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/* -*- 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 _STORE_STORCACH_HXX
#define _STORE_STORCACH_HXX
#include "sal/types.h"
#include "rtl/ref.hxx"
#include "store/types.h"
#include "storbase.hxx"
namespace store
{
/*========================================================================
*
* PageCache interface.
*
*======================================================================*/
class PageCache : public rtl::IReference
{
public:
/** load.
*/
storeError lookupPageAt (
PageHolder & rxPage,
sal_uInt32 nOffset);
/** insert.
*/
storeError insertPageAt (
PageHolder const & rxPage,
sal_uInt32 nOffset);
/** update, or insert.
*/
storeError updatePageAt (
PageHolder const & rxPage,
sal_uInt32 nOffset);
/** remove (invalidate).
*/
storeError removePageAt (
sal_uInt32 nOffset);
protected:
~PageCache() {}
private:
/** Implementation (abstract).
*/
virtual storeError lookupPageAt_Impl (
PageHolder & rxPage,
sal_uInt32 nOffset) = 0;
virtual storeError insertPageAt_Impl (
PageHolder const & rxPage,
sal_uInt32 nOffset) = 0;
virtual storeError updatePageAt_Impl (
PageHolder const & rxPage,
sal_uInt32 nOffset) = 0;
virtual storeError removePageAt_Impl (
sal_uInt32 nOffset) = 0;
};
/*========================================================================
*
* PageCache factory.
*
*======================================================================*/
storeError
PageCache_createInstance (
rtl::Reference< store::PageCache > & rxCache,
sal_uInt16 nPageSize
);
/*========================================================================
*
* The End.
*
*======================================================================*/
} // namespace store
#endif /* !_STORE_STORCACH_HXX */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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