801 lines
21 KiB
C++
801 lines
21 KiB
C++
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 2000.
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//
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// File: notifmgr.hxx
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//
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// Contents: Classes to deal with registry and file system change notifications
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//
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// Classes: CCiNotify
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// CCiNotifyMgr
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//
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// History: 14-Jul-97 SitaramR Created from dlnotify.hxx
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//
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//----------------------------------------------------------------------------
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#pragma once
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#include <refcount.hxx>
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#include <regevent.hxx>
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#include <fatnot.hxx>
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#include <rcstrmhd.hxx>
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#include <cimbmgr.hxx>
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#include "scaninfo.hxx"
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#include "acinotfy.hxx"
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#include "usnlist.hxx"
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#include "usnmgr.hxx"
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class CiCat;
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class CCiNotifyMgr;
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class CClientDocStore;
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const LONGLONG sigCiNotify = 0x594649544F4E4943i64; // "CINOTIFY"
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//+---------------------------------------------------------------------------
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//
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// Class: CCiNotify
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//
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// Purpose: A single scope to watch for notifications.
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//
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// History: 1-17-96 srikants Created
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//
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//----------------------------------------------------------------------------
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class CCiNotify : public CGenericNotify
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{
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public:
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CCiNotify( CCiNotifyMgr & notifyMgr,
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WCHAR const * wcsScope,
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unsigned cwcScope,
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VOLUMEID volumeId,
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ULONGLONG const & VolumeCreationTime,
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ULONG VolumeSerialNumber,
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FILETIME const & ftLastScan,
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USN usn,
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ULONGLONG const & JournalId,
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BOOL fUsnTreeScan,
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BOOL fDeep = TRUE );
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~CCiNotify();
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BOOL IsMatch( const WCHAR * wcsPath, ULONG len ) const;
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# ifdef CIEXTMODE
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void CiExtDump(void *ciExtSelf);
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# endif
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BOOL IsValidSig()
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{
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return sigCiNotify == _sigCiNotify;
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}
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CCiNotifyMgr & GetNotifyMgr() { return _notifyMgr; }
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void LokRemove()
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{
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Unlink();
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Close();
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Abort();
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}
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void Abort();
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virtual void DoIt();
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virtual void ClearNotifyEnabled();
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void SetLastScanTime( FILETIME const & ft )
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{
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_ftLastScan = ft;
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}
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FILETIME const & GetLastScanTime() const { return _ftLastScan; }
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USN Usn() { return _usn; }
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void SetUsn( USN usn ) { _usn = usn; }
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ULONGLONG const & JournalId() const { return _JournalId; }
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void SetJournalId( ULONGLONG const & JournalId ) { _JournalId = JournalId; }
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VOLUMEID VolumeId() { return _volumeId; }
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ULONGLONG const & VolumeCreationTime() const { return _VolumeCreationTime; }
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ULONG VolumeSerialNumber() const { return _VolumeSerialNumber; }
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void SetVolumeInfo( ULONGLONG const & VolumeCreationTime, ULONG VolumeSerialNumber )
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{
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_VolumeCreationTime = VolumeCreationTime;
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_VolumeSerialNumber = VolumeSerialNumber;
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}
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BOOL FUsnTreeScan() { return _fUsnTreeScan; }
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void InitUsnTreeScan()
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{
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_fUsnTreeScan = TRUE;
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_usn = 0;
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}
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void SetUsnTreeScanComplete( USN usnMax )
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{
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// bogus assert: Win4Assert( _fUsnTreeScan );
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_fUsnTreeScan = FALSE;
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_usn = usnMax;
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}
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private:
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const LONGLONG _sigCiNotify; // signature for debugging
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ULONGLONG _VolumeCreationTime;
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union
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{
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FILETIME _ftLastScan; // Time of the last successful scan
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struct
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{
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ULONGLONG _JournalId; // Usn Journal Id
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USN _usn; // Max usn persisted for this volumeId
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};
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};
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ULONG _VolumeSerialNumber;
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CCiNotifyMgr & _notifyMgr; // CI Notification manager
