145 lines
3.5 KiB
C++
145 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: iter.cxx
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//
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// Contents: CDocFileIterator implementation
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//
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//---------------------------------------------------------------
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#include "dfhead.cxx"
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#include "h/msfiter.hxx"
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#include "iter.hxx"
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//+--------------------------------------------------------------
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//
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// Member: CDocFileIterator::CDocFileIterator, public
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//
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// Synopsis: Empty object ctor
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//
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//---------------------------------------------------------------
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CDocFileIterator::CDocFileIterator(void)
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{
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olDebugOut((DEB_ITRACE, "In CDocFileIterator::CDocFileIterator()\n"));
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_pi = NULL;
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olDebugOut((DEB_ITRACE, "Out CDocFileIterator::CDocFileIterator\n"));
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}
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//+--------------------------------------------------------------
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//
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// Member: CDocFileIterator::Init
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//
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// Synopsis: Constructor
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//
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// Arguments: [ph] - Multistream handle
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//
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// Returns: Appropriate status code
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//
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//---------------------------------------------------------------
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SCODE CDocFileIterator::Init(CStgHandle *ph)
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{
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SCODE sc;
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olDebugOut((DEB_ITRACE, "In CDocFileIterator::Init(%p)\n", ph));
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if (FAILED(sc = ph->GetIterator(&_pi)))
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_pi = NULL;
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olDebugOut((DEB_ITRACE, "Out CDocFileIterator::Init\n"));
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return sc;
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}
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//+--------------------------------------------------------------
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//
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// Member: CDocFileIterator::~CDocFileIterator
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//
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// Synopsis: Destructor
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//
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//---------------------------------------------------------------
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CDocFileIterator::~CDocFileIterator(void)
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{
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olDebugOut((DEB_ITRACE, "In CDocFileIterator::~CDocFileIterator\n"));
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if (_pi)
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_pi->Release();
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olDebugOut((DEB_ITRACE, "Out CDocFileIterator::~CDocFileIterator\n"));
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}
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//+--------------------------------------------------------------
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//
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// Member: CDocFileIterator::GetNext
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//
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// Synopsis: Get the next entry
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//
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// Arguments: [pstatstg] - Buffer to return information in
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//
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// Returns: Appropriate status code
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//
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// Modifies: [pstatstg]
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//
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//---------------------------------------------------------------
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SCODE CDocFileIterator::GetNext(STATSTGW *pstatstg)
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{
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SCODE sc;
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olDebugOut((DEB_ITRACE, "In CDocFileIterator::GetNext(%p)\n", pstatstg));
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if (FAILED(sc = _pi->GetNext(pstatstg)))
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{
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#if DEVL == 1
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// Null the name to clean up some debug prints
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pstatstg->pwcsName = NULL;
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#endif
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}
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olDebugOut((DEB_ITRACE, "Out CDocFileIterator::GetNext => %ws, %ld\n",
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pstatstg->pwcsName, pstatstg->type));
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return sc;
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}
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//+--------------------------------------------------------------
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//
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// Member: CDocFileIterator::BufferGetNext, public
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//
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// Synopsis: Fast, fixed-space version of GetNext
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//
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// Arguments: [pib] - Buffer to fill in
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//
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// Returns: Appropriate status code
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//
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// Modifies: [pib]
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//
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//---------------------------------------------------------------
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SCODE CDocFileIterator::BufferGetNext(SIterBuffer *pib)
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{
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return _pi->BufferGetNext(pib);
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}
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//+--------------------------------------------------------------
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//
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// Member: CDocFileIterator::Release, public
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//
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// Synopsis: Releases resources for an iterator
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//
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// Returns: Appropriate status code
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//
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//---------------------------------------------------------------
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void CDocFileIterator::Release(void)
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{
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olDebugOut((DEB_ITRACE, "In CDocFileIterator::Release()\n"));
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delete this;
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olDebugOut((DEB_ITRACE, "Out CDocFileIterator::Release\n"));
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}
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