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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: regimpl.hxx,v $
 * $Revision: 1.5 $
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org 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 version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

#ifndef _REGIMPL_HXX_
#define _REGIMPL_HXX_

#include 	<registry/registry.h>
#include	"regmap.hxx"
#include	<osl/mutex.hxx>
#include	<store/store.hxx>

#define REG_PAGESIZE 512

#define	REG_MODE_CREATE		store_AccessCreate
#define	REG_MODE_OPEN		store_AccessReadWrite 
#define	REG_MODE_OPENREAD	store_AccessReadOnly 

#define	KEY_MODE_CREATE		store_AccessCreate
#define	KEY_MODE_OPEN		store_AccessReadWrite 
#define	KEY_MODE_OPENREAD	store_AccessReadOnly 


#define	VALUE_MODE_CREATE	store_AccessCreate
#define	VALUE_MODE_OPEN		store_AccessReadWrite 
#define	VALUE_MODE_OPENREAD	store_AccessReadOnly 

#define	VALUE_PREFIX		"$VL_"
#define	VALUE_LINKTARGET	"$VL_LINK_TARGET"

// 5 Bytes = 1 (Byte fuer den Typ) + 4 (Bytes fuer die Groesse der Daten)
#define	VALUE_HEADERSIZE	5
#define	VALUE_TYPEOFFSET	1
#define	VALUE_HEADEROFFSET	5

#define REG_CREATE  	0x0004  // allow write accesses

#define REG_GUARD(mutex) \
    Guard< Mutex > aGuard( mutex );

using namespace rtl;
using namespace osl;
using namespace store;

enum RESOLVE
{
    // alle Links werden aufgeloest
    RESOLVE_FULL,
    // alles bis zum letzten TeilStueck wird aufgeloest
    RESOLVE_PART,
    // kein Link wird aufgeloest
    RESOLVE_NOTHING
};

class ORegManager;
class RegistryTypeReader;

class ORegistry
{
public:
    ORegistry();

    sal_uInt32	acquire()
        { return ++m_refCount; }

    sal_uInt32	release()
        { return --m_refCount; }

    RegError	initRegistry(const OUString& name, 
                             RegAccessMode accessMode);

    RegError	closeRegistry();

    RegError	destroyRegistry(const OUString& name);

    RegError	createKey(RegKeyHandle hKey, 
                          const OUString& keyName, 
                          RegKeyHandle* phNewKey);

    RegError	openKey(RegKeyHandle hKey, 
                        const OUString& keyName, 
                        RegKeyHandle* phOpenKey,
                        RESOLVE eResolve=RESOLVE_FULL);

    RegError	closeKey(RegKeyHandle hKey);

    RegError	deleteKey(RegKeyHandle hKey, const OUString& keyName);

    RegError	loadKey(RegKeyHandle hKey, 
                        const OUString& regFileName,
                        sal_Bool bWarings=sal_False, 
                        sal_Bool bReport=sal_False);

    RegError	saveKey(RegKeyHandle hKey, 
                        const OUString& regFileName,
                        sal_Bool bWarings=sal_False, 
                        sal_Bool bReport=sal_False);

    RegError	dumpRegistry(RegKeyHandle hKey) const;

    RegError 	createLink(RegKeyHandle hKey, 
                           const OUString& linkName, 
                           const OUString& linkTarget);

       RegError 	deleteLink(RegKeyHandle hKey, 
                           const OUString& linkName);

public:
    virtual	~ORegistry();

    sal_Bool			isKeyOpen(const OUString&	keyName) const;
    sal_Bool			isReadOnly() const
        { return m_readOnly; }

    sal_Bool			isOpen() const
        { return m_isOpen; }

    ORegKey* 	getRootKey();

    const OStoreFile&	getStoreFile()
        { return m_file; }

    const OUString& 	getName() const
        { return m_name; }

    RegError getResolvedKeyName(RegKeyHandle hKey,
                                 const OUString& keyName,
                                 OUString& resolvedName);

    friend class ORegKey;			
protected:
    RegError	eraseKey(ORegKey* pKey, 
                         const OUString& keyName,
                         RESOLVE eResolve=RESOLVE_FULL);

    RegError	deleteSubkeysAndValues(ORegKey* pKey,
                                       RESOLVE eResolve=RESOLVE_FULL);

    sal_uInt32		countSubKeys(ORegKey* pKey);

    RegError	loadAndSaveValue(ORegKey* pTargetKey, 
                                 ORegKey* pSourceKey, 
                                 const OUString& valueName, 
                                 sal_uInt32 nCut,
                                 sal_Bool bWarnings=sal_False,
                                 sal_Bool bReport=sal_False);

    RegError	checkBlop(OStoreStream& rValue,
                          const OUString& sTargetPath,
                          sal_uInt32 srcValueSize, 
                          sal_uInt8* pSrcBuffer,
                          sal_Bool bReport=sal_False);

    RegError	mergeModuleValue(OStoreStream& rTargetValue,
                                 RegistryTypeReader& reader, 
                                 RegistryTypeReader& reader2);
    
    RegError	loadAndSaveKeys(ORegKey* pTargetKey, 
                                ORegKey* pSourceKey, 
                                const OUString& keyName, 
                                sal_uInt32 nCut,
                                sal_Bool bWarnings=sal_False,
                                sal_Bool bReport=sal_False);

    RegError	dumpValue(const OUString& sPath, 
                          const OUString& sName, 
                          sal_Int16 nSpace) const;			

    RegError	dumpKey(const OUString& sPath, 
                        const OUString& sName, 
                        sal_Int16 nSpace) const;

    RegError	openKeyWithoutLink(RegKeyHandle hKey, 
                                   const OUString& keyName, 
                                   RegKeyHandle* phOpenKey);

    OUString resolveLinks(ORegKey* pKey, const OUString& path);
    ORegKey* resolveLink(ORegKey* pKey, OUString& resolvedPath, const OUString& name);

    sal_Bool insertRecursionLink(ORegKey* pLink);
    sal_Bool resetRecursionLinks();

protected:

    sal_uInt32 		m_refCount;
    Mutex	    	m_mutex;
    sal_Bool   		m_readOnly;
    sal_Bool   		m_isOpen;
    OUString   		m_name;
    OStoreFile 		m_file;
    KeyMap	   		m_openKeyTable;
    LinkList   		m_recursionList;

    const OUString  ROOT;
};

#endif