126 lines
2.8 KiB
C++
126 lines
2.8 KiB
C++
/********************************************************************
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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PFArray.cpp
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Abstract:
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dynamic array table definition.
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Revision History:
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DerekM created 03/14/00
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********************************************************************/
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#ifndef PFARRAY_H
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#define PFARRAY_H
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#include "util.h"
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typedef void (*pfnPFArrayDelete)(LPVOID pv);
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typedef LPVOID (*pfnPFArrayAllocCopy)(LPVOID pv);
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/////////////////////////////////////////////////////////////////////////////
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// CPFArray definition
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class CPFArrayBase : public CPFPrivHeapGenericClassBase
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{
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protected:
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// member data
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pfnPFArrayAllocCopy m_pfnAlloc;
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pfnPFArrayDelete m_pfnDelete;
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LPVOID *m_rgpv;
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DWORD m_cSlots;
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DWORD m_iHighest;
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// internal methods
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virtual void DeleteItem(LPVOID pv)
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{
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if (m_pfnDelete != NULL && pv != NULL)
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(*m_pfnDelete)(pv);
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}
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virtual LPVOID AllocItemCopy(LPVOID pv)
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{
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return (m_pfnAlloc != NULL && pv != NULL) ? ((*m_pfnAlloc)(pv)) : NULL;
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}
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HRESULT CompressArray(DWORD iStart, DWORD iEnd);
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HRESULT Grow(DWORD iMinLast);
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HRESULT internalCopyFrom(CPFArrayBase *rg);
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public:
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// construction
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CPFArrayBase(void);
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virtual ~CPFArrayBase(void);
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// exposed methods
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void SetDeleteMethod(pfnPFArrayDelete pfnDelete) { m_pfnDelete = pfnDelete; }
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void SetAllocMethod(pfnPFArrayAllocCopy pfnAlloc) { m_pfnAlloc = pfnAlloc; }
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LPVOID &operator [](DWORD index);
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HRESULT Init(DWORD cSlots);
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DWORD get_Highest(void) { return m_iHighest; }
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HRESULT Append(LPVOID pv);
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HRESULT Remove(DWORD iItem, LPVOID *ppvOld = NULL);
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HRESULT RemoveAll(void);
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HRESULT get_Item(DWORD iItem, LPVOID *ppv);
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HRESULT put_Item(DWORD iItem, LPVOID pv, LPVOID *ppvOld = NULL);
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};
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/////////////////////////////////////////////////////////////////////////////
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// CPFArrayBSTR definition
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class CPFArrayBSTR : public CPFArrayBase
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{
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private:
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void DeleteItem(LPVOID pv)
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{
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SysFreeString((BSTR)pv);
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}
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LPVOID AllocItemCopy(LPVOID pv)
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{
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return (pv != NULL) ? ((LPVOID)SysAllocString((BSTR)pv)) : NULL;
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}
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public:
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HRESULT CopyFrom(CPFArrayBSTR *prg)
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{
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return internalCopyFrom(prg);
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}
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};
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/////////////////////////////////////////////////////////////////////////////
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// CPFArrayUnk definition
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class CPFArrayUnknown : public CPFArrayBase
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{
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private:
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void DeleteItem(LPVOID pv)
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{
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if (pv != NULL)
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((LPUNKNOWN)pv)->Release();
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}
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LPVOID AllocItemCopy(LPVOID pv)
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{
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if (pv != NULL)
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((LPUNKNOWN)pv)->AddRef();
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return pv;
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}
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public:
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HRESULT CopyFrom(CPFArrayUnknown *prg)
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{
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return internalCopyFrom(prg);
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}
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};
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#endif
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