194 lines
5 KiB
C++
194 lines
5 KiB
C++
/*****************************************************************************\
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CFtpList.cpp - Internal list manager
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It is the caller's responsibility to manage any needed serialization.
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\*****************************************************************************/
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#include "priv.h"
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#include "ftplist.h"
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/*****************************************************************************\
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FUNCTION: CFtpList::DeleteItemPtr
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Remove the element "pv" from the array.
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\*****************************************************************************/
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void CFtpList::DeleteItemPtr(LPVOID pv)
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{
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int nIndex;
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ASSERT(m_hdpa);
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nIndex = DPA_GetPtrIndex(m_hdpa, pv);
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TraceMsg(TF_FTPLIST, "CFtpList::DeleteItemPtr(pv=%#08lx) this=%#08lx, nIndex=%d", pv, this, nIndex);
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if (-1 != nIndex)
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DPA_DeletePtr(m_hdpa, nIndex);
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}
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/*****************************************************************************\
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FUNCTION: AppendItem
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Add a new pv to the growing array.
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\*****************************************************************************/
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HRESULT CFtpList::AppendItem(LPVOID pv)
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{
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ASSERT(m_hdpa);
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DPA_AppendPtr(m_hdpa, pv);
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//TraceMsg(TF_FTPLIST, "CFtpList::AppendItem(pv=%#08lx) this=%#08lx", pv, this);
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return S_OK;
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}
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/*****************************************************************************\
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FUNCTION: InsertSorted
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Add a new pv to the growing array.
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\*****************************************************************************/
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HRESULT CFtpList::InsertSorted(LPVOID pv, PFNDPACOMPARE pfnCompare, LPARAM lParam)
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{
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ASSERT(m_hdpa);
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DPA_SortedInsertPtr(m_hdpa, pv, 0, pfnCompare, lParam, DPAS_INSERTBEFORE, pv);
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return S_OK;
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}
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/*****************************************************************************\
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FUNCTION: SortedSearch
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DESCRIPTION:
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Search thru the list for the item.
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\*****************************************************************************/
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int CFtpList::SortedSearch(LPVOID pv, PFNDPACOMPARE pfnCompare, LPARAM lParam, UINT options)
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{
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return DPA_Search(m_hdpa, pv, 0, pfnCompare, lParam, options);
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}
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/*****************************************************************************\
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FUNCTION: Find
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Call back once for each item in the pv list. Stops when the
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callback returns 0, returning the item that triggered the match.
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The callback typically returns the result of a comparison function.
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\*****************************************************************************/
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LPVOID CFtpList::Find(PFNDPACOMPARE pfn, LPCVOID pv)
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{
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LPVOID pvoid = NULL;
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int nIndex;
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nIndex = DPA_Search(m_hdpa, (LPVOID) pv, 0, pfn, NULL, 0);
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if (-1 != nIndex)
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pvoid = DPA_GetPtr(m_hdpa, nIndex);
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//TraceMsg(TF_FTPLIST, "CFtpList::Find(pfn=%#08lx; pv=%#08lx) this=%#08lx, nIndex=%d, result=%#08lx", pfn, pv, this, nIndex, pvoid);
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return pvoid;
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}
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/*****************************************************************************\
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CFtpList_Create
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Start up a new pv list, with a recommended initial size and other
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callback info.
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\*****************************************************************************/
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HRESULT CFtpList_Create(int cpvInit, PFNDPAENUMCALLBACK pfn, UINT nGrow, CFtpList ** ppfl)
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{
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HRESULT hres = E_OUTOFMEMORY;
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CFtpList * pfl = new CFtpList(pfn);
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*ppfl = pfl;
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if (pfl)
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{
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pfl->m_hdpa = DPA_Create(nGrow);
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//CFtpList_Create(pfn=%#08lx) this=%#08lx, cpvInit=%d, nGrow=%d", pfn, pfl, cpvInit, nGrow);
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if (EVAL(pfl->m_hdpa))
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hres = S_OK;
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else
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{
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pfl->Release();
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*ppfl = NULL;
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}
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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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CFtpList::CFtpList(PFNDPAENUMCALLBACK pfnDestroy) : 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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ASSERT(!m_hdpa);
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m_pfnDestroy = pfnDestroy;
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LEAK_ADDREF(LEAK_CFtpList);
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}
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/****************************************************\
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Destructor
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\****************************************************/
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CFtpList::~CFtpList()
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{
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//TraceMsg(TF_FTPLIST, "CFtpList::~CFtpList() this=%#08lx", this);
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if (m_pfnDestroy)
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DPA_DestroyCallback(m_hdpa, m_pfnDestroy, NULL);
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else
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DPA_Destroy(m_hdpa);
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DllRelease();
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LEAK_DELREF(LEAK_CFtpList);
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}
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//===========================
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// *** IUnknown Interface ***
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//===========================
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ULONG CFtpList::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 CFtpList::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 CFtpList::QueryInterface(REFIID riid, void **ppvObj)
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{
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if (IsEqualIID(riid, IID_IUnknown))
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{
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*ppvObj = SAFECAST(this, IUnknown *);
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}
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else
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{
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TraceMsg(TF_FTPQI, "CFtpList::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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