/* -*- 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 .
*/
#pragma once
#include <sal/config.h>
#include <memory>
#include <sal/types.h>
#include <rtl/ustring.h>
#include <salhelper/simplereferenceobject.hxx>
#include <store/types.h>
#include "storbase.hxx"
namespace rtl { template <class reference_type> class Reference; }
namespace store
{
class ILockBytes : public virtual salhelper::SimpleReferenceObject
{
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 (
std::shared_ptr<PageData> & rPage,
sal_uInt32 nOffset);
/**
@ param rPage [ in ]
@ param nOffset [ in ]
*/
storeError writePageAt (
std::shared_ptr<PageData> 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();
protected :
virtual ~ILockBytes() override {}
private :
/** Implementation (abstract).
*/
virtual storeError initialize_Impl (
rtl::Reference< PageData::Allocator > & rxAllocator,
sal_uInt16 nPageSize) = 0 ;
virtual storeError readPageAt_Impl (
std::shared_ptr<PageData> & rPage,
sal_uInt32 nOffset) = 0 ;
virtual storeError writePageAt_Impl (
std::shared_ptr<PageData> 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 ;
};
storeError FileLockBytes_createInstance (
rtl::Reference< store::ILockBytes > & rxLockBytes,
rtl_uString * pFilename,
storeAccessMode eAccessMode
);
storeError MemoryLockBytes_createInstance (
rtl::Reference< store::ILockBytes > & rxLockBytes
);
} // namespace store
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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