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156 lines
3.8 KiB
156 lines
3.8 KiB
/*****************************************************************************
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*
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* ftpmi.cpp - IMalloc interface for allocing pidls
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*
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*****************************************************************************/
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#include "priv.h"
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#include "ftpmi.h"
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/*****************************************************************************
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* IMalloc::Alloc
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*****************************************************************************/
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LPVOID CMallocItem::Alloc(ULONG cbSize)
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{
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WORD cbActualSize = sizeof(DELEGATEITEMID) - 1 + cbSize;
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PDELEGATEITEMID pidl = (PDELEGATEITEMID)SHAlloc(cbActualSize + 2);
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if (pidl)
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{
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pidl->cbSize = cbActualSize;
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pidl->wOuter = 0x6646; // "Ff"
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pidl->cbInner = (WORD)cbSize;
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*(WORD *)&(((BYTE *)pidl)[cbActualSize]) = 0;
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}
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return pidl;
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}
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/*****************************************************************************
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* IMalloc::Realloc
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*****************************************************************************/
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LPVOID CMallocItem::Realloc(LPVOID pv, ULONG cb)
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{
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return NULL;
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}
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/*****************************************************************************
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* IMalloc::Free
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*****************************************************************************/
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void CMallocItem::Free(LPVOID pv)
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{
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SHFree(pv);
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}
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/*****************************************************************************
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* IMalloc::GetSize
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*****************************************************************************/
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ULONG CMallocItem::GetSize(LPVOID pv)
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{
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return (ULONG)-1;
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}
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/*****************************************************************************
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* IMalloc::DidAlloc
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*****************************************************************************/
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int CMallocItem::DidAlloc(LPVOID pv)
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{
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return -1;
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}
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/*****************************************************************************
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* IMalloc::HeapMinimize
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*****************************************************************************/
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void CMallocItem::HeapMinimize(void)
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{
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NULL;
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}
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/*****************************************************************************
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* CMallocItem_Create
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*****************************************************************************/
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HRESULT CMallocItem_Create(IMalloc ** ppm)
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{
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HRESULT hres = E_OUTOFMEMORY;
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CMallocItem * pmi = new CMallocItem();
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if (pmi)
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{
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hres = pmi->QueryInterface(IID_IMalloc, (LPVOID *) ppm);
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pmi->Release();
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}
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return hres;
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}
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/****************************************************\
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Constructor
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\****************************************************/
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CMallocItem::CMallocItem() : m_cRef(1)
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{
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DllAddRef();
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// This needs to be allocated in Zero Inited Memory.
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// Assert that all Member Variables are inited to Zero.
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LEAK_ADDREF(LEAK_CMallocItem);
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}
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/****************************************************\
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Destructor
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\****************************************************/
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CMallocItem::~CMallocItem()
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{
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DllRelease();
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LEAK_DELREF(LEAK_CMallocItem);
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}
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//===========================
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// *** IUnknown Interface ***
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//===========================
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ULONG CMallocItem::AddRef()
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{
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m_cRef++;
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return m_cRef;
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}
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ULONG CMallocItem::Release()
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{
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ASSERT(m_cRef > 0);
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m_cRef--;
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if (m_cRef > 0)
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return m_cRef;
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delete this;
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return 0;
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}
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HRESULT CMallocItem::QueryInterface(REFIID riid, void **ppvObj)
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{
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if (IsEqualIID(riid, IID_IUnknown) || IsEqualIID(riid, IID_IMalloc))
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{
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*ppvObj = SAFECAST(this, IMalloc *);
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}
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else
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{
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TraceMsg(TF_FTPQI, "CMallocItem::QueryInterface() failed.");
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*ppvObj = NULL;
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return E_NOINTERFACE;
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}
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AddRef();
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return S_OK;
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}
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