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VOLUMEID _volumeId; // Volume id
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BOOL _fUsnTreeScan; // True if a usn tree traversal is going
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// on this scope
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};
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//+---------------------------------------------------------------------------
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//
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// Class: CVRootNotify
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//
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// Purpose: Notification on IIS VRoot changes
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//
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// History: 1-20-96 KyleP Created
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//
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//----------------------------------------------------------------------------
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class CVRootNotify : public CMetaDataVPathChangeCallBack
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{
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public:
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CVRootNotify( CiCat & cat,
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CiVRootTypeEnum eType,
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ULONG Instance,
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CCiNotifyMgr & notifyMgr );
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~CVRootNotify() { DisableNotification(); }
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SCODE CallBack( BOOL fCancel );
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void DisableNotification();
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private:
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CiVRootTypeEnum _type;
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CiCat & _cat;
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CCiNotifyMgr & _notifyMgr;
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CMetaDataMgr _mdMgr;
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};
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//+---------------------------------------------------------------------------
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//
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// Class: CRegistryScopesNotify
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//
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// Purpose: Notification on Scopes registry changes
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//
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// History: 10-16-96 dlee Created
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//
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//----------------------------------------------------------------------------
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class CRegistryScopesNotify : public CRegNotify
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{
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public:
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CRegistryScopesNotify( CiCat & cat, CCiNotifyMgr & notifyMgr );
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~CRegistryScopesNotify();
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void DoIt();
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private:
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CiCat & _cat;
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CCiNotifyMgr & _notifyMgr;
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};
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//+---------------------------------------------------------------------------
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//
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// Class: CCiRegistryNotify
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//
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// Purpose: A notification class for tracking ContentIndex registry
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// changes.
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//
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// History: 12-12-96 srikants Created
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//
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//----------------------------------------------------------------------------
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class CCiRegistryNotify : public CRegNotify
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{
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public:
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CCiRegistryNotify( CiCat & cat, CCiNotifyMgr & notifyMgr );
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~CCiRegistryNotify();
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void DoIt();
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private:
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CiCat & _cat;
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CCiNotifyMgr & _notifyMgr;
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};
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typedef class TDoubleList<CCiNotify> CCiNotifyList;
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typedef class TFwdListIter<CCiNotify, CCiNotifyList> CFwdCiNotifyIter;
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//+---------------------------------------------------------------------------
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//
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// Class: CScopeInfo
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//
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// Purpose: Class that holds a scope and the last scan time.
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//
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// History: 4-19-96 srikants Created
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//
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//----------------------------------------------------------------------------
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class CScopeInfo
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{
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public:
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CScopeInfo( XArray<WCHAR> & xPath,
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ULONGLONG const & VolumeCreationTime,
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ULONG VolumeSerialNumber,
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FILETIME const & ftLastScan )
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: _volumeId(CI_VOLID_USN_NOT_ENABLED),
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_VolumeCreationTime( VolumeCreationTime ),
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_VolumeSerialNumber( VolumeSerialNumber ),
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_ftLastScan( ftLastScan ),
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_fUsnTreeScan(FALSE)
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{
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_pwszScope = xPath.Acquire();
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_scanType = eNoScan;
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}
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CScopeInfo( XArray<WCHAR> & xPath,
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ULONGLONG const & VolumeCreationTime,
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ULONG VolumeSerialNumber,
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VOLUMEID volumeId,
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USN usn,
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ULONGLONG const & JournalId,
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BOOL fScan )
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: _volumeId(volumeId),
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_VolumeCreationTime( VolumeCreationTime ),
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_VolumeSerialNumber( VolumeSerialNumber ),
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_fUsnTreeScan( fScan ),
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_JournalId( JournalId ),
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_usn( usn )
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{
