90 lines
2.1 KiB
C++
90 lines
2.1 KiB
C++
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1997-1998.
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//
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// File: usnlist.hxx
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//
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// Contents: List of usn flush info
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//
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// History: 07-May-97 SitaramR Created
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//
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//----------------------------------------------------------------------------
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#pragma once
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#include <usninfo.hxx>
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//+-------------------------------------------------------------------------
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//
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// Class: CUsnFlushInfoList
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//
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// Purpose: List of usn flush info
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//
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// History: 07-May-97 SitaramR Created
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//
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//--------------------------------------------------------------------------
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class CUsnFlushInfoList
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{
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public:
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CUsnFlushInfoList() {}
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void SetUsns( ULONG cEntries,
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USN_FLUSH_INFO const * const * ppUsnEntries )
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{
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//
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// Make a copy of usn entries
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//
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_aUsnFlushInfo.Clear();
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for ( unsigned i=0; i<cEntries; i++ )
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{
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XPtr<CUsnFlushInfo> xInfo( new CUsnFlushInfo( ppUsnEntries[i]->volumeId,
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ppUsnEntries[i]->usnHighest ) );
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_aUsnFlushInfo.Add( xInfo.GetPointer(), i );
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xInfo.Acquire();
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}
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}
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USN GetUsn( VOLUMEID volId )
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{
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//
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// Search for volumeId in the list of usn entries
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//
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for ( unsigned i=0; i<_aUsnFlushInfo.Count(); i++ )
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{
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if ( _aUsnFlushInfo[i]->VolumeId() == volId )
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return _aUsnFlushInfo[i]->UsnHighest();
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}
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//
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// Not found, so return an usn of 0
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//
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return 0;
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}
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ULONG Count()
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{
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return _aUsnFlushInfo.Count();
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}
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CUsnFlushInfo *Get( unsigned index )
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{
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return _aUsnFlushInfo.Get( index );
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}
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void Add( CUsnFlushInfo * pInfo, unsigned i )
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{
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_aUsnFlushInfo.Add( pInfo, i );
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}
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private:
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CCountedDynArray<CUsnFlushInfo> _aUsnFlushInfo;
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};
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