251 lines
6.1 KiB
C++
251 lines
6.1 KiB
C++
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//+---------------------------------------------------------------------------
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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: vectfunc.hxx
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//
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// Contents: CPagedVector inline functions
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//
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// Classes:
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//
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// Functions:
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//
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// History: 28-Oct-92 PhilipLa Created
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//
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//----------------------------------------------------------------------------
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#ifndef __VECTFUNC_HXX__
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#define __VECTFUNC_HXX__
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#define STG_S_FOUND MAKE_SCODE(SEVERITY_SUCCESS, FACILITY_STORAGE, 0x400)
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//+-------------------------------------------------------------------------
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//
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// Method: CPagedVector::ReleaseTable, public
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//
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// Synopsis: Release a table that is no longer needed.
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//
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// Arguments: [iTable] -- index into vector
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//
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// Returns: S_OK if call completed OK.
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//
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// History: 27-Oct-92 PhilipLa Created.
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//
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// Notes:
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//
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//--------------------------------------------------------------------------
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inline void CPagedVector::ReleaseTable(const FSINDEX iTable)
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{
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if ((_amp == NULL) || (_amp[iTable] == NULL))
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{
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_pmpt->ReleasePage(this, _sid, iTable);
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}
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else
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{
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_amp[iTable]->Release();
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}
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CPagedVector::GetBits, public
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//
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// Synopsis: Return CVectBits for a given table
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//
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// Arguments: [iTable] -- Index of table to get bits for
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//
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// Returns: Pointer to CVectBits associated with table
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//
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// History: 27-Oct-92 PhilipLa Created.
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//
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//--------------------------------------------------------------------------
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inline CVectBits * CPagedVector::GetBits(const ULONG iTable)
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{
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msfAssert(iTable < _ulSize);
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if (_avb == NULL)
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return NULL;
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else
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return (&_avb[iTable]);
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CPagedVector::ResetDirty, public
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//
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// Synopsis: Reset the dirty bit on the specified page
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//
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// Arguments: [iTable] -- Table to reset bit on
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//
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// History: 28-Oct-92 PhilipLa Created
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//
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// Notes: This function is always called on a page with an
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// open reference. Therefore, the page is
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// guaranteed to be in the page table, and that
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// FindPage call should never return an error.
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//
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//----------------------------------------------------------------------------
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inline void CPagedVector::ResetDirty(ULONG iTable)
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{
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SCODE sc;
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if (_amp == NULL)
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{
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CMSFPage *pmp;
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msfChk(_pmpt->FindPage(this, _sid, iTable, &pmp));
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msfAssert(sc == STG_S_FOUND);
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msfAssert(pmp->IsInUse() &&
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aMsg("Called ResetDirty on page not in use."));
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pmp->ResetDirty();
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}
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else
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{
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msfAssert(_amp != NULL);
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msfAssert(_amp[iTable] != NULL);
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_amp[iTable]->ResetDirty();
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}
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Err:
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return;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CPagedVector::SetSect, public
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//
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// Synopsis: Set the sector location of a page
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//
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// Arguments: [iTable] -- Table to set page for
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// [sect] -- Sector location of page
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//
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// History: 02-Nov-92 PhilipLa Created
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//
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// Notes: This function is always called on a page with an
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// open reference. Therefore, the page is
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// guaranteed to be in the page table, and that
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// FindPage call should never return an error.
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//
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//----------------------------------------------------------------------------
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inline void CPagedVector::SetSect(const ULONG iTable, const SECT sect)
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{
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SCODE sc;
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if (_amp == NULL)
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{
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CMSFPage *pmp;
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msfChk(_pmpt->FindPage(this, _sid, iTable, &pmp));
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msfAssert(sc == STG_S_FOUND);
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msfAssert(pmp->IsInUse() &&
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aMsg("Called SetSect on page not in use."));
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#ifdef SORTPAGETABLE
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_pmpt->SetSect(pmp, sect);
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#else
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pmp->SetSect(sect);
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#endif
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}
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else
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{
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msfAssert(_amp != NULL);
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msfAssert(_amp[iTable] != NULL);
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#ifdef SORTPAGETABLE
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_pmpt->SetSect(BP_TO_P(CMSFPage *, _amp[iTable]), sect);
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#else
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_amp[iTable]->SetSect(sect);
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#endif
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}
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Err:
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return;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CPagedVector::FreeTable, public
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//
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// Synopsis: Free a given table (NULL its pointer)
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//
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// Arguments: [iTable] -- Table to free
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//
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// History: 04-Nov-92 PhilipLa Created
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//
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//----------------------------------------------------------------------------
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inline void CPagedVector::FreeTable(ULONG iTable)
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{
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if ((_amp != NULL) && (_amp[iTable] != NULL))
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{
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msfAssert(_amp[iTable]->GetVector() == this);
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_amp[iTable] = NULL;
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}
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CPagedVector::SetParent, public
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//
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// Synopsis: Set the parent of this page table
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//
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// Arguments: [pms] -- Pointer to new parent
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//
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// History: 05-Nov-92 PhilipLa Created
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//
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//----------------------------------------------------------------------------
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inline void CPagedVector::SetParent(CMStream *pms)
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{
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_pmsParent = P_TO_BP(CBasedMStreamPtr, pms);
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CPagedVector::GetParent, public
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//
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// Synopsis: Return the parent MS pointer of a vector
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//
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// History: 05-Nov-92 PhilipLa Created
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//
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//----------------------------------------------------------------------------
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inline CMStream * CPagedVector::GetParent(void) const
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{
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return BP_TO_P(CMStream *, _pmsParent);
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CPagedVector::ResetBits, public
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//
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// Synopsis: Reset all the optimization bits in the vector
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//
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// History: 08-Feb-93 PhilipLa Created
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//
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//----------------------------------------------------------------------------
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void CPagedVector::ResetBits(void)
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{
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if (_avb != NULL)
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{
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for (ULONG i = 0; i < _ulSize; i++)
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{
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_avb[i].full = FALSE;
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_avb[i].firstfree = 0;
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}
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}
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}
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#endif // #ifndef __VECTFUNC_HXX__
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