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_pwszScope = xPath.Acquire();
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_scanType = eNoScan;
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}
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CScopeInfo( WCHAR const * pwszPath,
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ULONGLONG const & VolumeCreationTime,
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ULONG VolumeSerialNumber,
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FILETIME const & ftLastScan )
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: _volumeId(CI_VOLID_USN_NOT_ENABLED),
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_VolumeCreationTime( VolumeCreationTime ),
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_VolumeSerialNumber( VolumeSerialNumber ),
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_ftLastScan( ftLastScan ),
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_fUsnTreeScan( FALSE )
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{
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Win4Assert( 0 != pwszPath );
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ULONG len = wcslen( pwszPath );
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_pwszScope = new WCHAR [len+1];
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RtlCopyMemory( _pwszScope, pwszPath, (len+1) * sizeof(WCHAR) );
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_scanType = eNoScan;
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}
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CScopeInfo( WCHAR const * pwszPath,
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ULONGLONG const & VolumeCreationTime,
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ULONG VolumeSerialNumber,
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VOLUMEID volumeId,
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USN usn,
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ULONGLONG const & JournalId,
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BOOL fScan )
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: _volumeId(volumeId),
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_VolumeCreationTime( VolumeCreationTime ),
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_VolumeSerialNumber( VolumeSerialNumber ),
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_fUsnTreeScan( fScan ),
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_JournalId( JournalId ),
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_usn( usn )
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{
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Win4Assert( 0 != pwszPath );
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ULONG len = wcslen( pwszPath );
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_pwszScope = new WCHAR [len+1];
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RtlCopyMemory( _pwszScope, pwszPath, (len+1) * sizeof(WCHAR) );
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_scanType = eNoScan;
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}
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~CScopeInfo()
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{
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delete [] _pwszScope;
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}
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WCHAR const * GetPath() const
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{
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return _pwszScope;
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}
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WCHAR * AcquirePath()
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{
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WCHAR * pwszTemp = _pwszScope;
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_pwszScope = 0;
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return pwszTemp;
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}
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void Invalidate()
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{
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delete [] _pwszScope;
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_pwszScope = 0;
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}
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BOOL IsValid() const { return 0 != _pwszScope; }
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FILETIME const & GetLastScanTime() const { return _ftLastScan; }
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void SetLastScanTime( FILETIME const & ft )
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{
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_ftLastScan = ft;
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}
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VOLUMEID VolumeId() const { return _volumeId; }
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USN Usn() const { return _usn; }
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void SetUsn( USN usn ) { _usn = usn; }
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ULONGLONG const & JournalId() const { return _JournalId; }
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void SetJournalId( ULONGLONG const & JournalId ) { _JournalId = JournalId; }
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ULONGLONG const & VolumeCreationTime() const { return _VolumeCreationTime; }
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ULONG VolumeSerialNumber() const { return _VolumeSerialNumber; }
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void SetVolumeInfo( ULONGLONG const & VolumeCreationTime, ULONG VolumeSerialNumber )
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{
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_VolumeCreationTime = VolumeCreationTime;
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_VolumeSerialNumber = VolumeSerialNumber;
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}
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BOOL IsScanNeeded() const { return eNoScan != _scanType; }
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BOOL IsFullScan() const { return eFullScan == _scanType; }
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BOOL IsIncrScan() const { return eIncrScan == _scanType; }
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void ClearScanNeeded() { _scanType = eNoScan; }
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void SetScanNeeded( BOOL fFull )
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{
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if ( fFull )
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{
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_scanType = eFullScan;
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}
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else if ( eNoScan == _scanType )
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{
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_scanType = eIncrScan;
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}
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}
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BOOL FUsnTreeScan() const { return _fUsnTreeScan; }
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void InitUsnTreeScan()
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{
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_fUsnTreeScan = TRUE;
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_usn = 0;
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}
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void SetUsnTreeScanComplete( USN usnMax )
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{
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Win4Assert( _fUsnTreeScan );
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Win4Assert( _usn == 0 );
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_fUsnTreeScan = FALSE;
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_usn = usnMax;
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}
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void ResetForScans()
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{
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_volumeId = CI_VOLID_USN_NOT_ENABLED;
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RtlZeroMemory( &_ftLastScan, sizeof(_ftLastScan) );
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_scanType = eFullScan;
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}
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void ResetForUsns( VOLUMEID volId, USN const & usnStart = 0 )
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{
