136 lines
3.5 KiB
C++
136 lines
3.5 KiB
C++
//+--------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1991 - 1992.
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//
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// File: dfstream.cxx
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//
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// Contents: Implementations of CDocFile stream methods
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//
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// History: 18-Oct-91 DrewB Created
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//
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//---------------------------------------------------------------
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#include <dfhead.cxx>
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#pragma hdrstop
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//+--------------------------------------------------------------
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//
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// Method: CDocFile::CreateStream, public
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//
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// Synopsis: Creates a named stream in a DocFile
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//
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// Arguments: [pwcsName] - Name of the stream
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// [df] - Transactioning flags
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// [dlSet] - LUID to set or DF_NOLUID
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// [dwType] - Type of entry to be created
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// [ppsstStream] - Pointer to storage for the stream pointer
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//
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// Returns: Appropriate error code
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//
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// Modifies: [ppsstStream]
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//
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// History: 22-Aug-91 DrewB Created
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//
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//---------------------------------------------------------------
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#ifdef CODESEGMENTS
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#pragma code_seg(SEG_CDocFile_CreateStream) // Dirdf_Create_TEXT
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#endif
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SCODE CDocFile::CreateStream(CDfName const *pdfn,
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DFLAGS const df,
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DFLUID dlSet,
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PSStream **ppsstStream)
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{
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SCODE sc;
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CDirectStream *pstm;
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olDebugOut((DEB_ITRACE, "In CDocFile::CreateStream("
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"%ws, %X, %lu, %p)\n",
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pdfn, df, dlSet, ppsstStream));
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UNREFERENCED_PARM(df);
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if (dlSet == DF_NOLUID)
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dlSet = CDirectStream::GetNewLuid(_pdfb->GetMalloc());
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#ifndef REF
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pstm = new (BP_TO_P(CDFBasis *, _pdfb)) CDirectStream(dlSet);
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olAssert(pstm != NULL && aMsg("Reserved stream unavailable"));
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#else
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olMem(pstm = new CDirectStream(dlSet));
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#endif //!REF
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olChkTo(EH_pstm, pstm->Init(&_stgh, pdfn, TRUE));
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*ppsstStream = pstm;
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olDebugOut((DEB_ITRACE, "Out CDocFile::CreateStream => %p\n",
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*ppsstStream));
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return S_OK;
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EH_pstm:
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#ifndef REF
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pstm->ReturnToReserve(BP_TO_P(CDFBasis *, _pdfb));
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#else
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delete pstm;
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EH_Err:
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#endif //!REF
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return sc;
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}
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//+--------------------------------------------------------------
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//
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// Method: CDocFile::GetStream, public
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//
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// Synopsis: Retrieves an existing stream from a DocFile
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//
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// Arguments: [pwcsName] - Name of the stream
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// [df] - Transactioning flags
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// [dwType] - Type of entry
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// [ppsstStream] - Pointer to storage for the stream pointer
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//
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// Returns: Appropriate error code
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//
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// Modifies: [ppsstStream]
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//
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// History: 22-Aug-91 DrewB Created
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//
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//---------------------------------------------------------------
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#ifdef CODESEGMENTS
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#pragma code_seg(SEG_CDocFile_GetStream) // Dirdf_Open_TEXT
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#endif
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SCODE CDocFile::GetStream(CDfName const *pdfn,
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DFLAGS const df,
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PSStream **ppsstStream)
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{
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SCODE sc;
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CDirectStream *pstm;
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olDebugOut((DEB_ITRACE, "In CDocFile::GetStream(%ws, %X, %p)\n",
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pdfn, df, ppsstStream));
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UNREFERENCED_PARM(df);
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DFLUID dl = CDirectStream::GetNewLuid(_pdfb->GetMalloc());
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#ifndef REF
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olMem(pstm = new(_pdfb->GetMalloc()) CDirectStream(dl));
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#else
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olMem(pstm = new CDirectStream(dl));
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#endif //!REF
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olChkTo(EH_pstm, pstm->Init(&_stgh, pdfn, FALSE));
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*ppsstStream = pstm;
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olDebugOut((DEB_ITRACE, "Out CDocFile::GetStream => %p\n",
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*ppsstStream));
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return S_OK;
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EH_pstm:
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delete pstm;
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EH_Err:
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return sc;
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}
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