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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* 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
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#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
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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