93 lines
2.4 KiB
C++
93 lines
2.4 KiB
C++
//+---------------------------------------------------------------------------
|
|
//
|
|
// Microsoft Windows
|
|
// Copyright (C) Microsoft Corporation, 1993 - 1998
|
|
//
|
|
// File: pdir.hxx
|
|
//
|
|
// Contents: persistent directory
|
|
//
|
|
// Classes: PDirectory
|
|
//
|
|
// History: 08-Jul-93 BartoszM Created.
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
#pragma once
|
|
|
|
struct BitOffset;
|
|
class CKeyBuf;
|
|
class CiStorage;
|
|
class CKey;
|
|
class CMmStreamBuf;
|
|
class PStorage;
|
|
class PSaveProgressTracker;
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Class: PDirectoryIter
|
|
//
|
|
// Purpose: Directory leaf iterator
|
|
//
|
|
// History: 17-Feb-94 KyleP Created
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
class PDirectoryIter
|
|
{
|
|
public:
|
|
|
|
virtual ~PDirectoryIter() {};
|
|
|
|
virtual CKeyBuf const * GetKey() = 0;
|
|
virtual BitOffset const * GetOffset() = 0;
|
|
virtual unsigned GetIndex() = 0;
|
|
|
|
virtual BOOL Next() = 0;
|
|
};
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Class: PDirectory
|
|
//
|
|
// Purpose: Directory (B-Tree)
|
|
//
|
|
// History: 17-Feb-94 KyleP Added header
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
class PDirectory
|
|
{
|
|
public:
|
|
PDirectory() {}
|
|
|
|
virtual ~PDirectory () {}
|
|
|
|
virtual void Add ( BitOffset& posKey, const CKeyBuf& key ) = 0;
|
|
|
|
virtual void Close() = 0;
|
|
|
|
virtual void Seek ( const CKeyBuf& key, CKeyBuf *pKeyInit, BitOffset& off )=0;
|
|
virtual void Seek ( const CKey& key, CKeyBuf *pKeyInit, BitOffset& off )=0;
|
|
|
|
virtual void SeekNext ( const CKeyBuf& key, CKeyBuf *pKeyInit, BitOffset& off ) = 0;
|
|
|
|
virtual unsigned CountLeaf() const = 0;
|
|
|
|
virtual void LokBuildDir(const CKeyBuf & maxKey) = 0;
|
|
virtual void LokFlushDir(const CKeyBuf & maxKey) = 0;
|
|
|
|
virtual void DeleteKeysAfter( const CKeyBuf & key ) = 0;
|
|
|
|
virtual void MakeBackupCopy( PStorage & dstStorage,
|
|
PSaveProgressTracker & progressTracker ) = 0;
|
|
|
|
#if (CIDBG == 1)
|
|
virtual CKeyBuf const & GetLastKey() = 0;
|
|
virtual BitOffset const & GetBitOffsetLastAdded() = 0;
|
|
virtual void SetBitOffsetLastAdded( ULONG page, ULONG offset ) = 0;
|
|
#endif
|
|
|
|
};
|
|
|