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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: lockbyte.hxx,v $
*
* $Revision: 1.1.2.1 $
*
* last change: $Author: mhu $ $Date: 2008/09/18 16:10:50 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 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
*
************************************************************************/
#ifndef _STORE_LOCKBYTE_HXX_
#define _STORE_LOCKBYTE_HXX_ "$Revision: 1.1.2.1 $"
#ifndef _SAL_TYPES_H_
#include "sal/types.h"
#endif
#ifndef _RTL_REF_HXX_
#include "rtl/ref.hxx"
#endif
#ifndef _RTL_USTRING_H_
#include "rtl/ustring.h"
#endif
#ifndef _STORE_TYPES_H_
#include "store/types.h"
#endif
#ifndef _STORE_STORBASE_HXX_
#include "storbase.hxx"
#endif
namespace store
{
/*========================================================================
*
* ILockBytes interface.
*
*======================================================================*/
class ILockBytes : public rtl::IReference
{
public:
/**
@param rxAllocator [out]
@param nPageSize [in]
*/
storeError initialize (
rtl::Reference< PageData::Allocator > & rxAllocator,
sal_uInt16 nPageSize);
/**
@param rPage [out]
@param nOffset [in]
*/
storeError readPageAt (
PageHolder & rPage,
sal_uInt32 nOffset);
/**
@param rPage [in]
@param nOffset [in]
*/
storeError writePageAt (
PageHolder const & rPage,
sal_uInt32 nOffset);
/**
@param nOffset [in]
@param pBuffer [out]
@param nBytes [in]
@return store_E_None upon success
*/
storeError readAt (
sal_uInt32 nOffset,
void *pBuffer,
sal_uInt32 nBytes);
/**
@param nOffset [in]
@param pBuffer [in]
@param nBytes [in]
@return store_E_None upon success
*/
storeError writeAt (
sal_uInt32 nOffset,
const void *pBuffer,
sal_uInt32 nBytes);
/**
@param rnSize [out]
@return store_E_None upon success
*/
storeError getSize (sal_uInt32 & rnSize);
/**
@param nSize [in]
@return store_E_None upon success
*/
storeError setSize (sal_uInt32 nSize);
/**
@return store_E_None upon success
*/
storeError flush();
/**
@param nOffset [in]
@param nBytes [in]
@return store_E_None upon success
store_E_LockingViolation
*/
storeError lockRange (
sal_uInt32 nOffset,
sal_uInt32 nBytes);
/**
@param nOffset [in]
@param nBytes [in]
@return store_E_None upon success
store_E_LockingViolation
*/
storeError unlockRange (
sal_uInt32 nOffset,
sal_uInt32 nBytes);
private:
/** Implementation (abstract).
*/
virtual storeError initialize_Impl (
rtl::Reference< PageData::Allocator > & rxAllocator,
sal_uInt16 nPageSize) = 0;
virtual storeError readPageAt_Impl (
PageHolder & rPage,
sal_uInt32 nOffset) = 0;
virtual storeError writePageAt_Impl (
PageHolder const & rPage,
sal_uInt32 nOffset) = 0;
virtual storeError readAt_Impl (
sal_uInt32 nOffset,
void *pBuffer,
sal_uInt32 nBytes) = 0;
virtual storeError writeAt_Impl (
sal_uInt32 nOffset,
const void *pBuffer,
sal_uInt32 nBytes) = 0;
virtual storeError getSize_Impl (
sal_uInt32 & rnSize) = 0;
virtual storeError setSize_Impl (
sal_uInt32 nSize) = 0;
virtual storeError flush_Impl() = 0;
#ifdef STORE_FEATURE_LOCKING
virtual storeError lockRange_Impl (
sal_uInt32 nOffset,
sal_uInt32 nBytes) = 0;
virtual storeError unlockRange_Impl (
sal_uInt32 nOffset,
sal_uInt32 nBytes) = 0;
#endif /* STORE_FEATURE_LOCKING */
};
/*========================================================================
*
* ILockBytes factories.
*
*======================================================================*/
storeError
FileLockBytes_createInstance (
rtl::Reference< store::ILockBytes > & rxLockBytes,
rtl_uString * pFilename,
storeAccessMode eAccessMode
);
storeError
MemoryLockBytes_createInstance (
rtl::Reference< store::ILockBytes > & rxLockBytes
);
/*========================================================================
*
* The End.
*
*======================================================================*/
} // namespace store
#endif /* !_STORE_LOCKBYTE_HXX_ */
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