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/*************************************************************************
*
* $RCSfile: stgdir.hxx,v $
*
* $Revision: 1.1.1.1 $
*
* last change: $Author: hr $ $Date: 2000-09-18 16:56:51 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#ifndef _STGDIR_HXX
#define _STGDIR_HXX
#ifndef _STGAVL_HXX
#include "stgavl.hxx"
#endif
#ifndef _STGELEM_HXX
#include "stgelem.hxx"
#endif
#ifndef _STGSTRMS_HXX
#include "stgstrms.hxx"
#endif
class StgIo;
class StgEntry;
class StgDirEntry;
class StgDirStrm;
class StgDirEntry : public StgAvlNode
{
friend class StgIterator;
friend class StgDirStrm;
StgEntry aSave; // original dir entry
StgDirEntry* pUp; // parent directory
StgDirEntry* pDown; // child directory for storages
StgDirEntry** ppRoot; // root of TOC tree
StgStrm* pStgStrm; // storage stream
StgTmpStrm* pTmpStrm; // temporary stream
StgTmpStrm* pCurStrm; // temp stream after commit
INT32 nEntry; // entry # in TOC stream (temp)
INT32 nPos; // current position
BOOL bDirty; // dirty directory entry
BOOL bCreated; // newly created entry
BOOL bRemoved; // removed per Invalidate()
BOOL bRenamed; // renamed
void InitMembers(); // ctor helper
virtual short Compare( const StgAvlNode* ) const;
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 aEntry; // entry data
INT32 nRefCnt; // reference count
StreamMode nMode; // open mode
BOOL bTemp; // TRUE: delete on dir flush
BOOL bDirect; // TRUE: direct mode
BOOL bZombie; // TRUE: Removed From StgIo
BOOL bInvalid; // TRUE: invalid entry
StgDirEntry( const void*, BOOL * pbOk );
StgDirEntry( const StgEntry& );
~StgDirEntry();
void Invalidate( BOOL=FALSE ); // invalidate all open entries
void Enum( INT32& ); // enumerate entries for iteration
void DelTemp( BOOL ); // delete temporary entries
BOOL Store( StgDirStrm& ); // save entry into dir strm
BOOL IsContained( StgDirEntry* ); // check if subentry
void SetDirty() { bDirty = TRUE; }
BOOL IsDirty();
void ClearDirty();
BOOL Commit();
BOOL Revert();
void OpenStream( StgIo&, BOOL=FALSE ); // set up an approbiate stream
void Close();
INT32 GetSize();
BOOL SetSize( INT32 );
INT32 Seek( INT32 );
INT32 Tell() { return nPos; }
INT32 Read( void*, INT32 );
INT32 Write( const void*, INT32 );
void Copy( StgDirEntry& );
};
class StgDirStrm : public StgDataStrm
{
friend class StgIterator;
StgDirEntry* pRoot; // root of dir tree
short nEntries; // entries per page
void SetupEntry( INT32, StgDirEntry* );
public:
StgDirStrm( StgIo& );
~StgDirStrm();
virtual BOOL SetSize( INT32 ); // change the size
BOOL Store();
void* GetEntry( INT32 n, BOOL=FALSE );// get an entry
StgDirEntry* GetRoot() { return pRoot; }
StgDirEntry* Find( StgDirEntry&, const String& );
StgDirEntry* Create( StgDirEntry&, const String&, StgEntryType );
BOOL Remove( StgDirEntry&, const String& );
BOOL Rename( StgDirEntry&, const String&, const String& );
BOOL Move( StgDirEntry&, StgDirEntry&, const String& );
};
class StgIterator : public StgAvlIterator
{
public:
StgIterator( StgDirEntry& rStg ) : StgAvlIterator( rStg.pDown ) {}
StgDirEntry* First() { return (StgDirEntry*) StgAvlIterator::First(); }
StgDirEntry* Next() { return (StgDirEntry*) StgAvlIterator::Next(); }
StgDirEntry* Last() { return (StgDirEntry*) StgAvlIterator::Last(); }
StgDirEntry* Prev() { return (StgDirEntry*) StgAvlIterator::Prev(); }
};
#endif
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