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Win4Assert( volId != CI_VOLID_USN_NOT_ENABLED );
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_volumeId = volId;
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_usn = usnStart;
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_fUsnTreeScan = TRUE;
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}
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private:
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CScopeInfo( CScopeInfo const & src ) { Win4Assert( !"Don't call me!" ); }
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enum EScanType
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{
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eNoScan,
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eIncrScan,
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eFullScan
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};
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ULONGLONG _VolumeCreationTime;
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union
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{
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struct
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{
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ULONGLONG _JournalId;
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USN _usn;
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};
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FILETIME _ftLastScan;
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};
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ULONG _VolumeSerialNumber;
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WCHAR * _pwszScope;
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VOLUMEID _volumeId;
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BOOL _fUsnTreeScan; // True if a usn tree traversal is going
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// on this scope
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EScanType _scanType;
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};
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DECL_DYNSTACK( CScopeInfoStack, CScopeInfo );
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//+---------------------------------------------------------------------------
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//
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// Class: CCiNotifyMgr
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//
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// Purpose: Manages multiple scope notifications for content index. A
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// single content index can have multiple scopes and each scope
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// needs separate notifications.
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//
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// History: 1-17-96 srikants Created
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//
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// Notes:
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//
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//----------------------------------------------------------------------------
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#if CIDBG==1
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const LONGLONG eForceNetScanInterval = 2 * 60 * 1000 * 10000; // 2 mins for testing
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#endif // CIDBG==1
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class CCiNotifyMgr
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{
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enum EEventType { eNone=0x0,
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eKillThread=0x1,
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eAddScopes=0x2,
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eWatchIISVRoots=0x4,
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eWatchRegistryScopes=0x8,
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eWatchCiRegistry=0x10,
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eUnWatchW3VRoots=0x20,
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eUnWatchNNTPVRoots=0x40,
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eUnWatchIMAPVRoots=0x80 };
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friend class CCiNotifyIter;
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public:
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CCiNotifyMgr( CiCat & cicat, CCiScanMgr & scanMgr );
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~CCiNotifyMgr( );
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void Resume() { _thrNotify.Resume(); }
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void AddPath( CScopeInfo const & scopeInfo, BOOL & fSubScopesRemoved );
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BOOL RemoveScope( const WCHAR * wcsPath );
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BOOL IsInScope( WCHAR const * pwcsRoot );
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CMutexSem & GetMutex() { return _mutex; }
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void AddRef()
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{
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_refCount.AddRef();
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}
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void Release()
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{
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_refCount.Release();
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}
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void ProcessChanges( XPtr<CCiAsyncProcessNotify> & xWorker );
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void ProcessChanges( BYTE const * pbChanges, WCHAR const * pwcsRoot );
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CCiAsyncProcessNotify * QueryAsyncWorkItem( BYTE const * pbChanges,
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ULONG cbChanges,
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WCHAR const * pwcsRoot );
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void SetupScan( WCHAR const * pwcsRoot );
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unsigned GetUpdateCount()
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{
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CLock lock(_mutex);
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return _nUpdates;
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}
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void IncrementUpdateCount( ULONG nUpdates )
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{
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CLock lock(_mutex);
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_nUpdates += nUpdates;
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}
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void ResetUpdateCount()
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{
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CLock lock(_mutex);
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_nUpdates = 0;
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}
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void InitiateShutdown();
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void WaitForShutdown();
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void CancelIISVRootNotify( CiVRootTypeEnum eType );
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void TrackIISVRoots( BOOL fTrackW3Svc, ULONG W3SvcInstance,
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BOOL fTrackNNTPSvc, ULONG NNTPSvcInstance,
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BOOL fTrackIMAPSvc, ULONG IMAPSvcInstance );
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void TrackScopesInRegistry();
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void TrackCiRegistry();
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BOOL GetLastScanTime( WCHAR const * pwcsRoot, FILETIME & ft );
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void UpdateLastScanTimes( FILETIME const & ft, CUsnFlushInfoList & usnFlushInfoList );
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void ForceNetPathScansIf();
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CiCat & GetCatalog() { return _cicat; }
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BOOL IsRunning() const { return !_fAbort; }
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private:
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// methods to deal with notifications.
