->value; // return new reference
|
|
}
|
|
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
BOOL CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::RemoveKey(ARG_KEY key)
|
|
// remove key - return TRUE if removed
|
|
{
|
|
DXASSERT_VALID( this );
|
|
|
|
if (m_pHashTable == NULL)
|
|
return FALSE; // nothing in the table
|
|
|
|
CAssoc** ppAssocPrev;
|
|
ppAssocPrev = &m_pHashTable[DXHashKey(key) % m_nHashTableSize];
|
|
|
|
CAssoc* pAssoc;
|
|
for (pAssoc = *ppAssocPrev; pAssoc != NULL; pAssoc = pAssoc->pNext)
|
|
{
|
|
if (DXCompareElements(&pAssoc->key, &key))
|
|
{
|
|
// remove it
|
|
*ppAssocPrev = pAssoc->pNext; // remove from list
|
|
FreeAssoc(pAssoc);
|
|
return TRUE;
|
|
}
|
|
ppAssocPrev = &pAssoc->pNext;
|
|
}
|
|
return FALSE; // not found
|
|
}
|
|
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
void CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::GetNextAssoc(DXLISTPOS& rNextPosition,
|
|
KEY& rKey, VALUE& rValue) const
|
|
{
|
|
DXASSERT_VALID( this );
|
|
_ASSERT( m_pHashTable != NULL ); // never call on empty map
|
|
|
|
CAssoc* pAssocRet = (CAssoc*)rNextPosition;
|
|
_ASSERT( pAssocRet != NULL );
|
|
|
|
if (pAssocRet == (CAssoc*) DX_BEFORE_START_POSITION)
|
|
{
|
|
// find the first association
|
|
for (UINT nBucket = 0; nBucket < m_nHashTableSize; nBucket++)
|
|
if ((pAssocRet = m_pHashTable[nBucket]) != NULL)
|
|
break;
|
|
_ASSERT( pAssocRet != NULL ); // must find something
|
|
}
|
|
|
|
// find next association
|
|
_ASSERT( DXIsValidAddress(pAssocRet, sizeof(CAssoc), TRUE ));
|
|
CAssoc* pAssocNext;
|
|
if ((pAssocNext = pAssocRet->pNext) == NULL)
|
|
{
|
|
// go to next bucket
|
|
for (UINT nBucket = pAssocRet->nHashValue + 1;
|
|
nBucket < m_nHashTableSize; nBucket++)
|
|
if ((pAssocNext = m_pHashTable[nBucket]) != NULL)
|
|
break;
|
|
}
|
|
|
|
rNextPosition = (DXLISTPOS) pAssocNext;
|
|
|
|
// fill in return data
|
|
rKey = pAssocRet->key;
|
|
rValue = pAssocRet->value;
|
|
}
|
|
|
|
#ifdef _DEBUG
|
|
template<class KEY, class ARG_KEY, class VALUE, class ARG_VALUE>
|
|
void CDXMap<KEY, ARG_KEY, VALUE, ARG_VALUE>::AssertValid() const
|
|
{
|
|
_ASSERT( m_nHashTableSize > 0 );
|
|
_ASSERT( (m_nCount == 0 || m_pHashTable != NULL) );
|
|
// non-empty map should have hash table
|
|
}
|
|
#endif //_DEBUG
|
|
|
|
#endif //--- This must be the last line in the file
|