mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
66 lines
2.0 KiB
66 lines
2.0 KiB
//+---------------------------------------------------------------------------
|
|
//
|
|
// Copyright (C) Microsoft Corporation, 1991 - 1998
|
|
//
|
|
// File: pershash.hxx
|
|
//
|
|
// Contents: Abstract class for persistent hash table
|
|
//
|
|
// History: 07-May-97 SitaramR Created from strings.hxx
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
#pragma once
|
|
|
|
#include <prpstmgr.hxx>
|
|
#include <dynstrm.hxx>
|
|
|
|
#include "chash.hxx"
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Class: CPersHash
|
|
//
|
|
// Purpose: Abstract class for persistent hash table
|
|
//
|
|
// History: 07-May-97 SitaramR Created
|
|
// 23-Feb-98 KitmanH Added a protected member,
|
|
// _fIsReadOnly
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
class CPersHash
|
|
{
|
|
public:
|
|
|
|
CPersHash( CPropStoreManager & PropStoreMgr, BOOL fAggressiveGrowth );
|
|
virtual ~CPersHash();
|
|
|
|
virtual BOOL FastInit ( CiStorage * pStorage, ULONG version, BOOL fIsFileIdMap );
|
|
virtual void LongInit ( ULONG version, BOOL fDirtyShutdown );
|
|
virtual void Empty();
|
|
virtual void LokFlush();
|
|
void Shutdown ();
|
|
|
|
protected:
|
|
|
|
void GrowHashTable();
|
|
void GrowToSize( unsigned cElements );
|
|
|
|
//
|
|
// Error recovery.
|
|
//
|
|
virtual BOOL ReInit( ULONG version );
|
|
virtual void HashAll() = 0;
|
|
|
|
CPropStoreManager & _PropStoreMgr;// Property store manager
|
|
CDynStream * _pStreamHash; // Persistent hash stream
|
|
CWidHashTable _hTable; // Map fileids to wids (using hash stream)
|
|
BOOL _fIsOpen; // If TRUE, successfully opened
|
|
BOOL _fAbort; // To abort long operations
|
|
BOOL _fFullInit; // Set to TRUE if fully initialized.
|
|
BOOL _fIsReadOnly; // TRUE if the catalog is for read only
|
|
};
|
|
|
|
|
|
|