/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
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*/
#ifndef INCLUDED_SOT_SOURCE_SDSTOR_STGDIR_HXX
#define INCLUDED_SOT_SOURCE_SDSTOR_STGDIR_HXX
#include "stgavl.hxx"
#include "stgelem.hxx"
#include "stgstrms.hxx"
class StgIo;
class StgDirStrm;
class BaseStorageStream;
class StgDirEntry :
public StgAvlNode
{
friend class StgIterator;
friend class StgDirStrm;
StgEntry m_aSave;
// original dir entry
StgDirEntry* m_pUp;
// parent directory
StgDirEntry* m_pDown;
// child directory for storages
StgStrm* m_pStgStrm;
// storage stream
StgTmpStrm* m_pTmpStrm;
// temporary stream
StgTmpStrm* m_pCurStrm;
// temp stream after commit
sal_Int32 m_nEntry;
// entry # in TOC stream (temp)
sal_Int32 m_nPos;
// current position
bool m_bDirty;
// dirty directory entry
bool m_bRemoved;
// removed per Invalidate()
void InitMembers();
// ctor helper
virtual sal_Int32 Compare(
const StgAvlNode* )
const override;
bool StoreStream( StgIo& );
// store the stream
bool StoreStreams( StgIo& );
// store all streams
void RevertAll();
// revert the whole tree
bool Strm2Tmp();
// copy stgstream to temp file
bool Tmp2Strm();
// copy temp file to stgstream
public:
StgEntry m_aEntry;
// entry data
sal_Int32 m_nRefCnt;
// reference count
StreamMode m_nMode;
// open mode
bool m_bTemp;
// true: delete on dir flush
bool m_bDirect;
// true: direct mode
bool m_bZombie;
// true: Removed From StgIo
bool m_bInvalid;
// true: invalid entry
StgDirEntry(
const void* pBuffer, sal_uInt32 nBufferLen,
sal_uInt64 nUnderlyingStreamSize,
bool * pbOk);
explicit StgDirEntry(
const StgEntry& );
virtual ~StgDirEntry() override;
void Invalidate(
bool );
// invalidate all open entries
void Enum( sal_Int32& );
// enumerate entries for iteration
void DelTemp(
bool );
// delete temporary entries
bool Store( StgDirStrm& );
// save entry into dir strm
void SetDirty() { m_bDirty =
true; }
bool IsDirty();
bool Commit();
void OpenStream( StgIo& );
// set up an appropriate stream
void Close();
sal_Int32 GetSize()
const;
bool SetSize( sal_Int32 );
sal_Int32 Seek( sal_Int32 );
sal_Int32 Read(
void*, sal_Int32 );
sal_Int32 Write(
const void*, sal_Int32 );
void Copy( BaseStorageStream& );
};
class StgDirStrm :
public StgDataStrm
{
friend class StgIterator;
StgDirEntry* m_pRoot;
// root of dir tree
void SetupEntry( sal_Int32, StgDirEntry* );
public:
explicit StgDirStrm( StgIo& );
virtual ~StgDirStrm() override;
virtual bool SetSize( sal_Int32 ) override;
// change the size
bool Store();
void* GetEntry( sal_Int32 n,
bool );
// get an entry
StgDirEntry* GetRoot() {
return m_pRoot; }
static StgDirEntry* Find( StgDirEntry&,
const OUString& );
StgDirEntry* Create( StgDirEntry&,
const OUString&, StgEntryType );
};
class StgIterator :
public StgAvlIterator
{
public:
explicit StgIterator( StgDirEntry& rStg ) : StgAvlIterator( rStg.m_pDown ) {}
StgDirEntry* First() {
return static_cast<StgDirEntry*>( StgAvlIterator::First() ); }
StgDirEntry* Next() {
return static_cast<StgDirEntry*>( StgAvlIterator::Next() ); }
};
#endif
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