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static DWORD WINAPI NotifyThread( void * self );
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void _DoNotifications();
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void _KillThread();
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void _LokTellThreadToAddScope();
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void _LokAddScopesNoThrow();
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void LokWatchIISVServerNoThrow();
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void LokUnWatchIISVServerNoThrow( CVRootNotify * pNotify );
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void LokWatchRegistryScopesNoThrow();
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void LokWatchCiRegistryNoThrow();
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void _LokIncrementUpdateCount()
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{
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_nUpdates++;
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}
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void _LokForceScanNetPaths();
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CiCat & _cicat;
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CCiScanMgr & _scanMgr;
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CMutexSem _mutex; // Serialize access to the data.
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CCiNotifyList _list; // List of scopes being watched for
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// notifications.
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CRefCount _refCount;
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unsigned _nUpdates; // Count of updates since the last time
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// scantime is written.
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BOOL _fAbort; // Flag set to TRUE if should abort
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LONGLONG _ftLastNetPathScan;
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|
// Time of the last force scan on
|
|
// network drives with no notifications
|
|
//
|
|
// Notification thread management. System executes the APC in the context
|
|
// of the thread that makes the notification request.
|
|
//
|
|
ULONG _evtType;
|
|
CEventSem _evt;
|
|
CThread _thrNotify;
|
|
CScopeInfoStack _stkScopes;
|
|
|
|
//
|
|
// For processing changes to IIS VRoots
|
|
//
|
|
|
|
XPtr<CVRootNotify> _xW3SvcVRootNotify;
|
|
XPtr<CVRootNotify> _xNNTPSvcVRootNotify;
|
|
XPtr<CVRootNotify> _xIMAPSvcVRootNotify;
|
|
|
|
BOOL _fTrackW3Svc;
|
|
BOOL _fTrackNNTPSvc;
|
|
BOOL _fTrackIMAPSvc;
|
|
ULONG _W3SvcInstance;
|
|
ULONG _NNTPSvcInstance;
|
|
ULONG _IMAPSvcInstance;
|
|
|
|
BOOL _fIISAdminAlive;
|
|
|
|
CRegistryScopesNotify * _pRegistryScopesNotify;
|
|
|
|
CCiRegistryNotify * _pCiRegistryNotify;
|
|
};
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Class: CCiNotifyIter
|
|
//
|
|
// Purpose: An iterator to give successive scopes that are being watched
|
|
// for notifications.
|
|
//
|
|
// History: 1-25-96 srikants Created
|
|
//
|
|
// Notes:
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
