118 lines
3.2 KiB
C++
118 lines
3.2 KiB
C++
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//+--------------------------------------------------------------
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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: dfiter.cxx
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//
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// Contents: Implementations of CDocFile iterator methods
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//
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// History: 16-Dec-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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// Member: CDocFile::FindGreaterEntry, public
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//
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// Synopsis: Returns the next greater child
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//
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// Arguments: [pdfnKey] - Previous key
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// [pib] - Fast iterator buffer
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// [pstat] - Full iterator buffer
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//
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// Returns: Appropriate status code
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//
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// Modifies: [pib] or [pstat]
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//
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// History: 16-Apr-93 DrewB Created
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//
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// Notes: Either [pib] or [pstat] must be NULL
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//
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//----------------------------------------------------------------------------
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#ifdef CODESEGMENTS
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#pragma code_seg(SEG_CDocFile_FindGreaterEntry) // Iterate_TEXT
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#endif
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SCODE CDocFile::FindGreaterEntry(CDfName const *pdfnKey,
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SIterBuffer *pib,
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STATSTGW *pstat)
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{
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SID sidChild;
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SCODE sc;
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olDebugOut((DEB_ITRACE, "In CDocFile::FindGreaterEntry:%p(%p, %p, %p)\n",
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this, pdfnKey, pib, pstat));
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olAssert((pib == NULL) != (pstat == NULL));
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if (SUCCEEDED(sc = _stgh.GetMS()->GetChild(_stgh.GetSid(), &sidChild)))
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{
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if (sidChild == NOSTREAM)
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{
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sc = STG_E_NOMOREFILES;
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}
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else
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{
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SID sid = 0; // initialize recursion count to 0
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if (SUCCEEDED(sc = _stgh.GetMS()->FindGreaterEntry(sidChild,
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pdfnKey,
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&sid)))
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{
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sc = _stgh.GetMS()->StatEntry(sid, pib, pstat);
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}
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}
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}
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olDebugOut((DEB_ITRACE, "Out CDocFile::FindGreaterEntry\n"));
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return sc;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CDocFile::StatEntry, public
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//
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// Synopsis: Gets information for a child
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//
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// Arguments: [pdfn] - Child name
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// [pib] - Short information
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// [pstat] - Full information
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//
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// Returns: Appropriate status code
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//
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// Modifies: [pib] or [pstat]
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//
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// History: 16-Apr-93 DrewB Created
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//
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// Notes: Either [pib] or [pstat] must be NULL
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//
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//----------------------------------------------------------------------------
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#ifdef CODESEGMENTS
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#pragma code_seg(SEG_CDocFile_StatEntry)
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#endif
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SCODE CDocFile::StatEntry(CDfName const *pdfn,
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SIterBuffer *pib,
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STATSTGW *pstat)
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{
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SEntryBuffer eb;
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SCODE sc;
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olDebugOut((DEB_ITRACE, "In CDocFile::StatEntry:%p(%p, %p, %p)\n",
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this, pdfn, pib, pstat));
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olAssert((pib == NULL) != (pstat == NULL));
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olChk(_stgh.GetMS()->IsEntry(_stgh.GetSid(), pdfn, &eb));
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sc = _stgh.GetMS()->StatEntry(eb.sid, pib, pstat);
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olDebugOut((DEB_ITRACE, "Out CDocFile::StatEntry\n"));
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EH_Err:
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return sc;
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}
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