74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
#ifndef __VOIDLIST_H
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#define __VOIDLIST_H
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#include "listintr.h"
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struct CNode;
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class CVoidPtrList : public IVoidPtrList
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{
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private:
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enum
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{
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HANDLE_START = 0x00000001,
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HANDLE_END = 0xffffffff
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};
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CNode *m_pEnds[2]; // Head and tail
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DWORD m_cCount;
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DWORD_PTR m_dwCookie;
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LONG m_cRefCount;
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IVPL_COMPAREFUNCTYPE m_pCompareFunc;
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IVPL_FREEITEMFUNCTYPE m_pFreeItemFunc;
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CRITICAL_SECTION m_rCritSect;
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bool m_fInited;
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void SortedAddItem(CNode *pNode);
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void NonSortedAddItem(CNode *pNode);
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CNode* GetHead() {return m_pEnds[LD_FORWARD];}
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CNode* GetTail() {return m_pEnds[LD_REVERSE];}
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void SetHead(CNode* pNode) {m_pEnds[LD_FORWARD] = pNode;}
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void SetTail(CNode* pNode) {m_pEnds[LD_REVERSE] = pNode;}
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CNode* FindItem(DWORD dwHandle);
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DWORD GetNewHandle();
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public:
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CVoidPtrList();
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~CVoidPtrList();
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// IUnknown members
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virtual STDMETHODIMP QueryInterface(REFIID riid, LPVOID * ppvObj) { return E_NOTIMPL;}
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virtual STDMETHODIMP_(ULONG) AddRef(void);
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virtual STDMETHODIMP_(ULONG) Release(void);
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// IVoidPtrList members
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virtual HRESULT STDMETHODCALLTYPE Init(
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IVPL_COMPAREFUNCTYPE pCompareFunc,
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DWORD_PTR dwCookie,
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IVPL_FREEITEMFUNCTYPE pFreeItemFunc,
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DWORD dwInitSize);
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virtual HRESULT STDMETHODCALLTYPE GetCount(DWORD *pdwCount) {
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*pdwCount = m_cCount; return S_OK;}
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virtual HRESULT STDMETHODCALLTYPE ClearList(void);
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virtual HRESULT STDMETHODCALLTYPE AddItem(LPVOID ptr, DWORD *pdwHandle);
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virtual HRESULT STDMETHODCALLTYPE RemoveItem(DWORD dwHandle);
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virtual HRESULT STDMETHODCALLTYPE GetNext(
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LISTDIRECTION bDirection,
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LPVOID *pptr,
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DWORD *pdwHandle);
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virtual HRESULT STDMETHODCALLTYPE SkipNext(LISTDIRECTION bDirection, DWORD *pdwHandle);
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virtual HRESULT STDMETHODCALLTYPE Resort(void);
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static HRESULT CreateInstance(CVoidPtrList** ppList);
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};
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#endif |