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92 lines
2.3 KiB
92 lines
2.3 KiB
//*********************************************************************
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//* Microsoft Windows **
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//* Copyright(c) Microsoft Corp., 1995 **
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//*********************************************************************
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//
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// CLIST.CPP
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//
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// HISTORY:
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//
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// 9/10/95 philco Created.
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// 4/05/96 VatsanP Copied from MSHTML to URLMON\DOWNLOAD
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// to use for the code downloader
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// changed name to CLIST.CXX to make JoahnnP happy :)
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//
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//
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// Templated list class "borrowed" from MFC 3.0. Used to manage a
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// list of IOleObject pointers to embedded items.
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//
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#include <cdlpch.h>
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#ifndef unix
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#include "..\inc\clist.hxx"
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#else
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#include "../inc/clist.hxx"
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#endif /* unix */
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BOOL AFXAPI AfxIsValidAddress(const void* lp, UINT nBytes, BOOL bReadWrite)
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{
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DEBUG_ENTER((DBG_DOWNLOAD,
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Bool,
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"AfxIsValidAddress",
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"%#x, %x, %B",
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lp, nBytes, bReadWrite
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));
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// simple version using Win-32 APIs for pointer validation.
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BOOL bRet = (lp != NULL && !IsBadReadPtr(lp, nBytes) &&
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(!bReadWrite || !IsBadWritePtr((LPVOID)lp, nBytes)));
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DEBUG_LEAVE(bRet);
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return bRet;
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}
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CPlex* PASCAL CPlex::Create(CPlex*& pHead, UINT nMax, UINT cbElement)
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{
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DEBUG_ENTER((DBG_DOWNLOAD,
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Pointer,
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"CPlex::Create",
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"%#x, %x, %x",
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&pHead, nMax, cbElement
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));
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ASSERT(nMax > 0 && cbElement > 0);
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CPlex* p = (CPlex*) new (BYTE[sizeof(CPlex) + nMax* cbElement]);
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// may throw exception
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Assert(p != NULL);
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p->nMax = nMax;
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p->nCur = 0;
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p->pNext = pHead;
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pHead = p; // change head (adds in reverse order for simplicity)
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DEBUG_LEAVE(p);
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return p;
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}
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void CPlex::FreeDataChain() // free this one and links
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{
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DEBUG_ENTER((DBG_DOWNLOAD,
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None,
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"CPlex::FreeDataChain",
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"this=%#x",
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this
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));
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CPlex* p = this;
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while (p != NULL)
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{
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BYTE* bytes = (BYTE*) p;
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CPlex* pNext = p->pNext;
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delete (bytes);
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p = pNext;
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}
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DEBUG_LEAVE(0);
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}
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