108 lines
2.9 KiB
C++
108 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_STORE_SOURCE_STORCACH_HXX
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#define INCLUDED_STORE_SOURCE_STORCACH_HXX
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#include "sal/types.h"
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#include "rtl/ref.hxx"
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#include "store/types.h"
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#include "storbase.hxx"
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namespace store
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{
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/*========================================================================
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*
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* PageCache interface.
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*
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*======================================================================*/
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class PageCache : public virtual salhelper::SimpleReferenceObject
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{
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public:
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/** load.
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*/
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storeError lookupPageAt (
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PageHolder & rxPage,
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sal_uInt32 nOffset);
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/** insert.
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*/
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storeError insertPageAt (
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PageHolder const & rxPage,
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sal_uInt32 nOffset);
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/** update, or insert.
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*/
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storeError updatePageAt (
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PageHolder const & rxPage,
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sal_uInt32 nOffset);
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/** remove (invalidate).
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*/
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storeError removePageAt (
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sal_uInt32 nOffset);
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protected:
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virtual ~PageCache() {}
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private:
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/** Implementation (abstract).
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*/
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virtual storeError lookupPageAt_Impl (
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PageHolder & rxPage,
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sal_uInt32 nOffset) = 0;
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virtual storeError insertPageAt_Impl (
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PageHolder const & rxPage,
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sal_uInt32 nOffset) = 0;
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virtual storeError updatePageAt_Impl (
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PageHolder const & rxPage,
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sal_uInt32 nOffset) = 0;
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virtual storeError removePageAt_Impl (
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sal_uInt32 nOffset) = 0;
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};
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/*========================================================================
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*
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* PageCache factory.
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*
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*======================================================================*/
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storeError
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PageCache_createInstance (
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rtl::Reference< store::PageCache > & rxCache,
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sal_uInt16 nPageSize
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);
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/*========================================================================
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*
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* The End.
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*
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*======================================================================*/
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} // namespace store
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#endif // INCLUDED_STORE_SOURCE_STORCACH_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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