166 lines
4.7 KiB
C++
166 lines
4.7 KiB
C++
//+--------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1992.
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//
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// File: tlsets.cxx
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//
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// Contents: Transaction level set manager implementation
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//
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// History: 20-Jan-1992 PhilipL 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: CTSSet::~CTSSet, public
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//
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// Synopsis: destructor
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//
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// History: 22-Jan-1992 Philipl Created
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// 08-Apr-1992 DrewB Rewritten
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//
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//---------------------------------------------------------------
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#ifdef CODESEGMENTS
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#pragma code_seg(SEG_CTSSet_1CTSSet) // inline?
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#endif
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CTSSet::~CTSSet()
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{
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// Last element should be TS, but we can't check this
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// so allow one last element to exist, assuming it will
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// be the TS
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olAssert(_ptsmHead == NULL ||
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_ptsmHead->GetNext() == NULL);
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}
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//+--------------------------------------------------------------
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//
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// Member: CTSSet::FindName, public
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//
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// Synopsis: Return the element in the TS with the given name
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//
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// Arguments: [pdfn] - name
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// [ulLevel] - level
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//
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// Returns: Matching element or NULL
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//
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// History: 22-Jan-1992 Philipl Created
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// 08-Apr-1992 DrewB Rewritten
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// 28-Oct-1992 AlexT Convert to name
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//
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//---------------------------------------------------------------
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#ifdef CODESEGMENTS
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#pragma code_seg(SEG_CTSSet_FindName)
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#endif
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PTSetMember *CTSSet::FindName(CDfName const *pdfn, DFLUID dlTree)
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{
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PTSetMember *ptsm;
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olDebugOut((DEB_ITRACE, "In CTSSet::FindName(%p)\n", pdfn));
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olAssert(pdfn != NULL && aMsg("Can't search for Null name"));
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for (ptsm = BP_TO_P(PTSetMember *, _ptsmHead);
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ptsm; ptsm = ptsm->GetNext())
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{
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if (ptsm->GetDfName()->IsEqual(pdfn) && ptsm->GetTree() == dlTree)
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break;
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}
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olDebugOut((DEB_ITRACE, "Out CTSSet::FindName => %p\n", ptsm));
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return ptsm;
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}
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//+--------------------------------------------------------------
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//
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// Member: CTSSet::AddMember, public
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//
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// Synopsis: Add the member to the correct position in the list
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//
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// Arguments: [ptsmAdd] - Element to add
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//
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// History: 22-Jan-1992 Philipl Created
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// 08-Apr-1992 DrewB Rewritten
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//
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// Notes: This function inserts the provided element into the
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// list in its correct sorted position.
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//
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//---------------------------------------------------------------
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#ifdef CODESEGMENTS
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#pragma code_seg(SEG_CTSSet_AddMember)
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#endif
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void CTSSet::AddMember(PTSetMember *ptsmAdd)
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{
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PTSetMember *ptsm, *ptsmPrev;
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olDebugOut((DEB_ITRACE, "In CTSSet::AddMember(%p)\n", ptsmAdd));
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for (ptsm = BP_TO_P(PTSetMember *, _ptsmHead), ptsmPrev = NULL;
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ptsm;
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ptsmPrev = ptsm, ptsm = ptsm->GetNext())
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if (ptsm->GetLevel() >= ptsmAdd->GetLevel())
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break;
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if (ptsm == NULL)
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if (ptsmPrev == NULL)
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// Empty list
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_ptsmHead = P_TO_BP(CBasedTSetMemberPtr, ptsmAdd);
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else
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{
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// Nothing with a higher level, add to end of list
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ptsmPrev->SetNext(ptsmAdd);
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ptsmAdd->SetPrev(ptsmPrev);
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}
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else
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{
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// Add before element with higher level
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ptsmAdd->SetNext(ptsm);
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ptsmAdd->SetPrev(ptsm->GetPrev());
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if (ptsm->GetPrev())
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ptsm->GetPrev()->SetNext(ptsmAdd);
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else
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_ptsmHead = P_TO_BP(CBasedTSetMemberPtr, ptsmAdd);
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ptsm->SetPrev(ptsmAdd);
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}
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olDebugOut((DEB_ITRACE, "Out CTSSet::AddMember\n"));
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}
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//+--------------------------------------------------------------
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//
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// Member: CTSSet::RemoveMember, public
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//
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// Synopsis: Removes the member from the list
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//
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// Arguments: [ptsmRemove] - Element to remove
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//
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// History: 22-Jan-1992 Philipl Created
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// 08-Apr-1992 DrewB Rewritten
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//
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//---------------------------------------------------------------
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#ifdef CODESEGMENTS
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#pragma code_seg(SEG_CTSSet_RemoveMember)
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#endif
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void CTSSet::RemoveMember(PTSetMember *ptsmRemove)
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{
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olDebugOut((DEB_ITRACE, "In CTSSet::RemoveMember(%p)\n", ptsmRemove));
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PTSetMember *ptsmNext = ptsmRemove->GetNext();
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if (ptsmRemove->GetPrev())
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ptsmRemove->GetPrev()->SetNext(ptsmNext);
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else
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_ptsmHead = P_TO_BP(CBasedTSetMemberPtr, ptsmNext);
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if (ptsmRemove->GetNext())
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ptsmRemove->GetNext()->SetPrev(ptsmRemove->GetPrev());
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ptsmRemove->SetNext(NULL);
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ptsmRemove->SetPrev(NULL);
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olDebugOut((DEB_ITRACE, "Out CTSSet::RemoveMember\n"));
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}
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