class CCiNotifyIter
|
|
{
|
|
public:
|
|
|
|
CCiNotifyIter( CCiNotifyMgr & notifyMgr ) :
|
|
_notifyMgr(notifyMgr),
|
|
_lock(notifyMgr.GetMutex()),
|
|
_iNotAdded(0),
|
|
_stack(notifyMgr._stkScopes),
|
|
_list(notifyMgr._list),
|
|
_iter(_list)
|
|
{
|
|
_UpdateAtEnd();
|
|
}
|
|
|
|
|
|
BOOL AtEnd() const { return _fAtEnd; }
|
|
|
|
WCHAR const * Get()
|
|
{
|
|
Win4Assert( !AtEnd() );
|
|
|
|
if ( _iNotAdded < _stack.Count() )
|
|
return _stack.Get(_iNotAdded)->GetPath();
|
|
else
|
|
return _iter->GetScope();
|
|
}
|
|
|
|
void GetLastScanTime( FILETIME & ft )
|
|
{
|
|
if ( _iNotAdded < _stack.Count() )
|
|
RtlZeroMemory( &ft, sizeof(FILETIME) );
|
|
else
|
|
ft = _iter->GetLastScanTime();
|
|
}
|
|
|
|
VOLUMEID VolumeId()
|
|
{
|
|
Win4Assert( !AtEnd() );
|
|
|
|
if ( _iNotAdded < _stack.Count() )
|
|
return _stack.Get(_iNotAdded)->VolumeId();
|
|
else
|
|
return _iter->VolumeId();
|
|
}
|
|
|
|
ULONGLONG const & VolumeCreationTime()
|
|
{
|
|
Win4Assert( !AtEnd() );
|
|
|
|
if ( _iNotAdded < _stack.Count() )
|
|
return _stack.Get(_iNotAdded)->VolumeCreationTime();
|
|
else
|
|
return _iter->VolumeCreationTime();
|
|
}
|
|
|
|
ULONG VolumeSerialNumber()
|
|
{
|
|
Win4Assert( !AtEnd() );
|
|
|
|
if ( _iNotAdded < _stack.Count() )
|
|
return _stack.Get(_iNotAdded)->VolumeSerialNumber();
|
|
else
|
|
return _iter->VolumeSerialNumber();
|
|
}
|
|
|
|
BOOL IsDownlevelVolume()
|
|
{
|
|
Win4Assert( !AtEnd() );
|
|
|
|
if ( _iNotAdded < _stack.Count() )
|
|
return ( CI_VOLID_USN_NOT_ENABLED == _stack.Get(_iNotAdded)->VolumeId() );
|
|
else
|
|
return ( CI_VOLID_USN_NOT_ENABLED == _iter->VolumeId() );
|
|
}
|
|
|
|
USN Usn()
|
|
{
|
|
Win4Assert( !AtEnd() );
|
|
|
|
if ( _iNotAdded < _stack.Count() )
|
|
return _stack.Get(_iNotAdded)->Usn();
|
|
else
|
|
return _iter->Usn();
|
|
}
|
|
|
|
ULONGLONG const & JournalId()
|
|
{
|
|
Win4Assert( !AtEnd() );
|
|
|
|
if ( _iNotAdded < _stack.Count() )
|
|
return _stack.Get(_iNotAdded)->JournalId();
|
|
else
|
|
return _iter->JournalId();
|
|
}
|
|
|
|
BOOL FUsnTreeScan()
|
|
{
|
|
Win4Assert( !AtEnd() );
|
|
|
|
if ( _iNotAdded < _stack.Count() )
|
|
return _stack.Get(_iNotAdded)->FUsnTreeScan();
|
|
else
|
|
return _iter->FUsnTreeScan();
|
|
}
|
|
|
|
void InitUsnTreeScan()
|
|
{
|
|
Win4Assert( !AtEnd() );
|
|
|
|
if ( _iNotAdded < _stack.Count() )
|
|
_stack.Get(_iNotAdded)->InitUsnTreeScan();
|
|
else
|
|
_iter->InitUsnTreeScan();
|
|
}
|
|
|
|
void SetTreeScanComplete();
|
|
|
|
void SetUsnTreeScanComplete( USN usnMax );
|
|
|
|
void Advance()
|
|
{
|
|
Win4Assert( !AtEnd() );
|
|
|
|
if ( _iNotAdded < _stack.Count() )
|
|
_iNotAdded++;
|
|
else
|
|
_list.Advance(_iter);
|
|
|
|
_UpdateAtEnd();
|
|
}
|
|
|
|
private:
|
|
|
|
CCiNotifyMgr & _notifyMgr;
|
|
CLock _lock;
|
|
|
|
unsigned _iNotAdded;
|
|
BOOL _fAtEnd;
|
|
CScopeInfoStack & _stack;
|
|
CCiNotifyList & _list;
|
|
CFwdCiNotifyIter _iter;
|
|
|
|
void _UpdateAtEnd()
|
|
{
|
|
Win4Assert( _iNotAdded <= _stack.Count() );
|
|
_fAtEnd = _iNotAdded == _stack.Count() && _list.AtEnd(_iter);
|
|
}
|
|
|
|
};
|
|
|
|
|
|
BOOL AreIdenticalPaths( WCHAR const * pwcsPath1, WCHAR const * pwcsPath2 );
|
|
|