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Diffstat (limited to 'sot/source/sdstor/stgdir.hxx')
| -rw-r--r-- | sot/source/sdstor/stgdir.hxx | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/sot/source/sdstor/stgdir.hxx b/sot/source/sdstor/stgdir.hxx new file mode 100644 index 000000000..3605c27ac --- /dev/null +++ b/sot/source/sdstor/stgdir.hxx @@ -0,0 +1,111 @@ +/* -*- 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: */ |