70 lines
1.3 KiB
C++
70 lines
1.3 KiB
C++
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//+---------------------------------------------------------------------
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//
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// File: memutils.cxx
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//
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// Contents: IMalloc-related helpers
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//
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//----------------------------------------------------------------------
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#include "headers.hxx"
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#pragma hdrstop
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HRESULT
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OleAllocMem(MEMCTX ctx, ULONG cb, LPVOID FAR* ppv)
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{
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HRESULT r;
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LPMALLOC pMalloc;
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if (OK(r = CoGetMalloc(ctx, &pMalloc)))
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{
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*ppv = pMalloc->Alloc(cb);
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if (*ppv == NULL)
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{
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DOUT(TEXT("o2base/memutils/OleAllocMem failed\r\n"));
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r = E_OUTOFMEMORY;
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}
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pMalloc->Release();
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}
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return r;
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}
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void
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OleFreeMem(MEMCTX ctx, LPVOID pv)
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{
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LPMALLOC pMalloc;
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if (OK(CoGetMalloc(ctx, &pMalloc)))
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{
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pMalloc->Free(pv);
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pMalloc->Release();
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}
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}
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HRESULT
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OleAllocString(MEMCTX ctx, LPCOLESTR lpstrSrc, LPOLESTR FAR* ppstr)
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{
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HRESULT r;
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if (lpstrSrc == NULL)
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{
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*ppstr = NULL;
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r = NOERROR;
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}
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else
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{
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r = OleAllocMem(ctx,
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(ostrlen(lpstrSrc)+1) * sizeof(OLECHAR),
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(LPVOID FAR*)ppstr);
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if (*ppstr != NULL)
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{
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ostrcpy((LPOLESTR)*ppstr, lpstrSrc);
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}
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}
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return r;
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}
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void
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OleFreeString(MEMCTX ctx, LPOLESTR lpstr)
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{
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OleFreeMem(ctx, lpstr);
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}
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